###########################################################################
#
# unbuildutil.pm -- common methods for the two unbuilding scripts
# A component of the Greenstone digital library software
# from the New Zealand Digital Library Project at the 
# University of Waikato, New Zealand.
#
# Copyright (C) 1999 New Zealand Digital Library Project
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
###########################################################################

package unbuildutil;

sub read_gdbm {
    my ($filename, $infodb) = @_;

    open (PIPEIN, "db2txt \"$filename\" |") || die "couldn't open pipe from db2txt\n";
    my $line = ""; my $key = ""; my $value = "";
    while (defined ($line = <PIPEIN>)) {
	if ($line =~ /^\[([^\]]+)\]$/) {
	    $key = $1;
	} elsif ($line =~ /^-{70}$/) {
	    $infodb->{$key} = $value;
	    #print STDERR "adding key $key, value $value\n";
	    $value = "";
	    $key = "";
	} else {
	    $value .= $line;
	}
    }
    close PIPEIN;
}

1;