URPM/Query.pm


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package URPM;

use strict;

# Olivier Thauvin <thauvin@aerov.jussieu.fr>
# This package extend URPM functions to permit
# URPM low level query on rpm header
# $Id$

# tag2id
# INPUT array of rpm tag name
# Return an array of ID tag

sub tag2id {
	my @l = @_;
	my %taglist = URPM::list_rpm_tag();
	map { $taglist{uc($_)} || undef } @l;
}

sub query_pkg {
   my ($urpm, $pkg, $query) = @_;
   my @tags = map {
	   [ $pkg->get_tag(tag2id($_)) ]
   } $query =~ m/\%\{([^{}]*)\}*/g;

   $query =~ s/\%\{[^{}]*\}/%s/g;
   $query =~ s/\\n/\n/g;
   $query =~ s/\\t/\t/g;
   my ($max, @res) = 0;

   foreach (@tags) { $max < $#{$_} and $max = $#{$_} };
   
   foreach my $i (0 .. $max) {
	   push(@res, sprintf($query, map { ${$_}[ $#{$_} < $i ? $#{$_} : $i ] } @tags));
   }
   @res	   
}


1;