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twa_graph: add support for universal initial states

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The only missing point is that the HOA parser cannot deal with multiple
universal initial states, as seen in parseaut.test.

* spot/graph/graph.hh (new_univ_dests): New function, extracted from...
(new_univ_edge): ... this one.
* spot/twa/twagraph.hh (set_univ_init_state): Implement using
new_univ_dests.
* spot/twaalgos/dot.cc, spot/twaalgos/hoa.cc, python/spot/impl.i:
Add support for universal initial states.
* spot/parseaut/parseaut.yy: Add preliminary support for
universal initial states.  Multiple universal initial states
are still not supported.
* tests/core/alternating.test, tests/core/parseaut.test,
tests/python/alternating.py: Adjust tests and exercise this new feature.
This commit is contained in:
Alexandre Duret-Lutz 2016-11-30 14:22:44 +01:00
parent d5c9c34514
commit 48c812a595
9 changed files with 193 additions and 88 deletions
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python/spot/impl.i
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@ -761,6 +761,11 @@ def state_is_accepting(self, src) -> "bool":
return self->new_univ_edge(src, v.begin(), v.end(), cond, acc);
}
void set_univ_init_state(const std::vector<unsigned>& v)
{
self->set_univ_init_state(v.begin(), v.end());
}
void report_univ_dest(unsigned src)
{
if (self->is_univ_dest(src))