C#实现HTML和UBB互相转换的方法

本文实例讲述了C#实现HTML和UBB互相转换的方法。分享给大家供大家参考。具体实现方法如下：

html转UBB的还不是很完美，有空修改，一些代码来自百度谷歌，如下所示：

private string DoHtmlToUBB(string _Html)
{

_Html = Regex.Replace(_Html, "<br[^>]*>", "\n");

_Html = Regex.Replace(_Html, @"<p[^>\/]*\/>", "\n");

_Html = Regex.Replace(_Html, "\\son[\\w]{3,16}\\s?=\\s*([\'\"]).+?\\1", "");

_Html = Regex.Replace(_Html, "<hr[^>]*>", "[hr]");

_Html = Regex.Replace(_Html, "<(\\/)?blockquote([^>]*)>", "[$1blockquote]");

_Html = Regex.Replace(_Html, "<img[^>]*smile=\"(\\d+)\"[^>]*>", "'[s:$1]");

_Html = Regex.Replace(_Html, "<img[^>]*src=[\'\"\\s]*([^\\s\'\"]+)[^>]*>", "");

_Html = Regex.Replace(_Html, "<a[^>]*href=[\'\"\\s]*([^\\s\'\"]*)[^>]*>(.+?)<\\/a>", "[url=$1]$2[/url]");

_Html = Regex.Replace(_Html, "(.+?)",@"\[b\]$1\[/b\]");

_Html = Regex.Replace(_Html, "<[^>]*?>", "");

_Html = Regex.Replace(_Html, "&", "&");

_Html = Regex.Replace(_Html, " ", " ");

_Html = Regex.Replace(_Html, "<", "<");

_Html = Regex.Replace(_Html, ">", ">");

return _Html;

}

public string ubbtohtml(string content) //ubb转html

{

content = Regex.Replace(content, @"\r\n", " ");

content = Regex.Replace(content, " ", " ");

content = Regex.Replace(content, @"\[b\](.+?)\[/b\]", "$1");

content = Regex.Replace(content, @"\[i\](.+?)\[/i\]", "$1");

content = Regex.Replace(content, @"\[u\](.+?)\[/u\]", "$1");

content = Regex.Replace(content, @"\[p\](.+?)\[/p\]", "$1");

content = Regex.Replace(content, @"\[align=left\](.+?)\[/align\]", "<align='left'>$1</align>");

content = Regex.Replace(content, @"\[align=center\](.+?)\[/align\]", "<align='center'>$1</align>");

content = Regex.Replace(content, @"\[align=right\](.+?)\[/align\]", "<align='right'>$1</align>");

content = Regex.Replace(content, @"\[url=(?<url>.+?)]\[/url]", "<a href='${url}' target=_blank>${url}</a>");

content = Regex.Replace(content, @"\[url=(?<url>.+?)](?<name>.+?)\[/url]", "<a href='${url}' target=_blank>${name}</a>");

content = Regex.Replace(content, @"\[quote](?<text>.+?)\[/quote]", "<div class="quote">${text}</div>");

content = Regex.Replace(content, @"\[img](?<img>.+?)\[/img]", "<img src='${img}' alt=''/>");

return content;

}