Commit graph

377 commits

Author SHA1 Message Date
Alexandre Duret-Lutz
1e9daa73f3 complete: merge edges going to the sink
* spot/twaalgos/complete.cc: Here.
* tests/python/dualize.py, tests/core/complete.test: Adjust test cases.
2017-07-24 16:44:54 +02:00
Alexandre Duret-Lutz
37f3154f1d degen, sbacc: merge accepting sinks
Fixes #276.

* spot/twaalgos/sbacc.cc, spot/twaalgos/degen.cc: Detect accepting
sinks, and merge them.
* tests/python/dualize.py: Adjust.
* tests/python/sbacc.py: More test cases.
2017-07-24 16:13:56 +02:00
Thomas Medioni
7e7c257597 spot::sbacc() works on alternating automata, fix dualize
Fixes #273.

* NEWS: Mention this.
* spot/twaalgos/dualize.cc, tests/python/dualize.py: Adapt dualize.
* spot/twaalgos/sbacc.cc, tests/core/sbacc.test: sbacc support
  alternating automata
2017-07-20 18:10:40 +02:00
Thomas Medioni
c8889e65f0 Implement to_weak_alternating() which weakifies tgbas
* NEWS: mention the modification.
* python/spot/impl.i: makes to_weak_alternating visible from python
* spot/twaalgos/Makefile.am, spot/twaalgos/toweak.cc,
  spot/twaalgos/toweak.hh: Implements to_weak_alternating.
* tests/Makefile.am, tests/python/toweak.py: Test the results of
  to_weak_alternating.
2017-07-19 16:54:09 +02:00
xlauko
d45b60a4e5 remfin: Use tra2tba as new rabin strategy in remove_fin
Move implementation of tra2tba to remfin.

* python/spot/impl.i: Remove tra2tba python bindings
* spot/twaalgos/Makefile.am: Remove tra2tba
* spot/twaalgos/remfin.cc: Update rabin_strategy
* spot/twaalgos/tra2tba.cc: Delete the file
* spot/twaalgos/tra2tba.hh: Delete the file
* tests/core/remfin.test: Update tests
* tests/python/tra2tba.py: Update tests
2017-07-17 17:21:19 +02:00
xlauko
bd8ede6226 tra2tba: Merge edges of resulting automaton
* spot/twaalgos/tra2tba.cc: Call 'merge_edges'
* tests/python/tra2tba.py: Update tests
2017-07-17 17:21:06 +02:00
Henrich Lauko
69cf3c5590 tra2tba: Add support for Rabin like automata
* spot/twaalgos/tra2tba.cc: Support Rabin like input
* tests/core/tra2tba.cc: Remove C tests
* tests/core/tra2tba.test: Remove C tests
* tests/python/tra2tba.py: Convert C tests to python
* tests/Makefile.am: Remove C tests and add python tests
2017-07-17 17:21:00 +02:00
Alexandre Duret-Lutz
2ecd93ace8 python: export the sbacc() algorithm
Fixes #274.

* python/spot/impl.i: Bind sbacc().
* tests/python/sbacc.py: New tesat.
* tests/Makefile.am: Add sbacc.py.
2017-07-17 15:30:54 +02:00
Alexandre Duret-Lutz
09e47d648a decompose: merge decompose_strength() and decompose_scc()
These two functions were doing almost identical work, the only
difference was the way to select the SCC to keep.  Now we have a more
uniform way to do that.  Closes #172.

* bin/autfilt.cc: Offer a unique --decompose-scc option, but keep
--decompose-strength as an alias for backward compatibility.
* spot/twaalgos/strength.cc, spot/twaalgos/strength.hh: Rename
decompose_strength as decompose_scc, and handle a way to list
all SCC numers in the string specifier.  This gets rid
of the nearly identical
* tests/core/scc.test, tests/core/strength.test,
tests/python/decompose.ipynb, tests/python/decompose_scc.py: Adjust
test cases.
* NEWS: Adjust.
2017-06-30 23:09:31 +02:00
Alexandre Duret-Lutz
20df3b4e98 acc: fix maybe_accepting() on Fin(x)|Fin(y)|Fin(z)
Fixes #271, reported by Henrich Lauko.

