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Ease atomic proposition manipulation for twa.

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* doc/org/tut22.org, src/ltlvisit/apcollect.cc,
src/ltlvisit/apcollect.hh, src/parseaut/parseaut.yy,
src/tests/ikwiad.cc, src/tests/tgbagraph.test,
src/tests/twagraph.cc, src/twa/twa.cc,
src/twa/twa.hh, src/twaalgos/ltl2tgba_fm.cc,
src/twaalgos/randomgraph.cc, src/twaalgos/relabel.cc,
src/twaalgos/stutter.cc, src/twaalgos/stutter.hh: here.
This commit is contained in:
Etienne Renault 2015-07-21 17:30:56 +02:00
parent 953181bbb7
commit 11b9ada2bb
14 changed files with 104 additions and 65 deletions
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16
doc/org/tut22.org
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@ -20,19 +20,11 @@ The interface
// This creates an empty automaton that we have yet to fill.
spot::twa_graph_ptr aut = make_twa_graph(dict);
// The current way to associate a BDD to an atomic proposition is
// not really nice, and should be improved in the future. Currently
// the string first have to be converted into (LTL) formulas...
spot::ltl::environment& e = spot::ltl::default_environment::instance();
const spot::ltl::formula* f1 = e.require("p1");
const spot::ltl::formula* f2 = e.require("p2");
// ...and then those formula can be registered to the BDD dict. The
// BDD dict wants to keep track of which automaton uses which BDD
// variable, so we supply that pointer to aut. The
// register_proposition() function returns a BDD variable number
// Since a BDD is associated to every atomic proposition, the
// register_ap() function returns a BDD variable number
// that can be converted into a BDD using bdd_ithvar().
bdd p1 = bdd_ithvar(dict->register_proposition(f1, aut));
bdd p2 = bdd_ithvar(dict->register_proposition(f2, aut));
bdd p1 = bdd_ithvar(aut->register_ap("p1"));
bdd p2 = bdd_ithvar(aut->register_ap("p2"));
// Set the acceptance condition of the automaton to Inf(0)&Inf(1)
aut->set_generalized_buchi(2);