C4/Utils.pm

   1 package C4::Utils;
   2
   3 # Useful code I didn't feel like duplicating all over the place.
   4 #
   5
   6 use strict;
   7 use warnings;
   8 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $debug);
   9
  10 BEGIN {
  11         require Exporter;
  12         $VERSION = 1.00;        # set the version for version checking
  13         $debug = $ENV{DEBUG} || 0;
  14         @ISA    = qw(Exporter);
  15         @EXPORT_OK = qw(&maxwidth &hashdump);
  16         %EXPORT_TAGS = ( all => [qw(&maxwidth &hashdump)], );
  17 }
  18
  19
  20 sub maxwidth (@) {
  21         (@_) or return 0;
  22         return (sort {$a <=> $b} map {length} @_)[-1];
  23 }
  24
  25 sub hashdump ($$) {
  26         my $pre = shift;
  27         my $val  = shift;
  28         if (ref($val) =~ /HASH/) {
  29                 print "$pre = HASH w/ " . scalar(keys %$val) . " keys.\n";
  30                 my $w2 = maxwidth(keys %$val);
  31                 foreach (sort keys %$val) {
  32                         &hashdump($pre . '->{' . sprintf('%' . $w2 .'s', $_) . '}', $val->{$_});
  33                 }
  34                 print "\n";
  35         } elsif (ref($val) =~ /ARRAY/) {
  36                 print "$pre = ARRAY w/ " . scalar(@$val) . " members.\n";
  37                 my $w2 = maxwidth(@$val);
  38                 foreach (@$val) {
  39                         &hashdump($pre . '->{' . sprintf('%' . $w2 .'s', $_) . '}', $_);
  40                 }
  41                 print "\n";
  42         } else {
  43                 print "$pre = $val\n";
  44         }
  45 }
  46
  47 1;
  48 __END__