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remove codemirror docs from tracking

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Berkeley Martinez
2015-08-12 21:01:07 -07:00
parent 3196824b61
commit e76b5c8e7f
15 changed files with 0 additions and 6433 deletions
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57
public/js/lib/codemirror/doc/activebookmark.js
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// Kludge in HTML5 tag recognition in IE8
document.createElement("section");
document.createElement("article");
(function() {
if (!window.addEventListener) return;
var pending = false, prevVal = null;
function updateSoon() {
if (!pending) {
pending = true;
setTimeout(update, 250);
}
}
function update() {
pending = false;
var marks = document.getElementById("nav").getElementsByTagName("a"), found;
for (var i = 0; i < marks.length; ++i) {
var mark = marks[i], m;
if (mark.getAttribute("data-default")) {
if (found == null) found = i;
} else if (m = mark.href.match(/#(.*)/)) {
var ref = document.getElementById(m[1]);
if (ref && ref.getBoundingClientRect().top < 50)
found = i;
}
}
if (found != null && found != prevVal) {
prevVal = found;
var lis = document.getElementById("nav").getElementsByTagName("li");
for (var i = 0; i < lis.length; ++i) lis[i].className = "";
for (var i = 0; i < marks.length; ++i) {
if (found == i) {
marks[i].className = "active";
for (var n = marks[i]; n; n = n.parentNode)
if (n.nodeName == "LI") n.className = "active";
} else {
marks[i].className = "";
}
}
}
}
window.addEventListener("scroll", updateSoon);
window.addEventListener("load", updateSoon);
window.addEventListener("hashchange", function() {
setTimeout(function() {
var hash = document.location.hash, found = null, m;
var marks = document.getElementById("nav").getElementsByTagName("a");
for (var i = 0; i < marks.length; i++)
if ((m = marks[i].href.match(/(#.*)/)) && m[1] == hash) { found = i; break; }
if (found != null) for (var i = 0; i < marks.length; i++)
marks[i].className = i == found ? "active" : "";
}, 300);
});
})();

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public/js/lib/codemirror/doc/compress.html
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<!doctype html>
<title>CodeMirror: Compression Helper</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="docs.css">
<script src="../lib/codemirror.js"></script>
<script src="../mode/javascript/javascript.js"></script>
<link rel=stylesheet href="../lib/codemirror.css">
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="logo.png"></a>
<ul>
<li><a href="../index.html">Home</a>
<li><a href="manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a class=active href="#">Compression helper</a>
</ul>
</div>
<article>
<h2>Script compression helper</h2>
<p>To optimize loading CodeMirror, especially when including a
bunch of different modes, it is recommended that you combine and
minify (and preferably also gzip) the scripts. This page makes
those first two steps very easy. Simply select the version and
scripts you need in the form below, and
click <strong>Compress</strong> to download the minified script
file.</p>
<form id="form" action="http://marijnhaverbeke.nl/uglifyjs" method="post" onsubmit="generateHeader();">
<input type="hidden" id="download" name="download" value="codemirror-compressed.js"/>
<p>Version: <select id="version" onchange="setVersion(this);" style="padding: 1px;">
<option value="http://codemirror.net/">HEAD</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.10.0;f=">4.10</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.9.0;f=">4.9</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.8.0;f=">4.8</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.7.0;f=">4.7</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.6.0;f=">4.6</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.5.0;f=">4.5</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.4.0;f=">4.4</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.3.0;f=">4.3</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.2.1;f=">4.2</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.2.0;f=">4.2</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.1.0;f=">4.1</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=4.0.3;f=">4.0</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.23.0;f=">3.23</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.22.0;f=">3.22</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.21.0;f=">3.21</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.20.0;f=">3.20</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.19.0;f=">3.19</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.18.0;f=">3.18</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.16.0;f=">3.16</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.15.0;f=">3.15</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.14.0;f=">3.14</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=3.13.0;f=">3.13</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v3.12;f=">3.12</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v3.11;f=">3.11</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v3.1;f=">3.1</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v3.02;f=">3.02</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v3.01;f=">3.01</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v3.0;f=">3.0</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.38;f=">2.38</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.37;f=">2.37</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.36;f=">2.36</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.35;f=">2.35</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.34;f=">2.34</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.33;f=">2.33</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.32;f=">2.32</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.31;f=">2.31</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.3;f=">2.3</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.25;f=">2.25</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.24;f=">2.24</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.23;f=">2.23</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.22;f=">2.22</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.21;f=">2.21</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.2;f=">2.2</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.18;f=">2.18</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.16;f=">2.16</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.15;f=">2.15</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.13;f=">2.13</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.12;f=">2.12</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.11;f=">2.11</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.1;f=">2.1</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.02;f=">2.02</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.01;f=">2.01</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=v2.0;f=">2.0</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=beta2;f=">beta2</option>
<option value="http://marijnhaverbeke.nl/git/codemirror?a=blob_plain;hb=beta1;f=">beta1</option>
</select></p>
<select multiple="multiple" size="20" name="code_url" style="width: 40em;" class="field" id="files">
<optgroup label="CodeMirror Library">
<option value="http://codemirror.net/lib/codemirror.js" selected>codemirror.js</option>
</optgroup>
<optgroup label="Modes">
<option value="http://codemirror.net/mode/apl/apl.js">apl.js</option>
<option value="http://codemirror.net/mode/clike/clike.js">clike.js</option>
<option value="http://codemirror.net/mode/clojure/clojure.js">clojure.js</option>
<option value="http://codemirror.net/mode/cobol/cobol.js">cobol.js</option>
<option value="http://codemirror.net/mode/coffeescript/coffeescript.js">coffeescript.js</option>
<option value="http://codemirror.net/mode/commonlisp/commonlisp.js">commonlisp.js</option>
<option value="http://codemirror.net/mode/css/css.js">css.js</option>
<option value="http://codemirror.net/mode/cypher/cypher.js">cypher.js</option>
<option value="http://codemirror.net/mode/d/d.js">d.js</option>
<option value="http://codemirror.net/mode/dart/dart.js">dart.js</option>
<option value="http://codemirror.net/mode/diff/diff.js">diff.js</option>
<option value="http://codemirror.net/mode/django/django.js">django.js</option>
<option value="http://codemirror.net/mode/dockerfile/dockerfile.js">dockerfile.js</option>
<option value="http://codemirror.net/mode/dtd/dtd.js">dtd.js</option>
<option value="http://codemirror.net/mode/dylan/dylan.js">dylan.js</option>
<option value="http://codemirror.net/mode/ebnf/ebnf.js">ebnf.js</option>
<option value="http://codemirror.net/mode/ecl/ecl.js">ecl.js</option>
<option value="http://codemirror.net/mode/eiffel/eiffel.js">eiffel.js</option>
<option value="http://codemirror.net/mode/erlang/erlang.js">erlang.js</option>
<option value="http://codemirror.net/mode/fortran/fortran.js">fortran.js</option>
<option value="http://codemirror.net/mode/gfm/gfm.js">gfm.js</option>
<option value="http://codemirror.net/mode/gas/gas.js">gas.js</option>
<option value="http://codemirror.net/mode/gherkin/gherkin.js">gherkin.js</option>
<option value="http://codemirror.net/mode/go/go.js">go.js</option>
<option value="http://codemirror.net/mode/groovy/groovy.js">groovy.js</option>
<option value="http://codemirror.net/mode/haml/haml.js">haml.js</option>
<option value="http://codemirror.net/mode/haskell/haskell.js">haskell.js</option>
<option value="http://codemirror.net/mode/haxe/haxe.js">haxe.js</option>
<option value="http://codemirror.net/mode/htmlembedded/htmlembedded.js">htmlembedded.js</option>
<option value="http://codemirror.net/mode/htmlmixed/htmlmixed.js">htmlmixed.js</option>
<option value="http://codemirror.net/mode/http/http.js">http.js</option>
<option value="http://codemirror.net/mode/idl/idl.js">idl.js</option>
<option value="http://codemirror.net/mode/jade/jade.js">jade.js</option>
<option value="http://codemirror.net/mode/javascript/javascript.js">javascript.js</option>
<option value="http://codemirror.net/mode/jinja2/jinja2.js">jinja2.js</option>
<option value="http://codemirror.net/mode/julia/julia.js">julia.js</option>
<option value="http://codemirror.net/mode/kotlin/kotlin.js">kotlin.js</option>
<option value="http://codemirror.net/mode/livescript/livescript.js">livescript.js</option>
<option value="http://codemirror.net/mode/lua/lua.js">lua.js</option>
<option value="http://codemirror.net/mode/markdown/markdown.js">markdown.js</option>
<option value="http://codemirror.net/mode/mirc/mirc.js">mirc.js</option>
<option value="http://codemirror.net/mode/mllike/mllike.js">mllike.js</option>
<option value="http://codemirror.net/mode/modelica/modelica.js">modelica.js</option>
<option value="http://codemirror.net/mode/nginx/nginx.js">nginx.js</option>
<option value="http://codemirror.net/mode/ntriples/ntriples.js">ntriples.js</option>
<option value="http://codemirror.net/mode/octave/octave.js">octave.js</option>
<option value="http://codemirror.net/mode/pascal/pascal.js">pascal.js</option>
<option value="http://codemirror.net/mode/pegjs/pegjs.js">pegjs.js</option>
<option value="http://codemirror.net/mode/perl/perl.js">perl.js</option>
<option value="http://codemirror.net/mode/php/php.js">php.js</option>
<option value="http://codemirror.net/mode/pig/pig.js">pig.js</option>
<option value="http://codemirror.net/mode/properties/properties.js">properties.js</option>
<option value="http://codemirror.net/mode/python/python.js">python.js</option>
<option value="http://codemirror.net/mode/puppet/puppet.js">puppet.js</option>
<option value="http://codemirror.net/mode/q/q.js">q.js</option>
<option value="http://codemirror.net/mode/r/r.js">r.js</option>
<option value="http://codemirror.net/mode/rpm/rpm.js">rpm.js</option>
<option value="http://codemirror.net/mode/rst/rst.js">rst.js</option>
<option value="http://codemirror.net/mode/ruby/ruby.js">ruby.js</option>
<option value="http://codemirror.net/mode/rust/rust.js">rust.js</option>
<option value="http://codemirror.net/mode/sass/sass.js">sass.js</option>
<option value="http://codemirror.net/mode/scala/scala.js">scala.js</option>
<option value="http://codemirror.net/mode/scheme/scheme.js">scheme.js</option>
<option value="http://codemirror.net/mode/shell/shell.js">shell.js</option>
<option value="http://codemirror.net/mode/sieve/sieve.js">sieve.js</option>
<option value="http://codemirror.net/mode/slim/slim.js">slim.js</option>
<option value="http://codemirror.net/mode/smalltalk/smalltalk.js">smalltalk.js</option>
<option value="http://codemirror.net/mode/smarty/smarty.js">smarty.js</option>
<option value="http://codemirror.net/mode/smartymixed/smartymixed.js">smartymixed.js</option>
<option value="http://codemirror.net/mode/solr/solr.js">solr.js</option>
<option value="http://codemirror.net/mode/soy/soy.js">soy.js</option>
<option value="http://codemirror.net/mode/sparql/sparql.js">sparql.js</option>
<option value="http://codemirror.net/mode/spreadsheet/spreadsheet.js">spreadsheet.js</option>
