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.

* spot/graph/ngraph.hh, spot/ltsmin/ltsmin.cc,
spot/misc/bitvect.hh, spot/misc/intvcomp.cc,
spot/misc/satsolver.cc, spot/priv/weight.cc,
spot/ta/taexplicit.cc, spot/taalgos/minimize.cc,
spot/taalgos/reachiter.cc, spot/tl/exclusive.cc,
spot/tl/formula.cc, spot/tl/formula.hh,
spot/tl/mark.cc, spot/tl/mutation.cc,
spot/tl/relabel.cc, spot/tl/remove_x.cc,
spot/tl/simplify.cc, spot/twa/acc.cc,
spot/twa/acc.hh, spot/twa/formula2bdd.cc,
spot/twa/taatgba.cc, spot/twa/taatgba.hh,
spot/twa/twa.hh, spot/twa/twagraph.cc,
spot/twaalgos/bfssteps.cc, spot/twaalgos/canonicalize.cc,
spot/twaalgos/compsusp.cc, spot/twaalgos/copy.cc,
spot/twaalgos/cycles.cc, spot/twaalgos/degen.cc,
spot/twaalgos/determinize.cc, spot/twaalgos/dtwasat.cc,
spot/twaalgos/emptiness.cc, spot/twaalgos/gv04.cc,
spot/twaalgos/hoa.cc, spot/twaalgos/ltl2taa.cc,
spot/twaalgos/ltl2tgba_fm.cc, spot/twaalgos/magic.cc,
spot/twaalgos/mask.hh, spot/twaalgos/minimize.cc,
spot/twaalgos/powerset.cc, spot/twaalgos/product.cc,
spot/twaalgos/randomgraph.cc, spot/twaalgos/reachiter.cc,
spot/twaalgos/relabel.cc, spot/twaalgos/remfin.cc,
spot/twaalgos/sccfilter.cc, spot/twaalgos/se05.cc,
spot/twaalgos/simulation.cc, spot/twaalgos/stutter.cc,
spot/twaalgos/tau03opt.cc, spot/twaalgos/totgba.cc,
spot/twaalgos/word.cc, tests/core/bitvect.cc: here.

Laurent XU authored Mar 09, 2016 and Alexandre Duret-Lutz committed Mar 10, 2016

* bin/autfilt.cc, bin/common_aoutput.cc, bin/common_aoutput.hh,
bin/common_finput.cc, bin/common_finput.hh, bin/common_hoaread.cc,
bin/common_output.cc, bin/common_output.hh, bin/common_post.cc,
bin/common_post.hh, bin/common_r.hh, bin/common_range.cc,
bin/common_range.hh, bin/common_setup.cc, bin/common_trans.cc,
bin/common_trans.hh, bin/dstar2tgba.cc, bin/genltl.cc,
bin/ltl2tgba.cc, bin/ltl2tgta.cc, bin/ltlcross.cc, bin/ltldo.cc,
bin/ltlfilt.cc, bin/ltlgrind.cc, bin/randaut.cc, bin/randltl.cc,
bin/spot-x.cc, spot/graph/graph.hh, spot/graph/ngraph.hh,
spot/kripke/kripkegraph.hh, spot/ltsmin/ltsmin.cc,
spot/ltsmin/ltsmin.hh, spot/misc/bareword.cc, spot/misc/bitvect.cc,
spot/misc/bitvect.hh, spot/misc/common.hh, spot/misc/escape.cc,
spot/misc/fixpool.hh, spot/misc/formater.cc, spot/misc/hash.hh,
spot/misc/intvcmp2.cc, spot/misc/intvcmp2.hh, spot/misc/intvcomp.cc,
spot/misc/intvcomp.hh, spot/misc/location.hh, spot/misc/minato.cc,
spot/misc/minato.hh, spot/misc/mspool.hh, spot/misc/optionmap.cc,
spot/misc/optionmap.hh, spot/misc/random.cc, spot/misc/random.hh,
spot/misc/satsolver.cc, spot/misc/satsolver.hh, spot/misc/timer.cc,
spot/misc/timer.hh, spot/misc/tmpfile.cc, spot/misc/trival.hh,
spot/parseaut/fmterror.cc, spot/parseaut/parsedecl.hh,
spot/parseaut/public.hh, spot/parsetl/fmterror.cc,
spot/parsetl/parsedecl.hh, spot/priv/accmap.hh, spot/priv/bddalloc.cc,
spot/priv/freelist.cc, spot/priv/trim.cc, spot/priv/weight.cc,
spot/priv/weight.hh, spot/ta/taexplicit.cc, spot/ta/taexplicit.hh,
spot/ta/taproduct.cc, spot/ta/taproduct.hh, spot/ta/tgtaexplicit.cc,
spot/ta/tgtaexplicit.hh, spot/ta/tgtaproduct.cc,
spot/ta/tgtaproduct.hh, spot/taalgos/dot.cc, spot/taalgos/dot.hh,
spot/taalgos/emptinessta.cc, spot/taalgos/emptinessta.hh,
spot/taalgos/minimize.cc, spot/taalgos/tgba2ta.cc,
spot/taalgos/tgba2ta.hh, spot/tl/apcollect.cc, spot/tl/contain.cc,
spot/tl/contain.hh, spot/tl/dot.cc, spot/tl/exclusive.cc,
spot/tl/exclusive.hh, spot/tl/formula.cc, spot/tl/formula.hh,
spot/tl/length.cc, spot/tl/mark.cc, spot/tl/mutation.cc,
spot/tl/mutation.hh, spot/tl/parse.hh, spot/tl/print.cc,
spot/tl/print.hh, spot/tl/randomltl.cc, spot/tl/randomltl.hh,
spot/tl/relabel.cc, spot/tl/relabel.hh, spot/tl/remove_x.cc,
spot/tl/simplify.cc, spot/tl/simplify.hh, spot/tl/snf.cc,
spot/tl/snf.hh, spot/tl/unabbrev.cc, spot/tl/unabbrev.hh,
spot/twa/acc.cc, spot/twa/acc.hh, spot/twa/bdddict.cc,
spot/twa/bdddict.hh, spot/twa/bddprint.cc, spot/twa/formula2bdd.cc,
spot/twa/formula2bdd.hh, spot/twa/taatgba.cc, spot/twa/taatgba.hh,
spot/twa/twa.cc, spot/twa/twa.hh, spot/twa/twagraph.cc,
spot/twa/twagraph.hh, spot/twa/twaproduct.cc, spot/twa/twaproduct.hh,
spot/twaalgos/are_isomorphic.cc, spot/twaalgos/are_isomorphic.hh,
spot/twaalgos/bfssteps.cc, spot/twaalgos/bfssteps.hh,
spot/twaalgos/cleanacc.cc, spot/twaalgos/complete.cc,
spot/twaalgos/compsusp.cc, spot/twaalgos/compsusp.hh,
spot/twaalgos/copy.cc, spot/twaalgos/cycles.cc,
spot/twaalgos/cycles.hh, spot/twaalgos/degen.cc,
spot/twaalgos/degen.hh, spot/twaalgos/determinize.cc,
spot/twaalgos/determinize.hh, spot/twaalgos/dot.cc,
spot/twaalgos/dot.hh, spot/twaalgos/dtbasat.cc,
spot/twaalgos/dtbasat.hh, spot/twaalgos/dtwasat.cc,
spot/twaalgos/dtwasat.hh, spot/twaalgos/emptiness.cc,
spot/twaalgos/emptiness.hh, spot/twaalgos/emptiness_stats.hh,
spot/twaalgos/gtec/ce.cc, spot/twaalgos/gtec/ce.hh,
spot/twaalgos/gtec/gtec.cc, spot/twaalgos/gtec/gtec.hh,
spot/twaalgos/gtec/sccstack.cc, spot/twaalgos/gtec/status.cc,
spot/twaalgos/gv04.cc, spot/twaalgos/hoa.cc, spot/twaalgos/hoa.hh,
spot/twaalgos/isdet.cc, spot/twaalgos/isunamb.cc,
spot/twaalgos/isweakscc.cc, spot/twaalgos/lbtt.cc,
spot/twaalgos/lbtt.hh, spot/twaalgos/ltl2taa.cc,
spot/twaalgos/ltl2taa.hh, spot/twaalgos/ltl2tgba_fm.cc,
spot/twaalgos/ltl2tgba_fm.hh, spot/twaalgos/magic.cc,
spot/twaalgos/magic.hh, spot/twaalgos/mask.cc, spot/twaalgos/mask.hh,
spot/twaalgos/minimize.cc, spot/twaalgos/minimize.hh,
spot/twaalgos/ndfs_result.hxx, spot/twaalgos/neverclaim.cc,
spot/twaalgos/neverclaim.hh, spot/twaalgos/postproc.cc,
spot/twaalgos/postproc.hh, spot/twaalgos/powerset.cc,
spot/twaalgos/powerset.hh, spot/twaalgos/product.cc,
spot/twaalgos/product.hh, spot/twaalgos/projrun.cc,
spot/twaalgos/projrun.hh, spot/twaalgos/randomgraph.cc,
spot/twaalgos/randomgraph.hh, spot/twaalgos/randomize.cc,
spot/twaalgos/randomize.hh, spot/twaalgos/reachiter.cc,
spot/twaalgos/reachiter.hh, spot/twaalgos/relabel.cc,
spot/twaalgos/relabel.hh, spot/twaalgos/remfin.cc,
spot/twaalgos/remprop.cc, spot/twaalgos/sbacc.cc,
spot/twaalgos/sccfilter.cc, spot/twaalgos/sccfilter.hh,
spot/twaalgos/sccinfo.cc, spot/twaalgos/sccinfo.hh,
spot/twaalgos/se05.cc, spot/twaalgos/se05.hh,
spot/twaalgos/sepsets.cc, spot/twaalgos/simulation.cc,
spot/twaalgos/simulation.hh, spot/twaalgos/stats.cc,
spot/twaalgos/stats.hh, spot/twaalgos/strength.cc,
spot/twaalgos/strength.hh, spot/twaalgos/stripacc.cc,
spot/twaalgos/stutter.cc, spot/twaalgos/stutter.hh,
spot/twaalgos/tau03.cc, spot/twaalgos/tau03opt.cc,
spot/twaalgos/tau03opt.hh, spot/twaalgos/totgba.cc,
spot/twaalgos/translate.cc, spot/twaalgos/word.cc, tests/core/acc.cc,
tests/core/bitvect.cc, tests/core/checkpsl.cc, tests/core/checkta.cc,
tests/core/consterm.cc, tests/core/emptchk.cc, tests/core/equalsf.cc,
tests/core/graph.cc, tests/core/ikwiad.cc, tests/core/intvcmp2.cc,
tests/core/intvcomp.cc, tests/core/kind.cc, tests/core/kripkecat.cc,
tests/core/ltlrel.cc, tests/core/ngraph.cc, tests/core/randtgba.cc,
tests/core/readltl.cc, tests/core/reduc.cc, tests/core/safra.cc,
tests/core/syntimpl.cc, tests/ltsmin/modelcheck.cc: Replace tabulars by
8 spaces.
* tests/sanity/style.test: Add checks for no tabulars in *.cc *.hh *.hxx

* 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.

