GitLab

* spot/twa/acc.hh: Here.
* wrap/python/spot_impl.i: Adjust for the strange return type of
unsat_mark().
* wrap/python/tests/acc_cond.ipynb: Augment.

* wrap/python/spot_impl.i: Here.
* wrap/python/tests/acc_cond.ipynb: Document it.
* spot/twa/acc.cc (is_parity): Always initialize max.

* spot/twa/acc.cc, spot/twa/acc.hh: Here.
* spot/parseaut/parseaut.yy, spot/twa/acc.hh,
spot/twaalgos/gtec/gtec.cc, spot/twaalgos/hoa.cc,
spot/twaalgos/neverclaim.cc, spot/twaalgos/product.cc,
spot/twaalgos/remfin.cc, spot/twaalgos/strength.cc: Adjust.
* NEWS: Mention the changes.
* wrap/python/spot_impl.i: Bind acc_cond the printer.
* wrap/python/tests/acc_cond.ipynb: Add more examples.

* wrap/python/tests/acc_cond.ipynb: New file.
* wrap/python/tests/Makefile.am, doc/org/tut.org: Add it.
* wrap/python/spot_impl.i: Add printer for acc_cond::mark_t.

* wrap/python/spot_impl.i: Extend acc_cond::mark_t to with a constructor
that takes a vector.
* doc/org/tut22.org: Add a Python version.
* doc/org/tut.org: Adjust the list, we don't have any C++-specific
example.
* NEWS: Mention it.

Fixes #118.

* spot/twa/twagraph.hh: Avoid using graph_t::state to help Swig.
* wrap/python/spot_impl.i: Add a __str__ function for acc_cond::mark_t.
* doc/org/tut21.org: Add the Python version.
* doc/org/tut.org: Move tut21.org to the Python/C++ section.
* NEWS: Update.

* spot/twa/twagraph.hh (out): Do not hide from SWIG.
* spot/graph/graph.hh: Hide stuff that SWIG do not understand.
* wrap/python/spot_impl.i: Add some typemaps and fragment to
iterate over the result of twa_graph::out().

* wrap/python/spot_impl.i: Get rid of some warnings about missing
typecheck for spot::formula.

* NEWS: Mention the change.
* src/: Rename as ...
* spot/: ... this, adjust all headers to include <spot/...> instead of
"...", and adjust all Makefile.am to search headers from the top-level
directory.
* HACKING: Add conventions about #include.
* spot/sanity/style.test: Add a few more grep to catch cases
that do not follow these conventions.
* .gitignore, Makefile.am, README, bench/stutter/Makefile.am,
bench/stutter/stutter_invariance_formulas.cc,
bench/stutter/stutter_invariance_randomgraph.cc, configure.ac,
debian/rules, doc/Doxyfile.in, doc/Makefile.am,
doc/org/.dir-locals.el.in, doc/org/g++wrap.in, doc/org/init.el.in,
doc/org/tut01.org, doc/org/tut02.org, doc/org/tut03.org,
doc/org/tut10.org, doc/org/tut20.org, doc/org/tut21.org,
doc/org/tut22.org, doc/org/tut30.org, iface/ltsmin/Makefile.am,
iface/ltsmin/kripke.test, iface/ltsmin/ltsmin.cc,
iface/ltsmin/ltsmin.hh, iface/ltsmin/modelcheck.cc,
wrap/python/Makefile.am, wrap/python/ajax/spotcgi.in,
wrap/python/spot_impl.i, wrap/python/tests/ltl2tgba.py,
wrap/python/tests/randgen.py, wrap/python/tests/run.in: Adjust.

Fixes #4 and fixes #5.

