解析得到的代码能通过XHTML1.0STRICT验证;
包含了标题,链接,字体,对齐,图片,引用,列表等方面的功能.
Ubb.ReadMe.htm
UBB代码说明
标题
[h1]标题一[/h1]标题一
[h2]标题二[/h2]标题二
[h1]标题三[/h1]标题三
[h4]标题四[/h4]标题四
[h5]标题五[/h5]标题五
[h6]标题六[/h6]标题六
链接
[url]piled|RegexOptions.Singleline;
///<summary>
///解析Ubb代码为Html代码
///</summary>
///<paramname="ubb">Ubb代码</param>
///<returns>解析得到的Html代码</returns>
publicstaticstringDecode(stringubb)
{
if(string.IsNullOrEmpty(ubb))
returnnull;
stringresult=ubb;
result=HttpUtility.HtmlEncode(result);
result=DecodeStyle(result);
result=DecodeFont(result);
result=DecodeColor(result);
result=DecodeImage(result);
result=DecodeLinks(result);
result=DecodeQuote(result);
result=DecodeAlign(result);
result=DecodeList(result);
result=DecodeHeading(result);
result=DecodeBlank(result);
returnresult;
}
///<summary>
///解析Ubb代码为Html代码,所有的链接为rel="nofollow"
///</summary>
///<paramname="ubb">Ubb代码</param>
///<returns>解析得到的Html代码</returns>
publicstaticstringDecodeNoFollow(stringubb)
{
if(string.IsNullOrEmpty(ubb))
returnnull;
stringresult=ubb;
result=HttpUtility.HtmlEncode(result);
result=DecodeStyle(result);
result=DecodeFont(result);
result=DecodeColor(result);
result=DecodeImage(result);
result=DecodeLinksNoFollow(result);
result=DecodeQuote(result);
result=DecodeAlign(result);
result=DecodeList(result);
result=DecodeHeading(result);
result=DecodeBlank(result);
returnresult;
}
privatestaticstringDecodeHeading(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"\[h(\d)\](.*?)\[/h\1\]","<h$1>$2</h$1>",options);
returnresult;
}
privatestaticstringDecodeList(stringubb)
{
stringsListFormat="<olstyle=\"list-style:{0};\">$1</ol>";
stringresult=ubb;
//Lists
result=Regex.Replace(result,@"\[\*\]([^\[]*)","<li>$1</li>",options);
result=Regex.Replace(result,@"\[list\]\s*(.*?)\[/list\]","<ul>$1</ul>",options);
result=Regex.Replace(result,@"\[list=1\]\s*(.*?)\[/list\]",string.Format(sListFormat,"decimal"),options);
result=Regex.Replace(result,@"\[list=i\]\s*(.*?)\[/list\]",string.Format(sListFormat,"lower-roman"),options);
result=Regex.Replace(result,@"\[list=I\]\s*(.*?)\[/list\]",string.Format(sListFormat,"upper-roman"),options);
result=Regex.Replace(result,@"\[list=a\]\s*(.*?)\[/list\]",string.Format(sListFormat,"lower-alpha"),options);
result=Regex.Replace(result,@"\[list=A\]\s*(.*?)\[/list\]",string.Format(sListFormat,"upper-alpha"),options);
returnresult;
}
privatestaticstringDecodeBlank(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"(?<=)|(?=)"," ",options);
result=Regex.Replace(result,@"\r\n","<br/>");
string[]blockTags={"h[1-6]","li","list","div","p","ul"};
//clearbrbeforeblocktags(startorend)
foreach(stringtaginblockTags)
{
Regexr=newRegex("<br/>(<"+tag+")",options);
result=r.Replace(result,"$1");
r=newRegex("<br/>(</"+tag+")",options);
result=r.Replace(result,"$1");
}
returnresult;
}
privatestaticstringDecodeAlign(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"\[left\](.*?)\[/left\]","<divstyle=\"text-align:left\">$1</div>",options);
result=Regex.Replace(result,@"\[right\](.*?)\[/right\]","<divstyle=\"text-align:right\">$1</div>",options);
result=Regex.Replace(result,@"\[center\](.*?)\[/center\]","<divstyle=\"text-align:center\">$1</div>",options);
returnresult;
}
privatestaticstringDecodeQuote(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"\[quote\]","<blockquote><div>",options);
result=Regex.Replace(result,@"\[/quote\]","</div></blockquote>",options);
returnresult;
}
privatestaticstringDecodeFont(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"\[size=([-\w]+)\](.*?)\[/size\]","<spanstyle=\"font-size:$1\">$2</span>",options);
result=Regex.Replace(result,@"\[font=(.*?)\](.*?)\[/font\]","<spanstyle=\"font-family:$1\">$2</span>",options);
returnresult;
}
privatestaticstringDecodeLinks(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"\[url\]www\.(.*?)\[/url\]","<ahref=\"http://www.$1\">$1</a>",options);
result=Regex.Replace(result,@"\[url\](.*?)\[/url\]","<ahref=\"$1\">$1</a>",options);
result=Regex.Replace(result,@"\[url=(.*?)\](.*?)\[/url\]","<ahref=\"$1\"title=\"$2\">$2</a>",options);
result=Regex.Replace(result,@"\[email\](.*?)\[/email\]","<ahref=\"mailto:$1\">$1</a>",options);
returnresult;
}
privatestaticstringDecodeLinksNoFollow(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"\[url\]www\.(.*?)\[/url\]","<arel=\"nofollow\"href=\"http://www.$1\">$1</a>",options);
result=Regex.Replace(result,@"\[url\](.*?)\[/url\]","<arel=\"nofollow\"href=\"$1\">$1</a>",options);
result=Regex.Replace(result,@"\[url=(.*?)\](.*?)\[/url\]","<arel=\"nofollow\"href=\"$1\"title=\"$2\">$2</a>",options);
result=Regex.Replace(result,@"\[email\](.*?)\[/email\]","<ahref=\"mailto:$1\">$1</a>",options);
returnresult;
}
privatestaticstringDecodeImage(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"\[hr\]","<hr/>",options);
result=Regex.Replace(result,@"\[img\](.+?)\[/img\]","<imgsrc=\"$1\"alt=\"\"/>",options);
result=Regex.Replace(result,@"\[img=(\d+)x(\d+)\](.+?)\[/img\]","<imgsrc=\"$3\"style=\"width:$1px;height:$2px\"alt=\"\"/>",options);
returnresult;
}
privatestaticstringDecodeColor(stringubb)
{
stringresult=ubb;
result=Regex.Replace(result,@"\[color=(#?\w+?)\](.+?)\[/color\]","<spanstyle=\"color:$1\">$2</span>",options);
returnresult;
}
privatestaticstringDecodeStyle(stringubb)
{
stringresult=ubb;
//wedon'tneedthisforperfomanceandotherconsideration:
//(<table[^>]*>(?><table[^>]*>(?<Depth>)|</table>(?<-Depth>)|.)+(?(Depth)(?!))</table>)
result=Regex.Replace(result,@"\[[b]\](.*?)\[/[b]\]","<strong>$1</strong>",options);
result=Regex.Replace(result,@"\[[u]\](.*?)\[/[u]\]","<spanstyle=\"text-decoration:underline\">$1</span>",options);
result=Regex.Replace(result,@"\[[i]\](.*?)\[/[i]\]","<i>$1</i>",options);
returnresult;
}
}
}
