in reply to Re^2: multi-line regexp
in thread multi-line regexp

jeanluca '?:' is used in regex grouping to avoid storing the matched string in the system variables like $1, $2 etc. '?!' is nothing but negative lookahead condition. You take a look at the perlre.

Thanks in advance

Prasad

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Re^4: multi-line regexp
by blazar (Canon) on Dec 22, 2005 at 09:38 UTC
    Right! Except that I wouldn't call them "system variables". How 'bout "numbered match variables" instead?