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autfilt: add --is-alternating

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* bin/autfilt.cc: Implement --is-alternating.
* tests/core/complete.test: Test it.
* NEWS: Mention it.
This commit is contained in:
Alexandre Duret-Lutz 2016-12-28 09:52:24 +01:00
parent 6a11e149b7
commit 77ce4170dc
3 changed files with 45 additions and 3 deletions
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13
bin/autfilt.cc
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@ -102,15 +102,16 @@ enum {
OPT_INCLUDED_IN,
OPT_INHERENTLY_WEAK_SCCS,
OPT_INTERSECT,
OPT_IS_ALTERNATING,
OPT_IS_COMPLETE,
OPT_IS_DETERMINISTIC,
OPT_IS_EMPTY,
OPT_IS_INHERENTLY_WEAK,
OPT_IS_STUTTER_INVARIANT,
OPT_IS_TERMINAL,
OPT_IS_UNAMBIGUOUS,
OPT_IS_WEAK,
OPT_IS_INHERENTLY_WEAK,
OPT_IS_VERY_WEAK,
OPT_IS_WEAK,
OPT_KEEP_STATES,
OPT_MASK_ACC,
OPT_MERGE,
@ -182,6 +183,8 @@ static const argp_option options[] =
"keep only inherently weak automata", 0 },
{ "is-very-weak", OPT_IS_VERY_WEAK, nullptr, 0,
"keep only very-weak automata", 0 },
{ "is-alternating", OPT_IS_ALTERNATING, nullptr, 0,
"keep only automata using universal branching", 0 },
{ "intersect", OPT_INTERSECT, "FILENAME", 0,
"keep automata whose languages have an non-empty intersection with"
" the automaton from FILENAME", 0 },
@ -409,6 +412,7 @@ static struct opt_t
}* opt;
static bool opt_merge = false;
static bool opt_is_alternating = false;
static bool opt_is_complete = false;
static bool opt_is_deterministic = false;
static bool opt_is_unambiguous = false;
@ -650,6 +654,9 @@ parse_opt(int key, char* arg, struct argp_state*)
case OPT_INTERSECT:
opt->intersect = read_automaton(arg, opt->dict);
break;
case OPT_IS_ALTERNATING:
opt_is_alternating = true;
break;
case OPT_IS_COMPLETE:
opt_is_complete = true;
break;
@ -1016,6 +1023,8 @@ namespace
matched &= opt_unused_ap_n.contains(unused);
matched &= opt_used_ap_n.contains(aut->ap().size() - unused);
}
if (matched && opt_is_alternating)
matched &= aut->is_alternating();
if (matched && opt_is_complete)
matched &= is_complete(aut);
if (matched && (opt_sccs_set | opt_art_sccs_set))