File extract.pl of Package branding-basedonopensuse

#!/usr/bin/perl
# Copyright (c) 2007, 2008, SUSE Linux Products GmbH

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

use POSIX;     # Needed for setlocale()

my $inpkg = 0;
my $packagename = $ARGV[1];
my $tag = $ARGV[2];
my $descr = '';

my %sources;
my $name;
open(SOURCES, $ARGV[0]);
while ( <SOURCES> ) {
	chomp;
        if (m/^=Pkg:/ && $inpkg) {
            last;
        }
	if (m/^\+$tag/) { $intag = 1; next; }
        if ($inpkg && m/^=$tag/) { s/.*:\s*//; print "$_\n"; next; }
	$intag = 0 if (m/^\-$tag/);
	if (m/^=Pkg:.*$packagename.* /) {
	    $inpkg = 1;
	}
	print "$_\n" if ($inpkg && $intag);
}
close(SOURCES);