C#转换UBB的代码

最新推荐文章于 2021-05-30 21:05:40 发布

原创最新推荐文章于 2021-05-30 21:05:40 发布 · 624 阅读

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文章标签：

#c# #string #filter #border #object #behavior

本文介绍了一种将 UBBCode 转换为 HTML 的方法，并提供了一个 C# 示例代码实现。该方法能帮助开发者将论坛等平台上的文本格式转换为网页上可用的 HTML 格式。

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因为,老是把自己学的东西忘记了,因此把学到的一些东西记下来.虽然很简单但也是一种学习方式,加深认识

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text.RegularExpressions;
namespace web
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        private string HTMLEncode(string str)
        {
            str = str.Replace(">", ">");
            str = str.Replace("<", "<");
            char ch;
            ch = (char)32;
            str = str.Replace(ch.ToString(), " ");
            ch = (char)34;
            str = str.Replace(ch.ToString(), "''");
            ch = (char)39;
            str = str.Replace(ch.ToString(), "'");
            ch = (char)13;
            str = str.Replace(ch.ToString(), "");
            ch = (char)10;
            str = str.Replace(ch.ToString(), "<BR>");
            return str;
        }

        public string Ubbcode(string chr)
        {
            if (chr == null)
                return "";
            chr = chr.Replace("<", "<");
            chr = chr.Replace(">", ">");
            chr = chr.Replace("/n", "<br>");
            chr = Regex.Replace(chr, @"<script(?<x>[^/>]*)>(?<y>[^/>]*)/</script/>", @"<script$1>$2</script>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[url=(?<x>[^/]]*)/](?<y>[^/]]*)/[/url/]", @"<a href=$1 target=_blank>$2</a>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[url/](?<x>[^/]]*)/[/url/]", @"<a href=$1 target=_blank>$1</a>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[email=(?<x>[^/]]*)/](?<y>[^/]]*)/[/email/]", @"<a href=$1>$2</a>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[email/](?<x>[^/]]*)/[/email/]", @"<a href=$1>$1</a>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[flash](?<x>[^/]]*)/[/flash]", @"<OBJECT codeBase=http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=4,0,2,0 classid=clsid:D27CDB6E-AE6D-11cf-96B8-444553540000 width=500 height=400><PARAM NAME=movie VALUE=""$1""><PARAM NAME=quality VALUE=high><embed src=""$1"" quality=high pluginspage=http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash type=application/x-shockwave-flash width=500 height=400>$1</embed></OBJECT>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[img](?<x>[^/]]*)/[/img]", @"<IMG SRC=""$1"" border=0>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[color=(?<x>[^/]]*)/](?<y>[^/]]*)/[/color/]", @"<font color=$1>$2</font>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[face=(?<x>[^/]]*)/](?<y>[^/]]*)/[/face/]", @"<font face=$1>$2</font>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[size=1/](?<x>[^/]]*)/[/size/]", @"<font size=1>$1</font>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[size=2/](?<x>[^/]]*)/[/size/]", @"<font size=2>$1</font>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[size=3/](?<x>[^/]]*)/[/size/]", @"<font size=3>$1</font>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[size=4/](?<x>[^/]]*)/[/size/]", @"<font size=4>$1</font>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[align=(?<x>[^/]]*)/](?<y>[^/]]*)/[/align/]", @"<align=$1>$2</align>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[fly](?<x>[^/]]*)/[/fly]", @"<marquee width=90% behavior=alternate scrollamount=3>$1</marquee>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[move](?<x>[^/]]*)/[/move]", @"<marquee scrollamount=3>$1</marquee>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[glow=(?<x>[^/]]*),(?<y>[^/]]*),(?<z>[^/]]*)/](?<w>[^/]]*)/[/glow/]", @"<table width=$1 style=filter:glow(color=$2, strength=$3)>$4</table>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[shadow=(?<x>[^/]]*),(?<y>[^/]]*),(?<z>[^/]]*)/](?<w>[^/]]*)/[/shadow/]", @"<table width=$1 style=filter:shadow(color=$2, strength=$3)>$4</table>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[b/](?<x>[^/]]*)/[/b/]", @"<b>$1</b>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[i/](?<x>[^/]]*)/[/i/]", @"<i>$1</i>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[u/](?<x>[^/]]*)/[/u/]", @"<u>$1</u>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[code/](?<x>[^/]]*)/[/code/]", @"<pre id=code><font size=1 face=Verdana, Arial id=code>$1</font id=code></pre id=code>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[list/](?<x>[^/]]*)/[/list/]", @"<ul>$1</ul>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[list=1/](?<x>[^/]]*)/[/list/]", @"<ol type=1>$1</ol id=1>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[list=a/](?<x>[^/]]*)/[/list/]", @"<ol type=a>$1</ol id=a>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[/*/](?<x>[^/]]*)/[//*/]", @"<li>$1</li>", RegexOptions.IgnoreCase);
            chr = Regex.Replace(chr, @"/[quote](?<x>.*)/[/quote]", @"<center>-- 以下是引用 --<table border=1 width=80% cellpadding=10 cellspacing=0 ><tr><td>$1</td></tr></table></center>", RegexOptions.IgnoreCase);
            return (chr);
        }
    }
}