Re: Re: Re: Re: How do I match lines of UP TO 40 chars BUT NO MORE in a block of text?

WOW SAROQ! I think that finally did it! Thanks for all your help in this. As far as requests go, it is tough explaining things, and I know you gurus are excellent at responding quickly, that I get impatient. Sorry, learnt my lesson here.

Anyway, my boss is going to test it, and lets hope it goes well for her.

One quick question, I dont understand what the ?: at the beginning of the regex does. I took the comments out. What's the diff between these:

1. ($foo =~ /^(?:.{0,40}\n){0,4}$/
2. ($foo =~ /^(.{0,40}\n){0,4}$/ # note no ?:
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CHEERS MATE!
Robert

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Re: Re: Re: Re: Re: How do I match lines of UP TO 40 chars BUT NO MORE in a block of text? by sauoq (Abbot) on Sep 26, 2002 at 02:11 UTC
Without the `?:` the parens will capture the match into `$1`. You probably don't need to capture. Presumably, not capturing will give you slightly better performance, though it probably wouldn't be noticeable unless you were doing a whole lot of matching. Glad I could help. -sauoq "My two cents aren't worth a dime.";	[reply] [d/l] [select]
Re: Re: Re: Re: Re: Re: How do I match lines of UP TO 40 chars BUT NO MORE in a block of text? by kleinbiker7 (Sexton) on Sep 26, 2002 at 15:06 UTC
Well, the boss liked it! Thanks again Sauoq! Robert	[reply]