https://gfxpromarkets.com/

ID da verificação: 11fdf96d-f05d-492b-8949-1dafd9178521Concluído
URL enviado:: https://gfxpromarkets.com/
Relatório concluído:: 26/11/2024, 08:42:36
Ligações · 2 encontradas

As ligações de saída identificadas na página
Hiperligação	Texto
https://lekarensk.com/kupit-genericky-cialis/	na tomto webe
https://bullfxprime.online/n/#	Zulu
Variáveis JavaScript · 44 encontradas

Variáveis JavaScript globais carregadas no objeto janela de uma página são variáveis declaradas fora das funções e acessíveis de qualquer parte do código dentro do âmbito atual
Nome	Tipo
onbeforetoggle	object
documentPictureInPicture	object
onscrollend	object
_wpemojiSettings	object
$	undefined
jQuery	function
swv	object
wpcf7	object
runtime	object
regeneratorRuntime	object
Mensagens de registo da consola · 26 encontradas

Mensagens registadas na consola web
Tipo	Categoria	Registo
error	network	URL https://bullfxprime.online/n/wp-content/themes/flatsome/assets/js/chunk.countup.fe2c1016.js Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://bullfxprime.online/n/wp-content/themes/flatsome/assets/js/chunk.sticky-sidebar.a58a6557.js Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://bullfxprime.online/n/wp-content/themes/flatsome/assets/js/chunk.tooltips.29144c1c.js Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://code.tidio.co/ji51ckra1v92gl0tepsiop48dgxdgla9.js Texto Failed to load resource: the server responded with a status of 403 ()
error	network	URL https://bullfxprime.online/n/wp-content/themes/flatsome/assets/js/chunk.vendors-popups.947eca5c.js Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://bullfxprime.online/n/wp-content/themes/flatsome/assets/js/chunk.vendors-slider.f0d2cbc9.js Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL chrome-extension://invalid/ Texto Failed to load resource: net::ERR_BLOCKED_BY_CLIENT
error	network	URL https://bullfxprime.online/n/wp-includes/js/wp-emoji-release.min.js?ver=6.2.2 Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://gfxpromarkets.com/index_files/css Texto Failed to load resource: the server responded with a status of 404 ()
log	other	URL https://gfxpromarkets.com/index_files/jquery-migrate.min.js.download Texto JQMIGRATE: Migrate is installed, version 3.4.0
error	network	URL chrome-extension://invalid/ Texto Failed to load resource: net::ERR_BLOCKED_BY_CLIENT
error	network	URL https://bullfxprime.online/n/wp-content/uploads/2022/10/Content-Marketing-Strategies-For-Forex-Brokers.jpg Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://bullfxprime.online/n/wp-content/uploads/2022/10/in-liquid-slide-bg.png Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://bullfxprime.online/n/wp-content/themes/flatsome/assets/css/icons/fl-icons.woff2?v=3.15.3 Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
warning	other	URL https://gfxpromarkets.com/index_files/flatsome.js.download Texto Listener added for a synchronous 'DOMNodeInserted' DOM Mutation Event. This event type is deprecated (https://w3c.github.io/uievents/#legacy-event-types) and work is underway to remove it from this browser. Usage of this event listener will cause performance issues today, and represents a risk of future incompatibility. Consider using MutationObserver instead.
error	network	URL https://bullfxprime.online/n/wp-content/themes/flatsome/assets/css/icons/fl-icons.ttf?v=3.15.3 Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://bullfxprime.online/n/wp-content/themes/flatsome/assets/css/icons/fl-icons.woff?v=3.15.3 Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://gfxpromarkets.com/webfonts/fa-solid-900.woff2 Texto Failed to load resource: the server responded with a status of 404 ()
error	network	URL https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/en.png Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
error	network	URL https://gfxpromarkets.com/font/ccpwicons.woff2?89136625 Texto Failed to load resource: the server responded with a status of 404 ()
error	network	URL https://gfxpromarkets.com/webfonts/fa-solid-900.woff Texto Failed to load resource: the server responded with a status of 404 ()
error	network	URL https://gfxpromarkets.com/font/ccpwicons.woff?89136625 Texto Failed to load resource: the server responded with a status of 404 ()
error	network	URL https://gfxpromarkets.com/webfonts/fa-solid-900.ttf Texto Failed to load resource: the server responded with a status of 404 ()
error	network	URL https://gfxpromarkets.com/font/ccpwicons.ttf?89136625 Texto Failed to load resource: the server responded with a status of 404 ()
error	network	URL https://gfxpromarkets.com/favicon.ico Texto Failed to load resource: the server responded with a status of 404 ()
error	network	URL https://bullfxprime.online/n/wp-content/uploads/2022/10/in-liquid-slide-bg.png Texto Failed to load resource: net::ERR_CONNECTION_CLOSED
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<h2 class="elementor-heading-title elementor-size-default" style="text-align: left;">Trade Crypto Shares and Forex with Financial Thinking</h2>
<p class="elementor-heading-title elementor-size-default lead" style="text-align: left;">Access 40,000+ instruments – across asset classes – to trade, hedge and invest from a single account.</p>
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<p>Vyzerá to veľmi, však? Ale predstaviť si na sekundu nie je malá kabína s príchuťou blízkych psov, ale krásny, priestranný a predovšetkým čistý priestor, kde môžete stlačiť drahé tlačidlo „Zastavte výťah“. Nepísateľné pocity rizika, ktoré sa majú podstúpiť v najzodpovednejšom okamihu, vám pomôžu nadchnúť a rýchlo, ale kvalitatívne. Správne miesto pre sex vo výťahu je štandardné – <a href="https://lekarensk.com/kupit-genericky-cialis/">na tomto webe</a> na stene a vezme vás za boky.</p>
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<h3 class="uppercase"><!-- Cryptocurrency Widgets - Version:- 2.6.1 By Cool Plugins (CoolPlugins.net) --><div style="" class="ccpw-container ccpw-ticker-cont "><div class="tickercontainer" style="height: auto; overflow: hidden;"><div class="tickercontainer" style="max-width: 100%;"><div class="bx-viewport" style="width: 100%; overflow: hidden; position: relative; height: 35.525px;"><div class="tickercontainer" style="max-width: 100%;"><div class="bx-viewport" style="width: 100%; overflow: hidden; position: relative; height: 35.8281px;"><ul data-tickerspeed="35000" id="ccpw-ticker-widget-497" style="width: 18215%; position: relative; transition-duration: 70s; transform: translate3d(-2562.03px, 0px, 0px); transition-timing-function: linear;"><li id="bitcoin" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="bitcoin" alt="bitcoin" src="./index_files/bitcoin.svg"></span><span class="name">Bitcoin(BTC)</span><span class="price">$29,038.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.02%</span></div></li><li id="ethereum" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="ethereum" alt="ethereum" src="./index_files/ethereum.svg"></span><span class="name">Ethereum(ETH)</span><span class="price">$1,833.31</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.25%</span></div></li><li id="tether" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="tether" alt="tether" src="./index_files/tether.svg"></span><span class="name">Tether(USDT)</span><span class="price">$1.00</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.05%</span></div></li><li id="binancecoin" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="binancecoin" alt="binancecoin" src="./index_files/binancecoin.svg"></span><span class="name">BNB(BNB)</span><span class="price">$242.82</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.62%</span></div></li><li id="ripple" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="ripple" alt="ripple" src="./index_files/ripple.svg"></span><span class="name">XRP(XRP)</span><span class="price">$0.63</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-1.06%</span></div></li><li id="usd-coin" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="usd-coin" alt="usd-coin" src="./index_files/usd-coin.svg"></span><span class="name">USD Coin(USDC)</span><span class="price">$1.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.02%</span></div></li><li id="cardano" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="cardano" alt="cardano" src="./index_files/cardano.svg"></span><span class="name">Cardano(ADA)</span><span class="price">$0.292345</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.35%</span></div></li><li id="polkadot" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="polkadot" alt="polkadot" src="./index_files/polkadot.svg"></span><span class="name">Polkadot(DOT)</span><span class="price">$4.96</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.47%</span></div></li><li id="binance-usd" style="float: left; list-style: none; position: relative;"><div class="coin-container"><span class="ccpw_icon"><img id="binance-usd" alt="binance-usd" src="./index_files/binance-usd.svg"></span><span class="name">Binance USD(BUSD)</span><span class="price">$1.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.04%</span></div></li><li id="bitcoin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="bitcoin" alt="bitcoin" src="./index_files/bitcoin.svg"></span><span class="name">Bitcoin(BTC)</span><span class="price">$29,038.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.02%</span></div></li><li id="ethereum" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="ethereum" alt="ethereum" src="./index_files/ethereum.svg"></span><span class="name">Ethereum(ETH)</span><span class="price">$1,833.31</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.25%</span></div></li><li id="tether" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="tether" alt="tether" src="./index_files/tether.svg"></span><span class="name">Tether(USDT)</span><span class="price">$1.00</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.05%</span></div></li><li id="binancecoin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="binancecoin" alt="binancecoin" src="./index_files/binancecoin.svg"></span><span class="name">BNB(BNB)</span><span class="price">$242.82</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.62%</span></div></li><li id="ripple" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="ripple" alt="ripple" src="./index_files/ripple.svg"></span><span class="name">XRP(XRP)</span><span class="price">$0.63</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-1.06%</span></div></li><li id="usd-coin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="usd-coin" alt="usd-coin" src="./index_files/usd-coin.svg"></span><span class="name">USD Coin(USDC)</span><span class="price">$1.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.02%</span></div></li><li id="cardano" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="cardano" alt="cardano" src="./index_files/cardano.svg"></span><span class="name">Cardano(ADA)</span><span class="price">$0.292345</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.35%</span></div></li><li id="polkadot" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="polkadot" alt="polkadot" src="./index_files/polkadot.svg"></span><span class="name">Polkadot(DOT)</span><span class="price">$4.96</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.47%</span></div></li><li id="binance-usd" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="binance-usd" alt="binance-usd" src="./index_files/binance-usd.svg"></span><span class="name">Binance USD(BUSD)</span><span class="price">$1.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.04%</span></div></li><li id="bitcoin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="bitcoin" alt="bitcoin" src="./index_files/bitcoin.svg"></span><span class="name">Bitcoin(BTC)</span><span class="price">$29,038.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.02%</span></div></li><li id="ethereum" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="ethereum" alt="ethereum" src="./index_files/ethereum.svg"></span><span class="name">Ethereum(ETH)</span><span class="price">$1,833.31</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.25%</span></div></li><li id="tether" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="tether" alt="tether" src="./index_files/tether.svg"></span><span class="name">Tether(USDT)</span><span class="price">$1.00</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.05%</span></div></li><li id="binancecoin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="binancecoin" alt="binancecoin" src="./index_files/binancecoin.svg"></span><span class="name">BNB(BNB)</span><span class="price">$242.82</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.62%</span></div></li><li id="ripple" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="ripple" alt="ripple" src="./index_files/ripple.svg"></span><span class="name">XRP(XRP)</span><span class="price">$0.63</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-1.06%</span></div></li><li id="usd-coin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="usd-coin" alt="usd-coin" src="./index_files/usd-coin.svg"></span><span class="name">USD Coin(USDC)</span><span class="price">$1.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.02%</span></div></li><li id="cardano" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="cardano" alt="cardano" src="./index_files/cardano.svg"></span><span class="name">Cardano(ADA)</span><span class="price">$0.292345</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.35%</span></div></li><li id="polkadot" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="polkadot" alt="polkadot" src="./index_files/polkadot.svg"></span><span class="name">Polkadot(DOT)</span><span class="price">$4.96</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.47%</span></div></li><li id="binance-usd" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="binance-usd" alt="binance-usd" src="./index_files/binance-usd.svg"></span><span class="name">Binance USD(BUSD)</span><span class="price">$1.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.04%</span></div></li><li id="bitcoin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="bitcoin" alt="bitcoin" src="./index_files/bitcoin.svg"></span><span class="name">Bitcoin(BTC)</span><span class="price">$29,038.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.02%</span></div></li><li id="ethereum" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="ethereum" alt="ethereum" src="./index_files/ethereum.svg"></span><span class="name">Ethereum(ETH)</span><span class="price">$1,833.31</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.25%</span></div></li><li id="tether" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="tether" alt="tether" src="./index_files/tether.svg"></span><span class="name">Tether(USDT)</span><span class="price">$1.00</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.05%</span></div></li><li id="binancecoin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="binancecoin" alt="binancecoin" src="./index_files/binancecoin.svg"></span><span class="name">BNB(BNB)</span><span class="price">$242.82</span><span class="changes up"><i class="ccpw_icon-up" aria-hidden="true"></i>0.62%</span></div></li><li id="ripple" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="ripple" alt="ripple" src="./index_files/ripple.svg"></span><span class="name">XRP(XRP)</span><span class="price">$0.63</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-1.06%</span></div></li><li id="usd-coin" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="usd-coin" alt="usd-coin" src="./index_files/usd-coin.svg"></span><span class="name">USD Coin(USDC)</span><span class="price">$1.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.02%</span></div></li><li id="cardano" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="cardano" alt="cardano" src="./index_files/cardano.svg"></span><span class="name">Cardano(ADA)</span><span class="price">$0.292345</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.35%</span></div></li><li id="polkadot" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="polkadot" alt="polkadot" src="./index_files/polkadot.svg"></span><span class="name">Polkadot(DOT)</span><span class="price">$4.96</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.47%</span></div></li><li id="binance-usd" style="float: left; list-style: none; position: relative;" class="bx-clone"><div class="coin-container"><span class="ccpw_icon"><img id="binance-usd" alt="binance-usd" src="./index_files/binance-usd.svg"></span><span class="name">Binance USD(BUSD)</span><span class="price">$1.00</span><span class="changes down"><i class="ccpw_icon-down" aria-hidden="true"></i>-0.04%</span></div></li></ul></div></div></div></div></div></div><style>.tickercontainer #ccpw-ticker-widget-497{background-color:#000000;}
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<h3 class="elementor-heading-title elementor-size-default"><span style="color: #99cc00;"><strong>Withdraw Profit</strong></span></h3>
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</div>
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<p class="elementor-heading-title elementor-size-default">Instead withdraw after 24 – 72 hours.</p>
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<h1 class="elementor-heading-title elementor-size-default" style="text-align: left;" data-animate-delay="200"><span style="font-size: 140%; color: #fcfcfc;">Industry-leading prices</span></h1>
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<p class="elementor-heading-title elementor-size-default lead" style="text-align: left;"><span style="font-size: 105%;">Get ultra-competitive spreads and commissions across all asset classes. Receive even better rates as your volume increases.</span></p>
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<p><span style="font-size: 105%;"><strong>FX</strong></span><br>
Spread as low as</p>
<div class="elementor-element elementor-element-606cf682 elementor-widget elementor-widget-heading" data-id="606cf682" data-element_type="widget" data-widget_type="heading.default">
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<h1 class="elementor-heading-title elementor-size-default" data-line-height="s"><span style="font-size: 115%;">0.2</span></h1>
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<p data-line-height="s">pip</p>
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<p>Trade 182 FX spot pairs and 140 forwards across majors, minors, exotics and metals.</p>
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<p><span style="font-size: 110%;"><strong>Crypto</strong></span><br>
Trade from</p>
<div data-id="606cf682" data-element_type="widget" data-widget_type="heading.default">
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<h2>0.4</h2>
</div>
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<div data-id="70f0abf5" data-element_type="widget" data-widget_type="heading.default">
<p class="elementor-heading-title elementor-size-default">on £500</p>
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<p>Trade and invest confidently in top performing Cryptocurrencies with our timely Trading signals that ensure your profitability from day one.</p>
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<p><span style="font-size: 110%;"><strong>Stocks</strong></span><br>
Commissions from</p>
<p><span style="font-size: 140%;"><strong>£3</strong></span><br>
on US stocks</p>
<p class="elementor-heading-title elementor-size-default">Access 19,000+ stocks across core and emerging markets on 36 exchanges worldwide.</p>
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<p><span style="font-size: 105%;"><strong>Real Estate</strong></span><br>
Procure for as low as</p>
<p><span style="font-size: 110%;"><strong>£100</strong></span><br>
per slot</p>
<p class="elementor-heading-title elementor-size-default">Simplified Real Estate investment for relatively small amounts through our crowdfunding model.</p>
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<h1><span style="font-size: 110%;">Market analysis and trade inspiration</span></h1>
<p class="lead" style="text-align: left;"><span style="font-size: 90%;">With a thriving network of experts, being a client of gfxpromarket opens doors to many opportunities. Powerful market insight and the top trade setups in the industry. You will have extensive connections to professional traders.</span></p>
		
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<p class="elementor-heading-title elementor-size-default"><strong><span style="font-size: 120%;">Strategies&nbsp; </span></strong></p>
<p class="elementor-heading-title elementor-size-default"><strong><span style="font-size: 120%;">&amp;&nbsp;</span></strong></p>
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<p class="elementor-heading-title elementor-size-default"><strong>Forecasts</strong></p>
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<h5 class="elementor-heading-title elementor-size-default"><span style="font-size: 105%;">MINIMUM FUNDING</span> &nbsp;<span style="font-size: 120%; background-color: #008080; color: #ffffff;"><strong> $50&nbsp;</strong></span></h5>
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<ul>
<li class="bullet-checkmark">Min. Deposit: $50</li>
<li class="bullet-checkmark">Max. Deposit: $500</li>
<li class="bullet-checkmark">Expected Profit: 20%</li>
<li class="bullet-checkmark">Duration: 24 hours</li>
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<h5 class="elementor-heading-title elementor-size-default"><span style="font-size: 105%;">MINIMUM FUNDING</span> &nbsp;<span style="font-size: 120%; background-color: #008080; color: #ffffff;"><strong> $500&nbsp;</strong></span></h5>
</div>
</div>
</div>
</div>
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<h2 class="elementor-heading-title elementor-size-default">Silver plan</h2>
</div>
</div>
</div>
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<ul>
<li class="bullet-checkmark">Min. Deposit: $500</li>
<li class="bullet-checkmark">Max. Deposit: $1000</li>
<li class="bullet-checkmark">Expected Profit: 50%</li>
<li class="bullet-checkmark">Duration: 48 hours</li>
</ul>
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<h5 class="elementor-heading-title elementor-size-default"><span style="font-size: 105%;">MINIMUM FUNDING</span> &nbsp;<span style="font-size: 120%; background-color: #008080; color: #ffffff;"><strong> $1000&nbsp;</strong></span></h5>
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<h2 class="elementor-heading-title elementor-size-default"><strong>Gold plan</strong></h2>
</div>
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<h5 class="elementor-heading-title elementor-size-default"><span style="font-size: 105%;">MINIMUM FUNDING</span> &nbsp;<span style="font-size: 120%; background-color: #008080; color: #ffffff;"><strong> $5000&nbsp;</strong></span></h5>
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<li class="bullet-checkmark">Expected Profit: 150%</li>
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<h3 class="elementor-heading-title elementor-size-default uppercase" style="text-align: center;"><span style="font-size: 170%; color: #ffffff;">Why Investors choose Us</span></h3>
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<h1><span class="count-up">7</span>years</h1>
<h3><span style="font-size: 100%;"><strong>years</strong></span><br>
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<p>Since 2013</p>
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<h1><span class="count-up">5</span> years</h1>
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<h1><span class="count-up">700</span></h1>
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<h1>24/7</h1>
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<p class="elementor-heading-title elementor-size-default lead" style="text-align: left;"><span style="font-size: 90%;">gfxpromarket is an online Forex and cryptocurrency STP broker providing CFD trading on hundreds of assets and optimal trading conditions within the award-winning MT4 platform. gfxpromarket offers deep liquidity, generous leverage up to 1:500, and some of the best spreads in the industry. As part of our commitment to our client’s satisfaction, we offer 24/7 live customer service, charge no deposit or withdrawal fees, and process withdrawals within 30-minutes or less. We feel that these, along with many other advantages, help to set us apart from the rest.</span></p>
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data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/lb.png"> Luxembourgish</a><a href="https://bullfxprime.online/n/#" title="Macedonian" class="nturl" data-gt-lang="mk"><img width="24" height="24" alt="mk" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mk.png"> Macedonian</a><a href="https://bullfxprime.online/n/#" title="Malagasy" class="nturl" data-gt-lang="mg"><img width="24" height="24" alt="mg" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mg.png"> Malagasy</a><a href="https://bullfxprime.online/n/#" title="Malay" class="nturl" data-gt-lang="ms"><img width="24" height="24" alt="ms" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ms.png"> Malay</a><a href="https://bullfxprime.online/n/#" title="Malayalam" class="nturl" data-gt-lang="ml"><img width="24" height="24" alt="ml" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ml.png"> Malayalam</a><a href="https://bullfxprime.online/n/#" title="Maltese" class="nturl" data-gt-lang="mt"><img width="24" height="24" alt="mt" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mt.png"> Maltese</a><a href="https://bullfxprime.online/n/#" title="Maori" class="nturl" data-gt-lang="mi"><img width="24" height="24" alt="mi" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mi.png"> Maori</a><a href="https://bullfxprime.online/n/#" title="Marathi" class="nturl" data-gt-lang="mr"><img width="24" height="24" alt="mr" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mr.png"> Marathi</a><a href="https://bullfxprime.online/n/#" title="Mongolian" class="nturl" data-gt-lang="mn"><img width="24" height="24" alt="mn" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mn.png"> Mongolian</a><a href="https://bullfxprime.online/n/#" title="Myanmar (Burmese)" class="nturl" data-gt-lang="my"><img width="24" height="24" alt="my" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/my.png"> Myanmar (Burmese)</a><a href="https://bullfxprime.online/n/#" title="Nepali" class="nturl" data-gt-lang="ne"><img width="24" height="24" alt="ne" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ne.png"> Nepali</a><a href="https://bullfxprime.online/n/#" title="Norwegian" class="nturl" data-gt-lang="no"><img width="24" height="24" alt="no" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/no.png"> Norwegian</a><a href="https://bullfxprime.online/n/#" title="Pashto" class="nturl" data-gt-lang="ps"><img width="24" height="24" alt="ps" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ps.png"> Pashto</a><a href="https://bullfxprime.online/n/#" title="Persian" class="nturl" data-gt-lang="fa"><img width="24" height="24" alt="fa" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/fa.png"> Persian</a><a href="https://bullfxprime.online/n/#" title="Polish" class="nturl" data-gt-lang="pl"><img width="24" height="24" alt="pl" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/pl.png"> Polish</a><a href="https://bullfxprime.online/n/#" title="Portuguese" class="nturl" data-gt-lang="pt"><img width="24" height="24" alt="pt" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/pt.png"> Portuguese</a><a href="https://bullfxprime.online/n/#" title="Punjabi" class="nturl" data-gt-lang="pa"><img width="24" height="24" alt="pa" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/pa.png"> Punjabi</a><a href="https://bullfxprime.online/n/#" title="Romanian" class="nturl" data-gt-lang="ro"><img width="24" height="24" alt="ro" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ro.png"> Romanian</a><a href="https://bullfxprime.online/n/#" title="Russian" class="nturl" data-gt-lang="ru"><img width="24" height="24" alt="ru" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ru.png"> Russian</a><a href="https://bullfxprime.online/n/#" title="Samoan" class="nturl" data-gt-lang="sm"><img width="24" height="24" alt="sm" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sm.png"> Samoan</a><a href="https://bullfxprime.online/n/#" title="Scottish Gaelic" class="nturl" data-gt-lang="gd"><img width="24" height="24" alt="gd" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/gd.png"> Scottish Gaelic</a><a href="https://bullfxprime.online/n/#" title="Serbian" class="nturl" data-gt-lang="sr"><img width="24" height="24" alt="sr" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sr.png"> Serbian</a><a href="https://bullfxprime.online/n/#" title="Sesotho" class="nturl" data-gt-lang="st"><img width="24" height="24" alt="st" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/st.png"> Sesotho</a><a href="https://bullfxprime.online/n/#" title="Shona" class="nturl" data-gt-lang="sn"><img width="24" height="24" alt="sn" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sn.png"> Shona</a><a href="https://bullfxprime.online/n/#" title="Sindhi" class="nturl" data-gt-lang="sd"><img width="24" height="24" alt="sd" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sd.png"> Sindhi</a><a href="https://bullfxprime.online/n/#" title="Sinhala" class="nturl" data-gt-lang="si"><img width="24" height="24" alt="si" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/si.png"> Sinhala</a><a href="https://bullfxprime.online/n/#" title="Slovak" class="nturl" data-gt-lang="sk"><img width="24" height="24" alt="sk" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sk.png"> Slovak</a><a href="https://bullfxprime.online/n/#" title="Slovenian" class="nturl" data-gt-lang="sl"><img width="24" height="24" alt="sl" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sl.png"> Slovenian</a><a href="https://bullfxprime.online/n/#" title="Somali" class="nturl" data-gt-lang="so"><img width="24" height="24" alt="so" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/so.png"> Somali</a><a href="https://bullfxprime.online/n/#" title="Spanish" class="nturl" data-gt-lang="es"><img width="24" height="24" alt="es" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/es.png"> Spanish</a><a href="https://bullfxprime.online/n/#" title="Sundanese" class="nturl" data-gt-lang="su"><img width="24" height="24" alt="su" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/su.png"> Sundanese</a><a href="https://bullfxprime.online/n/#" title="Swahili" class="nturl" data-gt-lang="sw"><img width="24" height="24" alt="sw" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sw.png"> Swahili</a><a href="https://bullfxprime.online/n/#" title="Swedish" class="nturl" data-gt-lang="sv"><img width="24" height="24" alt="sv" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sv.png"> Swedish</a><a href="https://bullfxprime.online/n/#" title="Tajik" class="nturl" data-gt-lang="tg"><img width="24" height="24" alt="tg" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/tg.png"> Tajik</a><a href="https://bullfxprime.online/n/#" title="Tamil" class="nturl" data-gt-lang="ta"><img width="24" height="24" alt="ta" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ta.png"> Tamil</a><a href="https://bullfxprime.online/n/#" title="Telugu" class="nturl" data-gt-lang="te"><img width="24" height="24" alt="te" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/te.png"> Telugu</a><a href="https://bullfxprime.online/n/#" title="Thai" class="nturl" data-gt-lang="th"><img width="24" height="24" alt="th" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/th.png"> Thai</a><a href="https://bullfxprime.online/n/#" title="Turkish" class="nturl" data-gt-lang="tr"><img width="24" height="24" alt="tr" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/tr.png"> Turkish</a><a href="https://bullfxprime.online/n/#" title="Ukrainian" class="nturl" data-gt-lang="uk"><img width="24" height="24" alt="uk" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/uk.png"> Ukrainian</a><a href="https://bullfxprime.online/n/#" title="Urdu" class="nturl" data-gt-lang="ur"><img width="24" height="24" alt="ur" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ur.png"> Urdu</a><a href="https://bullfxprime.online/n/#" title="Uzbek" class="nturl" data-gt-lang="uz"><img width="24" height="24" alt="uz" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/uz.png"> Uzbek</a><a href="https://bullfxprime.online/n/#" title="Vietnamese" class="nturl" data-gt-lang="vi"><img width="24" height="24" alt="vi" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/vi.png"> Vietnamese</a><a href="https://bullfxprime.online/n/#" title="Welsh" class="nturl" data-gt-lang="cy"><img width="24" height="24" alt="cy" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/cy.png"> Welsh</a><a href="https://bullfxprime.online/n/#" title="Xhosa" class="nturl" data-gt-lang="xh"><img width="24" height="24" alt="xh" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/xh.png"> Xhosa</a><a href="https://bullfxprime.online/n/#" title="Yiddish" class="nturl" data-gt-lang="yi"><img width="24" height="24" alt="yi" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/yi.png"> Yiddish</a><a href="https://bullfxprime.online/n/#" title="Yoruba" class="nturl" data-gt-lang="yo"><img width="24" height="24" alt="yo" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/yo.png"> Yoruba</a><a href="https://bullfxprime.online/n/#" title="Zulu" class="nturl" data-gt-lang="zu"><img width="24" height="24" alt="zu" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/zu.png"> Zulu</a></div><div class="gt_selected"><a href="https://bullfxprime.online/n/#"><img src="./index_files/en.png" height="24" width="24" alt="en"> English</a></div></div></div><div class="gt_switcher_wrapper" style="position:fixed;bottom:0;left:8%;z-index:999999;"><!-- GTranslate: https://gtranslate.com --><div id="google_translate_element2"></div><div class="gt_switcher notranslate"><div class="gt_option"><a href="#" title="Afrikaans" class="nturl" data-gt-lang="af"><img width="24" height="24" alt="af" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/af.png"> Afrikaans</a><a href="#" title="Albanian" class="nturl" data-gt-lang="sq"><img width="24" height="24" alt="sq" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/sq.png"> Albanian</a><a href="#" title="Amharic" class="nturl" data-gt-lang="am"><img width="24" height="24" alt="am" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/am.png"> Amharic</a><a href="#" title="Arabic" class="nturl" data-gt-lang="ar"><img width="24" height="24" alt="ar" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ar.png"> Arabic</a><a href="#" title="Armenian" class="nturl" data-gt-lang="hy"><img width="24" height="24" alt="hy" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/hy.png"> Armenian</a><a href="#" title="Azerbaijani" class="nturl" data-gt-lang="az"><img width="24" height="24" alt="az" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/az.png"> Azerbaijani</a><a href="#" title="Basque" class="nturl" data-gt-lang="eu"><img width="24" height="24" alt="eu" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/eu.png"> Basque</a><a href="#" title="Belarusian" class="nturl" data-gt-lang="be"><img width="24" height="24" alt="be" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/be.png"> Belarusian</a><a href="#" title="Bengali" class="nturl" data-gt-lang="bn"><img width="24" height="24" alt="bn" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/bn.png"> Bengali</a><a href="#" title="Bosnian" class="nturl" data-gt-lang="bs"><img width="24" height="24" alt="bs" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/bs.png"> Bosnian</a><a href="#" title="Bulgarian" class="nturl" data-gt-lang="bg"><img width="24" height="24" alt="bg" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/bg.png"> Bulgarian</a><a href="#" title="Catalan" class="nturl" data-gt-lang="ca"><img width="24" height="24" alt="ca" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ca.png"> Catalan</a><a href="#" title="Cebuano" class="nturl" data-gt-lang="ceb"><img width="24" height="24" alt="ceb" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ceb.png"> Cebuano</a><a href="#" title="Chichewa" class="nturl" data-gt-lang="ny"><img width="24" height="24" alt="ny" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ny.png"> Chichewa</a><a href="#" title="Chinese (Simplified)" class="nturl" data-gt-lang="zh-CN"><img width="24" height="24" alt="zh-CN" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/zh-CN.png"> Chinese (Simplified)</a><a href="#" title="Chinese (Traditional)" class="nturl" data-gt-lang="zh-TW"><img width="24" height="24" alt="zh-TW" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/zh-TW.png"> Chinese (Traditional)</a><a href="#" title="Corsican" class="nturl" data-gt-lang="co"><img width="24" height="24" alt="co" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/co.png"> Corsican</a><a href="#" title="Croatian" class="nturl" data-gt-lang="hr"><img width="24" height="24" alt="hr" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/hr.png"> Croatian</a><a href="#" title="Czech" class="nturl" data-gt-lang="cs"><img width="24" height="24" alt="cs" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/cs.png"> Czech</a><a href="#" title="Danish" class="nturl" data-gt-lang="da"><img width="24" height="24" alt="da" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/da.png"> Danish</a><a href="#" title="Dutch" class="nturl" data-gt-lang="nl"><img width="24" height="24" alt="nl" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/nl.png"> Dutch</a><a href="#" title="English" class="nturl gt_current" data-gt-lang="en"><img width="24" height="24" alt="en" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/en.png"> English</a><a href="#" title="Esperanto" class="nturl" data-gt-lang="eo"><img width="24" height="24" alt="eo" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/eo.png"> Esperanto</a><a href="#" title="Estonian" class="nturl" data-gt-lang="et"><img width="24" height="24" alt="et" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/et.png"> Estonian</a><a href="#" title="Filipino" class="nturl" data-gt-lang="tl"><img width="24" height="24" alt="tl" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/tl.png"> Filipino</a><a href="#" title="Finnish" class="nturl" data-gt-lang="fi"><img width="24" height="24" alt="fi" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/fi.png"> Finnish</a><a href="#" title="French" class="nturl" data-gt-lang="fr"><img width="24" height="24" alt="fr" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/fr.png"> French</a><a href="#" title="Frisian" class="nturl" data-gt-lang="fy"><img width="24" height="24" alt="fy" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/fy.png"> Frisian</a><a href="#" title="Galician" class="nturl" data-gt-lang="gl"><img width="24" height="24" alt="gl" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/gl.png"> Galician</a><a href="#" title="Georgian" class="nturl" data-gt-lang="ka"><img width="24" height="24" alt="ka" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ka.png"> Georgian</a><a href="#" title="German" class="nturl" data-gt-lang="de"><img width="24" height="24" alt="de" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/de.png"> German</a><a href="#" title="Greek" class="nturl" data-gt-lang="el"><img width="24" height="24" alt="el" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/el.png"> Greek</a><a href="#" title="Gujarati" class="nturl" data-gt-lang="gu"><img width="24" height="24" alt="gu" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/gu.png"> Gujarati</a><a href="#" title="Haitian Creole" class="nturl" data-gt-lang="ht"><img width="24" height="24" alt="ht" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ht.png"> Haitian Creole</a><a href="#" title="Hausa" class="nturl" data-gt-lang="ha"><img width="24" height="24" alt="ha" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ha.png"> Hausa</a><a href="#" title="Hawaiian" class="nturl" data-gt-lang="haw"><img width="24" height="24" alt="haw" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/haw.png"> Hawaiian</a><a href="#" title="Hebrew" class="nturl" data-gt-lang="iw"><img width="24" height="24" alt="iw" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/iw.png"> Hebrew</a><a href="#" title="Hindi" class="nturl" data-gt-lang="hi"><img width="24" height="24" alt="hi" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/hi.png"> Hindi</a><a href="#" title="Hmong" class="nturl" data-gt-lang="hmn"><img width="24" height="24" alt="hmn" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/hmn.png"> Hmong</a><a href="#" title="Hungarian" class="nturl" data-gt-lang="hu"><img width="24" height="24" alt="hu" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/hu.png"> Hungarian</a><a href="#" title="Icelandic" class="nturl" data-gt-lang="is"><img width="24" height="24" alt="is" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/is.png"> Icelandic</a><a href="#" title="Igbo" class="nturl" data-gt-lang="ig"><img width="24" height="24" alt="ig" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ig.png"> Igbo</a><a href="#" title="Indonesian" class="nturl" data-gt-lang="id"><img width="24" height="24" alt="id" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/id.png"> Indonesian</a><a href="#" title="Irish" class="nturl" data-gt-lang="ga"><img width="24" height="24" alt="ga" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ga.png"> Irish</a><a href="#" title="Italian" class="nturl" data-gt-lang="it"><img width="24" height="24" alt="it" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/it.png"> Italian</a><a href="#" title="Japanese" class="nturl" data-gt-lang="ja"><img width="24" height="24" alt="ja" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ja.png"> Japanese</a><a href="#" title="Javanese" class="nturl" data-gt-lang="jw"><img width="24" height="24" alt="jw" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/jw.png"> Javanese</a><a href="#" title="Kannada" class="nturl" data-gt-lang="kn"><img width="24" height="24" alt="kn" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/kn.png"> Kannada</a><a href="#" title="Kazakh" class="nturl" data-gt-lang="kk"><img width="24" height="24" alt="kk" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/kk.png"> Kazakh</a><a href="#" title="Khmer" class="nturl" data-gt-lang="km"><img width="24" height="24" alt="km" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/km.png"> Khmer</a><a href="#" title="Korean" class="nturl" data-gt-lang="ko"><img width="24" height="24" alt="ko" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ko.png"> Korean</a><a href="#" title="Kurdish (Kurmanji)" class="nturl" data-gt-lang="ku"><img width="24" height="24" alt="ku" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ku.png"> Kurdish (Kurmanji)</a><a href="#" title="Kyrgyz" class="nturl" data-gt-lang="ky"><img width="24" height="24" alt="ky" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ky.png"> Kyrgyz</a><a href="#" title="Lao" class="nturl" data-gt-lang="lo"><img width="24" height="24" alt="lo" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/lo.png"> Lao</a><a href="#" title="Latin" class="nturl" data-gt-lang="la"><img width="24" height="24" alt="la" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/la.png"> Latin</a><a href="#" title="Latvian" class="nturl" data-gt-lang="lv"><img width="24" height="24" alt="lv" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/lv.png"> Latvian</a><a href="#" title="Lithuanian" class="nturl" data-gt-lang="lt"><img width="24" height="24" alt="lt" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/lt.png"> Lithuanian</a><a href="#" title="Luxembourgish" class="nturl" data-gt-lang="lb"><img width="24" height="24" alt="lb" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/lb.png"> Luxembourgish</a><a href="#" title="Macedonian" class="nturl" data-gt-lang="mk"><img width="24" height="24" alt="mk" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mk.png"> Macedonian</a><a href="#" title="Malagasy" class="nturl" data-gt-lang="mg"><img width="24" height="24" alt="mg" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mg.png"> Malagasy</a><a href="#" title="Malay" class="nturl" data-gt-lang="ms"><img width="24" height="24" alt="ms" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ms.png"> Malay</a><a href="#" title="Malayalam" class="nturl" data-gt-lang="ml"><img width="24" height="24" alt="ml" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/ml.png"> Malayalam</a><a href="#" title="Maltese" class="nturl" data-gt-lang="mt"><img width="24" height="24" alt="mt" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mt.png"> Maltese</a><a href="#" title="Maori" class="nturl" data-gt-lang="mi"><img width="24" height="24" alt="mi" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mi.png"> Maori</a><a href="#" title="Marathi" class="nturl" data-gt-lang="mr"><img width="24" height="24" alt="mr" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mr.png"> Marathi</a><a href="#" title="Mongolian" class="nturl" data-gt-lang="mn"><img width="24" height="24" alt="mn" data-gt-lazy-src="https://bullfxprime.online/n/wp-content/plugins/gtranslate/flags/24/mn.png"> Mongolian</a><a href="#" title="Myanmar (Burmese)" class="nturl" data-gt-lang="my"><img width="24" height="24" alt="my" 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	}
	// wrapper for elt, which removes the elt from the accessibility tree
	function eltP(tag, content, className, style) {
	var e = elt(tag, content, className, style);
	e.setAttribute("role", "presentation");
	return e
	}

	var range;
	if (document.createRange) { range = function(node, start, end, endNode) {
	var r = document.createRange();
	r.setEnd(endNode || node, end);
	r.setStart(node, start);
	return r
	}; }
	else { range = function(node, start, end) {
	var r = document.body.createTextRange();
	try { r.moveToElementText(node.parentNode); }
	catch(e) { return r }
	r.collapse(true);
	r.moveEnd("character", end);
	r.moveStart("character", start);
	return r
	}; }

	function contains(parent, child) {
	if (child.nodeType == 3) // Android browser always returns false when child is a textnode
		{ child = child.parentNode; }
	if (parent.contains)
		{ return parent.contains(child) }
	do {
		if (child.nodeType == 11) { child = child.host; }
		if (child == parent) { return true }
	} while (child = child.parentNode)
	}

	function activeElt(doc) {
	// IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
	// IE < 10 will throw when accessed while the page is loading or in an iframe.
	// IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
	var activeElement;
	try {
		activeElement = doc.activeElement;
	} catch(e) {
		activeElement = doc.body || null;
	}
	while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
		{ activeElement = activeElement.shadowRoot.activeElement; }
	return activeElement
	}

	function addClass(node, cls) {
	var current = node.className;
	if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
	}
	function joinClasses(a, b) {
	var as = a.split(" ");
	for (var i = 0; i < as.length; i++)
		{ if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
	return b
	}

	var selectInput = function(node) { node.select(); };
	if (ios) // Mobile Safari apparently has a bug where select() is broken.
	{ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
	else if (ie) // Suppress mysterious IE10 errors
	{ selectInput = function(node) { try { node.select(); } catch(_e) {} }; }

	function doc(cm) { return cm.display.wrapper.ownerDocument }

	function win(cm) { return doc(cm).defaultView }

	function bind(f) {
	var args = Array.prototype.slice.call(arguments, 1);
	return function(){return f.apply(null, args)}
	}

	function copyObj(obj, target, overwrite) {
	if (!target) { target = {}; }
	for (var prop in obj)
		{ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
		{ target[prop] = obj[prop]; } }
	return target
	}

	// Counts the column offset in a string, taking tabs into account.
	// Used mostly to find indentation.
	function countColumn(string, end, tabSize, startIndex, startValue) {
	if (end == null) {
		end = string.search(/[^\s\u00a0]/);
		if (end == -1) { end = string.length; }
	}
	for (var i = startIndex || 0, n = startValue || 0;;) {
		var nextTab = string.indexOf("\t", i);
		if (nextTab < 0 || nextTab >= end)
		{ return n + (end - i) }
		n += nextTab - i;
		n += tabSize - (n % tabSize);
		i = nextTab + 1;
	}
	}

	var Delayed = function() {
	this.id = null;
	this.f = null;
	this.time = 0;
	this.handler = bind(this.onTimeout, this);
	};
	Delayed.prototype.onTimeout = function (self) {
	self.id = 0;
	if (self.time <= +new Date) {
		self.f();
	} else {
		setTimeout(self.handler, self.time - +new Date);
	}
	};
	Delayed.prototype.set = function (ms, f) {
	this.f = f;
	var time = +new Date + ms;
	if (!this.id || time < this.time) {
		clearTimeout(this.id);
		this.id = setTimeout(this.handler, ms);
		this.time = time;
	}
	};

	function indexOf(array, elt) {
	for (var i = 0; i < array.length; ++i)
		{ if (array[i] == elt) { return i } }
	return -1
	}

	// Number of pixels added to scroller and sizer to hide scrollbar
	var scrollerGap = 50;

	// Returned or thrown by various protocols to signal 'I'm not
	// handling this'.
	var Pass = {toString: function(){return "CodeMirror.Pass"}};

	// Reused option objects for setSelection & friends
	var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};

	// The inverse of countColumn -- find the offset that corresponds to
	// a particular column.
	function findColumn(string, goal, tabSize) {
	for (var pos = 0, col = 0;;) {
		var nextTab = string.indexOf("\t", pos);
		if (nextTab == -1) { nextTab = string.length; }
		var skipped = nextTab - pos;
		if (nextTab == string.length || col + skipped >= goal)
		{ return pos + Math.min(skipped, goal - col) }
		col += nextTab - pos;
		col += tabSize - (col % tabSize);
		pos = nextTab + 1;
		if (col >= goal) { return pos }
	}
	}

	var spaceStrs = [""];
	function spaceStr(n) {
	while (spaceStrs.length <= n)
		{ spaceStrs.push(lst(spaceStrs) + " "); }
	return spaceStrs[n]
	}

	function lst(arr) { return arr[arr.length-1] }

	function map(array, f) {
	var out = [];
	for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
	return out
	}

	function insertSorted(array, value, score) {
	var pos = 0, priority = score(value);
	while (pos < array.length && score(array[pos]) <= priority) { pos++; }
	array.splice(pos, 0, value);
	}

	function nothing() {}

	function createObj(base, props) {
	var inst;
	if (Object.create) {
		inst = Object.create(base);
	} else {
		nothing.prototype = base;
		inst = new nothing();
	}
	if (props) { copyObj(props, inst); }
	return inst
	}

	var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
	function isWordCharBasic(ch) {
	return /\w/.test(ch) || ch > "\x80" &&
		(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
	}
	function isWordChar(ch, helper) {
	if (!helper) { return isWordCharBasic(ch) }
	if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
	return helper.test(ch)
	}

	function isEmpty(obj) {
	for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
	return true
	}

	// Extending unicode characters. A series of a non-extending char +
	// any number of extending chars is treated as a single unit as far
	// as editing and measuring is concerned. This is not fully correct,
	// since some scripts/fonts/browsers also treat other configurations
	// of code points as a group.
	var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
	function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }

	// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
	function skipExtendingChars(str, pos, dir) {
	while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
	return pos
	}

	// Returns the value from the range [`from`; `to`] that satisfies
	// `pred` and is closest to `from`. Assumes that at least `to`
	// satisfies `pred`. Supports `from` being greater than `to`.
	function findFirst(pred, from, to) {
	// At any point we are certain `to` satisfies `pred`, don't know
	// whether `from` does.
	var dir = from > to ? -1 : 1;
	for (;;) {
		if (from == to) { return from }
		var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
		if (mid == from) { return pred(mid) ? from : to }
		if (pred(mid)) { to = mid; }
		else { from = mid + dir; }
	}
	}

	// BIDI HELPERS

	function iterateBidiSections(order, from, to, f) {
	if (!order) { return f(from, to, "ltr", 0) }
	var found = false;
	for (var i = 0; i < order.length; ++i) {
		var part = order[i];
		if (part.from < to && part.to > from || from == to && part.to == from) {
		f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i);
		found = true;
		}
	}
	if (!found) { f(from, to, "ltr"); }
	}

	var bidiOther = null;
	function getBidiPartAt(order, ch, sticky) {
	var found;
	bidiOther = null;
	for (var i = 0; i < order.length; ++i) {
		var cur = order[i];
		if (cur.from < ch && cur.to > ch) { return i }
		if (cur.to == ch) {
		if (cur.from != cur.to && sticky == "before") { found = i; }
		else { bidiOther = i; }
		}
		if (cur.from == ch) {
		if (cur.from != cur.to && sticky != "before") { found = i; }
		else { bidiOther = i; }
		}
	}
	return found != null ? found : bidiOther
	}

	// Bidirectional ordering algorithm
	// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
	// that this (partially) implements.