* 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.

False/True are problematic in Python, and I don't like that the
enum is op::False but the constructor formula::ff().  So let's
just use ff and tt everywhere, and also eword instead of EmptyWord.

* src/ltlast/formula.hh (False, True, EmptyWord, AP, is_false, is_true):
Rename to...
(ff, tt, eword, ap, is_ff, is_tt): ... these.
* iface/ltsmin/ltsmin.cc, src/ltlast/formula.cc,
src/ltlvisit/apcollect.cc, src/ltlvisit/dot.cc, src/ltlvisit/mark.cc,
src/ltlvisit/mutation.cc, src/ltlvisit/print.cc,
src/ltlvisit/relabel.cc, src/ltlvisit/simpfg.cc,
src/ltlvisit/simplify.cc, src/ltlvisit/snf.cc, src/ltlvisit/unabbrev.cc,
src/twa/acc.cc, src/twa/acc.hh, src/twa/formula2bdd.cc,
src/twaalgos/gtec/gtec.cc, src/twaalgos/hoa.cc, src/twaalgos/ltl2taa.cc,
src/twaalgos/ltl2tgba_fm.cc, src/twaalgos/neverclaim.cc,
src/twaalgos/product.cc, src/twaalgos/remfin.cc, src/twaalgos/safety.cc,
src/tests/parseerr.test, src/tests/utf8.test, wrap/python/spot.py:
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.

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/ltlast/allnodes.hh, src/ltlast/atomic_prop.cc,
src/ltlast/atomic_prop.hh, src/ltlast/binop.cc, src/ltlast/binop.hh,
src/ltlast/bunop.cc, src/ltlast/bunop.hh, src/ltlast/constant.cc,
src/ltlast/constant.hh, src/ltlast/multop.cc, src/ltlast/multop.hh,
src/ltlast/unop.cc, src/ltlast/unop.hh, src/ltlvisit/dump.cc,
src/ltlvisit/dump.hh, src/ltlast/predecl.hh: Delete these files.  Their
feature have been merged in formula.hh and formula.cc.
* src/ltlast/visitor.hh, src/ltlvisit/clone.cc, src/ltlvisit/clone.hh,
src/ltlvisit/dump.hh, src/ltlvisit/postfix.cc, src/ltlvisit/postfix.hh:
Delete these files, as we do not use visitors anymore.
* bench/stutter/stutter_invariance_formulas.cc,
bench/stutter/stutter_invariance_randomgraph.cc, doc/org/tut01.org,
doc/org/tut02.org, doc/org/tut10.org, doc/org/tut22.org,
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_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/ltlast/Makefile.am,
src/ltlenv/declenv.cc, src/ltlenv/declenv.hh, src/ltlenv/defaultenv.cc,
src/ltlenv/defaultenv.hh, src/ltlenv/environment.hh,
src/ltlparse/ltlparse.yy, src/ltlparse/public.hh,
src/ltlvisit/Makefile.am, src/ltlvisit/apcollect.cc,
src/ltlvisit/apcollect.hh, src/ltlvisit/contain.cc,
src/ltlvisit/contain.hh, src/ltlvisit/dot.cc, src/ltlvisit/dot.hh,
src/ltlvisit/exclusive.cc, src/ltlvisit/exclusive.hh,
src/ltlvisit/length.cc, src/ltlvisit/length.hh, src/ltlvisit/mark.cc,
src/ltlvisit/mark.hh, src/ltlvisit/mutation.cc,
src/ltlvisit/mutation.hh, src/ltlvisit/nenoform.cc,
src/ltlvisit/nenoform.hh, src/ltlvisit/print.cc, src/ltlvisit/print.hh,
src/ltlvisit/randomltl.cc, src/ltlvisit/randomltl.hh,
src/ltlvisit/relabel.cc, src/ltlvisit/relabel.hh,
src/ltlvisit/remove_x.cc, src/ltlvisit/remove_x.hh,
src/ltlvisit/simpfg.cc, src/ltlvisit/simpfg.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/simplify.hh, src/ltlvisit/snf.cc,
src/ltlvisit/snf.hh, src/ltlvisit/unabbrev.cc, src/ltlvisit/unabbrev.hh,
src/parseaut/parseaut.yy, src/ta/taexplicit.cc, src/ta/tgtaexplicit.cc,
src/taalgos/minimize.cc, src/taalgos/tgba2ta.cc, src/tests/bare.test,
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/isop.test, src/tests/kind.cc, src/tests/length.cc,
src/tests/ltldo.test, src/tests/ltlfilt.test, src/tests/ltlgrind.test,
src/tests/ltlprod.cc, src/tests/ltlrel.cc,
src/tests/parse_print_test.cc, src/tests/parseaut.test,
src/tests/parseerr.test, 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/tests/utf8.test,
src/twa/acc.cc, 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.cc, 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/lbtt.cc,
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/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/ajax/spotcgi.in, wrap/python/spot.py,
wrap/python/spot_impl.i, wrap/python/Makefile.am,
wrap/python/tests/automata-io.ipynb, wrap/python/tests/formulas.ipynb,
wrap/python/tests/ltl2tgba.py, wrap/python/tests/ltlparse.py,
wrap/python/tests/ltlsimple.py, wrap/python/tests/randltl.ipynb: Adjust
to use the new interface.
* src/sanity/style.test: Accept more C++11 patterns.
* NEWS: Mention the change.

Automatic mass renaming.

* src/graphtest/tgbagraph.cc, src/tgba/acc.cc, src/tgba/acc.hh,
src/tgba/bdddict.cc, src/tgba/bdddict.hh, src/tgba/bddprint.cc,
src/tgba/bddprint.hh, src/tgba/formula2bdd.cc,
src/tgba/formula2bdd.hh, src/tgba/fwd.hh, src/tgba/Makefile.am,
src/tgba/taatgba.cc, src/tgba/taatgba.hh, src/tgba/tgba.cc,
src/tgba/tgbagraph.cc, src/tgba/tgbagraph.hh, src/tgba/tgba.hh,
src/tgba/tgbamask.cc, src/tgba/tgbamask.hh, src/tgba/tgbaproduct.cc,
src/tgba/tgbaproduct.hh, src/tgba/tgbaproxy.cc, src/tgba/tgbaproxy.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasafracomplement.hh,
src/tgba/.cvsignore: Rename as...
* src/graphtest/twagraph.cc, src/twa/acc.cc, src/twa/acc.hh,
src/twa/bdddict.cc, src/twa/bdddict.hh, src/twa/bddprint.cc,
src/twa/bddprint.hh, src/twa/formula2bdd.cc, src/twa/formula2bdd.hh,
src/twa/fwd.hh, src/twa/Makefile.am, src/twa/taatgba.cc,
src/twa/taatgba.hh, src/twa/twa.cc, src/twa/twagraph.cc,
src/twa/twagraph.hh, src/twa/twa.hh, src/twa/twamask.cc,
src/twa/twamask.hh, src/twa/twaproduct.cc, src/twa/twaproduct.hh,
src/twa/twaproxy.cc, src/twa/twaproxy.hh,
src/twa/twasafracomplement.cc, src/twa/twasafracomplement.hh,
src/twa/.cvsignore: ... these.
* README, bench/stutter/stutter_invariance_randomgraph.cc,
configure.ac, iface/ltsmin/modelcheck.cc, src/Makefile.am,
src/bin/common_aoutput.cc, src/bin/common_conv.hh,
src/bin/common_trans.hh, src/bin/dstar2tgba.cc, src/bin/ltl2tgta.cc,
src/bin/randaut.cc, src/dstarparse/dra2ba.cc,
src/dstarparse/public.hh, src/graphtest/Makefile.am,
src/graphtest/ngraph.cc, src/hoaparse/hoaparse.yy,
src/hoaparse/public.hh, src/kripke/fairkripke.hh,
src/kripke/kripkeexplicit.cc, src/kripke/kripkeprint.cc,
src/kripkeparse/kripkeparse.yy, src/ltlvisit/apcollect.cc,
src/ltlvisit/apcollect.hh, src/ltlvisit/exclusive.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/simplify.hh,
src/priv/accmap.hh, src/ta/ta.hh, src/ta/taexplicit.cc,
src/ta/taexplicit.hh, src/ta/tgta.hh, src/ta/tgtaexplicit.cc,
src/ta/tgtaexplicit.hh, src/ta/tgtaproduct.hh, src/taalgos/dotty.cc,
src/taalgos/emptinessta.cc, src/taalgos/minimize.cc,
src/taalgos/tgba2ta.cc, src/taalgos/tgba2ta.hh,
src/tgbaalgos/are_isomorphic.cc, src/tgbaalgos/are_isomorphic.hh,
src/tgbaalgos/bfssteps.cc, src/tgbaalgos/canonicalize.cc,
src/tgbaalgos/canonicalize.hh, src/tgbaalgos/cleanacc.hh,
src/tgbaalgos/complete.hh, src/tgbaalgos/compsusp.cc,
src/tgbaalgos/compsusp.hh, src/tgbaalgos/degen.cc,
src/tgbaalgos/degen.hh, src/tgbaalgos/dotty.cc,
src/tgbaalgos/dotty.hh, src/tgbaalgos/dtbasat.cc,
src/tgbaalgos/dtbasat.hh, src/tgbaalgos/dtgbacomp.hh,
src/tgbaalgos/dtgbasat.cc, src/tgbaalgos/dtgbasat.hh,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/dupexp.hh,
src/tgbaalgos/emptiness.cc, src/tgbaalgos/emptiness.hh,
src/tgbaalgos/gtec/sccstack.hh, src/tgbaalgos/gtec/status.hh,
src/tgbaalgos/gv04.cc, src/tgbaalgos/gv04.hh, src/tgbaalgos/hoa.cc,
src/tgbaalgos/hoa.hh, src/tgbaalgos/isdet.hh, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/lbtt.hh, src/tgbaalgos/ltl2taa.hh,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_fm.hh,
src/tgbaalgos/magic.cc, src/tgbaalgos/magic.hh, src/tgbaalgos/mask.hh,
src/tgbaalgos/minimize.hh, src/tgbaalgos/ndfs_result.hxx,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/neverclaim.hh,
src/tgbaalgos/postproc.hh, src/tgbaalgos/powerset.cc,
src/tgbaalgos/powerset.hh, src/tgbaalgos/product.cc,
src/tgbaalgos/product.hh, src/tgbaalgos/projrun.cc,
src/tgbaalgos/projrun.hh, src/tgbaalgos/randomgraph.cc,
src/tgbaalgos/randomgraph.hh, src/tgbaalgos/randomize.hh,
src/tgbaalgos/reachiter.hh, src/tgbaalgos/reducerun.cc,
src/tgbaalgos/reducerun.hh, src/tgbaalgos/relabel.hh,
src/tgbaalgos/remfin.hh, src/tgbaalgos/remprop.hh,
src/tgbaalgos/replayrun.cc, src/tgbaalgos/replayrun.hh,
src/tgbaalgos/sbacc.hh, src/tgbaalgos/scc.cc, src/tgbaalgos/scc.hh,
src/tgbaalgos/sccfilter.hh, src/tgbaalgos/sccinfo.cc,
src/tgbaalgos/sccinfo.hh, src/tgbaalgos/se05.cc,
src/tgbaalgos/se05.hh, src/tgbaalgos/simulation.cc,
src/tgbaalgos/simulation.hh, src/tgbaalgos/stats.cc,
src/tgbaalgos/stats.hh, src/tgbaalgos/stripacc.hh,
src/tgbaalgos/stutter.cc, src/tgbaalgos/stutter.hh,
src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03.hh,
src/tgbaalgos/tau03opt.cc, src/tgbaalgos/tau03opt.hh,
src/tgbaalgos/totgba.cc, src/tgbaalgos/totgba.hh,
src/tgbaalgos/weight.hh, src/tgbaalgos/word.cc, src/tgbatest/acc.cc,
src/tgbatest/complementation.cc, src/tgbatest/emptchk.cc,
src/tgbatest/ltl2tgba.cc, src/tgbatest/taatgba.cc,
wrap/python/spot_impl.i: Adjust.

