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#!/usr/bin/perl -w
use strict;
use warnings;
# Copyright 2009 by Javier Fernández-Sanguino Peña <jfs@debian.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Quick and dirty script to compare two msgids (when using PO files
# generated with --previous) with wdiff to find the differences between
# them.
# Usage: perl compare-msgids.pl < XX.po
use File::Temp;
my $DIFF1 = new File::Temp(TEMPLATE => "compare-msgids.XXXXXX");
my $DIFF2 = new File::Temp(TEMPLATE => "compare-msgids.XXXXXX");
my $fileh="";
my $diffblock = 0; # Does the current block has a --previous string?
my $nowrap = 0; # Can the current be rewrapped?
my $ref = ""; # Line reference for the current block
while (my $line = <STDIN>) {
$fileh="";
chomp $line;
$ref .= $line."\n" if $line =~ /^#: /;
$ref = "" if ($line eq "");
if ( $diffblock and $line =~ /^msgstr/ ) {
$diffblock = 0;
$nowrap = 0;
print $DIFF1 "\n\n";
print $DIFF2 "\n\n";
}
$diffblock = 1 if ( $line =~ /^\#\| msgid/ ) ;
$nowrap = 1 if ( $line =~ /^#,.*no-wrap/ ) ;
if ($diffblock) {
if (length $ref) {
print $DIFF1 $ref."\n";
print $DIFF1 $ref."\n";
print $DIFF2 $ref."\n";
$ref = "";
}
$fileh = $DIFF1 if ( $line =~ /^\#\| msgid/ ) ;
$fileh = $DIFF1 if ( $line =~ /^\#\| "/ ) ;
$fileh = $DIFF2 if ( $line =~ /^msgid/ ) ;
$fileh = $DIFF2 if ( $line =~ /^"/ ) ;
if ($fileh ne "") {
$line =~ s/^\#\| //;
print $fileh "\n" if ( $line =~ /^msgid_plural "/);
$line =~ s/^"//;
$line =~ s/^msgid "//;
$line =~ s/^msgid_plural "//;
$line =~ s/"$//;
print $fileh $line;
print $fileh "\n" if ($nowrap and $line =~ m/\\n$/);
}
}
}
close $DIFF1; close $DIFF2;
system ("wdiff", "-3", $DIFF1->filename, $DIFF2->filename)
or die "Failed to run wdiff.";
exit;
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