	// One-char codes used for character types:
	// L (L):   Left-to-Right
	// R (R):   Right-to-Left
	// r (AL):  Right-to-Left Arabic
	// 1 (EN):  European Number
	// + (ES):  European Number Separator
	// % (ET):  European Number Terminator
	// n (AN):  Arabic Number
	// , (CS):  Common Number Separator
	// m (NSM): Non-Spacing Mark
	// b (BN):  Boundary Neutral
	// s (B):   Paragraph Separator
	// t (S):   Segment Separator
	// w (WS):  Whitespace
	// N (ON):  Other Neutrals

	// Returns null if characters are ordered as they appear
	// (left-to-right), or an array of sections ({from, to, level}
	// objects) in the order in which they occur visually.
	var bidiOrdering = (function() {
	// Character types for codepoints 0 to 0xff
	var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
	// Character types for codepoints 0x600 to 0x6f9
	var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
	function charType(code) {
		if (code <= 0xf7) { return lowTypes.charAt(code) }
		else if (0x590 <= code && code <= 0x5f4) { return "R" }
		else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
		else if (0x6ee <= code && code <= 0x8ac) { return "r" }
		else if (0x2000 <= code && code <= 0x200b) { return "w" }
		else if (code == 0x200c) { return "b" }
		else { return "L" }
	}

	var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
	var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;

	function BidiSpan(level, from, to) {
		this.level = level;
		this.from = from; this.to = to;
	}

	return function(str, direction) {
		var outerType = direction == "ltr" ? "L" : "R";

		if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
		var len = str.length, types = [];
		for (var i = 0; i < len; ++i)
		{ types.push(charType(str.charCodeAt(i))); }

		// W1. Examine each non-spacing mark (NSM) in the level run, and
		// change the type of the NSM to the type of the previous
		// character. If the NSM is at the start of the level run, it will
		// get the type of sor.
		for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
		var type = types[i$1];
		if (type == "m") { types[i$1] = prev; }
		else { prev = type; }
		}

		// W2. Search backwards from each instance of a European number
		// until the first strong type (R, L, AL, or sor) is found. If an
		// AL is found, change the type of the European number to Arabic
		// number.
		// W3. Change all ALs to R.
		for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
		var type$1 = types[i$2];
		if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
		else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
		}

		// W4. A single European separator between two European numbers
		// changes to a European number. A single common separator between
		// two numbers of the same type changes to that type.
		for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
		var type$2 = types[i$3];
		if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
		else if (type$2 == "," && prev$1 == types[i$3+1] &&
				(prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
		prev$1 = type$2;
		}

		// W5. A sequence of European terminators adjacent to European
		// numbers changes to all European numbers.
		// W6. Otherwise, separators and terminators change to Other
		// Neutral.
		for (var i$4 = 0; i$4 < len; ++i$4) {
		var type$3 = types[i$4];
		if (type$3 == ",") { types[i$4] = "N"; }
		else if (type$3 == "%") {
			var end = (void 0);
			for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
			var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
			for (var j = i$4; j < end; ++j) { types[j] = replace; }
			i$4 = end - 1;
		}
		}

		// W7. Search backwards from each instance of a European number
		// until the first strong type (R, L, or sor) is found. If an L is
		// found, then change the type of the European number to L.
		for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
		var type$4 = types[i$5];
		if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
		else if (isStrong.test(type$4)) { cur$1 = type$4; }
		}

		// N1. A sequence of neutrals takes the direction of the
		// surrounding strong text if the text on both sides has the same
		// direction. European and Arabic numbers act as if they were R in
		// terms of their influence on neutrals. Start-of-level-run (sor)
		// and end-of-level-run (eor) are used at level run boundaries.
		// N2. Any remaining neutrals take the embedding direction.
		for (var i$6 = 0; i$6 < len; ++i$6) {
		if (isNeutral.test(types[i$6])) {
			var end$1 = (void 0);
			for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
			var before = (i$6 ? types[i$6-1] : outerType) == "L";
			var after = (end$1 < len ? types[end$1] : outerType) == "L";
			var replace$1 = before == after ? (before ? "L" : "R") : outerType;
			for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
			i$6 = end$1 - 1;
		}
		}

		// Here we depart from the documented algorithm, in order to avoid
		// building up an actual levels array. Since there are only three
		// levels (0, 1, 2) in an implementation that doesn't take
		// explicit embedding into account, we can build up the order on
		// the fly, without following the level-based algorithm.
		var order = [], m;
		for (var i$7 = 0; i$7 < len;) {
		if (countsAsLeft.test(types[i$7])) {
			var start = i$7;
			for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
			order.push(new BidiSpan(0, start, i$7));
		} else {
			var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0;
			for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
			for (var j$2 = pos; j$2 < i$7;) {
			if (countsAsNum.test(types[j$2])) {
				if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }
				var nstart = j$2;
				for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
				order.splice(at, 0, new BidiSpan(2, nstart, j$2));
				at += isRTL;
				pos = j$2;
			} else { ++j$2; }
			}
			if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
		}
		}
		if (direction == "ltr") {
		if (order[0].level == 1 && (m = str.match(/^\s+/))) {
			order[0].from = m[0].length;
			order.unshift(new BidiSpan(0, 0, m[0].length));
		}
		if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
			lst(order).to -= m[0].length;
			order.push(new BidiSpan(0, len - m[0].length, len));
		}
		}

		return direction == "rtl" ? order.reverse() : order
	}
	})();

	// Get the bidi ordering for the given line (and cache it). Returns
	// false for lines that are fully left-to-right, and an array of
	// BidiSpan objects otherwise.
	function getOrder(line, direction) {
	var order = line.order;
	if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
	return order
	}

	// EVENT HANDLING

	// Lightweight event framework. on/off also work on DOM nodes,
	// registering native DOM handlers.

	var noHandlers = [];

	var on = function(emitter, type, f) {
	if (emitter.addEventListener) {
		emitter.addEventListener(type, f, false);
	} else if (emitter.attachEvent) {
		emitter.attachEvent("on" + type, f);
	} else {
		var map = emitter._handlers || (emitter._handlers = {});
		map[type] = (map[type] || noHandlers).concat(f);
	}
	};

	function getHandlers(emitter, type) {
	return emitter._handlers && emitter._handlers[type] || noHandlers
	}

	function off(emitter, type, f) {
	if (emitter.removeEventListener) {
		emitter.removeEventListener(type, f, false);
	} else if (emitter.detachEvent) {
		emitter.detachEvent("on" + type, f);
	} else {
		var map = emitter._handlers, arr = map && map[type];
		if (arr) {
		var index = indexOf(arr, f);
		if (index > -1)
			{ map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
		}
	}
	}

	function signal(emitter, type /*, values...*/) {
	var handlers = getHandlers(emitter, type);
	if (!handlers.length) { return }
	var args = Array.prototype.slice.call(arguments, 2);
	for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
	}

	// The DOM events that CodeMirror handles can be overridden by
	// registering a (non-DOM) handler on the editor for the event name,
	// and preventDefault-ing the event in that handler.
	function signalDOMEvent(cm, e, override) {
	if (typeof e == "string")
		{ e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
	signal(cm, override || e.type, cm, e);
	return e_defaultPrevented(e) || e.codemirrorIgnore
	}

	function signalCursorActivity(cm) {
	var arr = cm._handlers && cm._handlers.cursorActivity;
	if (!arr) { return }
	var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
	for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
		{ set.push(arr[i]); } }
	}

	function hasHandler(emitter, type) {
	return getHandlers(emitter, type).length > 0
	}

	// Add on and off methods to a constructor's prototype, to make
	// registering events on such objects more convenient.
	function eventMixin(ctor) {
	ctor.prototype.on = function(type, f) {on(this, type, f);};
	ctor.prototype.off = function(type, f) {off(this, type, f);};
	}

	// Due to the fact that we still support jurassic IE versions, some
	// compatibility wrappers are needed.

	function e_preventDefault(e) {
	if (e.preventDefault) { e.preventDefault(); }
	else { e.returnValue = false; }
	}
	function e_stopPropagation(e) {
	if (e.stopPropagation) { e.stopPropagation(); }
	else { e.cancelBubble = true; }
	}
	function e_defaultPrevented(e) {
	return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
	}
	function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}

	function e_target(e) {return e.target || e.srcElement}
	function e_button(e) {
	var b = e.which;
	if (b == null) {
		if (e.button & 1) { b = 1; }
		else if (e.button & 2) { b = 3; }
		else if (e.button & 4) { b = 2; }
	}
	if (mac && e.ctrlKey && b == 1) { b = 3; }
	return b
	}

	// Detect drag-and-drop
	var dragAndDrop = function() {
	// There is *some* kind of drag-and-drop support in IE6-8, but I
	// couldn't get it to work yet.
	if (ie && ie_version < 9) { return false }
	var div = elt('div');
	return "draggable" in div || "dragDrop" in div
	}();

	var zwspSupported;
	function zeroWidthElement(measure) {
	if (zwspSupported == null) {
		var test = elt("span", "\u200b");
		removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
		if (measure.firstChild.offsetHeight != 0)
		{ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
	}
	var node = zwspSupported ? elt("span", "\u200b") :
		elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
	node.setAttribute("cm-text", "");
	return node
	}

	// Feature-detect IE's crummy client rect reporting for bidi text
	var badBidiRects;
	function hasBadBidiRects(measure) {
	if (badBidiRects != null) { return badBidiRects }
	var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
	var r0 = range(txt, 0, 1).getBoundingClientRect();
	var r1 = range(txt, 1, 2).getBoundingClientRect();
	removeChildren(measure);
	if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
	return badBidiRects = (r1.right - r0.right < 3)
	}

	// See if "".split is the broken IE version, if so, provide an
	// alternative way to split lines.
	var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
	var pos = 0, result = [], l = string.length;
	while (pos <= l) {
		var nl = string.indexOf("\n", pos);
		if (nl == -1) { nl = string.length; }
		var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
		var rt = line.indexOf("\r");
		if (rt != -1) {
		result.push(line.slice(0, rt));
		pos += rt + 1;
		} else {
		result.push(line);
		pos = nl + 1;
		}
	}
	return result
	} : function (string) { return string.split(/\r\n?|\n/); };

	var hasSelection = window.getSelection ? function (te) {
	try { return te.selectionStart != te.selectionEnd }
	catch(e) { return false }
	} : function (te) {
	var range;
	try {range = te.ownerDocument.selection.createRange();}
	catch(e) {}
	if (!range || range.parentElement() != te) { return false }
	return range.compareEndPoints("StartToEnd", range) != 0
	};

	var hasCopyEvent = (function () {
	var e = elt("div");
	if ("oncopy" in e) { return true }
	e.setAttribute("oncopy", "return;");
	return typeof e.oncopy == "function"
	})();

	var badZoomedRects = null;
	function hasBadZoomedRects(measure) {
	if (badZoomedRects != null) { return badZoomedRects }
	var node = removeChildrenAndAdd(measure, elt("span", "x"));
	var normal = node.getBoundingClientRect();
	var fromRange = range(node, 0, 1).getBoundingClientRect();
	return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
	}

	// Known modes, by name and by MIME
	var modes = {}, mimeModes = {};

	// Extra arguments are stored as the mode's dependencies, which is
	// used by (legacy) mechanisms like loadmode.js to automatically
	// load a mode. (Preferred mechanism is the require/define calls.)
	function defineMode(name, mode) {
	if (arguments.length > 2)
		{ mode.dependencies = Array.prototype.slice.call(arguments, 2); }
	modes[name] = mode;
	}

	function defineMIME(mime, spec) {
	mimeModes[mime] = spec;
	}

	// Given a MIME type, a {name, ...options} config object, or a name
	// string, return a mode config object.
	function resolveMode(spec) {
	if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
		spec = mimeModes[spec];
	} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
		var found = mimeModes[spec.name];
		if (typeof found == "string") { found = {name: found}; }
		spec = createObj(found, spec);
		spec.name = found.name;
	} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
		return resolveMode("application/xml")
	} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
		return resolveMode("application/json")
	}
	if (typeof spec == "string") { return {name: spec} }
	else { return spec || {name: "null"} }
	}

	// Given a mode spec (anything that resolveMode accepts), find and
	// initialize an actual mode object.
	function getMode(options, spec) {
	spec = resolveMode(spec);
	var mfactory = modes[spec.name];
	if (!mfactory) { return getMode(options, "text/plain") }
	var modeObj = mfactory(options, spec);
	if (modeExtensions.hasOwnProperty(spec.name)) {
		var exts = modeExtensions[spec.name];
		for (var prop in exts) {
		if (!exts.hasOwnProperty(prop)) { continue }
		if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
		modeObj[prop] = exts[prop];
		}
	}
	modeObj.name = spec.name;
	if (spec.helperType) { modeObj.helperType = spec.helperType; }
	if (spec.modeProps) { for (var prop$1 in spec.modeProps)
		{ modeObj[prop$1] = spec.modeProps[prop$1]; } }

	return modeObj
	}

	// This can be used to attach properties to mode objects from
	// outside the actual mode definition.
	var modeExtensions = {};
	function extendMode(mode, properties) {
	var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
	copyObj(properties, exts);
	}

	function copyState(mode, state) {
	if (state === true) { return state }
	if (mode.copyState) { return mode.copyState(state) }
	var nstate = {};
	for (var n in state) {
		var val = state[n];
		if (val instanceof Array) { val = val.concat([]); }
		nstate[n] = val;
	}
	return nstate
	}

	// Given a mode and a state (for that mode), find the inner mode and
	// state at the position that the state refers to.
	function innerMode(mode, state) {
	var info;
	while (mode.innerMode) {
		info = mode.innerMode(state);
		if (!info || info.mode == mode) { break }
		state = info.state;
		mode = info.mode;
	}
	return info || {mode: mode, state: state}
	}

	function startState(mode, a1, a2) {
	return mode.startState ? mode.startState(a1, a2) : true
	}

	// STRING STREAM

	// Fed to the mode parsers, provides helper functions to make
	// parsers more succinct.

	var StringStream = function(string, tabSize, lineOracle) {
	this.pos = this.start = 0;
	this.string = string;
	this.tabSize = tabSize || 8;
	this.lastColumnPos = this.lastColumnValue = 0;
	this.lineStart = 0;
	this.lineOracle = lineOracle;
	};

	StringStream.prototype.eol = function () {return this.pos >= this.string.length};
	StringStream.prototype.sol = function () {return this.pos == this.lineStart};
	StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
	StringStream.prototype.next = function () {
	if (this.pos < this.string.length)
		{ return this.string.charAt(this.pos++) }
	};
	StringStream.prototype.eat = function (match) {
	var ch = this.string.charAt(this.pos);
	var ok;
	if (typeof match == "string") { ok = ch == match; }
	else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
	if (ok) {++this.pos; return ch}
	};
	StringStream.prototype.eatWhile = function (match) {
	var start = this.pos;
	while (this.eat(match)){}
	return this.pos > start
	};
	StringStream.prototype.eatSpace = function () {
	var start = this.pos;
	while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
	return this.pos > start
	};
	StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
	StringStream.prototype.skipTo = function (ch) {
	var found = this.string.indexOf(ch, this.pos);
	if (found > -1) {this.pos = found; return true}
	};
	StringStream.prototype.backUp = function (n) {this.pos -= n;};
	StringStream.prototype.column = function () {
	if (this.lastColumnPos < this.start) {
		this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
		this.lastColumnPos = this.start;
	}
	return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
	};
	StringStream.prototype.indentation = function () {
	return countColumn(this.string, null, this.tabSize) -
		(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
	};
	StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
	if (typeof pattern == "string") {
		var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
		var substr = this.string.substr(this.pos, pattern.length);
		if (cased(substr) == cased(pattern)) {
		if (consume !== false) { this.pos += pattern.length; }
		return true
		}
	} else {
		var match = this.string.slice(this.pos).match(pattern);
		if (match && match.index > 0) { return null }
		if (match && consume !== false) { this.pos += match[0].length; }
		return match
	}
	};
	StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
	StringStream.prototype.hideFirstChars = function (n, inner) {
	this.lineStart += n;
	try { return inner() }
	finally { this.lineStart -= n; }
	};
	StringStream.prototype.lookAhead = function (n) {
	var oracle = this.lineOracle;
	return oracle && oracle.lookAhead(n)
	};
	StringStream.prototype.baseToken = function () {
	var oracle = this.lineOracle;
	return oracle && oracle.baseToken(this.pos)
	};

	// Find the line object corresponding to the given line number.
	function getLine(doc, n) {
	n -= doc.first;
	if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
	var chunk = doc;
	while (!chunk.lines) {
		for (var i = 0;; ++i) {
		var child = chunk.children[i], sz = child.chunkSize();
		if (n < sz) { chunk = child; break }
		n -= sz;
		}
	}
	return chunk.lines[n]
	}

	// Get the part of a document between two positions, as an array of
	// strings.
	function getBetween(doc, start, end) {
	var out = [], n = start.line;
	doc.iter(start.line, end.line + 1, function (line) {
		var text = line.text;
		if (n == end.line) { text = text.slice(0, end.ch); }
		if (n == start.line) { text = text.slice(start.ch); }
		out.push(text);
		++n;
	});
	return out
	}
	// Get the lines between from and to, as array of strings.
	function getLines(doc, from, to) {
	var out = [];
	doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
	return out
	}

	// Update the height of a line, propagating the height change
	// upwards to parent nodes.
	function updateLineHeight(line, height) {
	var diff = height - line.height;
	if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
	}

	// Given a line object, find its line number by walking up through
	// its parent links.
	function lineNo(line) {
	if (line.parent == null) { return null }
	var cur = line.parent, no = indexOf(cur.lines, line);
	for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
		for (var i = 0;; ++i) {
		if (chunk.children[i] == cur) { break }
		no += chunk.children[i].chunkSize();
		}
	}
	return no + cur.first
	}

	// Find the line at the given vertical position, using the height
	// information in the document tree.
	function lineAtHeight(chunk, h) {
	var n = chunk.first;
	outer: do {
		for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
		var child = chunk.children[i$1], ch = child.height;
		if (h < ch) { chunk = child; continue outer }
		h -= ch;
		n += child.chunkSize();
		}
		return n
	} while (!chunk.lines)
	var i = 0;
	for (; i < chunk.lines.length; ++i) {
		var line = chunk.lines[i], lh = line.height;
		if (h < lh) { break }
		h -= lh;
	}
	return n + i
	}

	function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}

	function lineNumberFor(options, i) {
	return String(options.lineNumberFormatter(i + options.firstLineNumber))
	}

	// A Pos instance represents a position within the text.
	function Pos(line, ch, sticky) {
	if ( sticky === void 0 ) sticky = null;

	if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
	this.line = line;
	this.ch = ch;
	this.sticky = sticky;
	}

	// Compare two positions, return 0 if they are the same, a negative
	// number when a is less, and a positive number otherwise.
	function cmp(a, b) { return a.line - b.line || a.ch - b.ch }

	function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }

	function copyPos(x) {return Pos(x.line, x.ch)}
	function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
	function minPos(a, b) { return cmp(a, b) < 0 ? a : b }

	// Most of the external API clips given positions to make sure they
	// actually exist within the document.
	function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
	function clipPos(doc, pos) {
	if (pos.line < doc.first) { return Pos(doc.first, 0) }
	var last = doc.first + doc.size - 1;
	if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
	return clipToLen(pos, getLine(doc, pos.line).text.length)
	}
	function clipToLen(pos, linelen) {
	var ch = pos.ch;
	if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
	else if (ch < 0) { return Pos(pos.line, 0) }
	else { return pos }
	}
	function clipPosArray(doc, array) {
	var out = [];
	for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
	return out
	}

	var SavedContext = function(state, lookAhead) {
	this.state = state;
	this.lookAhead = lookAhead;
	};

	var Context = function(doc, state, line, lookAhead) {
	this.state = state;
	this.doc = doc;
	this.line = line;
	this.maxLookAhead = lookAhead || 0;
	this.baseTokens = null;
	this.baseTokenPos = 1;
	};

	Context.prototype.lookAhead = function (n) {
	var line = this.doc.getLine(this.line + n);
	if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
	return line
	};

	Context.prototype.baseToken = function (n) {
	if (!this.baseTokens) { return null }
	while (this.baseTokens[this.baseTokenPos] <= n)
		{ this.baseTokenPos += 2; }
	var type = this.baseTokens[this.baseTokenPos + 1];
	return {type: type && type.replace(/( |^)overlay .*/, ""),
			size: this.baseTokens[this.baseTokenPos] - n}
	};

	Context.prototype.nextLine = function () {
	this.line++;
	if (this.maxLookAhead > 0) { this.maxLookAhead--; }
	};

	Context.fromSaved = function (doc, saved, line) {
	if (saved instanceof SavedContext)
		{ return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
	else
		{ return new Context(doc, copyState(doc.mode, saved), line) }
	};

	Context.prototype.save = function (copy) {
	var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
	return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
	};


	// Compute a style array (an array starting with a mode generation
	// -- for invalidation -- followed by pairs of end positions and
	// style strings), which is used to highlight the tokens on the
	// line.
	function highlightLine(cm, line, context, forceToEnd) {
	// A styles array always starts with a number identifying the
	// mode/overlays that it is based on (for easy invalidation).
	var st = [cm.state.modeGen], lineClasses = {};
	// Compute the base array of styles
	runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
			lineClasses, forceToEnd);
	var state = context.state;

	// Run overlays, adjust style array.
	var loop = function ( o ) {
		context.baseTokens = st;
		var overlay = cm.state.overlays[o], i = 1, at = 0;
		context.state = true;
		runMode(cm, line.text, overlay.mode, context, function (end, style) {
		var start = i;
		// Ensure there's a token end at the current position, and that i points at it
		while (at < end) {
			var i_end = st[i];
			if (i_end > end)
			{ st.splice(i, 1, end, st[i+1], i_end); }
			i += 2;
			at = Math.min(end, i_end);
		}
		if (!style) { return }
		if (overlay.opaque) {
			st.splice(start, i - start, end, "overlay " + style);
			i = start + 2;
		} else {
			for (; start < i; start += 2) {
			var cur = st[start+1];
			st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
			}
		}
		}, lineClasses);
		context.state = state;
		context.baseTokens = null;
		context.baseTokenPos = 1;
	};

	for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );

	return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
	}

	function getLineStyles(cm, line, updateFrontier) {
	if (!line.styles || line.styles[0] != cm.state.modeGen) {
		var context = getContextBefore(cm, lineNo(line));
		var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
		var result = highlightLine(cm, line, context);
		if (resetState) { context.state = resetState; }
		line.stateAfter = context.save(!resetState);
		line.styles = result.styles;
		if (result.classes) { line.styleClasses = result.classes; }
		else if (line.styleClasses) { line.styleClasses = null; }
		if (updateFrontier === cm.doc.highlightFrontier)
		{ cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
	}
	return line.styles
	}

	function getContextBefore(cm, n, precise) {
	var doc = cm.doc, display = cm.display;
	if (!doc.mode.startState) { return new Context(doc, true, n) }
	var start = findStartLine(cm, n, precise);
	var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
	var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);

	doc.iter(start, n, function (line) {
		processLine(cm, line.text, context);
		var pos = context.line;
		line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
		context.nextLine();
	});
	if (precise) { doc.modeFrontier = context.line; }
	return context
	}

	// Lightweight form of highlight -- proceed over this line and
	// update state, but don't save a style array. Used for lines that
	// aren't currently visible.
	function processLine(cm, text, context, startAt) {
	var mode = cm.doc.mode;
	var stream = new StringStream(text, cm.options.tabSize, context);
	stream.start = stream.pos = startAt || 0;
	if (text == "") { callBlankLine(mode, context.state); }
	while (!stream.eol()) {
		readToken(mode, stream, context.state);
		stream.start = stream.pos;
	}
	}

	function callBlankLine(mode, state) {
	if (mode.blankLine) { return mode.blankLine(state) }
	if (!mode.innerMode) { return }
	var inner = innerMode(mode, state);
	if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
	}

	function readToken(mode, stream, state, inner) {
	for (var i = 0; i < 10; i++) {
		if (inner) { inner[0] = innerMode(mode, state).mode; }
		var style = mode.token(stream, state);
		if (stream.pos > stream.start) { return style }
	}
	throw new Error("Mode " + mode.name + " failed to advance stream.")
	}

	var Token = function(stream, type, state) {
	this.start = stream.start; this.end = stream.pos;
	this.string = stream.current();
	this.type = type || null;
	this.state = state;
	};

	// Utility for getTokenAt and getLineTokens
	function takeToken(cm, pos, precise, asArray) {
	var doc = cm.doc, mode = doc.mode, style;
	pos = clipPos(doc, pos);
	var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
	var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
	if (asArray) { tokens = []; }
	while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
		stream.start = stream.pos;
		style = readToken(mode, stream, context.state);
		if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
	}
	return asArray ? tokens : new Token(stream, style, context.state)
	}

	function extractLineClasses(type, output) {
	if (type) { for (;;) {
		var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
		if (!lineClass) { break }
		type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
		var prop = lineClass[1] ? "bgClass" : "textClass";
		if (output[prop] == null)
		{ output[prop] = lineClass[2]; }
		else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop]))
		{ output[prop] += " " + lineClass[2]; }
	} }
	return type
	}

	// Run the given mode's parser over a line, calling f for each token.
	function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
	var flattenSpans = mode.flattenSpans;
	if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
	var curStart = 0, curStyle = null;
	var stream = new StringStream(text, cm.options.tabSize, context), style;
	var inner = cm.options.addModeClass && [null];
	if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
	while (!stream.eol()) {
		if (stream.pos > cm.options.maxHighlightLength) {
		flattenSpans = false;
		if (forceToEnd) { processLine(cm, text, context, stream.pos); }
		stream.pos = text.length;
		style = null;
		} else {
		style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
		}
		if (inner) {
		var mName = inner[0].name;
		if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
		}
		if (!flattenSpans || curStyle != style) {
		while (curStart < stream.start) {
			curStart = Math.min(stream.start, curStart + 5000);
			f(curStart, curStyle);
		}
		curStyle = style;
		}
		stream.start = stream.pos;
	}
	while (curStart < stream.pos) {
		// Webkit seems to refuse to render text nodes longer than 57444
		// characters, and returns inaccurate measurements in nodes
		// starting around 5000 chars.
		var pos = Math.min(stream.pos, curStart + 5000);
		f(pos, curStyle);
		curStart = pos;
	}
	}

	// Finds the line to start with when starting a parse. Tries to
	// find a line with a stateAfter, so that it can start with a
	// valid state. If that fails, it returns the line with the
	// smallest indentation, which tends to need the least context to
	// parse correctly.
	function findStartLine(cm, n, precise) {
	var minindent, minline, doc = cm.doc;
	var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
	for (var search = n; search > lim; --search) {
		if (search <= doc.first) { return doc.first }
		var line = getLine(doc, search - 1), after = line.stateAfter;
		if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
		{ return search }
		var indented = countColumn(line.text, null, cm.options.tabSize);
		if (minline == null || minindent > indented) {
		minline = search - 1;
		minindent = indented;
		}
	}
	return minline
	}

	function retreatFrontier(doc, n) {
	doc.modeFrontier = Math.min(doc.modeFrontier, n);
	if (doc.highlightFrontier < n - 10) { return }
	var start = doc.first;
	for (var line = n - 1; line > start; line--) {
		var saved = getLine(doc, line).stateAfter;
		// change is on 3
		// state on line 1 looked ahead 2 -- so saw 3
		// test 1 + 2 < 3 should cover this
		if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
		start = line + 1;
		break
		}
	}
	doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
	}

	// Optimize some code when these features are not used.
	var sawReadOnlySpans = false, sawCollapsedSpans = false;

	function seeReadOnlySpans() {
	sawReadOnlySpans = true;
	}

	function seeCollapsedSpans() {
	sawCollapsedSpans = true;
	}

	// TEXTMARKER SPANS

	function MarkedSpan(marker, from, to) {
	this.marker = marker;
	this.from = from; this.to = to;
	}

	// Search an array of spans for a span matching the given marker.
	function getMarkedSpanFor(spans, marker) {
	if (spans) { for (var i = 0; i < spans.length; ++i) {
		var span = spans[i];
		if (span.marker == marker) { return span }
	} }
	}

	// Remove a span from an array, returning undefined if no spans are
	// left (we don't store arrays for lines without spans).
	function removeMarkedSpan(spans, span) {
	var r;
	for (var i = 0; i < spans.length; ++i)
		{ if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
	return r
	}

	// Add a span to a line.
	function addMarkedSpan(line, span, op) {
	var inThisOp = op && window.WeakSet && (op.markedSpans || (op.markedSpans = new WeakSet));
	if (inThisOp && line.markedSpans && inThisOp.has(line.markedSpans)) {
		line.markedSpans.push(span);
	} else {
		line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
		if (inThisOp) { inThisOp.add(line.markedSpans); }
	}
	span.marker.attachLine(line);
	}

	// Used for the algorithm that adjusts markers for a change in the
	// document. These functions cut an array of spans at a given
	// character position, returning an array of remaining chunks (or
	// undefined if nothing remains).
	function markedSpansBefore(old, startCh, isInsert) {
	var nw;
	if (old) { for (var i = 0; i < old.length; ++i) {
		var span = old[i], marker = span.marker;
		var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
		if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
		var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
		;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
		}
	} }
	return nw
	}
	function markedSpansAfter(old, endCh, isInsert) {
	var nw;
	if (old) { for (var i = 0; i < old.length; ++i) {
		var span = old[i], marker = span.marker;
		var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
		if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
		var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
		;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
												span.to == null ? null : span.to - endCh));
		}
	} }
	return nw
	}

	// Given a change object, compute the new set of marker spans that
	// cover the line in which the change took place. Removes spans
	// entirely within the change, reconnects spans belonging to the
	// same marker that appear on both sides of the change, and cuts off
	// spans partially within the change. Returns an array of span
	// arrays with one element for each line in (after) the change.
	function stretchSpansOverChange(doc, change) {
	if (change.full) { return null }
	var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
	var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
	if (!oldFirst && !oldLast) { return null }

	var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
	// Get the spans that 'stick out' on both sides
	var first = markedSpansBefore(oldFirst, startCh, isInsert);
	var last = markedSpansAfter(oldLast, endCh, isInsert);

	// Next, merge those two ends
	var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
	if (first) {
		// Fix up .to properties of first
		for (var i = 0; i < first.length; ++i) {
		var span = first[i];
		if (span.to == null) {
			var found = getMarkedSpanFor(last, span.marker);
			if (!found) { span.to = startCh; }
			else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
		}
		}
	}
	if (last) {
		// Fix up .from in last (or move them into first in case of sameLine)
		for (var i$1 = 0; i$1 < last.length; ++i$1) {
		var span$1 = last[i$1];
		if (span$1.to != null) { span$1.to += offset; }
		if (span$1.from == null) {
			var found$1 = getMarkedSpanFor(first, span$1.marker);
			if (!found$1) {
			span$1.from = offset;
			if (sameLine) { (first || (first = [])).push(span$1); }
			}
		} else {
			span$1.from += offset;
			if (sameLine) { (first || (first = [])).push(span$1); }
		}
		}
	}
	// Make sure we didn't create any zero-length spans
	if (first) { first = clearEmptySpans(first); }
	if (last && last != first) { last = clearEmptySpans(last); }

	var newMarkers = [first];
	if (!sameLine) {
		// Fill gap with whole-line-spans
		var gap = change.text.length - 2, gapMarkers;
		if (gap > 0 && first)
		{ for (var i$2 = 0; i$2 < first.length; ++i$2)
			{ if (first[i$2].to == null)
			{ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
		for (var i$3 = 0; i$3 < gap; ++i$3)
		{ newMarkers.push(gapMarkers); }
		newMarkers.push(last);
	}
	return newMarkers
	}

	// Remove spans that are empty and don't have a clearWhenEmpty
	// option of false.
	function clearEmptySpans(spans) {
	for (var i = 0; i < spans.length; ++i) {
		var span = spans[i];
		if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
		{ spans.splice(i--, 1); }
	}
	if (!spans.length) { return null }
	return spans
	}

	// Used to 'clip' out readOnly ranges when making a change.
	function removeReadOnlyRanges(doc, from, to) {
	var markers = null;
	doc.iter(from.line, to.line + 1, function (line) {
		if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
		var mark = line.markedSpans[i].marker;
		if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
			{ (markers || (markers = [])).push(mark); }
		} }
	});
	if (!markers) { return null }
	var parts = [{from: from, to: to}];
	for (var i = 0; i < markers.length; ++i) {
		var mk = markers[i], m = mk.find(0);
		for (var j = 0; j < parts.length; ++j) {
		var p = parts[j];
		if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
		var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
		if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
			{ newParts.push({from: p.from, to: m.from}); }
		if (dto > 0 || !mk.inclusiveRight && !dto)
			{ newParts.push({from: m.to, to: p.to}); }
		parts.splice.apply(parts, newParts);
		j += newParts.length - 3;
		}
	}
	return parts
	}

	// Connect or disconnect spans from a line.
	function detachMarkedSpans(line) {
	var spans = line.markedSpans;
	if (!spans) { return }
	for (var i = 0; i < spans.length; ++i)
		{ spans[i].marker.detachLine(line); }
	line.markedSpans = null;
	}
	function attachMarkedSpans(line, spans) {
	if (!spans) { return }
	for (var i = 0; i < spans.length; ++i)
		{ spans[i].marker.attachLine(line); }
	line.markedSpans = spans;
	}

	// Helpers used when computing which overlapping collapsed span
	// counts as the larger one.
	function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
	function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }

	// Returns a number indicating which of two overlapping collapsed
	// spans is larger (and thus includes the other). Falls back to
	// comparing ids when the spans cover exactly the same range.
	function compareCollapsedMarkers(a, b) {
	var lenDiff = a.lines.length - b.lines.length;
	if (lenDiff != 0) { return lenDiff }
	var aPos = a.find(), bPos = b.find();
	var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
	if (fromCmp) { return -fromCmp }
	var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
	if (toCmp) { return toCmp }
	return b.id - a.id
	}

	// Find out whether a line ends or starts in a collapsed span. If
	// so, return the marker for that span.
	function collapsedSpanAtSide(line, start) {
	var sps = sawCollapsedSpans && line.markedSpans, found;
	if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
		sp = sps[i];
		if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
			(!found || compareCollapsedMarkers(found, sp.marker) < 0))
		{ found = sp.marker; }
	} }
	return found
	}
	function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
	function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }

	function collapsedSpanAround(line, ch) {
	var sps = sawCollapsedSpans && line.markedSpans, found;
	if (sps) { for (var i = 0; i < sps.length; ++i) {
		var sp = sps[i];
		if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
			(!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }
	} }
	return found
	}

	// Test whether there exists a collapsed span that partially
	// overlaps (covers the start or end, but not both) of a new span.
	// Such overlap is not allowed.
	function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
	var line = getLine(doc, lineNo);
	var sps = sawCollapsedSpans && line.markedSpans;
	if (sps) { for (var i = 0; i < sps.length; ++i) {
		var sp = sps[i];
		if (!sp.marker.collapsed) { continue }
		var found = sp.marker.find(0);
		var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
		var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
		if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
		if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
			fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
		{ return true }
	} }
	}

	// A visual line is a line as drawn on the screen. Folding, for
	// example, can cause multiple logical lines to appear on the same
	// visual line. This finds the start of the visual line that the
	// given line is part of (usually that is the line itself).
	function visualLine(line) {
	var merged;
	while (merged = collapsedSpanAtStart(line))
		{ line = merged.find(-1, true).line; }
	return line
	}

	function visualLineEnd(line) {
	var merged;
	while (merged = collapsedSpanAtEnd(line))
		{ line = merged.find(1, true).line; }
	return line
	}

	// Returns an array of logical lines that continue the visual line
	// started by the argument, or undefined if there are no such lines.
	function visualLineContinued(line) {
	var merged, lines;
	while (merged = collapsedSpanAtEnd(line)) {
		line = merged.find(1, true).line
		;(lines || (lines = [])).push(line);
	}
	return lines
	}

	// Get the line number of the start of the visual line that the
	// given line number is part of.
	function visualLineNo(doc, lineN) {
	var line = getLine(doc, lineN), vis = visualLine(line);
	if (line == vis) { return lineN }
	return lineNo(vis)
	}

	// Get the line number of the start of the next visual line after
	// the given line.
	function visualLineEndNo(doc, lineN) {
	if (lineN > doc.lastLine()) { return lineN }
	var line = getLine(doc, lineN), merged;
	if (!lineIsHidden(doc, line)) { return lineN }
	while (merged = collapsedSpanAtEnd(line))
		{ line = merged.find(1, true).line; }
	return lineNo(line) + 1
	}

	// Compute whether a line is hidden. Lines count as hidden when they
	// are part of a visual line that starts with another line, or when
	// they are entirely covered by collapsed, non-widget span.
	function lineIsHidden(doc, line) {
	var sps = sawCollapsedSpans && line.markedSpans;
	if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
		sp = sps[i];
		if (!sp.marker.collapsed) { continue }
		if (sp.from == null) { return true }
		if (sp.marker.widgetNode) { continue }
		if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
		{ return true }
	} }
	}
	function lineIsHiddenInner(doc, line, span) {
	if (span.to == null) {
		var end = span.marker.find(1, true);
		return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
	}
	if (span.marker.inclusiveRight && span.to == line.text.length)
		{ return true }
	for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
		sp = line.markedSpans[i];
		if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
			(sp.to == null || sp.to != span.from) &&
			(sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
			lineIsHiddenInner(doc, line, sp)) { return true }
	}
	}

	// Find the height above the given line.
	function heightAtLine(lineObj) {
	lineObj = visualLine(lineObj);

	var h = 0, chunk = lineObj.parent;
	for (var i = 0; i < chunk.lines.length; ++i) {
		var line = chunk.lines[i];
		if (line == lineObj) { break }
		else { h += line.height; }
	}
	for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
		for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
		var cur = p.children[i$1];
		if (cur == chunk) { break }
		else { h += cur.height; }
		}
	}
	return h
	}

	// Compute the character length of a line, taking into account
	// collapsed ranges (see markText) that might hide parts, and join
	// other lines onto it.
	function lineLength(line) {
	if (line.height == 0) { return 0 }
	var len = line.text.length, merged, cur = line;
	while (merged = collapsedSpanAtStart(cur)) {
		var found = merged.find(0, true);
		cur = found.from.line;
		len += found.from.ch - found.to.ch;
	}
	cur = line;
	while (merged = collapsedSpanAtEnd(cur)) {
		var found$1 = merged.find(0, true);
		len -= cur.text.length - found$1.from.ch;
		cur = found$1.to.line;
		len += cur.text.length - found$1.to.ch;
	}
	return len
	}

	// Find the longest line in the document.
	function findMaxLine(cm) {
	var d = cm.display, doc = cm.doc;
	d.maxLine = getLine(doc, doc.first);
	d.maxLineLength = lineLength(d.maxLine);
	d.maxLineChanged = true;
	doc.iter(function (line) {
		var len = lineLength(line);
		if (len > d.maxLineLength) {
		d.maxLineLength = len;
		d.maxLine = line;
		}
	});
	}

	// LINE DATA STRUCTURE

	// Line objects. These hold state related to a line, including
	// highlighting info (the styles array).
	var Line = function(text, markedSpans, estimateHeight) {
	this.text = text;
	attachMarkedSpans(this, markedSpans);
	this.height = estimateHeight ? estimateHeight(this) : 1;
	};

	Line.prototype.lineNo = function () { return lineNo(this) };
	eventMixin(Line);

	// Change the content (text, markers) of a line. Automatically
	// invalidates cached information and tries to re-estimate the
	// line's height.
	function updateLine(line, text, markedSpans, estimateHeight) {
	line.text = text;
	if (line.stateAfter) { line.stateAfter = null; }
	if (line.styles) { line.styles = null; }
	if (line.order != null) { line.order = null; }
	detachMarkedSpans(line);
	attachMarkedSpans(line, markedSpans);
	var estHeight = estimateHeight ? estimateHeight(line) : 1;
	if (estHeight != line.height) { updateLineHeight(line, estHeight); }
	}

	// Detach a line from the document tree and its markers.
	function cleanUpLine(line) {
	line.parent = null;
	detachMarkedSpans(line);
	}

	// Convert a style as returned by a mode (either null, or a string
	// containing one or more styles) to a CSS style. This is cached,
	// and also looks for line-wide styles.
	var styleToClassCache = {}, styleToClassCacheWithMode = {};
	function interpretTokenStyle(style, options) {
	if (!style || /^\s*$/.test(style)) { return null }
	var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
	return cache[style] ||
		(cache[style] = style.replace(/\S+/g, "cm-$&"))
	}

	// Render the DOM representation of the text of a line. Also builds
	// up a 'line map', which points at the DOM nodes that represent
	// specific stretches of text, and is used by the measuring code.
	// The returned object contains the DOM node, this map, and
	// information about line-wide styles that were set by the mode.
	function buildLineContent(cm, lineView) {
	// The padding-right forces the element to have a 'border', which
	// is needed on Webkit to be able to get line-level bounding
	// rectangles for it (in measureChar).
	var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
	var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
					col: 0, pos: 0, cm: cm,
					trailingSpace: false,
					splitSpaces: cm.getOption("lineWrapping")};
	lineView.measure = {};

	// Iterate over the logical lines that make up this visual line.
	for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
		var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
		builder.pos = 0;
		builder.addToken = buildToken;
		// Optionally wire in some hacks into the token-rendering
		// algorithm, to deal with browser quirks.
		if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
		{ builder.addToken = buildTokenBadBidi(builder.addToken, order); }
		builder.map = [];
		var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
		insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
		if (line.styleClasses) {
		if (line.styleClasses.bgClass)
			{ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
		if (line.styleClasses.textClass)
			{ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
		}

		// Ensure at least a single node is present, for measuring.
		if (builder.map.length == 0)
		{ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }

		// Store the map and a cache object for the current logical line
		if (i == 0) {
		lineView.measure.map = builder.map;
		lineView.measure.cache = {};
		} else {
	(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
		;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
		}
	}

	// See issue #2901
	if (webkit) {
		var last = builder.content.lastChild;
		if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
		{ builder.content.className = "cm-tab-wrap-hack"; }
	}

	signal(cm, "renderLine", cm, lineView.line, builder.pre);
	if (builder.pre.className)
		{ builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }

	return builder
	}

	function defaultSpecialCharPlaceholder(ch) {
	var token = elt("span", "\u2022", "cm-invalidchar");
	token.title = "\\u" + ch.charCodeAt(0).toString(16);
	token.setAttribute("aria-label", token.title);
	return token
	}

	// Build up the DOM representation for a single token, and add it to
	// the line map. Takes care to render special characters separately.
	function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
	if (!text) { return }
	var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
	var special = builder.cm.state.specialChars, mustWrap = false;
	var content;
	if (!special.test(text)) {
		builder.col += text.length;
		content = document.createTextNode(displayText);
		builder.map.push(builder.pos, builder.pos + text.length, content);
		if (ie && ie_version < 9) { mustWrap = true; }
		builder.pos += text.length;
	} else {
		content = document.createDocumentFragment();
		var pos = 0;
		while (true) {
		special.lastIndex = pos;
		var m = special.exec(text);
		var skipped = m ? m.index - pos : text.length - pos;
		if (skipped) {
			var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
			if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
			else { content.appendChild(txt); }
			builder.map.push(builder.pos, builder.pos + skipped, txt);
			builder.col += skipped;
			builder.pos += skipped;
		}
		if (!m) { break }
		pos += skipped + 1;
		var txt$1 = (void 0);
		if (m[0] == "\t") {
			var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
			txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
			txt$1.setAttribute("role", "presentation");
			txt$1.setAttribute("cm-text", "\t");
			builder.col += tabWidth;
		} else if (m[0] == "\r" || m[0] == "\n") {
			txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
			txt$1.setAttribute("cm-text", m[0]);
			builder.col += 1;
		} else {
			txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
			txt$1.setAttribute("cm-text", m[0]);
			if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
			else { content.appendChild(txt$1); }
			builder.col += 1;
		}
		builder.map.push(builder.pos, builder.pos + 1, txt$1);
		builder.pos++;
		}
	}
	builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
	if (style || startStyle || endStyle || mustWrap || css || attributes) {
		var fullStyle = style || "";
		if (startStyle) { fullStyle += startStyle; }
		if (endStyle) { fullStyle += endStyle; }
		var token = elt("span", [content], fullStyle, css);
		if (attributes) {
		for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
			{ token.setAttribute(attr, attributes[attr]); } }
		}
		return builder.content.appendChild(token)
	}
	builder.content.appendChild(content);
	}

	// Change some spaces to NBSP to prevent the browser from collapsing
	// trailing spaces at the end of a line when rendering text (issue #1362).
	function splitSpaces(text, trailingBefore) {
	if (text.length > 1 && !/  /.test(text)) { return text }
	var spaceBefore = trailingBefore, result = "";
	for (var i = 0; i < text.length; i++) {
		var ch = text.charAt(i);
		if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
		{ ch = "\u00a0"; }
		result += ch;
		spaceBefore = ch == " ";
	}
	return result
	}

	// Work around nonsense dimensions being reported for stretches of
	// right-to-left text.
	function buildTokenBadBidi(inner, order) {
	return function (builder, text, style, startStyle, endStyle, css, attributes) {
		style = style ? style + " cm-force-border" : "cm-force-border";
		var start = builder.pos, end = start + text.length;
		for (;;) {
		// Find the part that overlaps with the start of this text
		var part = (void 0);
		for (var i = 0; i < order.length; i++) {
			part = order[i];
			if (part.to > start && part.from <= start) { break }
		}
		if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
		inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
		startStyle = null;
		text = text.slice(part.to - start);
		start = part.to;
		}
	}
	}

	function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
	var widget = !ignoreWidget && marker.widgetNode;
	if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
	if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
		if (!widget)
		{ widget = builder.content.appendChild(document.createElement("span")); }
		widget.setAttribute("cm-marker", marker.id);
	}
	if (widget) {
		builder.cm.display.input.setUneditable(widget);
		builder.content.appendChild(widget);
	}
	builder.pos += size;
	builder.trailingSpace = false;
	}