* src/ltlast/unop.cc, src/ltlast/unop.hh src/ltlvisit/lbt.cc,
src/ltlvisit/mark.cc, src/ltlvisit/simplify.cc,
src/ltlvisit/tostring.cc, src/ltlvisit/tunabbrev.cc,
src/tgba/formula2bdd.cc, src/tgbaalgos/ltl2tgba_fm.cc: Remove Finish.
* src/tgbaalgos/ltl2taa.cc: Remove Finish, and simply use an empty
destination to code the sink.

* iface/dve2/dve2.cc, iface/dve2/dve2.hh,
src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/ltlvisit/contain.cc, src/ltlvisit/contain.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/simplify.hh,
src/tgba/bddprint.cc, src/tgba/bddprint.hh, src/tgba/formula2bdd.cc,
src/tgba/formula2bdd.hh, src/tgba/taatgba.cc, src/tgba/taatgba.hh,
src/tgba/tgbagraph.hh, src/tgbaalgos/compsusp.cc,
src/tgbaalgos/compsusp.hh, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/lbtt.hh, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/randomgraph.cc,
src/tgbaalgos/randomgraph.hh, src/tgbaalgos/translate.cc,
src/tgbaalgos/translate.hh, src/tgbaalgos/word.cc,
src/tgbaalgos/word.hh: Pass shared_ptr to functions by const ref.

* src/tgba/bdddict.hh (bdd_dict_ptr): New type.
(make_bdd_dict): New function.
* iface/dve2/dve2.cc, iface/dve2/dve2.hh, iface/dve2/dve2check.cc,
src/bin/dstar2tgba.cc, src/bin/ltlcross.cc,
src/dstarparse/dstarparse.yy, src/dstarparse/public.hh,
src/graphtest/tgbagraph.cc, src/kripke/kripkeexplicit.cc,
src/kripke/kripkeexplicit.hh, src/kripke/kripkeprint.cc,
src/kripkeparse/kripkeparse.yy, src/kripkeparse/public.hh,
src/kripketest/parse_print_test.cc, src/ltlvisit/apcollect.cc,
src/ltlvisit/contain.cc, src/ltlvisit/contain.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/simplify.hh,
src/neverparse/neverclaimparse.yy, src/neverparse/public.hh,
src/priv/accmap.hh, src/saba/saba.hh, src/saba/sabacomplementtgba.cc,
src/saba/sabacomplementtgba.hh, src/sabatest/sabacomplementtgba.cc,
src/ta/ta.hh, src/ta/taexplicit.cc, src/ta/taexplicit.hh,
src/ta/taproduct.cc, src/ta/taproduct.hh, src/ta/tgtaexplicit.cc,
src/ta/tgtaexplicit.hh, src/taalgos/dotty.cc, src/tgba/bddprint.cc,
src/tgba/bddprint.hh, src/tgba/formula2bdd.cc, src/tgba/formula2bdd.hh,
src/tgba/taatgba.cc, src/tgba/taatgba.hh, src/tgba/tgba.hh,
src/tgba/tgbagraph.hh, src/tgba/tgbakvcomplement.cc,
src/tgba/tgbakvcomplement.hh, src/tgba/tgbaproduct.cc,
src/tgba/tgbaproduct.hh, src/tgba/tgbaproxy.cc, src/tgba/tgbaproxy.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasafracomplement.hh,
src/tgba/tgbascc.cc, src/tgba/tgbascc.hh, src/tgba/tgbasgba.cc,
src/tgba/tgbasgba.hh, src/tgba/tgbaunion.cc, src/tgba/tgbaunion.hh,
src/tgba/wdbacomp.cc, src/tgbaalgos/compsusp.cc,
src/tgbaalgos/compsusp.hh, src/tgbaalgos/degen.cc,
src/tgbaalgos/dtbasat.cc, src/tgbaalgos/dtgbasat.cc,
src/tgbaalgos/emptiness.cc, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/lbtt.hh, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2taa.hh, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/randomgraph.cc,
src/tgbaalgos/randomgraph.hh, src/tgbaalgos/save.cc,
src/tgbaalgos/translate.cc, src/tgbaalgos/translate.hh,
src/tgbaalgos/word.cc, src/tgbaalgos/word.hh, src/tgbaparse/public.hh,
src/tgbaparse/tgbaparse.yy, src/tgbatest/complementation.cc,
src/tgbatest/explprod.cc, src/tgbatest/ltl2tgba.cc,
src/tgbatest/ltlprod.cc, src/tgbatest/maskacc.cc,
src/tgbatest/powerset.cc, src/tgbatest/randtgba.cc,
src/tgbatest/taatgba.cc, src/tgbatest/tgbaread.cc,
src/tgbatest/tripprod.cc, wrap/python/ajax/spot.in,
wrap/python/tests/alarm.py, wrap/python/tests/ltl2tgba.py,
wrap/python/tests/parsetgba.py: Update to use bdd_dict_ptr and
make_bdd_dict().

This was only used in ELTL stuff, which I just removed because it was
unused.

* src/ltlast/automatop.cc, src/ltlast/automatop.hh,
src/ltlast/formula_tree.cc, src/ltlast/formula_tree.hh,
src/ltlast/nfa.cc, src/ltlast/nfa.hh: Delete.
* src/ltlast/Makefile.am: Adjust.
* src/ltlast/allnodes.hh, src/ltlast/formula.hh, src/ltlast/predecl.hh,
src/ltlast/visitor.hh, src/ltltest/equals.cc, src/ltltest/ltlrel.cc,
src/ltltest/reduc.cc, src/ltlvisit/clone.cc, src/ltlvisit/clone.hh,
src/ltlvisit/dotty.cc, src/ltlvisit/lbt.cc, src/ltlvisit/mark.cc,
src/ltlvisit/postfix.cc, src/ltlvisit/postfix.hh,
src/ltlvisit/relabel.cc, src/ltlvisit/simplify.cc, src/ltlvisit/snf.cc,
src/ltlvisit/tostring.cc, src/tgba/formula2bdd.cc,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_lacim.cc, src/tgbatest/ltl2tgba.cc,
iface/dve2/dve2check.cc: Remove all references to automatop.

