Use a translation table (hash): 

use strict;
use warnings;

my $string="A111B111A111B111";
my $yes_or_no="no";
my %decision = ( A => 'yes', B=> 'no' );

for (split //, $string ) {
  $yes_or_no = $decision{$_} if exists $decision{$_};
  print "$_ ($yes_or_no)\n";
}

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In reply to Re: Change variable multiple times within a single string? by hdb
in thread Change variable multiple times within a single string? by JTomb

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