The following seems to do what you want. Not sure if this is the most efficient approach though.


use strict;
use warnings;
use Data::Dumper;

my (@array, $iIndex, $thisValue, $lastValue, @out);

@array         = qw(x x y z z z);
@out        = (0);
$lastValue     = $array[0];

for ($iIndex = 0; $iIndex <= $#array; $iIndex++) {

    $thisValue = $array[$iIndex];
    
    if ($thisValue ne $lastValue) {
        push @out, ($iIndex - 1, $iIndex);
        $lastValue = $thisValue;
    }

}

push @out, $#array;

print Dumper(\@out);

[download]

Regards,
Dom.

In reply to Re: Grabbing slices by dbush
in thread Grabbing slices by Evanovich

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