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tl: extend F[n:m] and G[n:m] to the case of m=$

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Suggested by Victor Khomenko.

* spot/tl/formula.cc, spot/tl/formula.hh, spot/parsetl/parsetl.yy:
Implement this.
* NEWS, doc/tl/tl.tex: Document it.
* tests/core/sugar.test, tests/python/ltlparse.py: Add some tests.
This commit is contained in:
Alexandre Duret-Lutz 2019-06-02 14:36:07 +02:00
parent 74786324f4
commit 58389bdb80
7 changed files with 57 additions and 16 deletions
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13
tests/python/ltlparse.py
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@ -1,5 +1,5 @@
# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2009-2012, 2014-2017 Laboratoire de Recherche et
# Copyright (C) 2009-2012, 2014-2017, 2019 Laboratoire de Recherche et
# Développement de l'Epita (LRDE).
# Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
# département Systèmes Répartis Coopératifs (SRC), Université Pierre
@ -199,3 +199,14 @@ for (x, msg) in [('a->', "missing right operand for \"implication operator\""),
del f9
assert spot.fnode_instances_check()
f = spot.formula_F(2, 4, spot.formula_ap("a"))
assert f == spot.formula("XX(a | X(a | X(a)))")
f = spot.formula_G(2, 4, spot.formula_ap("a"))
assert f == spot.formula("XX(a & X(a & X(a)))")
f = spot.formula_X(2, spot.formula_ap("a"))
assert f == spot.formula("XX(a)")
f = spot.formula_G(2, spot.formula_unbounded(), spot.formula_ap("a"))
assert f == spot.formula("XXG(a)")
f = spot.formula_F(2, spot.formula_unbounded(), spot.formula_ap("a"))
assert f == spot.formula("XXF(a)")