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Re: Search file for certain lines

by Eily (Parson)
on Sep 23, 2013 at 09:49 UTC ( #1055258=note: print w/replies, xml ) Need Help??

in reply to Search file for certain lines

It would be easier to give you advice if you told us what you already know and thought of. Right now I'll just try and guess what I should tell you and what you already know.

Your conditions on the lines sound like a job for regular expressions. And there kind of is a "from .. until" operator in Perl, which is the flip flop operator, which would allow you to do something like (check the next keyword by the way) :

while(<INPUT>) { next unless /^h/ .. /^h/; # stop processing the line unless we are b +etween two lines starting with h somecode(); }
Which is nice and short, but not well known and understood, so if it looks to hard to understand to you, or if there probably will be a lot of people reading your code, you could use classic control structures : if, else, unless.

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[Corion]: Discipulus: Ah, so he's the one getting almost drowned all the time - waterpolo certainly is no sport for me ;)
[karlgoethebier]: Corion: buy enough coke and popcorn...
[marto]: Corion the cinema is a lot more expensive than I remember :P
Discipulus hates the smell of popcorn at cinemas..
[Corion]: marto: Yeah, most of the time, I prefer to watch stuff at home, where we can sit on the couch, order pizza and pause the movie. But for kids,...
[Corion]: ... I think the "cinema experience" is something of its own. But certainly, bringing an USB stick home is much easier ;-D

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