将UBB编码转成标准的HTML代码

/// <summary>
/// 将UBB编码转成标准的HTML代码
/// </summary>
/// <param name="argString"></param>
/// <returns></returns>
public static string HtmlDecode(string argString)
{
string tString = argString;
if (tString != "")
{
Regex tRegex;
bool tState = true;
tString = tString.Replace("&", "&amp;");
tString = tString.Replace(">", "&gt;");
tString = tString.Replace("<", "&lt;");
tString = tString.Replace("\"", "&quot;");
tString = Regex.Replace(tString, @"\[br\]", "<br />", RegexOptions.IgnoreCase);
string[,] tRegexAry = {
{@"\[p\]([^\[]*?)\[\/p\]", "$1<br />"},
{@"\[b\]([^\[]*?)\[\/b\]", "<b>$1</b>"},
{@"\[i\]([^\[]*?)\[\/i\]", "<i>$1</i>"},
{@"\[u\]([^\[]*?)\[\/u\]", "<u>$1</u>"},
{@"\[ol\]([^\[]*?)\[\/ol\]", "<ol>$1</ol>"},
{@"\[ul\]([^\[]*?)\[\/ul\]", "<ul>$1</ul>"},
{@"\[li\]([^\[]*?)\[\/li\]", "<li>$1</li>"},
{@"\[code\]([^\[]*?)\[\/code\]", "<div class=\"ubb_code\">$1</div>"},
{@"\[quote\]([^\[]*?)\[\/quote\]", "<div class=\"ubb_quote\">$1</div>"},
{@"\[color=([^\]]*)\]([^\[]*?)\[\/color\]", "<font style=\"color: $1\">$2</font>"},
{@"\[hilitecolor=([^\]]*)\]([^\[]*?)\[\/hilitecolor\]", "<font style=\"background-color: $1\">$2</font>"},
{@"\[align=([^\]]*)\]([^\[]*?)\[\/align\]", "<div style=\"text-align: $1\">$2</div>"},
{@"\[url=([^\]]*)\]([^\[]*?)\[\/url\]", "<a href=\"$1\">$2</a>"},
{@"\[img\]([^\[]*?)\[\/img\]", "<img src=\"$1\" />"}
};
while (tState)
{
tState = false;
for (int ti = 0; ti < tRegexAry.GetLength(0); ti++)
{
tRegex = new Regex(tRegexAry[ti, 0], RegexOptions.IgnoreCase);
if (tRegex.Match(tString).Success)
{
tState = true;
tString = Regex.Replace(tString, tRegexAry[ti, 0], tRegexAry[ti, 1], RegexOptions.IgnoreCase);
}
}
}
}
return tString;
}