<option value="http://codemirror.net/mode/sql/sql.js">sql.js</option>
<option value="http://codemirror.net/mode/stex/stex.js">stex.js</option>
<option value="http://codemirror.net/mode/tcl/tcl.js">tcl.js</option>
<option value="http://codemirror.net/mode/textile/textile.js">textile.js</option>
<option value="http://codemirror.net/mode/tiddlywiki/tiddlywiki.js">tiddlywiki.js</option>
<option value="http://codemirror.net/mode/tiki/tiki.js">tiki.js</option>
<option value="http://codemirror.net/mode/toml/toml.js">toml.js</option>
<option value="http://codemirror.net/mode/tornado/tornado.js">tornado.js</option>
<option value="http://codemirror.net/mode/turtle/turtle.js">turtle.js</option>
<option value="http://codemirror.net/mode/vb/vb.js">vb.js</option>
<option value="http://codemirror.net/mode/vbscript/vbscript.js">vbscript.js</option>
<option value="http://codemirror.net/mode/velocity/velocity.js">velocity.js</option>
<option value="http://codemirror.net/mode/verilog/verilog.js">verilog.js</option>
<option value="http://codemirror.net/mode/xml/xml.js">xml.js</option>
<option value="http://codemirror.net/mode/xquery/xquery.js">xquery.js</option>
<option value="http://codemirror.net/mode/yaml/yaml.js">yaml.js</option>
<option value="http://codemirror.net/mode/z80/z80.js">z80.js</option>
</optgroup>
<optgroup label="Add-ons">
<option value="http://codemirror.net/addon/selection/active-line.js">active-line.js</option>
<option value="http://codemirror.net/addon/hint/anyword-hint.js">anyword-hint.js</option>
<option value="http://codemirror.net/addon/fold/brace-fold.js">brace-fold.js</option>
<option value="http://codemirror.net/addon/edit/closebrackets.js">closebrackets.js</option>
<option value="http://codemirror.net/addon/edit/closetag.js">closetag.js</option>
<option value="http://codemirror.net/addon/runmode/colorize.js">colorize.js</option>
<option value="http://codemirror.net/addon/comment/comment.js">comment.js</option>
<option value="http://codemirror.net/addon/fold/comment-fold.js">comment-fold.js</option>
<option value="http://codemirror.net/addon/comment/continuecomment.js">continuecomment.js</option>
<option value="http://codemirror.net/addon/edit/continuelist.js">continuelist.js</option>
<option value="http://codemirror.net/addon/hint/css-hint.js">css-hint.js</option>
<option value="http://codemirror.net/addon/dialog/dialog.js">dialog.js</option>
<option value="http://codemirror.net/addon/fold/foldcode.js">foldcode.js</option>
<option value="http://codemirror.net/addon/fold/foldgutter.js">foldgutter.js</option>
<option value="http://codemirror.net/addon/display/fullscreen.js">fullscreen.js</option>
<option value="http://codemirror.net/addon/wrap/hardwrap.js">hardwrap.js</option>
<option value="http://codemirror.net/addon/hint/html-hint.js">html-hint.js</option>
<option value="http://codemirror.net/addon/fold/indent-fold.js">indent-fold.js</option>
<option value="http://codemirror.net/addon/hint/javascript-hint.js">javascript-hint.js</option>
<option value="http://codemirror.net/addon/lint/javascript-lint.js">javascript-lint.js</option>
<option value="http://codemirror.net/addon/lint/json-lint.js">json-lint.js</option>
<option value="http://codemirror.net/addon/lint/lint.js">lint.js</option>
<option value="http://codemirror.net/addon/mode/loadmode.js">loadmode.js</option>
<option value="http://codemirror.net/addon/fold/markdown-fold.js">markdown-fold.js</option>
<option value="http://codemirror.net/addon/selection/mark-selection.js">mark-selection.js</option>
<option value="http://codemirror.net/addon/search/match-highlighter.js">match-highlighter.js</option>
<option value="http://codemirror.net/addon/edit/matchbrackets.js">matchbrackets.js</option>
<option value="http://codemirror.net/addon/edit/matchtags.js">matchtags.js</option>
<option value="http://codemirror.net/addon/merge/merge.js">merge.js</option>
<option value="http://codemirror.net/addon/mode/multiplex.js">multiplex.js</option>
<option value="http://codemirror.net/addon/mode/overlay.js">overlay.js</option>
<option value="http://codemirror.net/addon/display/placeholder.js">placeholder.js</option>
<option value="http://codemirror.net/addon/display/rulers.js">rulers.js</option>
<option value="http://codemirror.net/addon/runmode/runmode.js">runmode.js</option>
<option value="http://codemirror.net/addon/runmode/runmode.node.js">runmode.node.js</option>
<option value="http://codemirror.net/addon/runmode/runmode-standalone.js">runmode-standalone.js</option>
<option value="http://codemirror.net/addon/search/search.js">search.js</option>
<option value="http://codemirror.net/addon/search/searchcursor.js">searchcursor.js</option>
<option value="http://codemirror.net/addon/hint/show-hint.js">show-hint.js</option>
<option value="http://codemirror.net/addon/mode/simple.js">simple.js</option>
<option value="http://codemirror.net/addon/scroll/simplescrollbars.js">simplescrollbars.js</option>
<option value="http://codemirror.net/addon/hint/sql-hint.js">sql-hint.js</option>
<option value="http://codemirror.net/addon/edit/trailingspace.js">trailingspace.js</option>
<option value="http://codemirror.net/addon/tern/tern.js">tern.js</option>
<option value="http://codemirror.net/addon/fold/xml-fold.js">xml-fold.js</option>
<option value="http://codemirror.net/addon/hint/xml-hint.js">xml-hint.js</option>
<option value="http://codemirror.net/addon/hint/yaml-lint.js">yaml-lint.js</option>
</optgroup>
<optgroup label="Keymaps">
<option value="http://codemirror.net/keymap/emacs.js">emacs.js</option>
<option value="http://codemirror.net/keymap/sublime.js">sublime.js</option>
<option value="http://codemirror.net/keymap/vim.js">vim.js</option>
</optgroup>
</select>
<p>
<button type="submit">Compress</button> with <a href="http://github.com/mishoo/UglifyJS/">UglifyJS</a>
</p>
<input type="hidden" id="header" name="header">
<p>Custom code to add to the compressed file:<textarea name="js_code" style="width: 100%; height: 15em;" class="field" id="js_code"></textarea></p>
</form>
<script type="text/javascript">
CodeMirror.fromTextArea(document.getElementById("js_code")).getWrapperElement().className += " field";
function setVersion(ver) {
var urlprefix = ver.options[ver.selectedIndex].value;
var select = document.getElementById("files"), m;
for (var optgr = select.firstChild; optgr; optgr = optgr.nextSibling)
for (var opt = optgr.firstChild; opt; opt = opt.nextSibling) {
if (opt.nodeName != "OPTION")
continue;
else if (m = opt.value.match(/^http:\/\/codemirror.net\/(.*)$/))
opt.value = urlprefix + m[1];
else if (m = opt.value.match(/http:\/\/marijnhaverbeke.nl\/git\/codemirror\?a=blob_plain;hb=[^;]+;f=(.*)$/))
opt.value = urlprefix + m[1];
}
}
function generateHeader() {
var versionNode = document.getElementById("version");
var version = versionNode.options[versionNode.selectedIndex].label
var filesNode = document.getElementById("files");
var optGroupHeaderIncluded;
// Generate the comment
var str = "/* CodeMirror - Minified & Bundled\n";
str += " Generated on " + new Date().toLocaleDateString() + " with http://codemirror.net/doc/compress.html\n";
str += " Version: " + version + "\n\n";
for (var group = filesNode.firstChild; group; group = group.nextSibling) {
optGroupHeaderIncluded = false;
for (var option = group.firstChild; option; option = option.nextSibling) {
if (option.nodeName !== "OPTION") {
continue;
} else if (option.selected) {
if (!optGroupHeaderIncluded) {
str += " " + group.label + ":\n";
optGroupHeaderIncluded = true;
}
str += " - " + option.label + "\n";
}
}
}
str += " */\n\n";
document.getElementById("header").value = str;
}
</script>
</article>

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@ -1,241 +0,0 @@
@font-face {
font-family: 'Source Sans Pro';
font-style: normal;
font-weight: 400;
src: local('Source Sans Pro'), local('SourceSansPro-Regular'), url(//themes.googleusercontent.com/static/fonts/sourcesanspro/v5/ODelI1aHBYDBqgeIAH2zlBM0YzuT7MdOe03otPbuUS0.woff) format('woff');
}
body, html { margin: 0; padding: 0; height: 100%; }
section, article { display: block; padding: 0; }
body {
background: #f8f8f8;
font-family: 'Source Sans Pro', Helvetica, Arial, sans-serif;
line-height: 1.5;
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p { margin-top: 0; }
h2, h3, h1 {
font-weight: normal;
margin-bottom: .7em;
}
h1 { font-size: 140%; }
h2 { font-size: 120%; }
h3 { font-size: 110%; }
article > h2:first-child, section:first-child > h2 { margin-top: 0; }
#nav h1 {
margin-right: 12px;
margin-top: 0;
margin-bottom: 2px;
color: #d30707;
letter-spacing: .5px;
}
a, a:visited, a:link, .quasilink {
color: #A21313;
text-decoration: none;
}
em {
padding-right: 2px;
}
.quasilink {
cursor: pointer;
}
article {
max-width: 700px;
margin: 0 0 0 160px;
border-left: 2px solid #E30808;
border-right: 1px solid #ddd;
padding: 30px 50px 100px 50px;
background: white;
z-index: 2;
position: relative;
min-height: 100%;
box-sizing: border-box;
-moz-box-sizing: border-box;
}
#nav {
position: fixed;
padding-top: 30px;
max-height: 100%;
box-sizing: -moz-border-box;
box-sizing: border-box;
overflow-y: auto;
left: 0; right: none;
width: 160px;
text-align: right;
z-index: 1;
}
@media screen and (min-width: 1000px) {
article {
margin: 0 auto;
}
#nav {
right: 50%;
width: auto;
border-right: 349px solid transparent;
}
}
#nav ul {
display: block;
margin: 0; padding: 0;
margin-bottom: 32px;
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#nav li {
display: block;
margin-bottom: 4px;
}
#nav li ul {
font-size: 80%;
margin-bottom: 0;
display: none;
}
#nav li.active ul {
display: block;
}
#nav li li a {
padding-right: 20px;
display: inline-block;
}
#nav ul a {
color: black;
padding: 0 7px 1px 11px;
}
#nav ul a.active, #nav ul a:hover {
border-bottom: 1px solid #E30808;
margin-bottom: -1px;
color: #E30808;
}
#logo {
border: 0;
margin-right: 12px;
margin-bottom: 25px;
}
section {
border-top: 1px solid #E30808;
margin: 1.5em 0;
}
section.first {
border: none;
margin-top: 0;
}
#demo {
position: relative;
}
#demolist {
position: absolute;
right: 5px;
top: 5px;
z-index: 25;
}
.bankinfo {
text-align: left;
display: none;
padding: 0 .5em;
position: absolute;
border: 2px solid #aaa;
border-radius: 5px;
background: #eee;
top: 10px;
left: 30px;
}
.bankinfo_close {
position: absolute;
top: 0; right: 6px;
font-weight: bold;
cursor: pointer;
}
.bigbutton {
cursor: pointer;
text-align: center;
padding: 0 1em;
display: inline-block;
color: white;
position: relative;
line-height: 1.9;
color: white !important;
background: #A21313;
}
.bigbutton.right {
border-bottom-left-radius: 100px;
border-top-left-radius: 100px;
}
.bigbutton.left {
border-bottom-right-radius: 100px;
border-top-right-radius: 100px;
}
.bigbutton:hover {
background: #E30808;
}
th {
text-decoration: underline;
font-weight: normal;
text-align: left;
}
#features ul {
list-style: none;
margin: 0 0 1em;
padding: 0 0 0 1.2em;
}
#features li:before {
content: "-";
width: 1em;
display: inline-block;
padding: 0;
margin: 0;
margin-left: -1em;
}
.rel {
margin-bottom: 0;
}
.rel-note {
margin-top: 0;
color: #555;
}
pre {
padding-left: 15px;
border-left: 2px solid #ddd;
}
code {
padding: 0 2px;
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strong {
text-decoration: underline;
font-weight: normal;
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.field {
border: 1px solid #A21313;
}

503
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<!doctype html>
<title>CodeMirror: Internals</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="docs.css">
<style>dl dl {margin: 0;} .update {color: #d40 !important}</style>
<script src="activebookmark.js"></script>
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="logo.png"></a>
<ul>
<li><a href="../index.html">Home</a>
<li><a href="manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a href="#top">Introduction</a></li>
<li><a href="#approach">General Approach</a></li>
<li><a href="#input">Input</a></li>
<li><a href="#selection">Selection</a></li>
<li><a href="#update">Intelligent Updating</a></li>
<li><a href="#parse">Parsing</a></li>
<li><a href="#summary">What Gives?</a></li>
<li><a href="#btree">Content Representation</a></li>
<li><a href="#keymap">Key Maps</a></li>
</ul>
</div>
<article>
<h2 id=top>(Re-) Implementing A Syntax-Highlighting Editor in JavaScript</h2>
<p style="font-size: 85%" id="intro">
<strong>Topic:</strong> JavaScript, code editor implementation<br>
<strong>Author:</strong> Marijn Haverbeke<br>
<strong>Date:</strong> March 2nd 2011 (updated November 13th 2011)
</p>
<p style="padding: 0 3em 0 2em"><strong>Caution</strong>: this text was written briefly after
version 2 was initially written. It no longer (even including the
update at the bottom) fully represents the current implementation. I'm
leaving it here as a historic document. For more up-to-date
information, look at the entries
tagged <a href="http://marijnhaverbeke.nl/blog/#cm-internals">cm-internals</a>
on my blog.</p>
<p>This is a followup to
my <a href="http://codemirror.net/story.html">Brutal Odyssey to the
Dark Side of the DOM Tree</a> story. That one describes the
mind-bending process of implementing (what would become) CodeMirror 1.