* src/misc/common.hh (SPOT_UNIMPLEMENTED, SPOT_UNREACHABLE,
SPOT_UNREACHABLE_BUILTIN): New macros.
* src/bin/dstar2tgba.cc, src/bin/ltlcross.cc,
src/dstarparse/dstar2tgba.cc, src/eltlparse/eltlparse.yy,
src/ltlast/binop.cc, src/ltlast/bunop.cc, src/ltlast/constant.cc,
src/ltlast/formula_tree.cc, src/ltlast/multop.cc, src/ltlast/nfa.cc,
src/ltlast/unop.cc, src/ltlvisit/dotty.cc, src/ltlvisit/lbt.cc,
src/ltlvisit/lunabbrev.cc, src/ltlvisit/mark.cc,
src/ltlvisit/randomltl.cc, src/ltlvisit/simpfg.cc,
src/ltlvisit/simplify.cc, src/ltlvisit/snf.cc, src/ltlvisit/tostring.cc,
src/misc/intvcomp.cc, src/misc/minato.cc, src/tgba/bdddict.cc,
src/tgba/formula2bdd.cc, src/tgba/tgbasafracomplement.cc,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_lacim.cc,
src/tgbaalgos/simulation.cc, src/tgbatest/ltl2tgba.cc:  Use them.
* src/sanity/style.test: Catch assert(0) and assert(!"text");

