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Add an is_unambiguous() function, use it in ltlcross and autfilt

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* src/twaalgos/isunamb.hh, src/twaalgos/isunamb.cc: New files.
* src/twaalgos/Makefile.am: Add them.
* src/tests/unambig.test: New file.
* src/tests/Makefile.am: Add it.
* src/bin/ltlcross.cc: Record whether each produced automaton is
ambiguous.
* src/bin/autfilt.cc: Add a --is-unambiguous option.
* NEWS: Mention it.
This commit is contained in:
Alexandre Duret-Lutz 2013-03-21 11:53:42 +01:00
parent 9f3a7a49de
commit 98de84f3de
8 changed files with 192 additions and 4 deletions
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12
src/bin/autfilt.cc
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@ -39,6 +39,7 @@
#include "twaalgos/product.hh"
#include "twaalgos/isdet.hh"
#include "twaalgos/stutter.hh"
#include "twaalgos/isunamb.hh"
#include "misc/optionmap.hh"
#include "misc/timer.hh"
#include "misc/random.hh"
@ -80,6 +81,7 @@ enum {
OPT_IS_COMPLETE,
OPT_IS_DETERMINISTIC,
OPT_IS_EMPTY,
OPT_IS_UNAMBIGUOUS,
OPT_KEEP_STATES,
OPT_MASK_ACC,
OPT_MERGE,
@ -179,6 +181,8 @@ static const argp_option options[] =
"keep deterministic automata", 0 },
{ "is-empty", OPT_IS_EMPTY, 0, 0,
"keep automata with an empty language", 0 },
{ "is-unambiguous", OPT_IS_UNAMBIGUOUS, 0, 0,
"keep only unambiguous automata", 0 },
{ "intersect", OPT_INTERSECT, "FILENAME", 0,
"keep automata whose languages have an non-empty intersection with"
" the automaton from FILENAME", 0 },
@ -234,6 +238,7 @@ static struct opt_t
static bool opt_merge = false;
static bool opt_is_complete = false;
static bool opt_is_deterministic = false;
static bool opt_is_unambiguous = false;
static bool opt_invert = false;
static range opt_states = { 0, std::numeric_limits<int>::max() };
static range opt_edges = { 0, std::numeric_limits<int>::max() };
@ -344,6 +349,9 @@ parse_opt(int key, char* arg, struct argp_state*)
case OPT_IS_EMPTY:
opt_is_empty = true;
break;
case OPT_IS_UNAMBIGUOUS:
opt_is_unambiguous = true;
break;
case OPT_MERGE:
opt_merge = true;
break;
@ -522,6 +530,10 @@ namespace
matched &= is_complete(aut);
if (opt_is_deterministic)
matched &= is_deterministic(aut);
if (opt_is_deterministic)
matched &= is_deterministic(aut);
else if (opt_is_unambiguous)
matched &= is_unambiguous(aut);
if (opt->are_isomorphic)
matched &= opt->isomorphism_checker->is_isomorphic(aut);
if (opt_is_empty)