* spot/twa/acc.cc (maybe_accepting): Fix handling in case
of disjunction of Fin.
* tests/core/scc.test, tests/python/accparse2.py: Add more
tests.
2017-06-21 16:15:13 +02:00
Alexandre Duret-Lutz
0bc1dd4446 relabel_here: make it compatible with relabel_bse
* spot/twaalgos/relabel.cc: Deal with the cases where the substitution
value is a Boolean formula.
* spot/twaalgos/relabel.hh: Improve documentation.
* tests/python/relabel.py: Add more tests.
* python/spot/impl.i: Add bindings for are_isomorphic for the above
test.
* NEWS: Mention the news.
2017-06-20 15:19:00 +02:00
Thomas Medioni
7b5b8f34f0 streett_to_generalized_buchi() now works on Streett-like
* NEWS: Mention the modification.
* spot/twaalgos/remfin.cc: Adapt to avoid infinite recursion.
* spot/twaalgos/totgba.cc: Work on Streett-like.
* tests/Makefile.am, tests/python/streett_totgba.py: Tests the
  modification.
* tests/core/remfin.test: Fix one test case that is now handled by
  the modification.
2017-06-08 10:49:09 +02:00
Thomas Medioni
a12d676bdc introduce spot::simplify_acceptance()
Simplify some automata where some marks are identical,
or complementary to another. Fixes #216.

* NEWS: mention the new function.
* spot/twaalgos/cleanacc.cc, spot/twaalgos/cleanacc.hh: Implement
  the function.
* tests/Makefile.am, tests/python/merge.py: Test this implementation.
2017-06-08 10:46:29 +02:00
Maximilien Colange
4f8a8f7305 Properly handle "simulated-states" property in twagraph::defrag_states.
* spot/twa/twagraph.cc: Implement the change.
* spot/twaalgos/simulation.hh: Improve documentation.
* tests/python/simstate.py: Improve the test.
* doc/org/concepts.org: Typo.
2017-06-05 15:48:36 +02:00
Alexandre Duret-Lutz
9ab4b840fd simulation: do not depend on bdd numbers for ordering classes
Fixes #262 again.  Reported by Maximilien Colange.

* spot/twaalgos/simulation.cc: Use state numbers to order classes, not
their signatures.  The problem was that even if two simulation of the
same automaton assign the same signature, the BDD identifier used for
that signature might be different, and therefore the ordering obtained
by using BDDs as keys in a map can be different.  A side-effect of
this change is that the order of states in automata produced by
simulation-based reduction may change; many tests had to be updated.
* tests/core/ltl2tgba.test: Add a new test case based on Maximilien's
report.
* tests/core/complement.test, tests/core/det.test,
tests/core/parseaut.test, tests/core/prodor.test, tests/core/scc.test,
tests/python/atva16-fig2a.ipynb, tests/python/automata.ipynb,
tests/python/decompose.ipynb, tests/python/decompose_scc.py,
tests/python/highlighting.ipynb, tests/python/piperead.ipynb,
tests/python/sccinfo.py, tests/python/simstate.py,
tests/python/testingaut.ipynb, tests/python/word.ipynb: Update
test case for new order of states.
2017-06-02 14:10:34 +02:00
Alexandre Duret-Lutz
97f3efabe3 dot: fix printing of alternating automata
Related to #208.

* spot/twaalgos/dot.cc: Fix missing definitions of universal nodes,
and inclusion of universal nodes inside of SCC when none of the
destination comes back to the SCC.
* tests/python/_altscc.ipynb: Adjust and add more test cases.
* tests/core/alternating.test, tests/core/neverclaimread.test,
tests/core/readsave.test, tests/core/sccdot.test,
tests/python/decompose.ipynb: Adjust test cases.
* NEWS: Mention the bug.
2017-05-31 17:55:15 +02:00
Alexandre Duret-Lutz
78add1d44b acc: add a maybe_accepting() method
* spot/twa/acc.cc, spot/twa/acc.hh: Implement the new method, and
use it to implement inf_accepting().
* tests/python/accparse2.py: Add some tests.
2017-05-31 17:18:03 +02:00
Maximilien Colange
f7d14ab526 Degeneralization keeps track of levels.
* NEWS: Document this.
* spot/twa/twagraph.cc: `copy_state_names_from` handles this new info.
* spot/twaalgos/degen.hh, spot/twaalgos/degen.cc: Implement it.
* tests/python/origstate.py, tests/python/simstate.py: Update tests to
  reflect the change.
2017-05-31 13:28:42 +02:00
Maximilien Colange
7b5ab54530 Simulation keeps track of simulated states in the input automaton.
* NEWS: Document the change.
* spot/twaalgos/simulation.cc: Implement the change.
* spot/twa/twagraph.cc: `copy_state_names_from` uses simulated states
  info if present.
* spot/twaalgos/determinize.cc: Pretty-print in determinization follows
  simulated states, avoiding possible confusion.
* tests/Makefile.am, tests/python/simstate.py: Add a test.
2017-05-31 13:28:41 +02:00
Thomas Medioni
4da6a5cde1 rs_like: fix bug to accept Fin | Fin , Inf & Inf
co-Büchi is now recognized as Streett-like, Büchi as Rabin-like.
Also recognized Inf & Inf & Inf... as Streett-like and
Fin | Fin | Fin... as Rabin-like.

