Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

Re: Parens mess up regex substitute

by Anonymous Monk
on Jan 26, 2012 at 04:12 UTC ( #950020=note: print w/replies, xml ) Need Help??


in reply to Parens mess up regex substitute

Because in perl's regular expression language parens have meaning, they're meta characters, specifically, they're called capturing parens. Anything matched in capturing parens, is stored in a number variable ($1,$2 ...)

see perlre, perlretut

To see how the regex engine does matching,  use re 'debug';

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://950020]
help
Chatterbox?
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others cooling their heels in the Monastery: (8)
As of 2018-01-18 15:01 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    How did you see in the new year?










    Results (212 votes). Check out past polls.

    Notices?