olgen/god — pull request #1 by Chutina (2013-03-06 16:59:43+00:00)
Title: Chutinagod

...Usage:	Add a script tag for this script and any stylesets you need to use	to the page in question, add correct class names to CODE elements,	define CSS styles for elements. That's it!	Known to work on:	IE 5.5+ PC	Firefox/Mozilla PC/Mac	Opera 7.23 + PC	Safari 2	Known to degrade gracefully on:	IE5.0 PC	Note: IE5.0 fails due to the use of lookahead in some stylesets. To avoid script errors	in older browsers use expressions that use lookahead in string format when defining stylesets.	This script is inspired by star-light by entirely cunning Dean Edwards	http://dean.edwards.name/star-light/. */ // replace callback support for safari. if ("a".replace(/a/, function() {return "b"}) != "b") (function(){ var default_replace = String.prototype.replace; String.prototype.replace = function(search,replace){	// replace is not function	if(typeof replace != "function"){	return default_replace.apply(this,arguments)	}	var str = "" + this;	var callback = replace;	// search string is not RegExp	if(!(search instanceof RegExp)){	var idx = str.indexOf(search);	return (	idx == -1 ? str :	default_replace.apply(str,[search,callback(search, idx, str)])	)	}	var reg = search;	var result = [];	var lastidx = reg.lastIndex;	var re;	while((re = reg.exec(str)) != null){	var idx = re.index;	var args = re.concat(idx, str);	result.push(	str.slice(lastidx,idx),	callback.apply(null,args).toString()	);	if(!reg.global){	lastidx += RegExp.lastMatch.length;	break	}else{	lastidx = reg.lastIndex;	}	}	result.push(str.slice(lastidx));	return result.join("") } })(); var CodeHighlighter = { styleSets : new Array }; CodeHighlighter.addStyle = function(name, rules) {	// using push test to disallow older browsers from adding styleSets	if ([].push) this.styleSets.push({	name : name,	rules : rules,	ignoreCase : arguments[2] || false	})	function setEvent() {	// set highlighter to run on load (use LowPro if present)	if (typeof Event != 'undefined' && typeof Event.onReady == 'function')	return Event.onReady(CodeHighlighter.init.bind(CodeHighlighter));	var old = window.onload;	if (typeof window.onload != 'function') {	window.onload = function() { CodeHighlighter.init() };	} else {	window.onload = function() {	old();	CodeHighlighter.init();	}	}	}	// only set the event when the first style is added	if (this.styleSets.length==1) setEvent(); } CodeHighlighter.init = function() {	if (!document.getElementsByTagName) return;	if ("a".replace(/a/, function() {return "b"}) != "b") return; // throw out Safari versions that don't support replace function	// throw out older browsers	var codeEls = document.getElementsByTagName("CODE");	// collect array of all pre elements	codeEls.filter = function(f) {	var a = new Array;	for (var i = 0; i < this.length; i++) if (f(this[i])) a[a.length] = this[i];	return a;	}	var rules = new Array;	rules.toString = function() {	// joins regexes into one big parallel regex	var exps = new Array;	for (var i = 0; i < this.length; i++) exps.push(this[i].exp);	return exps.join("|");	}	function addRule(className, rule) {	// add a replace rule	var exp = (typeof rule.exp != "string")?String(rule.exp).substr(1, String(rule.exp).length-2):rule.exp;	// converts regex rules to strings and chops of the slashes	rules.push({	className : className,	exp : "(" + exp + ")",	length : (exp.match(/(^|[^\\])\([^?]/g) || "").length + 1, // number of subexps in rule	replacement : rule.replacement || null	});	}	function parse(text, ignoreCase) {	// main text parsing and replacement	return text.replace(new RegExp(rules, (ignoreCase)?"gi":"g"), function() {	var i = 0, j = 1, rule;	while (rule = rules[i++]) {	if (arguments[j]) {	// if no custom replacement defined do the simple replacement	if (!rule.replacement) return "" + arguments[0] + "";	else {	// replace $0 with the className then do normal replaces	var str = rule.replacement.replace("$0", rule.className);	for (var k = 1; k <= rule.length - 1; k++) str = str.replace("$" + k, arguments[j + k]);	return str;	}	} else j+= rule.length;	}	});	}	function highlightCode(styleSet) {	// clear rules array	var parsed, clsRx = new RegExp("(\\s|^)" + styleSet.name + "(\\s|$)");	rules.length = 0;	// get stylable elements by filtering out all code elements without the correct className	var stylableEls = codeEls.filter(function(item) { return clsRx.test(item.className) });	// add style rules to parser	for (var className in styleSet.rules) addRule(className, styleSet.rules[className]);	// replace for all elements	for (var i = 0; i < stylableEls.length; i++) {	// EVIL hack to fix IE whitespace badness if it's inside a

if (/MSIE/.test(navigator.appVersion) && stylableEls[i].parentNode.nodeName == 'PRE') {	stylableEls[i] = stylableEls[i].parentNode;	parsed = stylableEls[i].innerHTML.replace(/(]*>)([^<]*)<\/code>/i, function() {	return arguments[1] + parse(arguments[2], styleSet.ignoreCase) + ""	});	parsed = parsed.replace(/\n( *)/g, function() {	var spaces = "";	for (var i = 0; i < arguments[1].length; i++) spaces+= " ";	return "\n" + spaces;	});	parsed = parsed.replace(/\t/g, " ");	parsed = parsed.replace(/\n(<\/\w+>)?/g, "
$1").replace(/
[\n\r\s]*
/g, "

");	} else parsed = parse(stylableEls[i].innerHTML, styleSet.ignoreCase);	stylableEls[i].innerHTML = parsed;	}	}	// run highlighter on all stylesets	for (var i=0; i < this.styleSets.length; i++) {	highlightCode(this.styleSets[i]);	} }