#!/usr/bin/perl  -t -w

use strict;

sub dosplitMe () {
        my ($x,$separator,$justSplitMe) = @_;
        if ($justSplitMe) {
                if ($x =~ m /(.*)?$separator(.*)/) {
                        return ($1,$2);
                }
        } else {
                # there might be stuff before first integer...
                if ($x =~ m/(\D+)?(\d+)$separator(\d+)/) {
                        return ($1.$2 , $1.$3);
                }
        }
}

my $num1 = 123.456;
my $num2 = -123.456;
my $num3 = "abc123,123";

my @a;
@a = &dosplitMe($num1,'\.',1);   print ("1: $a[0] - $a[1] \n");
@a = &dosplitMe($num2,'\.',1);   print ("2: $a[0] - $a[1] \n");
@a = &dosplitMe($num2,'\.',0);   print ("3: $a[0] - $a[1] \n");
@a = &dosplitMe($num3,',', 1);   print ("4: $a[0] - $a[1] \n");
@a = &dosplitMe($num3,',', 0);   print ("5: $a[0] - $a[1] \n");