* NEWS: Mention this.
* COPYING: Replace by GPL v3.
* src/sanity/style.test: Check files with the wrong license,
in case we forgot to update it during a merge.
* Makefile.am, bench/Makefile.am, bench/emptchk/Makefile.am,
bench/emptchk/defs.in, bench/emptchk/ltl-human.sh,
bench/emptchk/ltl-random.sh, bench/emptchk/pml-clserv.sh,
bench/emptchk/pml-eeaean.sh, bench/emptchk/pml2tgba.pl,
bench/ltl2tgba/big, bench/ltl2tgba/defs.in, bench/ltl2tgba/known,
bench/ltl2tgba/lbtt2csv.pl, bench/ltl2tgba/ltl2baw.in,
bench/ltl2tgba/parseout.pl, bench/ltl2tgba/small,
bench/ltlclasses/Makefile.am, bench/ltlclasses/defs.in,
bench/ltlclasses/run, bench/ltlcounter/Makefile.am,
bench/ltlcounter/defs.in, bench/ltlcounter/run,
bench/scc-stats/Makefile.am, bench/scc-stats/stats.cc,
bench/split-product/Makefile.am, bench/split-product/cutscc.cc,
bench/split-product/pml2tgba.pl, bench/wdba/Makefile.am,
bench/wdba/defs.in, bench/wdba/run, configure.ac, doc/Makefile.am,
doc/dot.in, doc/tl/Makefile.am, iface/Makefile.am,
iface/dve2/Makefile.am, iface/dve2/defs.in, iface/dve2/dve2.cc,
iface/dve2/dve2.hh, iface/dve2/dve2check.cc,
iface/dve2/dve2check.test, iface/dve2/finite.test,
iface/dve2/kripke.test, iface/gspn/Makefile.am, iface/gspn/common.cc,
iface/gspn/common.hh, iface/gspn/dcswave.test,
iface/gspn/dcswaveeltl.test, iface/gspn/dcswavefm.test,
iface/gspn/dcswaveltl.test, iface/gspn/dottygspn.cc,
iface/gspn/dottyssp.cc, iface/gspn/gspn.cc, iface/gspn/gspn.hh,
iface/gspn/ltlgspn.cc, iface/gspn/simple.test, iface/gspn/ssp.cc,
iface/gspn/ssp.hh, iface/gspn/udcsefm.test, iface/gspn/udcseltl.test,
iface/gspn/udcsfm.test, iface/gspn/udcsltl.test, src/Makefile.am,
src/bin/Makefile.am, src/bin/common_cout.cc, src/bin/common_cout.hh,
src/bin/common_finput.cc, src/bin/common_finput.hh,
src/bin/common_output.cc, src/bin/common_output.hh,
src/bin/common_post.cc, src/bin/common_post.hh, src/bin/common_r.cc,
src/bin/common_r.hh, src/bin/common_range.cc, src/bin/common_range.hh,
src/bin/common_setup.cc, src/bin/common_setup.hh,
src/bin/common_sys.hh, src/bin/genltl.cc, src/bin/ltl2tgba.cc,
src/bin/ltl2tgta.cc, src/bin/ltlfilt.cc, src/bin/man/Makefile.am,
src/bin/randltl.cc, src/eltlparse/Makefile.am,
src/eltlparse/eltlparse.yy, src/eltlparse/eltlscan.ll,
src/eltlparse/fmterror.cc, src/eltlparse/parsedecl.hh,
src/eltlparse/public.hh, src/eltltest/Makefile.am,
src/eltltest/acc.cc, src/eltltest/acc.test, src/eltltest/defs.in,
src/eltltest/nfa.cc, src/eltltest/nfa.test, src/evtgba/Makefile.am,
src/evtgba/evtgba.cc, src/evtgba/evtgba.hh, src/evtgba/evtgbaiter.hh,
src/evtgba/explicit.cc, src/evtgba/explicit.hh, src/evtgba/product.cc,
src/evtgba/product.hh, src/evtgba/symbol.cc, src/evtgba/symbol.hh,
src/evtgbaalgos/Makefile.am, src/evtgbaalgos/dotty.cc,
src/evtgbaalgos/dotty.hh, src/evtgbaalgos/reachiter.cc,
src/evtgbaalgos/reachiter.hh, src/evtgbaalgos/save.cc,
src/evtgbaalgos/save.hh, src/evtgbaalgos/tgba2evtgba.cc,
src/evtgbaalgos/tgba2evtgba.hh, src/evtgbaparse/Makefile.am,
src/evtgbaparse/evtgbaparse.yy, src/evtgbaparse/evtgbascan.ll,
src/evtgbaparse/fmterror.cc, src/evtgbaparse/parsedecl.hh,
src/evtgbaparse/public.hh, src/evtgbatest/Makefile.am,
src/evtgbatest/defs.in, src/evtgbatest/explicit.cc,
src/evtgbatest/explicit.test, src/evtgbatest/ltl2evtgba.cc,
src/evtgbatest/ltl2evtgba.test, src/evtgbatest/product.cc,
src/evtgbatest/product.test, src/evtgbatest/readsave.cc,
src/evtgbatest/readsave.test, src/kripke/Makefile.am,
src/kripke/fairkripke.cc, src/kripke/fairkripke.hh,
src/kripke/kripke.cc, src/kripke/kripke.hh,
src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/kripke/kripkeprint.cc, src/kripke/kripkeprint.hh,
src/kripkeparse/Makefile.am, src/kripkeparse/fmterror.cc,
src/kripkeparse/kripkeparse.yy, src/kripkeparse/kripkescan.ll,
src/kripkeparse/parsedecl.hh, src/kripkeparse/public.hh,
src/kripkeparse/scankripke.ll, src/kripketest/Makefile.am,
src/kripketest/bad_parsing.test, src/kripketest/defs.in,
src/kripketest/kripke.test, src/kripketest/parse_print_test.cc,
src/ltlast/Makefile.am, src/ltlast/allnodes.hh,
src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlast/automatop.cc, src/ltlast/automatop.hh, src/ltlast/binop.cc,
src/ltlast/binop.hh, src/ltlast/bunop.cc, src/ltlast/bunop.hh,
src/ltlast/constant.cc, src/ltlast/constant.hh, src/ltlast/formula.cc,
src/ltlast/formula.hh, src/ltlast/formula_tree.cc,
src/ltlast/formula_tree.hh, src/ltlast/multop.cc,
src/ltlast/multop.hh, src/ltlast/nfa.cc, src/ltlast/nfa.hh,
src/ltlast/predecl.hh, src/ltlast/refformula.cc,
src/ltlast/refformula.hh, src/ltlast/unop.cc, src/ltlast/unop.hh,
src/ltlast/visitor.hh, src/ltlenv/Makefile.am, src/ltlenv/declenv.cc,
src/ltlenv/declenv.hh, src/ltlenv/defaultenv.cc,
src/ltlenv/defaultenv.hh, src/ltlenv/environment.hh,
src/ltlparse/Makefile.am, src/ltlparse/fmterror.cc,
src/ltlparse/ltlfile.cc, src/ltlparse/ltlfile.hh,
src/ltlparse/ltlparse.yy, src/ltlparse/ltlscan.ll,
src/ltlparse/parsedecl.hh, src/ltlparse/public.hh,
src/ltltest/Makefile.am, src/ltltest/consterm.cc,
src/ltltest/consterm.test, src/ltltest/defs.in, src/ltltest/equals.cc,
src/ltltest/equals.test, src/ltltest/kind.cc, src/ltltest/kind.test,
src/ltltest/length.cc, src/ltltest/length.test,
src/ltltest/lunabbrev.test, src/ltltest/nenoform.test,
src/ltltest/parse.test, src/ltltest/parseerr.test,
src/ltltest/readltl.cc, src/ltltest/reduc.cc, src/ltltest/reduc.test,
src/ltltest/reduccmp.test, src/ltltest/reducpsl.test,
src/ltltest/syntimpl.cc, src/ltltest/syntimpl.test,
src/ltltest/tostring.cc, src/ltltest/tostring.test,
src/ltltest/tunabbrev.test, src/ltltest/tunenoform.test,
src/ltltest/utf8.test, src/ltltest/uwrm.test,
src/ltlvisit/Makefile.am, src/ltlvisit/apcollect.cc,
src/ltlvisit/apcollect.hh, src/ltlvisit/clone.cc,
src/ltlvisit/clone.hh, src/ltlvisit/contain.cc,
src/ltlvisit/contain.hh, src/ltlvisit/destroy.cc,
src/ltlvisit/destroy.hh, src/ltlvisit/dotty.cc, src/ltlvisit/dotty.hh,
src/ltlvisit/dump.cc, src/ltlvisit/dump.hh, src/ltlvisit/lbt.cc,
src/ltlvisit/lbt.hh, src/ltlvisit/length.cc, src/ltlvisit/length.hh,
src/ltlvisit/lunabbrev.cc, src/ltlvisit/lunabbrev.hh,
src/ltlvisit/mark.cc, src/ltlvisit/mark.hh, src/ltlvisit/nenoform.cc,
src/ltlvisit/nenoform.hh, src/ltlvisit/postfix.cc,
src/ltlvisit/postfix.hh, src/ltlvisit/randomltl.cc,
src/ltlvisit/randomltl.hh, src/ltlvisit/reduce.cc,
src/ltlvisit/reduce.hh, src/ltlvisit/relabel.cc,
src/ltlvisit/relabel.hh, src/ltlvisit/simpfg.cc,
src/ltlvisit/simpfg.hh, src/ltlvisit/simplify.cc,
src/ltlvisit/simplify.hh, src/ltlvisit/snf.cc, src/ltlvisit/snf.hh,
src/ltlvisit/tostring.cc, src/ltlvisit/tostring.hh,
src/ltlvisit/tunabbrev.cc, src/ltlvisit/tunabbrev.hh,
src/ltlvisit/wmunabbrev.cc, src/ltlvisit/wmunabbrev.hh,
src/misc/Makefile.am, src/misc/acccompl.cc, src/misc/acccompl.hh,
src/misc/accconv.cc, src/misc/accconv.hh, src/misc/bareword.cc,
src/misc/bareword.hh, src/misc/bddalloc.cc, src/misc/bddalloc.hh,
src/misc/bddlt.hh, src/misc/bddop.cc, src/misc/bddop.hh,
src/misc/casts.hh, src/misc/escape.cc, src/misc/escape.hh,
src/misc/fixpool.hh, src/misc/freelist.cc, src/misc/freelist.hh,
src/misc/hash.hh, src/misc/hashfunc.hh, src/misc/intvcmp2.cc,
src/misc/intvcmp2.hh, src/misc/intvcomp.cc, src/misc/intvcomp.hh,
src/misc/ltstr.hh, src/misc/memusage.cc, src/misc/memusage.hh,
src/misc/minato.cc, src/misc/minato.hh, src/misc/modgray.cc,
src/misc/modgray.hh, src/misc/mspool.hh, src/misc/optionmap.cc,
src/misc/optionmap.hh, src/misc/random.cc, src/misc/random.hh,
src/misc/timer.cc, src/misc/timer.hh, src/misc/unique_ptr.hh,
src/misc/version.cc, src/misc/version.hh, src/neverparse/Makefile.am,
src/neverparse/fmterror.cc, src/neverparse/neverclaimparse.yy,
src/neverparse/neverclaimscan.ll, src/neverparse/parsedecl.hh,
src/neverparse/public.hh, src/saba/Makefile.am,
src/saba/explicitstateconjunction.cc,
src/saba/explicitstateconjunction.hh, src/saba/saba.cc,
src/saba/saba.hh, src/saba/sabacomplementtgba.cc,
src/saba/sabacomplementtgba.hh, src/saba/sabastate.hh,
src/saba/sabasucciter.hh, src/sabaalgos/Makefile.am,
src/sabaalgos/sabadotty.cc, src/sabaalgos/sabadotty.hh,
src/sabaalgos/sabareachiter.cc, src/sabaalgos/sabareachiter.hh,
src/sabatest/Makefile.am, src/sabatest/defs.in,
src/sabatest/sabacomplementtgba.cc, src/sanity/Makefile.am,
src/sanity/readme.test, src/sanity/style.test, src/ta/Makefile.am,
src/ta/ta.cc, src/ta/ta.hh, src/ta/taexplicit.cc,
src/ta/taexplicit.hh, src/ta/taproduct.cc, src/ta/taproduct.hh,
src/ta/tgta.cc, src/ta/tgta.hh, src/ta/tgtaexplicit.cc,
src/ta/tgtaexplicit.hh, src/ta/tgtaproduct.cc, src/ta/tgtaproduct.hh,
src/taalgos/Makefile.am, src/taalgos/dotty.cc, src/taalgos/dotty.hh,
src/taalgos/emptinessta.cc, src/taalgos/emptinessta.hh,
src/taalgos/minimize.cc, src/taalgos/minimize.hh,
src/taalgos/reachiter.cc, src/taalgos/reachiter.hh,
src/taalgos/statessetbuilder.cc, src/taalgos/statessetbuilder.hh,
src/taalgos/stats.cc, src/taalgos/stats.hh, src/taalgos/tgba2ta.cc,
src/taalgos/tgba2ta.hh, src/tgba/Makefile.am, src/tgba/bdddict.cc,
src/tgba/bdddict.hh, src/tgba/bddprint.cc, src/tgba/bddprint.hh,
src/tgba/formula2bdd.cc, src/tgba/formula2bdd.hh,
src/tgba/futurecondcol.cc, src/tgba/futurecondcol.hh,
src/tgba/public.hh, src/tgba/sba.hh, src/tgba/state.hh,
src/tgba/statebdd.cc, src/tgba/statebdd.hh, src/tgba/succiter.hh,
src/tgba/succiterconcrete.cc, src/tgba/succiterconcrete.hh,
src/tgba/taatgba.cc, src/tgba/taatgba.hh, src/tgba/tgba.cc,
src/tgba/tgba.hh, src/tgba/tgbabddconcrete.cc,
src/tgba/tgbabddconcrete.hh, src/tgba/tgbabddconcretefactory.cc,
src/tgba/tgbabddconcretefactory.hh,
src/tgba/tgbabddconcreteproduct.cc,
src/tgba/tgbabddconcreteproduct.hh, src/tgba/tgbabddcoredata.cc,
src/tgba/tgbabddcoredata.hh, src/tgba/tgbabddfactory.hh,
src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh,
src/tgba/tgbakvcomplement.cc, src/tgba/tgbakvcomplement.hh,
src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasafracomplement.hh,
src/tgba/tgbascc.cc, src/tgba/tgbascc.hh, src/tgba/tgbasgba.cc,
src/tgba/tgbasgba.hh, src/tgba/tgbatba.cc, src/tgba/tgbatba.hh,
src/tgba/tgbaunion.cc, src/tgba/tgbaunion.hh, src/tgba/wdbacomp.cc,
src/tgba/wdbacomp.hh, src/tgbaalgos/Makefile.am,
src/tgbaalgos/bfssteps.cc, src/tgbaalgos/bfssteps.hh,
src/tgbaalgos/cutscc.cc, src/tgbaalgos/cutscc.hh,
src/tgbaalgos/cycles.cc, src/tgbaalgos/cycles.hh,
src/tgbaalgos/degen.cc, src/tgbaalgos/degen.hh,
src/tgbaalgos/dotty.cc, src/tgbaalgos/dotty.hh,
src/tgbaalgos/dottydec.cc, src/tgbaalgos/dottydec.hh,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/dupexp.hh,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/eltl2tgba_lacim.hh,
src/tgbaalgos/emptiness.cc, src/tgbaalgos/emptiness.hh,
src/tgbaalgos/emptiness_stats.hh, src/tgbaalgos/gtec/Makefile.am,
src/tgbaalgos/gtec/ce.cc, src/tgbaalgos/gtec/ce.hh,
src/tgbaalgos/gtec/explscc.cc, src/tgbaalgos/gtec/explscc.hh,
src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/gtec.hh,
src/tgbaalgos/gtec/nsheap.cc, src/tgbaalgos/gtec/nsheap.hh,
src/tgbaalgos/gtec/sccstack.cc, src/tgbaalgos/gtec/sccstack.hh,
src/tgbaalgos/gtec/status.cc, src/tgbaalgos/gtec/status.hh,
src/tgbaalgos/gv04.cc, src/tgbaalgos/gv04.hh, src/tgbaalgos/isdet.cc,
src/tgbaalgos/isdet.hh, src/tgbaalgos/isweakscc.cc,
src/tgbaalgos/isweakscc.hh, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/lbtt.hh, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2taa.hh, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/ltl2tgba_lacim.cc,
src/tgbaalgos/ltl2tgba_lacim.hh, src/tgbaalgos/magic.cc,
src/tgbaalgos/magic.hh, src/tgbaalgos/minimize.cc,
src/tgbaalgos/minimize.hh, src/tgbaalgos/ndfs_result.hxx,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/neverclaim.hh,
src/tgbaalgos/postproc.cc, src/tgbaalgos/postproc.hh,
src/tgbaalgos/powerset.cc, src/tgbaalgos/powerset.hh,
src/tgbaalgos/projrun.cc, src/tgbaalgos/projrun.hh,
src/tgbaalgos/randomgraph.cc, src/tgbaalgos/randomgraph.hh,
src/tgbaalgos/reachiter.cc, src/tgbaalgos/reachiter.hh,
src/tgbaalgos/reducerun.cc, src/tgbaalgos/reducerun.hh,
src/tgbaalgos/reductgba_sim.cc, src/tgbaalgos/reductgba_sim.hh,
src/tgbaalgos/replayrun.cc, src/tgbaalgos/replayrun.hh,
src/tgbaalgos/rundotdec.cc, src/tgbaalgos/rundotdec.hh,
src/tgbaalgos/safety.cc, src/tgbaalgos/safety.hh,
src/tgbaalgos/save.cc, src/tgbaalgos/save.hh, src/tgbaalgos/scc.cc,
src/tgbaalgos/scc.hh, src/tgbaalgos/sccfilter.cc,
src/tgbaalgos/sccfilter.hh, src/tgbaalgos/se05.cc,
src/tgbaalgos/se05.hh, src/tgbaalgos/simulation.cc,
src/tgbaalgos/simulation.hh, src/tgbaalgos/stats.cc,
src/tgbaalgos/stats.hh, src/tgbaalgos/tau03.cc,
src/tgbaalgos/tau03.hh, src/tgbaalgos/tau03opt.cc,
src/tgbaalgos/tau03opt.hh, src/tgbaalgos/weight.cc,
src/tgbaalgos/weight.hh, src/tgbaparse/Makefile.am,
src/tgbaparse/fmterror.cc, src/tgbaparse/parsedecl.hh,
src/tgbaparse/public.hh, src/tgbaparse/tgbaparse.yy,
src/tgbaparse/tgbascan.ll, src/tgbatest/Makefile.am,
src/tgbatest/babiak.test, src/tgbatest/bddprod.test,
src/tgbatest/complementation.cc, src/tgbatest/complementation.test,
src/tgbatest/cycles.test, src/tgbatest/defs.in,
src/tgbatest/degendet.test, src/tgbatest/degenid.test,
src/tgbatest/dfs.test, src/tgbatest/dupexp.test,
src/tgbatest/eltl2tgba.test, src/tgbatest/emptchk.test,
src/tgbatest/emptchke.test, src/tgbatest/emptchkr.test,
src/tgbatest/explicit.cc, src/tgbatest/explicit.test,
src/tgbatest/explicit2.cc, src/tgbatest/explicit2.test,
src/tgbatest/explpro2.test, src/tgbatest/explpro3.test,
src/tgbatest/explpro4.test, src/tgbatest/explprod.cc,
src/tgbatest/explprod.test, src/tgbatest/intvcmp2.cc,
src/tgbatest/intvcomp.cc, src/tgbatest/intvcomp.test,
src/tgbatest/kv.test, src/tgbatest/ltl2neverclaim.test,
src/tgbatest/ltl2ta.test, src/tgbatest/ltl2tgba.cc,
src/tgbatest/ltl2tgba.test, src/tgbatest/ltlcounter.test,
src/tgbatest/ltlprod.cc, src/tgbatest/ltlprod.test,
src/tgbatest/mixprod.cc, src/tgbatest/mixprod.test,
src/tgbatest/neverclaimread.test, src/tgbatest/nondet.test,
src/tgbatest/obligation.test, src/tgbatest/powerset.cc,
src/tgbatest/randpsl.test, src/tgbatest/randtgba.cc,
src/tgbatest/randtgba.test, src/tgbatest/readsave.test,
src/tgbatest/renault.test, src/tgbatest/scc.test,
src/tgbatest/sccsimpl.test, src/tgbatest/spotlbtt.test,
src/tgbatest/spotlbtt2.test, src/tgbatest/taatgba.cc,
src/tgbatest/taatgba.test, src/tgbatest/tgbaread.cc,
src/tgbatest/tgbaread.test, src/tgbatest/tripprod.cc,
src/tgbatest/tripprod.test, src/tgbatest/wdba.test,
src/tgbatest/wdba2.test, wrap/Makefile.am, wrap/python/Makefile.am,
wrap/python/ajax/Makefile.am, wrap/python/ajax/spot.in,
wrap/python/buddy.i, wrap/python/spot.i,
wrap/python/tests/Makefile.am, wrap/python/tests/alarm.py,
wrap/python/tests/bddnqueen.py, wrap/python/tests/implies.py,
wrap/python/tests/interdep.py, wrap/python/tests/ltl2tgba.py,
wrap/python/tests/ltl2tgba.test, wrap/python/tests/ltlparse.py,
wrap/python/tests/ltlsimple.py, wrap/python/tests/minato.py,
wrap/python/tests/modgray.py, wrap/python/tests/optionmap.py,
wrap/python/tests/parsetgba.py, wrap/python/tests/run.in,
wrap/python/tests/setxor.py: Update licence version, and replace the
FSF address by a URL.