	// Outputs a number of spans to make up a line, taking highlighting
	// and marked text into account.
	function insertLineContent(line, builder, styles) {
	var spans = line.markedSpans, allText = line.text, at = 0;
	if (!spans) {
		for (var i$1 = 1; i$1 < styles.length; i$1+=2)
		{ builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
		return
	}

	var len = allText.length, pos = 0, i = 1, text = "", style, css;
	var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;
	for (;;) {
		if (nextChange == pos) { // Update current marker set
		spanStyle = spanEndStyle = spanStartStyle = css = "";
		attributes = null;
		collapsed = null; nextChange = Infinity;
		var foundBookmarks = [], endStyles = (void 0);
		for (var j = 0; j < spans.length; ++j) {
			var sp = spans[j], m = sp.marker;
			if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
			foundBookmarks.push(m);
			} else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
			if (sp.to != null && sp.to != pos && nextChange > sp.to) {
				nextChange = sp.to;
				spanEndStyle = "";
			}
			if (m.className) { spanStyle += " " + m.className; }
			if (m.css) { css = (css ? css + ";" : "") + m.css; }
			if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
			if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
			// support for the old title property
			// https://github.com/codemirror/CodeMirror/pull/5673
			if (m.title) { (attributes || (attributes = {})).title = m.title; }
			if (m.attributes) {
				for (var attr in m.attributes)
				{ (attributes || (attributes = {}))[attr] = m.attributes[attr]; }
			}
			if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
				{ collapsed = sp; }
			} else if (sp.from > pos && nextChange > sp.from) {
			nextChange = sp.from;
			}
		}
		if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
			{ if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }

		if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
			{ buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
		if (collapsed && (collapsed.from || 0) == pos) {
			buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
							collapsed.marker, collapsed.from == null);
			if (collapsed.to == null) { return }
			if (collapsed.to == pos) { collapsed = false; }
		}
		}
		if (pos >= len) { break }

		var upto = Math.min(len, nextChange);
		while (true) {
		if (text) {
			var end = pos + text.length;
			if (!collapsed) {
			var tokenText = end > upto ? text.slice(0, upto - pos) : text;
			builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
							spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes);
			}
			if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
			pos = end;
			spanStartStyle = "";
		}
		text = allText.slice(at, at = styles[i++]);
		style = interpretTokenStyle(styles[i++], builder.cm.options);
		}
	}
	}


	// These objects are used to represent the visible (currently drawn)
	// part of the document. A LineView may correspond to multiple
	// logical lines, if those are connected by collapsed ranges.
	function LineView(doc, line, lineN) {
	// The starting line
	this.line = line;
	// Continuing lines, if any
	this.rest = visualLineContinued(line);
	// Number of logical lines in this visual line
	this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
	this.node = this.text = null;
	this.hidden = lineIsHidden(doc, line);
	}

	// Create a range of LineView objects for the given lines.
	function buildViewArray(cm, from, to) {
	var array = [], nextPos;
	for (var pos = from; pos < to; pos = nextPos) {
		var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
		nextPos = pos + view.size;
		array.push(view);
	}
	return array
	}

	var operationGroup = null;

	function pushOperation(op) {
	if (operationGroup) {
		operationGroup.ops.push(op);
	} else {
		op.ownsGroup = operationGroup = {
		ops: [op],
		delayedCallbacks: []
		};
	}
	}

	function fireCallbacksForOps(group) {
	// Calls delayed callbacks and cursorActivity handlers until no
	// new ones appear
	var callbacks = group.delayedCallbacks, i = 0;
	do {
		for (; i < callbacks.length; i++)
		{ callbacks[i].call(null); }
		for (var j = 0; j < group.ops.length; j++) {
		var op = group.ops[j];
		if (op.cursorActivityHandlers)
			{ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
			{ op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
		}
	} while (i < callbacks.length)
	}

	function finishOperation(op, endCb) {
	var group = op.ownsGroup;
	if (!group) { return }

	try { fireCallbacksForOps(group); }
	finally {
		operationGroup = null;
		endCb(group);
	}
	}

	var orphanDelayedCallbacks = null;

	// Often, we want to signal events at a point where we are in the
	// middle of some work, but don't want the handler to start calling
	// other methods on the editor, which might be in an inconsistent
	// state or simply not expect any other events to happen.
	// signalLater looks whether there are any handlers, and schedules
	// them to be executed when the last operation ends, or, if no
	// operation is active, when a timeout fires.
	function signalLater(emitter, type /*, values...*/) {
	var arr = getHandlers(emitter, type);
	if (!arr.length) { return }
	var args = Array.prototype.slice.call(arguments, 2), list;
	if (operationGroup) {
		list = operationGroup.delayedCallbacks;
	} else if (orphanDelayedCallbacks) {
		list = orphanDelayedCallbacks;
	} else {
		list = orphanDelayedCallbacks = [];
		setTimeout(fireOrphanDelayed, 0);
	}
	var loop = function ( i ) {
		list.push(function () { return arr[i].apply(null, args); });
	};

	for (var i = 0; i < arr.length; ++i)
		loop( i );
	}

	function fireOrphanDelayed() {
	var delayed = orphanDelayedCallbacks;
	orphanDelayedCallbacks = null;
	for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
	}

	// When an aspect of a line changes, a string is added to
	// lineView.changes. This updates the relevant part of the line's
	// DOM structure.
	function updateLineForChanges(cm, lineView, lineN, dims) {
	for (var j = 0; j < lineView.changes.length; j++) {
		var type = lineView.changes[j];
		if (type == "text") { updateLineText(cm, lineView); }
		else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
		else if (type == "class") { updateLineClasses(cm, lineView); }
		else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
	}
	lineView.changes = null;
	}

	// Lines with gutter elements, widgets or a background class need to
	// be wrapped, and have the extra elements added to the wrapper div
	function ensureLineWrapped(lineView) {
	if (lineView.node == lineView.text) {
		lineView.node = elt("div", null, null, "position: relative");
		if (lineView.text.parentNode)
		{ lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
		lineView.node.appendChild(lineView.text);
		if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
	}
	return lineView.node
	}

	function updateLineBackground(cm, lineView) {
	var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
	if (cls) { cls += " CodeMirror-linebackground"; }
	if (lineView.background) {
		if (cls) { lineView.background.className = cls; }
		else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
	} else if (cls) {
		var wrap = ensureLineWrapped(lineView);
		lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
		cm.display.input.setUneditable(lineView.background);
	}
	}

	// Wrapper around buildLineContent which will reuse the structure
	// in display.externalMeasured when possible.
	function getLineContent(cm, lineView) {
	var ext = cm.display.externalMeasured;
	if (ext && ext.line == lineView.line) {
		cm.display.externalMeasured = null;
		lineView.measure = ext.measure;
		return ext.built
	}
	return buildLineContent(cm, lineView)
	}

	// Redraw the line's text. Interacts with the background and text
	// classes because the mode may output tokens that influence these
	// classes.
	function updateLineText(cm, lineView) {
	var cls = lineView.text.className;
	var built = getLineContent(cm, lineView);
	if (lineView.text == lineView.node) { lineView.node = built.pre; }
	lineView.text.parentNode.replaceChild(built.pre, lineView.text);
	lineView.text = built.pre;
	if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
		lineView.bgClass = built.bgClass;
		lineView.textClass = built.textClass;
		updateLineClasses(cm, lineView);
	} else if (cls) {
		lineView.text.className = cls;
	}
	}

	function updateLineClasses(cm, lineView) {
	updateLineBackground(cm, lineView);
	if (lineView.line.wrapClass)
		{ ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
	else if (lineView.node != lineView.text)
		{ lineView.node.className = ""; }
	var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
	lineView.text.className = textClass || "";
	}

	function updateLineGutter(cm, lineView, lineN, dims) {
	if (lineView.gutter) {
		lineView.node.removeChild(lineView.gutter);
		lineView.gutter = null;
	}
	if (lineView.gutterBackground) {
		lineView.node.removeChild(lineView.gutterBackground);
		lineView.gutterBackground = null;
	}
	if (lineView.line.gutterClass) {
		var wrap = ensureLineWrapped(lineView);
		lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
										("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
		cm.display.input.setUneditable(lineView.gutterBackground);
		wrap.insertBefore(lineView.gutterBackground, lineView.text);
	}
	var markers = lineView.line.gutterMarkers;
	if (cm.options.lineNumbers || markers) {
		var wrap$1 = ensureLineWrapped(lineView);
		var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
		gutterWrap.setAttribute("aria-hidden", "true");
		cm.display.input.setUneditable(gutterWrap);
		wrap$1.insertBefore(gutterWrap, lineView.text);
		if (lineView.line.gutterClass)
		{ gutterWrap.className += " " + lineView.line.gutterClass; }
		if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
		{ lineView.lineNumber = gutterWrap.appendChild(
			elt("div", lineNumberFor(cm.options, lineN),
				"CodeMirror-linenumber CodeMirror-gutter-elt",
				("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
		if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {
		var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];
		if (found)
			{ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
									("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
		} }
	}
	}

	function updateLineWidgets(cm, lineView, dims) {
	if (lineView.alignable) { lineView.alignable = null; }
	var isWidget = classTest("CodeMirror-linewidget");
	for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
		next = node.nextSibling;
		if (isWidget.test(node.className)) { lineView.node.removeChild(node); }
	}
	insertLineWidgets(cm, lineView, dims);
	}

	// Build a line's DOM representation from scratch
	function buildLineElement(cm, lineView, lineN, dims) {
	var built = getLineContent(cm, lineView);
	lineView.text = lineView.node = built.pre;
	if (built.bgClass) { lineView.bgClass = built.bgClass; }
	if (built.textClass) { lineView.textClass = built.textClass; }

	updateLineClasses(cm, lineView);
	updateLineGutter(cm, lineView, lineN, dims);
	insertLineWidgets(cm, lineView, dims);
	return lineView.node
	}

	// A lineView may contain multiple logical lines (when merged by
	// collapsed spans). The widgets for all of them need to be drawn.
	function insertLineWidgets(cm, lineView, dims) {
	insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
	if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
		{ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
	}

	function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
	if (!line.widgets) { return }
	var wrap = ensureLineWrapped(lineView);
	for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
		var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""));
		if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
		positionLineWidget(widget, node, lineView, dims);
		cm.display.input.setUneditable(node);
		if (allowAbove && widget.above)
		{ wrap.insertBefore(node, lineView.gutter || lineView.text); }
		else
		{ wrap.appendChild(node); }
		signalLater(widget, "redraw");
	}
	}

	function positionLineWidget(widget, node, lineView, dims) {
	if (widget.noHScroll) {
	(lineView.alignable || (lineView.alignable = [])).push(node);
		var width = dims.wrapperWidth;
		node.style.left = dims.fixedPos + "px";
		if (!widget.coverGutter) {
		width -= dims.gutterTotalWidth;
		node.style.paddingLeft = dims.gutterTotalWidth + "px";
		}
		node.style.width = width + "px";
	}
	if (widget.coverGutter) {
		node.style.zIndex = 5;
		node.style.position = "relative";
		if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
	}
	}

	function widgetHeight(widget) {
	if (widget.height != null) { return widget.height }
	var cm = widget.doc.cm;
	if (!cm) { return 0 }
	if (!contains(document.body, widget.node)) {
		var parentStyle = "position: relative;";
		if (widget.coverGutter)
		{ parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
		if (widget.noHScroll)
		{ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
		removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
	}
	return widget.height = widget.node.parentNode.offsetHeight
	}

	// Return true when the given mouse event happened in a widget
	function eventInWidget(display, e) {
	for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
		if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
			(n.parentNode == display.sizer && n != display.mover))
		{ return true }
	}
	}

	// POSITION MEASUREMENT

	function paddingTop(display) {return display.lineSpace.offsetTop}
	function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
	function paddingH(display) {
	if (display.cachedPaddingH) { return display.cachedPaddingH }
	var e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like"));
	var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
	var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
	if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
	return data
	}

	function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
	function displayWidth(cm) {
	return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
	}
	function displayHeight(cm) {
	return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
	}

	// Ensure the lineView.wrapping.heights array is populated. This is
	// an array of bottom offsets for the lines that make up a drawn
	// line. When lineWrapping is on, there might be more than one
	// height.
	function ensureLineHeights(cm, lineView, rect) {
	var wrapping = cm.options.lineWrapping;
	var curWidth = wrapping && displayWidth(cm);
	if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
		var heights = lineView.measure.heights = [];
		if (wrapping) {
		lineView.measure.width = curWidth;
		var rects = lineView.text.firstChild.getClientRects();
		for (var i = 0; i < rects.length - 1; i++) {
			var cur = rects[i], next = rects[i + 1];
			if (Math.abs(cur.bottom - next.bottom) > 2)
			{ heights.push((cur.bottom + next.top) / 2 - rect.top); }
		}
		}
		heights.push(rect.bottom - rect.top);
	}
	}

	// Find a line map (mapping character offsets to text nodes) and a
	// measurement cache for the given line number. (A line view might
	// contain multiple lines when collapsed ranges are present.)
	function mapFromLineView(lineView, line, lineN) {
	if (lineView.line == line)
		{ return {map: lineView.measure.map, cache: lineView.measure.cache} }
	if (lineView.rest) {
		for (var i = 0; i < lineView.rest.length; i++)
		{ if (lineView.rest[i] == line)
			{ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
		for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
		{ if (lineNo(lineView.rest[i$1]) > lineN)
			{ return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
	}
	}

	// Render a line into the hidden node display.externalMeasured. Used
	// when measurement is needed for a line that's not in the viewport.
	function updateExternalMeasurement(cm, line) {
	line = visualLine(line);
	var lineN = lineNo(line);
	var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
	view.lineN = lineN;
	var built = view.built = buildLineContent(cm, view);
	view.text = built.pre;
	removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
	return view
	}

	// Get a {top, bottom, left, right} box (in line-local coordinates)
	// for a given character.
	function measureChar(cm, line, ch, bias) {
	return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
	}

	// Find a line view that corresponds to the given line number.
	function findViewForLine(cm, lineN) {
	if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
		{ return cm.display.view[findViewIndex(cm, lineN)] }
	var ext = cm.display.externalMeasured;
	if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
		{ return ext }
	}

	// Measurement can be split in two steps, the set-up work that
	// applies to the whole line, and the measurement of the actual
	// character. Functions like coordsChar, that need to do a lot of
	// measurements in a row, can thus ensure that the set-up work is
	// only done once.
	function prepareMeasureForLine(cm, line) {
	var lineN = lineNo(line);
	var view = findViewForLine(cm, lineN);
	if (view && !view.text) {
		view = null;
	} else if (view && view.changes) {
		updateLineForChanges(cm, view, lineN, getDimensions(cm));
		cm.curOp.forceUpdate = true;
	}
	if (!view)
		{ view = updateExternalMeasurement(cm, line); }

	var info = mapFromLineView(view, line, lineN);
	return {
		line: line, view: view, rect: null,
		map: info.map, cache: info.cache, before: info.before,
		hasHeights: false
	}
	}

	// Given a prepared measurement object, measures the position of an
	// actual character (or fetches it from the cache).
	function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
	if (prepared.before) { ch = -1; }
	var key = ch + (bias || ""), found;
	if (prepared.cache.hasOwnProperty(key)) {
		found = prepared.cache[key];
	} else {
		if (!prepared.rect)
		{ prepared.rect = prepared.view.text.getBoundingClientRect(); }
		if (!prepared.hasHeights) {
		ensureLineHeights(cm, prepared.view, prepared.rect);
		prepared.hasHeights = true;
		}
		found = measureCharInner(cm, prepared, ch, bias);
		if (!found.bogus) { prepared.cache[key] = found; }
	}
	return {left: found.left, right: found.right,
			top: varHeight ? found.rtop : found.top,
			bottom: varHeight ? found.rbottom : found.bottom}
	}

	var nullRect = {left: 0, right: 0, top: 0, bottom: 0};

	function nodeAndOffsetInLineMap(map, ch, bias) {
	var node, start, end, collapse, mStart, mEnd;
	// First, search the line map for the text node corresponding to,
	// or closest to, the target character.
	for (var i = 0; i < map.length; i += 3) {
		mStart = map[i];
		mEnd = map[i + 1];
		if (ch < mStart) {
		start = 0; end = 1;
		collapse = "left";
		} else if (ch < mEnd) {
		start = ch - mStart;
		end = start + 1;
		} else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
		end = mEnd - mStart;
		start = end - 1;
		if (ch >= mEnd) { collapse = "right"; }
		}
		if (start != null) {
		node = map[i + 2];
		if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
			{ collapse = bias; }
		if (bias == "left" && start == 0)
			{ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
			node = map[(i -= 3) + 2];
			collapse = "left";
			} }
		if (bias == "right" && start == mEnd - mStart)
			{ while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
			node = map[(i += 3) + 2];
			collapse = "right";
			} }
		break
		}
	}
	return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
	}

	function getUsefulRect(rects, bias) {
	var rect = nullRect;
	if (bias == "left") { for (var i = 0; i < rects.length; i++) {
		if ((rect = rects[i]).left != rect.right) { break }
	} } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
		if ((rect = rects[i$1]).left != rect.right) { break }
	} }
	return rect
	}

	function measureCharInner(cm, prepared, ch, bias) {
	var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
	var node = place.node, start = place.start, end = place.end, collapse = place.collapse;

	var rect;
	if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
		for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
		while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
		while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
		if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
			{ rect = node.parentNode.getBoundingClientRect(); }
		else
			{ rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
		if (rect.left || rect.right || start == 0) { break }
		end = start;
		start = start - 1;
		collapse = "right";
		}
		if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
	} else { // If it is a widget, simply get the box for the whole widget.
		if (start > 0) { collapse = bias = "right"; }
		var rects;
		if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
		{ rect = rects[bias == "right" ? rects.length - 1 : 0]; }
		else
		{ rect = node.getBoundingClientRect(); }
	}
	if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
		var rSpan = node.parentNode.getClientRects()[0];
		if (rSpan)
		{ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
		else
		{ rect = nullRect; }
	}

	var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
	var mid = (rtop + rbot) / 2;
	var heights = prepared.view.measure.heights;
	var i = 0;
	for (; i < heights.length - 1; i++)
		{ if (mid < heights[i]) { break } }
	var top = i ? heights[i - 1] : 0, bot = heights[i];
	var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
					right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
					top: top, bottom: bot};
	if (!rect.left && !rect.right) { result.bogus = true; }
	if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }

	return result
	}

	// Work around problem with bounding client rects on ranges being
	// returned incorrectly when zoomed on IE10 and below.
	function maybeUpdateRectForZooming(measure, rect) {
	if (!window.screen || screen.logicalXDPI == null ||
		screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
		{ return rect }
	var scaleX = screen.logicalXDPI / screen.deviceXDPI;
	var scaleY = screen.logicalYDPI / screen.deviceYDPI;
	return {left: rect.left * scaleX, right: rect.right * scaleX,
			top: rect.top * scaleY, bottom: rect.bottom * scaleY}
	}

	function clearLineMeasurementCacheFor(lineView) {
	if (lineView.measure) {
		lineView.measure.cache = {};
		lineView.measure.heights = null;
		if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
		{ lineView.measure.caches[i] = {}; } }
	}
	}

	function clearLineMeasurementCache(cm) {
	cm.display.externalMeasure = null;
	removeChildren(cm.display.lineMeasure);
	for (var i = 0; i < cm.display.view.length; i++)
		{ clearLineMeasurementCacheFor(cm.display.view[i]); }
	}

	function clearCaches(cm) {
	clearLineMeasurementCache(cm);
	cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
	if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
	cm.display.lineNumChars = null;
	}

	function pageScrollX(doc) {
	// Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
	// which causes page_Offset and bounding client rects to use
	// different reference viewports and invalidate our calculations.
	if (chrome && android) { return -(doc.body.getBoundingClientRect().left - parseInt(getComputedStyle(doc.body).marginLeft)) }
	return doc.defaultView.pageXOffset || (doc.documentElement || doc.body).scrollLeft
	}
	function pageScrollY(doc) {
	if (chrome && android) { return -(doc.body.getBoundingClientRect().top - parseInt(getComputedStyle(doc.body).marginTop)) }
	return doc.defaultView.pageYOffset || (doc.documentElement || doc.body).scrollTop
	}

	function widgetTopHeight(lineObj) {
	var ref = visualLine(lineObj);
	var widgets = ref.widgets;
	var height = 0;
	if (widgets) { for (var i = 0; i < widgets.length; ++i) { if (widgets[i].above)
		{ height += widgetHeight(widgets[i]); } } }
	return height
	}

	// Converts a {top, bottom, left, right} box from line-local
	// coordinates into another coordinate system. Context may be one of
	// "line", "div" (display.lineDiv), "local"./null (editor), "window",
	// or "page".
	function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
	if (!includeWidgets) {
		var height = widgetTopHeight(lineObj);
		rect.top += height; rect.bottom += height;
	}
	if (context == "line") { return rect }
	if (!context) { context = "local"; }
	var yOff = heightAtLine(lineObj);
	if (context == "local") { yOff += paddingTop(cm.display); }
	else { yOff -= cm.display.viewOffset; }
	if (context == "page" || context == "window") {
		var lOff = cm.display.lineSpace.getBoundingClientRect();
		yOff += lOff.top + (context == "window" ? 0 : pageScrollY(doc(cm)));
		var xOff = lOff.left + (context == "window" ? 0 : pageScrollX(doc(cm)));
		rect.left += xOff; rect.right += xOff;
	}
	rect.top += yOff; rect.bottom += yOff;
	return rect
	}

	// Coverts a box from "div" coords to another coordinate system.
	// Context may be "window", "page", "div", or "local"./null.
	function fromCoordSystem(cm, coords, context) {
	if (context == "div") { return coords }
	var left = coords.left, top = coords.top;
	// First move into "page" coordinate system
	if (context == "page") {
		left -= pageScrollX(doc(cm));
		top -= pageScrollY(doc(cm));
	} else if (context == "local" || !context) {
		var localBox = cm.display.sizer.getBoundingClientRect();
		left += localBox.left;
		top += localBox.top;
	}

	var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
	return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
	}

	function charCoords(cm, pos, context, lineObj, bias) {
	if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
	return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
	}

	// Returns a box for a given cursor position, which may have an
	// 'other' property containing the position of the secondary cursor
	// on a bidi boundary.
	// A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
	// and after `char - 1` in writing order of `char - 1`
	// A cursor Pos(line, char, "after") is on the same visual line as `char`
	// and before `char` in writing order of `char`
	// Examples (upper-case letters are RTL, lower-case are LTR):
	//     Pos(0, 1, ...)
	//     before   after
	// ab     a|b     a|b
	// aB     a|B     aB|
	// Ab     |Ab     A|b
	// AB     B|A     B|A
	// Every position after the last character on a line is considered to stick
	// to the last character on the line.
	function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
	lineObj = lineObj || getLine(cm.doc, pos.line);
	if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
	function get(ch, right) {
		var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
		if (right) { m.left = m.right; } else { m.right = m.left; }
		return intoCoordSystem(cm, lineObj, m, context)
	}
	var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
	if (ch >= lineObj.text.length) {
		ch = lineObj.text.length;
		sticky = "before";
	} else if (ch <= 0) {
		ch = 0;
		sticky = "after";
	}
	if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }

	function getBidi(ch, partPos, invert) {
		var part = order[partPos], right = part.level == 1;
		return get(invert ? ch - 1 : ch, right != invert)
	}
	var partPos = getBidiPartAt(order, ch, sticky);
	var other = bidiOther;
	var val = getBidi(ch, partPos, sticky == "before");
	if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
	return val
	}

	// Used to cheaply estimate the coordinates for a position. Used for
	// intermediate scroll updates.
	function estimateCoords(cm, pos) {
	var left = 0;
	pos = clipPos(cm.doc, pos);
	if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
	var lineObj = getLine(cm.doc, pos.line);
	var top = heightAtLine(lineObj) + paddingTop(cm.display);
	return {left: left, right: left, top: top, bottom: top + lineObj.height}
	}

	// Positions returned by coordsChar contain some extra information.
	// xRel is the relative x position of the input coordinates compared
	// to the found position (so xRel > 0 means the coordinates are to
	// the right of the character position, for example). When outside
	// is true, that means the coordinates lie outside the line's
	// vertical range.
	function PosWithInfo(line, ch, sticky, outside, xRel) {
	var pos = Pos(line, ch, sticky);
	pos.xRel = xRel;
	if (outside) { pos.outside = outside; }
	return pos
	}

	// Compute the character position closest to the given coordinates.
	// Input must be lineSpace-local ("div" coordinate system).
	function coordsChar(cm, x, y) {
	var doc = cm.doc;
	y += cm.display.viewOffset;
	if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }
	var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
	if (lineN > last)
		{ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }
	if (x < 0) { x = 0; }

	var lineObj = getLine(doc, lineN);
	for (;;) {
		var found = coordsCharInner(cm, lineObj, lineN, x, y);
		var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));
		if (!collapsed) { return found }
		var rangeEnd = collapsed.find(1);
		if (rangeEnd.line == lineN) { return rangeEnd }
		lineObj = getLine(doc, lineN = rangeEnd.line);
	}
	}

	function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
	y -= widgetTopHeight(lineObj);
	var end = lineObj.text.length;
	var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);
	end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);
	return {begin: begin, end: end}
	}

	function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
	if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
	var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
	return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
	}

	// Returns true if the given side of a box is after the given
	// coordinates, in top-to-bottom, left-to-right order.
	function boxIsAfter(box, x, y, left) {
	return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
	}

	function coordsCharInner(cm, lineObj, lineNo, x, y) {
	// Move y into line-local coordinate space
	y -= heightAtLine(lineObj);
	var preparedMeasure = prepareMeasureForLine(cm, lineObj);
	// When directly calling `measureCharPrepared`, we have to adjust
	// for the widgets at this line.
	var widgetHeight = widgetTopHeight(lineObj);
	var begin = 0, end = lineObj.text.length, ltr = true;

	var order = getOrder(lineObj, cm.doc.direction);
	// If the line isn't plain left-to-right text, first figure out
	// which bidi section the coordinates fall into.
	if (order) {
		var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
					(cm, lineObj, lineNo, preparedMeasure, order, x, y);
		ltr = part.level != 1;
		// The awkward -1 offsets are needed because findFirst (called
		// on these below) will treat its first bound as inclusive,
		// second as exclusive, but we want to actually address the
		// characters in the part's range
		begin = ltr ? part.from : part.to - 1;
		end = ltr ? part.to : part.from - 1;
	}

	// A binary search to find the first character whose bounding box
	// starts after the coordinates. If we run across any whose box wrap
	// the coordinates, store that.
	var chAround = null, boxAround = null;
	var ch = findFirst(function (ch) {
		var box = measureCharPrepared(cm, preparedMeasure, ch);
		box.top += widgetHeight; box.bottom += widgetHeight;
		if (!boxIsAfter(box, x, y, false)) { return false }
		if (box.top <= y && box.left <= x) {
		chAround = ch;
		boxAround = box;
		}
		return true
	}, begin, end);

	var baseX, sticky, outside = false;
	// If a box around the coordinates was found, use that
	if (boxAround) {
		// Distinguish coordinates nearer to the left or right side of the box
		var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
		ch = chAround + (atStart ? 0 : 1);
		sticky = atStart ? "after" : "before";
		baseX = atLeft ? boxAround.left : boxAround.right;
	} else {
		// (Adjust for extended bound, if necessary.)
		if (!ltr && (ch == end || ch == begin)) { ch++; }
		// To determine which side to associate with, get the box to the
		// left of the character and compare it's vertical position to the
		// coordinates
		sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
		(measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
		"after" : "before";
		// Now get accurate coordinates for this place, in order to get a
		// base X position
		var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
		baseX = coords.left;
		outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
	}

	ch = skipExtendingChars(lineObj.text, ch, 1);
	return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
	}

	function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
	// Bidi parts are sorted left-to-right, and in a non-line-wrapping
	// situation, we can take this ordering to correspond to the visual
	// ordering. This finds the first part whose end is after the given
	// coordinates.
	var index = findFirst(function (i) {
		var part = order[i], ltr = part.level != 1;
		return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
									"line", lineObj, preparedMeasure), x, y, true)
	}, 0, order.length - 1);
	var part = order[index];
	// If this isn't the first part, the part's start is also after
	// the coordinates, and the coordinates aren't on the same line as
	// that start, move one part back.
	if (index > 0) {
		var ltr = part.level != 1;
		var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
								"line", lineObj, preparedMeasure);
		if (boxIsAfter(start, x, y, true) && start.top > y)
		{ part = order[index - 1]; }
	}
	return part
	}

	function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
	// In a wrapped line, rtl text on wrapping boundaries can do things
	// that don't correspond to the ordering in our `order` array at
	// all, so a binary search doesn't work, and we want to return a
	// part that only spans one line so that the binary search in
	// coordsCharInner is safe. As such, we first find the extent of the
	// wrapped line, and then do a flat search in which we discard any
	// spans that aren't on the line.
	var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
	var begin = ref.begin;
	var end = ref.end;
	if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; }
	var part = null, closestDist = null;
	for (var i = 0; i < order.length; i++) {
		var p = order[i];
		if (p.from >= end || p.to <= begin) { continue }
		var ltr = p.level != 1;
		var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;
		// Weigh against spans ending before this, so that they are only
		// picked if nothing ends after
		var dist = endX < x ? x - endX + 1e9 : endX - x;
		if (!part || closestDist > dist) {
		part = p;
		closestDist = dist;
		}
	}
	if (!part) { part = order[order.length - 1]; }
	// Clip the part to the wrapped line.
	if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }
	if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }
	return part
	}

	var measureText;
	// Compute the default text height.
	function textHeight(display) {
	if (display.cachedTextHeight != null) { return display.cachedTextHeight }
	if (measureText == null) {
		measureText = elt("pre", null, "CodeMirror-line-like");
		// Measure a bunch of lines, for browsers that compute
		// fractional heights.
		for (var i = 0; i < 49; ++i) {
		measureText.appendChild(document.createTextNode("x"));
		measureText.appendChild(elt("br"));
		}
		measureText.appendChild(document.createTextNode("x"));
	}
	removeChildrenAndAdd(display.measure, measureText);
	var height = measureText.offsetHeight / 50;
	if (height > 3) { display.cachedTextHeight = height; }
	removeChildren(display.measure);
	return height || 1
	}

	// Compute the default character width.
	function charWidth(display) {
	if (display.cachedCharWidth != null) { return display.cachedCharWidth }
	var anchor = elt("span", "xxxxxxxxxx");
	var pre = elt("pre", [anchor], "CodeMirror-line-like");
	removeChildrenAndAdd(display.measure, pre);
	var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
	if (width > 2) { display.cachedCharWidth = width; }
	return width || 10
	}

	// Do a bulk-read of the DOM positions and sizes needed to draw the
	// view, so that we don't interleave reading and writing to the DOM.
	function getDimensions(cm) {
	var d = cm.display, left = {}, width = {};
	var gutterLeft = d.gutters.clientLeft;
	for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
		var id = cm.display.gutterSpecs[i].className;
		left[id] = n.offsetLeft + n.clientLeft + gutterLeft;
		width[id] = n.clientWidth;
	}
	return {fixedPos: compensateForHScroll(d),
			gutterTotalWidth: d.gutters.offsetWidth,
			gutterLeft: left,
			gutterWidth: width,
			wrapperWidth: d.wrapper.clientWidth}
	}

	// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
	// but using getBoundingClientRect to get a sub-pixel-accurate
	// result.
	function compensateForHScroll(display) {
	return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
	}

	// Returns a function that estimates the height of a line, to use as
	// first approximation until the line becomes visible (and is thus
	// properly measurable).
	function estimateHeight(cm) {
	var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
	var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
	return function (line) {
		if (lineIsHidden(cm.doc, line)) { return 0 }

		var widgetsHeight = 0;
		if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
		if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
		} }

		if (wrapping)
		{ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
		else
		{ return widgetsHeight + th }
	}
	}

	function estimateLineHeights(cm) {
	var doc = cm.doc, est = estimateHeight(cm);
	doc.iter(function (line) {
		var estHeight = est(line);
		if (estHeight != line.height) { updateLineHeight(line, estHeight); }
	});
	}

	// Given a mouse event, find the corresponding position. If liberal
	// is false, it checks whether a gutter or scrollbar was clicked,
	// and returns null if it was. forRect is used by rectangular
	// selections, and tries to estimate a character position even for
	// coordinates beyond the right of the text.
	function posFromMouse(cm, e, liberal, forRect) {
	var display = cm.display;
	if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }

	var x, y, space = display.lineSpace.getBoundingClientRect();
	// Fails unpredictably on IE[67] when mouse is dragged around quickly.
	try { x = e.clientX - space.left; y = e.clientY - space.top; }
	catch (e$1) { return null }
	var coords = coordsChar(cm, x, y), line;
	if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
		var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
		coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
	}
	return coords
	}

	// Find the view element corresponding to a given line. Return null
	// when the line isn't visible.
	function findViewIndex(cm, n) {
	if (n >= cm.display.viewTo) { return null }
	n -= cm.display.viewFrom;
	if (n < 0) { return null }
	var view = cm.display.view;
	for (var i = 0; i < view.length; i++) {
		n -= view[i].size;
		if (n < 0) { return i }
	}
	}

	// Updates the display.view data structure for a given change to the
	// document. From and to are in pre-change coordinates. Lendiff is
	// the amount of lines added or subtracted by the change. This is
	// used for changes that span multiple lines, or change the way
	// lines are divided into visual lines. regLineChange (below)
	// registers single-line changes.
	function regChange(cm, from, to, lendiff) {
	if (from == null) { from = cm.doc.first; }
	if (to == null) { to = cm.doc.first + cm.doc.size; }
	if (!lendiff) { lendiff = 0; }

	var display = cm.display;
	if (lendiff && to < display.viewTo &&
		(display.updateLineNumbers == null || display.updateLineNumbers > from))
		{ display.updateLineNumbers = from; }

	cm.curOp.viewChanged = true;

	if (from >= display.viewTo) { // Change after
		if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
		{ resetView(cm); }
	} else if (to <= display.viewFrom) { // Change before
		if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
		resetView(cm);
		} else {
		display.viewFrom += lendiff;
		display.viewTo += lendiff;
		}
	} else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
		resetView(cm);
	} else if (from <= display.viewFrom) { // Top overlap
		var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
		if (cut) {
		display.view = display.view.slice(cut.index);
		display.viewFrom = cut.lineN;
		display.viewTo += lendiff;
		} else {
		resetView(cm);
		}
	} else if (to >= display.viewTo) { // Bottom overlap
		var cut$1 = viewCuttingPoint(cm, from, from, -1);
		if (cut$1) {
		display.view = display.view.slice(0, cut$1.index);
		display.viewTo = cut$1.lineN;
		} else {
		resetView(cm);
		}
	} else { // Gap in the middle
		var cutTop = viewCuttingPoint(cm, from, from, -1);
		var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
		if (cutTop && cutBot) {
		display.view = display.view.slice(0, cutTop.index)
			.concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
			.concat(display.view.slice(cutBot.index));
		display.viewTo += lendiff;
		} else {
		resetView(cm);
		}
	}

	var ext = display.externalMeasured;
	if (ext) {
		if (to < ext.lineN)
		{ ext.lineN += lendiff; }
		else if (from < ext.lineN + ext.size)
		{ display.externalMeasured = null; }
	}
	}

	// Register a change to a single line. Type must be one of "text",
	// "gutter", "class", "widget"
	function regLineChange(cm, line, type) {
	cm.curOp.viewChanged = true;
	var display = cm.display, ext = cm.display.externalMeasured;
	if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
		{ display.externalMeasured = null; }

	if (line < display.viewFrom || line >= display.viewTo) { return }
	var lineView = display.view[findViewIndex(cm, line)];
	if (lineView.node == null) { return }
	var arr = lineView.changes || (lineView.changes = []);
	if (indexOf(arr, type) == -1) { arr.push(type); }
	}

	// Clear the view.
	function resetView(cm) {
	cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
	cm.display.view = [];
	cm.display.viewOffset = 0;
	}

	function viewCuttingPoint(cm, oldN, newN, dir) {
	var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
	if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
		{ return {index: index, lineN: newN} }
	var n = cm.display.viewFrom;
	for (var i = 0; i < index; i++)
		{ n += view[i].size; }
	if (n != oldN) {
		if (dir > 0) {
		if (index == view.length - 1) { return null }
		diff = (n + view[index].size) - oldN;
		index++;
		} else {
		diff = n - oldN;
		}
		oldN += diff; newN += diff;
	}
	while (visualLineNo(cm.doc, newN) != newN) {
		if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
		newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
		index += dir;
	}
	return {index: index, lineN: newN}
	}

	// Force the view to cover a given range, adding empty view element
	// or clipping off existing ones as needed.
	function adjustView(cm, from, to) {
	var display = cm.display, view = display.view;
	if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
		display.view = buildViewArray(cm, from, to);
		display.viewFrom = from;
	} else {
		if (display.viewFrom > from)
		{ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
		else if (display.viewFrom < from)
		{ display.view = display.view.slice(findViewIndex(cm, from)); }
		display.viewFrom = from;
		if (display.viewTo < to)
		{ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
		else if (display.viewTo > to)
		{ display.view = display.view.slice(0, findViewIndex(cm, to)); }
	}
	display.viewTo = to;
	}

	// Count the number of lines in the view whose DOM representation is
	// out of date (or nonexistent).
	function countDirtyView(cm) {
	var view = cm.display.view, dirty = 0;
	for (var i = 0; i < view.length; i++) {
		var lineView = view[i];
		if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
	}
	return dirty
	}

	function updateSelection(cm) {
	cm.display.input.showSelection(cm.display.input.prepareSelection());
	}

	function prepareSelection(cm, primary) {
	if ( primary === void 0 ) primary = true;

	var doc = cm.doc, result = {};
	var curFragment = result.cursors = document.createDocumentFragment();
	var selFragment = result.selection = document.createDocumentFragment();

	var customCursor = cm.options.$customCursor;
	if (customCursor) { primary = true; }
	for (var i = 0; i < doc.sel.ranges.length; i++) {
		if (!primary && i == doc.sel.primIndex) { continue }
		var range = doc.sel.ranges[i];
		if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
		var collapsed = range.empty();
		if (customCursor) {
		var head = customCursor(cm, range);
		if (head) { drawSelectionCursor(cm, head, curFragment); }
		} else if (collapsed || cm.options.showCursorWhenSelecting) {
		drawSelectionCursor(cm, range.head, curFragment);
		}
		if (!collapsed)
		{ drawSelectionRange(cm, range, selFragment); }
	}
	return result
	}

	// Draws a cursor for the given range
	function drawSelectionCursor(cm, head, output) {
	var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);

	var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
	cursor.style.left = pos.left + "px";
	cursor.style.top = pos.top + "px";
	cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";

	if (/\bcm-fat-cursor\b/.test(cm.getWrapperElement().className)) {
		var charPos = charCoords(cm, head, "div", null, null);
		var width = charPos.right - charPos.left;
		cursor.style.width = (width > 0 ? width : cm.defaultCharWidth()) + "px";
	}

	if (pos.other) {
		// Secondary cursor, shown when on a 'jump' in bi-directional text
		var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
		otherCursor.style.display = "";
		otherCursor.style.left = pos.other.left + "px";
		otherCursor.style.top = pos.other.top + "px";
		otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
	}
	}

	function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }

	// Draws the given range as a highlighted selection
	function drawSelectionRange(cm, range, output) {
	var display = cm.display, doc = cm.doc;
	var fragment = document.createDocumentFragment();
	var padding = paddingH(cm.display), leftSide = padding.left;
	var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
	var docLTR = doc.direction == "ltr";

	function add(left, top, width, bottom) {
		if (top < 0) { top = 0; }
		top = Math.round(top);
		bottom = Math.round(bottom);
		fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n                             top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n                             height: " + (bottom - top) + "px")));
	}

	function drawForLine(line, fromArg, toArg) {
		var lineObj = getLine(doc, line);
		var lineLen = lineObj.text.length;
		var start, end;
		function coords(ch, bias) {
		return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
		}

		function wrapX(pos, dir, side) {
		var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
		var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
		var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
		return coords(ch, prop)[prop]
		}

		var order = getOrder(lineObj, doc.direction);
		iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
		var ltr = dir == "ltr";
		var fromPos = coords(from, ltr ? "left" : "right");
		var toPos = coords(to - 1, ltr ? "right" : "left");

		var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;
		var first = i == 0, last = !order || i == order.length - 1;
		if (toPos.top - fromPos.top <= 3) { // Single line
			var openLeft = (docLTR ? openStart : openEnd) && first;
			var openRight = (docLTR ? openEnd : openStart) && last;
			var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;
			var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;
			add(left, fromPos.top, right - left, fromPos.bottom);
		} else { // Multiple lines
			var topLeft, topRight, botLeft, botRight;
			if (ltr) {
			topLeft = docLTR && openStart && first ? leftSide : fromPos.left;
			topRight = docLTR ? rightSide : wrapX(from, dir, "before");
			botLeft = docLTR ? leftSide : wrapX(to, dir, "after");
			botRight = docLTR && openEnd && last ? rightSide : toPos.right;
			} else {
			topLeft = !docLTR ? leftSide : wrapX(from, dir, "before");
			topRight = !docLTR && openStart && first ? rightSide : fromPos.right;
			botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;
			botRight = !docLTR ? rightSide : wrapX(to, dir, "after");
			}
			add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);
			if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }
			add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);
		}

		if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
		if (cmpCoords(toPos, start) < 0) { start = toPos; }
		if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
		if (cmpCoords(toPos, end) < 0) { end = toPos; }
		});
		return {start: start, end: end}
	}

	var sFrom = range.from(), sTo = range.to();
	if (sFrom.line == sTo.line) {
		drawForLine(sFrom.line, sFrom.ch, sTo.ch);
	} else {
		var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
		var singleVLine = visualLine(fromLine) == visualLine(toLine);
		var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
		var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
		if (singleVLine) {
		if (leftEnd.top < rightStart.top - 2) {
			add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
			add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
		} else {
			add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
		}
		}
		if (leftEnd.bottom < rightStart.top)
		{ add(leftSide, leftEnd.bottom, null, rightStart.top); }
	}

	output.appendChild(fragment);
	}

	// Cursor-blinking
	function restartBlink(cm) {
	if (!cm.state.focused) { return }
	var display = cm.display;
	clearInterval(display.blinker);
	var on = true;
	display.cursorDiv.style.visibility = "";
	if (cm.options.cursorBlinkRate > 0)
		{ display.blinker = setInterval(function () {
		if (!cm.hasFocus()) { onBlur(cm); }
		display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
		}, cm.options.cursorBlinkRate); }
	else if (cm.options.cursorBlinkRate < 0)
		{ display.cursorDiv.style.visibility = "hidden"; }
	}

	function ensureFocus(cm) {
	if (!cm.hasFocus()) {
		cm.display.input.focus();
		if (!cm.state.focused) { onFocus(cm); }
	}
	}

	function delayBlurEvent(cm) {
	cm.state.delayingBlurEvent = true;
	setTimeout(function () { if (cm.state.delayingBlurEvent) {
		cm.state.delayingBlurEvent = false;
		if (cm.state.focused) { onBlur(cm); }
	} }, 100);
	}

	function onFocus(cm, e) {
	if (cm.state.delayingBlurEvent && !cm.state.draggingText) { cm.state.delayingBlurEvent = false; }

	if (cm.options.readOnly == "nocursor") { return }
	if (!cm.state.focused) {
		signal(cm, "focus", cm, e);
		cm.state.focused = true;
		addClass(cm.display.wrapper, "CodeMirror-focused");
		// This test prevents this from firing when a context
		// menu is closed (since the input reset would kill the
		// select-all detection hack)
		if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
		cm.display.input.reset();
		if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
		}
		cm.display.input.receivedFocus();
	}
	restartBlink(cm);
	}
	function onBlur(cm, e) {
	if (cm.state.delayingBlurEvent) { return }

	if (cm.state.focused) {
		signal(cm, "blur", cm, e);
		cm.state.focused = false;
		rmClass(cm.display.wrapper, "CodeMirror-focused");
	}
	clearInterval(cm.display.blinker);
	setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
	}

	// Read the actual heights of the rendered lines, and update their
	// stored heights to match.
	function updateHeightsInViewport(cm) {
	var display = cm.display;
	var prevBottom = display.lineDiv.offsetTop;
	var viewTop = Math.max(0, display.scroller.getBoundingClientRect().top);
	var oldHeight = display.lineDiv.getBoundingClientRect().top;
	var mustScroll = 0;
	for (var i = 0; i < display.view.length; i++) {
		var cur = display.view[i], wrapping = cm.options.lineWrapping;
		var height = (void 0), width = 0;
		if (cur.hidden) { continue }
		oldHeight += cur.line.height;
		if (ie && ie_version < 8) {
		var bot = cur.node.offsetTop + cur.node.offsetHeight;
		height = bot - prevBottom;
		prevBottom = bot;
		} else {
		var box = cur.node.getBoundingClientRect();
		height = box.bottom - box.top;
		// Check that lines don't extend past the right of the current
		// editor width
		if (!wrapping && cur.text.firstChild)
			{ width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
		}
		var diff = cur.line.height - height;
		if (diff > .005 || diff < -.005) {
		if (oldHeight < viewTop) { mustScroll -= diff; }
		updateLineHeight(cur.line, height);
		updateWidgetHeight(cur.line);
		if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
			{ updateWidgetHeight(cur.rest[j]); } }
		}
		if (width > cm.display.sizerWidth) {
		var chWidth = Math.ceil(width / charWidth(cm.display));
		if (chWidth > cm.display.maxLineLength) {
			cm.display.maxLineLength = chWidth;
			cm.display.maxLine = cur.line;
			cm.display.maxLineChanged = true;
		}
		}
	}
	if (Math.abs(mustScroll) > 2) { display.scroller.scrollTop += mustScroll; }
	}

