Greetings PMs,

I have a series of strings which I wish to cleave on a given identifier ('X') so I am using the split function.
However I can not determine how to get the positions of the extracted substrings:

#! /usr/bin/perl -w
use strict;

my @genes;
my $screen = "ATCGATCGXXXXXATCGATXXXACTGCTACGGTACXXXAATTATXGCGCGXXT";

if ($screen =~ /X/) {

    @genes = split /X+/, $screen;
    my $genecounter = @genes;
    print "Number of components  = $genecounter\n\n";

}

[download]
Essentially what I wish to obtain is the starting position for each member of the @genes array within the original $screen variable.

Sometimes the members of the @gene array are identical to eachother, so I'm not sure how to utilize the substr function.
Many thanks for any tips!

In reply to Split Function - Positions by MiamiGenome

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