mirror of
https://github.com/Jermolene/TiddlyWiki5
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f6338d9109
It preserves comments and text positions, enabling us to do syntax highlighting. Hopefully.
191 lines
6.1 KiB
HTML
191 lines
6.1 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>Esprima: Parsing Demo</title>
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<script src="../test/3rdparty/platform.js"></script>
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<script src="checkenv.js"></script>
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<script src="../esprima.js"></script>
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<script src="../assets/json2.js"></script>
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<script src="../assets/codemirror/codemirror.js"></script>
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<script src="../assets/codemirror/javascript.js"></script>
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<link rel="stylesheet" type="text/css" href="../assets/codemirror/codemirror.css"/>
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<link rel="stylesheet" type="text/css" href="../assets/style.css"/>
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<link rel="stylesheet" type="text/css" href="parse.css"/>
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<script>
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/*jslint sloppy:true browser:true */
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/*global esprima:true */
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var parseId;
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function parse(delay) {
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if (parseId) {
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window.clearTimeout(parseId);
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}
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parseId = window.setTimeout(function () {
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var code, options, result, el, str;
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// Special handling for regular expression literal since we need to
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// convert it to a string literal, otherwise it will be decoded
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// as object "{}" and the regular expression would be lost.
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function adjustRegexLiteral(key, value) {
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if (key === 'value' && value instanceof RegExp) {
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value = value.toString();
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}
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return value;
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}
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if (typeof window.editor === 'undefined') {
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code = document.getElementById('code').value;
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} else {
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code = window.editor.getValue();
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}
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options = {
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comment: document.getElementById('comment').checked,
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raw: document.getElementById('raw').checked,
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range: document.getElementById('range').checked,
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loc: document.getElementById('loc').checked
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};
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document.getElementById('tokens').value = '';
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try {
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result = esprima.parse(code, options);
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str = JSON.stringify(result, adjustRegexLiteral, 4);
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document.getElementById('tokens').value = JSON.stringify(esprima.parse(code,
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{ tokens : true }).tokens, adjustRegexLiteral, 4);
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} catch (e) {
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str = e.toString();
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}
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el = document.getElementById('syntax');
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el.value = str;
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parseId = undefined;
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}, delay || 811);
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}
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</script>
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</head>
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<body>
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<div class="container">
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<div class="topbar">
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<ul class="nav">
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<li><a href="../index.html">← Home</a></li>
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<li><a href="http://github.com/ariya/esprima">Code</a></li>
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<li><a href="http://wiki.esprima.org">Documentation</a></li>
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<li><a href="http://issues.esprima.org">Issues</a></li>
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</ul>
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</div>
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<h1>Parser <small>produces syntax tree</small></h1>
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<p>Esprima version <span id="version"></span>.</p>
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<p>Type ECMAScript code:</p>
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<p><textarea id="code" autofocus="autofocus" cols="70" rows="15" spellcheck="false">
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// Life, Universe, and Everything
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var answer = 6 * 7;</textarea></p>
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<p id="codemirror" align="right"><small>The above code editor is based on <a href="http://codemirror.net" target="_blank">CodeMirror</a>.</small></p>
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<p><label><input type="checkbox" id="raw"> Preserve raw value of literals</label></p>
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<p><label><input type="checkbox" id="comment"> Include comments</label></p>
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<p> Syntax node location info (start, end)</p>
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<div style="margin-left: 20px;">
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<p><label><input type="checkbox" id="range">Index-based range</label></p>
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<p><label><input type="checkbox" id="loc">Line and column-based</label></p>
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</div>
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<div class="tabs">
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<ul>
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<li id="tab_syntax" class="active">
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<h3><a id="show_syntax">Syntax</a></h3>
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<div class="tab">
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<textarea id="syntax" rows="20" readonly></textarea>
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</div>
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</li>
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<li id="tab_tokens">
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<h3><a id="show_tokens">Tokens</a></h3>
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<div class="tab">
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<textarea id="tokens" rows="20" readonly></textarea>
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</div>
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</li>
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</ul>
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</div>
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<!--
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<div class="footer"><strong>Esprima</strong> is created by
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<a href="http://ariya.ofilabs.com/about" target="_blank">Ariya Hidayat</a>. Follow <a href="http://twitter.com/ariyahidayat">@ariyahidayat</a> on Twitter.
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</div>
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-->
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<p id="testbox"><textarea id="test"></textarea></p>
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</div>
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<script>
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window.onload = function () {
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var id, el;
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id = function (i) {
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return document.getElementById(i);
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};
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el = id('version');
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if (typeof el.innerText === 'string') {
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el.innerText = esprima.version;
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} else {
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el.textContent = esprima.version;
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}
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try {
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parse(1);
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} catch (e) { }
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id('show_syntax').onclick = function () {
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id('tab_syntax').className = 'active';
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id('tab_tokens').className = '';
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};
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id('show_tokens').onclick = function () {
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id('tab_syntax').className = '';
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id('tab_tokens').className = 'active';
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};
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};
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</script>
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<script>
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/*jslint sloppy:true browser:true */
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/*global CodeMirror:true */
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try {
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function quickParse() { parse(1); }
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document.getElementById('comment').onchange = quickParse;
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document.getElementById('raw').onchange = quickParse;
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document.getElementById('range').onchange = quickParse;
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document.getElementById('loc').onchange = quickParse;
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document.getElementById('tokens').onchange = quickParse;
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// Special handling for IE.
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document.getElementById('comment').onclick = quickParse;
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document.getElementById('raw').onclick = quickParse;
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document.getElementById('range').onclick = quickParse;
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document.getElementById('loc').onclick = quickParse;
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document.getElementById('tokens').onclick = quickParse;
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window.checkEnv();
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// This is just testing, to detect whether CodeMirror would fail or not
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window.editor = CodeMirror.fromTextArea(document.getElementById("test"));
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window.editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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lineNumbers: true,
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matchBrackets: true,
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onChange: parse
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});
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} catch (e) {
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// CodeMirror failed to initialize, possible in e.g. old IE.
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document.getElementById('codemirror').innerHTML = '';
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document.getElementById('code').onchange = parse;
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document.getElementById('code').onkeydown = parse;
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} finally {
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document.getElementById('testbox').parentNode.removeChild(document.getElementById('testbox'));
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}
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</script>
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</body>
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</html>
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