Extract attribute value from html element - regex

Question

Been struggling with this for a couple of hours now...
I have the following regex:
(?<=\bdata-video-id=""."">)(.*?)(title=.*?>)
The following input:
<div class="cameras">
<table class="results">
<colgroup>
<col class="col0">
<col class="col1">
</colgroup>
<thead>
<tr>
<th title="Name">
Name
</th>
<th title="Date">
Date
</th>
</tr>
</thead>
<tbody>
<tr data-video-id="1">
<td title="149 - Cam123">
149 - Cam123
</td>
<td title="Feb 18 2013">
Feb 18 2013
</td>
</tr>
<tr data-video-id="2">
<td title="150 - Cam456">
150 - Cam456
</td>
<td title="Feb 18 2013">
Feb 18 2013
</td>
</tr>
</tbody>
</table>
</div>
The regex outputs this:
<td title="149 - Cam123">
<td title="150 - Cam456">
But what I'd like to get is the contents of the title attribute of the 1st cell from every table row:
149 - Cam123
150 - Cam456
The number of rows may obviously vary but the number of columns is fixed.
Please help me fine tune the above regex.
Thanks
NOTE: The solution MUST be a regular expression. I do not have access to the code base therefore an HTML parser or any other kind of code intervention is not possible. The only way I can hook into the application is by injecting a different regex.

Answer 1

Based on the OP requirements that it MUST be a regex, then my suggestion would be to add a group wrapper to the inner title information:
(?<=\bdata-video-id=""."">).*?title="(.*?)">
Otherwise, the general solution is to not use a regex:
Why are you using a regex? The typical solution for this due to the complexities of the tags is to use an HTML parser
Here is a SO about this topic
Here is another even more popular response on using regex for XHTML which was pointed out by Jeff Atwood in this blogpost