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Perl: the Markov chain saw

bgreenlee's scratchpad

by bgreenlee (Friar)
on Jul 13, 2004 at 09:07 UTC ( #373896=scratchpad: print w/replies, xml ) Need Help??

Searching Backwards

Want to search backwards through a string, but don't want to have to reverse the string first? I had a need to do this recently in a golf problem ("reverse" is just too damn long). If you don't mind destroying your string, use s///:
$foo = '1 a 2 b 3 c'; while($foo =~ s/(\d)[\D]*$//) { print $1; } __output__ 321
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