* spot/twa/acc.cc: Fix the bug
* tests/python/rs_like.py: Add some test case
2017-05-29 11:45:02 +02:00
Alexandre Duret-Lutz
8e19d3f47e scc_info: introduce edges_of() and inner_edges_of()
This is motivated by some upcoming patch by Heňo.

* spot/twaalgos/sccinfo.hh (edges_of, inner_edges_of): New methods.
* spot/twaalgos/sccinfo.cc, spot/twaalgos/strength.cc: Use them.
* spot/twa/twagraph.hh (edge_number): Add an overload.
* python/spot/impl.i: Bind the new methods.
* tests/python/sccinfo.py: Add tests.
* NEWS: Mention the changes.
2017-05-09 22:12:42 +02:00
Alexandre Duret-Lutz
845958834f simplify: fix related to event_univ handling
Fixes #260.  Reported by František Blahoudek.

The simplification F(f)|q = F(f|q), where q designates an event_univ
formula, was not always applied because of a couple of issue: (1) the
mospliter was ignoring event_univ unless favor_event_univ was set, (2)
when processing formulas from res_EventUniv they were not put back
into res_F or res_G to be subject to the F/G rules.

* spot/tl/simplify.cc: Improve handling of the above points.
* tests/core/reduccmp.test: Adjust and add test case.
* tests/core/ltl2tgba2.test, tests/python/atva16-fig2a.ipynb: Adjust.
2017-05-08 11:52:41 +02:00
Alexandre Duret-Lutz
19aae6f9cf introduce spot::split_edges()
Fixes #255.

* spot/twaalgos/split.cc, spot/twaalgos/split.hh,
tests/core/split.test: New files.
* spot/twaalgos/Makefile.am, tests/Makefile.am: Add them.
* bin/autfilt.cc (--split-edges): New option.
* python/spot/impl.i: Process split.hh.
* tests/python/alternating.py: Test split_edges() on
an alternating automaton.
2017-05-05 22:25:12 +02:00
Alexandre Duret-Lutz
e1c14eb90a twa_graph: honor state-names & product-states in format_state()
* spot/twa/twagraph.cc, spot/twa/twagraph.hh (format_state): Honor
the state-names and product-states properties.
* tests/python/highlighting.ipynb: Adjust.
2017-05-05 14:44:06 +02:00
Alexandre Duret-Lutz
46d8aaaae1 twa_graph: introduce copy_state_names_from()
* spot/twa/twagraph.cc, spot/twa/twagraph.hh: Here.  Also
make sure "original-states" survives defrag_states().
* NEWS: Mention it.
* tests/python/origstate.py: New file.
* tests/Makefile.am: Add it.
2017-05-05 14:44:06 +02:00
Alexandre Duret-Lutz
172bee495a minimize_dfa: use the twa_graph interface
Fixes #233, although more cleanup would be welcome.

