[Mono-docs-list] Web browser hyperlink cleanup

[Fawad Halim]

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Hi,
    Attached is a patch that makes monodoc.ashx fix the <a> links on the 
server side instead of using javascript on the client side.

Advantages:
* Will (hopefully) make the docs Google-able (spiders don't do javascript).
* It should also make it possible to use htdig or swish-e to index and 
search the docs.
* Documents are browseable from lynx now
* prefix munging no longer neccesary for non-IE browsers.

Disadvanges:
* More processing on server.
* Uses regex instead of DOM.

Regards
-fawad

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Index: browser/web/monodoc.ashx
===================================================================
RCS file: /mono/monodoc/browser/web/monodoc.ashx,v
retrieving revision 1.18
diff -r1.18 monodoc.ashx
23a24
> using System.Text.RegularExpressions;
197a199
> 		string requestPath;
207,214d208
< 	objs = document.getElementsByTagName('a');
< 	for (i = 0; i < objs.length; i++) {
< 		e = objs [i];
< 		if (e.href == null) continue;
< 		
< 		objs[i].href = makeLink (objs[i].href);
< 	}
< 	
252c246,249
< 			ctx.Response.Write (content);
---
> 			// Set up object variable, as it's required by the MakeLink delegate
> 			requestPath=ctx.Request.Path;
> 			string content_changed=MakeLinks(content);
> 			ctx.Response.Write (content_changed);
257a255,282
> 
> 		string MakeLinks(string content)
> 		{
> 			MatchEvaluator linkUpdater=new MatchEvaluator(MakeLink);
> 			if(content.Trim().Length<1|| content==null)
> 				return content;
> 			try
> 			{
> 				string updatedContents=Regex.Replace(content,"(<a[^>]*href=['\"])([^'\"]+)(['\"][^>]*>)", linkUpdater);
> 				return(updatedContents);
> 			}
> 			catch(Exception e)
> 			{
> 				return content+"!<!--Exception:"+e.Message+"-->";
> 			}
> 		}
> 		
> 		// Delegate to be called from MakeLinks for fixing <a> tag
> 		string MakeLink(Match theMatch)
> 		{
> 			string updatedLink=String.Format("{0}{1}?link={2}{3}",
> 				theMatch.Groups[1].ToString(),
> 				requestPath, 
> 				HttpUtility.UrlEncode(theMatch.Groups[2].ToString().Replace("file://","")),
> 				theMatch.Groups[3].ToString());
> 			return updatedLink;
> 		}
> 		

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