This one describes the internals of CodeMirror 2, a complete rewrite
and rethink of the old code base. I wanted to give this piece another
Hunter Thompson copycat subtitle, but somehow that would be out of
place—the process this time around was one of straightforward
engineering, requiring no serious mind-bending whatsoever.</p>
<p>So, what is wrong with CodeMirror 1? I'd estimate, by mailing list
activity and general search-engine presence, that it has been
integrated into about a thousand systems by now. The most prominent
one, since a few weeks,
being <a href="http://googlecode.blogspot.com/2011/01/make-quick-fixes-quicker-on-google.html">Google
code's project hosting</a>. It works, and it's being used widely.</p>
<p>Still, I did not start replacing it because I was bored. CodeMirror
1 was heavily reliant on <code>designMode</code>
or <code>contentEditable</code> (depending on the browser). Neither of
these are well specified (HTML5 tries
to <a href="http://www.w3.org/TR/html5/editing.html#contenteditable">specify</a>
their basics), and, more importantly, they tend to be one of the more
obscure and buggy areas of browser functionality—CodeMirror, by using
this functionality in a non-typical way, was constantly running up
against browser bugs. WebKit wouldn't show an empty line at the end of
the document, and in some releases would suddenly get unbearably slow.
Firefox would show the cursor in the wrong place. Internet Explorer
would insist on linkifying everything that looked like a URL or email
address, a behaviour that can't be turned off. Some bugs I managed to
work around (which was often a frustrating, painful process), others,
such as the Firefox cursor placement, I gave up on, and had to tell
user after user that they were known problems, but not something I
could help.</p>
<p>Also, there is the fact that <code>designMode</code> (which seemed
to be less buggy than <code>contentEditable</code> in Webkit and
Firefox, and was thus used by CodeMirror 1 in those browsers) requires
a frame. Frames are another tricky area. It takes some effort to
prevent getting tripped up by domain restrictions, they don't
initialize synchronously, behave strangely in response to the back
button, and, on several browsers, can't be moved around the DOM
without having them re-initialize. They did provide a very nice way to
namespace the library, though—CodeMirror 1 could freely pollute the
namespace inside the frame.</p>
<p>Finally, working with an editable document means working with
selection in arbitrary DOM structures. Internet Explorer (8 and
before) has an utterly different (and awkward) selection API than all
of the other browsers, and even among the different implementations of
<code>document.selection</code>, details about how exactly a selection
is represented vary quite a bit. Add to that the fact that Opera's
selection support tended to be very buggy until recently, and you can
imagine why CodeMirror 1 contains 700 lines of selection-handling
code.</p>
<p>And that brings us to the main issue with the CodeMirror 1
code base: The proportion of browser-bug-workarounds to real
application code was getting dangerously high. By building on top of a
few dodgy features, I put the system in a vulnerable position—any
incompatibility and bugginess in these features, I had to paper over
with my own code. Not only did I have to do some serious stunt-work to
get it to work on older browsers (as detailed in the
previous <a href="http://codemirror.net/story.html">story</a>), things
also kept breaking in newly released versions, requiring me to come up
with <em>new</em> scary hacks in order to keep up. This was starting
to lose its appeal.</p>
<section id=approach>
<h2>General Approach</h2>
<p>What CodeMirror 2 does is try to sidestep most of the hairy hacks
that came up in version 1. I owe a lot to the
<a href="http://ace.ajax.org">ACE</a> editor for inspiration on how to
approach this.</p>
<p>I absolutely did not want to be completely reliant on key events to
generate my input. Every JavaScript programmer knows that key event
information is horrible and incomplete. Some people (most awesomely
Mihai Bazon with <a href="http://ymacs.org">Ymacs</a>) have been able
to build more or less functioning editors by directly reading key
events, but it takes a lot of work (the kind of never-ending, fragile
work I described earlier), and will never be able to properly support
things like multi-keystoke international character
input. <a href="#keymap" class="update">[see below for caveat]</a></p>
<p>So what I do is focus a hidden textarea, and let the browser
believe that the user is typing into that. What we show to the user is
a DOM structure we built to represent his document. If this is updated
quickly enough, and shows some kind of believable cursor, it feels
like a real text-input control.</p>
<p>Another big win is that this DOM representation does not have to
span the whole document. Some CodeMirror 1 users insisted that they
needed to put a 30 thousand line XML document into CodeMirror. Putting
all that into the DOM takes a while, especially since, for some
reason, an editable DOM tree is slower than a normal one on most
browsers. If we have full control over what we show, we must only
ensure that the visible part of the document has been added, and can
do the rest only when needed. (Fortunately, the <code>onscroll</code>
event works almost the same on all browsers, and lends itself well to
displaying things only as they are scrolled into view.)</p>
</section>
<section id="input">
<h2>Input</h2>
<p>ACE uses its hidden textarea only as a text input shim, and does
all cursor movement and things like text deletion itself by directly
handling key events. CodeMirror's way is to let the browser do its
thing as much as possible, and not, for example, define its own set of
key bindings. One way to do this would have been to have the whole
document inside the hidden textarea, and after each key event update
the display DOM to reflect what's in that textarea.</p>
<p>That'd be simple, but it is not realistic. For even medium-sized
document the editor would be constantly munging huge strings, and get
terribly slow. What CodeMirror 2 does is put the current selection,
along with an extra line on the top and on the bottom, into the
textarea.</p>
<p>This means that the arrow keys (and their ctrl-variations), home,
end, etcetera, do not have to be handled specially. We just read the
cursor position in the textarea, and update our cursor to match it.
Also, copy and paste work pretty much for free, and people get their
native key bindings, without any special work on my part. For example,
I have emacs key bindings configured for Chrome and Firefox. There is
no way for a script to detect this. <a class="update"
href="#keymap">[no longer the case]</a></p>
<p>Of course, since only a small part of the document sits in the
textarea, keys like page up and ctrl-end won't do the right thing.
CodeMirror is catching those events and handling them itself.</p>
</section>
<section id="selection">
<h2>Selection</h2>
<p>Getting and setting the selection range of a textarea in modern
browsers is trivial—you just use the <code>selectionStart</code>
and <code>selectionEnd</code> properties. On IE you have to do some
insane stuff with temporary ranges and compensating for the fact that
moving the selection by a 'character' will treat \r\n as a single
character, but even there it is possible to build functions that
reliably set and get the selection range.</p>
<p>But consider this typical case: When I'm somewhere in my document,
press shift, and press the up arrow, something gets selected. Then, if
I, still holding shift, press the up arrow again, the top of my
selection is adjusted. The selection remembers where its <em>head</em>
and its <em>anchor</em> are, and moves the head when we shift-move.
This is a generally accepted property of selections, and done right by
every editing component built in the past twenty years.</p>
<p>But not something that the browser selection APIs expose.</p>
<p>Great. So when someone creates an 'upside-down' selection, the next
time CodeMirror has to update the textarea, it'll re-create the
selection as an 'upside-up' selection, with the anchor at the top, and
the next cursor motion will behave in an unexpected way—our second
up-arrow press in the example above will not do anything, since it is
interpreted in exactly the same way as the first.</p>
<p>No problem. We'll just, ehm, detect that the selection is
upside-down (you can tell by the way it was created), and then, when
an upside-down selection is present, and a cursor-moving key is
pressed in combination with shift, we quickly collapse the selection
in the textarea to its start, allow the key to take effect, and then
combine its new head with its old anchor to get the <em>real</em>
selection.</p>
<p>In short, scary hacks could not be avoided entirely in CodeMirror
2.</p>
<p>And, the observant reader might ask, how do you even know that a
key combo is a cursor-moving combo, if you claim you support any
native key bindings? Well, we don't, but we can learn. The editor
keeps a set known cursor-movement combos (initialized to the
predictable defaults), and updates this set when it observes that
pressing a certain key had (only) the effect of moving the cursor.
This, of course, doesn't work if the first time the key is used was
for extending an inverted selection, but it works most of the
time.</p>
</section>
<section id="update">
<h2>Intelligent Updating</h2>
<p>One thing that always comes up when you have a complicated internal
state that's reflected in some user-visible external representation
(in this case, the displayed code and the textarea's content) is
keeping the two in sync. The naive way is to just update the display
every time you change your state, but this is not only error prone
(you'll forget), it also easily leads to duplicate work on big,
composite operations. Then you start passing around flags indicating
whether the display should be updated in an attempt to be efficient
again and, well, at that point you might as well give up completely.</p>
<p>I did go down that road, but then switched to a much simpler model:
simply keep track of all the things that have been changed during an
action, and then, only at the end, use this information to update the
user-visible display.</p>
<p>CodeMirror uses a concept of <em>operations</em>, which start by
calling a specific set-up function that clears the state and end by
calling another function that reads this state and does the required
updating. Most event handlers, and all the user-visible methods that
change state are wrapped like this. There's a method
called <code>operation</code> that accepts a function, and returns
another function that wraps the given function as an operation.</p>
<p>It's trivial to extend this (as CodeMirror does) to detect nesting,
and, when an operation is started inside an operation, simply
increment the nesting count, and only do the updating when this count
reaches zero again.</p>
<p>If we have a set of changed ranges and know the currently shown
range, we can (with some awkward code to deal with the fact that
changes can add and remove lines, so we're dealing with a changing
coordinate system) construct a map of the ranges that were left
intact. We can then compare this map with the part of the document
that's currently visible (based on scroll offset and editor height) to
determine whether something needs to be updated.</p>
<p>CodeMirror uses two update algorithms—a full refresh, where it just
discards the whole part of the DOM that contains the edited text and
rebuilds it, and a patch algorithm, where it uses the information
about changed and intact ranges to update only the out-of-date parts
of the DOM. When more than 30 percent (which is the current heuristic,
might change) of the lines need to be updated, the full refresh is
chosen (since it's faster to do than painstakingly finding and
updating all the changed lines), in the other case it does the
patching (so that, if you scroll a line or select another character,
the whole screen doesn't have to be
re-rendered). <span class="update">[the full-refresh
algorithm was dropped, it wasn't really faster than the patching
one]</span></p>
<p>All updating uses <code>innerHTML</code> rather than direct DOM
manipulation, since that still seems to be by far the fastest way to
build documents. There's a per-line function that combines the
highlighting, <a href="manual.html#markText">marking</a>, and
selection info for that line into a snippet of HTML. The patch updater
uses this to reset individual lines, the refresh updater builds an
HTML chunk for the whole visible document at once, and then uses a
single <code>innerHTML</code> update to do the refresh.</p>
</section>
<section id="parse">
<h2>Parsers can be Simple</h2>
<p>When I wrote CodeMirror 1, I
thought <a href="http://codemirror.net/story.html#parser">interruptable
parsers</a> were a hugely scary and complicated thing, and I used a
bunch of heavyweight abstractions to keep this supposed complexity
under control: parsers
were <a href="http://bob.pythonmac.org/archives/2005/07/06/iteration-in-javascript/">iterators</a>
that consumed input from another iterator, and used funny
closure-resetting tricks to copy and resume themselves.</p>
<p>This made for a rather nice system, in that parsers formed strictly
separate modules, and could be composed in predictable ways.