* NEWS: Mention the change.
* src/kripkeparse/: Delete.
* README, src/Makefile.am, configure.ac: Adjust.
* src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/kripke/kripkeprint.cc, src/kripke/kripkeprint.hh: Delete.
* src/kripke/kripkegraph.hh: New file.
* src/kripke/Makefile.am: Adjust.
* src/parseaut/parseaut.yy, src/parseaut/public.hh: Add
an option to read kripke structures.
* src/tests/bad_parsing.test: Delete.
* src/tests/Makefile.am: Adjust.
* src/tests/kripke.test, src/tests/parse_print_test.cc: Rewrite.
* src/tests/ikwiad.cc, src/tests/parseaut.test,
iface/ltsmin/modelcheck.cc, wrap/python/spot_impl.i: Adjust.

* src/twaalgos/dtgbasat.cc, src/twaalgos/dtgbasat.hh: Rename as...
* src/twaalgos/dtwasat.cc, src/twaalgos/dtwasat.hh: ... these.
* src/bin/autfilt.cc, src/tests/ikwiad.cc, src/twaalgos/Makefile.am,
src/twaalgos/postproc.cc, wrap/python/spot_impl.i: Adjust.
* NEWS: Mention the renamings.

* src/twaalgos/safety.cc, src/twaalgos/safety.hh: Rename as ...
* src/twaalgos/strength.cc, src/twaalgos/strength.hh: ... these.
* src/bin/ltlfilt.cc, src/tests/ikwiad.cc, src/twaalgos/Makefile.am,
src/twaalgos/compsusp.cc, src/twaalgos/minimize.cc,
wrap/python/spot_impl.i: Adjust.

Fixes #117.

* wrap/python/spot.py, wrap/python/spot_impl.i: Add binding.
* wrap/python/tests/remfin.py: Add a small test case.
* NEWS: Mention it.

* src/twaalgos/emptiness.hh, src/twaalgos/emptiness.cc: Declare the
operator<< for twa_run, not for twa_run_ptr (the shared_ptr
automatically forward operator<<).
* wrap/python/spot_impl.i: Add __str__ to twa_run, not twa_run_ptr.

This simplify all laters invocations, because we do not have to pass
the automaton the run was generated on.

This fixes #113 by allowing the __str__ function to be implemented on
runs.

* src/twaalgos/emptiness.cc, src/twaalgos/emptiness.hh (twa_run):
Store the automaton.
(prin_twa_run): Rewrite as an overloaded <<.
* src/twaalgos/reducerun.cc, src/twaalgos/reducerun.hh (reduce_run):
Do not like the automaton as a parameter.
* src/twaalgos/replayrun.cc, src/twaalgos/replayrun.hh (replay_twa_run):
Likewise.
* src/bin/common_aoutput.hh, src/bin/ltlcross.cc,
src/tests/complementation.cc, src/tests/ikwiad.cc,
src/tests/randtgba.cc, src/twaalgos/gtec/ce.cc, src/twaalgos/gv04.cc,
src/twaalgos/magic.cc, src/twaalgos/ndfs_result.hxx,
src/twaalgos/se05.cc, src/twaalgos/projrun.cc: Adjust.
* wrap/python/ajax/spotcgi.in: Add a __str__ function to twa_run_ptr.
* wrap/python/spot_impl.i: Adjust.

Part of #113.

* src/twaalgos/emptiness.cc, src/twaalgos/emptiness.hh (tgba_run):
Rename as ...
(twa_run): ... this.
* NEWS: Mention it.
* iface/ltsmin/modelcheck.cc, src/tests/complementation.cc,
src/tests/emptchk.cc, src/tests/ikwiad.cc, src/tests/randtgba.cc,
src/twa/twa.hh, src/twaalgos/bfssteps.cc, src/twaalgos/bfssteps.hh,
src/twaalgos/gtec/ce.cc, src/twaalgos/gtec/ce.hh,
src/twaalgos/gv04.cc, src/twaalgos/magic.cc, src/twaalgos/minimize.cc,
src/twaalgos/ndfs_result.hxx, src/twaalgos/projrun.cc,
src/twaalgos/projrun.hh, src/twaalgos/reducerun.cc,
src/twaalgos/reducerun.hh, src/twaalgos/replayrun.cc,
src/twaalgos/replayrun.hh, src/twaalgos/se05.cc, src/twaalgos/word.cc,
src/twaalgos/word.hh, wrap/python/ajax/spotcgi.in,
wrap/python/spot_impl.i: Adjust.