	// Read and store the height of line widgets associated with the
	// given line.
	function updateWidgetHeight(line) {
	if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
		var w = line.widgets[i], parent = w.node.parentNode;
		if (parent) { w.height = parent.offsetHeight; }
	} }
	}

	// Compute the lines that are visible in a given viewport (defaults
	// the the current scroll position). viewport may contain top,
	// height, and ensure (see op.scrollToPos) properties.
	function visibleLines(display, doc, viewport) {
	var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
	top = Math.floor(top - paddingTop(display));
	var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;

	var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
	// Ensure is a {from: {line, ch}, to: {line, ch}} object, and
	// forces those lines into the viewport (if possible).
	if (viewport && viewport.ensure) {
		var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
		if (ensureFrom < from) {
		from = ensureFrom;
		to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
		} else if (Math.min(ensureTo, doc.lastLine()) >= to) {
		from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
		to = ensureTo;
		}
	}
	return {from: from, to: Math.max(to, from + 1)}
	}

	// SCROLLING THINGS INTO VIEW

	// If an editor sits on the top or bottom of the window, partially
	// scrolled out of view, this ensures that the cursor is visible.
	function maybeScrollWindow(cm, rect) {
	if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }

	var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
	var doc = display.wrapper.ownerDocument;
	if (rect.top + box.top < 0) { doScroll = true; }
	else if (rect.bottom + box.top > (doc.defaultView.innerHeight || doc.documentElement.clientHeight)) { doScroll = false; }
	if (doScroll != null && !phantom) {
		var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n                         top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n                         height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n                         left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
		cm.display.lineSpace.appendChild(scrollNode);
		scrollNode.scrollIntoView(doScroll);
		cm.display.lineSpace.removeChild(scrollNode);
	}
	}

	// Scroll a given position into view (immediately), verifying that
	// it actually became visible (as line heights are accurately
	// measured, the position of something may 'drift' during drawing).
	function scrollPosIntoView(cm, pos, end, margin) {
	if (margin == null) { margin = 0; }
	var rect;
	if (!cm.options.lineWrapping && pos == end) {
		// Set pos and end to the cursor positions around the character pos sticks to
		// If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
		// If pos == Pos(_, 0, "before"), pos and end are unchanged
		end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
		pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
	}
	for (var limit = 0; limit < 5; limit++) {
		var changed = false;
		var coords = cursorCoords(cm, pos);
		var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
		rect = {left: Math.min(coords.left, endCoords.left),
				top: Math.min(coords.top, endCoords.top) - margin,
				right: Math.max(coords.left, endCoords.left),
				bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
		var scrollPos = calculateScrollPos(cm, rect);
		var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
		if (scrollPos.scrollTop != null) {
		updateScrollTop(cm, scrollPos.scrollTop);
		if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
		}
		if (scrollPos.scrollLeft != null) {
		setScrollLeft(cm, scrollPos.scrollLeft);
		if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
		}
		if (!changed) { break }
	}
	return rect
	}

	// Scroll a given set of coordinates into view (immediately).
	function scrollIntoView(cm, rect) {
	var scrollPos = calculateScrollPos(cm, rect);
	if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
	if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
	}

	// Calculate a new scroll position needed to scroll the given
	// rectangle into view. Returns an object with scrollTop and
	// scrollLeft properties. When these are undefined, the
	// vertical/horizontal position does not need to be adjusted.
	function calculateScrollPos(cm, rect) {
	var display = cm.display, snapMargin = textHeight(cm.display);
	if (rect.top < 0) { rect.top = 0; }
	var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
	var screen = displayHeight(cm), result = {};
	if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
	var docBottom = cm.doc.height + paddingVert(display);
	var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
	if (rect.top < screentop) {
		result.scrollTop = atTop ? 0 : rect.top;
	} else if (rect.bottom > screentop + screen) {
		var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
		if (newTop != screentop) { result.scrollTop = newTop; }
	}

	var gutterSpace = cm.options.fixedGutter ? 0 : display.gutters.offsetWidth;
	var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft - gutterSpace;
	var screenw = displayWidth(cm) - display.gutters.offsetWidth;
	var tooWide = rect.right - rect.left > screenw;
	if (tooWide) { rect.right = rect.left + screenw; }
	if (rect.left < 10)
		{ result.scrollLeft = 0; }
	else if (rect.left < screenleft)
		{ result.scrollLeft = Math.max(0, rect.left + gutterSpace - (tooWide ? 0 : 10)); }
	else if (rect.right > screenw + screenleft - 3)
		{ result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
	return result
	}

	// Store a relative adjustment to the scroll position in the current
	// operation (to be applied when the operation finishes).
	function addToScrollTop(cm, top) {
	if (top == null) { return }
	resolveScrollToPos(cm);
	cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
	}

	// Make sure that at the end of the operation the current cursor is
	// shown.
	function ensureCursorVisible(cm) {
	resolveScrollToPos(cm);
	var cur = cm.getCursor();
	cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
	}

	function scrollToCoords(cm, x, y) {
	if (x != null || y != null) { resolveScrollToPos(cm); }
	if (x != null) { cm.curOp.scrollLeft = x; }
	if (y != null) { cm.curOp.scrollTop = y; }
	}

	function scrollToRange(cm, range) {
	resolveScrollToPos(cm);
	cm.curOp.scrollToPos = range;
	}

	// When an operation has its scrollToPos property set, and another
	// scroll action is applied before the end of the operation, this
	// 'simulates' scrolling that position into view in a cheap way, so
	// that the effect of intermediate scroll commands is not ignored.
	function resolveScrollToPos(cm) {
	var range = cm.curOp.scrollToPos;
	if (range) {
		cm.curOp.scrollToPos = null;
		var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
		scrollToCoordsRange(cm, from, to, range.margin);
	}
	}

	function scrollToCoordsRange(cm, from, to, margin) {
	var sPos = calculateScrollPos(cm, {
		left: Math.min(from.left, to.left),
		top: Math.min(from.top, to.top) - margin,
		right: Math.max(from.right, to.right),
		bottom: Math.max(from.bottom, to.bottom) + margin
	});
	scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
	}

	// Sync the scrollable area and scrollbars, ensure the viewport
	// covers the visible area.
	function updateScrollTop(cm, val) {
	if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
	if (!gecko) { updateDisplaySimple(cm, {top: val}); }
	setScrollTop(cm, val, true);
	if (gecko) { updateDisplaySimple(cm); }
	startWorker(cm, 100);
	}

	function setScrollTop(cm, val, forceScroll) {
	val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));
	if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
	cm.doc.scrollTop = val;
	cm.display.scrollbars.setScrollTop(val);
	if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
	}

	// Sync scroller and scrollbar, ensure the gutter elements are
	// aligned.
	function setScrollLeft(cm, val, isScroller, forceScroll) {
	val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
	if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
	cm.doc.scrollLeft = val;
	alignHorizontally(cm);
	if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
	cm.display.scrollbars.setScrollLeft(val);
	}

	// SCROLLBARS

	// Prepare DOM reads needed to update the scrollbars. Done in one
	// shot to minimize update/measure roundtrips.
	function measureForScrollbars(cm) {
	var d = cm.display, gutterW = d.gutters.offsetWidth;
	var docH = Math.round(cm.doc.height + paddingVert(cm.display));
	return {
		clientHeight: d.scroller.clientHeight,
		viewHeight: d.wrapper.clientHeight,
		scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
		viewWidth: d.wrapper.clientWidth,
		barLeft: cm.options.fixedGutter ? gutterW : 0,
		docHeight: docH,
		scrollHeight: docH + scrollGap(cm) + d.barHeight,
		nativeBarWidth: d.nativeBarWidth,
		gutterWidth: gutterW
	}
	}

	var NativeScrollbars = function(place, scroll, cm) {
	this.cm = cm;
	var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
	var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
	vert.tabIndex = horiz.tabIndex = -1;
	place(vert); place(horiz);

	on(vert, "scroll", function () {
		if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
	});
	on(horiz, "scroll", function () {
		if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
	});

	this.checkedZeroWidth = false;
	// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
	if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
	};

	NativeScrollbars.prototype.update = function (measure) {
	var needsH = measure.scrollWidth > measure.clientWidth + 1;
	var needsV = measure.scrollHeight > measure.clientHeight + 1;
	var sWidth = measure.nativeBarWidth;

	if (needsV) {
		this.vert.style.display = "block";
		this.vert.style.bottom = needsH ? sWidth + "px" : "0";
		var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
		// A bug in IE8 can cause this value to be negative, so guard it.
		this.vert.firstChild.style.height =
		Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
	} else {
		this.vert.scrollTop = 0;
		this.vert.style.display = "";
		this.vert.firstChild.style.height = "0";
	}

	if (needsH) {
		this.horiz.style.display = "block";
		this.horiz.style.right = needsV ? sWidth + "px" : "0";
		this.horiz.style.left = measure.barLeft + "px";
		var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
		this.horiz.firstChild.style.width =
		Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
	} else {
		this.horiz.style.display = "";
		this.horiz.firstChild.style.width = "0";
	}

	if (!this.checkedZeroWidth && measure.clientHeight > 0) {
		if (sWidth == 0) { this.zeroWidthHack(); }
		this.checkedZeroWidth = true;
	}

	return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
	};

	NativeScrollbars.prototype.setScrollLeft = function (pos) {
	if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
	if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
	};

	NativeScrollbars.prototype.setScrollTop = function (pos) {
	if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
	if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
	};

	NativeScrollbars.prototype.zeroWidthHack = function () {
	var w = mac && !mac_geMountainLion ? "12px" : "18px";
	this.horiz.style.height = this.vert.style.width = w;
	this.horiz.style.visibility = this.vert.style.visibility = "hidden";
	this.disableHoriz = new Delayed;
	this.disableVert = new Delayed;
	};

	NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
	bar.style.visibility = "";
	function maybeDisable() {
		// To find out whether the scrollbar is still visible, we
		// check whether the element under the pixel in the bottom
		// right corner of the scrollbar box is the scrollbar box
		// itself (when the bar is still visible) or its filler child
		// (when the bar is hidden). If it is still visible, we keep
		// it enabled, if it's hidden, we disable pointer events.
		var box = bar.getBoundingClientRect();
		var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
			: document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
		if (elt != bar) { bar.style.visibility = "hidden"; }
		else { delay.set(1000, maybeDisable); }
	}
	delay.set(1000, maybeDisable);
	};

	NativeScrollbars.prototype.clear = function () {
	var parent = this.horiz.parentNode;
	parent.removeChild(this.horiz);
	parent.removeChild(this.vert);
	};

	var NullScrollbars = function () {};

	NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
	NullScrollbars.prototype.setScrollLeft = function () {};
	NullScrollbars.prototype.setScrollTop = function () {};
	NullScrollbars.prototype.clear = function () {};

	function updateScrollbars(cm, measure) {
	if (!measure) { measure = measureForScrollbars(cm); }
	var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
	updateScrollbarsInner(cm, measure);
	for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
		if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
		{ updateHeightsInViewport(cm); }
		updateScrollbarsInner(cm, measureForScrollbars(cm));
		startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
	}
	}

	// Re-synchronize the fake scrollbars with the actual size of the
	// content.
	function updateScrollbarsInner(cm, measure) {
	var d = cm.display;
	var sizes = d.scrollbars.update(measure);

	d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
	d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
	d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";

	if (sizes.right && sizes.bottom) {
		d.scrollbarFiller.style.display = "block";
		d.scrollbarFiller.style.height = sizes.bottom + "px";
		d.scrollbarFiller.style.width = sizes.right + "px";
	} else { d.scrollbarFiller.style.display = ""; }
	if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
		d.gutterFiller.style.display = "block";
		d.gutterFiller.style.height = sizes.bottom + "px";
		d.gutterFiller.style.width = measure.gutterWidth + "px";
	} else { d.gutterFiller.style.display = ""; }
	}

	var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};

	function initScrollbars(cm) {
	if (cm.display.scrollbars) {
		cm.display.scrollbars.clear();
		if (cm.display.scrollbars.addClass)
		{ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
	}

	cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
		cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
		// Prevent clicks in the scrollbars from killing focus
		on(node, "mousedown", function () {
		if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
		});
		node.setAttribute("cm-not-content", "true");
	}, function (pos, axis) {
		if (axis == "horizontal") { setScrollLeft(cm, pos); }
		else { updateScrollTop(cm, pos); }
	}, cm);
	if (cm.display.scrollbars.addClass)
		{ addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
	}

	// Operations are used to wrap a series of changes to the editor
	// state in such a way that each change won't have to update the
	// cursor and display (which would be awkward, slow, and
	// error-prone). Instead, display updates are batched and then all
	// combined and executed at once.

	var nextOpId = 0;
	// Start a new operation.
	function startOperation(cm) {
	cm.curOp = {
		cm: cm,
		viewChanged: false,      // Flag that indicates that lines might need to be redrawn
		startHeight: cm.doc.height, // Used to detect need to update scrollbar
		forceUpdate: false,      // Used to force a redraw
		updateInput: 0,       // Whether to reset the input textarea
		typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
		changeObjs: null,        // Accumulated changes, for firing change events
		cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
		cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
		selectionChanged: false, // Whether the selection needs to be redrawn
		updateMaxLine: false,    // Set when the widest line needs to be determined anew
		scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
		scrollToPos: null,       // Used to scroll to a specific position
		focus: false,
		id: ++nextOpId,          // Unique ID
		markArrays: null         // Used by addMarkedSpan
	};
	pushOperation(cm.curOp);
	}

	// Finish an operation, updating the display and signalling delayed events
	function endOperation(cm) {
	var op = cm.curOp;
	if (op) { finishOperation(op, function (group) {
		for (var i = 0; i < group.ops.length; i++)
		{ group.ops[i].cm.curOp = null; }
		endOperations(group);
	}); }
	}

	// The DOM updates done when an operation finishes are batched so
	// that the minimum number of relayouts are required.
	function endOperations(group) {
	var ops = group.ops;
	for (var i = 0; i < ops.length; i++) // Read DOM
		{ endOperation_R1(ops[i]); }
	for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
		{ endOperation_W1(ops[i$1]); }
	for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
		{ endOperation_R2(ops[i$2]); }
	for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
		{ endOperation_W2(ops[i$3]); }
	for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
		{ endOperation_finish(ops[i$4]); }
	}

	function endOperation_R1(op) {
	var cm = op.cm, display = cm.display;
	maybeClipScrollbars(cm);
	if (op.updateMaxLine) { findMaxLine(cm); }

	op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
		op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
						op.scrollToPos.to.line >= display.viewTo) ||
		display.maxLineChanged && cm.options.lineWrapping;
	op.update = op.mustUpdate &&
		new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
	}

	function endOperation_W1(op) {
	op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
	}

	function endOperation_R2(op) {
	var cm = op.cm, display = cm.display;
	if (op.updatedDisplay) { updateHeightsInViewport(cm); }

	op.barMeasure = measureForScrollbars(cm);

	// If the max line changed since it was last measured, measure it,
	// and ensure the document's width matches it.
	// updateDisplay_W2 will use these properties to do the actual resizing
	if (display.maxLineChanged && !cm.options.lineWrapping) {
		op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
		cm.display.sizerWidth = op.adjustWidthTo;
		op.barMeasure.scrollWidth =
		Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
		op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
	}

	if (op.updatedDisplay || op.selectionChanged)
		{ op.preparedSelection = display.input.prepareSelection(); }
	}

	function endOperation_W2(op) {
	var cm = op.cm;

	if (op.adjustWidthTo != null) {
		cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
		if (op.maxScrollLeft < cm.doc.scrollLeft)
		{ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
		cm.display.maxLineChanged = false;
	}

	var takeFocus = op.focus && op.focus == activeElt(doc(cm));
	if (op.preparedSelection)
		{ cm.display.input.showSelection(op.preparedSelection, takeFocus); }
	if (op.updatedDisplay || op.startHeight != cm.doc.height)
		{ updateScrollbars(cm, op.barMeasure); }
	if (op.updatedDisplay)
		{ setDocumentHeight(cm, op.barMeasure); }

	if (op.selectionChanged) { restartBlink(cm); }

	if (cm.state.focused && op.updateInput)
		{ cm.display.input.reset(op.typing); }
	if (takeFocus) { ensureFocus(op.cm); }
	}

	function endOperation_finish(op) {
	var cm = op.cm, display = cm.display, doc = cm.doc;

	if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }

	// Abort mouse wheel delta measurement, when scrolling explicitly
	if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
		{ display.wheelStartX = display.wheelStartY = null; }

	// Propagate the scroll position to the actual DOM scroller
	if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }

	if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
	// If we need to scroll a specific position into view, do so.
	if (op.scrollToPos) {
		var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
									clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
		maybeScrollWindow(cm, rect);
	}

	// Fire events for markers that are hidden/unidden by editing or
	// undoing
	var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
	if (hidden) { for (var i = 0; i < hidden.length; ++i)
		{ if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
	if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
		{ if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }

	if (display.wrapper.offsetHeight)
		{ doc.scrollTop = cm.display.scroller.scrollTop; }

	// Fire change events, and delayed event handlers
	if (op.changeObjs)
		{ signal(cm, "changes", cm, op.changeObjs); }
	if (op.update)
		{ op.update.finish(); }
	}

	// Run the given function in an operation
	function runInOp(cm, f) {
	if (cm.curOp) { return f() }
	startOperation(cm);
	try { return f() }
	finally { endOperation(cm); }
	}
	// Wraps a function in an operation. Returns the wrapped function.
	function operation(cm, f) {
	return function() {
		if (cm.curOp) { return f.apply(cm, arguments) }
		startOperation(cm);
		try { return f.apply(cm, arguments) }
		finally { endOperation(cm); }
	}
	}
	// Used to add methods to editor and doc instances, wrapping them in
	// operations.
	function methodOp(f) {
	return function() {
		if (this.curOp) { return f.apply(this, arguments) }
		startOperation(this);
		try { return f.apply(this, arguments) }
		finally { endOperation(this); }
	}
	}
	function docMethodOp(f) {
	return function() {
		var cm = this.cm;
		if (!cm || cm.curOp) { return f.apply(this, arguments) }
		startOperation(cm);
		try { return f.apply(this, arguments) }
		finally { endOperation(cm); }
	}
	}

	// HIGHLIGHT WORKER

	function startWorker(cm, time) {
	if (cm.doc.highlightFrontier < cm.display.viewTo)
		{ cm.state.highlight.set(time, bind(highlightWorker, cm)); }
	}

	function highlightWorker(cm) {
	var doc = cm.doc;
	if (doc.highlightFrontier >= cm.display.viewTo) { return }
	var end = +new Date + cm.options.workTime;
	var context = getContextBefore(cm, doc.highlightFrontier);
	var changedLines = [];

	doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
		if (context.line >= cm.display.viewFrom) { // Visible
		var oldStyles = line.styles;
		var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
		var highlighted = highlightLine(cm, line, context, true);
		if (resetState) { context.state = resetState; }
		line.styles = highlighted.styles;
		var oldCls = line.styleClasses, newCls = highlighted.classes;
		if (newCls) { line.styleClasses = newCls; }
		else if (oldCls) { line.styleClasses = null; }
		var ischange = !oldStyles || oldStyles.length != line.styles.length ||
			oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
		for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
		if (ischange) { changedLines.push(context.line); }
		line.stateAfter = context.save();
		context.nextLine();
		} else {
		if (line.text.length <= cm.options.maxHighlightLength)
			{ processLine(cm, line.text, context); }
		line.stateAfter = context.line % 5 == 0 ? context.save() : null;
		context.nextLine();
		}
		if (+new Date > end) {
		startWorker(cm, cm.options.workDelay);
		return true
		}
	});
	doc.highlightFrontier = context.line;
	doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
	if (changedLines.length) { runInOp(cm, function () {
		for (var i = 0; i < changedLines.length; i++)
		{ regLineChange(cm, changedLines[i], "text"); }
	}); }
	}

	// DISPLAY DRAWING

	var DisplayUpdate = function(cm, viewport, force) {
	var display = cm.display;

	this.viewport = viewport;
	// Store some values that we'll need later (but don't want to force a relayout for)
	this.visible = visibleLines(display, cm.doc, viewport);
	this.editorIsHidden = !display.wrapper.offsetWidth;
	this.wrapperHeight = display.wrapper.clientHeight;
	this.wrapperWidth = display.wrapper.clientWidth;
	this.oldDisplayWidth = displayWidth(cm);
	this.force = force;
	this.dims = getDimensions(cm);
	this.events = [];
	};

	DisplayUpdate.prototype.signal = function (emitter, type) {
	if (hasHandler(emitter, type))
		{ this.events.push(arguments); }
	};
	DisplayUpdate.prototype.finish = function () {
	for (var i = 0; i < this.events.length; i++)
		{ signal.apply(null, this.events[i]); }
	};

	function maybeClipScrollbars(cm) {
	var display = cm.display;
	if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
		display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
		display.heightForcer.style.height = scrollGap(cm) + "px";
		display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
		display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
		display.scrollbarsClipped = true;
	}
	}

	function selectionSnapshot(cm) {
	if (cm.hasFocus()) { return null }
	var active = activeElt(doc(cm));
	if (!active || !contains(cm.display.lineDiv, active)) { return null }
	var result = {activeElt: active};
	if (window.getSelection) {
		var sel = win(cm).getSelection();
		if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
		result.anchorNode = sel.anchorNode;
		result.anchorOffset = sel.anchorOffset;
		result.focusNode = sel.focusNode;
		result.focusOffset = sel.focusOffset;
		}
	}
	return result
	}

	function restoreSelection(snapshot) {
	if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt(snapshot.activeElt.ownerDocument)) { return }
	snapshot.activeElt.focus();
	if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) &&
		snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
		var doc = snapshot.activeElt.ownerDocument;
		var sel = doc.defaultView.getSelection(), range = doc.createRange();
		range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
		range.collapse(false);
		sel.removeAllRanges();
		sel.addRange(range);
		sel.extend(snapshot.focusNode, snapshot.focusOffset);
	}
	}

	// Does the actual updating of the line display. Bails out
	// (returning false) when there is nothing to be done and forced is
	// false.
	function updateDisplayIfNeeded(cm, update) {
	var display = cm.display, doc = cm.doc;

	if (update.editorIsHidden) {
		resetView(cm);
		return false
	}

	// Bail out if the visible area is already rendered and nothing changed.
	if (!update.force &&
		update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
		(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
		display.renderedView == display.view && countDirtyView(cm) == 0)
		{ return false }

	if (maybeUpdateLineNumberWidth(cm)) {
		resetView(cm);
		update.dims = getDimensions(cm);
	}

	// Compute a suitable new viewport (from & to)
	var end = doc.first + doc.size;
	var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
	var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
	if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
	if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
	if (sawCollapsedSpans) {
		from = visualLineNo(cm.doc, from);
		to = visualLineEndNo(cm.doc, to);
	}

	var different = from != display.viewFrom || to != display.viewTo ||
		display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
	adjustView(cm, from, to);

	display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
	// Position the mover div to align with the current scroll position
	cm.display.mover.style.top = display.viewOffset + "px";

	var toUpdate = countDirtyView(cm);
	if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
		(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
		{ return false }

	// For big changes, we hide the enclosing element during the
	// update, since that speeds up the operations on most browsers.
	var selSnapshot = selectionSnapshot(cm);
	if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
	patchDisplay(cm, display.updateLineNumbers, update.dims);
	if (toUpdate > 4) { display.lineDiv.style.display = ""; }
	display.renderedView = display.view;
	// There might have been a widget with a focused element that got
	// hidden or updated, if so re-focus it.
	restoreSelection(selSnapshot);

	// Prevent selection and cursors from interfering with the scroll
	// width and height.
	removeChildren(display.cursorDiv);
	removeChildren(display.selectionDiv);
	display.gutters.style.height = display.sizer.style.minHeight = 0;

	if (different) {
		display.lastWrapHeight = update.wrapperHeight;
		display.lastWrapWidth = update.wrapperWidth;
		startWorker(cm, 400);
	}

	display.updateLineNumbers = null;

	return true
	}

	function postUpdateDisplay(cm, update) {
	var viewport = update.viewport;

	for (var first = true;; first = false) {
		if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
		// Clip forced viewport to actual scrollable area.
		if (viewport && viewport.top != null)
			{ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
		// Updated line heights might result in the drawn area not
		// actually covering the viewport. Keep looping until it does.
		update.visible = visibleLines(cm.display, cm.doc, viewport);
		if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
			{ break }
		} else if (first) {
		update.visible = visibleLines(cm.display, cm.doc, viewport);
		}
		if (!updateDisplayIfNeeded(cm, update)) { break }
		updateHeightsInViewport(cm);
		var barMeasure = measureForScrollbars(cm);
		updateSelection(cm);
		updateScrollbars(cm, barMeasure);
		setDocumentHeight(cm, barMeasure);
		update.force = false;
	}

	update.signal(cm, "update", cm);
	if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
		update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
		cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
	}
	}

	function updateDisplaySimple(cm, viewport) {
	var update = new DisplayUpdate(cm, viewport);
	if (updateDisplayIfNeeded(cm, update)) {
		updateHeightsInViewport(cm);
		postUpdateDisplay(cm, update);
		var barMeasure = measureForScrollbars(cm);
		updateSelection(cm);
		updateScrollbars(cm, barMeasure);
		setDocumentHeight(cm, barMeasure);
		update.finish();
	}
	}

	// Sync the actual display DOM structure with display.view, removing
	// nodes for lines that are no longer in view, and creating the ones
	// that are not there yet, and updating the ones that are out of
	// date.
	function patchDisplay(cm, updateNumbersFrom, dims) {
	var display = cm.display, lineNumbers = cm.options.lineNumbers;
	var container = display.lineDiv, cur = container.firstChild;

	function rm(node) {
		var next = node.nextSibling;
		// Works around a throw-scroll bug in OS X Webkit
		if (webkit && mac && cm.display.currentWheelTarget == node)
		{ node.style.display = "none"; }
		else
		{ node.parentNode.removeChild(node); }
		return next
	}

	var view = display.view, lineN = display.viewFrom;
	// Loop over the elements in the view, syncing cur (the DOM nodes
	// in display.lineDiv) with the view as we go.
	for (var i = 0; i < view.length; i++) {
		var lineView = view[i];
		if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
		var node = buildLineElement(cm, lineView, lineN, dims);
		container.insertBefore(node, cur);
		} else { // Already drawn
		while (cur != lineView.node) { cur = rm(cur); }
		var updateNumber = lineNumbers && updateNumbersFrom != null &&
			updateNumbersFrom <= lineN && lineView.lineNumber;
		if (lineView.changes) {
			if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
			updateLineForChanges(cm, lineView, lineN, dims);
		}
		if (updateNumber) {
			removeChildren(lineView.lineNumber);
			lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
		}
		cur = lineView.node.nextSibling;
		}
		lineN += lineView.size;
	}
	while (cur) { cur = rm(cur); }
	}

	function updateGutterSpace(display) {
	var width = display.gutters.offsetWidth;
	display.sizer.style.marginLeft = width + "px";
	// Send an event to consumers responding to changes in gutter width.
	signalLater(display, "gutterChanged", display);
	}

	function setDocumentHeight(cm, measure) {
	cm.display.sizer.style.minHeight = measure.docHeight + "px";
	cm.display.heightForcer.style.top = measure.docHeight + "px";
	cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
	}

	// Re-align line numbers and gutter marks to compensate for
	// horizontal scrolling.
	function alignHorizontally(cm) {
	var display = cm.display, view = display.view;
	if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
	var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
	var gutterW = display.gutters.offsetWidth, left = comp + "px";
	for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
		if (cm.options.fixedGutter) {
		if (view[i].gutter)
			{ view[i].gutter.style.left = left; }
		if (view[i].gutterBackground)
			{ view[i].gutterBackground.style.left = left; }
		}
		var align = view[i].alignable;
		if (align) { for (var j = 0; j < align.length; j++)
		{ align[j].style.left = left; } }
	} }
	if (cm.options.fixedGutter)
		{ display.gutters.style.left = (comp + gutterW) + "px"; }
	}

	// Used to ensure that the line number gutter is still the right
	// size for the current document size. Returns true when an update
	// is needed.
	function maybeUpdateLineNumberWidth(cm) {
	if (!cm.options.lineNumbers) { return false }
	var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
	if (last.length != display.lineNumChars) {
		var test = display.measure.appendChild(elt("div", [elt("div", last)],
												"CodeMirror-linenumber CodeMirror-gutter-elt"));
		var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
		display.lineGutter.style.width = "";
		display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
		display.lineNumWidth = display.lineNumInnerWidth + padding;
		display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
		display.lineGutter.style.width = display.lineNumWidth + "px";
		updateGutterSpace(cm.display);
		return true
	}
	return false
	}

	function getGutters(gutters, lineNumbers) {
	var result = [], sawLineNumbers = false;
	for (var i = 0; i < gutters.length; i++) {
		var name = gutters[i], style = null;
		if (typeof name != "string") { style = name.style; name = name.className; }
		if (name == "CodeMirror-linenumbers") {
		if (!lineNumbers) { continue }
		else { sawLineNumbers = true; }
		}
		result.push({className: name, style: style});
	}
	if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); }
	return result
	}

	// Rebuild the gutter elements, ensure the margin to the left of the
	// code matches their width.
	function renderGutters(display) {
	var gutters = display.gutters, specs = display.gutterSpecs;
	removeChildren(gutters);
	display.lineGutter = null;
	for (var i = 0; i < specs.length; ++i) {
		var ref = specs[i];
		var className = ref.className;
		var style = ref.style;
		var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className));
		if (style) { gElt.style.cssText = style; }
		if (className == "CodeMirror-linenumbers") {
		display.lineGutter = gElt;
		gElt.style.width = (display.lineNumWidth || 1) + "px";
		}
	}
	gutters.style.display = specs.length ? "" : "none";
	updateGutterSpace(display);
	}

	function updateGutters(cm) {
	renderGutters(cm.display);
	regChange(cm);
	alignHorizontally(cm);
	}

	// The display handles the DOM integration, both for input reading
	// and content drawing. It holds references to DOM nodes and
	// display-related state.

	function Display(place, doc, input, options) {
	var d = this;
	this.input = input;

	// Covers bottom-right square when both scrollbars are present.
	d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
	d.scrollbarFiller.setAttribute("cm-not-content", "true");
	// Covers bottom of gutter when coverGutterNextToScrollbar is on
	// and h scrollbar is present.
	d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
	d.gutterFiller.setAttribute("cm-not-content", "true");
	// Will contain the actual code, positioned to cover the viewport.
	d.lineDiv = eltP("div", null, "CodeMirror-code");
	// Elements are added to these to represent selection and cursors.
	d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
	d.cursorDiv = elt("div", null, "CodeMirror-cursors");
	// A visibility: hidden element used to find the size of things.
	d.measure = elt("div", null, "CodeMirror-measure");
	// When lines outside of the viewport are measured, they are drawn in this.
	d.lineMeasure = elt("div", null, "CodeMirror-measure");
	// Wraps everything that needs to exist inside the vertically-padded coordinate system
	d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
						null, "position: relative; outline: none");
	var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
	// Moved around its parent to cover visible view.
	d.mover = elt("div", [lines], null, "position: relative");
	// Set to the height of the document, allowing scrolling.
	d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
	d.sizerWidth = null;
	// Behavior of elts with overflow: auto and padding is
	// inconsistent across browsers. This is used to ensure the
	// scrollable area is big enough.
	d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
	// Will contain the gutters, if any.
	d.gutters = elt("div", null, "CodeMirror-gutters");
	d.lineGutter = null;
	// Actual scrollable element.
	d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
	d.scroller.setAttribute("tabIndex", "-1");
	// The element in which the editor lives.
	d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
	// See #6982. FIXME remove when this has been fixed for a while in Chrome
	if (chrome && chrome_version >= 105) { d.wrapper.style.clipPath = "inset(0px)"; }

	// This attribute is respected by automatic translation systems such as Google Translate,
	// and may also be respected by tools used by human translators.
	d.wrapper.setAttribute('translate', 'no');

	// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
	if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
	if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }

	if (place) {
		if (place.appendChild) { place.appendChild(d.wrapper); }
		else { place(d.wrapper); }
	}

	// Current rendered range (may be bigger than the view window).
	d.viewFrom = d.viewTo = doc.first;
	d.reportedViewFrom = d.reportedViewTo = doc.first;
	// Information about the rendered lines.
	d.view = [];
	d.renderedView = null;
	// Holds info about a single rendered line when it was rendered
	// for measurement, while not in view.
	d.externalMeasured = null;
	// Empty space (in pixels) above the view
	d.viewOffset = 0;
	d.lastWrapHeight = d.lastWrapWidth = 0;
	d.updateLineNumbers = null;

	d.nativeBarWidth = d.barHeight = d.barWidth = 0;
	d.scrollbarsClipped = false;

	// Used to only resize the line number gutter when necessary (when
	// the amount of lines crosses a boundary that makes its width change)
	d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
	// Set to true when a non-horizontal-scrolling line widget is
	// added. As an optimization, line widget aligning is skipped when
	// this is false.
	d.alignWidgets = false;

	d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;

	// Tracks the maximum line length so that the horizontal scrollbar
	// can be kept static when scrolling.
	d.maxLine = null;
	d.maxLineLength = 0;
	d.maxLineChanged = false;

	// Used for measuring wheel scrolling granularity
	d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;

	// True when shift is held down.
	d.shift = false;

	// Used to track whether anything happened since the context menu
	// was opened.
	d.selForContextMenu = null;

	d.activeTouch = null;

	d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);
	renderGutters(d);

	input.init(d);
	}

	// Since the delta values reported on mouse wheel events are
	// unstandardized between browsers and even browser versions, and
	// generally horribly unpredictable, this code starts by measuring
	// the scroll effect that the first few mouse wheel events have,
	// and, from that, detects the way it can convert deltas to pixel
	// offsets afterwards.
	//
	// The reason we want to know the amount a wheel event will scroll
	// is that it gives us a chance to update the display before the
	// actual scrolling happens, reducing flickering.

	var wheelSamples = 0, wheelPixelsPerUnit = null;
	// Fill in a browser-detected starting value on browsers where we
	// know one. These don't have to be accurate -- the result of them
	// being wrong would just be a slight flicker on the first wheel
	// scroll (if it is large enough).
	if (ie) { wheelPixelsPerUnit = -.53; }
	else if (gecko) { wheelPixelsPerUnit = 15; }
	else if (chrome) { wheelPixelsPerUnit = -.7; }
	else if (safari) { wheelPixelsPerUnit = -1/3; }

	function wheelEventDelta(e) {
	var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
	if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
	if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
	else if (dy == null) { dy = e.wheelDelta; }
	return {x: dx, y: dy}
	}
	function wheelEventPixels(e) {
	var delta = wheelEventDelta(e);
	delta.x *= wheelPixelsPerUnit;
	delta.y *= wheelPixelsPerUnit;
	return delta
	}

	function onScrollWheel(cm, e) {
	// On Chrome 102, viewport updates somehow stop wheel-based
	// scrolling. Turning off pointer events during the scroll seems
	// to avoid the issue.
	if (chrome && chrome_version == 102) {
		if (cm.display.chromeScrollHack == null) { cm.display.sizer.style.pointerEvents = "none"; }
		else { clearTimeout(cm.display.chromeScrollHack); }
		cm.display.chromeScrollHack = setTimeout(function () {
		cm.display.chromeScrollHack = null;
		cm.display.sizer.style.pointerEvents = "";
		}, 100);
	}
	var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
	var pixelsPerUnit = wheelPixelsPerUnit;
	if (e.deltaMode === 0) {
		dx = e.deltaX;
		dy = e.deltaY;
		pixelsPerUnit = 1;
	}

	var display = cm.display, scroll = display.scroller;
	// Quit if there's nothing to scroll here
	var canScrollX = scroll.scrollWidth > scroll.clientWidth;
	var canScrollY = scroll.scrollHeight > scroll.clientHeight;
	if (!(dx && canScrollX || dy && canScrollY)) { return }

	// Webkit browsers on OS X abort momentum scrolls when the target
	// of the scroll event is removed from the scrollable element.
	// This hack (see related code in patchDisplay) makes sure the
	// element is kept around.
	if (dy && mac && webkit) {
		outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
		for (var i = 0; i < view.length; i++) {
			if (view[i].node == cur) {
			cm.display.currentWheelTarget = cur;
			break outer
			}
		}
		}
	}

	// On some browsers, horizontal scrolling will cause redraws to
	// happen before the gutter has been realigned, causing it to
	// wriggle around in a most unseemly way. When we have an
	// estimated pixels/delta value, we just handle horizontal
	// scrolling entirely here. It'll be slightly off from native, but
	// better than glitching out.
	if (dx && !gecko && !presto && pixelsPerUnit != null) {
		if (dy && canScrollY)
		{ updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * pixelsPerUnit)); }
		setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * pixelsPerUnit));
		// Only prevent default scrolling if vertical scrolling is
		// actually possible. Otherwise, it causes vertical scroll
		// jitter on OSX trackpads when deltaX is small and deltaY
		// is large (issue #3579)
		if (!dy || (dy && canScrollY))
		{ e_preventDefault(e); }
		display.wheelStartX = null; // Abort measurement, if in progress
		return
	}

	// 'Project' the visible viewport to cover the area that is being
	// scrolled into view (if we know enough to estimate it).
	if (dy && pixelsPerUnit != null) {
		var pixels = dy * pixelsPerUnit;
		var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
		if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
		else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
		updateDisplaySimple(cm, {top: top, bottom: bot});
	}

	if (wheelSamples < 20 && e.deltaMode !== 0) {
		if (display.wheelStartX == null) {
		display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
		display.wheelDX = dx; display.wheelDY = dy;
		setTimeout(function () {
			if (display.wheelStartX == null) { return }
			var movedX = scroll.scrollLeft - display.wheelStartX;
			var movedY = scroll.scrollTop - display.wheelStartY;
			var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
			(movedX && display.wheelDX && movedX / display.wheelDX);
			display.wheelStartX = display.wheelStartY = null;
			if (!sample) { return }
			wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
			++wheelSamples;
		}, 200);
		} else {
		display.wheelDX += dx; display.wheelDY += dy;
		}
	}
	}

	// Selection objects are immutable. A new one is created every time
	// the selection changes. A selection is one or more non-overlapping
	// (and non-touching) ranges, sorted, and an integer that indicates
	// which one is the primary selection (the one that's scrolled into
	// view, that getCursor returns, etc).
	var Selection = function(ranges, primIndex) {
	this.ranges = ranges;
	this.primIndex = primIndex;
	};

	Selection.prototype.primary = function () { return this.ranges[this.primIndex] };

	Selection.prototype.equals = function (other) {
	if (other == this) { return true }
	if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
	for (var i = 0; i < this.ranges.length; i++) {
		var here = this.ranges[i], there = other.ranges[i];
		if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
	}
	return true
	};

	Selection.prototype.deepCopy = function () {
	var out = [];
	for (var i = 0; i < this.ranges.length; i++)
		{ out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }
	return new Selection(out, this.primIndex)
	};

	Selection.prototype.somethingSelected = function () {
	for (var i = 0; i < this.ranges.length; i++)
		{ if (!this.ranges[i].empty()) { return true } }
	return false
	};

	Selection.prototype.contains = function (pos, end) {
	if (!end) { end = pos; }
	for (var i = 0; i < this.ranges.length; i++) {
		var range = this.ranges[i];
		if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
		{ return i }
	}
	return -1
	};

	var Range = function(anchor, head) {
	this.anchor = anchor; this.head = head;
	};

	Range.prototype.from = function () { return minPos(this.anchor, this.head) };
	Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
	Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };

	// Take an unsorted, potentially overlapping set of ranges, and
	// build a selection out of it. 'Consumes' ranges array (modifying
	// it).
	function normalizeSelection(cm, ranges, primIndex) {
	var mayTouch = cm && cm.options.selectionsMayTouch;
	var prim = ranges[primIndex];
	ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
	primIndex = indexOf(ranges, prim);
	for (var i = 1; i < ranges.length; i++) {
		var cur = ranges[i], prev = ranges[i - 1];
		var diff = cmp(prev.to(), cur.from());
		if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
		var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
		var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
		if (i <= primIndex) { --primIndex; }
		ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
		}
	}
	return new Selection(ranges, primIndex)
	}

	function simpleSelection(anchor, head) {
	return new Selection([new Range(anchor, head || anchor)], 0)
	}

	// Compute the position of the end of a change (its 'to' property
	// refers to the pre-change end).
	function changeEnd(change) {
	if (!change.text) { return change.to }
	return Pos(change.from.line + change.text.length - 1,
				lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
	}

	// Adjust a position to refer to the post-change position of the
	// same text, or the end of the change if the change covers it.
	function adjustForChange(pos, change) {
	if (cmp(pos, change.from) < 0) { return pos }
	if (cmp(pos, change.to) <= 0) { return changeEnd(change) }

	var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
	if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
	return Pos(line, ch)
	}

	function computeSelAfterChange(doc, change) {
	var out = [];
	for (var i = 0; i < doc.sel.ranges.length; i++) {
		var range = doc.sel.ranges[i];
		out.push(new Range(adjustForChange(range.anchor, change),
						adjustForChange(range.head, change)));
	}
	return normalizeSelection(doc.cm, out, doc.sel.primIndex)
	}

	function offsetPos(pos, old, nw) {
	if (pos.line == old.line)
		{ return Pos(nw.line, pos.ch - old.ch + nw.ch) }
	else
		{ return Pos(nw.line + (pos.line - old.line), pos.ch) }
	}

	// Used by replaceSelections to allow moving the selection to the
	// start or around the replaced test. Hint may be "start" or "around".
	function computeReplacedSel(doc, changes, hint) {
	var out = [];
	var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
	for (var i = 0; i < changes.length; i++) {
		var change = changes[i];
		var from = offsetPos(change.from, oldPrev, newPrev);
		var to = offsetPos(changeEnd(change), oldPrev, newPrev);
		oldPrev = change.to;
		newPrev = to;
		if (hint == "around") {
		var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
		out[i] = new Range(inv ? to : from, inv ? from : to);
		} else {
		out[i] = new Range(from, from);
		}
	}
	return new Selection(out, doc.sel.primIndex)
	}

	// Used to get the editor into a consistent state again when options change.

	function loadMode(cm) {
	cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
	resetModeState(cm);
	}

	function resetModeState(cm) {
	cm.doc.iter(function (line) {
		if (line.stateAfter) { line.stateAfter = null; }
		if (line.styles) { line.styles = null; }
	});
	cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
	startWorker(cm, 100);
	cm.state.modeGen++;
	if (cm.curOp) { regChange(cm); }
	}

	// DOCUMENT DATA STRUCTURE

	// By default, updates that start and end at the beginning of a line
	// are treated specially, in order to make the association of line
	// widgets and marker elements with the text behave more intuitive.
	function isWholeLineUpdate(doc, change) {
	return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
		(!doc.cm || doc.cm.options.wholeLineUpdateBefore)
	}

	// Perform a change on the document data structure.
	function updateDoc(doc, change, markedSpans, estimateHeight) {
	function spansFor(n) {return markedSpans ? markedSpans[n] : null}
	function update(line, text, spans) {
		updateLine(line, text, spans, estimateHeight);
		signalLater(line, "change", line, change);
	}
	function linesFor(start, end) {
		var result = [];
		for (var i = start; i < end; ++i)
		{ result.push(new Line(text[i], spansFor(i), estimateHeight)); }
		return result
	}

	var from = change.from, to = change.to, text = change.text;
	var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
	var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;

	// Adjust the line structure
	if (change.full) {
		doc.insert(0, linesFor(0, text.length));
		doc.remove(text.length, doc.size - text.length);
	} else if (isWholeLineUpdate(doc, change)) {
		// This is a whole-line replace. Treated specially to make
		// sure line objects move the way they are supposed to.
		var added = linesFor(0, text.length - 1);
		update(lastLine, lastLine.text, lastSpans);
		if (nlines) { doc.remove(from.line, nlines); }
		if (added.length) { doc.insert(from.line, added); }
	} else if (firstLine == lastLine) {
		if (text.length == 1) {
		update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
		} else {
		var added$1 = linesFor(1, text.length - 1);
		added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
		update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
		doc.insert(from.line + 1, added$1);
		}
	} else if (text.length == 1) {
		update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
		doc.remove(from.line + 1, nlines);
	} else {
		update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
		update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
		var added$2 = linesFor(1, text.length - 1);
		if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
		doc.insert(from.line + 1, added$2);
	}

	signalLater(doc, "change", doc, change);
	}

	// Call f for all linked documents.
	function linkedDocs(doc, f, sharedHistOnly) {
	function propagate(doc, skip, sharedHist) {
		if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
		var rel = doc.linked[i];
		if (rel.doc == skip) { continue }
		var shared = sharedHist && rel.sharedHist;
		if (sharedHistOnly && !shared) { continue }
		f(rel.doc, shared);
		propagate(rel.doc, doc, shared);
		} }
	}
	propagate(doc, null, true);
	}