Unfortunately, it was quite slow (stacking three or four iterators on
top of each other), and extremely intimidating to people not used to a
functional programming style.</p>
<p>With a few small changes, however, we can keep all those
advantages, but simplify the API and make the whole thing less
indirect and inefficient. CodeMirror
2's <a href="manual.html#modeapi">mode API</a> uses explicit state
objects, and makes the parser/tokenizer a function that simply takes a
state and a character stream abstraction, advances the stream one
token, and returns the way the token should be styled. This state may
be copied, optionally in a mode-defined way, in order to be able to
continue a parse at a given point. Even someone who's never touched a
lambda in his life can understand this approach. Additionally, far
fewer objects are allocated in the course of parsing now.</p>
<p>The biggest speedup comes from the fact that the parsing no longer
has to touch the DOM though. In CodeMirror 1, on an older browser, you
could <em>see</em> the parser work its way through the document,
managing some twenty lines in each 50-millisecond time slice it got. It
was reading its input from the DOM, and updating the DOM as it went
along, which any experienced JavaScript programmer will immediately
spot as a recipe for slowness. In CodeMirror 2, the parser usually
finishes the whole document in a single 100-millisecond time slice—it
manages some 1500 lines during that time on Chrome. All it has to do
is munge strings, so there is no real reason for it to be slow
anymore.</p>
</section>
<section id="summary">
<h2>What Gives?</h2>
<p>Given all this, what can you expect from CodeMirror 2?</p>
<ul>
<li><strong>Small.</strong> the base library is
some <span class="update">45k</span> when minified
now, <span class="update">17k</span> when gzipped. It's smaller than
its own logo.</li>
<li><strong>Lightweight.</strong> CodeMirror 2 initializes very
quickly, and does almost no work when it is not focused. This means
you can treat it almost like a textarea, have multiple instances on a
page without trouble.</li>
<li><strong>Huge document support.</strong> Since highlighting is
really fast, and no DOM structure is being built for non-visible
content, you don't have to worry about locking up your browser when a
user enters a megabyte-sized document.</li>
<li><strong>Extended API.</strong> Some things kept coming up in the
mailing list, such as marking pieces of text or lines, which were
extremely hard to do with CodeMirror 1. The new version has proper
support for these built in.</li>
<li><strong>Tab support.</strong> Tabs inside editable documents were,
for some reason, a no-go. At least six different people announced they
were going to add tab support to CodeMirror 1, none survived (I mean,
none delivered a working version). CodeMirror 2 no longer removes tabs
from your document.</li>
<li><strong>Sane styling.</strong> <code>iframe</code> nodes aren't
really known for respecting document flow. Now that an editor instance
is a plain <code>div</code> element, it is much easier to size it to
fit the surrounding elements. You don't even have to make it scroll if
you do not <a href="../demo/resize.html">want to</a>.</li>
</ul>
<p>On the downside, a CodeMirror 2 instance is <em>not</em> a native
editable component. Though it does its best to emulate such a
component as much as possible, there is functionality that browsers
just do not allow us to hook into. Doing select-all from the context
menu, for example, is not currently detected by CodeMirror.</p>
<p id="changes" style="margin-top: 2em;"><span style="font-weight:
bold">[Updates from November 13th 2011]</span> Recently, I've made
some changes to the codebase that cause some of the text above to no
longer be current. I've left the text intact, but added markers at the
passages that are now inaccurate. The new situation is described
below.</p>
</section>
<section id="btree">
<h2>Content Representation</h2>
<p>The original implementation of CodeMirror 2 represented the
document as a flat array of line objects. This worked well—splicing
arrays will require the part of the array after the splice to be
moved, but this is basically just a simple <code>memmove</code> of a
bunch of pointers, so it is cheap even for huge documents.</p>
<p>However, I recently added line wrapping and code folding (line
collapsing, basically). Once lines start taking up a non-constant
amount of vertical space, looking up a line by vertical position
(which is needed when someone clicks the document, and to determine
the visible part of the document during scrolling) can only be done
with a linear scan through the whole array, summing up line heights as
you go. Seeing how I've been going out of my way to make big documents
fast, this is not acceptable.</p>
<p>The new representation is based on a B-tree. The leaves of the tree
contain arrays of line objects, with a fixed minimum and maximum size,
and the non-leaf nodes simply hold arrays of child nodes. Each node
stores both the amount of lines that live below them and the vertical
space taken up by these lines. This allows the tree to be indexed both
by line number and by vertical position, and all access has
logarithmic complexity in relation to the document size.</p>
<p>I gave line objects and tree nodes parent pointers, to the node
above them. When a line has to update its height, it can simply walk
these pointers to the top of the tree, adding or subtracting the
difference in height from each node it encounters. The parent pointers
also make it cheaper (in complexity terms, the difference is probably
tiny in normal-sized documents) to find the current line number when
given a line object. In the old approach, the whole document array had
to be searched. Now, we can just walk up the tree and count the sizes
of the nodes coming before us at each level.</p>
<p>I chose B-trees, not regular binary trees, mostly because they
allow for very fast bulk insertions and deletions. When there is a big
change to a document, it typically involves adding, deleting, or
replacing a chunk of subsequent lines. In a regular balanced tree, all
these inserts or deletes would have to be done separately, which could
be really expensive. In a B-tree, to insert a chunk, you just walk
down the tree once to find where it should go, insert them all in one
shot, and then break up the node if needed. This breaking up might
involve breaking up nodes further up, but only requires a single pass
back up the tree. For deletion, I'm somewhat lax in keeping things
balanced—I just collapse nodes into a leaf when their child count goes
below a given number. This means that there are some weird editing
patterns that may result in a seriously unbalanced tree, but even such
an unbalanced tree will perform well, unless you spend a day making
strangely repeating edits to a really big document.</p>
</section>
<section id="keymap">
<h2>Keymaps</h2>
<p><a href="#approach">Above</a>, I claimed that directly catching key
events for things like cursor movement is impractical because it
requires some browser-specific kludges. I then proceeded to explain
some awful <a href="#selection">hacks</a> that were needed to make it
possible for the selection changes to be detected through the
textarea. In fact, the second hack is about as bad as the first.</p>
<p>On top of that, in the presence of user-configurable tab sizes and
collapsed and wrapped lines, lining up cursor movement in the textarea
with what's visible on the screen becomes a nightmare. Thus, I've
decided to move to a model where the textarea's selection is no longer
depended on.</p>
<p>So I moved to a model where all cursor movement is handled by my
own code. This adds support for a goal column, proper interaction of
cursor movement with collapsed lines, and makes it possible for
vertical movement to move through wrapped lines properly, instead of
just treating them like non-wrapped lines.</p>
<p>The key event handlers now translate the key event into a string,
something like <code>Ctrl-Home</code> or <code>Shift-Cmd-R</code>, and
use that string to look up an action to perform. To make keybinding
customizable, this lookup goes through
a <a href="manual.html#option_keyMap">table</a>, using a scheme that
allows such tables to be chained together (for example, the default
Mac bindings fall through to a table named 'emacsy', which defines
basic Emacs-style bindings like <code>Ctrl-F</code>, and which is also
used by the custom Emacs bindings).</p>
<p>A new
option <a href="manual.html#option_extraKeys"><code>extraKeys</code></a>
allows ad-hoc keybindings to be defined in a much nicer way than what
was possible with the
old <a href="manual.html#option_onKeyEvent"><code>onKeyEvent</code></a>
callback. You simply provide an object mapping key identifiers to
functions, instead of painstakingly looking at raw key events.</p>
<p>Built-in commands map to strings, rather than functions, for
example <code>"goLineUp"</code> is the default action bound to the up
arrow key. This allows new keymaps to refer to them without
duplicating any code. New commands can be defined by assigning to
the <code>CodeMirror.commands</code> object, which maps such commands
to functions.</p>
<p>The hidden textarea now only holds the current selection, with no
extra characters around it. This has a nice advantage: polling for
input becomes much, much faster. If there's a big selection, this text
does not have to be read from the textarea every time—when we poll,
just noticing that something is still selected is enough to tell us
that no new text was typed.</p>
<p>The reason that cheap polling is important is that many browsers do
not fire useful events on IME (input method engine) input, which is
the thing where people inputting a language like Japanese or Chinese
use multiple keystrokes to create a character or sequence of
characters. Most modern browsers fire <code>input</code> when the
composing is finished, but many don't fire anything when the character
is updated <em>during</em> composition. So we poll, whenever the
editor is focused, to provide immediate updates of the display.</p>
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<!doctype html>
<title>CodeMirror: Real-world Uses</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="docs.css">
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="logo.png"></a>
<ul>
<li><a href="../index.html">Home</a>
<li><a href="manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a class=active href="#">Real-world uses</a>
</ul>
</div>
<article>
<h2>CodeMirror real-world uses</h2>
<p>Create a <a href="https://github.com/codemirror/codemirror">pull
request</a> or <a href="mailto:marijnh@gmail.com">email me</a> if
you'd like your project to be added to this list.</p>
<ul>
<li><a href="http://brackets.io">Adobe Brackets</a> (code editor)</li>
<li><a href="http://amber-lang.net/">Amber</a> (JavaScript-based Smalltalk system)</li>
<li><a href="http://apachegui.ca/">Apache GUI</a></li>
<li><a href="http://apeye.org/">APEye</a> (tool for testing &amp; documenting APIs)</li>
<li><a href="https://chrome.google.com/webstore/detail/better-text-viewer/lcaidopdffhfemoefoaadecppnjdknkc">Better Text Viewer</a> (plain text reader app for Chrome)</li>
<li><a href="http://blog.bitbucket.org/2013/05/14/edit-your-code-in-the-cloud-with-bitbucket/">Bitbucket</a> (code hosting)</li>
<li><a href="http://buzz.blogger.com/2013/04/improvements-to-blogger-template-html.html">Blogger's template editor</a></li>
<li><a href="http://bluegriffon.org/">BlueGriffon</a> (HTML editor)</li>
<li><a href="http://cargocollective.com/">Cargo Collective</a> (creative publishing platform)</li>
<li><a href="https://developers.google.com/chrome-developer-tools/">Chrome DevTools</a></li>
<li><a href="http://clickhelp.co/">ClickHelp</a> (technical writing tool)</li>
<li><a href="http://codeworld.info/">CodeWorld</a> (Haskell playground)</li>
<li><a href="http://complete-ly.appspot.com/playground/code.playground.html">Complete.ly playground</a></li>
<li><a href="https://codeanywhere.com/">Codeanywhere</a> (multi-platform cloud editor)</li>
<li><a href="http://drupal.org/project/cpn">Code per Node</a> (Drupal module)</li>
<li><a href="http://www.codebugapp.com/">Codebug</a> (PHP Xdebug front-end)</li>
<li><a href="https://github.com/angelozerr/CodeMirror-Eclipse">CodeMirror Eclipse</a> (embed CM in Eclipse)</li>
<li><a href="http://emmet.io/blog/codemirror-movie/">CodeMirror movie</a> (scripted editing demos)</li>
<li><a href="http://code.google.com/p/codemirror2-gwt/">CodeMirror2-GWT</a> (Google Web Toolkit wrapper)</li>
<li><a href="http://www.crunchzilla.com/code-monster">Code Monster</a> & <a href="http://www.crunchzilla.com/code-maven">Code Maven</a> (learning environment)</li>
<li><a href="http://codepen.io">Codepen</a> (gallery of animations)</li>
<li><a href="https://coderpad.io/">Coderpad</a> (interviewing tool)</li>
<li><a href="http://sasstwo.codeschool.com/levels/1/challenges/1">Code School</a> (online tech learning environment)</li>
<li><a href="http://code-snippets.bungeshea.com/">Code Snippets</a> (WordPress snippet management plugin)</li>
