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hierarchy: Make is_recurrence() public

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* NEWS: Declare it.
* spot/tl/hierarchy.cc: Remove static keyword and anonymous namespace.
* spot/tl/hierarchy.hh: Declare function.
This commit is contained in:
Alexandre GBAGUIDI AISSE 2017-07-28 10:57:25 +02:00
parent 8cf542644c
commit e59274b609
3 changed files with 30 additions and 23 deletions
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45
spot/tl/hierarchy.cc
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@ -30,31 +30,30 @@
namespace spot
{
namespace
bool
is_recurrence(formula f, const twa_graph_ptr& aut)
{
static bool is_recurrence(formula f, const twa_graph_ptr& aut)
{
if (f.is_syntactic_recurrence() || is_universal(aut))
if (f.is_syntactic_recurrence() || is_universal(aut))
return true;
// If aut is a non-deterministic TGBA, we do
// TGBA->DPA->DRA->(D?)BA. The conversion from DRA to
// BA will preserve determinism if possible.
spot::postprocessor p;
p.set_type(spot::postprocessor::Generic);
p.set_pref(spot::postprocessor::Deterministic
| spot::postprocessor::SBAcc);
p.set_level(spot::postprocessor::Low);
auto dra = p.run(aut);
if (dra->acc().is_generalized_buchi())
{
return true;
// If aut is a non-deterministic TGBA, we do
// TGBA->DPA->DRA->(D?)BA. The conversion from DRA to
// BA will preserve determinism if possible.
spot::postprocessor p;
p.set_type(spot::postprocessor::Generic);
p.set_pref(spot::postprocessor::Deterministic);
p.set_level(spot::postprocessor::Low);
auto dra = p.run(aut);
if (dra->acc().is_generalized_buchi())
{
return true;
}
else
{
auto ba = rabin_to_buchi_maybe(to_generalized_rabin(dra));
assert(ba);
return is_deterministic(ba);
}
}
}
else
{
auto ba = rabin_to_buchi_maybe(to_generalized_rabin(dra));
assert(ba);
return is_deterministic(ba);
}
}
char mp_class(formula f)