	// Attach a document to an editor.
	function attachDoc(cm, doc) {
	if (doc.cm) { throw new Error("This document is already in use.") }
	cm.doc = doc;
	doc.cm = cm;
	estimateLineHeights(cm);
	loadMode(cm);
	setDirectionClass(cm);
	cm.options.direction = doc.direction;
	if (!cm.options.lineWrapping) { findMaxLine(cm); }
	cm.options.mode = doc.modeOption;
	regChange(cm);
	}

	function setDirectionClass(cm) {
	(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
	}

	function directionChanged(cm) {
	runInOp(cm, function () {
		setDirectionClass(cm);
		regChange(cm);
	});
	}

	function History(prev) {
	// Arrays of change events and selections. Doing something adds an
	// event to done and clears undo. Undoing moves events from done
	// to undone, redoing moves them in the other direction.
	this.done = []; this.undone = [];
	this.undoDepth = prev ? prev.undoDepth : Infinity;
	// Used to track when changes can be merged into a single undo
	// event
	this.lastModTime = this.lastSelTime = 0;
	this.lastOp = this.lastSelOp = null;
	this.lastOrigin = this.lastSelOrigin = null;
	// Used by the isClean() method
	this.generation = this.maxGeneration = prev ? prev.maxGeneration : 1;
	}

	// Create a history change event from an updateDoc-style change
	// object.
	function historyChangeFromChange(doc, change) {
	var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
	attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
	linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
	return histChange
	}

	// Pop all selection events off the end of a history array. Stop at
	// a change event.
	function clearSelectionEvents(array) {
	while (array.length) {
		var last = lst(array);
		if (last.ranges) { array.pop(); }
		else { break }
	}
	}

	// Find the top change event in the history. Pop off selection
	// events that are in the way.
	function lastChangeEvent(hist, force) {
	if (force) {
		clearSelectionEvents(hist.done);
		return lst(hist.done)
	} else if (hist.done.length && !lst(hist.done).ranges) {
		return lst(hist.done)
	} else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
		hist.done.pop();
		return lst(hist.done)
	}
	}

	// Register a change in the history. Merges changes that are within
	// a single operation, or are close together with an origin that
	// allows merging (starting with "+") into a single event.
	function addChangeToHistory(doc, change, selAfter, opId) {
	var hist = doc.history;
	hist.undone.length = 0;
	var time = +new Date, cur;
	var last;

	if ((hist.lastOp == opId ||
		hist.lastOrigin == change.origin && change.origin &&
		((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
			change.origin.charAt(0) == "*")) &&
		(cur = lastChangeEvent(hist, hist.lastOp == opId))) {
		// Merge this change into the last event
		last = lst(cur.changes);
		if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
		// Optimized case for simple insertion -- don't want to add
		// new changesets for every character typed
		last.to = changeEnd(change);
		} else {
		// Add new sub-event
		cur.changes.push(historyChangeFromChange(doc, change));
		}
	} else {
		// Can not be merged, start a new event.
		var before = lst(hist.done);
		if (!before || !before.ranges)
		{ pushSelectionToHistory(doc.sel, hist.done); }
		cur = {changes: [historyChangeFromChange(doc, change)],
			generation: hist.generation};
		hist.done.push(cur);
		while (hist.done.length > hist.undoDepth) {
		hist.done.shift();
		if (!hist.done[0].ranges) { hist.done.shift(); }
		}
	}
	hist.done.push(selAfter);
	hist.generation = ++hist.maxGeneration;
	hist.lastModTime = hist.lastSelTime = time;
	hist.lastOp = hist.lastSelOp = opId;
	hist.lastOrigin = hist.lastSelOrigin = change.origin;

	if (!last) { signal(doc, "historyAdded"); }
	}

	function selectionEventCanBeMerged(doc, origin, prev, sel) {
	var ch = origin.charAt(0);
	return ch == "*" ||
		ch == "+" &&
		prev.ranges.length == sel.ranges.length &&
		prev.somethingSelected() == sel.somethingSelected() &&
		new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
	}

	// Called whenever the selection changes, sets the new selection as
	// the pending selection in the history, and pushes the old pending
	// selection into the 'done' array when it was significantly
	// different (in number of selected ranges, emptiness, or time).
	function addSelectionToHistory(doc, sel, opId, options) {
	var hist = doc.history, origin = options && options.origin;

	// A new event is started when the previous origin does not match
	// the current, or the origins don't allow matching. Origins
	// starting with * are always merged, those starting with + are
	// merged when similar and close together in time.
	if (opId == hist.lastSelOp ||
		(origin && hist.lastSelOrigin == origin &&
		(hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
			selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
		{ hist.done[hist.done.length - 1] = sel; }
	else
		{ pushSelectionToHistory(sel, hist.done); }

	hist.lastSelTime = +new Date;
	hist.lastSelOrigin = origin;
	hist.lastSelOp = opId;
	if (options && options.clearRedo !== false)
		{ clearSelectionEvents(hist.undone); }
	}

	function pushSelectionToHistory(sel, dest) {
	var top = lst(dest);
	if (!(top && top.ranges && top.equals(sel)))
		{ dest.push(sel); }
	}

	// Used to store marked span information in the history.
	function attachLocalSpans(doc, change, from, to) {
	var existing = change["spans_" + doc.id], n = 0;
	doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
		if (line.markedSpans)
		{ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
		++n;
	});
	}

	// When un/re-doing restores text containing marked spans, those
	// that have been explicitly cleared should not be restored.
	function removeClearedSpans(spans) {
	if (!spans) { return null }
	var out;
	for (var i = 0; i < spans.length; ++i) {
		if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
		else if (out) { out.push(spans[i]); }
	}
	return !out ? spans : out.length ? out : null
	}

	// Retrieve and filter the old marked spans stored in a change event.
	function getOldSpans(doc, change) {
	var found = change["spans_" + doc.id];
	if (!found) { return null }
	var nw = [];
	for (var i = 0; i < change.text.length; ++i)
		{ nw.push(removeClearedSpans(found[i])); }
	return nw
	}

	// Used for un/re-doing changes from the history. Combines the
	// result of computing the existing spans with the set of spans that
	// existed in the history (so that deleting around a span and then
	// undoing brings back the span).
	function mergeOldSpans(doc, change) {
	var old = getOldSpans(doc, change);
	var stretched = stretchSpansOverChange(doc, change);
	if (!old) { return stretched }
	if (!stretched) { return old }

	for (var i = 0; i < old.length; ++i) {
		var oldCur = old[i], stretchCur = stretched[i];
		if (oldCur && stretchCur) {
		spans: for (var j = 0; j < stretchCur.length; ++j) {
			var span = stretchCur[j];
			for (var k = 0; k < oldCur.length; ++k)
			{ if (oldCur[k].marker == span.marker) { continue spans } }
			oldCur.push(span);
		}
		} else if (stretchCur) {
		old[i] = stretchCur;
		}
	}
	return old
	}

	// Used both to provide a JSON-safe object in .getHistory, and, when
	// detaching a document, to split the history in two
	function copyHistoryArray(events, newGroup, instantiateSel) {
	var copy = [];
	for (var i = 0; i < events.length; ++i) {
		var event = events[i];
		if (event.ranges) {
		copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
		continue
		}
		var changes = event.changes, newChanges = [];
		copy.push({changes: newChanges});
		for (var j = 0; j < changes.length; ++j) {
		var change = changes[j], m = (void 0);
		newChanges.push({from: change.from, to: change.to, text: change.text});
		if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
			if (indexOf(newGroup, Number(m[1])) > -1) {
			lst(newChanges)[prop] = change[prop];
			delete change[prop];
			}
		} } }
		}
	}
	return copy
	}

	// The 'scroll' parameter given to many of these indicated whether
	// the new cursor position should be scrolled into view after
	// modifying the selection.

	// If shift is held or the extend flag is set, extends a range to
	// include a given position (and optionally a second position).
	// Otherwise, simply returns the range between the given positions.
	// Used for cursor motion and such.
	function extendRange(range, head, other, extend) {
	if (extend) {
		var anchor = range.anchor;
		if (other) {
		var posBefore = cmp(head, anchor) < 0;
		if (posBefore != (cmp(other, anchor) < 0)) {
			anchor = head;
			head = other;
		} else if (posBefore != (cmp(head, other) < 0)) {
			head = other;
		}
		}
		return new Range(anchor, head)
	} else {
		return new Range(other || head, head)
	}
	}

	// Extend the primary selection range, discard the rest.
	function extendSelection(doc, head, other, options, extend) {
	if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
	setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
	}

	// Extend all selections (pos is an array of selections with length
	// equal the number of selections)
	function extendSelections(doc, heads, options) {
	var out = [];
	var extend = doc.cm && (doc.cm.display.shift || doc.extend);
	for (var i = 0; i < doc.sel.ranges.length; i++)
		{ out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
	var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
	setSelection(doc, newSel, options);
	}

	// Updates a single range in the selection.
	function replaceOneSelection(doc, i, range, options) {
	var ranges = doc.sel.ranges.slice(0);
	ranges[i] = range;
	setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
	}

	// Reset the selection to a single range.
	function setSimpleSelection(doc, anchor, head, options) {
	setSelection(doc, simpleSelection(anchor, head), options);
	}

	// Give beforeSelectionChange handlers a change to influence a
	// selection update.
	function filterSelectionChange(doc, sel, options) {
	var obj = {
		ranges: sel.ranges,
		update: function(ranges) {
		this.ranges = [];
		for (var i = 0; i < ranges.length; i++)
			{ this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
									clipPos(doc, ranges[i].head)); }
		},
		origin: options && options.origin
	};
	signal(doc, "beforeSelectionChange", doc, obj);
	if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
	if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
	else { return sel }
	}

	function setSelectionReplaceHistory(doc, sel, options) {
	var done = doc.history.done, last = lst(done);
	if (last && last.ranges) {
		done[done.length - 1] = sel;
		setSelectionNoUndo(doc, sel, options);
	} else {
		setSelection(doc, sel, options);
	}
	}

	// Set a new selection.
	function setSelection(doc, sel, options) {
	setSelectionNoUndo(doc, sel, options);
	addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
	}

	function setSelectionNoUndo(doc, sel, options) {
	if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
		{ sel = filterSelectionChange(doc, sel, options); }

	var bias = options && options.bias ||
		(cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
	setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));

	if (!(options && options.scroll === false) && doc.cm && doc.cm.getOption("readOnly") != "nocursor")
		{ ensureCursorVisible(doc.cm); }
	}

	function setSelectionInner(doc, sel) {
	if (sel.equals(doc.sel)) { return }

	doc.sel = sel;

	if (doc.cm) {
		doc.cm.curOp.updateInput = 1;
		doc.cm.curOp.selectionChanged = true;
		signalCursorActivity(doc.cm);
	}
	signalLater(doc, "cursorActivity", doc);
	}

	// Verify that the selection does not partially select any atomic
	// marked ranges.
	function reCheckSelection(doc) {
	setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
	}

	// Return a selection that does not partially select any atomic
	// ranges.
	function skipAtomicInSelection(doc, sel, bias, mayClear) {
	var out;
	for (var i = 0; i < sel.ranges.length; i++) {
		var range = sel.ranges[i];
		var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
		var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
		var newHead = range.head == range.anchor ? newAnchor : skipAtomic(doc, range.head, old && old.head, bias, mayClear);
		if (out || newAnchor != range.anchor || newHead != range.head) {
		if (!out) { out = sel.ranges.slice(0, i); }
		out[i] = new Range(newAnchor, newHead);
		}
	}
	return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
	}

	function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
	var line = getLine(doc, pos.line);
	if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
		var sp = line.markedSpans[i], m = sp.marker;

		// Determine if we should prevent the cursor being placed to the left/right of an atomic marker
		// Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
		// is with selectLeft/Right
		var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft;
		var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight;

		if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
			(sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
		if (mayClear) {
			signal(m, "beforeCursorEnter");
			if (m.explicitlyCleared) {
			if (!line.markedSpans) { break }
			else {--i; continue}
			}
		}
		if (!m.atomic) { continue }

		if (oldPos) {
			var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
			if (dir < 0 ? preventCursorRight : preventCursorLeft)
			{ near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
			if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
			{ return skipAtomicInner(doc, near, pos, dir, mayClear) }
		}

		var far = m.find(dir < 0 ? -1 : 1);
		if (dir < 0 ? preventCursorLeft : preventCursorRight)
			{ far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
		return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
		}
	} }
	return pos
	}

	// Ensure a given position is not inside an atomic range.
	function skipAtomic(doc, pos, oldPos, bias, mayClear) {
	var dir = bias || 1;
	var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
		(!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
		skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
		(!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
	if (!found) {
		doc.cantEdit = true;
		return Pos(doc.first, 0)
	}
	return found
	}

	function movePos(doc, pos, dir, line) {
	if (dir < 0 && pos.ch == 0) {
		if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
		else { return null }
	} else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
		if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
		else { return null }
	} else {
		return new Pos(pos.line, pos.ch + dir)
	}
	}

	function selectAll(cm) {
	cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
	}

	// UPDATING

	// Allow "beforeChange" event handlers to influence a change
	function filterChange(doc, change, update) {
	var obj = {
		canceled: false,
		from: change.from,
		to: change.to,
		text: change.text,
		origin: change.origin,
		cancel: function () { return obj.canceled = true; }
	};
	if (update) { obj.update = function (from, to, text, origin) {
		if (from) { obj.from = clipPos(doc, from); }
		if (to) { obj.to = clipPos(doc, to); }
		if (text) { obj.text = text; }
		if (origin !== undefined) { obj.origin = origin; }
	}; }
	signal(doc, "beforeChange", doc, obj);
	if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }

	if (obj.canceled) {
		if (doc.cm) { doc.cm.curOp.updateInput = 2; }
		return null
	}
	return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
	}

	// Apply a change to a document, and add it to the document's
	// history, and propagating it to all linked documents.
	function makeChange(doc, change, ignoreReadOnly) {
	if (doc.cm) {
		if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
		if (doc.cm.state.suppressEdits) { return }
	}

	if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
		change = filterChange(doc, change, true);
		if (!change) { return }
	}

	// Possibly split or suppress the update based on the presence
	// of read-only spans in its range.
	var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
	if (split) {
		for (var i = split.length - 1; i >= 0; --i)
		{ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
	} else {
		makeChangeInner(doc, change);
	}
	}

	function makeChangeInner(doc, change) {
	if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
	var selAfter = computeSelAfterChange(doc, change);
	addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);

	makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
	var rebased = [];

	linkedDocs(doc, function (doc, sharedHist) {
		if (!sharedHist && indexOf(rebased, doc.history) == -1) {
		rebaseHist(doc.history, change);
		rebased.push(doc.history);
		}
		makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
	});
	}

	// Revert a change stored in a document's history.
	function makeChangeFromHistory(doc, type, allowSelectionOnly) {
	var suppress = doc.cm && doc.cm.state.suppressEdits;
	if (suppress && !allowSelectionOnly) { return }

	var hist = doc.history, event, selAfter = doc.sel;
	var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;

	// Verify that there is a useable event (so that ctrl-z won't
	// needlessly clear selection events)
	var i = 0;
	for (; i < source.length; i++) {
		event = source[i];
		if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
		{ break }
	}
	if (i == source.length) { return }
	hist.lastOrigin = hist.lastSelOrigin = null;

	for (;;) {
		event = source.pop();
		if (event.ranges) {
		pushSelectionToHistory(event, dest);
		if (allowSelectionOnly && !event.equals(doc.sel)) {
			setSelection(doc, event, {clearRedo: false});
			return
		}
		selAfter = event;
		} else if (suppress) {
		source.push(event);
		return
		} else { break }
	}

	// Build up a reverse change object to add to the opposite history
	// stack (redo when undoing, and vice versa).
	var antiChanges = [];
	pushSelectionToHistory(selAfter, dest);
	dest.push({changes: antiChanges, generation: hist.generation});
	hist.generation = event.generation || ++hist.maxGeneration;

	var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");

	var loop = function ( i ) {
		var change = event.changes[i];
		change.origin = type;
		if (filter && !filterChange(doc, change, false)) {
		source.length = 0;
		return {}
		}

		antiChanges.push(historyChangeFromChange(doc, change));

		var after = i ? computeSelAfterChange(doc, change) : lst(source);
		makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
		if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
		var rebased = [];

		// Propagate to the linked documents
		linkedDocs(doc, function (doc, sharedHist) {
		if (!sharedHist && indexOf(rebased, doc.history) == -1) {
			rebaseHist(doc.history, change);
			rebased.push(doc.history);
		}
		makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
		});
	};

	for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
		var returned = loop( i$1 );

		if ( returned ) return returned.v;
	}
	}

	// Sub-views need their line numbers shifted when text is added
	// above or below them in the parent document.
	function shiftDoc(doc, distance) {
	if (distance == 0) { return }
	doc.first += distance;
	doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
		Pos(range.anchor.line + distance, range.anchor.ch),
		Pos(range.head.line + distance, range.head.ch)
	); }), doc.sel.primIndex);
	if (doc.cm) {
		regChange(doc.cm, doc.first, doc.first - distance, distance);
		for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
		{ regLineChange(doc.cm, l, "gutter"); }
	}
	}

	// More lower-level change function, handling only a single document
	// (not linked ones).
	function makeChangeSingleDoc(doc, change, selAfter, spans) {
	if (doc.cm && !doc.cm.curOp)
		{ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }

	if (change.to.line < doc.first) {
		shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
		return
	}
	if (change.from.line > doc.lastLine()) { return }

	// Clip the change to the size of this doc
	if (change.from.line < doc.first) {
		var shift = change.text.length - 1 - (doc.first - change.from.line);
		shiftDoc(doc, shift);
		change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
				text: [lst(change.text)], origin: change.origin};
	}
	var last = doc.lastLine();
	if (change.to.line > last) {
		change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
				text: [change.text[0]], origin: change.origin};
	}

	change.removed = getBetween(doc, change.from, change.to);

	if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
	if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
	else { updateDoc(doc, change, spans); }
	setSelectionNoUndo(doc, selAfter, sel_dontScroll);

	if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))
		{ doc.cantEdit = false; }
	}

	// Handle the interaction of a change to a document with the editor
	// that this document is part of.
	function makeChangeSingleDocInEditor(cm, change, spans) {
	var doc = cm.doc, display = cm.display, from = change.from, to = change.to;

	var recomputeMaxLength = false, checkWidthStart = from.line;
	if (!cm.options.lineWrapping) {
		checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
		doc.iter(checkWidthStart, to.line + 1, function (line) {
		if (line == display.maxLine) {
			recomputeMaxLength = true;
			return true
		}
		});
	}

	if (doc.sel.contains(change.from, change.to) > -1)
		{ signalCursorActivity(cm); }

	updateDoc(doc, change, spans, estimateHeight(cm));

	if (!cm.options.lineWrapping) {
		doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
		var len = lineLength(line);
		if (len > display.maxLineLength) {
			display.maxLine = line;
			display.maxLineLength = len;
			display.maxLineChanged = true;
			recomputeMaxLength = false;
		}
		});
		if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
	}

	retreatFrontier(doc, from.line);
	startWorker(cm, 400);

	var lendiff = change.text.length - (to.line - from.line) - 1;
	// Remember that these lines changed, for updating the display
	if (change.full)
		{ regChange(cm); }
	else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
		{ regLineChange(cm, from.line, "text"); }
	else
		{ regChange(cm, from.line, to.line + 1, lendiff); }

	var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
	if (changeHandler || changesHandler) {
		var obj = {
		from: from, to: to,
		text: change.text,
		removed: change.removed,
		origin: change.origin
		};
		if (changeHandler) { signalLater(cm, "change", cm, obj); }
		if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
	}
	cm.display.selForContextMenu = null;
	}

	function replaceRange(doc, code, from, to, origin) {
	var assign;

	if (!to) { to = from; }
	if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
	if (typeof code == "string") { code = doc.splitLines(code); }
	makeChange(doc, {from: from, to: to, text: code, origin: origin});
	}

	// Rebasing/resetting history to deal with externally-sourced changes

	function rebaseHistSelSingle(pos, from, to, diff) {
	if (to < pos.line) {
		pos.line += diff;
	} else if (from < pos.line) {
		pos.line = from;
		pos.ch = 0;
	}
	}

	// Tries to rebase an array of history events given a change in the
	// document. If the change touches the same lines as the event, the
	// event, and everything 'behind' it, is discarded. If the change is
	// before the event, the event's positions are updated. Uses a
	// copy-on-write scheme for the positions, to avoid having to
	// reallocate them all on every rebase, but also avoid problems with
	// shared position objects being unsafely updated.
	function rebaseHistArray(array, from, to, diff) {
	for (var i = 0; i < array.length; ++i) {
		var sub = array[i], ok = true;
		if (sub.ranges) {
		if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
		for (var j = 0; j < sub.ranges.length; j++) {
			rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
			rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
		}
		continue
		}
		for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
		var cur = sub.changes[j$1];
		if (to < cur.from.line) {
			cur.from = Pos(cur.from.line + diff, cur.from.ch);
			cur.to = Pos(cur.to.line + diff, cur.to.ch);
		} else if (from <= cur.to.line) {
			ok = false;
			break
		}
		}
		if (!ok) {
		array.splice(0, i + 1);
		i = 0;
		}
	}
	}

	function rebaseHist(hist, change) {
	var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
	rebaseHistArray(hist.done, from, to, diff);
	rebaseHistArray(hist.undone, from, to, diff);
	}

	// Utility for applying a change to a line by handle or number,
	// returning the number and optionally registering the line as
	// changed.
	function changeLine(doc, handle, changeType, op) {
	var no = handle, line = handle;
	if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
	else { no = lineNo(handle); }
	if (no == null) { return null }
	if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
	return line
	}

	// The document is represented as a BTree consisting of leaves, with
	// chunk of lines in them, and branches, with up to ten leaves or
	// other branch nodes below them. The top node is always a branch
	// node, and is the document object itself (meaning it has
	// additional methods and properties).
	//
	// All nodes have parent links. The tree is used both to go from
	// line numbers to line objects, and to go from objects to numbers.
	// It also indexes by height, and is used to convert between height
	// and line object, and to find the total height of the document.
	//
	// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html

	function LeafChunk(lines) {
	this.lines = lines;
	this.parent = null;
	var height = 0;
	for (var i = 0; i < lines.length; ++i) {
		lines[i].parent = this;
		height += lines[i].height;
	}
	this.height = height;
	}

	LeafChunk.prototype = {
	chunkSize: function() { return this.lines.length },

	// Remove the n lines at offset 'at'.
	removeInner: function(at, n) {
		for (var i = at, e = at + n; i < e; ++i) {
		var line = this.lines[i];
		this.height -= line.height;
		cleanUpLine(line);
		signalLater(line, "delete");
		}
		this.lines.splice(at, n);
	},

	// Helper used to collapse a small branch into a single leaf.
	collapse: function(lines) {
		lines.push.apply(lines, this.lines);
	},

	// Insert the given array of lines at offset 'at', count them as
	// having the given height.
	insertInner: function(at, lines, height) {
		this.height += height;
		this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
		for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }
	},

	// Used to iterate over a part of the tree.
	iterN: function(at, n, op) {
		for (var e = at + n; at < e; ++at)
		{ if (op(this.lines[at])) { return true } }
	}
	};

	function BranchChunk(children) {
	this.children = children;
	var size = 0, height = 0;
	for (var i = 0; i < children.length; ++i) {
		var ch = children[i];
		size += ch.chunkSize(); height += ch.height;
		ch.parent = this;
	}
	this.size = size;
	this.height = height;
	this.parent = null;
	}

	BranchChunk.prototype = {
	chunkSize: function() { return this.size },

	removeInner: function(at, n) {
		this.size -= n;
		for (var i = 0; i < this.children.length; ++i) {
		var child = this.children[i], sz = child.chunkSize();
		if (at < sz) {
			var rm = Math.min(n, sz - at), oldHeight = child.height;
			child.removeInner(at, rm);
			this.height -= oldHeight - child.height;
			if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
			if ((n -= rm) == 0) { break }
			at = 0;
		} else { at -= sz; }
		}
		// If the result is smaller than 25 lines, ensure that it is a
		// single leaf node.
		if (this.size - n < 25 &&
			(this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
		var lines = [];
		this.collapse(lines);
		this.children = [new LeafChunk(lines)];
		this.children[0].parent = this;
		}
	},

	collapse: function(lines) {
		for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }
	},

	insertInner: function(at, lines, height) {
		this.size += lines.length;
		this.height += height;
		for (var i = 0; i < this.children.length; ++i) {
		var child = this.children[i], sz = child.chunkSize();
		if (at <= sz) {
			child.insertInner(at, lines, height);
			if (child.lines && child.lines.length > 50) {
			// To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
			// Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
			var remaining = child.lines.length % 25 + 25;
			for (var pos = remaining; pos < child.lines.length;) {
				var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
				child.height -= leaf.height;
				this.children.splice(++i, 0, leaf);
				leaf.parent = this;
			}
			child.lines = child.lines.slice(0, remaining);
			this.maybeSpill();
			}
			break
		}
		at -= sz;
		}
	},

	// When a node has grown, check whether it should be split.
	maybeSpill: function() {
		if (this.children.length <= 10) { return }
		var me = this;
		do {
		var spilled = me.children.splice(me.children.length - 5, 5);
		var sibling = new BranchChunk(spilled);
		if (!me.parent) { // Become the parent node
			var copy = new BranchChunk(me.children);
			copy.parent = me;
			me.children = [copy, sibling];
			me = copy;
		} else {
			me.size -= sibling.size;
			me.height -= sibling.height;
			var myIndex = indexOf(me.parent.children, me);
			me.parent.children.splice(myIndex + 1, 0, sibling);
		}
		sibling.parent = me.parent;
		} while (me.children.length > 10)
		me.parent.maybeSpill();
	},

	iterN: function(at, n, op) {
		for (var i = 0; i < this.children.length; ++i) {
		var child = this.children[i], sz = child.chunkSize();
		if (at < sz) {
			var used = Math.min(n, sz - at);
			if (child.iterN(at, used, op)) { return true }
			if ((n -= used) == 0) { break }
			at = 0;
		} else { at -= sz; }
		}
	}
	};

	// Line widgets are block elements displayed above or below a line.

	var LineWidget = function(doc, node, options) {
	if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
		{ this[opt] = options[opt]; } } }
	this.doc = doc;
	this.node = node;
	};

	LineWidget.prototype.clear = function () {
	var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
	if (no == null || !ws) { return }
	for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }
	if (!ws.length) { line.widgets = null; }
	var height = widgetHeight(this);
	updateLineHeight(line, Math.max(0, line.height - height));
	if (cm) {
		runInOp(cm, function () {
		adjustScrollWhenAboveVisible(cm, line, -height);
		regLineChange(cm, no, "widget");
		});
		signalLater(cm, "lineWidgetCleared", cm, this, no);
	}
	};

	LineWidget.prototype.changed = function () {
		var this$1 = this;

	var oldH = this.height, cm = this.doc.cm, line = this.line;
	this.height = null;
	var diff = widgetHeight(this) - oldH;
	if (!diff) { return }
	if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
	if (cm) {
		runInOp(cm, function () {
		cm.curOp.forceUpdate = true;
		adjustScrollWhenAboveVisible(cm, line, diff);
		signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
		});
	}
	};
	eventMixin(LineWidget);

	function adjustScrollWhenAboveVisible(cm, line, diff) {
	if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
		{ addToScrollTop(cm, diff); }
	}

	function addLineWidget(doc, handle, node, options) {
	var widget = new LineWidget(doc, node, options);
	var cm = doc.cm;
	if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
	changeLine(doc, handle, "widget", function (line) {
		var widgets = line.widgets || (line.widgets = []);
		if (widget.insertAt == null) { widgets.push(widget); }
		else { widgets.splice(Math.min(widgets.length, Math.max(0, widget.insertAt)), 0, widget); }
		widget.line = line;
		if (cm && !lineIsHidden(doc, line)) {
		var aboveVisible = heightAtLine(line) < doc.scrollTop;
		updateLineHeight(line, line.height + widgetHeight(widget));
		if (aboveVisible) { addToScrollTop(cm, widget.height); }
		cm.curOp.forceUpdate = true;
		}
		return true
	});
	if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); }
	return widget
	}

	// TEXTMARKERS

	// Created with markText and setBookmark methods. A TextMarker is a
	// handle that can be used to clear or find a marked position in the
	// document. Line objects hold arrays (markedSpans) containing
	// {from, to, marker} object pointing to such marker objects, and
	// indicating that such a marker is present on that line. Multiple
	// lines may point to the same marker when it spans across lines.
	// The spans will have null for their from/to properties when the
	// marker continues beyond the start/end of the line. Markers have
	// links back to the lines they currently touch.

	// Collapsed markers have unique ids, in order to be able to order
	// them, which is needed for uniquely determining an outer marker
	// when they overlap (they may nest, but not partially overlap).
	var nextMarkerId = 0;

	var TextMarker = function(doc, type) {
	this.lines = [];
	this.type = type;
	this.doc = doc;
	this.id = ++nextMarkerId;
	};

	// Clear the marker.
	TextMarker.prototype.clear = function () {
	if (this.explicitlyCleared) { return }
	var cm = this.doc.cm, withOp = cm && !cm.curOp;
	if (withOp) { startOperation(cm); }
	if (hasHandler(this, "clear")) {
		var found = this.find();
		if (found) { signalLater(this, "clear", found.from, found.to); }
	}
	var min = null, max = null;
	for (var i = 0; i < this.lines.length; ++i) {
		var line = this.lines[i];
		var span = getMarkedSpanFor(line.markedSpans, this);
		if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); }
		else if (cm) {
		if (span.to != null) { max = lineNo(line); }
		if (span.from != null) { min = lineNo(line); }
		}
		line.markedSpans = removeMarkedSpan(line.markedSpans, span);
		if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
		{ updateLineHeight(line, textHeight(cm.display)); }
	}
	if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
		var visual = visualLine(this.lines[i$1]), len = lineLength(visual);
		if (len > cm.display.maxLineLength) {
		cm.display.maxLine = visual;
		cm.display.maxLineLength = len;
		cm.display.maxLineChanged = true;
		}
	} }

	if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
	this.lines.length = 0;
	this.explicitlyCleared = true;
	if (this.atomic && this.doc.cantEdit) {
		this.doc.cantEdit = false;
		if (cm) { reCheckSelection(cm.doc); }
	}
	if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
	if (withOp) { endOperation(cm); }
	if (this.parent) { this.parent.clear(); }
	};

	// Find the position of the marker in the document. Returns a {from,
	// to} object by default. Side can be passed to get a specific side
	// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
	// Pos objects returned contain a line object, rather than a line
	// number (used to prevent looking up the same line twice).
	TextMarker.prototype.find = function (side, lineObj) {
	if (side == null && this.type == "bookmark") { side = 1; }
	var from, to;
	for (var i = 0; i < this.lines.length; ++i) {
		var line = this.lines[i];
		var span = getMarkedSpanFor(line.markedSpans, this);
		if (span.from != null) {
		from = Pos(lineObj ? line : lineNo(line), span.from);
		if (side == -1) { return from }
		}
		if (span.to != null) {
		to = Pos(lineObj ? line : lineNo(line), span.to);
		if (side == 1) { return to }
		}
	}
	return from && {from: from, to: to}
	};

	// Signals that the marker's widget changed, and surrounding layout
	// should be recomputed.
	TextMarker.prototype.changed = function () {
		var this$1 = this;

	var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
	if (!pos || !cm) { return }
	runInOp(cm, function () {
		var line = pos.line, lineN = lineNo(pos.line);
		var view = findViewForLine(cm, lineN);
		if (view) {
		clearLineMeasurementCacheFor(view);
		cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
		}
		cm.curOp.updateMaxLine = true;
		if (!lineIsHidden(widget.doc, line) && widget.height != null) {
		var oldHeight = widget.height;
		widget.height = null;
		var dHeight = widgetHeight(widget) - oldHeight;
		if (dHeight)
			{ updateLineHeight(line, line.height + dHeight); }
		}
		signalLater(cm, "markerChanged", cm, this$1);
	});
	};

	TextMarker.prototype.attachLine = function (line) {
	if (!this.lines.length && this.doc.cm) {
		var op = this.doc.cm.curOp;
		if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
		{ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
	}
	this.lines.push(line);
	};

	TextMarker.prototype.detachLine = function (line) {
	this.lines.splice(indexOf(this.lines, line), 1);
	if (!this.lines.length && this.doc.cm) {
		var op = this.doc.cm.curOp
		;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
	}
	};
	eventMixin(TextMarker);

	// Create a marker, wire it up to the right lines, and
	function markText(doc, from, to, options, type) {
	// Shared markers (across linked documents) are handled separately
	// (markTextShared will call out to this again, once per
	// document).
	if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
	// Ensure we are in an operation.
	if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }

	var marker = new TextMarker(doc, type), diff = cmp(from, to);
	if (options) { copyObj(options, marker, false); }
	// Don't connect empty markers unless clearWhenEmpty is false
	if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
		{ return marker }
	if (marker.replacedWith) {
		// Showing up as a widget implies collapsed (widget replaces text)
		marker.collapsed = true;
		marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
		if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
		if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
	}
	if (marker.collapsed) {
		if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
			from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
		{ throw new Error("Inserting collapsed marker partially overlapping an existing one") }
		seeCollapsedSpans();
	}

	if (marker.addToHistory)
		{ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }

	var curLine = from.line, cm = doc.cm, updateMaxLine;
	doc.iter(curLine, to.line + 1, function (line) {
		if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
		{ updateMaxLine = true; }
		if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
		addMarkedSpan(line, new MarkedSpan(marker,
										curLine == from.line ? from.ch : null,
										curLine == to.line ? to.ch : null), doc.cm && doc.cm.curOp);
		++curLine;
	});
	// lineIsHidden depends on the presence of the spans, so needs a second pass
	if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
		if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
	}); }

	if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }

	if (marker.readOnly) {
		seeReadOnlySpans();
		if (doc.history.done.length || doc.history.undone.length)
		{ doc.clearHistory(); }
	}
	if (marker.collapsed) {
		marker.id = ++nextMarkerId;
		marker.atomic = true;
	}
	if (cm) {
		// Sync editor state
		if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
		if (marker.collapsed)
		{ regChange(cm, from.line, to.line + 1); }
		else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
				marker.attributes || marker.title)
		{ for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
		if (marker.atomic) { reCheckSelection(cm.doc); }
		signalLater(cm, "markerAdded", cm, marker);
	}
	return marker
	}

	// SHARED TEXTMARKERS

	// A shared marker spans multiple linked documents. It is
	// implemented as a meta-marker-object controlling multiple normal
	// markers.
	var SharedTextMarker = function(markers, primary) {
	this.markers = markers;
	this.primary = primary;
	for (var i = 0; i < markers.length; ++i)
		{ markers[i].parent = this; }
	};

	SharedTextMarker.prototype.clear = function () {
	if (this.explicitlyCleared) { return }
	this.explicitlyCleared = true;
	for (var i = 0; i < this.markers.length; ++i)
		{ this.markers[i].clear(); }
	signalLater(this, "clear");
	};

	SharedTextMarker.prototype.find = function (side, lineObj) {
	return this.primary.find(side, lineObj)
	};
	eventMixin(SharedTextMarker);

	function markTextShared(doc, from, to, options, type) {
	options = copyObj(options);
	options.shared = false;
	var markers = [markText(doc, from, to, options, type)], primary = markers[0];
	var widget = options.widgetNode;
	linkedDocs(doc, function (doc) {
		if (widget) { options.widgetNode = widget.cloneNode(true); }
		markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
		for (var i = 0; i < doc.linked.length; ++i)
		{ if (doc.linked[i].isParent) { return } }
		primary = lst(markers);
	});
	return new SharedTextMarker(markers, primary)
	}

	function findSharedMarkers(doc) {
	return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
	}

	function copySharedMarkers(doc, markers) {
	for (var i = 0; i < markers.length; i++) {
		var marker = markers[i], pos = marker.find();
		var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
		if (cmp(mFrom, mTo)) {
		var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
		marker.markers.push(subMark);
		subMark.parent = marker;
		}
	}
	}

	function detachSharedMarkers(markers) {
	var loop = function ( i ) {
		var marker = markers[i], linked = [marker.primary.doc];
		linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
		for (var j = 0; j < marker.markers.length; j++) {
		var subMarker = marker.markers[j];
		if (indexOf(linked, subMarker.doc) == -1) {
			subMarker.parent = null;
			marker.markers.splice(j--, 1);
		}
		}
	};

	for (var i = 0; i < markers.length; i++) loop( i );
	}

	var nextDocId = 0;
	var Doc = function(text, mode, firstLine, lineSep, direction) {
	if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
	if (firstLine == null) { firstLine = 0; }

	BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
	this.first = firstLine;
	this.scrollTop = this.scrollLeft = 0;
	this.cantEdit = false;
	this.cleanGeneration = 1;
	this.modeFrontier = this.highlightFrontier = firstLine;
	var start = Pos(firstLine, 0);
	this.sel = simpleSelection(start);
	this.history = new History(null);
	this.id = ++nextDocId;
	this.modeOption = mode;
	this.lineSep = lineSep;
	this.direction = (direction == "rtl") ? "rtl" : "ltr";
	this.extend = false;

	if (typeof text == "string") { text = this.splitLines(text); }
	updateDoc(this, {from: start, to: start, text: text});
	setSelection(this, simpleSelection(start), sel_dontScroll);
	};

	Doc.prototype = createObj(BranchChunk.prototype, {
	constructor: Doc,
	// Iterate over the document. Supports two forms -- with only one
	// argument, it calls that for each line in the document. With
	// three, it iterates over the range given by the first two (with
	// the second being non-inclusive).
	iter: function(from, to, op) {
		if (op) { this.iterN(from - this.first, to - from, op); }
		else { this.iterN(this.first, this.first + this.size, from); }
	},

	// Non-public interface for adding and removing lines.
	insert: function(at, lines) {
		var height = 0;
		for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
		this.insertInner(at - this.first, lines, height);
	},
	remove: function(at, n) { this.removeInner(at - this.first, n); },

	// From here, the methods are part of the public interface. Most
	// are also available from CodeMirror (editor) instances.

	getValue: function(lineSep) {
		var lines = getLines(this, this.first, this.first + this.size);
		if (lineSep === false) { return lines }
		return lines.join(lineSep || this.lineSeparator())
	},
	setValue: docMethodOp(function(code) {
		var top = Pos(this.first, 0), last = this.first + this.size - 1;
		makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
						text: this.splitLines(code), origin: "setValue", full: true}, true);
		if (this.cm) { scrollToCoords(this.cm, 0, 0); }
		setSelection(this, simpleSelection(top), sel_dontScroll);
	}),
	replaceRange: function(code, from, to, origin) {
		from = clipPos(this, from);
		to = to ? clipPos(this, to) : from;
		replaceRange(this, code, from, to, origin);
	},
	getRange: function(from, to, lineSep) {
		var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
		if (lineSep === false) { return lines }
		if (lineSep === '') { return lines.join('') }
		return lines.join(lineSep || this.lineSeparator())
	},

	getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},

	getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
	getLineNumber: function(line) {return lineNo(line)},

	getLineHandleVisualStart: function(line) {
		if (typeof line == "number") { line = getLine(this, line); }
		return visualLine(line)
	},

	lineCount: function() {return this.size},
	firstLine: function() {return this.first},
	lastLine: function() {return this.first + this.size - 1},

	clipPos: function(pos) {return clipPos(this, pos)},

	getCursor: function(start) {
		var range = this.sel.primary(), pos;
		if (start == null || start == "head") { pos = range.head; }
		else if (start == "anchor") { pos = range.anchor; }
		else if (start == "end" || start == "to" || start === false) { pos = range.to(); }
		else { pos = range.from(); }
		return pos
	},
	listSelections: function() { return this.sel.ranges },
	somethingSelected: function() {return this.sel.somethingSelected()},

	setCursor: docMethodOp(function(line, ch, options) {
		setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
	}),
	setSelection: docMethodOp(function(anchor, head, options) {
		setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
	}),
	extendSelection: docMethodOp(function(head, other, options) {
		extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
	}),
	extendSelections: docMethodOp(function(heads, options) {
		extendSelections(this, clipPosArray(this, heads), options);
	}),
	extendSelectionsBy: docMethodOp(function(f, options) {
		var heads = map(this.sel.ranges, f);
		extendSelections(this, clipPosArray(this, heads), options);
	}),
	setSelections: docMethodOp(function(ranges, primary, options) {
		if (!ranges.length) { return }
		var out = [];
		for (var i = 0; i < ranges.length; i++)
		{ out[i] = new Range(clipPos(this, ranges[i].anchor),
							clipPos(this, ranges[i].head || ranges[i].anchor)); }
		if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
		setSelection(this, normalizeSelection(this.cm, out, primary), options);
	}),
	addSelection: docMethodOp(function(anchor, head, options) {
		var ranges = this.sel.ranges.slice(0);
		ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
		setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
	}),

	getSelection: function(lineSep) {
		var ranges = this.sel.ranges, lines;
		for (var i = 0; i < ranges.length; i++) {
		var sel = getBetween(this, ranges[i].from(), ranges[i].to());
		lines = lines ? lines.concat(sel) : sel;
		}
		if (lineSep === false) { return lines }
		else { return lines.join(lineSep || this.lineSeparator()) }
	},
	getSelections: function(lineSep) {
		var parts = [], ranges = this.sel.ranges;
		for (var i = 0; i < ranges.length; i++) {
		var sel = getBetween(this, ranges[i].from(), ranges[i].to());
		if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }
		parts[i] = sel;
		}
		return parts
	},
	replaceSelection: function(code, collapse, origin) {
		var dup = [];
		for (var i = 0; i < this.sel.ranges.length; i++)
		{ dup[i] = code; }
		this.replaceSelections(dup, collapse, origin || "+input");
	},
	replaceSelections: docMethodOp(function(code, collapse, origin) {
		var changes = [], sel = this.sel;
		for (var i = 0; i < sel.ranges.length; i++) {
		var range = sel.ranges[i];
		changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
		}
		var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
		for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
		{ makeChange(this, changes[i$1]); }
		if (newSel) { setSelectionReplaceHistory(this, newSel); }
		else if (this.cm) { ensureCursorVisible(this.cm); }
	}),
	undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
	redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
	undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
	redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),

	setExtending: function(val) {this.extend = val;},
	getExtending: function() {return this.extend},

	historySize: function() {
		var hist = this.history, done = 0, undone = 0;
		for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
		for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
		return {undo: done, redo: undone}
	},
	clearHistory: function() {
		var this$1 = this;

		this.history = new History(this.history);
		linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);
	},

	markClean: function() {
		this.cleanGeneration = this.changeGeneration(true);
	},
	changeGeneration: function(forceSplit) {
		if (forceSplit)
		{ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
		return this.history.generation
	},
	isClean: function (gen) {
		return this.history.generation == (gen || this.cleanGeneration)
	},

	getHistory: function() {
		return {done: copyHistoryArray(this.history.done),
				undone: copyHistoryArray(this.history.undone)}
	},
	setHistory: function(histData) {
		var hist = this.history = new History(this.history);
		hist.done = copyHistoryArray(histData.done.slice(0), null, true);
		hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
	},

	setGutterMarker: docMethodOp(function(line, gutterID, value) {
		return changeLine(this, line, "gutter", function (line) {
		var markers = line.gutterMarkers || (line.gutterMarkers = {});
		markers[gutterID] = value;
		if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
		return true
		})
	}),

	clearGutter: docMethodOp(function(gutterID) {
		var this$1 = this;

		this.iter(function (line) {
		if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
			changeLine(this$1, line, "gutter", function () {
			line.gutterMarkers[gutterID] = null;
			if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
			return true
			});
		}
		});
	}),

	lineInfo: function(line) {
		var n;
		if (typeof line == "number") {
		if (!isLine(this, line)) { return null }
		n = line;
		line = getLine(this, line);
		if (!line) { return null }
		} else {
		n = lineNo(line);
		if (n == null) { return null }
		}
		return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
				textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
				widgets: line.widgets}
	},

	addLineClass: docMethodOp(function(handle, where, cls) {
		return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
		var prop = where == "text" ? "textClass"
				: where == "background" ? "bgClass"
				: where == "gutter" ? "gutterClass" : "wrapClass";
		if (!line[prop]) { line[prop] = cls; }
		else if (classTest(cls).test(line[prop])) { return false }
		else { line[prop] += " " + cls; }
		return true
		})
	}),
	removeLineClass: docMethodOp(function(handle, where, cls) {
		return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
		var prop = where == "text" ? "textClass"
				: where == "background" ? "bgClass"
				: where == "gutter" ? "gutterClass" : "wrapClass";
		var cur = line[prop];
		if (!cur) { return false }
		else if (cls == null) { line[prop] = null; }
		else {
			var found = cur.match(classTest(cls));
			if (!found) { return false }
			var end = found.index + found[0].length;
			line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
		}
		return true
		})
	}),

	addLineWidget: docMethodOp(function(handle, node, options) {
		return addLineWidget(this, handle, node, options)
	}),
	removeLineWidget: function(widget) { widget.clear(); },

	markText: function(from, to, options) {
		return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
	},
	setBookmark: function(pos, options) {
		var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
						insertLeft: options && options.insertLeft,
						clearWhenEmpty: false, shared: options && options.shared,
						handleMouseEvents: options && options.handleMouseEvents};
		pos = clipPos(this, pos);
		return markText(this, pos, pos, realOpts, "bookmark")
	},
	findMarksAt: function(pos) {
		pos = clipPos(this, pos);
		var markers = [], spans = getLine(this, pos.line).markedSpans;
		if (spans) { for (var i = 0; i < spans.length; ++i) {
		var span = spans[i];
		if ((span.from == null || span.from <= pos.ch) &&
			(span.to == null || span.to >= pos.ch))
			{ markers.push(span.marker.parent || span.marker); }
		} }
		return markers
	},
	findMarks: function(from, to, filter) {
		from = clipPos(this, from); to = clipPos(this, to);
		var found = [], lineNo = from.line;
		this.iter(from.line, to.line + 1, function (line) {
		var spans = line.markedSpans;
		if (spans) { for (var i = 0; i < spans.length; i++) {
			var span = spans[i];
			if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
				span.from == null && lineNo != from.line ||
				span.from != null && lineNo == to.line && span.from >= to.ch) &&
				(!filter || filter(span.marker)))
			{ found.push(span.marker.parent || span.marker); }
		} }
		++lineNo;
		});
		return found
	},
	getAllMarks: function() {
		var markers = [];
		this.iter(function (line) {
		var sps = line.markedSpans;
		if (sps) { for (var i = 0; i < sps.length; ++i)
			{ if (sps[i].from != null) { markers.push(sps[i].marker); } } }
		});
		return markers
	},

	posFromIndex: function(off) {
		var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
		this.iter(function (line) {
		var sz = line.text.length + sepSize;
		if (sz > off) { ch = off; return true }
		off -= sz;
		++lineNo;
		});
		return clipPos(this, Pos(lineNo, ch))
	},
	indexFromPos: function (coords) {
		coords = clipPos(this, coords);
		var index = coords.ch;
		if (coords.line < this.first || coords.ch < 0) { return 0 }
		var sepSize = this.lineSeparator().length;
		this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
		index += line.text.length + sepSize;
		});
		return index
	},

	copy: function(copyHistory) {
		var doc = new Doc(getLines(this, this.first, this.first + this.size),
						this.modeOption, this.first, this.lineSep, this.direction);
		doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
		doc.sel = this.sel;
		doc.extend = false;
		if (copyHistory) {
		doc.history.undoDepth = this.history.undoDepth;
		doc.setHistory(this.getHistory());
		}
		return doc
	},

	linkedDoc: function(options) {
		if (!options) { options = {}; }
		var from = this.first, to = this.first + this.size;
		if (options.from != null && options.from > from) { from = options.from; }
		if (options.to != null && options.to < to) { to = options.to; }
		var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
		if (options.sharedHist) { copy.history = this.history
		; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
		copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
		copySharedMarkers(copy, findSharedMarkers(this));
		return copy
	},
	unlinkDoc: function(other) {
		if (other instanceof CodeMirror) { other = other.doc; }
		if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
		var link = this.linked[i];
		if (link.doc != other) { continue }
		this.linked.splice(i, 1);
		other.unlinkDoc(this);
		detachSharedMarkers(findSharedMarkers(this));
		break
		} }
		// If the histories were shared, split them again
		if (other.history == this.history) {
		var splitIds = [other.id];
		linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
		other.history = new History(null);
		other.history.done = copyHistoryArray(this.history.done, splitIds);
		other.history.undone = copyHistoryArray(this.history.undone, splitIds);
		}
	},
	iterLinkedDocs: function(f) {linkedDocs(this, f);},

	getMode: function() {return this.mode},
	getEditor: function() {return this.cm},

	splitLines: function(str) {
		if (this.lineSep) { return str.split(this.lineSep) }
		return splitLinesAuto(str)
	},
	lineSeparator: function() { return this.lineSep || "\n" },

	setDirection: docMethodOp(function (dir) {
		if (dir != "rtl") { dir = "ltr"; }
		if (dir == this.direction) { return }
		this.direction = dir;
		this.iter(function (line) { return line.order = null; });
		if (this.cm) { directionChanged(this.cm); }
	})
	});

