正则表达式与vb.net

Question

I have the following html contained in a string.

<tr>
<td>Hello</td>
</tr>
<tr>
<td>World</td>
</tr>
<tr>
<td>lets all smile</td>
</tr>

I would like to use RegEx to find the <tr></tr> that contains the text "World". The difficulty is that there might be other <td> around the one that contains the search text. So we need to be able to search for the <tr> and </tr> nearest to the search text with any text between the <tr> and the search text.

The result of the match would be.

<tr>
<td>World</td>
</tr>

I'm using vb.net by the way.

Could anyone help at all?

Thanks

Richard

Answer 1

First of all, it should be pointed out that you want to use the HTML Agility Pack , and not regex, for this kind of things.

But other than that, a pattern could look like:

(<tr>.*?World.*?</tr>)

It's a rather lousy pattern, but then again, use the agility pack.