sortxml

   1 #!/usr/bin/env perl
   2
   3 #=======================================================================
   4 # sortxml
   5 # File ID: 76c6f804-1463-11de-aecb-000475e441b9
   6 #
   7 # Sorts the X elements in an XML file.
   8 #
   9 # Character set: UTF-8
  10 # ©opyleft 2009– Øyvind A. Holm <sunny@sunbase.org>
  11 # License: GNU General Public License version 2 or later, see end of
  12 # file for legal stuff.
  13 #=======================================================================
  14
  15 use strict;
  16 use warnings;
  17 use Getopt::Long;
  18
  19 local $| = 1;
  20
  21 our %Opt = (
  22
  23     'help' => 0,
  24     'quiet' => 0,
  25     'reverse' => 0,
  26     'sort' => '',
  27     'unique' => 0,
  28     'verbose' => 0,
  29     'version' => 0,
  30
  31 );
  32
  33 our $progname = $0;
  34 $progname =~ s/^.*\/(.*?)$/$1/;
  35 our $VERSION = '0.1.0';
  36
  37 Getopt::Long::Configure('bundling');
  38 GetOptions(
  39
  40     'help|h' => \$Opt{'help'},
  41     'quiet|q+' => \$Opt{'quiet'},
  42     'reverse|r' => \$Opt{'reverse'},
  43     'sort|s=s' => \$Opt{'sort'},
  44     'unique|u' => \$Opt{'unique'},
  45     'verbose|v+' => \$Opt{'verbose'},
  46     'version' => \$Opt{'version'},
  47
  48 ) || die("$progname: Option error. Use -h for help.\n");
  49
  50 $Opt{'verbose'} -= $Opt{'quiet'};
  51 $Opt{'help'} && usage(0);
  52 if ($Opt{'version'}) {
  53     print_version();
  54     exit(0);
  55 }
  56
  57 exit(main());
  58
  59 sub main {
  60     # {{{
  61     my $Retval = 0;
  62
  63     my $sortele = $Opt{'sort'} || die("$progname: -s/--sort not defined\n");
  64     my $buf = '';
  65     my @Data = ();
  66     my %dupfree = ();
  67
  68     while (my $Curr = <>) {
  69         if ($Curr =~ /<$sortele\b/) {
  70             $buf = $Curr;
  71             if ($Curr =~ /<\/$sortele>/) {
  72                 $Opt{'unique'}
  73                     ? ($dupfree{$buf} = 1)
  74                     : push(@Data, $buf);
  75                 $buf = "";
  76             }
  77             while ($Curr = <>) {
  78                 $buf .= $Curr;
  79                 if ($Curr =~ /<\/$sortele>/) {
  80                     $Opt{'unique'}
  81                         ? ($dupfree{$buf} = 1)
  82                         : push(@Data, $buf);
  83                     $buf = "";
  84                 }
  85             }
  86             if ($Opt{'unique'}) {
  87                 print($Opt{'reverse'}
  88                     ? reverse sort(keys %dupfree)
  89                     : sort(keys %dupfree));
  90             } else {
  91                 print($Opt{'reverse'}
  92                     ? reverse sort(@Data)
  93                     : sort(@Data));
  94             }
  95             print($buf);
  96             last;
  97         } else {
  98             print($Curr);
  99         }
 100     }
 101
 102     return $Retval;
 103     # }}}
 104 } # main()
 105
 106 sub print_version {
 107     # Print program version {{{
 108     print("$progname $VERSION\n");
 109     return;
 110     # }}}
 111 } # print_version()
 112
 113 sub usage {
 114     # Send the help message to stdout {{{
 115     my $Retval = shift;
 116
 117     if ($Opt{'verbose'}) {
 118         print("\n");
 119         print_version();
 120     }
 121     print(<<"END");
 122
 123 Usage: $progname [options] -s X [file [files [...]]]
 124
 125 Sorts the X elements in an XML file.
 126
 127 Options:
 128
 129   -h, --help
 130     Show this help.
 131   -q, --quiet
 132     Be more quiet. Can be repeated to increase silence.
 133   -r, --reverse
 134     Sort in reverse order.
 135   -s X, --sort X
 136     Sort file using element X.
 137   -u, --unique
 138     Remove duplicated elements X.
 139   -v, --verbose
 140     Increase level of verbosity. Can be repeated.
 141   --version
 142     Print version information.
 143
 144 END
 145     exit($Retval);
 146     # }}}
 147 } # usage()
 148
 149 sub msg {
 150     # Print a status message to stderr based on verbosity level {{{
 151     my ($verbose_level, $Txt) = @_;
 152
 153     if ($Opt{'verbose'} >= $verbose_level) {
 154         print(STDERR "$progname: $Txt\n");
 155     }
 156     return;
 157     # }}}
 158 } # msg()
 159
 160 __END__
 161
 162 # This program is free software; you can redistribute it and/or modify
 163 # it under the terms of the GNU General Public License as published by
 164 # the Free Software Foundation; either version 2 of the License, or (at
 165 # your option) any later version.
 166 #
 167 # This program is distributed in the hope that it will be useful, but
 168 # WITHOUT ANY WARRANTY; without even the implied warranty of
 169 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 170 # See the GNU General Public License for more details.
 171 #
 172 # You should have received a copy of the GNU General Public License
 173 # along with this program.
 174 # If not, see L<http://www.gnu.org/licenses/>.
 175
 176 # vim: set fenc=UTF-8 ft=perl fdm=marker ts=4 sw=4 sts=4 et fo+=w :