* src/tgba/bdddict.hh, src/tgba/bdddict.cc: Store variable types and
associated formula in a vector indexed by BDD variable numbers,
instead of using several maps.
* src/evtgbaalgos/tgba2evtgba.cc, src/tgba/bddprint.cc,
src/tgba/formula2bdd.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/save.cc: Adjust usage.

We need a marked version of !{r} to perform breakpoint unroling.

* src/ltlast/unop.cc, src/ltlast/unop.hh: Declare a NegClosureMarked
operator.
* src/ltlvisit/mark.hh, src/ltlvisit/mark.cc,
src/tgbaalgos/ltl2tgba_fm.cc: Adjust to deal with NegClosureMarked
and NegClosure as apropriate.
* src/ltlvisit/simplify.cc, src/ltlvisit/tostring.cc,
src/ltlvisit/tunabbrev.cc, src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_lacim.cc,
src/tgba/formula2bdd.cc: Deal with NegClosureMarked in the same way as
we deal with NegClosure.
* src/tgbatest/ltl2tgba.test: More tests.
* src/ltltest/kind.test: Adjust.
* doc/tl/tl.tex: Mention the marked negated closure.

The distinction makes no sense since Spot 0.5, where we switched from
mutable furmulae to immutable formulae.  The difference between
const_visitor and visitor made no sense either.  They have been merged
into one: visitor.

* iface/dve2/dve2check.cc, iface/gspn/ltlgspn.cc,
src/eltlparse/eltlparse.yy, src/eltlparse/public.hh,
src/evtgbatest/ltl2evtgba.cc, src/kripkeparse/kripkeparse.yy,
src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlast/automatop.cc, src/ltlast/automatop.hh, src/ltlast/binop.cc,
src/ltlast/binop.hh, src/ltlast/bunop.cc, src/ltlast/bunop.hh,
src/ltlast/constant.cc, src/ltlast/constant.hh, src/ltlast/formula.cc,
src/ltlast/formula.hh, src/ltlast/formula_tree.cc,
src/ltlast/formula_tree.hh, src/ltlast/multop.cc,
src/ltlast/multop.hh, src/ltlast/predecl.hh, src/ltlast/refformula.cc,
src/ltlast/refformula.hh, src/ltlast/unop.cc, src/ltlast/unop.hh,
src/ltlast/visitor.hh, src/ltlenv/declenv.cc, src/ltlenv/declenv.hh,
src/ltlenv/defaultenv.cc, src/ltlenv/defaultenv.hh,
src/ltlenv/environment.hh, src/ltlparse/ltlfile.cc,
src/ltlparse/ltlfile.hh, src/ltlparse/ltlparse.yy,
src/ltlparse/public.hh, src/ltltest/consterm.cc,
src/ltltest/equals.cc, src/ltltest/genltl.cc, src/ltltest/kind.cc,
src/ltltest/length.cc, src/ltltest/randltl.cc, src/ltltest/readltl.cc,
src/ltltest/reduc.cc, src/ltltest/syntimpl.cc,
src/ltltest/tostring.cc, src/ltlvisit/apcollect.cc,
src/ltlvisit/apcollect.hh, src/ltlvisit/clone.cc,
src/ltlvisit/clone.hh, src/ltlvisit/contain.cc,
src/ltlvisit/contain.hh, src/ltlvisit/dotty.cc,
src/ltlvisit/length.cc, src/ltlvisit/lunabbrev.cc,
src/ltlvisit/lunabbrev.hh, src/ltlvisit/mark.cc, src/ltlvisit/mark.hh,
src/ltlvisit/nenoform.cc, src/ltlvisit/nenoform.hh,
src/ltlvisit/postfix.cc, src/ltlvisit/postfix.hh,
src/ltlvisit/randomltl.cc, src/ltlvisit/randomltl.hh,
src/ltlvisit/reduce.cc, src/ltlvisit/reduce.hh,
src/ltlvisit/simpfg.cc, src/ltlvisit/simpfg.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/simplify.hh,
src/ltlvisit/snf.cc, src/ltlvisit/snf.hh, src/ltlvisit/tostring.cc,
src/ltlvisit/tunabbrev.cc, src/ltlvisit/tunabbrev.hh,
src/ltlvisit/wmunabbrev.cc, src/ltlvisit/wmunabbrev.hh,
src/neverparse/neverclaimparse.yy, src/sabatest/sabacomplementtgba.cc,
src/tgba/bdddict.cc, src/tgba/formula2bdd.cc, src/tgba/taatgba.cc,
src/tgba/taatgba.hh, src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_lacim.cc, src/tgbaalgos/minimize.cc,
src/tgbaalgos/randomgraph.cc, src/tgbaparse/tgbaparse.yy,
src/tgbatest/complementation.cc, src/tgbatest/ltl2tgba.cc,
src/tgbatest/ltlprod.cc, src/tgbatest/mixprod.cc,
src/tgbatest/randtgba.cc: Massive adjustment!
* src/tgbatest/reductgba.cc: Delete.

It was a mistake to try to overload And/Or LTL operator for these when
trivial simplification are performed.  The reason is so simple it is
embarassing: And(f,1)=f is a trivial identity that should not be
applied with AndRat.  E.g. AndRat(a;b, 1) is equal to 0, not a;b.

* src/ltlast/multop.hh, src/ltlast/multop.cc: Add the AndRat and OrRat
operators.
* src/ltlparse/ltlparse.yy: Build them.
* src/ltlvisit/mark.cc, src/ltlvisit/simplify.cc,
src/ltlvisit/tostring.cc, src/tgba/formula2bdd.cc,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_lacim.cc:
Adjust all switches.

* src/ltlast/bunop.hh, src/ltlast/bunop.cc: New files for
bounded unary operators.
* src/ltlast/Makefile.am, src/ltlast/allnodes.hh: Add them.
* src/ltlast/predecl.hh (bunop): Declare.
* src/ltlast/unop.hh, src/ltlast/unop.cc (Star): Remove
declaration of Star and associated code.
* src/ltlast/visitor.hh: Add visit(bunop* node) methods.
* src/ltlparse/ltlparse.yy, src/ltlparse/ltlscan.ll: Add parse
rules for LTL.  This required passing the parse_error list
to the lexer, so it can report scanning errors when it reads
a number that does not fit in an unsigned int.
* src/ltlparse/parsedecl.hh (YY_DECL): Take error_list
as third argument.
* src/ltltest/consterm.test, src/ltltest/tostring.test,
src/ltltest/equals.test, src/tgbatest/ltl2tgba.test: More tests.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/clone.cc,
src/ltlvisit/clone.hh, src/ltlvisit/consterm.cc,
src/ltlvisit/dotty.cc, src/ltlvisit/mark.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/postfix.cc,
src/ltlvisit/postfix.hh, src/ltlvisit/reduce.cc,
src/ltlvisit/syntimpl.cc, src/ltlvisit/tostring.cc,
src/ltlvisit/tunabbrev.cc, src/tgba/formula2bdd.cc,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2tgba_lacim.cc: Adjust syntax to use
"bunop::Star" instead of "unop::Star".
* src/tgbaalgos/ltl2tgba_fm.cc: Likewise, but also adjust
the code to handle the bounds of the operator.

* src/ltlast/multop.cc, src/ltlast/multop.hh: Declare AndNML
operator.
* src/ltlparse/ltlscan.ll: Distinguish "&" and "&&".
* src/ltlparse/ltlparse.yy: Handle them both as "And" for LTL
formula, use AndNML or And for rational expressions.
* src/ltlvisit/tostring.cc: Adjust to distinguish "&" and "&&" in
rational expressions. Also use {braces} to group rational
expressions.
* src/tgbaalgos/ltl2tgba_fm.cc
(ratexp_trad_visitor::ratexp_trad_visitor): Remove the possibility
to select the empty_word should act like true, and fix the rules
for Closure and NegClosure to rely on constant_term instead.
(ratexp_trad_visitor::visit) Adjust the And translation to also
support AndNML.
(ratexp_trad_visitor::recurse_and_concat): Introduce this new
method to simplify some calls to recurse(f, to_concat_).
* src/tgbatest/ltl2tgba.test: Add more test cases.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/consterm.cc,
src/ltlvisit/contain.cc, src/ltlvisit/mark.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/syntimpl.cc,
src/tgba/formula2bdd.cc, src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_lacim.cc: Add
missing cases in switches.