* spot/twaalgos/minimize.cc: Replace the uses of twa methods by
twa_graph methods, and simplify some data structures.
* tests/core/acc_word.test, tests/core/readsave.test,
tests/python/automata.ipynb: Adjust changed output due
to different data structures.
2017-05-01 22:10:29 +02:00
Alexandre Duret-Lutz
ae78e1d2b2 gen: set more properties in automata
* spot/gen/automata.cc: Set more properties.
* tests/python/gen.py: Check that they are set.
2017-04-28 13:32:48 +02:00
Alexandre Duret-Lutz
ec51f976f8 gen: introduce a new automaton family
* spot/gen/automata.cc, spot/gen/automata.hh: Define AUT_L_NBA.
* bin/genaut.cc (--l-nba): New option.
* bin/man/genaut.x, doc/org/genaut.org, NEWS: Document it.
* tests/python/gen.py, tests/core/genaut.test: Test it.
2017-04-28 13:32:42 +02:00
Alexandre Duret-Lutz
649793df75 gen: pass the bdd_dict to aut_pattern()
* spot/gen/automata.hh (aut_pattern): Add the dict argument.
* spot/gen/automata.cc, python/spot/gen.i: Adjust.
* tests/python/gen.py: Make sure two automata built without
specifying any dictionary share the same one.
2017-04-28 13:32:03 +02:00
Alexandre Duret-Lutz
11ca2803c9 gen: hide ks_cobuchi(), introduce aut_pattern()
* spot/gen/automata.hh, spot/gen/automata.cc: Hide ks_cobuchi() behind
introduce aut_pattern(), as we have already done for the formulas.
* bin/genaut.cc: Simplify using this interface.
* python/spot/gen.i: Introduce aut_patterns().
* tests/python/gen.ipynb, tests/python/gen.py: Adjust.
2017-04-28 13:32:03 +02:00
Alexandre Duret-Lutz
ca7f72bb4b gen: prefix ltl_pattern identifiers with LTL_
This helps with autocompletion in IPython, and it will prevent us from
mixing LTL patterns with automata patterns (once we have more than one
automata generator).

* spot/gen/formulas.hh: Here.
* spot/gen/formulas.cc, bin/genltl.cc, tests/python/gen.ipynb,
tests/python/gen.py: Adjust.
2017-04-28 13:32:03 +02:00
Alexandre Duret-Lutz
540b971355 gen: rename genltl() to ltl_pattern() and introduce ltl_patterns()
* spot/gen/formulas.hh, spot/gen/formulas.cc (genltl): Rename as...
(ltl_pattern): This.
(ltl_pattern_max): New function.
* bin/genltl.cc: Adjust names, and simplify using ltl_pattern_max().
* python/spot/gen.i (ltl_patterns): New function.
* tests/python/gen.py: Test it.
* tests/python/gen.ipynb: New file to document the spot.gen package.
* tests/Makefile.am, doc/org/tut.org: Add gen.ipynb.
2017-04-26 15:06:02 +02:00
Alexandre Duret-Lutz
8939e0dd50 genltl: move all formula generation code to spot/gen/
Fixes #254.

* spot/gen/formulas.cc, spot/gen/formulas.hh: New files.
* spot/gen/Makefile.am: Add them.
* spot/Makefile.am: Fix build order.
* bin/genltl.cc: Move most code to the above files and adjust.
* bin/Makefile.am: Link genltl with libspotgen.
* doc/org/arch.tex: Adjust picture to show that genltl uses
libspotgen.
* python/spot/gen.i: Include formulas.hh.
* tests/python/gen.py: Make sure genltl() and ltl_pattern_name()
can be called.
2017-04-25 18:14:15 +02:00
Maximilien Colange
17bbef6cce Check that automata produced by ks_cobuchi are state-based.
* tests/python/gen.py: implement the check.
2017-04-24 14:03:04 +02:00
Alexandre Duret-Lutz
f185aabf44 python: add wrapper for libspotgen
For #254.

* python/spot/gen.i, tests/python/gen.py: New files.
* python/Makefile.am, tests/Makefile.am: Adjust.
* NEWS: Mention the spot.gen python package.
2017-04-23 17:24:23 +02:00
Thomas Medioni
b428ed31ec Implements is_streett_like() and streett_like_pairs(), is_rabin_like...
Adds the method spot::acc_cond::is_streett_like() that behaves like
spot::acc_cond::is_streett() except that it works on a wider range
of acceptance conditions, called Streett-like. Also adds
spot::acc_cond::streett_like_pairs() that returns a boolean assessing
whether the acceptance condition is Streett-like and also returns all
the Streett_like pairs.
Defines the new struct type spot::acc_cond::rs_pair.
Similarily, Adds the methods spot::acc_cond::is_rabin_like() and
spot::acc_cond::rabin_like_pairs().

* NEWS: Mention this modification
* python/spot/impl.i: Declares the new struct to SWIG, and defines
the streett_like_pairs() vector as an output parameter, which makes
the python code return a tuple (boolean, vector) rather than a
pass-by-reference vector.
* spot/twa/acc.cc, spot/twa/acc.hh: Declares an implements the new
methods and the new nested struct.
* tests/Makefile.am: Add new tests to the suite
* tests/python/rs_like.py: Tests the new methods and
the SWIG bindings.
2017-04-21 16:24:08 +02:00
Thomas Medioni
cc3bdfcd2e mark_t: sets() no longer returns a vector
spot::mark_t::sets() was modified so that it now returns an iterable
object rather than an std::vector<unsigned>.

