Split the alpha/numeric using a regex and build a hash of arrays using the alpha part as the keys

#!perl
use strict;
my @in = qw(
CC1180 B130  A250 Z9
B1105  B1225 B2480
C1180  C1600 D1180
D130   D250  e1180
eF855  EF855 Ef855 E975 ERR 123);

my %out = ();
for (@in){
  if (/^([A-Za-z]+)(\d+)$/){
    # build hash of arrays
    # with alpha part uppercase:original as key
    push @{$out{join ':',uc $1,$1}},$2;
  } else {
    warn "Input data error $_";
  }
}

for my $x (sort keys %out){
  my @x = split ':',$x; # split uc from original
  for my $y (sort {$a <=> $b}@{$out{$x}}){
    print "$x[1]$y\n";
  }
}

[download]
poj
update : moved split

In reply to Re: Data with Letter(s) & Number sort query by poj
in thread Data with Letter(s) & Number sort query by merrymonk

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