* src/ltlast/unop.hh, src/ltlast/unop.cc: Introduce Closure and
NegClosure operators.
* src/ltlparse/ltlparse.yy: Recognize {foo} as a Closure.
* src/ltlvisit/mark.cc: Consider NegClosure as a marked operator.
* src/tgbaalgos/ltl2tgba_fm.cc (ratexp_trad_visitor): Add option to
select whether the empty_word should act like true (for {SERE}
and {!SERE}) or false (for {SERE}<>->Exp or {SERE}[]->Exp).
(ltl_trad_visitor): Translate Closure and NegClosure.
* src/tgbatest/ltl2tgba.test: Add more tests.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/consterm.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/reduce.cc,
src/ltlvisit/syntimpl.cc, src/ltlvisit/tostring.cc,
src/ltlvisit/tunabbrev.cc, src/tgba/formula2bdd.cc,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/ltl2tgba_lacim.cc,
src/tgbaalgos/ltl2taa.cc: Straightforward update to support or
assert on these new operators.

* src/ltlast/multop.hh (multop::type::Fusion): New operator.
* src/ltlast/multop.cc: Handle it.
* src/ltlparse/ltlparse.yy: Declare OP_FUSION and add grammar
rules.
* src/ltlparse/ltlscan.ll: Recognize ":" as OP_FUSION.
* src/tgbaalgos/ltl2tgba_fm.cc (ratexp_trad_visitor::visit):
Add translation rule for multop::Fusion.
* src/tgbatest/ltl2tgba.test: Add more tests.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/consterm.cc,
src/ltlvisit/contain.cc, src/ltlvisit/mark.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/syntimpl.cc,
src/ltlvisit/tostring.cc, src/tgba/formula2bdd.cc,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2tgba_lacim.cc: Handle multop::Fusion in switches.

* src/ltlast/binop.cc, src/ltlast/binop.hh: Introduce
EConcatMarked ("<>+>").
* src/ltlvisit/basicreduce.cc, src/ltlvisit/consterm.cc,
src/ltlvisit/lunabbrev.cc, src/ltlvisit/nenoform.cc,
src/ltlvisit/reduce.cc, src/ltlvisit/simpfg.cc,
src/ltlvisit/syntimpl.cc, src/ltlvisit/tostring.cc,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/ltl2tgba_lacim.cc, src/tgba/formula2bdd.cc,
src/tgba/formula2bdd.cc: Deal with it if possible or ignore
it.

* src/ltlast/binop.hh, src/ltlast/binop.cc (EConcat, UConcat):
Add these new operators.
* src/ltlparse/ltlparse.yy, src/ltlparse/ltlscan.ll: Parse
these new operators.
* src/ltlvisit/simpfg.cc, src/ltlvisit/syntimpl.cc,
src/ltlvisit/tostring.cc, src/ltlvisit/basicreduce.cc,
src/ltlvisit/consterm.cc, src/ltlvisit/lunabbrev.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/reduce.cc
src/tgba/formula2bdd.cc, src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_lacim.cc: Add these new operators into the
switches.

Trivial simplifications rules (such as "FFa=Fa" or "x&1=x")
are performed any time a formule is instanciated.

* src/ltlast/constant.hh, src/ltlast/constant.cc
(true_instance, true_instance_): Declare the true_instance_ as a
static member, and move true_instance() into the .hh so it gets
inlined.  Have true_instance_ as a class variable will ensure that
it is the first formula instantiated.  Binop simplifications rely
on this to order arguments.
(false_instance, false_instance_): Likewise.
(empty_word_instance, empty_word_instance_): New method and static
member.
* src/ltlast/formula.hh (formula::formula): If max_count_ ever
loops, skip the first three values so that constants always have
smaller hash codes.
* src/ltlast/binop.hh, src/ltlast/binop.cc (instance): Add
simplifications and document them.
* src/ltlast/multop.hh (multop::Concat): New operator.
* src/ltlast/multop.cc (op_name): Handle Concat.
(instance): Inline Concat arguments without reordering.  Handle
absorbent and neutral elements for all operators.
* src/ltlast/unop.hh (unop::Star): New operator.
* src/ltlast/unop.cc (op_name): Handle Star.
(instance): Handle Star, and add trivial simplifications for
other unary operators.
* src/ltlparse/ltlparse.yy (OP_CONCAT, OP_STAR, CONST_EMPTYWORD):
Declare these new operators and add rules for them.
* src/ltlparse/ltlscan.ll (OP_CONCAT, OP_STAR, CONST_EMPTYWORD):
Output these new operators.
* src/ltltest/equals.test: New tests.
* src/ltltest/parse.test: Remove redundant test.
* src/ltltest/tunabbrev.test, src/tgbatest/emptchk.test: Adjust tests.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/contain.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/reduce.cc,
src/ltlvisit/syntimpl.cc, src/ltlvisit/tostring.cc,
src/ltlvisit/tunabbrev.cc: Complete visitors to handle new
operators.
* src/ltltest/nenoform.test: More tests.
* src/ltlvisit/lunabbrev.cc (unabbreviate_logic_visitor::visit):
Clone formulae before instance() function actually have a chance
to destroy them.
* src/tgba/formula2bdd.cc, src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_lacim.cc: Adjust switches to assert on new
operators.

* src/ltlast/binop.cc, src/ltlast/binop.cc: Add support for
these new operators.
* src/ltlparse/ltlparse.yy, src/ltlparse/ltlscan.ll: Parse them.
* src/ltltest/reduccmp.test: Add new tests for W and M.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/contain.cc,
src/ltlvisit/lunabbrev.cc, src/ltlvisit/nenoform.cc,
src/ltlvisit/randomltl.cc, src/ltlvisit/randomltl.hh,
src/ltlvisit/reduce.cc, src/ltlvisite/simpfg.cc,
src/ltlvisit/simpfg.hh, src/ltlvisit/syntimpl.cc,
src/ltlvisit/tostring.cc, src/tgba/formula2bdd.cc,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_lacim.cc:
Add support for W and M.
* src/tgbatest/ltl2neverclaim.test: Test never claim output
using LBTT, this is more thorough.  Also we cannot use -N
any more in the spotlbtt.test.
* src/tgbatests/ltl2tgba.cc: Define M and W for ELTL.
* src/tgbatest/ltl2neverclaim.test: Test W and M, and use
-DS instead of -N, because lbtt-translate does not want
to translate these operators for tools that masquerade as Spin.

* bench/Makefile.am, bench/gspn-ssp/Makefile.am,
bench/gspn-ssp/defs.in, bench/scc-stats/Makefile.am,
bench/split-product/Makefile.am, configure.ac,
iface/Makefile.am, iface/gspn/Makefile.am, iface/gspn/ssp.hh,
iface/nips/Makefile.am, iface/nips/common.cc,
iface/nips/common.hh, iface/nips/dottynips.cc,
iface/nips/nips.cc, iface/nips/nips.hh, src/Makefile.am,
src/eltlparse/Makefile.am, src/eltlparse/eltlparse.yy,
src/eltlparse/eltlscan.ll, src/eltlparse/fmterror.cc,
src/eltlparse/parsedecl.hh, src/eltltest/Makefile.am,
src/eltltest/defs.in, src/eltltest/nfa.cc, src/evtgba/evtgba.hh,
src/evtgba/product.cc, src/evtgba/product.hh,
src/evtgbaalgos/tgba2evtgba.cc, src/evtgbaparse/Makefile.am,
src/evtgbaparse/evtgbaparse.yy, src/evtgbatest/defs.in,
src/evtgbatest/explicit.test, src/evtgbatest/ltl2evtgba.cc,
src/evtgbatest/ltl2evtgba.test, src/evtgbatest/product.cc,
src/evtgbatest/product.test, src/evtgbatest/readsave.cc,
src/evtgbatest/readsave.test, src/ltlast/atomic_prop.cc,
src/ltlast/atomic_prop.hh, src/ltlast/binop.cc,
src/ltlast/binop.hh, src/ltlast/constant.cc,
src/ltlast/constant.hh, src/ltlast/formula.cc,
src/ltlast/formula.hh, src/ltlast/formula_tree.cc,
src/ltlast/formula_tree.hh, src/ltlast/multop.cc,
src/ltlast/multop.hh, src/ltlast/nfa.cc, src/ltlast/nfa.hh,
src/ltlast/unop.cc, src/ltlast/unop.hh, src/ltlenv/declenv.cc,
src/ltlenv/declenv.hh, src/ltlenv/environment.hh,
src/ltlparse/Makefile.am, src/ltlparse/ltlparse.yy,
src/ltltest/Makefile.am, src/ltltest/defs.in,
src/ltltest/equals.cc, src/ltltest/equals.test,
src/ltltest/lunabbrev.test, src/ltltest/nenoform.test,
src/ltltest/parse.test, src/ltltest/parseerr.test,
src/ltltest/randltl.cc, src/ltltest/readltl.cc,
src/ltltest/reduccmp.test, src/ltltest/syntimpl.cc,
src/ltltest/syntimpl.test, src/ltltest/tostring.cc,
src/ltltest/tostring.test, src/ltltest/tunabbrev.test,
src/ltltest/tunenoform.test, src/ltlvisit/basicreduce.cc,
src/ltlvisit/clone.cc, src/ltlvisit/clone.hh,
src/ltlvisit/contain.cc, src/ltlvisit/destroy.cc,
src/ltlvisit/destroy.hh, src/ltlvisit/lunabbrev.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/randomltl.cc,
src/ltlvisit/reduce.cc, src/ltlvisit/syntimpl.cc,
src/ltlvisit/tostring.cc, src/misc/bddalloc.cc,
src/misc/bddop.cc, src/misc/bddop.hh, src/misc/freelist.hh,
src/misc/hash.hh, src/misc/minato.cc, src/misc/minato.hh,
src/misc/optionmap.cc, src/misc/timer.cc, src/misc/timer.hh,
src/saba/Makefile.am, src/saba/explicitstateconjunction.cc,
src/saba/explicitstateconjunction.hh, src/saba/saba.cc,
src/saba/saba.hh, src/saba/sabacomplementtgba.cc,
src/saba/sabacomplementtgba.hh, src/saba/sabastate.hh,
src/saba/sabasucciter.hh, src/sabaalgos/Makefile.am,
src/sabaalgos/sabadotty.cc, src/sabaalgos/sabadotty.hh,
src/sabaalgos/sabareachiter.cc, src/sabaalgos/sabareachiter.hh,
src/sabatest/Makefile.am, src/sabatest/defs.in,
src/sanity/Makefile.am, src/tgba/Makefile.am,
src/tgba/bdddict.cc, src/tgba/bddprint.cc,
src/tgba/formula2bdd.cc, src/tgba/state.hh,
src/tgba/succiterconcrete.cc, src/tgba/taatgba.hh,
src/tgba/tgba.hh, src/tgba/tgbabddconcretefactory.cc,
src/tgba/tgbabddconcretefactory.hh, src/tgba/tgbacomplement.cc,
src/tgba/tgbacomplement.hh, src/tgba/tgbaexplicit.cc,
src/tgba/tgbaexplicit.hh, src/tgba/tgbaproduct.cc,
src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasgba.cc,
src/tgba/tgbasgba.hh, src/tgba/tgbaunion.cc,
src/tgba/tgbaunion.hh, src/tgbaalgos/dupexp.cc,
src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/eltl2tgba_lacim.hh, src/tgbaalgos/emptiness.cc,
src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2taa.hh, src/tgbaalgos/ltl2tgba_lacim.cc,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/neverclaim.hh,
src/tgbaalgos/powerset.cc, src/tgbaalgos/reachiter.cc,
src/tgbaalgos/reachiter.hh, src/tgbaalgos/reductgba_sim.cc,
src/tgbaalgos/reductgba_sim.hh,
src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/stats.cc,
src/tgbaalgos/stats.hh, src/tgbaparse/Makefile.am,
src/tgbaparse/tgbaparse.yy, src/tgbatest/Makefile.am,
src/tgbatest/bddprod.test, src/tgbatest/complementation.cc,
src/tgbatest/complementation.test, src/tgbatest/defs.in,
src/tgbatest/dfs.test, src/tgbatest/dupexp.test,
src/tgbatest/explicit.cc, src/tgbatest/explicit.test,
src/tgbatest/explpro3.test, src/tgbatest/explpro4.test,
src/tgbatest/explprod.cc, src/tgbatest/explprod.test,
src/tgbatest/ltl2neverclaim.test, src/tgbatest/ltl2tgba.cc,
src/tgbatest/ltl2tgba.test, src/tgbatest/ltlprod.cc,
src/tgbatest/ltlprod.test, src/tgbatest/mixprod.cc,
src/tgbatest/mixprod.test, src/tgbatest/powerset.cc,
src/tgbatest/readsave.cc, src/tgbatest/readsave.test,
src/tgbatest/reduccmp.test, src/tgbatest/reductgba.cc,
src/tgbatest/reductgba.test, src/tgbatest/taatgba.cc,
src/tgbatest/tgbaread.cc, src/tgbatest/tgbaread.test,
src/tgbatest/tripprod.cc, src/tgbatest/tripprod.test,
wrap/python/cgi/ltl2tgba.in, wrap/python/tests/ltl2tgba.py,
wrap/python/tests/ltlparse.py, wrap/python/tests/ltlsimple.py:
Fix copyrights.