Doing so also work around some differences between Swig 3.0.2 and 3.0.7
observed on our build farm.

* wrap/python/spot.py: Here.
* wrap/python/spot_impl.i: Recognize None as a null formula
on input.

* wrap/python/spot_impl.i (get_name, set_name): New methods for twa.
* wrap/python/tests/remfin.py: Test them.
* wrap/python/ajax/spotcgi.in: Use set_name().
* NEWS: Mention it.

The previous code was sometime doing the work of remove_fin() in
addition to complementing the acceptance conditions.  This separate
the two operations clearly.  Also the specialized code for
complementing weak automata is now a specialized code for remove_fin()
on weak automata.

* src/twaalgos/dtgbacomp.hh, src/twaalgos/dtgbacomp.cc: Rename as ...
* src/twaalgos/complement.hh, src/twaalgos/complement.cc: ... these.
* src/twaalgos/Makefile.am: Adjust.
* src/twaalgos/complement.hh (dtgba_complement): Rename as ...
(dtwa_complement): ... this, and restrict the purpose to completion
and accetance complementation.  Further acceptance simplification
can be done with remove_fin() and to_generalized_buchi().
* src/twaalgos/remfin.cc (remove_fin): Specialize handling of weak
automata using the code that was originally in dtgba_complement().
Also mark the output as state-based when the input has to Inf.
* src/twaalgos/postproc.cc, src/twaalgos/postproc.hh: Make sure
scc_filter is always called after to_generalized_buchi().
* bench/stutter/stutter_invariance_randomgraph.cc,
src/bin/ltlcross.cc, src/tests/ikwiad.cc, src/twaalgos/minimize.cc,
src/twaalgos/powerset.cc, src/twaalgos/stutter.cc: Adjust usage.
* src/tests/dstar.test, src/tests/ltl2dstar4.test,
src/tests/remfin.test: Adjust expected outputs.
* wrap/python/spot_impl.i: Export dtwa_complement().

Fixes #105.

* src/bin/common_trans.cc (quote_shell_string): Move ...
* src/misc/escape.cc, src/misc/escape.hh (quote_shell_string):
... here.
* wrap/python/spot_impl.i: Wrap escape.hh.
* wrap/python/spot.py: Implement formula.__format__.
* wrap/python/tests/ltlsimple.py: Test it.
* NEWS, doc/org/tut01.org, wrap/python/tests/formulas.ipynb: Document
it.

* wrap/python/spot_impl.i: Map null formulas to None.
* wrap/python/tests/randgen.py: New file.
* wrap/python/tests/Makefile.am: Add it.

* src/twaalgos/complete.cc, src/twaalgos/complete.hh
(tgba_complete, tgba_complete_here): Rename as...
(complete, complete_here): ... these.  Also fix useless output of
acceptance marks on transition leading to the sink when the automaton
does not use state-based acceptance.
* src/tests/ikwiad.cc, src/twaalgos/dtgbacomp.cc,
src/twaalgos/dtgbasat.cc, src/twaalgos/postproc.cc,
src/twaalgos/product.cc: Adjust.
* wrap/python/spot_impl.i: Export these function.
* wrap/python/tests/automata.ipynb: Test spot.complete().

* src/ltlparse/public.hh: Rename as...
* src/tl/parse.hh: ... this.
* src/ltlparse/: Rename as...
* src/parsetl/: ... this.
* NEWS: Mention the change.
* README, configure.ac, doc/org/tut01.org, doc/org/tut02.org,
doc/org/tut03.org, doc/org/tut10.org, src/Makefile.am,
src/bin/common_finput.cc, src/bin/common_finput.hh, src/bin/ltl2tgta.cc,
src/kripkeparse/kripkeparse.yy, src/parseaut/parseaut.yy,
src/tests/checkpsl.cc, src/tests/checkta.cc,
src/tests/complementation.cc, src/tests/consterm.cc,
src/tests/emptchk.cc, src/tests/equalsf.cc, src/tests/ikwiad.cc,
src/tests/kind.cc, src/tests/length.cc, src/tests/ltlprod.cc,
src/tests/ltlrel.cc, src/tests/randtgba.cc, src/tests/readltl.cc,
src/tests/reduc.cc, src/tests/syntimpl.cc, src/tests/tostring.cc,
src/tl/Makefile.am, src/twaalgos/lbtt.cc, wrap/python/spot_impl.i,
iface/ltsmin/modelcheck.cc: Adjust.

