esprima
Version:
ECMAScript parsing infrastructure for multipurpose analysis
121 lines (102 loc) • 3.96 kB
HTML
<html lang="en">
<head>
<meta charset="utf-8">
<title>Esprima: Full Source Rewrite Demo</title>
<script src="../test/3rdparty/platform.js"></script>
<script src="../test/3rdparty/escodegen.js"></script>
<script src="checkenv.js"></script>
<script src="rewrite.js"></script>
<script src="../esprima.js"></script>
<script src="../assets/codemirror/codemirror.js"></script>
<script src="../assets/codemirror/javascript.js"></script>
<link rel="stylesheet" type="text/css" href="../assets/codemirror/codemirror.css"/>
<link rel="stylesheet" type="text/css" href="../assets/style.css"/>
<style>
.CodeMirror-scroll {
height: 300px;
}
</style>
</head>
<body>
<div class="container">
<div class="topbar">
<ul class="nav">
<li><a href="../index.html">← Home</a></li>
<li><a href="http://github.com/ariya/esprima">Code</a></li>
<li><a href="http://wiki.esprima.org">Documentation</a></li>
<li><a href="http://issues.esprima.org">Issues</a></li>
</ul>
</div>
<h1>Source Rewrite <small>cleans up and reformats everything</small></h1>
<p>Type ECMAScript code in the editor. Press <b>Rewrite</b> button to get the code
parsed and reconstructed.</p>
<p><textarea id="code" autofocus="autofocus" cols="70" rows="25" spellcheck="false">
// Example of messy code with confusing and inconsistent indentations
function bubbleSort (list) {
var items = list.slice(0), swapped =false,
p, q;
for ( p= 1;p < items.length; ++p) {
for (q=0; q < items.length - p; ++q) {
if (items[q + 1 ] < items[q]) {
swapped =true;
let temp = items[q];
items[q] = items[ q+1]; items[q+1] = temp;
}
}
if (!swapped)
break;
}
return items;
}
</textarea></p>
<p>Indent with:
<label><input type="radio" name="indent" id="onetab" value="onetab"> tab</label>
<label><input type="radio" name="indent" id="twospaces" value="twospaces"> 2 spaces</label>
<label><input checked type="radio" name="indent" id="fourspaces" value="fourspaces"> 4 spaces</label>
</p>
<p><input type="button" value="Rewrite" id="rewrite"></p>
<p id="codemirror" align="right"><small>The above code editor is based on <a href="http://codemirror.net" target="_blank">CodeMirror</a>.</small></p>
<p id="error"></p>
<p><b>Notes</b>:</p>
<ul>
<li>Only valid syntax is accepted.</li>
<li>Comments are <em>not</em> preserved.</li>
<li>It is still experimental (see the <a href="https://github.com/Constellation/escodegen">escodegen project</a>).</li>
</ul>
<p style="margin-top: 50px;">Using Esprima version <span id="version"></span>.</p>
<div class="footer"><strong>Esprima</strong> is created by
<a href="http://ariya.ofilabs.com/about" target="_blank">Ariya Hidayat</a>. Follow <a href="http://twitter.com/ariyahidayat">@ariyahidayat</a> on Twitter.
</div>
<p id="testbox" style="visibility: hidden;"><textarea id="test"></textarea></p>
</div>
<script>
/*jslint sloppy:true browser:true */
/*global sourceRewrite:true, CodeMirror:true */
window.onload = function () {
var el;
el = document.getElementById('version');
if (typeof el.innerText === 'string') {
el.innerText = window.esprima.version;
} else {
el.textContent = window.esprima.version;
}
document.getElementById('rewrite').onclick = sourceRewrite;
};
try {
window.checkEnv();
// This is just testing, to detect whether CodeMirror would fail or not
window.editor = CodeMirror.fromTextArea(document.getElementById("test"));
window.editor = CodeMirror.fromTextArea(document.getElementById("code"), {
lineNumbers: true,
matchBrackets: true
});
} catch (e) {
// CodeMirror failed to initialize, possible in e.g. old IE.
document.getElementById('codemirror').innerHTML = '';
} finally {
document.getElementById('testbox').parentNode.removeChild(document.getElementById('testbox'));
}
</script>
</body>
</html>