	// Public alias.
	Doc.prototype.eachLine = Doc.prototype.iter;

	// Kludge to work around strange IE behavior where it'll sometimes
	// re-fire a series of drag-related events right after the drop (#1551)
	var lastDrop = 0;

	function onDrop(e) {
	var cm = this;
	clearDragCursor(cm);
	if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
		{ return }
	e_preventDefault(e);
	if (ie) { lastDrop = +new Date; }
	var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
	if (!pos || cm.isReadOnly()) { return }
	// Might be a file drop, in which case we simply extract the text
	// and insert it.
	if (files && files.length && window.FileReader && window.File) {
		var n = files.length, text = Array(n), read = 0;
		var markAsReadAndPasteIfAllFilesAreRead = function () {
		if (++read == n) {
			operation(cm, function () {
			pos = clipPos(cm.doc, pos);
			var change = {from: pos, to: pos,
							text: cm.doc.splitLines(
								text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),
							origin: "paste"};
			makeChange(cm.doc, change);
			setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));
			})();
		}
		};
		var readTextFromFile = function (file, i) {
		if (cm.options.allowDropFileTypes &&
			indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
			markAsReadAndPasteIfAllFilesAreRead();
			return
		}
		var reader = new FileReader;
		reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };
		reader.onload = function () {
			var content = reader.result;
			if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
			markAsReadAndPasteIfAllFilesAreRead();
			return
			}
			text[i] = content;
			markAsReadAndPasteIfAllFilesAreRead();
		};
		reader.readAsText(file);
		};
		for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }
	} else { // Normal drop
		// Don't do a replace if the drop happened inside of the selected text.
		if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
		cm.state.draggingText(e);
		// Ensure the editor is re-focused
		setTimeout(function () { return cm.display.input.focus(); }, 20);
		return
		}
		try {
		var text$1 = e.dataTransfer.getData("Text");
		if (text$1) {
			var selected;
			if (cm.state.draggingText && !cm.state.draggingText.copy)
			{ selected = cm.listSelections(); }
			setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
			if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
			{ replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
			cm.replaceSelection(text$1, "around", "paste");
			cm.display.input.focus();
		}
		}
		catch(e$1){}
	}
	}

	function onDragStart(cm, e) {
	if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
	if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }

	e.dataTransfer.setData("Text", cm.getSelection());
	e.dataTransfer.effectAllowed = "copyMove";

	// Use dummy image instead of default browsers image.
	// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
	if (e.dataTransfer.setDragImage && !safari) {
		var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
		img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
		if (presto) {
		img.width = img.height = 1;
		cm.display.wrapper.appendChild(img);
		// Force a relayout, or Opera won't use our image for some obscure reason
		img._top = img.offsetTop;
		}
		e.dataTransfer.setDragImage(img, 0, 0);
		if (presto) { img.parentNode.removeChild(img); }
	}
	}

	function onDragOver(cm, e) {
	var pos = posFromMouse(cm, e);
	if (!pos) { return }
	var frag = document.createDocumentFragment();
	drawSelectionCursor(cm, pos, frag);
	if (!cm.display.dragCursor) {
		cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
		cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
	}
	removeChildrenAndAdd(cm.display.dragCursor, frag);
	}

	function clearDragCursor(cm) {
	if (cm.display.dragCursor) {
		cm.display.lineSpace.removeChild(cm.display.dragCursor);
		cm.display.dragCursor = null;
	}
	}

	// These must be handled carefully, because naively registering a
	// handler for each editor will cause the editors to never be
	// garbage collected.

	function forEachCodeMirror(f) {
	if (!document.getElementsByClassName) { return }
	var byClass = document.getElementsByClassName("CodeMirror"), editors = [];
	for (var i = 0; i < byClass.length; i++) {
		var cm = byClass[i].CodeMirror;
		if (cm) { editors.push(cm); }
	}
	if (editors.length) { editors[0].operation(function () {
		for (var i = 0; i < editors.length; i++) { f(editors[i]); }
	}); }
	}

	var globalsRegistered = false;
	function ensureGlobalHandlers() {
	if (globalsRegistered) { return }
	registerGlobalHandlers();
	globalsRegistered = true;
	}
	function registerGlobalHandlers() {
	// When the window resizes, we need to refresh active editors.
	var resizeTimer;
	on(window, "resize", function () {
		if (resizeTimer == null) { resizeTimer = setTimeout(function () {
		resizeTimer = null;
		forEachCodeMirror(onResize);
		}, 100); }
	});
	// When the window loses focus, we want to show the editor as blurred
	on(window, "blur", function () { return forEachCodeMirror(onBlur); });
	}
	// Called when the window resizes
	function onResize(cm) {
	var d = cm.display;
	// Might be a text scaling operation, clear size caches.
	d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
	d.scrollbarsClipped = false;
	cm.setSize();
	}

	var keyNames = {
	3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
	19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
	36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
	46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
	106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
	173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
	221: "]", 222: "'", 224: "Mod", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
	63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
	};

	// Number keys
	for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
	// Alphabetic keys
	for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
	// Function keys
	for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }

	var keyMap = {};

	keyMap.basic = {
	"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
	"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
	"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
	"Tab": "defaultTab", "Shift-Tab": "indentAuto",
	"Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
	"Esc": "singleSelection"
	};
	// Note that the save and find-related commands aren't defined by
	// default. User code or addons can define them. Unknown commands
	// are simply ignored.
	keyMap.pcDefault = {
	"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
	"Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
	"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
	"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
	"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
	"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
	"Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
	"fallthrough": "basic"
	};
	// Very basic readline/emacs-style bindings, which are standard on Mac.
	keyMap.emacsy = {
	"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
	"Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp",
	"Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine",
	"Ctrl-T": "transposeChars", "Ctrl-O": "openLine"
	};
	keyMap.macDefault = {
	"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
	"Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
	"Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
	"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
	"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
	"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
	"Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
	"fallthrough": ["basic", "emacsy"]
	};
	keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;

	// KEYMAP DISPATCH

	function normalizeKeyName(name) {
	var parts = name.split(/-(?!$)/);
	name = parts[parts.length - 1];
	var alt, ctrl, shift, cmd;
	for (var i = 0; i < parts.length - 1; i++) {
		var mod = parts[i];
		if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
		else if (/^a(lt)?$/i.test(mod)) { alt = true; }
		else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
		else if (/^s(hift)?$/i.test(mod)) { shift = true; }
		else { throw new Error("Unrecognized modifier name: " + mod) }
	}
	if (alt) { name = "Alt-" + name; }
	if (ctrl) { name = "Ctrl-" + name; }
	if (cmd) { name = "Cmd-" + name; }
	if (shift) { name = "Shift-" + name; }
	return name
	}

	// This is a kludge to keep keymaps mostly working as raw objects
	// (backwards compatibility) while at the same time support features
	// like normalization and multi-stroke key bindings. It compiles a
	// new normalized keymap, and then updates the old object to reflect
	// this.
	function normalizeKeyMap(keymap) {
	var copy = {};
	for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
		var value = keymap[keyname];
		if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
		if (value == "...") { delete keymap[keyname]; continue }

		var keys = map(keyname.split(" "), normalizeKeyName);
		for (var i = 0; i < keys.length; i++) {
		var val = (void 0), name = (void 0);
		if (i == keys.length - 1) {
			name = keys.join(" ");
			val = value;
		} else {
			name = keys.slice(0, i + 1).join(" ");
			val = "...";
		}
		var prev = copy[name];
		if (!prev) { copy[name] = val; }
		else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
		}
		delete keymap[keyname];
	} }
	for (var prop in copy) { keymap[prop] = copy[prop]; }
	return keymap
	}

	function lookupKey(key, map, handle, context) {
	map = getKeyMap(map);
	var found = map.call ? map.call(key, context) : map[key];
	if (found === false) { return "nothing" }
	if (found === "...") { return "multi" }
	if (found != null && handle(found)) { return "handled" }

	if (map.fallthrough) {
		if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
		{ return lookupKey(key, map.fallthrough, handle, context) }
		for (var i = 0; i < map.fallthrough.length; i++) {
		var result = lookupKey(key, map.fallthrough[i], handle, context);
		if (result) { return result }
		}
	}
	}

	// Modifier key presses don't count as 'real' key presses for the
	// purpose of keymap fallthrough.
	function isModifierKey(value) {
	var name = typeof value == "string" ? value : keyNames[value.keyCode];
	return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
	}

	function addModifierNames(name, event, noShift) {
	var base = name;
	if (event.altKey && base != "Alt") { name = "Alt-" + name; }
	if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
	if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Mod") { name = "Cmd-" + name; }
	if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
	return name
	}

	// Look up the name of a key as indicated by an event object.
	function keyName(event, noShift) {
	if (presto && event.keyCode == 34 && event["char"]) { return false }
	var name = keyNames[event.keyCode];
	if (name == null || event.altGraphKey) { return false }
	// Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
	// so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
	if (event.keyCode == 3 && event.code) { name = event.code; }
	return addModifierNames(name, event, noShift)
	}

	function getKeyMap(val) {
	return typeof val == "string" ? keyMap[val] : val
	}

	// Helper for deleting text near the selection(s), used to implement
	// backspace, delete, and similar functionality.
	function deleteNearSelection(cm, compute) {
	var ranges = cm.doc.sel.ranges, kill = [];
	// Build up a set of ranges to kill first, merging overlapping
	// ranges.
	for (var i = 0; i < ranges.length; i++) {
		var toKill = compute(ranges[i]);
		while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
		var replaced = kill.pop();
		if (cmp(replaced.from, toKill.from) < 0) {
			toKill.from = replaced.from;
			break
		}
		}
		kill.push(toKill);
	}
	// Next, remove those actual ranges.
	runInOp(cm, function () {
		for (var i = kill.length - 1; i >= 0; i--)
		{ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
		ensureCursorVisible(cm);
	});
	}

	function moveCharLogically(line, ch, dir) {
	var target = skipExtendingChars(line.text, ch + dir, dir);
	return target < 0 || target > line.text.length ? null : target
	}

	function moveLogically(line, start, dir) {
	var ch = moveCharLogically(line, start.ch, dir);
	return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
	}

	function endOfLine(visually, cm, lineObj, lineNo, dir) {
	if (visually) {
		if (cm.doc.direction == "rtl") { dir = -dir; }
		var order = getOrder(lineObj, cm.doc.direction);
		if (order) {
		var part = dir < 0 ? lst(order) : order[0];
		var moveInStorageOrder = (dir < 0) == (part.level == 1);
		var sticky = moveInStorageOrder ? "after" : "before";
		var ch;
		// With a wrapped rtl chunk (possibly spanning multiple bidi parts),
		// it could be that the last bidi part is not on the last visual line,
		// since visual lines contain content order-consecutive chunks.
		// Thus, in rtl, we are looking for the first (content-order) character
		// in the rtl chunk that is on the last line (that is, the same line
		// as the last (content-order) character).
		if (part.level > 0 || cm.doc.direction == "rtl") {
			var prep = prepareMeasureForLine(cm, lineObj);
			ch = dir < 0 ? lineObj.text.length - 1 : 0;
			var targetTop = measureCharPrepared(cm, prep, ch).top;
			ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
			if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
		} else { ch = dir < 0 ? part.to : part.from; }
		return new Pos(lineNo, ch, sticky)
		}
	}
	return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
	}

	function moveVisually(cm, line, start, dir) {
	var bidi = getOrder(line, cm.doc.direction);
	if (!bidi) { return moveLogically(line, start, dir) }
	if (start.ch >= line.text.length) {
		start.ch = line.text.length;
		start.sticky = "before";
	} else if (start.ch <= 0) {
		start.ch = 0;
		start.sticky = "after";
	}
	var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
	if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
		// Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
		// nothing interesting happens.
		return moveLogically(line, start, dir)
	}

	var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
	var prep;
	var getWrappedLineExtent = function (ch) {
		if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
		prep = prep || prepareMeasureForLine(cm, line);
		return wrappedLineExtentChar(cm, line, prep, ch)
	};
	var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);

	if (cm.doc.direction == "rtl" || part.level == 1) {
		var moveInStorageOrder = (part.level == 1) == (dir < 0);
		var ch = mv(start, moveInStorageOrder ? 1 : -1);
		if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
		// Case 2: We move within an rtl part or in an rtl editor on the same visual line
		var sticky = moveInStorageOrder ? "before" : "after";
		return new Pos(start.line, ch, sticky)
		}
	}

	// Case 3: Could not move within this bidi part in this visual line, so leave
	// the current bidi part

	var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
		var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
		? new Pos(start.line, mv(ch, 1), "before")
		: new Pos(start.line, ch, "after"); };

		for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
		var part = bidi[partPos];
		var moveInStorageOrder = (dir > 0) == (part.level != 1);
		var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
		if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
		ch = moveInStorageOrder ? part.from : mv(part.to, -1);
		if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
		}
	};

	// Case 3a: Look for other bidi parts on the same visual line
	var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
	if (res) { return res }

	// Case 3b: Look for other bidi parts on the next visual line
	var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
	if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
		res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
		if (res) { return res }
	}

	// Case 4: Nowhere to move
	return null
	}

	// Commands are parameter-less actions that can be performed on an
	// editor, mostly used for keybindings.
	var commands = {
	selectAll: selectAll,
	singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
	killLine: function (cm) { return deleteNearSelection(cm, function (range) {
		if (range.empty()) {
		var len = getLine(cm.doc, range.head.line).text.length;
		if (range.head.ch == len && range.head.line < cm.lastLine())
			{ return {from: range.head, to: Pos(range.head.line + 1, 0)} }
		else
			{ return {from: range.head, to: Pos(range.head.line, len)} }
		} else {
		return {from: range.from(), to: range.to()}
		}
	}); },
	deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
		from: Pos(range.from().line, 0),
		to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
	}); }); },
	delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
		from: Pos(range.from().line, 0), to: range.from()
	}); }); },
	delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
		var top = cm.charCoords(range.head, "div").top + 5;
		var leftPos = cm.coordsChar({left: 0, top: top}, "div");
		return {from: leftPos, to: range.from()}
	}); },
	delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
		var top = cm.charCoords(range.head, "div").top + 5;
		var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
		return {from: range.from(), to: rightPos }
	}); },
	undo: function (cm) { return cm.undo(); },
	redo: function (cm) { return cm.redo(); },
	undoSelection: function (cm) { return cm.undoSelection(); },
	redoSelection: function (cm) { return cm.redoSelection(); },
	goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
	goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
	goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
		{origin: "+move", bias: 1}
	); },
	goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
		{origin: "+move", bias: 1}
	); },
	goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
		{origin: "+move", bias: -1}
	); },
	goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
		var top = cm.cursorCoords(range.head, "div").top + 5;
		return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
	}, sel_move); },
	goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
		var top = cm.cursorCoords(range.head, "div").top + 5;
		return cm.coordsChar({left: 0, top: top}, "div")
	}, sel_move); },
	goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
		var top = cm.cursorCoords(range.head, "div").top + 5;
		var pos = cm.coordsChar({left: 0, top: top}, "div");
		if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
		return pos
	}, sel_move); },
	goLineUp: function (cm) { return cm.moveV(-1, "line"); },
	goLineDown: function (cm) { return cm.moveV(1, "line"); },
	goPageUp: function (cm) { return cm.moveV(-1, "page"); },
	goPageDown: function (cm) { return cm.moveV(1, "page"); },
	goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
	goCharRight: function (cm) { return cm.moveH(1, "char"); },
	goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
	goColumnRight: function (cm) { return cm.moveH(1, "column"); },
	goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
	goGroupRight: function (cm) { return cm.moveH(1, "group"); },
	goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
	goWordRight: function (cm) { return cm.moveH(1, "word"); },
	delCharBefore: function (cm) { return cm.deleteH(-1, "codepoint"); },
	delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
	delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
	delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
	delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
	delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
	indentAuto: function (cm) { return cm.indentSelection("smart"); },
	indentMore: function (cm) { return cm.indentSelection("add"); },
	indentLess: function (cm) { return cm.indentSelection("subtract"); },
	insertTab: function (cm) { return cm.replaceSelection("\t"); },
	insertSoftTab: function (cm) {
		var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
		for (var i = 0; i < ranges.length; i++) {
		var pos = ranges[i].from();
		var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
		spaces.push(spaceStr(tabSize - col % tabSize));
		}
		cm.replaceSelections(spaces);
	},
	defaultTab: function (cm) {
		if (cm.somethingSelected()) { cm.indentSelection("add"); }
		else { cm.execCommand("insertTab"); }
	},
	// Swap the two chars left and right of each selection's head.
	// Move cursor behind the two swapped characters afterwards.
	//
	// Doesn't consider line feeds a character.
	// Doesn't scan more than one line above to find a character.
	// Doesn't do anything on an empty line.
	// Doesn't do anything with non-empty selections.
	transposeChars: function (cm) { return runInOp(cm, function () {
		var ranges = cm.listSelections(), newSel = [];
		for (var i = 0; i < ranges.length; i++) {
		if (!ranges[i].empty()) { continue }
		var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
		if (line) {
			if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
			if (cur.ch > 0) {
			cur = new Pos(cur.line, cur.ch + 1);
			cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
							Pos(cur.line, cur.ch - 2), cur, "+transpose");
			} else if (cur.line > cm.doc.first) {
			var prev = getLine(cm.doc, cur.line - 1).text;
			if (prev) {
				cur = new Pos(cur.line, 1);
				cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
								prev.charAt(prev.length - 1),
								Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
			}
			}
		}
		newSel.push(new Range(cur, cur));
		}
		cm.setSelections(newSel);
	}); },
	newlineAndIndent: function (cm) { return runInOp(cm, function () {
		var sels = cm.listSelections();
		for (var i = sels.length - 1; i >= 0; i--)
		{ cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
		sels = cm.listSelections();
		for (var i$1 = 0; i$1 < sels.length; i$1++)
		{ cm.indentLine(sels[i$1].from().line, null, true); }
		ensureCursorVisible(cm);
	}); },
	openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
	toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
	};


	function lineStart(cm, lineN) {
	var line = getLine(cm.doc, lineN);
	var visual = visualLine(line);
	if (visual != line) { lineN = lineNo(visual); }
	return endOfLine(true, cm, visual, lineN, 1)
	}
	function lineEnd(cm, lineN) {
	var line = getLine(cm.doc, lineN);
	var visual = visualLineEnd(line);
	if (visual != line) { lineN = lineNo(visual); }
	return endOfLine(true, cm, line, lineN, -1)
	}
	function lineStartSmart(cm, pos) {
	var start = lineStart(cm, pos.line);
	var line = getLine(cm.doc, start.line);
	var order = getOrder(line, cm.doc.direction);
	if (!order || order[0].level == 0) {
		var firstNonWS = Math.max(start.ch, line.text.search(/\S/));
		var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
		return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
	}
	return start
	}

	// Run a handler that was bound to a key.
	function doHandleBinding(cm, bound, dropShift) {
	if (typeof bound == "string") {
		bound = commands[bound];
		if (!bound) { return false }
	}
	// Ensure previous input has been read, so that the handler sees a
	// consistent view of the document
	cm.display.input.ensurePolled();
	var prevShift = cm.display.shift, done = false;
	try {
		if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
		if (dropShift) { cm.display.shift = false; }
		done = bound(cm) != Pass;
	} finally {
		cm.display.shift = prevShift;
		cm.state.suppressEdits = false;
	}
	return done
	}

	function lookupKeyForEditor(cm, name, handle) {
	for (var i = 0; i < cm.state.keyMaps.length; i++) {
		var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
		if (result) { return result }
	}
	return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
		|| lookupKey(name, cm.options.keyMap, handle, cm)
	}

	// Note that, despite the name, this function is also used to check
	// for bound mouse clicks.

	var stopSeq = new Delayed;

	function dispatchKey(cm, name, e, handle) {
	var seq = cm.state.keySeq;
	if (seq) {
		if (isModifierKey(name)) { return "handled" }
		if (/\'$/.test(name))
		{ cm.state.keySeq = null; }
		else
		{ stopSeq.set(50, function () {
			if (cm.state.keySeq == seq) {
			cm.state.keySeq = null;
			cm.display.input.reset();
			}
		}); }
		if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true }
	}
	return dispatchKeyInner(cm, name, e, handle)
	}

	function dispatchKeyInner(cm, name, e, handle) {
	var result = lookupKeyForEditor(cm, name, handle);

	if (result == "multi")
		{ cm.state.keySeq = name; }
	if (result == "handled")
		{ signalLater(cm, "keyHandled", cm, name, e); }

	if (result == "handled" || result == "multi") {
		e_preventDefault(e);
		restartBlink(cm);
	}

	return !!result
	}

	// Handle a key from the keydown event.
	function handleKeyBinding(cm, e) {
	var name = keyName(e, true);
	if (!name) { return false }

	if (e.shiftKey && !cm.state.keySeq) {
		// First try to resolve full name (including 'Shift-'). Failing
		// that, see if there is a cursor-motion command (starting with
		// 'go') bound to the keyname without 'Shift-'.
		return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
			|| dispatchKey(cm, name, e, function (b) {
				if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
				{ return doHandleBinding(cm, b) }
			})
	} else {
		return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
	}
	}

	// Handle a key from the keypress event
	function handleCharBinding(cm, e, ch) {
	return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
	}

	var lastStoppedKey = null;
	function onKeyDown(e) {
	var cm = this;
	if (e.target && e.target != cm.display.input.getField()) { return }
	cm.curOp.focus = activeElt(doc(cm));
	if (signalDOMEvent(cm, e)) { return }
	// IE does strange things with escape.
	if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }
	var code = e.keyCode;
	cm.display.shift = code == 16 || e.shiftKey;
	var handled = handleKeyBinding(cm, e);
	if (presto) {
		lastStoppedKey = handled ? code : null;
		// Opera has no cut event... we try to at least catch the key combo
		if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
		{ cm.replaceSelection("", null, "cut"); }
	}
	if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)
		{ document.execCommand("cut"); }

	// Turn mouse into crosshair when Alt is held on Mac.
	if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
		{ showCrossHair(cm); }
	}

	function showCrossHair(cm) {
	var lineDiv = cm.display.lineDiv;
	addClass(lineDiv, "CodeMirror-crosshair");

	function up(e) {
		if (e.keyCode == 18 || !e.altKey) {
		rmClass(lineDiv, "CodeMirror-crosshair");
		off(document, "keyup", up);
		off(document, "mouseover", up);
		}
	}
	on(document, "keyup", up);
	on(document, "mouseover", up);
	}

	function onKeyUp(e) {
	if (e.keyCode == 16) { this.doc.sel.shift = false; }
	signalDOMEvent(this, e);
	}

	function onKeyPress(e) {
	var cm = this;
	if (e.target && e.target != cm.display.input.getField()) { return }
	if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
	var keyCode = e.keyCode, charCode = e.charCode;
	if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
	if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
	var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
	// Some browsers fire keypress events for backspace
	if (ch == "\x08") { return }
	if (handleCharBinding(cm, e, ch)) { return }
	cm.display.input.onKeyPress(e);
	}

	var DOUBLECLICK_DELAY = 400;

	var PastClick = function(time, pos, button) {
	this.time = time;
	this.pos = pos;
	this.button = button;
	};

	PastClick.prototype.compare = function (time, pos, button) {
	return this.time + DOUBLECLICK_DELAY > time &&
		cmp(pos, this.pos) == 0 && button == this.button
	};

	var lastClick, lastDoubleClick;
	function clickRepeat(pos, button) {
	var now = +new Date;
	if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
		lastClick = lastDoubleClick = null;
		return "triple"
	} else if (lastClick && lastClick.compare(now, pos, button)) {
		lastDoubleClick = new PastClick(now, pos, button);
		lastClick = null;
		return "double"
	} else {
		lastClick = new PastClick(now, pos, button);
		lastDoubleClick = null;
		return "single"
	}
	}

	// A mouse down can be a single click, double click, triple click,
	// start of selection drag, start of text drag, new cursor
	// (ctrl-click), rectangle drag (alt-drag), or xwin
	// middle-click-paste. Or it might be a click on something we should
	// not interfere with, such as a scrollbar or widget.
	function onMouseDown(e) {
	var cm = this, display = cm.display;
	if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
	display.input.ensurePolled();
	display.shift = e.shiftKey;

	if (eventInWidget(display, e)) {
		if (!webkit) {
		// Briefly turn off draggability, to allow widgets to do
		// normal dragging things.
		display.scroller.draggable = false;
		setTimeout(function () { return display.scroller.draggable = true; }, 100);
		}
		return
	}
	if (clickInGutter(cm, e)) { return }
	var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
	win(cm).focus();

	// #3261: make sure, that we're not starting a second selection
	if (button == 1 && cm.state.selectingText)
		{ cm.state.selectingText(e); }

	if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }

	if (button == 1) {
		if (pos) { leftButtonDown(cm, pos, repeat, e); }
		else if (e_target(e) == display.scroller) { e_preventDefault(e); }
	} else if (button == 2) {
		if (pos) { extendSelection(cm.doc, pos); }
		setTimeout(function () { return display.input.focus(); }, 20);
	} else if (button == 3) {
		if (captureRightClick) { cm.display.input.onContextMenu(e); }
		else { delayBlurEvent(cm); }
	}
	}

	function handleMappedButton(cm, button, pos, repeat, event) {
	var name = "Click";
	if (repeat == "double") { name = "Double" + name; }
	else if (repeat == "triple") { name = "Triple" + name; }
	name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;

	return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {
		if (typeof bound == "string") { bound = commands[bound]; }
		if (!bound) { return false }
		var done = false;
		try {
		if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
		done = bound(cm, pos) != Pass;
		} finally {
		cm.state.suppressEdits = false;
		}
		return done
	})
	}

	function configureMouse(cm, repeat, event) {
	var option = cm.getOption("configureMouse");
	var value = option ? option(cm, repeat, event) : {};
	if (value.unit == null) {
		var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;
		value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line";
	}
	if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }
	if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }
	if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }
	return value
	}

	function leftButtonDown(cm, pos, repeat, event) {
	if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
	else { cm.curOp.focus = activeElt(doc(cm)); }

	var behavior = configureMouse(cm, repeat, event);

	var sel = cm.doc.sel, contained;
	if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
		repeat == "single" && (contained = sel.contains(pos)) > -1 &&
		(cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
		(cmp(contained.to(), pos) > 0 || pos.xRel < 0))
		{ leftButtonStartDrag(cm, event, pos, behavior); }
	else
		{ leftButtonSelect(cm, event, pos, behavior); }
	}

	// Start a text drag. When it ends, see if any dragging actually
	// happen, and treat as a click if it didn't.
	function leftButtonStartDrag(cm, event, pos, behavior) {
	var display = cm.display, moved = false;
	var dragEnd = operation(cm, function (e) {
		if (webkit) { display.scroller.draggable = false; }
		cm.state.draggingText = false;
		if (cm.state.delayingBlurEvent) {
		if (cm.hasFocus()) { cm.state.delayingBlurEvent = false; }
		else { delayBlurEvent(cm); }
		}
		off(display.wrapper.ownerDocument, "mouseup", dragEnd);
		off(display.wrapper.ownerDocument, "mousemove", mouseMove);
		off(display.scroller, "dragstart", dragStart);
		off(display.scroller, "drop", dragEnd);
		if (!moved) {
		e_preventDefault(e);
		if (!behavior.addNew)
			{ extendSelection(cm.doc, pos, null, null, behavior.extend); }
		// Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
		if ((webkit && !safari) || ie && ie_version == 9)
			{ setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); }
		else
			{ display.input.focus(); }
		}
	});
	var mouseMove = function(e2) {
		moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
	};
	var dragStart = function () { return moved = true; };
	// Let the drag handler handle this.
	if (webkit) { display.scroller.draggable = true; }
	cm.state.draggingText = dragEnd;
	dragEnd.copy = !behavior.moveOnDrag;
	on(display.wrapper.ownerDocument, "mouseup", dragEnd);
	on(display.wrapper.ownerDocument, "mousemove", mouseMove);
	on(display.scroller, "dragstart", dragStart);
	on(display.scroller, "drop", dragEnd);

	cm.state.delayingBlurEvent = true;
	setTimeout(function () { return display.input.focus(); }, 20);
	// IE's approach to draggable
	if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
	}

	function rangeForUnit(cm, pos, unit) {
	if (unit == "char") { return new Range(pos, pos) }
	if (unit == "word") { return cm.findWordAt(pos) }
	if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
	var result = unit(cm, pos);
	return new Range(result.from, result.to)
	}

	// Normal selection, as opposed to text dragging.
	function leftButtonSelect(cm, event, start, behavior) {
	if (ie) { delayBlurEvent(cm); }
	var display = cm.display, doc$1 = cm.doc;
	e_preventDefault(event);

	var ourRange, ourIndex, startSel = doc$1.sel, ranges = startSel.ranges;
	if (behavior.addNew && !behavior.extend) {
		ourIndex = doc$1.sel.contains(start);
		if (ourIndex > -1)
		{ ourRange = ranges[ourIndex]; }
		else
		{ ourRange = new Range(start, start); }
	} else {
		ourRange = doc$1.sel.primary();
		ourIndex = doc$1.sel.primIndex;
	}

	if (behavior.unit == "rectangle") {
		if (!behavior.addNew) { ourRange = new Range(start, start); }
		start = posFromMouse(cm, event, true, true);
		ourIndex = -1;
	} else {
		var range = rangeForUnit(cm, start, behavior.unit);
		if (behavior.extend)
		{ ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }
		else
		{ ourRange = range; }
	}

	if (!behavior.addNew) {
		ourIndex = 0;
		setSelection(doc$1, new Selection([ourRange], 0), sel_mouse);
		startSel = doc$1.sel;
	} else if (ourIndex == -1) {
		ourIndex = ranges.length;
		setSelection(doc$1, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
					{scroll: false, origin: "*mouse"});
	} else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
		setSelection(doc$1, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
					{scroll: false, origin: "*mouse"});
		startSel = doc$1.sel;
	} else {
		replaceOneSelection(doc$1, ourIndex, ourRange, sel_mouse);
	}

	var lastPos = start;
	function extendTo(pos) {
		if (cmp(lastPos, pos) == 0) { return }
		lastPos = pos;

		if (behavior.unit == "rectangle") {
		var ranges = [], tabSize = cm.options.tabSize;
		var startCol = countColumn(getLine(doc$1, start.line).text, start.ch, tabSize);
		var posCol = countColumn(getLine(doc$1, pos.line).text, pos.ch, tabSize);
		var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
		for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
			line <= end; line++) {
			var text = getLine(doc$1, line).text, leftPos = findColumn(text, left, tabSize);
			if (left == right)
			{ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
			else if (text.length > leftPos)
			{ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
		}
		if (!ranges.length) { ranges.push(new Range(start, start)); }
		setSelection(doc$1, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
					{origin: "*mouse", scroll: false});
		cm.scrollIntoView(pos);
		} else {
		var oldRange = ourRange;
		var range = rangeForUnit(cm, pos, behavior.unit);
		var anchor = oldRange.anchor, head;
		if (cmp(range.anchor, anchor) > 0) {
			head = range.head;
			anchor = minPos(oldRange.from(), range.anchor);
		} else {
			head = range.anchor;
			anchor = maxPos(oldRange.to(), range.head);
		}
		var ranges$1 = startSel.ranges.slice(0);
		ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc$1, anchor), head));
		setSelection(doc$1, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);
		}
	}

	var editorSize = display.wrapper.getBoundingClientRect();
	// Used to ensure timeout re-tries don't fire when another extend
	// happened in the meantime (clearTimeout isn't reliable -- at
	// least on Chrome, the timeouts still happen even when cleared,
	// if the clear happens after their scheduled firing time).
	var counter = 0;

	function extend(e) {
		var curCount = ++counter;
		var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle");
		if (!cur) { return }
		if (cmp(cur, lastPos) != 0) {
		cm.curOp.focus = activeElt(doc(cm));
		extendTo(cur);
		var visible = visibleLines(display, doc$1);
		if (cur.line >= visible.to || cur.line < visible.from)
			{ setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }
		} else {
		var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
		if (outside) { setTimeout(operation(cm, function () {
			if (counter != curCount) { return }
			display.scroller.scrollTop += outside;
			extend(e);
		}), 50); }
		}
	}

	function done(e) {
		cm.state.selectingText = false;
		counter = Infinity;
		// If e is null or undefined we interpret this as someone trying
		// to explicitly cancel the selection rather than the user
		// letting go of the mouse button.
		if (e) {
		e_preventDefault(e);
		display.input.focus();
		}
		off(display.wrapper.ownerDocument, "mousemove", move);
		off(display.wrapper.ownerDocument, "mouseup", up);
		doc$1.history.lastSelOrigin = null;
	}

	var move = operation(cm, function (e) {
		if (e.buttons === 0 || !e_button(e)) { done(e); }
		else { extend(e); }
	});
	var up = operation(cm, done);
	cm.state.selectingText = up;
	on(display.wrapper.ownerDocument, "mousemove", move);
	on(display.wrapper.ownerDocument, "mouseup", up);
	}

	// Used when mouse-selecting to adjust the anchor to the proper side
	// of a bidi jump depending on the visual position of the head.
	function bidiSimplify(cm, range) {
	var anchor = range.anchor;
	var head = range.head;
	var anchorLine = getLine(cm.doc, anchor.line);
	if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
	var order = getOrder(anchorLine);
	if (!order) { return range }
	var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
	if (part.from != anchor.ch && part.to != anchor.ch) { return range }
	var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
	if (boundary == 0 || boundary == order.length) { return range }

	// Compute the relative visual position of the head compared to the
	// anchor (<0 is to the left, >0 to the right)
	var leftSide;
	if (head.line != anchor.line) {
		leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0;
	} else {
		var headIndex = getBidiPartAt(order, head.ch, head.sticky);
		var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);
		if (headIndex == boundary - 1 || headIndex == boundary)
		{ leftSide = dir < 0; }
		else
		{ leftSide = dir > 0; }
	}

	var usePart = order[boundary + (leftSide ? -1 : 0)];
	var from = leftSide == (usePart.level == 1);
	var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
	return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
	}


	// Determines whether an event happened in the gutter, and fires the
	// handlers for the corresponding event.
	function gutterEvent(cm, e, type, prevent) {
	var mX, mY;
	if (e.touches) {
		mX = e.touches[0].clientX;
		mY = e.touches[0].clientY;
	} else {
		try { mX = e.clientX; mY = e.clientY; }
		catch(e$1) { return false }
	}
	if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
	if (prevent) { e_preventDefault(e); }

	var display = cm.display;
	var lineBox = display.lineDiv.getBoundingClientRect();

	if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
	mY -= lineBox.top - display.viewOffset;

	for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {
		var g = display.gutters.childNodes[i];
		if (g && g.getBoundingClientRect().right >= mX) {
		var line = lineAtHeight(cm.doc, mY);
		var gutter = cm.display.gutterSpecs[i];
		signal(cm, type, cm, line, gutter.className, e);
		return e_defaultPrevented(e)
		}
	}
	}

	function clickInGutter(cm, e) {
	return gutterEvent(cm, e, "gutterClick", true)
	}

	// CONTEXT MENU HANDLING

	// To make the context menu work, we need to briefly unhide the
	// textarea (making it as unobtrusive as possible) to let the
	// right-click take effect on it.
	function onContextMenu(cm, e) {
	if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
	if (signalDOMEvent(cm, e, "contextmenu")) { return }
	if (!captureRightClick) { cm.display.input.onContextMenu(e); }
	}

	function contextMenuInGutter(cm, e) {
	if (!hasHandler(cm, "gutterContextMenu")) { return false }
	return gutterEvent(cm, e, "gutterContextMenu", false)
	}

	function themeChanged(cm) {
	cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
		cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
	clearCaches(cm);
	}

	var Init = {toString: function(){return "CodeMirror.Init"}};

	var defaults = {};
	var optionHandlers = {};

	function defineOptions(CodeMirror) {
	var optionHandlers = CodeMirror.optionHandlers;

	function option(name, deflt, handle, notOnInit) {
		CodeMirror.defaults[name] = deflt;
		if (handle) { optionHandlers[name] =
		notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }
	}

	CodeMirror.defineOption = option;

	// Passed to option handlers when there is no old value.
	CodeMirror.Init = Init;

	// These two are, on init, called from the constructor because they
	// have to be initialized before the editor can start at all.
	option("value", "", function (cm, val) { return cm.setValue(val); }, true);
	option("mode", null, function (cm, val) {
		cm.doc.modeOption = val;
		loadMode(cm);
	}, true);

	option("indentUnit", 2, loadMode, true);
	option("indentWithTabs", false);
	option("smartIndent", true);
	option("tabSize", 4, function (cm) {
		resetModeState(cm);
		clearCaches(cm);
		regChange(cm);
	}, true);

	option("lineSeparator", null, function (cm, val) {
		cm.doc.lineSep = val;
		if (!val) { return }
		var newBreaks = [], lineNo = cm.doc.first;
		cm.doc.iter(function (line) {
		for (var pos = 0;;) {
			var found = line.text.indexOf(val, pos);
			if (found == -1) { break }
			pos = found + val.length;
			newBreaks.push(Pos(lineNo, found));
		}
		lineNo++;
		});
		for (var i = newBreaks.length - 1; i >= 0; i--)
		{ replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
	});
	option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b\u200e\u200f\u2028\u2029\u202d\u202e\u2066\u2067\u2069\ufeff\ufff9-\ufffc]/g, function (cm, val, old) {
		cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
		if (old != Init) { cm.refresh(); }
	});
	option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
	option("electricChars", true);
	option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
		throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
	}, true);
	option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
	option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);
	option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);
	option("rtlMoveVisually", !windows);
	option("wholeLineUpdateBefore", true);

	option("theme", "default", function (cm) {
		themeChanged(cm);
		updateGutters(cm);
	}, true);
	option("keyMap", "default", function (cm, val, old) {
		var next = getKeyMap(val);
		var prev = old != Init && getKeyMap(old);
		if (prev && prev.detach) { prev.detach(cm, next); }
		if (next.attach) { next.attach(cm, prev || null); }
	});
	option("extraKeys", null);
	option("configureMouse", null);

	option("lineWrapping", false, wrappingChanged, true);
	option("gutters", [], function (cm, val) {
		cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);
		updateGutters(cm);
	}, true);
	option("fixedGutter", true, function (cm, val) {
		cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
		cm.refresh();
	}, true);
	option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
	option("scrollbarStyle", "native", function (cm) {
		initScrollbars(cm);
		updateScrollbars(cm);
		cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
		cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
	}, true);
	option("lineNumbers", false, function (cm, val) {
		cm.display.gutterSpecs = getGutters(cm.options.gutters, val);
		updateGutters(cm);
	}, true);
	option("firstLineNumber", 1, updateGutters, true);
	option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true);
	option("showCursorWhenSelecting", false, updateSelection, true);

	option("resetSelectionOnContextMenu", true);
	option("lineWiseCopyCut", true);
	option("pasteLinesPerSelection", true);
	option("selectionsMayTouch", false);

	option("readOnly", false, function (cm, val) {
		if (val == "nocursor") {
		onBlur(cm);
		cm.display.input.blur();
		}
		cm.display.input.readOnlyChanged(val);
	});

	option("screenReaderLabel", null, function (cm, val) {
		val = (val === '') ? null : val;
		cm.display.input.screenReaderLabelChanged(val);
	});

	option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
	option("dragDrop", true, dragDropChanged);
	option("allowDropFileTypes", null);

	option("cursorBlinkRate", 530);
	option("cursorScrollMargin", 0);
	option("cursorHeight", 1, updateSelection, true);
	option("singleCursorHeightPerLine", true, updateSelection, true);
	option("workTime", 100);
	option("workDelay", 100);
	option("flattenSpans", true, resetModeState, true);
	option("addModeClass", false, resetModeState, true);
	option("pollInterval", 100);
	option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
	option("historyEventDelay", 1250);
	option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
	option("maxHighlightLength", 10000, resetModeState, true);
	option("moveInputWithCursor", true, function (cm, val) {
		if (!val) { cm.display.input.resetPosition(); }
	});

	option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
	option("autofocus", null);
	option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
	option("phrases", null);
	}

	function dragDropChanged(cm, value, old) {
	var wasOn = old && old != Init;
	if (!value != !wasOn) {
		var funcs = cm.display.dragFunctions;
		var toggle = value ? on : off;
		toggle(cm.display.scroller, "dragstart", funcs.start);
		toggle(cm.display.scroller, "dragenter", funcs.enter);
		toggle(cm.display.scroller, "dragover", funcs.over);
		toggle(cm.display.scroller, "dragleave", funcs.leave);
		toggle(cm.display.scroller, "drop", funcs.drop);
	}
	}

	function wrappingChanged(cm) {
	if (cm.options.lineWrapping) {
		addClass(cm.display.wrapper, "CodeMirror-wrap");
		cm.display.sizer.style.minWidth = "";
		cm.display.sizerWidth = null;
	} else {
		rmClass(cm.display.wrapper, "CodeMirror-wrap");
		findMaxLine(cm);
	}
	estimateLineHeights(cm);
	regChange(cm);
	clearCaches(cm);
	setTimeout(function () { return updateScrollbars(cm); }, 100);
	}

	// A CodeMirror instance represents an editor. This is the object
	// that user code is usually dealing with.

	function CodeMirror(place, options) {
	var this$1 = this;

	if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }

	this.options = options = options ? copyObj(options) : {};
	// Determine effective options based on given values and defaults.
	copyObj(defaults, options, false);

	var doc = options.value;
	if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
	else if (options.mode) { doc.modeOption = options.mode; }
	this.doc = doc;

	var input = new CodeMirror.inputStyles[options.inputStyle](this);
	var display = this.display = new Display(place, doc, input, options);
	display.wrapper.CodeMirror = this;
	themeChanged(this);
	if (options.lineWrapping)
		{ this.display.wrapper.className += " CodeMirror-wrap"; }
	initScrollbars(this);

	this.state = {
		keyMaps: [],  // stores maps added by addKeyMap
		overlays: [], // highlighting overlays, as added by addOverlay
		modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
		overwrite: false,
		delayingBlurEvent: false,
		focused: false,
		suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
		pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
		selectingText: false,
		draggingText: false,
		highlight: new Delayed(), // stores highlight worker timeout
		keySeq: null,  // Unfinished key sequence
		specialChars: null
	};

	if (options.autofocus && !mobile) { display.input.focus(); }

	// Override magic textarea content restore that IE sometimes does
	// on our hidden textarea on reload
	if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }

	registerEventHandlers(this);
	ensureGlobalHandlers();

	startOperation(this);
	this.curOp.forceUpdate = true;
	attachDoc(this, doc);

	if ((options.autofocus && !mobile) || this.hasFocus())
		{ setTimeout(function () {
		if (this$1.hasFocus() && !this$1.state.focused) { onFocus(this$1); }
		}, 20); }
	else
		{ onBlur(this); }

	for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
		{ optionHandlers[opt](this, options[opt], Init); } }
	maybeUpdateLineNumberWidth(this);
	if (options.finishInit) { options.finishInit(this); }
	for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }
	endOperation(this);
	// Suppress optimizelegibility in Webkit, since it breaks text
	// measuring on line wrapping boundaries.
	if (webkit && options.lineWrapping &&
		getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
		{ display.lineDiv.style.textRendering = "auto"; }
	}