* src/twaalgos/dupexp.cc, src/twaalgos/dupexp.hh: Rename to...
* src/twaalgos/copy.cc, src/twaalgos/copy.hh: ... these.
Get rid of dupexp_bfs, rename dupexp_dfs as copy, and add
an option to preserve named states.
* src/twaalgos/Makefile.am, src/tests/dupexp.test,
src/tests/ikwiad.cc, src/tests/sccsimpl.test,
src/twa/twagraph.hh, src/twaalgos/dot.cc,
src/twaalgos/stutter.cc, wrap/python/spot_impl.i: Adjust.
* NEWS: Mention this change.

* NEWS: Mention it.
* bench/stutter/stutter_invariance_formulas.cc,
bench/stutter/stutter_invariance_randomgraph.cc, doc/mainpage.dox,
doc/org/tut01.org, doc/org/tut02.org, doc/org/tut10.org, doc/tl/tl.tex,
iface/ltsmin/ltsmin.cc, iface/ltsmin/ltsmin.hh,
iface/ltsmin/modelcheck.cc, src/bin/autfilt.cc,
src/bin/common_aoutput.cc, src/bin/common_aoutput.hh,
src/bin/common_finput.cc, src/bin/common_finput.hh,
src/bin/common_output.cc, src/bin/common_output.hh, src/bin/common_r.hh,
src/bin/common_trans.cc, src/bin/common_trans.hh, src/bin/dstar2tgba.cc,
src/bin/genltl.cc, src/bin/ltl2tgba.cc, src/bin/ltl2tgta.cc,
src/bin/ltlcross.cc, src/bin/ltldo.cc, src/bin/ltlfilt.cc,
src/bin/ltlgrind.cc, src/bin/randaut.cc, src/bin/randltl.cc,
src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/kripkeparse/kripkeparse.yy, src/kripkeparse/public.hh,
src/ltlparse/fmterror.cc, src/ltlparse/ltlparse.yy,
src/ltlparse/ltlscan.ll, src/ltlparse/parsedecl.hh,
src/ltlparse/public.hh, src/parseaut/parseaut.yy,
src/parseaut/public.hh, src/tests/checkpsl.cc, src/tests/checkta.cc,
src/tests/complementation.cc, src/tests/consterm.cc,
src/tests/emptchk.cc, src/tests/equalsf.cc, src/tests/ikwiad.cc,
src/tests/kind.cc, src/tests/length.cc, src/tests/ltlprod.cc,
src/tests/ltlrel.cc, src/tests/parse.test,
src/tests/parse_print_test.cc, src/tests/randtgba.cc,
src/tests/readltl.cc, src/tests/reduc.cc, src/tests/syntimpl.cc,
src/tests/taatgba.cc, src/tests/tostring.cc, src/tests/tostring.test,
src/tl/apcollect.cc, src/tl/apcollect.hh, src/tl/contain.cc,
src/tl/contain.hh, src/tl/declenv.cc, src/tl/declenv.hh,
src/tl/defaultenv.cc, src/tl/defaultenv.hh, src/tl/dot.cc,
src/tl/dot.hh, src/tl/environment.hh, src/tl/exclusive.cc,
src/tl/exclusive.hh, src/tl/formula.cc, src/tl/formula.hh,
src/tl/length.cc, src/tl/length.hh, src/tl/mark.cc, src/tl/mark.hh,
src/tl/mutation.cc, src/tl/mutation.hh, src/tl/nenoform.cc,
src/tl/nenoform.hh, src/tl/print.cc, src/tl/print.hh,
src/tl/randomltl.cc, src/tl/randomltl.hh, src/tl/relabel.cc,
src/tl/relabel.hh, src/tl/remove_x.cc, src/tl/remove_x.hh,
src/tl/simpfg.cc, src/tl/simpfg.hh, src/tl/simplify.cc,
src/tl/simplify.hh, src/tl/snf.cc, src/tl/snf.hh, src/tl/unabbrev.cc,
src/tl/unabbrev.hh, src/twa/bdddict.cc, src/twa/bdddict.hh,
src/twa/bddprint.cc, src/twa/formula2bdd.cc, src/twa/formula2bdd.hh,
src/twa/taatgba.cc, src/twa/taatgba.hh, src/twa/twa.hh,
src/twa/twagraph.cc, src/twa/twagraph.hh, src/twaalgos/compsusp.cc,
src/twaalgos/compsusp.hh, src/twaalgos/ltl2taa.cc,
src/twaalgos/ltl2taa.hh, src/twaalgos/ltl2tgba_fm.cc,
src/twaalgos/ltl2tgba_fm.hh, src/twaalgos/minimize.cc,
src/twaalgos/minimize.hh, src/twaalgos/neverclaim.cc,
src/twaalgos/postproc.cc, src/twaalgos/postproc.hh,
src/twaalgos/powerset.cc, src/twaalgos/powerset.hh,
src/twaalgos/randomgraph.cc, src/twaalgos/randomgraph.hh,
src/twaalgos/relabel.cc, src/twaalgos/relabel.hh,
src/twaalgos/remprop.cc, src/twaalgos/remprop.hh, src/twaalgos/stats.cc,
src/twaalgos/stats.hh, src/twaalgos/stutter.cc, src/twaalgos/stutter.hh,
src/twaalgos/translate.cc, src/twaalgos/translate.hh,
wrap/python/spot_impl.i: Remove the ltl namespace.

