一个不错的用JavaScript实现的UBB编码函数

function JsUBB(str)
{
var re=//[i/](.[^/[]*)/[//i/]/gi;
str=str.replace(re,"<i>$1</i>"); //斜体字
re=//[b/](.[^/[]*)/[//b/]/gi;
str=str.replace(re,"<b>$1</b>"); //粗体字
re=//[u/](.[^/[]*)/[//u/]/gi;
str=str.replace(re,"<u>$1</u>"); //下划线
re=//[color=(.[^/[]*)/](.[^/[]*)/[//color/]/gi;
str=str.replace(re,"<font color=$1>$2</font>"); //字体颜色
re=//[size=([1-7])/](.[^/[]*)/[//size/]/gi;
str=str.replace(re,"<font size=$1>$2</font>"); //字体大小
re=//[face=(.[^/[]*)/](.[^/[]*)/[//face/]/gi;
str=str.replace(re,"<font face=$1>$2</font>"); //字体

re=//[center/](.[^/[]*)/[//center/]/gi;
str=str.replace(re,"<div align='center'>$1</div>"); //居中
re=//[right/](.[^/[]*)/[//right/]/gi;
str=str.replace(re,"<div align='right'>$1</div>"); //右对齐
re=//[quote/](.[^/[]*)/[//quote/]/gi; //引用
str=str.replace(re,"<table bgcolor='#E6FFE6' width='90%' style='border:1px #009900 dotted' align='center'><tr><td class='td1'>$1</td></tr></table>");

re=//[fly/](.*)/[//fly/]/gi; //飞行
str=str.replace(re,"<marquee width=90% behavior=alternate scrollamount=3>$1</marquee>");
re=//[move/](.*)/[//move/]/gi; //移动
str=str.replace(re,"<MARQUEE scrollamount=3>$1</marquee>");
re=//[SHADOW=*([0-9]*),*(#*[a-z0-9]*),*([0-9]*)/](.[^/[]*)/[//SHADOW]/gi; //阴影
str=str.replace(re,"<table width=$1><tr><td style='filter:shadow(color=$2, strength=$3)'>$4</td></tr></table>");
re=//[GLOW=*([0-9]*),*(#*[a-z0-9]*),*([0-9]*)/](.[^/[]*)/[//GLOW]/gi; //外发光
str=str.replace(re,"<table width=$1 ><tr><td style='filter:glow(color=$2, strength=$3)'>$4</td></tr></table>")

re=//[URL/](.[^/[]*)/[//URL/]/gi;
str=str.replace(re,"<a href='$1' target=_blank>$1</a>"); //超链接1
re=//[URL=(.[^/[]*)/](.[^/[]*)/[//URL/]/gi;
str=str.replace(re,"<a href='$1' target=_blank>$2</a>"); //超链接2

re=//[EMAIL/]([/w-]+(/.[/w-]+)*@[/w-]+(/.[/w-]+)+)/[//EMAIL/]/gi;
str=str.replace(re,"<a href='mailto:$1'>$1</a>"); //电子邮件链接1
re=//[EMAIL=([/w-]+(/.[/w-]+)*@[/w-]+(/.[/w-]+)+)/](.[^/[]*)/[//EMAIL/]/gi;
str=str.replace(re,"<a href='mailto:$1'>$4</a>"); //电子邮件链接2

re=//[img/](.[^/[]*)/[//img/]/gi;
str=str.replace(re,"<a href='$1' target=_blank><img src='$1' border='0' alt='单击在新窗口浏览'></a>"); //图片
re=/:em(/d{1,}):/gi;
str=str.replace(re,"<img src='emot/$1.gif' border='0'>"); //表情图标
return str;
}