<li><a href="http://antonmi.github.io/code_together/">Code together</a> (collaborative editing)</li>
<li><a href="http://codev.it/">Codev</a> (collaborative IDE)</li>
<li><a href="http://www.codezample.com">CodeZample</a> (code snippet sharing)</li>
<li><a href="http://codio.com">Codio</a> (Web IDE)</li>
<li><a href="http://ot.substance.io/demo/">Collaborative CodeMirror demo</a> (CodeMirror + operational transforms)</li>
<li><a href="http://www.communitycodecamp.com/">Community Code Camp</a> (code snippet sharing)</li>
<li><a href="http://www.compilejava.net/">compilejava.net</a> (online Java sandbox)</li>
<li><a href="http://www.ckwnc.com/">CKWNC</a> (UML editor)</li>
<li><a href="http://www.crossui.com/">CrossUI</a> (cross-platform UI builder)</li>
<li><a href="http://rsnous.com/cruncher/">Cruncher</a> (notepad with calculation features)</li>
<li><a href="http://www.crudzilla.com/">Crudzilla</a> (self-hosted web IDE)</li>
<li><a href="http://cssdeck.com/">CSSDeck</a> (CSS showcase)</li>
<li><a href="http://ireneros.com/deck/deck.js-codemirror/introduction/#textarea-code">Deck.js integration</a> (slides with editors)</li>
<li><a href="http://www.dbninja.com">DbNinja</a> (MySQL access interface)</li>
<li><a href="https://chat.echoplex.us/">Echoplexus</a> (chat and collaborative coding)</li>
<li><a href="http://www.ecsspert.com/">eCSSpert</a> (CSS demos and experiments)</li>
<li><a href="http://elm-lang.org/Examples.elm">Elm language examples</a></li>
<li><a href="http://eloquentjavascript.net/chapter1.html">Eloquent JavaScript</a> (book)</li>
<li><a href="http://emmet.io">Emmet</a> (fast XML editing)</li>
<li><a href="https://github.com/espruino/EspruinoWebIDE">Espruino Web IDE</a> (Chrome App for writing code on Espruino devices)</li>
<li><a href="http://www.fastfig.com/">Fastfig</a> (online computation/math tool)</li>
<li><a href="https://metacpan.org/module/Farabi">Farabi</a> (modern Perl IDE)</li>
<li><a href="http://blog.pamelafox.org/2012/02/interactive-html5-slides-with-fathomjs.html">FathomJS integration</a> (slides with editors, again)</li>
<li><a href="https://phantomus.com/">Phantomus</a> (blogging platform)</li>
<li><a href="http://fiddlesalad.com/">Fiddle Salad</a> (web development environment)</li>
<li><a href="https://github.com/simogeo/Filemanager">Filemanager</a></li>
<li><a href="https://hacks.mozilla.org/2013/11/firefox-developer-tools-episode-27-edit-as-html-codemirror-more/">Firefox Developer Tools</a></li>
<li><a href="http://www.firepad.io">Firepad</a> (collaborative text editor)</li>
<li><a href="https://code.google.com/p/gerrit/">Gerrit</a>'s diff view</li>
<li><a href="https://github.com/maks/git-crx">Git Crx</a> (Chrome App for browsing local git repos)</li>
<li><a href="http://tour.golang.org">Go language tour</a></li>
<li><a href="https://github.com/github/android">GitHub's Android app</a></li>
<li><a href="https://script.google.com/">Google Apps Script</a></li>
<li><a href="http://web.uvic.ca/~siefkenj/graphit/graphit.html">Graphit</a> (function graphing)</li>
<li><a href="http://www.handcraft.com/">Handcraft</a> (HTML prototyping)</li>
<li><a href="http://hawkee.com/">Hawkee</a></li>
<li><a href="http://try.haxe.org">Haxe</a> (Haxe Playground) </li>
<li><a href="http://haxpad.com/">HaxPad</a> (editor for Win RT)</li>
<li><a href="http://megafonweblab.github.com/histone-javascript/">Histone template engine playground</a></li>
<li><a href="http://icecoder.net">ICEcoder</a> (web IDE)</li>
<li><a href="http://ipython.org/">IPython</a> (interactive computing shell)</li>
<li><a href="http://i-mos.org/imos/">i-MOS</a> (modeling and simulation platform)</li>
<li><a href="http://www.janvas.com/">Janvas</a> (vector graphics editor)</li>
<li><a href="http://extensions.joomla.org/extensions/edition/editors/8723">Joomla plugin</a></li>
<li><a href="http://jqfundamentals.com/">jQuery fundamentals</a> (interactive tutorial)</li>
<li><a href="http://jsbin.com">jsbin.com</a> (JS playground)</li>
<li><a href="http://tool.jser.com/preprocessor">JSER preprocessor</a></li>
<li><a href="https://github.com/kucherenko/jscpd">jscpd</a> (code duplication detector)</li>
<li><a href="http://jsfiddle.com">jsfiddle.com</a> (another JS playground)</li>
<li><a href="http://www.jshint.com/">JSHint</a> (JS linter)</li>
<li><a href="http://jumpseller.com/">Jumpseller</a> (online store builder)</li>
<li><a href="http://kl1p.com/cmtest/1">kl1p</a> (paste service)</li>
<li><a href="http://kodtest.com/">Kodtest</a> (HTML/JS/CSS playground)</li>
<li><a href="https://laborate.io/">Laborate</a> (collaborative coding)</li>
<li><a href="http://lighttable.com/">Light Table</a> (experimental IDE)</li>
<li><a href="http://liveweave.com/">Liveweave</a> (HTML/CSS/JS scratchpad)</li>
<li><a href="http://marklighteditor.com/">Marklight editor</a> (lightweight markup editor)</li>
<li><a href="http://www.mergely.com/">Mergely</a> (interactive diffing)</li>
<li><a href="http://www.iunbug.com/mihtool">MIHTool</a> (iOS web-app debugging tool)</li>
<li><a href="http://mongo-mapreduce-webbrowser.opensagres.cloudbees.net/">Mongo MapReduce WebBrowser</a></li>
<li><a href="http://montagestudio.com/">Montage Studio</a> (web app creator suite)</li>
<li><a href="http://mvcplayground.apphb.com/">MVC Playground</a></li>
<li><a href="https://www.my2ndgeneration.com/">My2ndGeneration</a> (social coding)</li>
<li><a href="http://www.navigatecms.com">Navigate CMS</a></li>
<li><a href="https://github.com/soliton4/nodeMirror">nodeMirror</a> (IDE project)</li>
<li><a href="https://notex.ch">NoTex</a> (rST authoring)</li>
<li><a href="http://oakoutliner.com">Oak</a> (online outliner)</li>
<li><a href="http://clrhome.org/asm/">ORG</a> (z80 assembly IDE)</li>
<li><a href="https://github.com/mamacdon/orion-codemirror">Orion-CodeMirror integration</a> (running CodeMirror modes in Orion)</li>
<li><a href="http://paperjs.org/">Paper.js</a> (graphics scripting)</li>
<li><a href="http://prinbit.com/">PrinBit</a> (collaborative coding tool)</li>
<li><a href="http://prose.io/">Prose.io</a> (github content editor)</li>
<li><a href="https://pypi.python.org/pypi/PubliForge/">PubliForge</a> (online publishing system)</li>
<li><a href="http://www.puzzlescript.net/">Puzzlescript</a> (puzzle game engine)</li>
<li><a href="http://ql.io/">ql.io</a> (http API query helper)</li>
<li><a href="http://qyapp.com">QiYun web app platform</a></li>
<li><a href="http://ariya.ofilabs.com/2011/09/hybrid-webnative-desktop-codemirror.html">Qt+Webkit integration</a> (building a desktop CodeMirror app)</li>
<li><a href="http://www.quivive-file-manager.com">Quivive File Manager</a></li>
<li><a href="http://rascalmicro.com/docs/basic-tutorial-getting-started.html">Rascal</a> (tiny computer)</li>
<li><a href="https://www.realtime.io/">RealTime.io</a> (Internet-of-Things infrastructure)</li>
<li><a href="https://cloud.sagemath.com/">SageMathCloud</a> (interactive mathematical software environment)</li>
<li><a href="https://chrome.google.com/webstore/detail/servephp/mnpikomdchjhkhbhmbboehfdjkobbfpo">ServePHP</a> (PHP code testing in Chrome dev tools)</li>
<li><a href="https://www.shadertoy.com/">Shadertoy</a> (shader sharing)</li>
<li><a href="http://www.sketchpatch.net/labs/livecodelabIntro.html">sketchPatch Livecodelab</a></li>
<li><a href="http://www.skulpt.org/">Skulpt</a> (in-browser Python environment)</li>
<li><a href="http://snaptomato.appspot.com/editor.html">Snap Tomato</a> (HTML editing/testing page)</li>
<li><a href="http://snippets.pro/">Snippets.pro</a> (code snippet sharing)</li>
<li><a href="http://www.solidshops.com/">SolidShops</a> (hosted e-commerce platform)</li>
<li><a href="http://sqlfiddle.com">SQLFiddle</a> (SQL playground)</li>
<li><a href="http://www.subte.org/page/programar-ta-te-ti-online/">SubTe</a> (AI bot programming environment)</li>
<li><a href="http://xuanji.appspot.com/isicp/">Structure and Interpretation of Computer Programs</a>, Interactive Version</li>
<li><a href="http://syframework.alwaysdata.net">SyBox</a> (PHP playground)</li>
<li><a href="http://www.tagspaces.org/">TagSpaces</a> (personal data manager)</li>
<li><a href="https://thefiletree.com">The File Tree</a> (collab editor)</li>
<li><a href="http://www.mapbox.com/tilemill/">TileMill</a> (map design tool)</li>
<li><a href="http://doc.tiki.org/Syntax+Highlighter">Tiki</a> (wiki CMS groupware)</li>
<li><a href="http://www.toolsverse.com/products/data-explorer/">Toolsverse Data Explorer</a> (database management)</li>
<li><a href="http://enjalot.com/tributary/2636296/sinwaves.js">Tributary</a> (augmented editing)</li>
<li><a href="http://blog.englard.net/post/39608000629/codeintumblr">Tumblr code highlighting shim</a></li>
<li><a href="http://turbopy.com/">TurboPY</a> (web publishing framework)</li>
<li><a href="http://uicod.com/">uiCod</a> (animation demo gallery and sharing)</li>
<li><a href="http://cruise.eecs.uottawa.ca/umpleonline/">UmpleOnline</a> (model-oriented programming tool)</li>
<li><a href="https://upsource.jetbrains.com/#idea/view/923f30395f2603cd9f42a32bcafd13b6c28de0ff/plugins/groovy/src/org/jetbrains/plugins/groovy/intentions/style/ReplaceAbstractClassInstanceByMapIntention.java">Upsource</a> (code viewer)</li>
<li><a href="https://github.com/mgaitan/waliki">Waliki</a> (wiki engine)</li>
<li><a href="http://wamer.net/">Wamer</a> (web application builder)</li>
<li><a href="https://github.com/brettz9/webappfind">webappfind</a> (windows file bindings for webapps)</li>
<li><a href="http://www.webglacademy.com/">WebGL academy</a> (learning WebGL)</li>
<li><a href="http://webglplayground.net/">WebGL playground</a></li>
<li><a href="https://www.webkit.org/blog/2518/state-of-web-inspector/#source-code">WebKit Web inspector</a></li>
<li><a href="http://www.wescheme.org/">WeScheme</a> (learning tool)</li>
<li><a href="https://github.com/b3log/wide">Wide</a> (golang web IDE)</li>
<li><a href="http://wordpress.org/extend/plugins/codemirror-for-codeeditor/">WordPress plugin</a></li>
<li><a href="https://www.writelatex.com">writeLaTeX</a> (Collaborative LaTeX Editor)</li>
<li><a href="http://www.xosystem.org/home/applications_websites/xosystem_website/xoside_EN.php">XOSide</a> (online editor)</li>
<li><a href="http://videlibri.sourceforge.net/cgi-bin/xidelcgi">XQuery tester</a></li>
<li><a href="http://q42jaap.github.io/xsd2codemirror/">xsd2codemirror</a> (convert XSD to CM XML completion info)</li>
</ul>
</article>

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<!doctype html>
<title>CodeMirror: Reporting Bugs</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="docs.css">
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="logo.png"></a>
<ul>
<li><a href="../index.html">Home</a>
<li><a href="manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a class=active href="#">Reporting bugs</a>
</ul>
</div>
<article>
<h2>Reporting bugs effectively</h2>
<div class="left">
<p>So you found a problem in CodeMirror. By all means, report it! Bug
reports from users are the main drive behind improvements to
CodeMirror. But first, please read over these points:</p>
<ol>
<li>CodeMirror is maintained by volunteers. They don't owe you
anything, so be polite. Reports with an indignant or belligerent
tone tend to be moved to the bottom of the pile.</li>
<li>Include information about <strong>the browser in which the
problem occurred</strong>. Even if you tested several browsers, and
the problem occurred in all of them, mention this fact in the bug
report. Also include browser version numbers and the operating
system that you're on.</li>
<li>Mention which release of CodeMirror you're using. Preferably,
try also with the current development snapshot, to ensure the
problem has not already been fixed.</li>
<li>Mention very precisely what went wrong. "X is broken" is not a
good bug report. What did you expect to happen? What happened
instead? Describe the exact steps a maintainer has to take to make
the problem occur. We can not fix something that we can not
observe.</li>
<li>If the problem can not be reproduced in any of the demos
included in the CodeMirror distribution, please provide an HTML
document that demonstrates the problem. The best way to do this is
to go to <a href="http://jsbin.com/ihunin/1/edit">jsbin.com</a>, enter
it there, press save, and include the resulting link in your bug
report.</li>
</ol>
</div>
</article>

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<!doctype html>
<title>CodeMirror: Version 2.2 upgrade guide</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="docs.css">
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="logo.png"></a>
<ul>
<li><a href="../index.html">Home</a>
<li><a href="manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a class=active href="#">2.2 upgrade guide</a>
</ul>
</div>
<article>
<h2>Upgrading to v2.2</h2>
<p>There are a few things in the 2.2 release that require some care
when upgrading.</p>
<h3>No more default.css</h3>
<p>The default theme is now included
in <a href="../lib/codemirror.css"><code>codemirror.css</code></a>, so
you do not have to included it separately anymore. (It was tiny, so
even if you're not using it, the extra data overhead is negligible.)