The ltl prefix does not make a lot of sens anymore (since we
support psl as well).  ltlast/ and ltlenv/ were almost empty.
And ltlvisit/ did not contain any visitor anymore.

* src/ltlvisit/, src/ltlast/, src/ltlenv/: Merge into...
* src/tl/: ...this.
* NEWS: Mention the change.
* README, bench/stutter/stutter_invariance_formulas.cc,
bench/stutter/stutter_invariance_randomgraph.cc, configure.ac,
doc/org/tut01.org, doc/org/tut02.org, doc/org/tut10.org, doc/tl/tl.tex,
iface/ltsmin/ltsmin.hh, iface/ltsmin/modelcheck.cc, src/Makefile.am,
src/bin/autfilt.cc, src/bin/common_output.cc, src/bin/common_output.hh,
src/bin/common_r.hh, src/bin/common_trans.cc, src/bin/genltl.cc,
src/bin/ltl2tgba.cc, src/bin/ltl2tgta.cc, src/bin/ltlcross.cc,
src/bin/ltldo.cc, src/bin/ltlfilt.cc, src/bin/ltlgrind.cc,
src/bin/randltl.cc, src/kripke/kripkeexplicit.hh,
src/kripkeparse/public.hh, src/parseaut/public.hh, src/priv/accmap.hh,
src/ta/taexplicit.hh, src/ta/tgtaexplicit.hh, src/tests/equalsf.cc,
src/tests/ikwiad.cc, src/tests/length.cc, src/tests/ltlrel.cc,
src/tests/randtgba.cc, src/tests/readltl.cc, src/tests/reduc.cc,
src/tests/syntimpl.cc, src/tests/taatgba.cc, src/tests/tostring.cc,
src/tests/twagraph.cc, src/twa/acc.hh, src/twa/bdddict.cc,
src/twa/bdddict.hh, src/twa/bddprint.cc, src/twa/taatgba.cc,
src/twa/taatgba.hh, src/twa/twa.hh, src/twa/twagraph.cc,
src/twa/twagraph.hh, src/twa/twasafracomplement.cc,
src/twaalgos/compsusp.cc, src/twaalgos/compsusp.hh,
src/twaalgos/dtgbasat.cc, src/twaalgos/hoa.cc,
src/twaalgos/isweakscc.cc, src/twaalgos/lbtt.cc,
src/twaalgos/ltl2taa.cc, src/twaalgos/ltl2taa.hh,
src/twaalgos/ltl2tgba_fm.cc, src/twaalgos/ltl2tgba_fm.hh,
src/twaalgos/minimize.hh, src/twaalgos/neverclaim.cc,
src/twaalgos/randomgraph.hh, src/twaalgos/relabel.hh,
src/twaalgos/remprop.hh, src/twaalgos/stats.cc, src/twaalgos/stutter.cc,
src/twaalgos/translate.hh, wrap/python/spot_impl.i,
src/ltlparse/ltlparse.yy, src/ltlparse/public.hh: Adjust.

