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automata

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-12-25 04:25:23 -08:00
parent 65d147106e
commit 659a7ede84
3 changed files with 338 additions and 99 deletions
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20
src/math/automata/automaton.h
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@ -384,15 +384,23 @@ public:
return out;
}
private:
mutable unsigned_vector m_states1, m_states2;
void get_moves(unsigned state, vector<moves> const& delta, moves& mvs) const {
unsigned_vector states;
get_epsilon_closure(state, delta, states);
for (unsigned i = 0; i < states.size(); ++i) {
state = states[i];
m_states1.reset();
m_states2.reset();
get_epsilon_closure(state, delta, m_states1);
for (unsigned i = 0; i < m_states1.size(); ++i) {
state = m_states1[i];
moves const& mv1 = delta[state];
for (unsigned j = 0; j < mv1.size(); ++j) {
if (!mv1[j].is_epsilon()) {
mvs.push_back(mv1[j]);
move const& mv = mv1[j];
if (!mv.is_epsilon()) {
m_states2.reset();
get_epsilon_closure(mv.dst(), delta, m_states2);
for (unsigned k = 0; k < m_states2.size(); ++k) {
mvs.push_back(move(m, mv.src(), m_states2[k], mv.t()));
}
}
}
}