* NEWS: Mention the modification.
* python/spot/impl.i: Declares mark_container as iterable to SWIG.
* spot/parseaut/parseaut.yy: Adapts to the modification.
* spot/twa/acc.hh: Implement the modification.
* tests/python/acc_cond.ipynb: Adapts to the modification.
2017-04-20 14:06:57 +02:00
Thomas Medioni
152b5d0d30 dtwa_complement: deprecated, use dualize() instead.
* NEWS: Mention of the deprecation
* bench/stutter/stutter_invariance_randomgraph.cc,
  bin/autfilt.cc, bin/ltlcross.cc, spot/twaalgos/langmap.cc,
  spot/twaalgos/minimize.cc, spot/twaalgos/powerset.cc,
  spot/twaalgos/stutter.cc, tests/core/ikwiad.cc,
  tests/python/bugdet.py, tests/python/remfin.py,
  tests/python/sum.py: Refactor calls to dtwa_complement() with calls
  to dualize().
* doc/org/upgrade2.org: Change mention of dtwa_complement with dualize.
* spot/twaalgos/complement.hh: Add deprecation notice.
* python/spot/impl.i: Add deprecation notice for the python bindings.
2017-04-07 17:15:38 +02:00
Thomas Medioni
c9d8d41fd3 implement dualize to complement automatons
* NEWS: Mention the implementation
* python/spot/impl.i: Add dualize() to python interface.
* spot/twaalgos/Makefile.am: Add dualize.cc,hh to the build
* spot/twaalgos/dualize.cc: Implement dualize() that takes an automaton
  and returns its dual
* spot/twaalgos/dualize.hh: Implement dualize()
* tests/Makefile.am: Add dualize tests to the test suite
* tests/python/dualize.py: Test cases for dualize
2017-04-07 17:15:38 +02:00
Alexandre Duret-Lutz
f6b735234d python: update some incorrect or obsolete code
* tests/python/ipnbdoctest.py: Use importlib instead of imp.
* tests/python/ltlparse.py: Fix invalid escape sequence.
2017-03-29 20:04:08 +02:00
Alexandre Duret-Lutz
f6a238efd5 twa_graph: fix purge_unreachable_states on alternating automata
The algorithm had two problems: it was removing only useless
destination from universal destination (instead of removing the entire
edge), and it was not properly iterating over the entire reachable
automaton.

* spot/twa/twagraph.cc: Fix it.
* spot/twa/twagraph.hh: Adjust documentation.
* tests/core/alternating.test: Add more tests.
* tests/python/twagraph.py: Adjust.
* NEWS: Mention the bug.
2017-03-29 10:08:23 +02:00
Alexandre Duret-Lutz
4a5d7a3978 rename is_deterministic to is_universal
For #212.