* src/ltlast/formula.hh (formula::nth): Replace by ...
(formula::operator[]): ... this.
* src/ltlvisit/mark.cc, src/ltlvisit/mutation.cc, src/ltlvisit/print.cc,
src/ltlvisit/relabel.cc, src/ltlvisit/remove_x.cc,
src/ltlvisit/simpfg.cc, src/ltlvisit/simplify.cc, src/ltlvisit/snf.cc,
src/ltlvisit/unabbrev.cc, src/twa/formula2bdd.cc,
src/twaalgos/compsusp.cc, src/twaalgos/ltl2taa.cc,
src/twaalgos/ltl2tgba_fm.cc, wrap/python/spot_impl.i: Adjust.

* wrap/python/spot_impl.i: Implement it.
* wrap/python/tests/ltlsimple.py: Test a for loop.
* src/ltlast/formula.hh: Remove superfluous assert().

Flatten the formula ltl::formula hiearchy into a single ltl::vnode that
has an enumerator to distinguish the types of node, and a common
interface to access children, update reference counts, etc.  The
ltl::formula class is now a thin wrapper around an ltl::vnode pointer to
keep track of reference counts automatically.  Visitor are not used
anymore; we now have map() and traversor() methods that are more
concise.

This basically fixes #43, but should be followed by some fine tuning
that should now be localized to the formula.hh and formula.cc files.

Some statistics about this patch.  I started working on it on Sep 9, had
a first compiling version two weeks later on Sep 22, and it then took 5
days to fixes the ~70 distincts bugs that were introduced during the
conversion.  About 13200 lines were modified, and one third of those
were removed.

* src/ltlast/formula.cc, src/ltlast/formula.hh: Complete rewrite,
including what was in separate nearby files.
* src/ltla...

* src/ltlvisit/lunabbrev.cc, src/ltlvisit/lunabbrev.hh,
src/ltlvisit/tunabbrev.cc, src/ltlvisit/tunabbrev.hh,
src/ltlvisit/wmunabbrev.cc, src/ltlvisit/wmunabbrev.hh: Delete.
* src/ltlvisit/unabbrev.cc, src/ltlvisit/unabbrev.hh: New files.
* src/ltlvisit/Makefile.am: Adjust.
* src/ltlvisit/print.cc, src/tests/equalsf.cc, src/tests/Makefile.am,
src/twaalgos/ltl2taa.cc, wrap/python/spot_impl.i, src/bin/ltlfilt.cc:
Adjust callers.
* src/ltlvisit/contain.cc, src/tests/syntimpl.cc: Remove useless
include.
* wrap/python/tests/formulas.ipynb: New test cases.
* doc/tl/tl.tex: Group all rules in a single section.
* NEWS: Mention it.

Fixes #53.

* wrap/python/ajax/spotcgi.in: Do that.
* wrap/python/ajax/trans.html: Fixup jquery code to
avoid looping over tabs.
* wrap/python/spot_impl.i: Wrap the automaton relabeling code.
* NEWS: Update.

Because this parser is not specific to HOA anymore.

