Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses

Re: repeated characters in regular expressions

by Loops (Curate)
on Aug 01, 2013 at 07:57 UTC ( #1047385=note: print w/ replies, xml ) Need Help??

in reply to repeated characters in regular expressions

The below relies on embedding Perl code in the substitution portion of the regex (/e) and could also be a little more terse if you can guarantee a newer version of Perl, where the /r parameter of regex is available.

sub translate { my ($n, $m, $_) = @_; $n--; s/(\w)\1{$n}/$1 x $m/ge; $_; } print translate(4,1,'p8888er9999l'); # -> p8er9l print translate(1,3,'monks'); # -> mmmooonnnkkksss

Comment on Re: repeated characters in regular expressions
Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1047385]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others scrutinizing the Monastery: (6)
As of 2015-11-27 21:27 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (732 votes), past polls