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Re: repeated characters in regular expressions

by Loops (Deacon)
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

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