* src/hoaparse/Makefile.am, src/hoaparse/fmterror.cc,
src/hoaparse/hoaparse.yy, src/hoaparse/parsedecl.hh,
src/parseaut/public.hh, src/hoaparse/hoascan.ll,
src/tests/hoaparse.test: Rename to...
* src/parseaut/Makefile.am, src/parseaut/fmterror.cc,
src/parseaut/parseaut.yy, src/parseaut/parsedecl.hh,
src/hoaparse/public.hh, src/parseaut/scanaut.ll,
src/tests/parseaut.test: ... these, and also adjust the name internally.
For instance hoa_aut_ptr is now parsed_aut_ptr; hoa_stream_parser is now
automaton_stream_parser, and hoa_parse() has become parse_aut().
* NEWS, README, configure.ac, doc/org/tut20.org, src/Makefile.am,
src/bin/autfilt.cc, src/bin/common_aoutput.cc,
src/bin/common_aoutput.hh, src/bin/common_conv.cc,
src/bin/ltlcross.cc, src/bin/ltldo.cc, src/tests/Makefile.am,
src/tests/complementation.cc, src/tests/ltl2tgba.cc,
src/tests/readsave.test, wrap/python/ajax/spot.in,
wrap/python/spot.py, wrap/python/spot_impl.i,
wrap/python/tests/automata-io.ipynb, wrap/python/tests/parsetgba.py:
Adjust.

This fixes #61, and addresses one item of #14.

* src/ltlvisit/relabel.hh: Use a map rather than a unordered_map,
because the Swig binding for unordered_map do not seem functional.
* wrap/python/spot_impl.i: Adjust.
* wrap/python/tests/relabel.py: New file.
* wrap/python/tests/Makefile.am: Add it.
* doc/org/tut02.org: New file.
* doc/Makefile.am: Add it.

The following renamings are made:

  never_claim_reachable -> print_never_claim
  hoa_reachable   -> print_hoa
  lbtt_reachable  -> print_lbtt
  dotty_reachable -> print_dot
  ltl::dotty      -> print_dot_psl

Fixes #89.

* src/ltlvisit/dotty.cc, src/ltlvisit/dotty.hh, src/taalgos/dotty.cc,
src/taalgos/dotty.hh src/twaalgos/dotty.cc, src/twaalgos/dotty.hh:
Rename...
* src/ltlvisit/dot.cc, src/ltlvisit/dot.hh src/taalgos/dot.cc,
src/taalgos/dot.hh src/twaalgos/dot.cc, src/twaalgos/dot.hh:
... those.
* bench/stutter/stutter_invariance_randomgraph.cc,
iface/ltsmin/modelcheck.cc, src/bin/common_aoutput.cc,
src/bin/dstar2tgba.cc, src/bin/ltl2tgta.cc, src/dstarparse/dra2ba.cc,
src/ltlvisit/Makefile.am, src/taalgos/Makefile.am,
src/tests/checkpsl.cc, src/tests/checkta.cc,
src/tests/complementation.cc, src/tests/emptchk.cc,
src/tests/ltl2tgba.cc, src/tests/ltlprod.cc, src/tests/randtgba.cc,
src/tests/readltl.cc, src/tests/taatgba.cc, src/tests/twagraph.cc,
src/twa/twa.hh, src/twa/twasafracomplement.cc,
src/twaalgos/Makefile.am, src/twaalgos/dtbasat.cc,
src/twaalgos/dtgbasat.cc, src/twaalgos/dupexp.cc,
src/twaalgos/lbtt.cc, src/twaalgos/lbtt.hh,
src/twaalgos/ltl2tgba_fm.cc, src/twaalgos/neverclaim.cc,
src/twaalgos/neverclaim.hh, wrap/python/ajax/spot.in,
wrap/python/spot.py, wrap/python/spot_impl.i,
wrap/python/tests/ltl2tgba.py, wrap/python/tests/parsetgba.py: Adjust.

This actually performs three related changes, but separating them
would be quite inconvenient.

1) rename tostring.hh to print.hh a welcome side-effect is that
I could fix several files that included this file for not reason.

