UBB
参考了一些文章，整理了一下，大家可以直接拿去用吧，其实自从有了FreeTextBox这样的东东出现，ＵＢＢ已经渐渐淡出江湖了。
using System;
using System.Text;
using System.Text.RegularExpressions;
namespace Test.Com
{
/**//// <summary>
/// 功能：UBB代码
/// 作者：Rexsp
/// 日期：2004-4-6
/// </summary>
public class UBB
{
构造函数#region 构造函数
public UBB()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
#endregion
公共静态方法#region 公共静态方法
/**//// <summary>
/// UBB代码处理函数
/// </summary>
/// <param name="sDetail">输入字符串</param>
/// <returns>输出字符串</returns>
public static string UBBToHTML(string sDetail)
{
Regex r;
Match m;
处理空格#region 处理空格
sDetail = sDetail.Replace(" "," ");
#endregion
html标记符#region html标记符
sDetail = sDetail.Replace("<","<");
sDetail = sDetail.Replace(">",">");
#endregion
处[b][/b]标记#region 处[b][/b]标记
r = new Regex(@"(\[b\])([ \S\t]*?)(\[\/b\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),"<B>" + m.Groups[2].ToString() + "</B>");
}
#endregion
处[i][/i]标记#region 处[i][/i]标记
r = new Regex(@"(\[i\])([ \S\t]*?)(\[\/i\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),"<I>" + m.Groups[2].ToString() + "</I>");
}
#endregion
处[u][/u]标记#region 处[u][/u]标记
r = new Regex(@"(\[U\])([ \S\t]*?)(\[\/U\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),"<U>" + m.Groups[2].ToString() + "</U>");
}
#endregion
处[p][/p]标记#region 处[p][/p]标记
//处[p][/p]标记
r = new Regex(@"((\r\n)*\[p\])(.*?)((\r\n)*\[\/p\])",RegexOptions.IgnoreCase|RegexOptions.Singleline);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),"<P class=\"pstyle\">" + m.Groups[3].ToString() + "</P>");
}
#endregion
处[sup][/sup]标记#region 处[sup][/sup]标记
//处[sup][/sup]标记
r = new Regex(@"(\[sup\])([ \S\t]*?)(\[\/sup\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),"<SUP>" + m.Groups[2].ToString() + "</SUP>");
}
#endregion
处[sub][/sub]标记#region 处[sub][/sub]标记
//处[sub][/sub]标记
r = new Regex(@"(\[sub\])([ \S\t]*?)(\[\/sub\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),"<SUB>" + m.Groups[2].ToString() + "</SUB>");
}
#endregion
处标记#region 处标记
//处标记
r = new Regex(@"(\[url\])([ \S\t]*?)(\[\/url\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<A href=\"" + m.Groups[2].ToString() + "\" target=\"_blank\"><IMG border=0 src=\"images/url.gif\">" +
m.Groups[2].ToString() + "</A>");
}
#endregion
处[url=xxx][/url]标记#region 处[url=xxx][/url]标记
//处[url=xxx][/url]标记
r = new Regex(@"(\[url=([ \S\t]+)\])([ \S\t]*?)(\[\/url\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<A href=\"" + m.Groups[2].ToString() + "\" target=\"_blank\"><IMG border=0 src=\"images/url.gif\">" +
m.Groups[3].ToString() + "</A>");
}
#endregion
处[email][/email]标记#region 处[email][/email]标记
//处[email][/email]标记
r = new Regex(@"(\[email\])([ \S\t]*?)(\[\/email\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<A href=\"mailto:" + m.Groups[2].ToString() + "\" target=\"_blank\"><IMG border=0 src=\"images/email.gif\">" +
m.Groups[2].ToString() + "</A>");
}
#endregion
处[email=xxx][/email]标记#region 处[email=xxx][/email]标记
//处[email=xxx][/email]标记