<h3>Different key customization</h3>
<p>CodeMirror has moved to a system
where <a href="manual.html#option_keyMap">keymaps</a> are used to
bind behavior to keys. This means <a href="../demo/emacs.html">custom
bindings</a> are now possible.</p>
<p>Three options that influenced key
behavior, <code>tabMode</code>, <code>enterMode</code>,
and <code>smartHome</code>, are no longer supported. Instead, you can
provide custom bindings to influence the way these keys act. This is
done through the
new <a href="manual.html#option_extraKeys"><code>extraKeys</code></a>
option, which can hold an object mapping key names to functionality. A
simple example would be:</p>
<pre> extraKeys: {
"Ctrl-S": function(instance) { saveText(instance.getValue()); },
"Ctrl-/": "undo"
}</pre>
<p>Keys can be mapped either to functions, which will be given the
editor instance as argument, or to strings, which are mapped through
functions through the <code>CodeMirror.commands</code> table, which
contains all the built-in editing commands, and can be inspected and
extended by external code.</p>
<p>By default, the <code>Home</code> key is bound to
the <code>"goLineStartSmart"</code> command, which moves the cursor to
the first non-whitespace character on the line. You can set do this to
make it always go to the very start instead:</p>
<pre> extraKeys: {"Home": "goLineStart"}</pre>
<p>Similarly, <code>Enter</code> is bound
to <code>"newlineAndIndent"</code> by default. You can bind it to
something else to get different behavior. To disable special handling
completely and only get a newline character inserted, you can bind it
to <code>false</code>:</p>
<pre> extraKeys: {"Enter": false}</pre>
<p>The same works for <code>Tab</code>. If you don't want CodeMirror
to handle it, bind it to <code>false</code>. The default behaviour is
to indent the current line more (<code>"indentMore"</code> command),
and indent it less when shift is held (<code>"indentLess"</code>).
There are also <code>"indentAuto"</code> (smart indent)
and <code>"insertTab"</code> commands provided for alternate
behaviors. Or you can write your own handler function to do something
different altogether.</p>
<h3>Tabs</h3>
<p>Handling of tabs changed completely. The display width of tabs can
now be set with the <code>tabSize</code> option, and tabs can
be <a href="../demo/visibletabs.html">styled</a> by setting CSS rules
for the <code>cm-tab</code> class.</p>
<p>The default width for tabs is now 4, as opposed to the 8 that is
hard-wired into browsers. If you are relying on 8-space tabs, make
sure you explicitly set <code>tabSize: 8</code> in your options.</p>
</article>

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<!doctype html>
<title>CodeMirror: Version 3 upgrade guide</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="docs.css">
<script src="../lib/codemirror.js"></script>
<link rel="stylesheet" href="../lib/codemirror.css">
<script src="../addon/runmode/runmode.js"></script>
<script src="../addon/runmode/colorize.js"></script>
<script src="../mode/javascript/javascript.js"></script>
<script src="../mode/xml/xml.js"></script>
<script src="../mode/css/css.js"></script>
<script src="../mode/htmlmixed/htmlmixed.js"></script>
<script src="activebookmark.js"></script>
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="logo.png"></a>
<ul>
<li><a href="../index.html">Home</a>
<li><a href="manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a class=active href="#upgrade">Upgrade guide</a>
<li><a href="#dom">DOM structure</a></li>
<li><a href="#gutters">Gutter model</a></li>
<li><a href="#events">Event handling</a></li>
<li><a href="#marktext">markText method arguments</a></li>
<li><a href="#folding">Line folding</a></li>
<li><a href="#lineclass">Line CSS classes</a></li>
<li><a href="#positions">Position properties</a></li>
<li><a href="#matchbrackets">Bracket matching</a></li>
<li><a href="#modes">Mode management</a></li>
<li><a href="#new">New features</a></li>
</ul>
</div>
<article>
<h2 id=upgrade>Upgrading to version 3</h2>
<p>Version 3 does not depart too much from 2.x API, and sites that use
CodeMirror in a very simple way might be able to upgrade without
trouble. But it does introduce a number of incompatibilities. Please
at least skim this text before upgrading.</p>
<p>Note that <strong>version 3 drops full support for Internet
Explorer 7</strong>. The editor will mostly work on that browser, but
it'll be significantly glitchy.</p>
<section id=dom>
<h2>DOM structure</h2>
<p>This one is the most likely to cause problems. The internal
structure of the editor has changed quite a lot, mostly to implement a
new scrolling model.</p>
<p>Editor height is now set on the outer wrapper element (CSS
class <code>CodeMirror</code>), not on the scroller element
(<code>CodeMirror-scroll</code>).</p>
<p>Other nodes were moved, dropped, and added. If you have any code
that makes assumptions about the internal DOM structure of the editor,
you'll have to re-test it and probably update it to work with v3.</p>
<p>See the <a href="manual.html#styling">styling section</a> of the
manual for more information.</p>
</section>
<section id=gutters>
<h2>Gutter model</h2>
<p>In CodeMirror 2.x, there was a single gutter, and line markers
created with <code>setMarker</code> would have to somehow coexist with
the line numbers (if present). Version 3 allows you to specify an
array of gutters, <a href="manual.html#option_gutters">by class
name</a>,
use <a href="manual.html#setGutterMarker"><code>setGutterMarker</code></a>
to add or remove markers in individual gutters, and clear whole
gutters
with <a href="manual.html#clearGutter"><code>clearGutter</code></a>.
Gutter markers are now specified as DOM nodes, rather than HTML
snippets.</p>
<p>The gutters no longer horizontally scrolls along with the content.
The <code>fixedGutter</code> option was removed (since it is now the
only behavior).</p>
<pre data-lang="text/html">
&lt;style>
/* Define a gutter style */
.note-gutter { width: 3em; background: cyan; }
&lt;/style>
&lt;script>
// Create an instance with two gutters -- line numbers and notes
var cm = new CodeMirror(document.body, {
gutters: ["note-gutter", "CodeMirror-linenumbers"],
lineNumbers: true
});
// Add a note to line 0
cm.setGutterMarker(0, "note-gutter", document.createTextNode("hi"));
&lt;/script>
</pre>
</section>
<section id=events>
<h2>Event handling</h2>
<p>Most of the <code>onXYZ</code> options have been removed. The same
effect is now obtained by calling
the <a href="manual.html#on"><code>on</code></a> method with a string
identifying the event type. Multiple handlers can now be registered
(and individually unregistered) for an event, and objects such as line
handlers now also expose events. See <a href="manual.html#events">the
full list here</a>.</p>
<p>(The <code>onKeyEvent</code> and <code>onDragEvent</code> options,
which act more as hooks than as event handlers, are still there in
their old form.)</p>
<pre data-lang="javascript">
cm.on("change", function(cm, change) {
console.log("something changed! (" + change.origin + ")");
});
</pre>
</section>
<section id=marktext>
<h2>markText method arguments</h2>
<p>The <a href="manual.html#markText"><code>markText</code></a> method
(which has gained some interesting new features, such as creating
atomic and read-only spans, or replacing spans with widgets) no longer
takes the CSS class name as a separate argument, but makes it an
optional field in the options object instead.</p>
<pre data-lang="javascript">
// Style first ten lines, and forbid the cursor from entering them
cm.markText({line: 0, ch: 0}, {line: 10, ch: 0}, {
className: "magic-text",
inclusiveLeft: true,
atomic: true
});
</pre>
</section>
<section id=folding>
<h2>Line folding</h2>
<p>The interface for hiding lines has been
removed. <a href="manual.html#markText"><code>markText</code></a> can
now be used to do the same in a more flexible and powerful way.</p>
<p>The <a href="../demo/folding.html">folding script</a> has been
updated to use the new interface, and should now be more robust.</p>
<pre data-lang="javascript">
// Fold a range, replacing it with the text "??"
var range = cm.markText({line: 4, ch: 2}, {line: 8, ch: 1}, {
replacedWith: document.createTextNode("??"),
// Auto-unfold when cursor moves into the range
clearOnEnter: true
});
// Get notified when auto-unfolding
CodeMirror.on(range, "clear", function() {
console.log("boom");
});
</pre>
</section>
<section id=lineclass>
<h2>Line CSS classes</h2>
<p>The <code>setLineClass</code> method has been replaced
by <a href="manual.html#addLineClass"><code>addLineClass</code></a>
and <a href="manual.html#removeLineClass"><code>removeLineClass</code></a>,
which allow more modular control over the classes attached to a line.</p>
<pre data-lang="javascript">
var marked = cm.addLineClass(10, "background", "highlighted-line");
setTimeout(function() {
cm.removeLineClass(marked, "background", "highlighted-line");
});
</pre>
</section>
<section id=positions>
<h2>Position properties</h2>
<p>All methods that take or return objects that represent screen
positions now use <code>{left, top, bottom, right}</code> properties
(not always all of them) instead of the <code>{x, y, yBot}</code> used
by some methods in v2.x.</p>
<p>Affected methods
are <a href="manual.html#cursorCoords"><code>cursorCoords</code></a>, <a href="manual.html#charCoords"><code>charCoords</code></a>, <a href="manual.html#coordsChar"><code>coordsChar</code></a>,
and <a href="manual.html#getScrollInfo"><code>getScrollInfo</code></a>.</p>
</section>
<section id=matchbrackets>
<h2>Bracket matching no longer in core</h2>
<p>The <a href="manual.html#addon_matchbrackets"><code>matchBrackets</code></a>
option is no longer defined in the core editor.
