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Re: HTML tag extraction probs...

by benn (Vicar)
on Aug 07, 2003 at 13:56 UTC ( #281894=note: print w/replies, xml ) Need Help??

in reply to Global symbol probs...

The error means exactly what it're using $i in scrapTag without declaring it. There are fixes for your existing code, but I'd probably rewrite the sub simply as a map - something like...
@htmlLines = map {s/your_regex//ig;$_;} @htmlLines

There's no need for a sub here at all - if you want to do many 'scrapTags', then by all means declare one, but you'll maybe want to pass in your '@htmlLines', rather than relying on a global.

As for the regex...that's fine so long as your img tags don't have any ">" characters (say, <img src='next_page' alt='>'> <img src='last_page' alt='>>'>, which is something I tend to do a fair amount) - check out the many HTML parsing modules that are mentioned here 10 or 20 times a day :)

Cheers, Ben.

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