* spot/twa/twa.hh: Rename prop_deterministic() as prop_universal(),
and keep the old name as deprecated.
* spot/twaalgos/isdet.cc, spot/twaalgos/isdet.hh: Rename
is_deterministic() as is_universal(), and add a new function
for is_deterministic().
* doc/org/concepts.org, doc/org/hoa.org, doc/org/tut21.org,
spot/tl/hierarchy.cc, spot/twa/twagraph.cc,
spot/twaalgos/are_isomorphic.cc, spot/twaalgos/determinize.cc,
spot/twaalgos/dtbasat.cc, spot/twaalgos/dtwasat.cc,
spot/twaalgos/hoa.cc, spot/twaalgos/minimize.cc,
spot/twaalgos/postproc.cc, spot/twaalgos/product.cc,
spot/twaalgos/randomgraph.cc, spot/twaalgos/remfin.cc,
spot/twaalgos/simulation.cc, spot/twaalgos/totgba.cc,
spot/twaalgos/word.cc, tests/python/product.ipynb,
tests/python/remfin.py: Adjust.
* NEWS: Mention the change.
2017-03-27 19:34:10 +02:00
Alexandre Duret-Lutz
0de5f50da9 twa: add support for prop_complete()
* spot/twa/twa.hh: Add support.  Make two constructors for prop_set in
order to diagnose constructions with 5 arguments.
* spot/parseaut/parseaut.yy: Adjust diagnostics for complete and
deterministic.
* spot/tl/exclusive.cc, spot/twa/twagraph.cc,
spot/twaalgos/alternation.cc, spot/twaalgos/complete.cc,
spot/twaalgos/complete.hh, spot/twaalgos/degen.cc,
spot/twaalgos/determinize.cc, spot/twaalgos/hoa.cc,
spot/twaalgos/isdet.cc, spot/twaalgos/mask.cc,
spot/twaalgos/minimize.cc, spot/twaalgos/product.cc,
spot/twaalgos/remfin.cc, spot/twaalgos/remprop.cc,
spot/twaalgos/sbacc.cc, spot/twaalgos/sccfilter.cc,
spot/twaalgos/simulation.cc, spot/twaalgos/strength.cc,
spot/twaalgos/stutter.cc, spot/twaalgos/totgba.cc,
tests/core/parseaut.test, tests/python/product.ipynb: Adjust.
* NEWS, doc/org/concepts.org, doc/org/hoa.org,
doc/org/tut21.org: Document it.
2017-03-20 21:07:08 +01:00
Alexandre Duret-Lutz
3d3baf449e parsetl: improve coverage
* spot/parsetl/parsetl.yy: Adjust one diagnostic.
* spot/parsetl/scantl.ll: Fix recovering of missing closing brace
in lenient mode.
* tests/python/declenv.py: Move some tests...
* tests/python/ltlparse.py: ... here, and add many more.
* NEWS: Mention the lenient mode bug.
2017-03-15 14:23:19 +01:00
Alexandre Duret-Lutz
2e3fc0d4d2 emptiness checks: replace assert-preconditions by exceptions
* spot/twaalgos/couvreurnew.cc, spot/twaalgos/gv04.cc,
spot/twaalgos/magic.cc, spot/twaalgos/se05.cc, spot/twaalgos/tau03.cc,
spot/twaalgos/tau03opt.cc: Throw if precondition on acceptance
condition is not satisfied.
* tests/python/misc-ec.py: New file.
* tests/Makefile.am: Add it.
* NEWS: Mention the change.
2017-03-10 14:36:22 +01:00
Alexandre Duret-Lutz
b81d7e5839 python: add python bindings for declarative_environment
* python/spot/impl.i: Here.
* tests/python/declenv.py: New file.
* tests/Makefile.am: Add it.
2017-03-09 17:22:06 +01:00
Thomas Medioni
194c199232 Implement sum(..) and sum_and(..).
Fixes #231.

* NEWS: Mention of implementation of sum, sum_and.
* bin/autfilt.cc: Add --sum, --sum-or and --sum-and options.
* python/spot/impl.i: Add bindings for sum, sum_and.
* spot/twaalgos/Makefile.am: Add sum.cc, sum.hh.
* spot/twaalgos/sum.cc: Implement sum, sum_and.
* spot/twaalgos/sum.hh: Declaration of sum, sum_and.
* tests/Makefile.am: Add sum tests.
* tests/core/explsum.test: Test the sum of two automatons,
  false or false, unsatisfied mark propagation, handling of univ.
  transitions.
* tests/python/sum.py: Check that two automatons that does not
  share their bdd dict are not accepted, then run tests over the
  sum of randomly generated LTL formulas.
2017-03-09 11:42:08 +01:00
Alexandre Duret-Lutz
47e1c9692e typos: dictionnary -> dictionary
* doc/org/upgrade2.org, tests/python/prodexpt.py,
tests/python/product.ipynb, NEWS: Fix typos.
* tests/sanity/style.test: Add a check for this.
2017-03-08 16:10:47 +01:00
Alexandre Duret-Lutz
4e9303e380 python: add bindings for bdd_to_formula()
Follow-up to an email from Ayrat Khalimov.

* python/spot/impl.i: Include twa/formula2bdd.hh.
* python/spot/__init__.py: Make the dictionnary
optional.
* spot/twa/formula2bdd.cc: Throw an exception instead of asserting.
* tests/python/bdditer.py: New file.
* tests/Makefile.am: Add it.
* NEWS: Update.
2017-03-08 15:39:08 +01:00
Alexandre Duret-Lutz
2e763a08cc twa_graph: more test coverage
The goal is to improve coverage stats, but I discovered two issues
while doing so.

* tests/python/twagraph.py: New test case.
* tests/Makefile.am: Add it.
* spot/twa/twagraph.hh: Add fix typos in error messages.
* python/spot/impl.i: Fix broken wrappers for state_from_number and
state_acc_sets.
2017-03-07 23:15:42 +01:00