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115 lines
4.1 KiB
HTML
115 lines
4.1 KiB
HTML
<!doctype html>
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<title>CodeMirror: JavaScript mode</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="../../doc/docs.css">
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<link rel="stylesheet" href="../../lib/codemirror.css">
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<script src="../../lib/codemirror.js"></script>
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<script src="../../addon/edit/matchbrackets.js"></script>
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<script src="../../addon/comment/continuecomment.js"></script>
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<script src="../../addon/comment/comment.js"></script>
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<script src="javascript.js"></script>
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<style>.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
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<div id=nav>
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<a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
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<ul>
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<li><a href="../../index.html">Home</a>
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<li><a href="../../doc/manual.html">Manual</a>
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<li><a href="https://github.com/codemirror/codemirror">Code</a>
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</ul>
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<ul>
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<li><a href="../index.html">Language modes</a>
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<li><a class=active href="#">JavaScript</a>
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</ul>
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</div>
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<article>
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<h2>JavaScript mode</h2>
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<div><textarea id="code" name="code">
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// Demo code (the actual new parser character stream implementation)
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function StringStream(string) {
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this.pos = 0;
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this.string = string;
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}
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StringStream.prototype = {
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done: function() {return this.pos >= this.string.length;},
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peek: function() {return this.string.charAt(this.pos);},
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next: function() {
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if (this.pos < this.string.length)
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return this.string.charAt(this.pos++);
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},
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eat: function(match) {
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var ch = this.string.charAt(this.pos);
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if (typeof match == "string") var ok = ch == match;
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else var ok = ch && match.test ? match.test(ch) : match(ch);
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if (ok) {this.pos++; return ch;}
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},
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eatWhile: function(match) {
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var start = this.pos;
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while (this.eat(match));
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if (this.pos > start) return this.string.slice(start, this.pos);
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},
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backUp: function(n) {this.pos -= n;},
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column: function() {return this.pos;},
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eatSpace: function() {
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var start = this.pos;
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while (/\s/.test(this.string.charAt(this.pos))) this.pos++;
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return this.pos - start;
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},
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match: function(pattern, consume, caseInsensitive) {
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if (typeof pattern == "string") {
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function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
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if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
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if (consume !== false) this.pos += str.length;
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return true;
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}
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}
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else {
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var match = this.string.slice(this.pos).match(pattern);
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if (match && consume !== false) this.pos += match[0].length;
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return match;
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}
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}
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};
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</textarea></div>
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<script>
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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lineNumbers: true,
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matchBrackets: true,
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continueComments: "Enter",
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extraKeys: {"Ctrl-Q": "toggleComment"}
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});
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</script>
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<p>
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JavaScript mode supports several configuration options:
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<ul>
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<li><code>json</code> which will set the mode to expect JSON
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data rather than a JavaScript program.</li>
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<li><code>jsonld</code> which will set the mode to expect
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<a href="http://json-ld.org">JSON-LD</a> linked data rather
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than a JavaScript program (<a href="json-ld.html">demo</a>).</li>
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<li><code>typescript</code> which will activate additional
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syntax highlighting and some other things for TypeScript code
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(<a href="typescript.html">demo</a>).</li>
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<li><code>statementIndent</code> which (given a number) will
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determine the amount of indentation to use for statements
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continued on a new line.</li>
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<li><code>wordCharacters</code>, a regexp that indicates which
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characters should be considered part of an identifier.
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Defaults to <code>/[\w$]/</code>, which does not handle
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non-ASCII identifiers. Can be set to something more elaborate
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to improve Unicode support.</li>
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</ul>
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</p>
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<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>
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</article>
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