Load <code>addon/edit/matchbrackets.js</code> to enable it.</p>
</section>
<section id=modes>
<h2>Mode management</h2>
<p>The <code>CodeMirror.listModes</code>
and <code>CodeMirror.listMIMEs</code> functions, used for listing
defined modes, are gone. You are now encouraged to simply
inspect <code>CodeMirror.modes</code> (mapping mode names to mode
constructors) and <code>CodeMirror.mimeModes</code> (mapping MIME
strings to mode specs).</p>
</section>
<section id=new>
<h2>New features</h2>
<p>Some more reasons to upgrade to version 3.</p>
<ul>
<li>Bi-directional text support. CodeMirror will now mostly do the
right thing when editing Arabic or Hebrew text.</li>
<li>Arbitrary line heights. Using fonts with different heights
inside the editor (whether off by one pixel or fifty) is now
supported and handled gracefully.</li>
<li>In-line widgets. See <a href="../demo/widget.html">the demo</a>
and <a href="manual.html#addLineWidget">the docs</a>.</li>
<li>Defining custom options
with <a href="manual.html#defineOption"><code>CodeMirror.defineOption</code></a>.</li>
</ul>
</section>
</article>
<script>setTimeout(function(){CodeMirror.colorize();}, 20);</script>

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<!doctype html>
<title>CodeMirror: Version 4 upgrade guide</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="docs.css">
<script src="activebookmark.js"></script>
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="logo.png"></a>
<ul>
<li><a href="../index.html">Home</a>
<li><a href="manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a class=active href="#upgrade">Upgrade guide</a>
<li><a href="#multisel">Multiple selections</a>
<li><a href="#beforeSelectionChange">The beforeSelectionChange event</a>
<li><a href="#replaceSelection">replaceSelection and collapsing</a>
<li><a href="#changeEvent">change event data</a>
<li><a href="#showIfHidden">showIfHidden option to line widgets</a>
<li><a href="#module">Module loaders</a>
<li><a href="#shareddata">Mutating shared data structures</a></li>
<li><a href="#deprecated">Deprecated interfaces dropped</a>
</ul>
</div>
<article>
<h2 id=upgrade>Upgrading to version 4</h2>
<p>CodeMirror 4's interface is <em>very</em> close version 3, but it
does fix a few awkward details in a backwards-incompatible ways. At
least skim the text below before upgrading.</p>
<section id=multisel><h2>Multiple selections</h2>
<p>The main new feature in version 4 is multiple selections. The
single-selection variants of methods are still there, but now
typically act only on the <em>primary</em> selection (usually the last
one added).</p>
<p>The exception to this
is <a href="manual.html#getSelection"><strong><code>getSelection</code></strong></a>,
which will now return the content of <em>all</em> selections
(separated by newlines, or whatever <code>lineSep</code> parameter you passed
it).</p>
</section>
<section id=beforeSelectionChange><h2>The beforeSelectionChange event</h2>
<p>This event still exists, but the object it is passed has
a <a href="manual.html#event_beforeSelectionChange">completely new
interface</a>, because such changes now concern multiple
selections.</p>
</section>
<section id=replaceSelection><h2>replaceSelection's collapsing behavior</h2>
<p>By
default, <a href="manual.html#replaceSelection"><code>replaceSelection</code></a>
would leave the newly inserted text selected. This is only rarely what
you want, and also (slightly) more expensive in the new model, so the
default was changed to <code>"end"</code>, meaning the old behavior
must be explicitly specified by passing a second argument
of <code>"around"</code>.</p>
</section>
<section id=changeEvent><h2>change event data</h2>
<p>Rather than forcing client code to follow <code>next</code>
pointers from one change object to the next, the library will now
simply fire
multiple <a href="manual.html#event_change"><code>"change"</code></a>
events. Existing code will probably continue to work unmodified.</p>
</section>
<section id=showIfHidden><h2>showIfHidden option to line widgets</h2>
<p>This option, which conceptually caused line widgets to be visible
even if their line was hidden, was never really well-defined, and was
buggy from the start. It would be a rather expensive feature, both in
code complexity and run-time performance, to implement properly. It
has been dropped entirely in 4.0.</p>
</section>
<section id=module><h2>Module loaders</h2>
<p>All modules in the CodeMirror distribution are now wrapped in a
shim function to make them compatible with both AMD
(<a href="http://requirejs.org">requirejs</a>) and CommonJS (as used
by <a href="http://nodejs.org/">node</a>
and <a href="http://browserify.org/">browserify</a>) module loaders.
When neither of these is present, they fall back to simply using the
global <code>CodeMirror</code> variable.</p>
<p>If you have a module loader present in your environment, CodeMirror
will attempt to use it, and you might need to change the way you load
CodeMirror modules.</p>
</section>
<section id=shareddata><h2>Mutating shared data structures</h2>
<p>Data structures produced by the library should not be mutated
unless explicitly allowed, in general. This is slightly more strict in
4.0 than it was in earlier versions, which copied the position objects
returned by <a href="manual.html#getCursor"><code>getCursor</code></a>
for nebulous, historic reasons. In 4.0, mutating these
objects <em>will</em> corrupt your editor's selection.</p>
</section>
<section id=deprecated><h2>Deprecated interfaces dropped</h2>
<p>A few properties and methods that have been deprecated for a while
are now gone. Most notably, the <code>onKeyEvent</code>
and <code>onDragEvent</code> options (use the
corresponding <a href="manual.html#event_dom">events</a> instead).</p>
<p>Two silly methods, which were mostly there to stay close to the 0.x
API, <code>setLine</code> and <code>removeLine</code> are now gone.
Use the more
flexible <a href="manual.html#replaceRange"><code>replaceRange</code></a>
method instead.</p>
<p>The long names for folding and completing functions
(<code>CodeMirror.braceRangeFinder</code>, <code>CodeMirror.javascriptHint</code>,
etc) are also gone
(use <code>CodeMirror.fold.brace</code>, <code>CodeMirror.hint.javascript</code>).</p>
<p>The <code>className</code> property in the return value
of <a href="manual.html#getTokenAt"><code>getTokenAt</code></a>, which
has been superseded by the <code>type</code> property, is also no
longer present.</p>
</section>
</article>

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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
function wordRegexp(words) {
return new RegExp('^((' + words.join(')|(') + '))\\b', 'i');
};
var builtinArray = [
'a_correlate', 'abs', 'acos', 'adapt_hist_equal', 'alog',
'alog2', 'alog10', 'amoeba', 'annotate', 'app_user_dir',
'app_user_dir_query', 'arg_present', 'array_equal', 'array_indices',
'arrow', 'ascii_template', 'asin', 'assoc', 'atan',
'axis', 'axis', 'bandpass_filter', 'bandreject_filter', 'barplot',
'bar_plot', 'beseli', 'beselj', 'beselk', 'besely',
'beta', 'biginteger', 'bilinear', 'bin_date', 'binary_template',
'bindgen', 'binomial', 'bit_ffs', 'bit_population', 'blas_axpy',
'blk_con', 'boolarr', 'boolean', 'boxplot', 'box_cursor',
'breakpoint', 'broyden', 'bubbleplot', 'butterworth', 'bytarr',
'byte', 'byteorder', 'bytscl', 'c_correlate', 'calendar',
'caldat', 'call_external', 'call_function', 'call_method',
'call_procedure', 'canny', 'catch', 'cd', 'cdf', 'ceil',
'chebyshev', 'check_math', 'chisqr_cvf', 'chisqr_pdf', 'choldc',
'cholsol', 'cindgen', 'cir_3pnt', 'clipboard', 'close',
'clust_wts', 'cluster', 'cluster_tree', 'cmyk_convert', 'code_coverage',
'color_convert', 'color_exchange', 'color_quan', 'color_range_map',
'colorbar', 'colorize_sample', 'colormap_applicable',
'colormap_gradient', 'colormap_rotation', 'colortable',
'comfit', 'command_line_args', 'common', 'compile_opt', 'complex',
'complexarr', 'complexround', 'compute_mesh_normals', 'cond', 'congrid',
'conj', 'constrained_min', 'contour', 'contour', 'convert_coord',
'convol', 'convol_fft', 'coord2to3', 'copy_lun', 'correlate',
'cos', 'cosh', 'cpu', 'cramer', 'createboxplotdata',
'create_cursor', 'create_struct', 'create_view', 'crossp', 'crvlength',
'ct_luminance', 'cti_test', 'cursor', 'curvefit', 'cv_coord',
'cvttobm', 'cw_animate', 'cw_animate_getp', 'cw_animate_load',
'cw_animate_run', 'cw_arcball', 'cw_bgroup', 'cw_clr_index',
'cw_colorsel', 'cw_defroi', 'cw_field', 'cw_filesel', 'cw_form',
'cw_fslider', 'cw_light_editor', 'cw_light_editor_get',
'cw_light_editor_set', 'cw_orient', 'cw_palette_editor',
'cw_palette_editor_get', 'cw_palette_editor_set', 'cw_pdmenu',
'cw_rgbslider', 'cw_tmpl', 'cw_zoom', 'db_exists',
'dblarr', 'dcindgen', 'dcomplex', 'dcomplexarr', 'define_key',
'define_msgblk', 'define_msgblk_from_file', 'defroi', 'defsysv',
'delvar', 'dendro_plot', 'dendrogram', 'deriv', 'derivsig',
'determ', 'device', 'dfpmin', 'diag_matrix', 'dialog_dbconnect',
'dialog_message', 'dialog_pickfile', 'dialog_printersetup',
'dialog_printjob', 'dialog_read_image',
'dialog_write_image', 'dictionary', 'digital_filter', 'dilate', 'dindgen',
'dissolve', 'dist', 'distance_measure', 'dlm_load', 'dlm_register',
'doc_library', 'double', 'draw_roi', 'edge_dog', 'efont',
'eigenql', 'eigenvec', 'ellipse', 'elmhes', 'emboss',
'empty', 'enable_sysrtn', 'eof', 'eos', 'erase',
'erf', 'erfc', 'erfcx', 'erode', 'errorplot',
'errplot', 'estimator_filter', 'execute', 'exit', 'exp',
'expand', 'expand_path', 'expint', 'extrac', 'extract_slice',
'f_cvf', 'f_pdf', 'factorial', 'fft', 'file_basename',
'file_chmod', 'file_copy', 'file_delete', 'file_dirname',
'file_expand_path', 'file_gunzip', 'file_gzip', 'file_info',
'file_lines', 'file_link', 'file_mkdir', 'file_move',
'file_poll_input', 'file_readlink', 'file_same',
'file_search', 'file_tar', 'file_test', 'file_untar', 'file_unzip',
'file_which', 'file_zip', 'filepath', 'findgen', 'finite',
'fix', 'flick', 'float', 'floor', 'flow3',
'fltarr', 'flush', 'format_axis_values', 'forward_function', 'free_lun',
'fstat', 'fulstr', 'funct', 'function', 'fv_test',
'fx_root', 'fz_roots', 'gamma', 'gamma_ct', 'gauss_cvf',
'gauss_pdf', 'gauss_smooth', 'gauss2dfit', 'gaussfit',
'gaussian_function', 'gaussint', 'get_drive_list', 'get_dxf_objects',
'get_kbrd', 'get_login_info',
'get_lun', 'get_screen_size', 'getenv', 'getwindows', 'greg2jul',
'grib', 'grid_input', 'grid_tps', 'grid3', 'griddata',
'gs_iter', 'h_eq_ct', 'h_eq_int', 'hanning', 'hash',
'hdf', 'hdf5', 'heap_free', 'heap_gc', 'heap_nosave',
'heap_refcount', 'heap_save', 'help', 'hilbert', 'hist_2d',
'hist_equal', 'histogram', 'hls', 'hough', 'hqr',
'hsv', 'i18n_multibytetoutf8',
