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insin/RegExp-findall.js

Created April 8, 2011 11:12
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findAll method for RegExps with results in the vein of Python's re.findall
Raw
RegExp-findall.js
RegExp.prototype.findAll = function(str) {
var match = null, results = [];
while ((match = this.exec(str)) !== null) {
switch (match.length) {
case 1:
results[results.length] = match[0];
break;
case 2:
results[results.length] = match[1];
break;
default:
results[results.length] = match.slice(1);
}
if (!this.global) {
break;
}
}
return results;
}
RegExp.findAll = function(re, str, flags) {
if (Object.prototype.toString.call(re) != '[object RegExp]') {
re = new RegExp(re, flags);
}
return re.findAll(str);
}
Raw
tests.html
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<title>RegExp-findAll QUnit Tests</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="Author" content="Jonathan Buchanan">
<!-- Test framework -->
<link rel="stylesheet" href="http://code.jquery.com/qunit/git/qunit.css" type="text/css" media="screen">
<script type="text/javascript" src="http://code.jquery.com/qunit/git/qunit.js"></script>
<!-- Code under test -->
<script type="text/javascript" src="RegExp-findall.js"></script>
<!-- Test cases -->
<script type="text/javascript" src="tests.js"></script>
</head>
<body>
<h1 id="qunit-header">RegExp-findAll QUnit Tests</h1>
<h2 id="qunit-banner"></h2>
<div id="qunit-testrunner-toolbar"></div>
<h2 id="qunit-userAgent"></h2>
<ol id="qunit-tests"></ol>
<div id="qunit-fixture"></div>
</body>
</html>
Raw
tests.js
module = QUnit.module;
module('RegExp-findAll');
(function() {
var str = 'abc123def456';
var nomatch = '!"£$%^&*()';
test('RegExp.prototype.findAll', 12, function() {
deepEqual(/[a-z]\d/.findAll(str), ['c1']);
deepEqual(/[a-z]\d/g.findAll(str), ['c1', 'f4']);
deepEqual(/[a-z](\d)/.findAll(str), ['1']);
deepEqual(/[a-z](\d)/g.findAll(str), ['1', '4']);
deepEqual(/[a-z](\d)(\d)/.findAll(str), [['1', '2']]);
deepEqual(/[a-z](\d)(\d)/g.findAll(str), [['1', '2'], ['4', '5']]);
deepEqual(/[a-z]\d/.findAll(nomatch), []);
deepEqual(/[a-z]\d/g.findAll(nomatch), []);
deepEqual(/[a-z](\d)/.findAll(nomatch), []);
deepEqual(/[a-z](\d)/g.findAll(nomatch), []);
deepEqual(/[a-z](\d)(\d)/.findAll(nomatch), []);
deepEqual(/[a-z](\d)(\d)/g.findAll(nomatch), []);
});
test('RegExp.findAll', 12, function() {
deepEqual(RegExp.findAll('[a-z]\\d', str), ['c1']);
deepEqual(RegExp.findAll('[a-z]\\d', str, 'g'), ['c1', 'f4']);
deepEqual(RegExp.findAll('[a-z](\\d)', str), ['1']);
deepEqual(RegExp.findAll('[a-z](\\d)', str, 'g'), ['1', '4']);
deepEqual(RegExp.findAll('[a-z](\\d)(\\d)', str), [['1', '2']]);
deepEqual(RegExp.findAll('[a-z](\\d)(\\d)', str, 'g'), [['1', '2'], ['4', '5']]);
deepEqual(RegExp.findAll('[a-z]\\d', nomatch), []);
deepEqual(RegExp.findAll('[a-z]\\d', nomatch, 'g'), []);
deepEqual(RegExp.findAll('[a-z](\\d)', nomatch), []);
deepEqual(RegExp.findAll('[a-z](\\d)', nomatch, 'g'), []);
deepEqual(RegExp.findAll('[a-z](\\d)(\\d)', nomatch), []);
deepEqual(RegExp.findAll('[a-z](\\d)(\\d)', nomatch, 'g'), []);
});
})();
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