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Re: Indexing multiplicate firstnames with regex

by whakka (Hermit)
on May 27, 2009 at 15:54 UTC ( #766456=note: print w/ replies, xml ) Need Help??

in reply to Indexing multiplicate firstnames with regex

This works (no regexes necessary):
#!/usr/bin/perl use strict; use warnings; my %first; while ( <DATA> ) { chomp; my ($fn,$ln) = split; push @{$first{$fn}}, $ln; } for my $fn ( keys %first ) { my @ln = @{$first{$fn}}; if ( @ln == 1 ) { print $fn,' ',$ln[0],"\n"; } else { my $c = 1; print $fn,$c++,' ',$_,"\n" for @ln; } } __DATA__ George Fortran Jessi Heavens Bill Clinton Barack Obama Bill Gates Steve Jobs Bill Green George Bush
This doesn't preserve the ordering, though.

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