'i18n_multibytetowidechar', 'i18n_utf8tomultibyte',
'i18n_widechartomultibyte',
'ibeta', 'icontour', 'iconvertcoord', 'idelete', 'identity',
'idl_base64', 'idl_container', 'idl_validname',
'idlexbr_assistant', 'idlitsys_createtool',
'idlunit', 'iellipse', 'igamma', 'igetcurrent', 'igetdata',
'igetid', 'igetproperty', 'iimage', 'image', 'image_cont',
'image_statistics', 'image_threshold', 'imaginary', 'imap', 'indgen',
'int_2d', 'int_3d', 'int_tabulated', 'intarr', 'interpol',
'interpolate', 'interval_volume', 'invert', 'ioctl', 'iopen',
'ir_filter', 'iplot', 'ipolygon', 'ipolyline', 'iputdata',
'iregister', 'ireset', 'iresolve', 'irotate', 'isa',
'isave', 'iscale', 'isetcurrent', 'isetproperty', 'ishft',
'isocontour', 'isosurface', 'isurface', 'itext', 'itranslate',
'ivector', 'ivolume', 'izoom', 'journal', 'json_parse',
'json_serialize', 'jul2greg', 'julday', 'keyword_set', 'krig2d',
'kurtosis', 'kw_test', 'l64indgen', 'la_choldc', 'la_cholmprove',
'la_cholsol', 'la_determ', 'la_eigenproblem', 'la_eigenql', 'la_eigenvec',
'la_elmhes', 'la_gm_linear_model', 'la_hqr', 'la_invert',
'la_least_square_equality', 'la_least_squares', 'la_linear_equation',
'la_ludc', 'la_lumprove', 'la_lusol',
'la_svd', 'la_tridc', 'la_trimprove', 'la_triql', 'la_trired',
'la_trisol', 'label_date', 'label_region', 'ladfit', 'laguerre',
'lambda', 'lambdap', 'lambertw', 'laplacian', 'least_squares_filter',
'leefilt', 'legend', 'legendre', 'linbcg', 'lindgen',
'linfit', 'linkimage', 'list', 'll_arc_distance', 'lmfit',
'lmgr', 'lngamma', 'lnp_test', 'loadct', 'locale_get',
'logical_and', 'logical_or', 'logical_true', 'lon64arr', 'lonarr',
'long', 'long64', 'lsode', 'lu_complex', 'ludc',
'lumprove', 'lusol', 'm_correlate', 'machar', 'make_array',
'make_dll', 'make_rt', 'map', 'mapcontinents', 'mapgrid',
'map_2points', 'map_continents', 'map_grid', 'map_image', 'map_patch',
'map_proj_forward', 'map_proj_image', 'map_proj_info',
'map_proj_init', 'map_proj_inverse',
'map_set', 'matrix_multiply', 'matrix_power', 'max', 'md_test',
'mean', 'meanabsdev', 'mean_filter', 'median', 'memory',
'mesh_clip', 'mesh_decimate', 'mesh_issolid',
'mesh_merge', 'mesh_numtriangles',
'mesh_obj', 'mesh_smooth', 'mesh_surfacearea',
'mesh_validate', 'mesh_volume',
'message', 'min', 'min_curve_surf', 'mk_html_help', 'modifyct',
'moment', 'morph_close', 'morph_distance',
'morph_gradient', 'morph_hitormiss',
'morph_open', 'morph_thin', 'morph_tophat', 'multi', 'n_elements',
'n_params', 'n_tags', 'ncdf', 'newton', 'noise_hurl',
'noise_pick', 'noise_scatter', 'noise_slur', 'norm', 'obj_class',
'obj_destroy', 'obj_hasmethod', 'obj_isa', 'obj_new', 'obj_valid',
'objarr', 'on_error', 'on_ioerror', 'online_help', 'openr',
'openu', 'openw', 'oplot', 'oploterr', 'orderedhash',
'p_correlate', 'parse_url', 'particle_trace', 'path_cache', 'path_sep',
'pcomp', 'plot', 'plot3d', 'plot', 'plot_3dbox',
'plot_field', 'ploterr', 'plots', 'polar_contour', 'polar_surface',
'polyfill', 'polyshade', 'pnt_line', 'point_lun', 'polarplot',
'poly', 'poly_2d', 'poly_area', 'poly_fit', 'polyfillv',
'polygon', 'polyline', 'polywarp', 'popd', 'powell',
'pref_commit', 'pref_get', 'pref_set', 'prewitt', 'primes',
'print', 'printf', 'printd', 'pro', 'product',
'profile', 'profiler', 'profiles', 'project_vol', 'ps_show_fonts',
'psafm', 'pseudo', 'ptr_free', 'ptr_new', 'ptr_valid',
'ptrarr', 'pushd', 'qgrid3', 'qhull', 'qromb',
'qromo', 'qsimp', 'query_*', 'query_ascii', 'query_bmp',
'query_csv', 'query_dicom', 'query_gif', 'query_image', 'query_jpeg',
'query_jpeg2000', 'query_mrsid', 'query_pict', 'query_png', 'query_ppm',
'query_srf', 'query_tiff', 'query_video', 'query_wav', 'r_correlate',
'r_test', 'radon', 'randomn', 'randomu', 'ranks',
'rdpix', 'read', 'readf', 'read_ascii', 'read_binary',
'read_bmp', 'read_csv', 'read_dicom', 'read_gif', 'read_image',
'read_interfile', 'read_jpeg', 'read_jpeg2000', 'read_mrsid', 'read_pict',
'read_png', 'read_ppm', 'read_spr', 'read_srf', 'read_sylk',
'read_tiff', 'read_video', 'read_wav', 'read_wave', 'read_x11_bitmap',
'read_xwd', 'reads', 'readu', 'real_part', 'rebin',
'recall_commands', 'recon3', 'reduce_colors', 'reform', 'region_grow',
'register_cursor', 'regress', 'replicate',
'replicate_inplace', 'resolve_all',
'resolve_routine', 'restore', 'retall', 'return', 'reverse',
'rk4', 'roberts', 'rot', 'rotate', 'round',
'routine_filepath', 'routine_info', 'rs_test', 's_test', 'save',
'savgol', 'scale3', 'scale3d', 'scatterplot', 'scatterplot3d',
'scope_level', 'scope_traceback', 'scope_varfetch',
'scope_varname', 'search2d',
'search3d', 'sem_create', 'sem_delete', 'sem_lock', 'sem_release',
'set_plot', 'set_shading', 'setenv', 'sfit', 'shade_surf',
'shade_surf_irr', 'shade_volume', 'shift', 'shift_diff', 'shmdebug',
'shmmap', 'shmunmap', 'shmvar', 'show3', 'showfont',
'signum', 'simplex', 'sin', 'sindgen', 'sinh',
'size', 'skewness', 'skip_lun', 'slicer3', 'slide_image',
'smooth', 'sobel', 'socket', 'sort', 'spawn',
'sph_4pnt', 'sph_scat', 'spher_harm', 'spl_init', 'spl_interp',
'spline', 'spline_p', 'sprsab', 'sprsax', 'sprsin',
'sprstp', 'sqrt', 'standardize', 'stddev', 'stop',
'strarr', 'strcmp', 'strcompress', 'streamline', 'streamline',
'stregex', 'stretch', 'string', 'strjoin', 'strlen',
'strlowcase', 'strmatch', 'strmessage', 'strmid', 'strpos',
'strput', 'strsplit', 'strtrim', 'struct_assign', 'struct_hide',
'strupcase', 'surface', 'surface', 'surfr', 'svdc',
'svdfit', 'svsol', 'swap_endian', 'swap_endian_inplace', 'symbol',
'systime', 't_cvf', 't_pdf', 't3d', 'tag_names',
'tan', 'tanh', 'tek_color', 'temporary', 'terminal_size',
'tetra_clip', 'tetra_surface', 'tetra_volume', 'text', 'thin',
'thread', 'threed', 'tic', 'time_test2', 'timegen',
'timer', 'timestamp', 'timestamptovalues', 'tm_test', 'toc',
'total', 'trace', 'transpose', 'tri_surf', 'triangulate',
'trigrid', 'triql', 'trired', 'trisol', 'truncate_lun',
'ts_coef', 'ts_diff', 'ts_fcast', 'ts_smooth', 'tv',
'tvcrs', 'tvlct', 'tvrd', 'tvscl', 'typename',
'uindgen', 'uint', 'uintarr', 'ul64indgen', 'ulindgen',
'ulon64arr', 'ulonarr', 'ulong', 'ulong64', 'uniq',
'unsharp_mask', 'usersym', 'value_locate', 'variance', 'vector',
'vector_field', 'vel', 'velovect', 'vert_t3d', 'voigt',
'volume', 'voronoi', 'voxel_proj', 'wait', 'warp_tri',
'watershed', 'wdelete', 'wf_draw', 'where', 'widget_base',
'widget_button', 'widget_combobox', 'widget_control',
'widget_displaycontextmenu', 'widget_draw',
'widget_droplist', 'widget_event', 'widget_info',
'widget_label', 'widget_list',
'widget_propertysheet', 'widget_slider', 'widget_tab',
'widget_table', 'widget_text',
'widget_tree', 'widget_tree_move', 'widget_window',
'wiener_filter', 'window',
'window', 'write_bmp', 'write_csv', 'write_gif', 'write_image',
'write_jpeg', 'write_jpeg2000', 'write_nrif', 'write_pict', 'write_png',
'write_ppm', 'write_spr', 'write_srf', 'write_sylk', 'write_tiff',
'write_video', 'write_wav', 'write_wave', 'writeu', 'wset',
'wshow', 'wtn', 'wv_applet', 'wv_cwt', 'wv_cw_wavelet',
'wv_denoise', 'wv_dwt', 'wv_fn_coiflet',
'wv_fn_daubechies', 'wv_fn_gaussian',
'wv_fn_haar', 'wv_fn_morlet', 'wv_fn_paul',
'wv_fn_symlet', 'wv_import_data',
'wv_import_wavelet', 'wv_plot3d_wps', 'wv_plot_multires',
'wv_pwt', 'wv_tool_denoise',
'xbm_edit', 'xdisplayfile', 'xdxf', 'xfont', 'xinteranimate',
'xloadct', 'xmanager', 'xmng_tmpl', 'xmtool', 'xobjview',
'xobjview_rotate', 'xobjview_write_image',
'xpalette', 'xpcolor', 'xplot3d',
'xregistered', 'xroi', 'xsq_test', 'xsurface', 'xvaredit',
'xvolume', 'xvolume_rotate', 'xvolume_write_image',
'xyouts', 'zlib_compress', 'zlib_uncompress', 'zoom', 'zoom_24'
];
var builtins = wordRegexp(builtinArray);
var keywordArray = [
'begin', 'end', 'endcase', 'endfor',
'endwhile', 'endif', 'endrep', 'endforeach',
'break', 'case', 'continue', 'for',
'foreach', 'goto', 'if', 'then', 'else',
'repeat', 'until', 'switch', 'while',
'do', 'pro', 'function'
];
var keywords = wordRegexp(keywordArray);
CodeMirror.registerHelper("hintWords", "idl", builtinArray.concat(keywordArray));
var identifiers = new RegExp('^[_a-z\xa1-\uffff][_a-z0-9\xa1-\uffff]*', 'i');
var singleOperators = /[+\-*&=<>\/@#~$]/;
var boolOperators = new RegExp('(and|or|eq|lt|le|gt|ge|ne|not)', 'i');
function tokenBase(stream) {
// whitespaces
if (stream.eatSpace()) return null;
// Handle one line Comments
if (stream.match(';')) {
stream.skipToEnd();
return 'comment';
}
// Handle Number Literals
if (stream.match(/^[0-9\.+-]/, false)) {
if (stream.match(/^[+-]?0x[0-9a-fA-F]+/))
return 'number';
if (stream.match(/^[+-]?\d*\.\d+([EeDd][+-]?\d+)?/))
return 'number';
if (stream.match(/^[+-]?\d+([EeDd][+-]?\d+)?/))
return 'number';
}
// Handle Strings
if (stream.match(/^"([^"]|(""))*"/)) { return 'string'; }
if (stream.match(/^'([^']|(''))*'/)) { return 'string'; }
// Handle words
if (stream.match(keywords)) { return 'keyword'; }
if (stream.match(builtins)) { return 'builtin'; }
if (stream.match(identifiers)) { return 'variable'; }
if (stream.match(singleOperators) || stream.match(boolOperators)) {
return 'operator'; }
// Handle non-detected items
stream.next();
return 'error';
};
CodeMirror.defineMode('idl', function() {
return {
token: function(stream) {
return tokenBase(stream);
}
};
});
CodeMirror.defineMIME('text/x-idl', 'idl');
});

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public/js/lib/codemirror/mode/idl/index.html vendored
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@ -1,64 +0,0 @@
<!doctype html>
<title>CodeMirror: IDL mode</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="../../doc/docs.css">
<link rel="stylesheet" href="../../lib/codemirror.css">
<script src="../../lib/codemirror.js"></script>
<script src="idl.js"></script>
<style type="text/css">.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
<div id=nav>
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
<ul>
<li><a href="../../index.html">Home</a>
<li><a href="../../doc/manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a href="../index.html">Language modes</a>
<li><a class=active href="#">IDL</a>
</ul>
</div>
<article>
<h2>IDL mode</h2>
<div><textarea id="code" name="code">
;; Example IDL code
FUNCTION mean_and_stddev,array
;; This program reads in an array of numbers
;; and returns a structure containing the
;; average and standard deviation
ave = 0.0
count = 0.0
for i=0,N_ELEMENTS(array)-1 do begin
ave = ave + array[i]
count = count + 1
endfor
ave = ave/count
std = stddev(array)
return, {average:ave,std:std}
END
</textarea></div>
<script>
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
mode: {name: "idl",
version: 1,
singleLineStringErrors: false},
lineNumbers: true,
indentUnit: 4,
matchBrackets: true
});
</script>
<p><strong>MIME types defined:</strong> <code>text/x-idl</code>.</p>
</article>