UBB/HTML互相转换简单实现源码一览

查看源码，主要用的就是正则匹配，多的不说，直接读码。

资源原地址：在线UBB/HTML转换
效果图如下

UBB/HTML互相转换简单实现源码一览
以下源码：

<!DOCTYPE html>

<html lang="zh-CN">

	<head>

		<title>UBB/HTML转换</title>

		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

		<link rel="stylesheet" href="./css/basic.css?20120912" type="text/css"/>

		<script type="text/javascript" src='./js/jquery/jquery-1.7.2.min.js'></script>

		<link rel="stylesheet" href='./js/bootstrap/css/bootstrap.min.css'/>

		<script src='./js/bootstrap/js/bootstrap.min.js'></script>

	</head>

	<body>

		<div id="mainContent" class="wrapper">

			<div class="toolName">UBB/HTML转换</div>

			<div class="toolUsing clearfix">

				<div class="leftBar">

					<div class="title">UBB:</div>

					<textarea name="cipher" id="u_source" onkeyup="to_html();">[b]this is a example[/b]</textarea>

				</div>

				<div class="operateLR">

					<div class="OptDetail Button">

						<button class="btn btn-primary" onclick="javascript:to_html();"> HTML <i class="icon-chevron-right icon-white"></i></button><br><br>

						<button class="btn btn-primary" onclick="javascript:to_ubb();"><i class="icon-chevron-left icon-white"></i> UBB </button><br><br>

						<button class="btn btn-primary active" data-toggle="button" id="realtime">实时预览</button>

					</div>

				</div>

				<div class="rightBar">

					<div class="title">HTML:</div>

					<textarea name="message" id="h_source" class="text_source" onkeyup="to_ubb();"></textarea>

				</div>

			</div>

			<div id="realtime-wrapper" style="margin-top:10px;">

				<lalel>实时预览：</lalel>

				<div id="realtime-preview" class="well" style="margin-top:10px;"></div>

			</div>

		</div>

		<script>

			$(function(){

				//实时预览

				$("#realtime").click(function(){

					$("#realtime-wrapper").toggle();

				});

			});

			function to_ubb(){

				var html = $("#h_source").val();

				$("#realtime-preview").html(html);

				str = pattern(html);

				$("#u_source").val(str);

			}

			function pattern(str){

				//str = str.replace(/(\r\n|\n|\r)/ig, '');

				str = str.replace(/<br[^>]*>/ig,'\n');

				str = str.replace(/<p[^>\/]*\/>/ig,'\n');

				//str = str.replace(/\[code\](.+?)\[\/code\]/ig, function($1, $2) {return phpcode($2);});

				str = str.replace(/\son[\w]{3,16}\s?=\s*([\'\"]).+?\1/ig,'');

				str = str.replace(/<hr[^>]*>/ig,'[hr]');

				str = str.replace(/<(sub|sup|u|strike|b|i|pre)>/ig,'[$1]');

				str = str.replace(/<\/(sub|sup|u|strike|b|i|pre)>/ig,'[/$1]');

				str = str.replace(/<(\/)?strong>/ig,'[$1b]');

				str = str.replace(/<(\/)?em>/ig,'[$1i]');

				str = str.replace(/<(\/)?blockquote([^>]*)>/ig,'[$1blockquote]');

				str = str.replace(/<img[^>]*smile=\"(\d+)\"[^>]*>/ig,'[s:$1]');

				str = str.replace(/<img[^>]*src=[\'\"\s]*([^\s\'\"]+)[^>]*>/ig,'[img]'+'$1'+'[/img]');

				str = str.replace(/<a[^>]*href=[\'\"\s]*([^\s\'\"]*)[^>]*>(.+?)<\/a>/ig,'[url=$1]'+'$2'+'[/url]');

				//str = str.replace(/<h([1-6]+)([^>]*)>(.*?)<\/h\1>/ig,function($1,$2,$3,$4){return h($3,$4,$2);});

				str = str.replace(/<[^>]*?>/ig, '');

				str = str.replace(/&amp;/ig, '&');

				str = str.replace(/&lt;/ig, '<');

				str = str.replace(/&gt;/ig, '>');

				return str;

			}

			function up(str){

				str = str.replace(/</ig,'&lt;');

				str = str.replace(/>/ig,'&gt;');

				str = str.replace(/\n/ig,'<br />');

				str = str.replace(/\[code\](.+?)\[\/code\]/ig, function($1, $2) {return phpcode($2);});

				str = str.replace(/\[hr\]/ig,'<hr />');

				str = str.replace(/\[\/(size|color|font|backcolor)\]/ig,'</font>');

				str = str.replace(/\[(sub|sup|u|i|strike|b|blockquote|li)\]/ig,'<$1>');

				str = str.replace(/\[\/(sub|sup|u|i|strike|b|blockquote|li)\]/ig,'</$1>');

				str = str.replace(/\[\/align\]/ig,'</p>');

				str = str.replace(/\[(\/)?h([1-6])\]/ig,'<$1h$2>');

				str = str.replace(/\[align=(left|center|right|justify)\]/ig,'<p align="$1">');

				str = str.replace(/\[size=(\d+?)\]/ig,'<font size="$1">');

				str = str.replace(/\[color=([^\[\<]+?)\]/ig, '<font color="$1">');

				str = str.replace(/\[backcolor=([^\[\<]+?)\]/ig, '<font style="background-color:$1">');

				str = str.replace(/\[font=([^\[\<]+?)\]/ig, '<font face="$1">');

				str = str.replace(/\[list=(a|A|1)\](.+?)\[\/list\]/ig,'<ol type="$1">$2</ol>');

				str = str.replace(/\[(\/)?list\]/ig,'<$1ul>');

				str = str.replace(/\[s:(\d+)\]/ig,function($1,$2){ return smilepath($2);});

				str = str.replace(/\[img\]([^\[]*)\[\/img\]/ig,'<img src="$1" border="0" />');

				str = str.replace(/\[url=([^\]]+)\]([^\[]+)\[\/url\]/ig, '<a href="$1">'+'$2'+'</a>');

				str = str.replace(/\[url\]([^\[]+)\[\/url\]/ig, '<a href="$1">'+'$1'+'</a>');

				return str;

			}

			function to_html(){

				str = up($("#u_source").val());

				$("#realtime-preview").html(str);

				$("#h_source").val(str);

			}

		</script>

	</body>

</html>