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- <!doctype html>
-
- <title>CodeMirror: JavaScript 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="../../addon/edit/matchbrackets.js"></script>
- <script src="../../addon/comment/continuecomment.js"></script>
- <script src="../../addon/comment/comment.js"></script>
- <script src="javascript.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="#">JavaScript</a>
- </ul>
- </div>
-
- <article>
- <h2>JavaScript mode</h2>
-
-
- <div><textarea id="code" name="code">
- // Demo code (the actual new parser character stream implementation)
-
- function StringStream(string) {
- this.pos = 0;
- this.string = string;
- }
-
- StringStream.prototype = {
- done: function() {return this.pos >= this.string.length;},
- peek: function() {return this.string.charAt(this.pos);},
- next: function() {
- if (this.pos < this.string.length)
- return this.string.charAt(this.pos++);
- },
- eat: function(match) {
- var ch = this.string.charAt(this.pos);
- if (typeof match == "string") var ok = ch == match;
- else var ok = ch && match.test ? match.test(ch) : match(ch);
- if (ok) {this.pos++; return ch;}
- },
- eatWhile: function(match) {
- var start = this.pos;
- while (this.eat(match));
- if (this.pos > start) return this.string.slice(start, this.pos);
- },
- backUp: function(n) {this.pos -= n;},
- column: function() {return this.pos;},
- eatSpace: function() {
- var start = this.pos;
- while (/\s/.test(this.string.charAt(this.pos))) this.pos++;
- return this.pos - start;
- },
- match: function(pattern, consume, caseInsensitive) {
- if (typeof pattern == "string") {
- function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
- if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
- if (consume !== false) this.pos += str.length;
- return true;
- }
- }
- else {
- var match = this.string.slice(this.pos).match(pattern);
- if (match && consume !== false) this.pos += match[0].length;
- return match;
- }
- }
- };
- </textarea></div>
-
- <script>
- var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
- lineNumbers: true,
- matchBrackets: true,
- continueComments: "Enter",
- extraKeys: {"Ctrl-Q": "toggleComment"}
- });
- </script>
-
- <p>
- JavaScript mode supports several configuration options:
- <ul>
- <li><code>json</code> which will set the mode to expect JSON
- data rather than a JavaScript program.</li>
- <li><code>jsonld</code> which will set the mode to expect
- <a href="http://json-ld.org">JSON-LD</a> linked data rather
- than a JavaScript program (<a href="json-ld.html">demo</a>).</li>
- <li><code>typescript</code> which will activate additional
- syntax highlighting and some other things for TypeScript code
- (<a href="typescript.html">demo</a>).</li>
- <li><code>statementIndent</code> which (given a number) will
- determine the amount of indentation to use for statements
- continued on a new line.</li>
- <li><code>wordCharacters</code>, a regexp that indicates which
- characters should be considered part of an identifier.
- Defaults to <code>/[\w$]/</code>, which does not handle
- non-ASCII identifiers. Can be set to something more elaborate
- to improve Unicode support.</li>
- </ul>
- </p>
-
- <p><strong>MIME types defined:</strong> <code>text/javascript</code>, <code>application/json</code>, <code>application/ld+json</code>, <code>text/typescript</code>, <code>application/typescript</code>.</p>
- </article>
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