searching for a specific number of characters

pccode has asked for the wisdom of the Perl Monks concerning the following question:

How can I use s/// to search for a specific number of characters?

s/(\x28\x00\x00.*?[25])//e;
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Obviously the code above doesn't work. So how can I search for \x28\x00\x00 and then add the next 25 characters onto the search string? Thanks.

Comment on searching for a specific number of characters Download Code

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Re: searching for a specific number of characters by diotalevi (Canon) on May 19, 2005 at 06:34 UTC
Use the {...} braces to quantify. I used /s to make sure the . I used would also match \n characters (it doesn't, normally). I also removed your /e because it was meaningless and dangerous. `s/(\x28\0\0.{26})//s`	[reply] [d/l]
Re^2: searching for a specific number of characters by pccode (Novice) on May 19, 2005 at 06:40 UTC
Perfect. Thanks for your help.	[reply]
Re: searching for a specific number of characters by polettix (Vicar) on May 19, 2005 at 11:05 UTC
Just to give you the fishing rod, you can peruse perlre for all you want to know about regexes in Perl. And here's a free fish about quantifiers: The following standard quantifiers are recognized: * Match 0 or more times + Match 1 or more times ? Match 1 or 0 times {n} Match exactly n times {n,} Match at least n times {n,m} Match at least n but not more than m times Note that n can be 0 in the last one. Enjoy your meal :) Flavio (perl -e 'print(scalar(reverse("\nti.xittelop\@oivalf")))') Don't fool yourself.	[reply]