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Is $string=~/((.)\2*)/g what you're looking for?

#! /usr/bin/perl -w use Data::Dumper; use strict; my $string =' aaaa bbbbccccccccbbbb aaaabbbbbcdddddddddddddddd +dddd'; my $pos=0; my @triples=(); my @reps=$string=~/((.)\2*)/g; while (@reps) { my $hits=shift @reps; my $char=shift @reps; push @triples, [$char, $pos, length $hits]; $pos+=length $hits; } $Data::Dumper::Indent=0; print Dumper @triples; __DATA__ $VAR1 = [' ',0,4];$VAR2 = ['a','4',4];$VAR3 = [' ','8',4];$VAR4 = ['b' +,'12',4];$VAR5 = ['c','16',8];$VAR6 = ['b','24',4];$VAR7 = [' ','28', +3];$VAR8 = ['a','31',4];$VAR9 = ['b','35',5];$VAR10 = ['c','40',1];$V +AR11 = ['d','41',20];

Memo to self: must learn to use Data::Dumper properly ;-)

Too stupid to live.
Too stubborn to die.

In reply to Re: Efficient run determination. by tommyw
in thread Efficient run determination. by BrowserUk

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