C#正则表达式题

Question

Can anybody help me to form a regular expression to search the following string:

<b>The</b> <b>brown</b> <b>fox</b> jumped over the <b>lazy</b> <b>dog</b>.

The expression should match <b>The</b> <b>brown</b> <b>fox</b> as one match then proceed to match <b>lazy</b> <b>dog</b> . In this example, the expression should return two matches only, thanks.

Answer 1

Is this what you're looking for?

Regex r = new Regex(@"<b>[^<]*</b>(?:\s*<b>[^<]*</b>)*");

String input = @"<b>The</b> <b>brown</b> <b>fox</b> jumped over the <b>lazy</b> <b>dog</b>.";
foreach (Match m in r.Matches(input))
{
  Console.WriteLine(m.Value);
}

output:

<b>The</b> <b>brown</b> <b>fox</b>
<b>lazy</b> <b>dog</b>

Answer 2

This would work with your specific example:

@"The brown fox|lazy dog"

Furthermore, if you need to match any more simple phrases, just append |the simple phrase to this pattern.

Answer 3

The brown fox|lazy dog

The above is the regex that would generate two matches from your given input.

Answer 4

RegEx really isn't suited to parsing HTML . A much better solution would be to use the Html Agility Pack