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Re: very quick link regex

by Thelonius (Priest)
on Aug 03, 2007 at 09:09 UTC ( #630469=note: print w/replies, xml ) Need Help??


in reply to very quick link regex

You have [a..z] where you should have [a-z]. You also have 'my' in front of $content2, which is wrong if you are trying to match a string which is already in $content2. If you are trying to match against $_ and put the results in $content2, you should write:
my $content2 = m#(yourregexhere)#i;
or, maybe clearer,
my $content2 = ($_ =~ m#(yourregexhere)#i);

The construct (.+)+ doesn't really make sense. Just .+ would be okay, but you have to worry about matching too much. One possibility is .+?, but that's not the most efficient code and you could still get false matches in some cases, such as if the source text was, e.g.:

http://www.page.com/files4/i/90c/93898.gif is not a .jpg file
You might want
m#(www\.page\.com/files\d+/[a-z]/\d\S+\.jpg)#i
or, if this is a real HTML link,
m#(www\.page\.com/files\d+/[a-z]/[^"']+\.jpg)#i

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