using System;
using System.Text;
using System.Text.RegularExpressions;
namespace test1
{
     /// <summary>
     /// 功能：UBB代码
     /// 作者：Rexsp
     /// 日期：2004-4-6
     /// </summary>
     public class UBB
     {
         #region 构造函数
         public UBB()
         {
             //
             // TODO: 在此处添加构造函数逻辑
             //
         }
         #endregion
         #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;
             #region 处理空格
             sDetail = sDetail.Replace(" ","&nbsp;");
             #endregion
             #region html标记符
             sDetail = sDetail.Replace("<","&lt;");
             sDetail = sDetail.Replace(">","&gt;");
             #endregion
             #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
             #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
             #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
             #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
             #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
             #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
             #region 处[url][/url]标记
             //处[url][/url]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
             #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
             #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
             #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
             #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
             #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
             #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
             #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
             #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
             #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
             #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
             #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((&nbsp;)|　)+)(?<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
     }
}