munge-keeporder.awk.in

#! @AWK@ -f
#
# -*-awk-*-
#
#     Copyright (C) 1998-2000  Thomas Roessler <roessler@guug.de>
#                        2000  Roland Rosenfeld <roland@spinnaker.de>
# 
#     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 St, Fifth Floor, Boston, MA 02110-1301,, USA.
#
# $Id: munge-keeporder.awk.in,v 1.3 2005-10-29 14:48:11 roland Exp $

BEGIN {
    FS = "\t";
    i = 0;
}

{
    line[$1] = $0;
    pos[$1] = i;
    idx[i++] = $1;
}

END {
    for (j = 0; j < i; j++) {
	if (pos[idx[j]] == j) {
	    print line[idx[j]];
	}
    }
}