BBCode Replacer

By Aquilax — Last update Apr 26, 2008 — Installed 88 times.

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// ==UserScript==
// @name           BBCode Replacer
// @namespace      http://userscripts.org/users/28612
//@version        0.01.00
// @description    Replace BBCode with html tags
// @include        *
// ==/UserScript==

replaceTextContent(/\[(\w*)=?(.*?)\]((?:.|\s)*?)\[\/\1\]/gmi,replaceBBCode,document.body);

function replaceTextContent(regexp,handler,node)
{
	//GM_log("replacing: "+node.textContent);
	var snapshots=document.evaluate("//text()",node,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);
	for(var num1=0;num1<snapshots.snapshotLength;num1++)
	{
		regexp.lastIndex=0;
		var node1=snapshots.snapshotItem(num1);
		var match1=regexp.exec(node1.textContent);
		if (match1)
		{
			var node2=node1.parentNode;
			var node3=node1.nextSibling;
			var text1=RegExp.rightContext;
			node2.removeChild(node1);
			while (match1)
			{
				text1=RegExp.rightContext;
				node2.insertBefore(document.createTextNode(RegExp.leftContext),node3);
				var node1=handler(match1);
				node2.insertBefore(node1,node3);
				replaceTextContent(regexp,handler,node1);
				regexp.lastIndex=0;
				match1=regexp.exec(text1);
			}
			node2.insertBefore(document.createTextNode(text1),node3);
		}
	}
}

function replaceBBCode(match)
{
	//GM_log("match: "+match);
	switch(match[1].toLowerCase())
	{
		case "b":
		case "i":
		case "s":
		case "u":
		case "center":
			return createElement(match[1],match[3]);
		case "code":
			return createElement("pre",match[3]);
		case "color":
			return createElement("span",match[3],{"style":"color:"+match[2]});
		case "email":
			return createElement("a",match[3],{"src":"mailto:"+getUrl(match)});
		case "image":
		case "img":
			return createElement("img",null,{"src":getUrl(match),"alt":match[3]});
		case "link":
		case "url":
			return createElement("a",match[3],{"src":getUrl(match)});
		case "quote":
			return createElement("blockquote",match[3]);
		case "size":
			return createElement("span",match[3],{"style":"font-size:"+match[2]});
		case "spoiler":
			var span1=createElement("span",null,{"title":"Click to hide/show Spoiler","onclick":"var  s1=this.firstChild.style; var s2=this.firstChild.nextSibling.style; var t=s1.display; s1.display=s2.display; s2.display=t;"});
			span1.appendChild(createElement("span","Spoiler"));
			span1.appendChild(createElement("span",match[3],{"style":"display:none"}));
			return span1;
	}
	return document.createTextNode(match[0]);
}

function createElement(tagName,textContent,attributes)
{
	var element1=document.createElement(tagName);
	element1.textContent=textContent;
	for(var name1 in attributes) element1.setAttribute(name1,attributes[name1]);
	return element1;
}

function getUrl(match) {return (match[2]?match[2]:match[3]).replace(/\s/g,"");}