and a little bit messy -LW
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good chemistry is complicated, and a little bit messy -LW |
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Re: perl regex referencingby bruceb3 (Pilgrim) |
| on Sep 18, 2007 at 08:18 UTC ( [id://639575]=note: print w/replies, xml ) | Need Help?? |
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The back slash is used inside the match and the dollar sign is used outside of the match. In this case "inside the match" refers to (a-z)\1 because the text is being matched against this regex. The dollar 1 is not being matched against. It's part of the substitution.
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Seekers of Perl Wisdom
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