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acc: recognize parity acceptance

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It has two modes: strict or not.  In strict mode (tested in
hoaparse.test), the acceptance formula has to match exactly the one
given in the HOA spec.  In non-strict mode (tested in accparse2.py)
any equivalent formula is accepted.

* src/twa/acc.cc, src/twa/acc.hh (acc_cond::is_parity): New method.
* src/twaalgos/hoa.cc: Use it.
* src/tests/hoaparse.test: Test it.
* wrap/python/spot_impl.i: Bind it.
* wrap/python/tests/accparse2.py: New file.
* wrap/python/tests/Makefile.am: Add it.
This commit is contained in:
Alexandre Duret-Lutz 2015-05-19 22:22:53 +02:00
parent 704eaf26c2
commit 04171207e6
7 changed files with 287 additions and 0 deletions
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1
wrap/python/tests/Makefile.am
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@ -32,6 +32,7 @@ check_SCRIPTS = run
TESTS = \
accparse.ipynb \
accparse2.py \
alarm.py \
automata.ipynb \
automata-io.ipynb \

33
wrap/python/tests/accparse2.py Normal file
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@ -0,0 +1,33 @@
# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2015 Laboratoire de Recherche et Développement
# de l'Epita
#
# This file is part of Spot, a model checking library.
#
# Spot 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 3 of the License, or
# (at your option) any later version.
#
# Spot 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, see <http://www.gnu.org/licenses/>.
import spot
a = spot.acc_cond(5)
a.set_acceptance(spot.parse_acc_code('parity min odd 5'))
assert(a.is_parity() == [True, False, True])
a.set_acceptance(spot.parse_acc_code('parity max even 5'))
assert(a.is_parity() == [True, True, False])
a.set_acceptance(spot.parse_acc_code('generalized-Buchi 5'))
assert(a.is_parity() == [False, False, False])
assert(a.is_parity(True) == [False, False, False])
a.set_acceptance(spot.parse_acc_code(
'Inf(4) | (Fin(3)&Inf(2)) | (Fin(3)&Fin(1)&Inf(0))'))
assert(a.is_parity() == [False, False, False])
assert(a.is_parity(True) == [True, True, False])