2) de-overload some of the to_string functions, and rename them
as follow:

  to_string -> print_psl, print_sere, str_psl, str_sere
  to_utf8_string -> print_utf8_psl, print_utf8_sere,
                    str_utf8_psl, str_utf8_sere
  to_spin_string -> print_spin_ltl, str_spin_ltl
  to_wring_string -> print_wring_ltl, str_wing_ltl
  to_lbt_string -> print_lbt_ltl, str_lbt_ltl
  to_latex_string -> print_latex_psl, str_latex_psl
  to_sclatex_string -> print_sclatex_psl, str_sclatex_psl

Now it is clearer what these functions do, and their restrictions.

3) all those print_* functions now take the stream to write onto
as their first argument.  This fixes #88.

* src/ltlvisit/tostring.cc, src/ltlvisit/tostring.hh: Rename into...
* src/ltlvisit/print.cc, src/ltlvisit/print.hh: ... those, and make
the changes listed above.
* doc/org/tut01.org, src/bin/common_output.cc,
src/bin/common_trans.cc, src/bin/ltl2tgba.cc, src/bin/ltl2tgta.cc,
src/bin/ltlcross.cc, src/bin/ltldo.cc, src/bin/ltlfilt.cc,
src/bin/randltl.cc, src/ltlparse/ltlparse.yy,
src/ltlvisit/Makefile.am, src/ltlvisit/mark.cc,
src/ltlvisit/relabel.cc, src/ltlvisit/simplify.cc,
src/ltlvisit/snf.cc, src/ta/taexplicit.cc, src/ta/tgtaexplicit.cc,
src/taalgos/tgba2ta.cc, src/tests/equalsf.cc, src/tests/ltl2tgba.cc,
src/tests/ltlrel.cc, src/tests/randtgba.cc, src/tests/reduc.cc,
src/tests/syntimpl.cc, src/tests/tostring.cc, src/twa/bdddict.cc,
src/twa/bddprint.cc, src/twa/taatgba.cc, src/twa/taatgba.hh,
src/twa/twagraph.cc, src/twaalgos/compsusp.cc, src/twaalgos/lbtt.cc,
src/twaalgos/ltl2taa.cc, src/twaalgos/ltl2tgba_fm.cc,
src/twaalgos/neverclaim.cc, src/twaalgos/remprop.cc,
src/twaalgos/stats.cc, wrap/python/ajax/spot.in, wrap/python/spot.py,
wrap/python/spot_impl.i: Adjust.

Fixes #86.

* src/ltlvisit/lbt.hh, src/ltlvisit/lbt.cc: Delete and move contents
into...
* src/ltlvisit/tostring.hh, src/ltlvisit/tostring.cc: ... these.
* doc/org/tut01.org, src/bin/common_output.cc,
src/bin/common_trans.cc, src/bin/ltlcross.cc,
src/ltlvisit/Makefile.am, src/twaalgos/lbtt.cc,
wrap/python/spot_impl.i: Adjust.

It has two modes: strict or not.  In strict mode (tested in
hoaparse.test), the acceptance formula has to match exactly the one
given in the HOA spec.  In non-strict mode (tested in accparse2.py)
any equivalent formula is accepted.

* src/twa/acc.cc, src/twa/acc.hh (acc_cond::is_parity): New method.
* src/twaalgos/hoa.cc: Use it.
* src/tests/hoaparse.test: Test it.
* wrap/python/spot_impl.i: Bind it.
* wrap/python/tests/accparse2.py: New file.
* wrap/python/tests/Makefile.am: Add it.

* src/twa/acc.cc, src/twa/acc.hh: Add method to create
standard acceptance conditions, and adjust the parse_acc_code
to recognize them
* wrap/python/spot_impl.i (acc_cond::acc_code): Add a printer.
* wrap/python/tests/accparse.ipynb: New test file.
* wrap/python/tests/Makefile.am: Add it.
* src/tests/satmin2.test: Use the new syntax.

* wrap/python/spot_impl.i: Here.