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Re: when $$s =~ m/\G.../gc is too verbose

by ambrus (Abbot)
on Feb 03, 2006 at 15:48 UTC ( #527688=note: print w/replies, xml ) Need Help??

in reply to when $$s =~ m/\G.../gc is too verbose

You can also use a single regexp with all alternatives and \G and the g flag but without the c flag. Then you can decide which alternative mached by checking the definedness of $1 and other match variables.

I sometimes use that idiom instead of many regexps with a gc flag. A nice example is the glob_to_re function in cgrep (snapshot) (which is btw an improved version of my cgrep: Egrep clone with function name display). A simpler example is in Re: Logic trouble parsing a formatted text file into hashes of hashes (of hashes, etc.).

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