	// The default configuration options.
	CodeMirror.defaults = defaults;
	// Functions to run when options are changed.
	CodeMirror.optionHandlers = optionHandlers;

	// Attach the necessary event handlers when initializing the editor
	function registerEventHandlers(cm) {
	var d = cm.display;
	on(d.scroller, "mousedown", operation(cm, onMouseDown));
	// Older IE's will not fire a second mousedown for a double click
	if (ie && ie_version < 11)
		{ on(d.scroller, "dblclick", operation(cm, function (e) {
		if (signalDOMEvent(cm, e)) { return }
		var pos = posFromMouse(cm, e);
		if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
		e_preventDefault(e);
		var word = cm.findWordAt(pos);
		extendSelection(cm.doc, word.anchor, word.head);
		})); }
	else
		{ on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
	// Some browsers fire contextmenu *after* opening the menu, at
	// which point we can't mess with it anymore. Context menu is
	// handled in onMouseDown for these browsers.
	on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
	on(d.input.getField(), "contextmenu", function (e) {
		if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }
	});

	// Used to suppress mouse event handling when a touch happens
	var touchFinished, prevTouch = {end: 0};
	function finishTouch() {
		if (d.activeTouch) {
		touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
		prevTouch = d.activeTouch;
		prevTouch.end = +new Date;
		}
	}
	function isMouseLikeTouchEvent(e) {
		if (e.touches.length != 1) { return false }
		var touch = e.touches[0];
		return touch.radiusX <= 1 && touch.radiusY <= 1
	}
	function farAway(touch, other) {
		if (other.left == null) { return true }
		var dx = other.left - touch.left, dy = other.top - touch.top;
		return dx * dx + dy * dy > 20 * 20
	}
	on(d.scroller, "touchstart", function (e) {
		if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
		d.input.ensurePolled();
		clearTimeout(touchFinished);
		var now = +new Date;
		d.activeTouch = {start: now, moved: false,
						prev: now - prevTouch.end <= 300 ? prevTouch : null};
		if (e.touches.length == 1) {
			d.activeTouch.left = e.touches[0].pageX;
			d.activeTouch.top = e.touches[0].pageY;
		}
		}
	});
	on(d.scroller, "touchmove", function () {
		if (d.activeTouch) { d.activeTouch.moved = true; }
	});
	on(d.scroller, "touchend", function (e) {
		var touch = d.activeTouch;
		if (touch && !eventInWidget(d, e) && touch.left != null &&
			!touch.moved && new Date - touch.start < 300) {
		var pos = cm.coordsChar(d.activeTouch, "page"), range;
		if (!touch.prev || farAway(touch, touch.prev)) // Single tap
			{ range = new Range(pos, pos); }
		else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
			{ range = cm.findWordAt(pos); }
		else // Triple tap
			{ range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
		cm.setSelection(range.anchor, range.head);
		cm.focus();
		e_preventDefault(e);
		}
		finishTouch();
	});
	on(d.scroller, "touchcancel", finishTouch);

	// Sync scrolling between fake scrollbars and real scrollable
	// area, ensure viewport is updated when scrolling.
	on(d.scroller, "scroll", function () {
		if (d.scroller.clientHeight) {
		updateScrollTop(cm, d.scroller.scrollTop);
		setScrollLeft(cm, d.scroller.scrollLeft, true);
		signal(cm, "scroll", cm);
		}
	});

	// Listen to wheel events in order to try and update the viewport on time.
	on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
	on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });

	// Prevent wrapper from ever scrolling
	on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });

	d.dragFunctions = {
		enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
		over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
		start: function (e) { return onDragStart(cm, e); },
		drop: operation(cm, onDrop),
		leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
	};

	var inp = d.input.getField();
	on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); });
	on(inp, "keydown", operation(cm, onKeyDown));
	on(inp, "keypress", operation(cm, onKeyPress));
	on(inp, "focus", function (e) { return onFocus(cm, e); });
	on(inp, "blur", function (e) { return onBlur(cm, e); });
	}

	var initHooks = [];
	CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };

	// Indent the given line. The how parameter can be "smart",
	// "add"/null, "subtract", or "prev". When aggressive is false
	// (typically set to true for forced single-line indents), empty
	// lines are not indented, and places where the mode returns Pass
	// are left alone.
	function indentLine(cm, n, how, aggressive) {
	var doc = cm.doc, state;
	if (how == null) { how = "add"; }
	if (how == "smart") {
		// Fall back to "prev" when the mode doesn't have an indentation
		// method.
		if (!doc.mode.indent) { how = "prev"; }
		else { state = getContextBefore(cm, n).state; }
	}

	var tabSize = cm.options.tabSize;
	var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
	if (line.stateAfter) { line.stateAfter = null; }
	var curSpaceString = line.text.match(/^\s*/)[0], indentation;
	if (!aggressive && !/\S/.test(line.text)) {
		indentation = 0;
		how = "not";
	} else if (how == "smart") {
		indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
		if (indentation == Pass || indentation > 150) {
		if (!aggressive) { return }
		how = "prev";
		}
	}
	if (how == "prev") {
		if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }
		else { indentation = 0; }
	} else if (how == "add") {
		indentation = curSpace + cm.options.indentUnit;
	} else if (how == "subtract") {
		indentation = curSpace - cm.options.indentUnit;
	} else if (typeof how == "number") {
		indentation = curSpace + how;
	}
	indentation = Math.max(0, indentation);

	var indentString = "", pos = 0;
	if (cm.options.indentWithTabs)
		{ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} }
	if (pos < indentation) { indentString += spaceStr(indentation - pos); }

	if (indentString != curSpaceString) {
		replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
		line.stateAfter = null;
		return true
	} else {
		// Ensure that, if the cursor was in the whitespace at the start
		// of the line, it is moved to the end of that space.
		for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
		var range = doc.sel.ranges[i$1];
		if (range.head.line == n && range.head.ch < curSpaceString.length) {
			var pos$1 = Pos(n, curSpaceString.length);
			replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
			break
		}
		}
	}
	}

	// This will be set to a {lineWise: bool, text: [string]} object, so
	// that, when pasting, we know what kind of selections the copied
	// text was made out of.
	var lastCopied = null;

	function setLastCopied(newLastCopied) {
	lastCopied = newLastCopied;
	}

	function applyTextInput(cm, inserted, deleted, sel, origin) {
	var doc = cm.doc;
	cm.display.shift = false;
	if (!sel) { sel = doc.sel; }

	var recent = +new Date - 200;
	var paste = origin == "paste" || cm.state.pasteIncoming > recent;
	var textLines = splitLinesAuto(inserted), multiPaste = null;
	// When pasting N lines into N selections, insert one line per selection
	if (paste && sel.ranges.length > 1) {
		if (lastCopied && lastCopied.text.join("\n") == inserted) {
		if (sel.ranges.length % lastCopied.text.length == 0) {
			multiPaste = [];
			for (var i = 0; i < lastCopied.text.length; i++)
			{ multiPaste.push(doc.splitLines(lastCopied.text[i])); }
		}
		} else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
		multiPaste = map(textLines, function (l) { return [l]; });
		}
	}

	var updateInput = cm.curOp.updateInput;
	// Normal behavior is to insert the new text into every selection
	for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
		var range = sel.ranges[i$1];
		var from = range.from(), to = range.to();
		if (range.empty()) {
		if (deleted && deleted > 0) // Handle deletion
			{ from = Pos(from.line, from.ch - deleted); }
		else if (cm.state.overwrite && !paste) // Handle overwrite
			{ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }
		else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n"))
			{ from = to = Pos(from.line, 0); }
		}
		var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
						origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")};
		makeChange(cm.doc, changeEvent);
		signalLater(cm, "inputRead", cm, changeEvent);
	}
	if (inserted && !paste)
		{ triggerElectric(cm, inserted); }

	ensureCursorVisible(cm);
	if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }
	cm.curOp.typing = true;
	cm.state.pasteIncoming = cm.state.cutIncoming = -1;
	}

	function handlePaste(e, cm) {
	var pasted = e.clipboardData && e.clipboardData.getData("Text");
	if (pasted) {
		e.preventDefault();
		if (!cm.isReadOnly() && !cm.options.disableInput && cm.hasFocus())
		{ runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); }
		return true
	}
	}

	function triggerElectric(cm, inserted) {
	// When an 'electric' character is inserted, immediately trigger a reindent
	if (!cm.options.electricChars || !cm.options.smartIndent) { return }
	var sel = cm.doc.sel;

	for (var i = sel.ranges.length - 1; i >= 0; i--) {
		var range = sel.ranges[i];
		if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
		var mode = cm.getModeAt(range.head);
		var indented = false;
		if (mode.electricChars) {
		for (var j = 0; j < mode.electricChars.length; j++)
			{ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
			indented = indentLine(cm, range.head.line, "smart");
			break
			} }
		} else if (mode.electricInput) {
		if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
			{ indented = indentLine(cm, range.head.line, "smart"); }
		}
		if (indented) { signalLater(cm, "electricInput", cm, range.head.line); }
	}
	}

	function copyableRanges(cm) {
	var text = [], ranges = [];
	for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
		var line = cm.doc.sel.ranges[i].head.line;
		var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
		ranges.push(lineRange);
		text.push(cm.getRange(lineRange.anchor, lineRange.head));
	}
	return {text: text, ranges: ranges}
	}

	function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
	field.setAttribute("autocorrect", autocorrect ? "" : "off");
	field.setAttribute("autocapitalize", autocapitalize ? "" : "off");
	field.setAttribute("spellcheck", !!spellcheck);
	}

	function hiddenTextarea() {
	var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; min-height: 1em; outline: none");
	var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
	// The textarea is kept positioned near the cursor to prevent the
	// fact that it'll be scrolled into view on input from scrolling
	// our fake cursor out of view. On webkit, when wrap=off, paste is
	// very slow. So make the area wide instead.
	if (webkit) { te.style.width = "1000px"; }
	else { te.setAttribute("wrap", "off"); }
	// If border: 0; -- iOS fails to open keyboard (issue #1287)
	if (ios) { te.style.border = "1px solid black"; }
	disableBrowserMagic(te);
	return div
	}

	// The publicly visible API. Note that methodOp(f) means
	// 'wrap f in an operation, performed on its `this` parameter'.

	// This is not the complete set of editor methods. Most of the
	// methods defined on the Doc type are also injected into
	// CodeMirror.prototype, for backwards compatibility and
	// convenience.

	function addEditorMethods(CodeMirror) {
	var optionHandlers = CodeMirror.optionHandlers;

	var helpers = CodeMirror.helpers = {};

	CodeMirror.prototype = {
		constructor: CodeMirror,
		focus: function(){win(this).focus(); this.display.input.focus();},

		setOption: function(option, value) {
		var options = this.options, old = options[option];
		if (options[option] == value && option != "mode") { return }
		options[option] = value;
		if (optionHandlers.hasOwnProperty(option))
			{ operation(this, optionHandlers[option])(this, value, old); }
		signal(this, "optionChange", this, option);
		},

		getOption: function(option) {return this.options[option]},
		getDoc: function() {return this.doc},

		addKeyMap: function(map, bottom) {
		this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
		},
		removeKeyMap: function(map) {
		var maps = this.state.keyMaps;
		for (var i = 0; i < maps.length; ++i)
			{ if (maps[i] == map || maps[i].name == map) {
			maps.splice(i, 1);
			return true
			} }
		},

		addOverlay: methodOp(function(spec, options) {
		var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
		if (mode.startState) { throw new Error("Overlays may not be stateful.") }
		insertSorted(this.state.overlays,
					{mode: mode, modeSpec: spec, opaque: options && options.opaque,
						priority: (options && options.priority) || 0},
					function (overlay) { return overlay.priority; });
		this.state.modeGen++;
		regChange(this);
		}),
		removeOverlay: methodOp(function(spec) {
		var overlays = this.state.overlays;
		for (var i = 0; i < overlays.length; ++i) {
			var cur = overlays[i].modeSpec;
			if (cur == spec || typeof spec == "string" && cur.name == spec) {
			overlays.splice(i, 1);
			this.state.modeGen++;
			regChange(this);
			return
			}
		}
		}),

		indentLine: methodOp(function(n, dir, aggressive) {
		if (typeof dir != "string" && typeof dir != "number") {
			if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
			else { dir = dir ? "add" : "subtract"; }
		}
		if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
		}),
		indentSelection: methodOp(function(how) {
		var ranges = this.doc.sel.ranges, end = -1;
		for (var i = 0; i < ranges.length; i++) {
			var range = ranges[i];
			if (!range.empty()) {
			var from = range.from(), to = range.to();
			var start = Math.max(end, from.line);
			end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
			for (var j = start; j < end; ++j)
				{ indentLine(this, j, how); }
			var newRanges = this.doc.sel.ranges;
			if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
				{ replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
			} else if (range.head.line > end) {
			indentLine(this, range.head.line, how, true);
			end = range.head.line;
			if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }
			}
		}
		}),

		// Fetch the parser token for a given character. Useful for hacks
		// that want to inspect the mode state (say, for completion).
		getTokenAt: function(pos, precise) {
		return takeToken(this, pos, precise)
		},

		getLineTokens: function(line, precise) {
		return takeToken(this, Pos(line), precise, true)
		},

		getTokenTypeAt: function(pos) {
		pos = clipPos(this.doc, pos);
		var styles = getLineStyles(this, getLine(this.doc, pos.line));
		var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
		var type;
		if (ch == 0) { type = styles[2]; }
		else { for (;;) {
			var mid = (before + after) >> 1;
			if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
			else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
			else { type = styles[mid * 2 + 2]; break }
		} }
		var cut = type ? type.indexOf("overlay ") : -1;
		return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
		},

		getModeAt: function(pos) {
		var mode = this.doc.mode;
		if (!mode.innerMode) { return mode }
		return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
		},

		getHelper: function(pos, type) {
		return this.getHelpers(pos, type)[0]
		},

		getHelpers: function(pos, type) {
		var found = [];
		if (!helpers.hasOwnProperty(type)) { return found }
		var help = helpers[type], mode = this.getModeAt(pos);
		if (typeof mode[type] == "string") {
			if (help[mode[type]]) { found.push(help[mode[type]]); }
		} else if (mode[type]) {
			for (var i = 0; i < mode[type].length; i++) {
			var val = help[mode[type][i]];
			if (val) { found.push(val); }
			}
		} else if (mode.helperType && help[mode.helperType]) {
			found.push(help[mode.helperType]);
		} else if (help[mode.name]) {
			found.push(help[mode.name]);
		}
		for (var i$1 = 0; i$1 < help._global.length; i$1++) {
			var cur = help._global[i$1];
			if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
			{ found.push(cur.val); }
		}
		return found
		},

		getStateAfter: function(line, precise) {
		var doc = this.doc;
		line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
		return getContextBefore(this, line + 1, precise).state
		},

		cursorCoords: function(start, mode) {
		var pos, range = this.doc.sel.primary();
		if (start == null) { pos = range.head; }
		else if (typeof start == "object") { pos = clipPos(this.doc, start); }
		else { pos = start ? range.from() : range.to(); }
		return cursorCoords(this, pos, mode || "page")
		},

		charCoords: function(pos, mode) {
		return charCoords(this, clipPos(this.doc, pos), mode || "page")
		},

		coordsChar: function(coords, mode) {
		coords = fromCoordSystem(this, coords, mode || "page");
		return coordsChar(this, coords.left, coords.top)
		},

		lineAtHeight: function(height, mode) {
		height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
		return lineAtHeight(this.doc, height + this.display.viewOffset)
		},
		heightAtLine: function(line, mode, includeWidgets) {
		var end = false, lineObj;
		if (typeof line == "number") {
			var last = this.doc.first + this.doc.size - 1;
			if (line < this.doc.first) { line = this.doc.first; }
			else if (line > last) { line = last; end = true; }
			lineObj = getLine(this.doc, line);
		} else {
			lineObj = line;
		}
		return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
			(end ? this.doc.height - heightAtLine(lineObj) : 0)
		},

		defaultTextHeight: function() { return textHeight(this.display) },
		defaultCharWidth: function() { return charWidth(this.display) },

		getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},

		addWidget: function(pos, node, scroll, vert, horiz) {
		var display = this.display;
		pos = cursorCoords(this, clipPos(this.doc, pos));
		var top = pos.bottom, left = pos.left;
		node.style.position = "absolute";
		node.setAttribute("cm-ignore-events", "true");
		this.display.input.setUneditable(node);
		display.sizer.appendChild(node);
		if (vert == "over") {
			top = pos.top;
		} else if (vert == "above" || vert == "near") {
			var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
			hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
			// Default to positioning above (if specified and possible); otherwise default to positioning below
			if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
			{ top = pos.top - node.offsetHeight; }
			else if (pos.bottom + node.offsetHeight <= vspace)
			{ top = pos.bottom; }
			if (left + node.offsetWidth > hspace)
			{ left = hspace - node.offsetWidth; }
		}
		node.style.top = top + "px";
		node.style.left = node.style.right = "";
		if (horiz == "right") {
			left = display.sizer.clientWidth - node.offsetWidth;
			node.style.right = "0px";
		} else {
			if (horiz == "left") { left = 0; }
			else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
			node.style.left = left + "px";
		}
		if (scroll)
			{ scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
		},

		triggerOnKeyDown: methodOp(onKeyDown),
		triggerOnKeyPress: methodOp(onKeyPress),
		triggerOnKeyUp: onKeyUp,
		triggerOnMouseDown: methodOp(onMouseDown),

		execCommand: function(cmd) {
		if (commands.hasOwnProperty(cmd))
			{ return commands[cmd].call(null, this) }
		},

		triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),

		findPosH: function(from, amount, unit, visually) {
		var dir = 1;
		if (amount < 0) { dir = -1; amount = -amount; }
		var cur = clipPos(this.doc, from);
		for (var i = 0; i < amount; ++i) {
			cur = findPosH(this.doc, cur, dir, unit, visually);
			if (cur.hitSide) { break }
		}
		return cur
		},

		moveH: methodOp(function(dir, unit) {
		var this$1 = this;

		this.extendSelectionsBy(function (range) {
			if (this$1.display.shift || this$1.doc.extend || range.empty())
			{ return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
			else
			{ return dir < 0 ? range.from() : range.to() }
		}, sel_move);
		}),

		deleteH: methodOp(function(dir, unit) {
		var sel = this.doc.sel, doc = this.doc;
		if (sel.somethingSelected())
			{ doc.replaceSelection("", null, "+delete"); }
		else
			{ deleteNearSelection(this, function (range) {
			var other = findPosH(doc, range.head, dir, unit, false);
			return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
			}); }
		}),

		findPosV: function(from, amount, unit, goalColumn) {
		var dir = 1, x = goalColumn;
		if (amount < 0) { dir = -1; amount = -amount; }
		var cur = clipPos(this.doc, from);
		for (var i = 0; i < amount; ++i) {
			var coords = cursorCoords(this, cur, "div");
			if (x == null) { x = coords.left; }
			else { coords.left = x; }
			cur = findPosV(this, coords, dir, unit);
			if (cur.hitSide) { break }
		}
		return cur
		},

		moveV: methodOp(function(dir, unit) {
		var this$1 = this;

		var doc = this.doc, goals = [];
		var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
		doc.extendSelectionsBy(function (range) {
			if (collapse)
			{ return dir < 0 ? range.from() : range.to() }
			var headPos = cursorCoords(this$1, range.head, "div");
			if (range.goalColumn != null) { headPos.left = range.goalColumn; }
			goals.push(headPos.left);
			var pos = findPosV(this$1, headPos, dir, unit);
			if (unit == "page" && range == doc.sel.primary())
			{ addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
			return pos
		}, sel_move);
		if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
			{ doc.sel.ranges[i].goalColumn = goals[i]; } }
		}),

		// Find the word at the given position (as returned by coordsChar).
		findWordAt: function(pos) {
		var doc = this.doc, line = getLine(doc, pos.line).text;
		var start = pos.ch, end = pos.ch;
		if (line) {
			var helper = this.getHelper(pos, "wordChars");
			if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
			var startChar = line.charAt(start);
			var check = isWordChar(startChar, helper)
			? function (ch) { return isWordChar(ch, helper); }
			: /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
			: function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
			while (start > 0 && check(line.charAt(start - 1))) { --start; }
			while (end < line.length && check(line.charAt(end))) { ++end; }
		}
		return new Range(Pos(pos.line, start), Pos(pos.line, end))
		},

		toggleOverwrite: function(value) {
		if (value != null && value == this.state.overwrite) { return }
		if (this.state.overwrite = !this.state.overwrite)
			{ addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
		else
			{ rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }

		signal(this, "overwriteToggle", this, this.state.overwrite);
		},
		hasFocus: function() { return this.display.input.getField() == activeElt(doc(this)) },
		isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },

		scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
		getScrollInfo: function() {
		var scroller = this.display.scroller;
		return {left: scroller.scrollLeft, top: scroller.scrollTop,
				height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
				width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
				clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
		},

		scrollIntoView: methodOp(function(range, margin) {
		if (range == null) {
			range = {from: this.doc.sel.primary().head, to: null};
			if (margin == null) { margin = this.options.cursorScrollMargin; }
		} else if (typeof range == "number") {
			range = {from: Pos(range, 0), to: null};
		} else if (range.from == null) {
			range = {from: range, to: null};
		}
		if (!range.to) { range.to = range.from; }
		range.margin = margin || 0;

		if (range.from.line != null) {
			scrollToRange(this, range);
		} else {
			scrollToCoordsRange(this, range.from, range.to, range.margin);
		}
		}),

		setSize: methodOp(function(width, height) {
		var this$1 = this;

		var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; };
		if (width != null) { this.display.wrapper.style.width = interpret(width); }
		if (height != null) { this.display.wrapper.style.height = interpret(height); }
		if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
		var lineNo = this.display.viewFrom;
		this.doc.iter(lineNo, this.display.viewTo, function (line) {
			if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
			{ if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
			++lineNo;
		});
		this.curOp.forceUpdate = true;
		signal(this, "refresh", this);
		}),

		operation: function(f){return runInOp(this, f)},
		startOperation: function(){return startOperation(this)},
		endOperation: function(){return endOperation(this)},

		refresh: methodOp(function() {
		var oldHeight = this.display.cachedTextHeight;
		regChange(this);
		this.curOp.forceUpdate = true;
		clearCaches(this);
		scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
		updateGutterSpace(this.display);
		if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping)
			{ estimateLineHeights(this); }
		signal(this, "refresh", this);
		}),

		swapDoc: methodOp(function(doc) {
		var old = this.doc;
		old.cm = null;
		// Cancel the current text selection if any (#5821)
		if (this.state.selectingText) { this.state.selectingText(); }
		attachDoc(this, doc);
		clearCaches(this);
		this.display.input.reset();
		scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
		this.curOp.forceScroll = true;
		signalLater(this, "swapDoc", this, old);
		return old
		}),

		phrase: function(phraseText) {
		var phrases = this.options.phrases;
		return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
		},

		getInputField: function(){return this.display.input.getField()},
		getWrapperElement: function(){return this.display.wrapper},
		getScrollerElement: function(){return this.display.scroller},
		getGutterElement: function(){return this.display.gutters}
	};
	eventMixin(CodeMirror);

	CodeMirror.registerHelper = function(type, name, value) {
		if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
		helpers[type][name] = value;
	};
	CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
		CodeMirror.registerHelper(type, name, value);
		helpers[type]._global.push({pred: predicate, val: value});
	};
	}

	// Used for horizontal relative motion. Dir is -1 or 1 (left or
	// right), unit can be "codepoint", "char", "column" (like char, but
	// doesn't cross line boundaries), "word" (across next word), or
	// "group" (to the start of next group of word or
	// non-word-non-whitespace chars). The visually param controls
	// whether, in right-to-left text, direction 1 means to move towards
	// the next index in the string, or towards the character to the right
	// of the current position. The resulting position will have a
	// hitSide=true property if it reached the end of the document.
	function findPosH(doc, pos, dir, unit, visually) {
	var oldPos = pos;
	var origDir = dir;
	var lineObj = getLine(doc, pos.line);
	var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
	function findNextLine() {
		var l = pos.line + lineDir;
		if (l < doc.first || l >= doc.first + doc.size) { return false }
		pos = new Pos(l, pos.ch, pos.sticky);
		return lineObj = getLine(doc, l)
	}
	function moveOnce(boundToLine) {
		var next;
		if (unit == "codepoint") {
		var ch = lineObj.text.charCodeAt(pos.ch + (dir > 0 ? 0 : -1));
		if (isNaN(ch)) {
			next = null;
		} else {
			var astral = dir > 0 ? ch >= 0xD800 && ch < 0xDC00 : ch >= 0xDC00 && ch < 0xDFFF;
			next = new Pos(pos.line, Math.max(0, Math.min(lineObj.text.length, pos.ch + dir * (astral ? 2 : 1))), -dir);
		}
		} else if (visually) {
		next = moveVisually(doc.cm, lineObj, pos, dir);
		} else {
		next = moveLogically(lineObj, pos, dir);
		}
		if (next == null) {
		if (!boundToLine && findNextLine())
			{ pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }
		else
			{ return false }
		} else {
		pos = next;
		}
		return true
	}

	if (unit == "char" || unit == "codepoint") {
		moveOnce();
	} else if (unit == "column") {
		moveOnce(true);
	} else if (unit == "word" || unit == "group") {
		var sawType = null, group = unit == "group";
		var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
		for (var first = true;; first = false) {
		if (dir < 0 && !moveOnce(!first)) { break }
		var cur = lineObj.text.charAt(pos.ch) || "\n";
		var type = isWordChar(cur, helper) ? "w"
			: group && cur == "\n" ? "n"
			: !group || /\s/.test(cur) ? null
			: "p";
		if (group && !first && !type) { type = "s"; }
		if (sawType && sawType != type) {
			if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
			break
		}

		if (type) { sawType = type; }
		if (dir > 0 && !moveOnce(!first)) { break }
		}
	}
	var result = skipAtomic(doc, pos, oldPos, origDir, true);
	if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
	return result
	}

	// For relative vertical movement. Dir may be -1 or 1. Unit can be
	// "page" or "line". The resulting position will have a hitSide=true
	// property if it reached the end of the document.
	function findPosV(cm, pos, dir, unit) {
	var doc = cm.doc, x = pos.left, y;
	if (unit == "page") {
		var pageSize = Math.min(cm.display.wrapper.clientHeight, win(cm).innerHeight || doc(cm).documentElement.clientHeight);
		var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
		y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;

	} else if (unit == "line") {
		y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
	}
	var target;
	for (;;) {
		target = coordsChar(cm, x, y);
		if (!target.outside) { break }
		if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
		y += dir * 5;
	}
	return target
	}

	// CONTENTEDITABLE INPUT STYLE

	var ContentEditableInput = function(cm) {
	this.cm = cm;
	this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
	this.polling = new Delayed();
	this.composing = null;
	this.gracePeriod = false;
	this.readDOMTimeout = null;
	};

	ContentEditableInput.prototype.init = function (display) {
		var this$1 = this;

	var input = this, cm = input.cm;
	var div = input.div = display.lineDiv;
	div.contentEditable = true;
	disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);

	function belongsToInput(e) {
		for (var t = e.target; t; t = t.parentNode) {
		if (t == div) { return true }
		if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break }
		}
		return false
	}

	on(div, "paste", function (e) {
		if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
		// IE doesn't fire input events, so we schedule a read for the pasted content in this way
		if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }
	});

	on(div, "compositionstart", function (e) {
		this$1.composing = {data: e.data, done: false};
	});
	on(div, "compositionupdate", function (e) {
		if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }
	});
	on(div, "compositionend", function (e) {
		if (this$1.composing) {
		if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }
		this$1.composing.done = true;
		}
	});

	on(div, "touchstart", function () { return input.forceCompositionEnd(); });

	on(div, "input", function () {
		if (!this$1.composing) { this$1.readFromDOMSoon(); }
	});

	function onCopyCut(e) {
		if (!belongsToInput(e) || signalDOMEvent(cm, e)) { return }
		if (cm.somethingSelected()) {
		setLastCopied({lineWise: false, text: cm.getSelections()});
		if (e.type == "cut") { cm.replaceSelection("", null, "cut"); }
		} else if (!cm.options.lineWiseCopyCut) {
		return
		} else {
		var ranges = copyableRanges(cm);
		setLastCopied({lineWise: true, text: ranges.text});
		if (e.type == "cut") {
			cm.operation(function () {
			cm.setSelections(ranges.ranges, 0, sel_dontScroll);
			cm.replaceSelection("", null, "cut");
			});
		}
		}
		if (e.clipboardData) {
		e.clipboardData.clearData();
		var content = lastCopied.text.join("\n");
		// iOS exposes the clipboard API, but seems to discard content inserted into it
		e.clipboardData.setData("Text", content);
		if (e.clipboardData.getData("Text") == content) {
			e.preventDefault();
			return
		}
		}
		// Old-fashioned briefly-focus-a-textarea hack
		var kludge = hiddenTextarea(), te = kludge.firstChild;
		cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
		te.value = lastCopied.text.join("\n");
		var hadFocus = activeElt(div.ownerDocument);
		selectInput(te);
		setTimeout(function () {
		cm.display.lineSpace.removeChild(kludge);
		hadFocus.focus();
		if (hadFocus == div) { input.showPrimarySelection(); }
		}, 50);
	}
	on(div, "copy", onCopyCut);
	on(div, "cut", onCopyCut);
	};

	ContentEditableInput.prototype.screenReaderLabelChanged = function (label) {
	// Label for screenreaders, accessibility
	if(label) {
		this.div.setAttribute('aria-label', label);
	} else {
		this.div.removeAttribute('aria-label');
	}
	};

	ContentEditableInput.prototype.prepareSelection = function () {
	var result = prepareSelection(this.cm, false);
	result.focus = activeElt(this.div.ownerDocument) == this.div;
	return result
	};

	ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
	if (!info || !this.cm.display.view.length) { return }
	if (info.focus || takeFocus) { this.showPrimarySelection(); }
	this.showMultipleSelections(info);
	};

	ContentEditableInput.prototype.getSelection = function () {
	return this.cm.display.wrapper.ownerDocument.getSelection()
	};

	ContentEditableInput.prototype.showPrimarySelection = function () {
	var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
	var from = prim.from(), to = prim.to();

	if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
		sel.removeAllRanges();
		return
	}

	var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
	var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
	if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
		cmp(minPos(curAnchor, curFocus), from) == 0 &&
		cmp(maxPos(curAnchor, curFocus), to) == 0)
		{ return }

	var view = cm.display.view;
	var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
		{node: view[0].measure.map[2], offset: 0};
	var end = to.line < cm.display.viewTo && posToDOM(cm, to);
	if (!end) {
		var measure = view[view.length - 1].measure;
		var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
		end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
	}

	if (!start || !end) {
		sel.removeAllRanges();
		return
	}

	var old = sel.rangeCount && sel.getRangeAt(0), rng;
	try { rng = range(start.node, start.offset, end.offset, end.node); }
	catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
	if (rng) {
		if (!gecko && cm.state.focused) {
		sel.collapse(start.node, start.offset);
		if (!rng.collapsed) {
			sel.removeAllRanges();
			sel.addRange(rng);
		}
		} else {
		sel.removeAllRanges();
		sel.addRange(rng);
		}
		if (old && sel.anchorNode == null) { sel.addRange(old); }
		else if (gecko) { this.startGracePeriod(); }
	}
	this.rememberSelection();
	};

	ContentEditableInput.prototype.startGracePeriod = function () {
		var this$1 = this;

	clearTimeout(this.gracePeriod);
	this.gracePeriod = setTimeout(function () {
		this$1.gracePeriod = false;
		if (this$1.selectionChanged())
		{ this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }
	}, 20);
	};

	ContentEditableInput.prototype.showMultipleSelections = function (info) {
	removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
	removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
	};

	ContentEditableInput.prototype.rememberSelection = function () {
	var sel = this.getSelection();
	this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
	this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
	};

	ContentEditableInput.prototype.selectionInEditor = function () {
	var sel = this.getSelection();
	if (!sel.rangeCount) { return false }
	var node = sel.getRangeAt(0).commonAncestorContainer;
	return contains(this.div, node)
	};

	ContentEditableInput.prototype.focus = function () {
	if (this.cm.options.readOnly != "nocursor") {
		if (!this.selectionInEditor() || activeElt(this.div.ownerDocument) != this.div)
		{ this.showSelection(this.prepareSelection(), true); }
		this.div.focus();
	}
	};
	ContentEditableInput.prototype.blur = function () { this.div.blur(); };
	ContentEditableInput.prototype.getField = function () { return this.div };

	ContentEditableInput.prototype.supportsTouch = function () { return true };

	ContentEditableInput.prototype.receivedFocus = function () {
		var this$1 = this;

	var input = this;
	if (this.selectionInEditor())
		{ setTimeout(function () { return this$1.pollSelection(); }, 20); }
	else
		{ runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }

	function poll() {
		if (input.cm.state.focused) {
		input.pollSelection();
		input.polling.set(input.cm.options.pollInterval, poll);
		}
	}
	this.polling.set(this.cm.options.pollInterval, poll);
	};

	ContentEditableInput.prototype.selectionChanged = function () {
	var sel = this.getSelection();
	return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
		sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
	};

	ContentEditableInput.prototype.pollSelection = function () {
	if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
	var sel = this.getSelection(), cm = this.cm;
	// On Android Chrome (version 56, at least), backspacing into an
	// uneditable block element will put the cursor in that element,
	// and then, because it's not editable, hide the virtual keyboard.
	// Because Android doesn't allow us to actually detect backspace
	// presses in a sane way, this code checks for when that happens
	// and simulates a backspace press in this case.
	if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
		this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
		this.blur();
		this.focus();
		return
	}
	if (this.composing) { return }
	this.rememberSelection();
	var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
	var head = domToPos(cm, sel.focusNode, sel.focusOffset);
	if (anchor && head) { runInOp(cm, function () {
		setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
		if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
	}); }
	};

	ContentEditableInput.prototype.pollContent = function () {
	if (this.readDOMTimeout != null) {
		clearTimeout(this.readDOMTimeout);
		this.readDOMTimeout = null;
	}

	var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
	var from = sel.from(), to = sel.to();
	if (from.ch == 0 && from.line > cm.firstLine())
		{ from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }
	if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
		{ to = Pos(to.line + 1, 0); }
	if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }

	var fromIndex, fromLine, fromNode;
	if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
		fromLine = lineNo(display.view[0].line);
		fromNode = display.view[0].node;
	} else {
		fromLine = lineNo(display.view[fromIndex].line);
		fromNode = display.view[fromIndex - 1].node.nextSibling;
	}
	var toIndex = findViewIndex(cm, to.line);
	var toLine, toNode;
	if (toIndex == display.view.length - 1) {
		toLine = display.viewTo - 1;
		toNode = display.lineDiv.lastChild;
	} else {
		toLine = lineNo(display.view[toIndex + 1].line) - 1;
		toNode = display.view[toIndex + 1].node.previousSibling;
	}

	if (!fromNode) { return false }
	var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
	var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
	while (newText.length > 1 && oldText.length > 1) {
		if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
		else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
		else { break }
	}

	var cutFront = 0, cutEnd = 0;
	var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
	while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
		{ ++cutFront; }
	var newBot = lst(newText), oldBot = lst(oldText);
	var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
							oldBot.length - (oldText.length == 1 ? cutFront : 0));
	while (cutEnd < maxCutEnd &&
			newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
		{ ++cutEnd; }
	// Try to move start of change to start of selection if ambiguous
	if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
		while (cutFront && cutFront > from.ch &&
			newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
		cutFront--;
		cutEnd++;
		}
	}

	newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
	newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");

	var chFrom = Pos(fromLine, cutFront);
	var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
	if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
		replaceRange(cm.doc, newText, chFrom, chTo, "+input");
		return true
	}
	};

	ContentEditableInput.prototype.ensurePolled = function () {
	this.forceCompositionEnd();
	};
	ContentEditableInput.prototype.reset = function () {
	this.forceCompositionEnd();
	};
	ContentEditableInput.prototype.forceCompositionEnd = function () {
	if (!this.composing) { return }
	clearTimeout(this.readDOMTimeout);
	this.composing = null;
	this.updateFromDOM();
	this.div.blur();
	this.div.focus();
	};
	ContentEditableInput.prototype.readFromDOMSoon = function () {
		var this$1 = this;

	if (this.readDOMTimeout != null) { return }
	this.readDOMTimeout = setTimeout(function () {
		this$1.readDOMTimeout = null;
		if (this$1.composing) {
		if (this$1.composing.done) { this$1.composing = null; }
		else { return }
		}
		this$1.updateFromDOM();
	}, 80);
	};

	ContentEditableInput.prototype.updateFromDOM = function () {
		var this$1 = this;

	if (this.cm.isReadOnly() || !this.pollContent())
		{ runInOp(this.cm, function () { return regChange(this$1.cm); }); }
	};

	ContentEditableInput.prototype.setUneditable = function (node) {
	node.contentEditable = "false";
	};

	ContentEditableInput.prototype.onKeyPress = function (e) {
	if (e.charCode == 0 || this.composing) { return }
	e.preventDefault();
	if (!this.cm.isReadOnly())
		{ operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
	};

	ContentEditableInput.prototype.readOnlyChanged = function (val) {
	this.div.contentEditable = String(val != "nocursor");
	};

	ContentEditableInput.prototype.onContextMenu = function () {};
	ContentEditableInput.prototype.resetPosition = function () {};

	ContentEditableInput.prototype.needsContentAttribute = true;

	function posToDOM(cm, pos) {
	var view = findViewForLine(cm, pos.line);
	if (!view || view.hidden) { return null }
	var line = getLine(cm.doc, pos.line);
	var info = mapFromLineView(view, line, pos.line);

	var order = getOrder(line, cm.doc.direction), side = "left";
	if (order) {
		var partPos = getBidiPartAt(order, pos.ch);
		side = partPos % 2 ? "right" : "left";
	}
	var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
	result.offset = result.collapse == "right" ? result.end : result.start;
	return result
	}

	function isInGutter(node) {
	for (var scan = node; scan; scan = scan.parentNode)
		{ if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
	return false
	}

	function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }

	function domTextBetween(cm, from, to, fromLine, toLine) {
	var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;
	function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
	function close() {
		if (closing) {
		text += lineSep;
		if (extraLinebreak) { text += lineSep; }
		closing = extraLinebreak = false;
		}
	}
	function addText(str) {
		if (str) {
		close();
		text += str;
		}
	}
	function walk(node) {
		if (node.nodeType == 1) {
		var cmText = node.getAttribute("cm-text");
		if (cmText) {
			addText(cmText);
			return
		}
		var markerID = node.getAttribute("cm-marker"), range;
		if (markerID) {
			var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
			if (found.length && (range = found[0].find(0)))
			{ addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }
			return
		}
		if (node.getAttribute("contenteditable") == "false") { return }
		var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);
		if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }

		if (isBlock) { close(); }
		for (var i = 0; i < node.childNodes.length; i++)
			{ walk(node.childNodes[i]); }

		if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }
		if (isBlock) { closing = true; }
		} else if (node.nodeType == 3) {
		addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "));
		}
	}
	for (;;) {
		walk(from);
		if (from == to) { break }
		from = from.nextSibling;
		extraLinebreak = false;
	}
	return text
	}

	function domToPos(cm, node, offset) {
	var lineNode;
	if (node == cm.display.lineDiv) {
		lineNode = cm.display.lineDiv.childNodes[offset];
		if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
		node = null; offset = 0;
	} else {
		for (lineNode = node;; lineNode = lineNode.parentNode) {
		if (!lineNode || lineNode == cm.display.lineDiv) { return null }
		if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
		}
	}
	for (var i = 0; i < cm.display.view.length; i++) {
		var lineView = cm.display.view[i];
		if (lineView.node == lineNode)
		{ return locateNodeInLineView(lineView, node, offset) }
	}
	}

	function locateNodeInLineView(lineView, node, offset) {
	var wrapper = lineView.text.firstChild, bad = false;
	if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
	if (node == wrapper) {
		bad = true;
		node = wrapper.childNodes[offset];
		offset = 0;
		if (!node) {
		var line = lineView.rest ? lst(lineView.rest) : lineView.line;
		return badPos(Pos(lineNo(line), line.text.length), bad)
		}
	}

	var textNode = node.nodeType == 3 ? node : null, topNode = node;
	if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
		textNode = node.firstChild;
		if (offset) { offset = textNode.nodeValue.length; }
	}
	while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }
	var measure = lineView.measure, maps = measure.maps;

	function find(textNode, topNode, offset) {
		for (var i = -1; i < (maps ? maps.length : 0); i++) {
		var map = i < 0 ? measure.map : maps[i];
		for (var j = 0; j < map.length; j += 3) {
			var curNode = map[j + 2];
			if (curNode == textNode || curNode == topNode) {
			var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
			var ch = map[j] + offset;
			if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }
			return Pos(line, ch)
			}
		}
		}
	}
	var found = find(textNode, topNode, offset);
	if (found) { return badPos(found, bad) }

	// FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
	for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
		found = find(after, after.firstChild, 0);
		if (found)
		{ return badPos(Pos(found.line, found.ch - dist), bad) }
		else
		{ dist += after.textContent.length; }
	}
	for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
		found = find(before, before.firstChild, -1);
		if (found)
		{ return badPos(Pos(found.line, found.ch + dist$1), bad) }
		else
		{ dist$1 += before.textContent.length; }
	}
	}

	// TEXTAREA INPUT STYLE

	var TextareaInput = function(cm) {
	this.cm = cm;
	// See input.poll and input.reset
	this.prevInput = "";

	// Flag that indicates whether we expect input to appear real soon
	// now (after some event like 'keypress' or 'input') and are
	// polling intensively.
	this.pollingFast = false;
	// Self-resetting timeout for the poller
	this.polling = new Delayed();
	// Used to work around IE issue with selection being forgotten when focus moves away from textarea
	this.hasSelection = false;
	this.composing = null;
	this.resetting = false;
	};

	TextareaInput.prototype.init = function (display) {
		var this$1 = this;

	var input = this, cm = this.cm;
	this.createField(display);
	var te = this.textarea;

	display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);

	// Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
	if (ios) { te.style.width = "0px"; }

	on(te, "input", function () {
		if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }
		input.poll();
	});

	on(te, "paste", function (e) {
		if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }

		cm.state.pasteIncoming = +new Date;
		input.fastPoll();
	});

	function prepareCopyCut(e) {
		if (signalDOMEvent(cm, e)) { return }
		if (cm.somethingSelected()) {
		setLastCopied({lineWise: false, text: cm.getSelections()});
		} else if (!cm.options.lineWiseCopyCut) {
		return
		} else {
		var ranges = copyableRanges(cm);
		setLastCopied({lineWise: true, text: ranges.text});
		if (e.type == "cut") {
			cm.setSelections(ranges.ranges, null, sel_dontScroll);
		} else {
			input.prevInput = "";
			te.value = ranges.text.join("\n");
			selectInput(te);
		}
		}
		if (e.type == "cut") { cm.state.cutIncoming = +new Date; }
	}
	on(te, "cut", prepareCopyCut);
	on(te, "copy", prepareCopyCut);

	on(display.scroller, "paste", function (e) {
		if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
		if (!te.dispatchEvent) {
		cm.state.pasteIncoming = +new Date;
		input.focus();
		return
		}

		// Pass the `paste` event to the textarea so it's handled by its event listener.
		var event = new Event("paste");
		event.clipboardData = e.clipboardData;
		te.dispatchEvent(event);
	});

	// Prevent normal selection in the editor (we handle our own)
	on(display.lineSpace, "selectstart", function (e) {
		if (!eventInWidget(display, e)) { e_preventDefault(e); }
	});

	on(te, "compositionstart", function () {
		var start = cm.getCursor("from");
		if (input.composing) { input.composing.range.clear(); }
		input.composing = {
		start: start,
		range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
		};
	});
	on(te, "compositionend", function () {
		if (input.composing) {
		input.poll();
		input.composing.range.clear();
		input.composing = null;
		}
	});
	};

	TextareaInput.prototype.createField = function (_display) {
	// Wraps and hides input textarea
	this.wrapper = hiddenTextarea();
	// The semihidden textarea that is focused when the editor is
	// focused, and receives input.
	this.textarea = this.wrapper.firstChild;
	};

	TextareaInput.prototype.screenReaderLabelChanged = function (label) {
	// Label for screenreaders, accessibility
	if(label) {
		this.textarea.setAttribute('aria-label', label);
	} else {
		this.textarea.removeAttribute('aria-label');
	}
	};

	TextareaInput.prototype.prepareSelection = function () {
	// Redraw the selection and/or cursor
	var cm = this.cm, display = cm.display, doc = cm.doc;
	var result = prepareSelection(cm);

	// Move the hidden textarea near the cursor to prevent scrolling artifacts
	if (cm.options.moveInputWithCursor) {
		var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
		var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
		result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
											headPos.top + lineOff.top - wrapOff.top));
		result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
											headPos.left + lineOff.left - wrapOff.left));
	}

	return result
	};

	TextareaInput.prototype.showSelection = function (drawn) {
	var cm = this.cm, display = cm.display;
	removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
	removeChildrenAndAdd(display.selectionDiv, drawn.selection);
	if (drawn.teTop != null) {
		this.wrapper.style.top = drawn.teTop + "px";
		this.wrapper.style.left = drawn.teLeft + "px";
	}
	};

	// Reset the input to correspond to the selection (or to be empty,
	// when not typing and nothing is selected)
	TextareaInput.prototype.reset = function (typing) {
	if (this.contextMenuPending || this.composing && typing) { return }
	var cm = this.cm;
	this.resetting = true;
	if (cm.somethingSelected()) {
		this.prevInput = "";
		var content = cm.getSelection();
		this.textarea.value = content;
		if (cm.state.focused) { selectInput(this.textarea); }
		if (ie && ie_version >= 9) { this.hasSelection = content; }
	} else if (!typing) {
		this.prevInput = this.textarea.value = "";
		if (ie && ie_version >= 9) { this.hasSelection = null; }
	}
	this.resetting = false;
	};

	TextareaInput.prototype.getField = function () { return this.textarea };

	TextareaInput.prototype.supportsTouch = function () { return false };

	TextareaInput.prototype.focus = function () {
	if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt(this.textarea.ownerDocument) != this.textarea)) {
		try { this.textarea.focus(); }
		catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
	}
	};

	TextareaInput.prototype.blur = function () { this.textarea.blur(); };

	TextareaInput.prototype.resetPosition = function () {
	this.wrapper.style.top = this.wrapper.style.left = 0;
	};

	TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };

	// Poll for input changes, using the normal rate of polling. This
	// runs as long as the editor is focused.
	TextareaInput.prototype.slowPoll = function () {
		var this$1 = this;

	if (this.pollingFast) { return }
	this.polling.set(this.cm.options.pollInterval, function () {
		this$1.poll();
		if (this$1.cm.state.focused) { this$1.slowPoll(); }
	});
	};

	// When an event has just come in that is likely to add or change
	// something in the input textarea, we poll faster, to ensure that
	// the change appears on the screen quickly.
	TextareaInput.prototype.fastPoll = function () {
	var missed = false, input = this;
	input.pollingFast = true;
	function p() {
		var changed = input.poll();
		if (!changed && !missed) {missed = true; input.polling.set(60, p);}
		else {input.pollingFast = false; input.slowPoll();}
	}
	input.polling.set(20, p);
	};

	// Read input from the textarea, and update the document to match.
	// When something is selected, it is present in the textarea, and
	// selected (unless it is huge, in which case a placeholder is
	// used). When nothing is selected, the cursor sits after previously
	// seen text (can be empty), which is stored in prevInput (we must
	// not reset the textarea when typing, because that breaks IME).
	TextareaInput.prototype.poll = function () {
		var this$1 = this;

	var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
	// Since this is called a *lot*, try to bail out as cheaply as
	// possible when it is clear that nothing happened. hasSelection
	// will be the case when there is a lot of text in the textarea,
	// in which case reading its value would be expensive.
	if (this.contextMenuPending || this.resetting || !cm.state.focused ||
		(hasSelection(input) && !prevInput && !this.composing) ||
		cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
		{ return false }

	var text = input.value;
	// If nothing changed, bail.
	if (text == prevInput && !cm.somethingSelected()) { return false }
	// Work around nonsensical selection resetting in IE9/10, and
	// inexplicable appearance of private area unicode characters on
	// some key combos in Mac (#2689).
	if (ie && ie_version >= 9 && this.hasSelection === text ||
		mac && /[\uf700-\uf7ff]/.test(text)) {
		cm.display.input.reset();
		return false
	}

	if (cm.doc.sel == cm.display.selForContextMenu) {
		var first = text.charCodeAt(0);
		if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
		if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
	}
	// Find the part of the input that is actually new
	var same = 0, l = Math.min(prevInput.length, text.length);
	while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }

	runInOp(cm, function () {
		applyTextInput(cm, text.slice(same), prevInput.length - same,
					null, this$1.composing ? "*compose" : null);

		// Don't leave long text in the textarea, since it makes further polling slow
		if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; }
		else { this$1.prevInput = text; }

		if (this$1.composing) {
		this$1.composing.range.clear();
		this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
											{className: "CodeMirror-composing"});
		}
	});
	return true
	};

	TextareaInput.prototype.ensurePolled = function () {
	if (this.pollingFast && this.poll()) { this.pollingFast = false; }
	};

	TextareaInput.prototype.onKeyPress = function () {
	if (ie && ie_version >= 9) { this.hasSelection = null; }
	this.fastPoll();
	};

	TextareaInput.prototype.onContextMenu = function (e) {
	var input = this, cm = input.cm, display = cm.display, te = input.textarea;
	if (input.contextMenuPending) { input.contextMenuPending(); }
	var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
	if (!pos || presto) { return } // Opera is difficult.

