这个功能主要是让 UBB 转贴的时候方便点.

1.自动识别图片,超链接,字体颜色,和字体加粗,倾斜,下划线的HTML代码,并且转换为UBB代码.
2.兼容 IE 和 Mozilla多种浏览器
html
head
titleHtml转换程序/title
SCRIPT language="JavaScript1.2"
function HtmlToUBB(str) {
str = str.replace(/r/g,"");
str = str.replace(/on(load|click|dbclick|mouseover|mousedown|mouseup)="[^"]+"/ig,"");
str = str.replace(/script[^]*？([wW]*？)/script/ig,"");
str = str.replace(/a[^]+href="([^"]+)"[^]*(.*？)/a/ig,"n[url=$1]$2[/url]n");
str = str.replace(/font[^]+color=([^ ]+)[^]*(.*？)/font/ig,"n[color=$1]$2[/color]n");
str = str.replace(/img[^]+src="([^"]+)"[^]*/ig,"n[img]$1[/img]n");
str = str.replace(/([/]？)b/ig,"[$1b]");
str = str.replace(/([/]？)strong/ig,"[$1b]");
str = str.replace(/([/]？)u/ig,"[$1u]");
str = str.replace(/([/]？)i/ig,"[$1i]");
str = str.replace(/ /g," ");
str = str.replace(/&/g,"&");
str = str.replace(/"/g,""");
str = str.replace(//g,"");
str = str.replace(//g,"");
str = str.replace(/br/ig,"n");
str = str.replace(/[^]*？/g,"");
str = str.replace(/[url=([^]]+)]n([img]1[/img])n[/url]/g,"$2");
str = str.replace(/n+/g,"n");
return str;
}

function trans(){
var str = "";
str = document.getElementById('edit').contentWindow.document.body.innerHTML;
if (str.length == 0) {
alert("无转换内容！请使用 Ctrl+V 把内容复制到下面的编辑框内");
}
document.getElementById('ReCode').value=HtmlToUBB(str);
}

function clearCode(){
document.getElementById('ReCode').value="";
}

function Start() {
document.getElementById('edit').contentWindow.document.designMode = "on";
try {
document.getElementById('edit').contentWindow.document.execCommand("undo", false, null);
} catch (e) {
alert("你的Mozilla浏览器不支持在线RichEditor");
}
}

function ViewSource(Source){
var Html;
if (Source){
document.getElementById('sCode').value = document.getElementById('edit').contentWindow.document.body.innerHTML;
document.getElementById('edit').style.display="none";
document.getElementById('sCode').style.display="";
document.getElementById('tip').innerText="修改粘贴后的网页源代码 ";
document.getElementById('tranButton').disabled="disabled"
}
else{
document.getElementById('edit').contentWindow.document.body.innerHTML = document.getElementById('sCode').value;
document.getElementById('edit').style.display="";
document.getElementById('sCode').style.display="none";
document.getElementById('edit').contentWindow.document.designMode = "on";
document.getElementById('tip').innerText="请使用 Ctrl+V 把内容复制到这里 ";
document.getElementById('tranButton').disabled=""
}
}
/SCRIPT
style
body{background:#688ABD;margin:2px;}
label{color:#fff;}
th{font-size:14px;font-family:verdana,宋体;font-weight:bold;color:fc6;text-align:left}
#sCode{width:400;height:150px;border:1px solid #1F2F47;margin-top:0px !important;margin-top:-1px;margin-bottom:0px !important;margin-bottom:-1px;}
#ReCode{width:400;height:150px;border:1px solid #1F2F47;font-size:12px;}
#edit{width:398;height:148px;border:1px solid #1F2F47;background:#fff;font-size:12px}
.input{
border-top:1px solid #fff;
border-right:1px solid #003;
border-bottom:1px solid #003;
border-left:1px solid #fff;
background:#F4F7FB;
}
.tip{
color:#ffc;
font-weight:bold;
font-size:12px;
font-family:宋体;
}
/style
/head
body onload="Start()" style=""
table border="0" align="center"
tr
th style=""Html转换UBB程序/th
/tr
tr
td style="font-size:12px;"
label for="Source"input type="checkbox" id="Source" onclick="ViewSource(this.checked)"查看源代码 /label
input id="tranButton" type="button" value="转 换" onclick="trans()" class="input"
input type="button" value="清 除" onclick="clearCode()" class="input"/td
/tr
tr
td class="tip"
span id="tip"请使用 Ctrl+V 把内容复制到这里 /span/td
/tr
tr
td
textarea id="sCode" style="display:none"/textarea
iframe id="edit"src="about:blank" border="0" frameborder="0"/iframe
/td
/tr
tr
td class="tip"
转换输出代码 /td
/tr
tr
td
textarea id="ReCode" readonly="readonly"/textarea
/td
/tr
/table
/body
/html