What Perl variables are used for the positions of the start and end of last successful regex match?
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7Let me look that up in the manual for you... – alexis Mar 29 '12 at 21:35
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3http://perldoc.perl.org/perlvar.html – TLP Mar 29 '12 at 21:39
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This is the first couple of pages of _Mastering Perl_ :) – brian d foy Mar 29 '12 at 22:36
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It's not like I don't know what's in the manual. Why do you think I tagged it perlvar? And even knew about its existence. I had just forgotten. I am a C programmer, not Perl. Geez guys this site really is lame. Unless I am talking about some arcane thing people downvote... – unixman83 Mar 30 '12 at 04:25
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If you can't run 'man' on Unix when you forget things, then you should probably choose a nick other than 'unixman'. – runrig Mar 30 '12 at 18:15
1 Answers
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As the perlvar man-page explains:
$+[0]is the offset into the string of the end of the entire [last successful] match. This is the same value as what theposfunction returns when called on the variable that was matched against.
$-[0]is the offset of the start of the last successful match.