r = new Regex(@"(\[email=([ \S\t]+)\])([ \S\t]*?)(\[\/email\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<A href=\"mailto:" + m.Groups[2].ToString() + "\" target=\"_blank\"><IMG border=0 src=\"images/email.gif\">" +
m.Groups[3].ToString() + "</A>");
}
#endregion
处[size=x][/size]标记#region 处[size=x][/size]标记
//处[size=x][/size]标记
r = new Regex(@"(\[size=([1-7])\])([ \S\t]*?)(\[\/size\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<FONT SIZE=" + m.Groups[2].ToString() + ">" +
m.Groups[3].ToString() + "</FONT>");
}
#endregion
处[color=x][/color]标记#region 处[color=x][/color]标记
//处[color=x][/color]标记
r = new Regex(@"(\[color=([\S]+)\])([ \S\t]*?)(\[\/color\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<FONT COLOR=" + m.Groups[2].ToString() + ">" +
m.Groups[3].ToString() + "</FONT>");
}
#endregion
处[font=x][/font]标记#region 处[font=x][/font]标记
//处[font=x][/font]标记
r = new Regex(@"(\[font=([\S]+)\])([ \S\t]*?)(\[\/font\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<FONT FACE=" + m.Groups[2].ToString() + ">" +
m.Groups[3].ToString() + "</FONT>");
}
#endregion
处理图片链接#region 处理图片链接
//处理图片链接
r = new Regex("\\[picture\\](\\d+?)\\[\\/picture\\]",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<A href=\"ShowImage.aspx?Type=ALL&Action=forumImage&ImageID=" + m.Groups[1].ToString() +
"\" target=\"_blank\"><IMG border=0 Title=\"点击打开新窗口查看\" src=\"ShowImage.aspx?Action=forumImage&ImageID=" + m.Groups[1].ToString() +
"\"></A>");
}
#endregion
处理[align=x][/align]#region 处理[align=x][/align]
//处理[align=x][/align]
r = new Regex(@"(\[align=([\S]+)\])([ \S\t]*?)(\[\/align\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<P align=" + m.Groups[2].ToString() + ">" +
m.Groups[3].ToString() + "</P>");
}
#endregion
处[H=x][/H]标记#region 处[H=x][/H]标记
//处[H=x][/H]标记
r = new Regex(@"(\[H=([1-6])\])([ \S\t]*?)(\[\/H\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<H" + m.Groups[2].ToString() + ">" +
m.Groups[3].ToString() + "</H" + m.Groups[2].ToString() + ">");
}
#endregion
处理[list=x][*][/list]#region 处理[list=x][*][/list]
//处理[list=x][*][/list]
r = new Regex(@"(\[list(=(A|a|I|i| ))?\]([ \S\t]*)\r\n)((\[\*\]([ \S\t]*\r\n))*?)(\[\/list\])",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
string strLI = m.Groups[5].ToString();
Regex rLI = new Regex(@"\[\*\]([ \S\t]*\r\n?)",RegexOptions.IgnoreCase);
Match mLI;
for (mLI = rLI.Match(strLI); mLI.Success; mLI = mLI.NextMatch())
{
strLI = strLI.Replace(mLI.Groups[0].ToString(),"<LI>" + mLI.Groups[1]);
}
sDetail = sDetail.Replace(m.Groups[0].ToString(),
"<UL TYPE=\"" + m.Groups[3].ToString() + "\"><B>" + m.Groups[4].ToString() + "</B>" +
strLI + "</UL>");
}
#endregion
处理换行#region 处理换行
//处理换行，在每个新行的前面添加两个全角空格
r = new Regex(@"(\r\n(( )| )+)(?<正文>\S+)",RegexOptions.IgnoreCase);
for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
{
sDetail = sDetail.Replace(m.Groups[0].ToString(),"<BR> " + m.Groups["正文"].ToString());
}
//处理换行，在每个新行的前面添加两个全角空格
sDetail = sDetail.Replace("\r\n","<BR>");
#endregion
return sDetail;
}
#endregion
}
}
原文地址：https://www.cnblogs.com/LCX/p/110246.html