I have made a delegate to process some html code. But I can only match the first matching. But the Match handler won't proceed. It keeps looping at the first match. Can anyone tell me why? But why I move the match while loop outside the delegate, everything is OK.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;
namespace migration
{
class Program
{
static void Main(string[] args)
{
string input = "<a class=\"normal\" href=\"http://msdn.microsoft.com/\" title=\"Home\">Home</a><a class=\"active\" href=\"http://msdn.microsoft.com/library/default.aspx\" title=\"Library\">Library</a><a class=\"normal\" href=\"http://msdn.microsoft.com/bb188199\" title=\"Learn\">Learn</a><a class=\"normal\" href=\"http://code.msdn.microsoft.com/\" title=\"Samples\">Samples</a><a class=\"normal\" href=\"http://msdn.microsoft.com/aa570309\" title=\"Downloads\">Downloads</a><a class=\"normal\" href=\"http://msdn.microsoft.com/hh361695\" title=\"Support\">Support</a><a class=\"normal\" href=\"http://msdn.microsoft.com/aa497440\" title=\"Community\">Community</a><a class=\"normal\" href=\"http://social.msdn.microsoft.com/forums/en-us/categories\" title=\"Forums\">Forums</a>";
HTMLStringWalkThrough(input, "<a.+?</a>", "", PrintTest);
}
public static string HTMLStringWalkThrough(string HTMLString, string pattern, string replacement, HTMLStringProcessDelegate p)
{
StringBuilder sb = new StringBuilder();
Match m = Regex.Match(HTMLString, pattern);
while (m.Success)
{
string temp = m.Value;
p(temp, replacement);
m.NextMatch();
}
return sb.ToString();
}
public delegate void HTMLStringProcessDelegate(string input, string replacement);
static void PrintTest(string tag, string replacement)
{
Console.WriteLine(tag);
}
}
}
//output:
//<a class=\"normal\" href=\"http://msdn.microsoft.com/\" title=\"Home\">Home</a>
//<a class=\"normal\" href=\"http://msdn.microsoft.com/\" title=\"Home\">Home</a>
//<a class=\"normal\" href=\"http://msdn.microsoft.com/\" title=\"Home\">Home</a>
//<a class=\"normal\" href=\"http://msdn.microsoft.com/\" title=\"Home\">Home</a>
//<a class=\"normal\" href=\"http://msdn.microsoft.com/\" title=\"Home\">Home</a>
//<a class=\"normal\" href=\"http://msdn.microsoft.com/\" title=\"Home\">Home</a>
//<a class=\"normal\" href=\"http://msdn.microsoft.com/\" title=\"Home\">Home</a>
//.........