#!/usr/bin/python
#    Copyright 2007 Jeff Epler <jepler@unpythonic.net>
#
#    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
"""pincompare.py: compare pin assignments from Quartus II .qsf files

Usage: python pincompare.py first.qsf second.qsf"""

import re, sys
r = re.compile("set_location_assignment (.*) -to (.*)$")

d = {}
e = {}
for f in open(sys.argv[1]):
    m = r.match(f.strip())
    if not m: continue
    d[m.group(1)] = m.group(2)

for f in open(sys.argv[2]):
    m = r.match(f.strip())
    if not m: continue
    if d.get(m.group(1)) != m.group(2):
	print "%8s %8s %8s" % (m.group(1), m.group(2), d.get(m.group(1)))

for k, v in d.items():
    if k not in e:
	print "%8s %8s %8s" % (k, None, v)