	// Reset the current text selection only if the click is done outside of the selection
	// and 'resetSelectionOnContextMenu' option is true.
	var reset = cm.options.resetSelectionOnContextMenu;
	if (reset && cm.doc.sel.contains(pos) == -1)
		{ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }

	var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
	var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();
	input.wrapper.style.cssText = "position: static";
	te.style.cssText = "position: absolute; width: 30px; height: 30px;\n      top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n      z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
	var oldScrollY;
	if (webkit) { oldScrollY = te.ownerDocument.defaultView.scrollY; } // Work around Chrome issue (#2712)
	display.input.focus();
	if (webkit) { te.ownerDocument.defaultView.scrollTo(null, oldScrollY); }
	display.input.reset();
	// Adds "Select all" to context menu in FF
	if (!cm.somethingSelected()) { te.value = input.prevInput = " "; }
	input.contextMenuPending = rehide;
	display.selForContextMenu = cm.doc.sel;
	clearTimeout(display.detectingSelectAll);

	// Select-all will be greyed out if there's nothing to select, so
	// this adds a zero-width space so that we can later check whether
	// it got selected.
	function prepareSelectAllHack() {
		if (te.selectionStart != null) {
		var selected = cm.somethingSelected();
		var extval = "\u200b" + (selected ? te.value : "");
		te.value = "\u21da"; // Used to catch context-menu undo
		te.value = extval;
		input.prevInput = selected ? "" : "\u200b";
		te.selectionStart = 1; te.selectionEnd = extval.length;
		// Re-set this, in case some other handler touched the
		// selection in the meantime.
		display.selForContextMenu = cm.doc.sel;
		}
	}
	function rehide() {
		if (input.contextMenuPending != rehide) { return }
		input.contextMenuPending = false;
		input.wrapper.style.cssText = oldWrapperCSS;
		te.style.cssText = oldCSS;
		if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }

		// Try to detect the user choosing select-all
		if (te.selectionStart != null) {
		if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
		var i = 0, poll = function () {
			if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
				te.selectionEnd > 0 && input.prevInput == "\u200b") {
			operation(cm, selectAll)(cm);
			} else if (i++ < 10) {
			display.detectingSelectAll = setTimeout(poll, 500);
			} else {
			display.selForContextMenu = null;
			display.input.reset();
			}
		};
		display.detectingSelectAll = setTimeout(poll, 200);
		}
	}

	if (ie && ie_version >= 9) { prepareSelectAllHack(); }
	if (captureRightClick) {
		e_stop(e);
		var mouseup = function () {
		off(window, "mouseup", mouseup);
		setTimeout(rehide, 20);
		};
		on(window, "mouseup", mouseup);
	} else {
		setTimeout(rehide, 50);
	}
	};

	TextareaInput.prototype.readOnlyChanged = function (val) {
	if (!val) { this.reset(); }
	this.textarea.disabled = val == "nocursor";
	this.textarea.readOnly = !!val;
	};

	TextareaInput.prototype.setUneditable = function () {};

	TextareaInput.prototype.needsContentAttribute = false;

	function fromTextArea(textarea, options) {
	options = options ? copyObj(options) : {};
	options.value = textarea.value;
	if (!options.tabindex && textarea.tabIndex)
		{ options.tabindex = textarea.tabIndex; }
	if (!options.placeholder && textarea.placeholder)
		{ options.placeholder = textarea.placeholder; }
	// Set autofocus to true if this textarea is focused, or if it has
	// autofocus and no other element is focused.
	if (options.autofocus == null) {
		var hasFocus = activeElt(textarea.ownerDocument);
		options.autofocus = hasFocus == textarea ||
		textarea.getAttribute("autofocus") != null && hasFocus == document.body;
	}

	function save() {textarea.value = cm.getValue();}

	var realSubmit;
	if (textarea.form) {
		on(textarea.form, "submit", save);
		// Deplorable hack to make the submit method do the right thing.
		if (!options.leaveSubmitMethodAlone) {
		var form = textarea.form;
		realSubmit = form.submit;
		try {
			var wrappedSubmit = form.submit = function () {
			save();
			form.submit = realSubmit;
			form.submit();
			form.submit = wrappedSubmit;
			};
		} catch(e) {}
		}
	}

	options.finishInit = function (cm) {
		cm.save = save;
		cm.getTextArea = function () { return textarea; };
		cm.toTextArea = function () {
		cm.toTextArea = isNaN; // Prevent this from being ran twice
		save();
		textarea.parentNode.removeChild(cm.getWrapperElement());
		textarea.style.display = "";
		if (textarea.form) {
			off(textarea.form, "submit", save);
			if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
			{ textarea.form.submit = realSubmit; }
		}
		};
	};

	textarea.style.display = "none";
	var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
		options);
	return cm
	}

	function addLegacyProps(CodeMirror) {
	CodeMirror.off = off;
	CodeMirror.on = on;
	CodeMirror.wheelEventPixels = wheelEventPixels;
	CodeMirror.Doc = Doc;
	CodeMirror.splitLines = splitLinesAuto;
	CodeMirror.countColumn = countColumn;
	CodeMirror.findColumn = findColumn;
	CodeMirror.isWordChar = isWordCharBasic;
	CodeMirror.Pass = Pass;
	CodeMirror.signal = signal;
	CodeMirror.Line = Line;
	CodeMirror.changeEnd = changeEnd;
	CodeMirror.scrollbarModel = scrollbarModel;
	CodeMirror.Pos = Pos;
	CodeMirror.cmpPos = cmp;
	CodeMirror.modes = modes;
	CodeMirror.mimeModes = mimeModes;
	CodeMirror.resolveMode = resolveMode;
	CodeMirror.getMode = getMode;
	CodeMirror.modeExtensions = modeExtensions;
	CodeMirror.extendMode = extendMode;
	CodeMirror.copyState = copyState;
	CodeMirror.startState = startState;
	CodeMirror.innerMode = innerMode;
	CodeMirror.commands = commands;
	CodeMirror.keyMap = keyMap;
	CodeMirror.keyName = keyName;
	CodeMirror.isModifierKey = isModifierKey;
	CodeMirror.lookupKey = lookupKey;
	CodeMirror.normalizeKeyMap = normalizeKeyMap;
	CodeMirror.StringStream = StringStream;
	CodeMirror.SharedTextMarker = SharedTextMarker;
	CodeMirror.TextMarker = TextMarker;
	CodeMirror.LineWidget = LineWidget;
	CodeMirror.e_preventDefault = e_preventDefault;
	CodeMirror.e_stopPropagation = e_stopPropagation;
	CodeMirror.e_stop = e_stop;
	CodeMirror.addClass = addClass;
	CodeMirror.contains = contains;
	CodeMirror.rmClass = rmClass;
	CodeMirror.keyNames = keyNames;
	}

	// EDITOR CONSTRUCTOR

	defineOptions(CodeMirror);

	addEditorMethods(CodeMirror);

	// Set up methods on CodeMirror's prototype to redirect to the editor's document.
	var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
	for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
	{ CodeMirror.prototype[prop] = (function(method) {
		return function() {return method.apply(this.doc, arguments)}
	})(Doc.prototype[prop]); } }

	eventMixin(Doc);
	CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};

	// Extra arguments are stored as the mode's dependencies, which is
	// used by (legacy) mechanisms like loadmode.js to automatically
	// load a mode. (Preferred mechanism is the require/define calls.)
	CodeMirror.defineMode = function(name/*, mode, …*/) {
	if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; }
	defineMode.apply(this, arguments);
	};

	CodeMirror.defineMIME = defineMIME;

	// Minimal default mode.
	CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
	CodeMirror.defineMIME("text/plain", "null");

	// EXTENSIONS

	CodeMirror.defineExtension = function (name, func) {
	CodeMirror.prototype[name] = func;
	};
	CodeMirror.defineDocExtension = function (name, func) {
	Doc.prototype[name] = func;
	};

	CodeMirror.fromTextArea = fromTextArea;

	addLegacyProps(CodeMirror);

	CodeMirror.version = "5.65.9";

	return CodeMirror;
});
				var loadJs = eval(function loadJs() {
	CodeMirror.defineMode("javascript", function(config, parserConfig) {
	var indentUnit = config.indentUnit;
	var statementIndent = parserConfig.statementIndent;
	var jsonldMode = parserConfig.jsonld;
	var jsonMode = parserConfig.json || jsonldMode;
	var trackScope = parserConfig.trackScope !== false
	var isTS = parserConfig.typescript;
	var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
	
	// Tokenizer
	
	var keywords = function(){
		function kw(type) {return {type: type, style: "keyword"};}
		var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"), D = kw("keyword d");
		var operator = kw("operator"), atom = {type: "atom", style: "atom"};
	
		return {
		"if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
		"return": D, "break": D, "continue": D, "new": kw("new"), "delete": C, "void": C, "throw": C,
		"debugger": kw("debugger"), "var": kw("var"), "const": kw("var"), "let": kw("var"),
		"function": kw("function"), "catch": kw("catch"),
		"for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
		"in": operator, "typeof": operator, "instanceof": operator,
		"true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
		"this": kw("this"), "class": kw("class"), "super": kw("atom"),
		"yield": C, "export": kw("export"), "import": kw("import"), "extends": C,
		"await": C
		};
	}();
	
	var isOperatorChar = /[+\-*&%=<>!?|~^@]/;
	var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
	
	function readRegexp(stream) {
		var escaped = false, next, inSet = false;
		while ((next = stream.next()) != null) {
		if (!escaped) {
			if (next == "/" && !inSet) return;
			if (next == "[") inSet = true;
			else if (inSet && next == "]") inSet = false;
		}
		escaped = !escaped && next == "\\";
		}
	}
	
	// Used as scratch variables to communicate multiple values without
	// consing up tons of objects.
	var type, content;
	function ret(tp, style, cont) {
		type = tp; content = cont;
		return style;
	}
	function tokenBase(stream, state) {
		var ch = stream.next();
		if (ch == '"' || ch == "'") {
		state.tokenize = tokenString(ch);
		return state.tokenize(stream, state);
		} else if (ch == "." && stream.match(/^\d[\d_]*(?:[eE][+\-]?[\d_]+)?/)) {
		return ret("number", "number");
		} else if (ch == "." && stream.match("..")) {
		return ret("spread", "meta");
		} else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
		return ret(ch);
		} else if (ch == "=" && stream.eat(">")) {
		return ret("=>", "operator");
		} else if (ch == "0" && stream.match(/^(?:x[\dA-Fa-f_]+|o[0-7_]+|b[01_]+)n?/)) {
		return ret("number", "number");
		} else if (/\d/.test(ch)) {
		stream.match(/^[\d_]*(?:n|(?:\.[\d_]*)?(?:[eE][+\-]?[\d_]+)?)?/);
		return ret("number", "number");
		} else if (ch == "/") {
		if (stream.eat("*")) {
			state.tokenize = tokenComment;
			return tokenComment(stream, state);
		} else if (stream.eat("/")) {
			stream.skipToEnd();
			return ret("comment", "comment");
		} else if (expressionAllowed(stream, state, 1)) {
			readRegexp(stream);
			stream.match(/^\b(([gimyus])(?![gimyus]*\2))+\b/);
			return ret("regexp", "string-2");
		} else {
			stream.eat("=");
			return ret("operator", "operator", stream.current());
		}
		} else if (ch == "`") {
		state.tokenize = tokenQuasi;
		return tokenQuasi(stream, state);
		} else if (ch == "#" && stream.peek() == "!") {
		stream.skipToEnd();
		return ret("meta", "meta");
		} else if (ch == "#" && stream.eatWhile(wordRE)) {
		return ret("variable", "property")
		} else if (ch == "<" && stream.match("!--") ||
				(ch == "-" && stream.match("->") && !/\S/.test(stream.string.slice(0, stream.start)))) {
		stream.skipToEnd()
		return ret("comment", "comment")
		} else if (isOperatorChar.test(ch)) {
		if (ch != ">" || !state.lexical || state.lexical.type != ">") {
			if (stream.eat("=")) {
			if (ch == "!" || ch == "=") stream.eat("=")
			} else if (/[<>*+\-|&?]/.test(ch)) {
			stream.eat(ch)
			if (ch == ">") stream.eat(ch)
			}
		}
		if (ch == "?" && stream.eat(".")) return ret(".")
		return ret("operator", "operator", stream.current());
		} else if (wordRE.test(ch)) {
		stream.eatWhile(wordRE);
		var word = stream.current()
		if (state.lastType != ".") {
			if (keywords.propertyIsEnumerable(word)) {
			var kw = keywords[word]
			return ret(kw.type, kw.style, word)
			}
			if (word == "async" && stream.match(/^(\s|\/\*([^*]|\*(?!\/))*?\*\/)*[\[\(\w]/, false))
			return ret("async", "keyword", word)
		}
		return ret("variable", "variable", word)
		}
	}
	
	function tokenString(quote) {
		return function(stream, state) {
		var escaped = false, next;
		if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
			state.tokenize = tokenBase;
			return ret("jsonld-keyword", "meta");
		}
		while ((next = stream.next()) != null) {
			if (next == quote && !escaped) break;
			escaped = !escaped && next == "\\";
		}
		if (!escaped) state.tokenize = tokenBase;
		return ret("string", "string");
		};
	}
	
	function tokenComment(stream, state) {
		var maybeEnd = false, ch;
		while (ch = stream.next()) {
		if (ch == "/" && maybeEnd) {
			state.tokenize = tokenBase;
			break;
		}
		maybeEnd = (ch == "*");
		}
		return ret("comment", "comment");
	}
	
	function tokenQuasi(stream, state) {
		var escaped = false, next;
		while ((next = stream.next()) != null) {
		if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
			state.tokenize = tokenBase;
			break;
		}
		escaped = !escaped && next == "\\";
		}
		return ret("quasi", "string-2", stream.current());
	}
	
	var brackets = "([{}])";
	// This is a crude lookahead trick to try and notice that we're
	// parsing the argument patterns for a fat-arrow function before we
	// actually hit the arrow token. It only works if the arrow is on
	// the same line as the arguments and there's no strange noise
	// (comments) in between. Fallback is to only notice when we hit the
	// arrow, and not declare the arguments as locals for the arrow
	// body.
	function findFatArrow(stream, state) {
		if (state.fatArrowAt) state.fatArrowAt = null;
		var arrow = stream.string.indexOf("=>", stream.start);
		if (arrow < 0) return;
	
		if (isTS) { // Try to skip TypeScript return type declarations after the arguments
		var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow))
		if (m) arrow = m.index
		}
	
		var depth = 0, sawSomething = false;
		for (var pos = arrow - 1; pos >= 0; --pos) {
		var ch = stream.string.charAt(pos);
		var bracket = brackets.indexOf(ch);
		if (bracket >= 0 && bracket < 3) {
			if (!depth) { ++pos; break; }
			if (--depth == 0) { if (ch == "(") sawSomething = true; break; }
		} else if (bracket >= 3 && bracket < 6) {
			++depth;
		} else if (wordRE.test(ch)) {
			sawSomething = true;
		} else if (/["'\/`]/.test(ch)) {
			for (;; --pos) {
			if (pos == 0) return
			var next = stream.string.charAt(pos - 1)
			if (next == ch && stream.string.charAt(pos - 2) != "\\") { pos--; break }
			}
		} else if (sawSomething && !depth) {
			++pos;
			break;
		}
		}
		if (sawSomething && !depth) state.fatArrowAt = pos;
	}
	
	// Parser
	
	var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true,
						"regexp": true, "this": true, "import": true, "jsonld-keyword": true};
	
	function JSLexical(indented, column, type, align, prev, info) {
		this.indented = indented;
		this.column = column;
		this.type = type;
		this.prev = prev;
		this.info = info;
		if (align != null) this.align = align;
	}
	
	function inScope(state, varname) {
		if (!trackScope) return false
		for (var v = state.localVars; v; v = v.next)
		if (v.name == varname) return true;
		for (var cx = state.context; cx; cx = cx.prev) {
		for (var v = cx.vars; v; v = v.next)
			if (v.name == varname) return true;
		}
	}
	
	function parseJS(state, style, type, content, stream) {
		var cc = state.cc;
		// Communicate our context to the combinators.
		// (Less wasteful than consing up a hundred closures on every call.)
		cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
	
		if (!state.lexical.hasOwnProperty("align"))
		state.lexical.align = true;
	
		while(true) {
		var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
		if (combinator(type, content)) {
			while(cc.length && cc[cc.length - 1].lex)
			cc.pop()();
			if (cx.marked) return cx.marked;
			if (type == "variable" && inScope(state, content)) return "variable-2";
			return style;
		}
		}
	}
	
	// Combinator utils
	
	var cx = {state: null, column: null, marked: null, cc: null};
	function pass() {
		for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
	}
	function cont() {
		pass.apply(null, arguments);
		return true;
	}
	function inList(name, list) {
		for (var v = list; v; v = v.next) if (v.name == name) return true
		return false;
	}
	function register(varname) {
		var state = cx.state;
		cx.marked = "def";
		if (!trackScope) return
		if (state.context) {
		if (state.lexical.info == "var" && state.context && state.context.block) {
			// FIXME function decls are also not block scoped
			var newContext = registerVarScoped(varname, state.context)
			if (newContext != null) {
			state.context = newContext
			return
			}
		} else if (!inList(varname, state.localVars)) {
			state.localVars = new Var(varname, state.localVars)
			return
		}
		}
		// Fall through means this is global
		if (parserConfig.globalVars && !inList(varname, state.globalVars))
		state.globalVars = new Var(varname, state.globalVars)
	}
	function registerVarScoped(varname, context) {
		if (!context) {
		return null
		} else if (context.block) {
		var inner = registerVarScoped(varname, context.prev)
		if (!inner) return null
		if (inner == context.prev) return context
		return new Context(inner, context.vars, true)
		} else if (inList(varname, context.vars)) {
		return context
		} else {
		return new Context(context.prev, new Var(varname, context.vars), false)
		}
	}
	
	function isModifier(name) {
		return name == "public" || name == "private" || name == "protected" || name == "abstract" || name == "readonly"
	}
	
	// Combinators
	
	function Context(prev, vars, block) { this.prev = prev; this.vars = vars; this.block = block }
	function Var(name, next) { this.name = name; this.next = next }
	
	var defaultVars = new Var("this", new Var("arguments", null))
	function pushcontext() {
		cx.state.context = new Context(cx.state.context, cx.state.localVars, false)
		cx.state.localVars = defaultVars
	}
	function pushblockcontext() {
		cx.state.context = new Context(cx.state.context, cx.state.localVars, true)
		cx.state.localVars = null
	}
	pushcontext.lex = pushblockcontext.lex = true
	function popcontext() {
		cx.state.localVars = cx.state.context.vars
		cx.state.context = cx.state.context.prev
	}
	popcontext.lex = true
	function pushlex(type, info) {
		var result = function() {
		var state = cx.state, indent = state.indented;
		if (state.lexical.type == "stat") indent = state.lexical.indented;
		else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
			indent = outer.indented;
		state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
		};
		result.lex = true;
		return result;
	}
	function poplex() {
		var state = cx.state;
		if (state.lexical.prev) {
		if (state.lexical.type == ")")
			state.indented = state.lexical.indented;
		state.lexical = state.lexical.prev;
		}
	}
	poplex.lex = true;
	
	function expect(wanted) {
		function exp(type) {
		if (type == wanted) return cont();
		else if (wanted == ";" || type == "}" || type == ")" || type == "]") return pass();
		else return cont(exp);
		};
		return exp;
	}
	
	function statement(type, value) {
		if (type == "var") return cont(pushlex("vardef", value), vardef, expect(";"), poplex);
		if (type == "keyword a") return cont(pushlex("form"), parenExpr, statement, poplex);
		if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
		if (type == "keyword d") return cx.stream.match(/^\s*$/, false) ? cont() : cont(pushlex("stat"), maybeexpression, expect(";"), poplex);
		if (type == "debugger") return cont(expect(";"));
		if (type == "{") return cont(pushlex("}"), pushblockcontext, block, poplex, popcontext);
		if (type == ";") return cont();
		if (type == "if") {
		if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
			cx.state.cc.pop()();
		return cont(pushlex("form"), parenExpr, statement, poplex, maybeelse);
		}
		if (type == "function") return cont(functiondef);
		if (type == "for") return cont(pushlex("form"), pushblockcontext, forspec, statement, popcontext, poplex);
		if (type == "class" || (isTS && value == "interface")) {
		cx.marked = "keyword"
		return cont(pushlex("form", type == "class" ? type : value), className, poplex)
		}
		if (type == "variable") {
		if (isTS && value == "declare") {
			cx.marked = "keyword"
			return cont(statement)
		} else if (isTS && (value == "module" || value == "enum" || value == "type") && cx.stream.match(/^\s*\w/, false)) {
			cx.marked = "keyword"
			if (value == "enum") return cont(enumdef);
			else if (value == "type") return cont(typename, expect("operator"), typeexpr, expect(";"));
			else return cont(pushlex("form"), pattern, expect("{"), pushlex("}"), block, poplex, poplex)
		} else if (isTS && value == "namespace") {
			cx.marked = "keyword"
			return cont(pushlex("form"), expression, statement, poplex)
		} else if (isTS && value == "abstract") {
			cx.marked = "keyword"
			return cont(statement)
		} else {
			return cont(pushlex("stat"), maybelabel);
		}
		}
		if (type == "switch") return cont(pushlex("form"), parenExpr, expect("{"), pushlex("}", "switch"), pushblockcontext,
										block, poplex, poplex, popcontext);
		if (type == "case") return cont(expression, expect(":"));
		if (type == "default") return cont(expect(":"));
		if (type == "catch") return cont(pushlex("form"), pushcontext, maybeCatchBinding, statement, poplex, popcontext);
		if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
		if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
		if (type == "async") return cont(statement)
		if (value == "@") return cont(expression, statement)
		return pass(pushlex("stat"), expression, expect(";"), poplex);
	}
	function maybeCatchBinding(type) {
		if (type == "(") return cont(funarg, expect(")"))
	}
	function expression(type, value) {
		return expressionInner(type, value, false);
	}
	function expressionNoComma(type, value) {
		return expressionInner(type, value, true);
	}
	function parenExpr(type) {
		if (type != "(") return pass()
		return cont(pushlex(")"), maybeexpression, expect(")"), poplex)
	}
	function expressionInner(type, value, noComma) {
		if (cx.state.fatArrowAt == cx.stream.start) {
		var body = noComma ? arrowBodyNoComma : arrowBody;
		if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, expect("=>"), body, popcontext);
		else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
		}
	
		var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
		if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
		if (type == "function") return cont(functiondef, maybeop);
		if (type == "class" || (isTS && value == "interface")) { cx.marked = "keyword"; return cont(pushlex("form"), classExpression, poplex); }
		if (type == "keyword c" || type == "async") return cont(noComma ? expressionNoComma : expression);
		if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
		if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
		if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
		if (type == "{") return contCommasep(objprop, "}", null, maybeop);
		if (type == "quasi") return pass(quasi, maybeop);
		if (type == "new") return cont(maybeTarget(noComma));
		return cont();
	}
	function maybeexpression(type) {
		if (type.match(/[;\}\)\],]/)) return pass();
		return pass(expression);
	}
	
	function maybeoperatorComma(type, value) {
		if (type == ",") return cont(maybeexpression);
		return maybeoperatorNoComma(type, value, false);
	}
	function maybeoperatorNoComma(type, value, noComma) {
		var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
		var expr = noComma == false ? expression : expressionNoComma;
		if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
		if (type == "operator") {
		if (/\+\+|--/.test(value) || isTS && value == "!") return cont(me);
		if (isTS && value == "<" && cx.stream.match(/^([^<>]|<[^<>]*>)*>\s*\(/, false))
			return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, me);
		if (value == "?") return cont(expression, expect(":"), expr);
		return cont(expr);
		}
		if (type == "quasi") { return pass(quasi, me); }
		if (type == ";") return;
		if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
		if (type == ".") return cont(property, me);
		if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
		if (isTS && value == "as") { cx.marked = "keyword"; return cont(typeexpr, me) }
		if (type == "regexp") {
		cx.state.lastType = cx.marked = "operator"
		cx.stream.backUp(cx.stream.pos - cx.stream.start - 1)
		return cont(expr)
		}
	}
	function quasi(type, value) {
		if (type != "quasi") return pass();
		if (value.slice(value.length - 2) != "${") return cont(quasi);
		return cont(maybeexpression, continueQuasi);
	}
	function continueQuasi(type) {
		if (type == "}") {
		cx.marked = "string-2";
		cx.state.tokenize = tokenQuasi;
		return cont(quasi);
		}
	}
	function arrowBody(type) {
		findFatArrow(cx.stream, cx.state);
		return pass(type == "{" ? statement : expression);
	}
	function arrowBodyNoComma(type) {
		findFatArrow(cx.stream, cx.state);
		return pass(type == "{" ? statement : expressionNoComma);
	}
	function maybeTarget(noComma) {
		return function(type) {
		if (type == ".") return cont(noComma ? targetNoComma : target);
		else if (type == "variable" && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma)
		else return pass(noComma ? expressionNoComma : expression);
		};
	}
	function target(_, value) {
		if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); }
	}
	function targetNoComma(_, value) {
		if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); }
	}
	function maybelabel(type) {
		if (type == ":") return cont(poplex, statement);
		return pass(maybeoperatorComma, expect(";"), poplex);
	}
	function property(type) {
		if (type == "variable") {cx.marked = "property"; return cont();}
	}
	function objprop(type, value) {
		if (type == "async") {
		cx.marked = "property";
		return cont(objprop);
		} else if (type == "variable" || cx.style == "keyword") {
		cx.marked = "property";
		if (value == "get" || value == "set") return cont(getterSetter);
		var m // Work around fat-arrow-detection complication for detecting typescript typed arrow params
		if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\s*:\s*/, false)))
			cx.state.fatArrowAt = cx.stream.pos + m[0].length
		return cont(afterprop);
		} else if (type == "number" || type == "string") {
		cx.marked = jsonldMode ? "property" : (cx.style + " property");
		return cont(afterprop);
		} else if (type == "jsonld-keyword") {
		return cont(afterprop);
		} else if (isTS && isModifier(value)) {
		cx.marked = "keyword"
		return cont(objprop)
		} else if (type == "[") {
		return cont(expression, maybetype, expect("]"), afterprop);
		} else if (type == "spread") {
		return cont(expressionNoComma, afterprop);
		} else if (value == "*") {
		cx.marked = "keyword";
		return cont(objprop);
		} else if (type == ":") {
		return pass(afterprop)
		}
	}
	function getterSetter(type) {
		if (type != "variable") return pass(afterprop);
		cx.marked = "property";
		return cont(functiondef);
	}
	function afterprop(type) {
		if (type == ":") return cont(expressionNoComma);
		if (type == "(") return pass(functiondef);
	}
	function commasep(what, end, sep) {
		function proceed(type, value) {
		if (sep ? sep.indexOf(type) > -1 : type == ",") {
			var lex = cx.state.lexical;
			if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
			return cont(function(type, value) {
			if (type == end || value == end) return pass()
			return pass(what)
			}, proceed);
		}
		if (type == end || value == end) return cont();
		if (sep && sep.indexOf(";") > -1) return pass(what)
		return cont(expect(end));
		}
		return function(type, value) {
		if (type == end || value == end) return cont();
		return pass(what, proceed);
		};
	}
	function contCommasep(what, end, info) {
		for (var i = 3; i < arguments.length; i++)
		cx.cc.push(arguments[i]);
		return cont(pushlex(end, info), commasep(what, end), poplex);
	}
	function block(type) {
		if (type == "}") return cont();
		return pass(statement, block);
	}
	function maybetype(type, value) {
		if (isTS) {
		if (type == ":") return cont(typeexpr);
		if (value == "?") return cont(maybetype);
		}
	}
	function maybetypeOrIn(type, value) {
		if (isTS && (type == ":" || value == "in")) return cont(typeexpr)
	}
	function mayberettype(type) {
		if (isTS && type == ":") {
		if (cx.stream.match(/^\s*\w+\s+is\b/, false)) return cont(expression, isKW, typeexpr)
		else return cont(typeexpr)
		}
	}
	function isKW(_, value) {
		if (value == "is") {
		cx.marked = "keyword"
		return cont()
		}
	}
	function typeexpr(type, value) {
		if (value == "keyof" || value == "typeof" || value == "infer" || value == "readonly") {
		cx.marked = "keyword"
		return cont(value == "typeof" ? expressionNoComma : typeexpr)
		}
		if (type == "variable" || value == "void") {
		cx.marked = "type"
		return cont(afterType)
		}
		if (value == "|" || value == "&") return cont(typeexpr)
		if (type == "string" || type == "number" || type == "atom") return cont(afterType);
		if (type == "[") return cont(pushlex("]"), commasep(typeexpr, "]", ","), poplex, afterType)
		if (type == "{") return cont(pushlex("}"), typeprops, poplex, afterType)
		if (type == "(") return cont(commasep(typearg, ")"), maybeReturnType, afterType)
		if (type == "<") return cont(commasep(typeexpr, ">"), typeexpr)
		if (type == "quasi") { return pass(quasiType, afterType); }
	}
	function maybeReturnType(type) {
		if (type == "=>") return cont(typeexpr)
	}
	function typeprops(type) {
		if (type.match(/[\}\)\]]/)) return cont()
		if (type == "," || type == ";") return cont(typeprops)
		return pass(typeprop, typeprops)
	}
	function typeprop(type, value) {
		if (type == "variable" || cx.style == "keyword") {
		cx.marked = "property"
		return cont(typeprop)
		} else if (value == "?" || type == "number" || type == "string") {
		return cont(typeprop)
		} else if (type == ":") {
		return cont(typeexpr)
		} else if (type == "[") {
		return cont(expect("variable"), maybetypeOrIn, expect("]"), typeprop)
		} else if (type == "(") {
		return pass(functiondecl, typeprop)
		} else if (!type.match(/[;\}\)\],]/)) {
		return cont()
		}
	}
	function quasiType(type, value) {
		if (type != "quasi") return pass();
		if (value.slice(value.length - 2) != "${") return cont(quasiType);
		return cont(typeexpr, continueQuasiType);
	}
	function continueQuasiType(type) {
		if (type == "}") {
		cx.marked = "string-2";
		cx.state.tokenize = tokenQuasi;
		return cont(quasiType);
		}
	}
	function typearg(type, value) {
		if (type == "variable" && cx.stream.match(/^\s*[?:]/, false) || value == "?") return cont(typearg)
		if (type == ":") return cont(typeexpr)
		if (type == "spread") return cont(typearg)
		return pass(typeexpr)
	}
	function afterType(type, value) {
		if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
		if (value == "|" || type == "." || value == "&") return cont(typeexpr)
		if (type == "[") return cont(typeexpr, expect("]"), afterType)
		if (value == "extends" || value == "implements") { cx.marked = "keyword"; return cont(typeexpr) }
		if (value == "?") return cont(typeexpr, expect(":"), typeexpr)
	}
	function maybeTypeArgs(_, value) {
		if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
	}
	function typeparam() {
		return pass(typeexpr, maybeTypeDefault)
	}
	function maybeTypeDefault(_, value) {
		if (value == "=") return cont(typeexpr)
	}
	function vardef(_, value) {
		if (value == "enum") {cx.marked = "keyword"; return cont(enumdef)}
		return pass(pattern, maybetype, maybeAssign, vardefCont);
	}
	function pattern(type, value) {
		if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(pattern) }
		if (type == "variable") { register(value); return cont(); }
		if (type == "spread") return cont(pattern);
		if (type == "[") return contCommasep(eltpattern, "]");
		if (type == "{") return contCommasep(proppattern, "}");
	}
	function proppattern(type, value) {
		if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
		register(value);
		return cont(maybeAssign);
		}
		if (type == "variable") cx.marked = "property";
		if (type == "spread") return cont(pattern);
		if (type == "}") return pass();
		if (type == "[") return cont(expression, expect(']'), expect(':'), proppattern);
		return cont(expect(":"), pattern, maybeAssign);
	}
	function eltpattern() {
		return pass(pattern, maybeAssign)
	}
	function maybeAssign(_type, value) {
		if (value == "=") return cont(expressionNoComma);
	}
	function vardefCont(type) {
		if (type == ",") return cont(vardef);
	}
	function maybeelse(type, value) {
		if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
	}
	function forspec(type, value) {
		if (value == "await") return cont(forspec);
		if (type == "(") return cont(pushlex(")"), forspec1, poplex);
	}
	function forspec1(type) {
		if (type == "var") return cont(vardef, forspec2);
		if (type == "variable") return cont(forspec2);
		return pass(forspec2)
	}
	function forspec2(type, value) {
		if (type == ")") return cont()
		if (type == ";") return cont(forspec2)
		if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression, forspec2) }
		return pass(expression, forspec2)
	}
	function functiondef(type, value) {
		if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
		if (type == "variable") {register(value); return cont(functiondef);}
		if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, statement, popcontext);
		if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondef)
	}
	function functiondecl(type, value) {
		if (value == "*") {cx.marked = "keyword"; return cont(functiondecl);}
		if (type == "variable") {register(value); return cont(functiondecl);}
		if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, popcontext);
		if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondecl)
	}
	function typename(type, value) {
		if (type == "keyword" || type == "variable") {
		cx.marked = "type"
		return cont(typename)
		} else if (value == "<") {
		return cont(pushlex(">"), commasep(typeparam, ">"), poplex)
		}
	}
	function funarg(type, value) {
		if (value == "@") cont(expression, funarg)
		if (type == "spread") return cont(funarg);
		if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(funarg); }
		if (isTS && type == "this") return cont(maybetype, maybeAssign)
		return pass(pattern, maybetype, maybeAssign);
	}
	function classExpression(type, value) {
		// Class expressions may have an optional name.
		if (type == "variable") return className(type, value);
		return classNameAfter(type, value);
	}
	function className(type, value) {
		if (type == "variable") {register(value); return cont(classNameAfter);}
	}
	function classNameAfter(type, value) {
		if (value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, classNameAfter)
		if (value == "extends" || value == "implements" || (isTS && type == ",")) {
		if (value == "implements") cx.marked = "keyword";
		return cont(isTS ? typeexpr : expression, classNameAfter);
		}
		if (type == "{") return cont(pushlex("}"), classBody, poplex);
	}
	function classBody(type, value) {
		if (type == "async" ||
			(type == "variable" &&
			(value == "static" || value == "get" || value == "set" || (isTS && isModifier(value))) &&
			cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false))) {
		cx.marked = "keyword";
		return cont(classBody);
		}
		if (type == "variable" || cx.style == "keyword") {
		cx.marked = "property";
		return cont(classfield, classBody);
		}
		if (type == "number" || type == "string") return cont(classfield, classBody);
		if (type == "[")
		return cont(expression, maybetype, expect("]"), classfield, classBody)
		if (value == "*") {
		cx.marked = "keyword";
		return cont(classBody);
		}
		if (isTS && type == "(") return pass(functiondecl, classBody)
		if (type == ";" || type == ",") return cont(classBody);
		if (type == "}") return cont();
		if (value == "@") return cont(expression, classBody)
	}
	function classfield(type, value) {
		if (value == "!") return cont(classfield)
		if (value == "?") return cont(classfield)
		if (type == ":") return cont(typeexpr, maybeAssign)
		if (value == "=") return cont(expressionNoComma)
		var context = cx.state.lexical.prev, isInterface = context && context.info == "interface"
		return pass(isInterface ? functiondecl : functiondef)
	}
	function afterExport(type, value) {
		if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
		if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
		if (type == "{") return cont(commasep(exportField, "}"), maybeFrom, expect(";"));
		return pass(statement);
	}
	function exportField(type, value) {
		if (value == "as") { cx.marked = "keyword"; return cont(expect("variable")); }
		if (type == "variable") return pass(expressionNoComma, exportField);
	}
	function afterImport(type) {
		if (type == "string") return cont();
		if (type == "(") return pass(expression);
		if (type == ".") return pass(maybeoperatorComma);
		return pass(importSpec, maybeMoreImports, maybeFrom);
	}
	function importSpec(type, value) {
		if (type == "{") return contCommasep(importSpec, "}");
		if (type == "variable") register(value);
		if (value == "*") cx.marked = "keyword";
		return cont(maybeAs);
	}
	function maybeMoreImports(type) {
		if (type == ",") return cont(importSpec, maybeMoreImports)
	}
	function maybeAs(_type, value) {
		if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
	}
	function maybeFrom(_type, value) {
		if (value == "from") { cx.marked = "keyword"; return cont(expression); }
	}
	function arrayLiteral(type) {
		if (type == "]") return cont();
		return pass(commasep(expressionNoComma, "]"));
	}
	function enumdef() {
		return pass(pushlex("form"), pattern, expect("{"), pushlex("}"), commasep(enummember, "}"), poplex, poplex)
	}
	function enummember() {
		return pass(pattern, maybeAssign);
	}
	
	function isContinuedStatement(state, textAfter) {
		return state.lastType == "operator" || state.lastType == "," ||
		isOperatorChar.test(textAfter.charAt(0)) ||
		/[,.]/.test(textAfter.charAt(0));
	}
	
	function expressionAllowed(stream, state, backUp) {
		return state.tokenize == tokenBase &&
		/^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
		(state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
	}
	
	// Interface
	
	return {
		startState: function(basecolumn) {
		var state = {
			tokenize: tokenBase,
			lastType: "sof",
			cc: [],
			lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
			localVars: parserConfig.localVars,
			context: parserConfig.localVars && new Context(null, null, false),
			indented: basecolumn || 0
		};
		if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
			state.globalVars = parserConfig.globalVars;
		return state;
		},
	
		token: function(stream, state) {
		if (stream.sol()) {
			if (!state.lexical.hasOwnProperty("align"))
			state.lexical.align = false;
			state.indented = stream.indentation();
			findFatArrow(stream, state);
		}
		if (state.tokenize != tokenComment && stream.eatSpace()) return null;
		var style = state.tokenize(stream, state);
		if (type == "comment") return style;
		state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
		return parseJS(state, style, type, content, stream);
		},
	
		indent: function(state, textAfter) {
		if (state.tokenize == tokenComment || state.tokenize == tokenQuasi) return CodeMirror.Pass;
		if (state.tokenize != tokenBase) return 0;
		var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top
		// Kludge to prevent 'maybelse' from blocking lexical scope pops
		if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
			var c = state.cc[i];
			if (c == poplex) lexical = lexical.prev;
			else if (c != maybeelse && c != popcontext) break;
		}
		while ((lexical.type == "stat" || lexical.type == "form") &&
				(firstChar == "}" || ((top = state.cc[state.cc.length - 1]) &&
									(top == maybeoperatorComma || top == maybeoperatorNoComma) &&
									!/^[,\.=+\-*:?[\(]/.test(textAfter))))
			lexical = lexical.prev;
		if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
			lexical = lexical.prev;
		var type = lexical.type, closing = firstChar == type;
	
		if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info.length + 1 : 0);
		else if (type == "form" && firstChar == "{") return lexical.indented;
		else if (type == "form") return lexical.indented + indentUnit;
		else if (type == "stat")
			return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
		else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
			return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
		else if (lexical.align) return lexical.column + (closing ? 0 : 1);
		else return lexical.indented + (closing ? 0 : indentUnit);
		},
	
		electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
		blockCommentStart: jsonMode ? null : "/*",
		blockCommentEnd: jsonMode ? null : "*/",
		blockCommentContinue: jsonMode ? null : " * ",
		lineComment: jsonMode ? null : "//",
		fold: "brace",
		closeBrackets: "()[]{}''\"\"``",
	
		helperType: jsonMode ? "json" : "javascript",
		jsonldMode: jsonldMode,
		jsonMode: jsonMode,
	
		expressionAllowed: expressionAllowed,
	
		skipExpression: function(state) {
		parseJS(state, "atom", "atom", "true", new CodeMirror.StringStream("", 2, null))
		}
	};
	});
	
	CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
	
	CodeMirror.defineMIME("text/javascript", "javascript");
	CodeMirror.defineMIME("text/ecmascript", "javascript");
	CodeMirror.defineMIME("application/javascript", "javascript");
	CodeMirror.defineMIME("application/x-javascript", "javascript");
	CodeMirror.defineMIME("application/ecmascript", "javascript");
	CodeMirror.defineMIME("application/json", { name: "javascript", json: true });
	CodeMirror.defineMIME("application/x-json", { name: "javascript", json: true });
	CodeMirror.defineMIME("application/manifest+json", { name: "javascript", json: true })
	CodeMirror.defineMIME("application/ld+json", { name: "javascript", jsonld: true });
	CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
	CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
	
});
			
				
				var CodeMirror = loadCm();
				globalThis.CodeMirror = CodeMirror;
				
				loadJs();
			</script>
		<grammarly-desktop-integration data-grammarly-shadow-root="true"></grammarly-desktop-integration><grammarly-mirror data-grammarly-shadow-root="true" class="dnXmp"></grammarly-mirror><grammarly-popups data-grammarly-shadow-root="true" class="dnXmp"></grammarly-popups></body></html>