In a hurry: URL matching error! ! ! ! ! ! ! ! (Online etc.)

superwood

There is an html document like this:
<a href=""> </a>
<a href="http://classad.163.com/html/area/110/index.html">Shaan</a>
<a href="http://classad.163.com/html/area/341/index.html">Ning</a>
<a href="http://classad.163.com/html/area/577/index.html">Hidden</a>
<a href="http://classad.163.com/html/area/325/index.html">Yichang</a>
<a href="http://classad.163.com/html/area/31/index.html">Zhengzhou</a>
<a href=""> </a>
<a href="http://classad.163.com/html/area/254/index.html">Nantong</a>
<a href=""> </a>
<a href="http://classad.163.com/html/area/313/index.html">Jingmen</a>
<a href=""> </a>
<a href="http://classad.163.com/html/area/81/index.html">Rizhao</a>
<a href="http://classad.163.com/html/area/36/index.html">Luoyang</a>
<a href="http://classad.163.com/html/area/393/index.html"> Chaoyang District</a>
<a href=""> </a>
Use regular expressions:
<a\s+href\s*=\s*["|']?(?<uri>[^'"> ]*)["|']?[^<>]*>\s*(<[^<>]+ >)*(?<title>[^<>]*)(<[^<>]+>)*\s*</a>
It can match exactly, that is to say it can match 15 results (I have run it on the test tool); but the code I wrote can only match 11, my code is:
string htmlRegexEpression=@"<a\s+href\s*=\s*[""|']?(?<uri>[^'""> ]*)[""|']?[^<>]*>\s* (<[^<>]+>)*(?<title>[^<>]*)(<[^<>]+>)*\s*</a>";
Regex linksExpression =new Regex( htmlRegexEpression,
RegexOptions.Multiline | RegexOptions.IgnoreCase );
MatchCollection Matchs = linksExpression.Matches(PageHtmlContent);

Is the htmlRegexEpression converted incorrectly? ? Please master first aid! ! ! ! !
Infinite thanks! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

mohicanhj

I tried it, and 15 of them can be matched. This is the test code I used
MatchCollection mc=Regex.Matches(yourStr,@"<a\s+href\s*=\s*[""|']?(?<uri>[^'""> ]*)[""|']?[^< >]*>\s*(<[^<>]+>)*(?<title>[^<>]*)(<[^<>]+>)*\s*</a>");
foreach(Match m in mc)
{
    richTextBox1.Text +=m.Groups[0].Value+"\n";
}

I’m going to bed, I didn’t read it too carefully, but it shouldn’t be as troublesome as you wrote. Let’s read it tomorrow.

mohicanhj

After looking at it again, the code you gave should be no problem, you have to look at the processing code after you take out the Matchs, if you are right uri
And title for processing, these two items are all zero-length strings in <a href=""> </a>, but the result obtained in this way should be 10 instead of 11, or Give your processing code