* src/ltlvisit/clone.hh (clone): Document and declare as deprecated.
* src/ltlast/formula_tree.cc, src/ltlvisit/basicreduce.cc,
src/ltlvisit/clone.cc, src/ltlvisit/contain.cc,
src/ltlvisit/lunabbrev.cc, src/ltlvisit/reduce.cc,
src/ltlvisit/syntimpl.cc, src/tgba/bdddict.cc,
src/tgba/formula2bdd.cc, src/tgba/tgbabddconcretefactory.cc,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbatest/complementation.cc, wrap/python/tests/ltlsimple.py:
Adjust clone() usage, and remove the #include "clone.hh" when
appropriate.

new keyword in the ELTL format: finish, which applies to an
automaton operator and tells whether it just completed.

* src/eltlparse/eltlparse.yy: Clean it. Add finish.
* src/eltlparse/eltlscan.ll: Add finish.
* src/formula_tree.cc, src/formula_tree.hh: New files. Define a
small AST representing formulae where atomic props are unknown
which is used in the ELTL parser.
* src/ltlast/automatop.cc, ltlast/automatop.hh, ltlast/nfa.cc,
ltlast/nfa.hh: Adjust.
* src/ltlast/unop.cc, src/ltlast/unop.hh: Finish is an unop.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/nenoform.cc,
src/ltlvisit/reduce.cc, src/ltlvisit/syntimpl.cc,
src/ltlvisit/tostring.cc, src/ltlvisit/tunabbrev.cc,
src/tgba/formula2bdd.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_lacim.cc: Handle finish in switches.
* src/tgbaalgos/eltl2tgba_lacim.cc: Translate finish.
* src/tgbatest/eltl2tgba.test: More tests.

for ELTL.  This is a new version of the work started in 2008 with
LTL and ELTL formulae now sharing the same class hierarchy.

* configure.ac: Adjust for src/eltlparse/ and src/eltltest/
directories, and call AX_BOOST_BASE.
* m4/boost.m4: New file defining AX_BOOST_BASE([MINIMUM-VERSION]).
* src/Makefile.am: Add eltlparse and eltltest.
* src/eltlparse/: New directory.  Contains the ELTL parser.
* src/eltltest/: New directory.  Contains tests related to
ELTL (parser and AST).
* src/ltlast/Makefile.am: Adjust for ELTL AST files.
* src/ltlast/automatop.cc, src/ltlast/automatop.hh: New files.
Represent automaton operators nodes used in ELTL ASTs.
* src/ltlast/nfa.cc, src/ltlast/nfa.hh: New files.  Represent
simple NFAs used internally by automatop nodes.
* src/ltlast/allnode.hh, src/ltlast/predecl.hh,
src/ltlast/visitor.hh: Adjust for automatop.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/clone.cc,
src/ltlvisit/clone.hh, src/ltlvisit/contain.cc,
src/ltlvisit/dotty.cc, src/ltlvisit/nenoform.cc,
src/ltlvisit/postfix.cc, src/ltlvisit/postfix.hh,
src/ltlvisit/reduce.cc, src/ltlvisit/syntimpl.cc,
src/ltlvisit/tostring.cc: Because LTL and ELTL formulae share the
same class hierarchy, LTL visitors need to handle automatop nodes
to compile.  When it's meaningful the visitor applies on automatop
nodes or simply assert(0) otherwise.
* src/tgba/tgbabddconcretefactory.cc (create_anonymous_state),
src/tgba/tgbabddconcretefactory.hh (create_anonymous_state): New
function used by the LaCIM translation algorithm for ELTL.
* src/tgbaalgos/Makefile.am: Adjust for eltl2tgba_lacim* files.
* src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/eltl2tgba_lacim.hh: New files.  Implementation of
the LaCIM translation algorithm for ELTL.
* src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_lacim.cc:
Handle automatop nodes in the translation by an assert(0).
* src/tgbatest/Makefile.am: Adjust for eltl2tgba.* files.
* src/src/tgbatest/eltl2tgba.cc, src/tgbatest/eltl2tgba.test: New
files

Here are the reverted patches:
8c0d1003,
25a31142,
9afbaf63,
dc0005f4,
543190f2.

Merge all eltlast/ files into formula.hh (except automatop.hh).

Merge all ltlast/ files into formula.hh.  The forward declaration of visitor was causing error messages too cryptic for users.

src/ltlvisit/destroy.cc, src/ltlvisit/dotty.cc,
src/ltlvisit/dump.cc, src/ltlvisit/length.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/reduce.cc,
src/ltlvisit/syntimpl.cc, src/ltlvisit/tostring.cc,
src/tgba/formula2bdd.cc, src/tgba/tgbabddconcreteproduct.cc,
src/tgba/tgbatba.cc, src/tgbaalgos/dotty.cc,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/ltl2tgba_lacim.cc, src/tgbaalgos/neverclaim.cc,
src/tgbaalgos/save.cc, src/tgbaalgos/stats.cc,
src/tgbaalgos/gtec/nsheap.cc, src/tgbaalgos/gtec/nsheap.hh:
Declare private classes and helper function in anonymous namespaces.
* HACKING, src/sanity/style.test: Document and check this.
Also check for trailing { after namespace or class.
* src/ltlast/predecl.hh, src/ltlast/visitor.hh,
src/tgba/tgbareduc.hh: Fix trailing {.

* src/tgba/formula2bdd.cc: Include cassert.

arcs.  ltl2tgba_fm benefits from this and join multiple arcs with
the same destination and acceptance conditions.
* src/tgba/formula2bdd.cc, src/tgba/formula2bdd.hh: New files.
* src/tgba/Makefile.am (tgba_HEADERS, libtgba_la_SOURCES): Add them.
* src/tgba/bddprint.cc, src/tgba/bddprint.hh (bdd_pring_formula,
bdd_format_formula): New functions.
* src/tgba/tgbaexplicit.hh (tgba_explicit::get_condition,
tgba_explicit::add_condition, tgba_explicit::add_neg_condition,
tgba_explicit::declare_accepting_condition,
tgba_explicit::has_accepting_condition,
tgba_explicit::get_accepting_condition,
tgba_explicit::add_accepting_condition): Take a const formula*.
* src/tgba/tgbaexplicit.cc (tgba_explicit::add_condition):
Rewrite using formula_to_bdd.
* src/tgbaalgos/dotty.cc (dotty_bfs::process_link): Use
bdd_print_formula to display conditions.
* src/tgbaalgos/save.cc (save_bfs::process_state): Likewise.
* src/tgbaalgos/ltl2tgba_fm.cc (translate_dict::bdd_to_formula):
New function.
(translate_dict::conj_bdd_to_atomic_props): Remove.
(ltl_to_tgba_fm): Factor successors on accepting conditions
and destinations, not conditions.  Use bdd_to_formula to translate
the conditions.
* src/tgbaparse/tgbaparse.yy: Expect conditions as a formula
in a string, call the LTL parser for this.
* src/tgbaparse/tgbascan.ll: Process " and \ escapes in
strings.
* src/tgbatest/emptchke.test, src/tgbatest/explicit.test,
src/tgbatest/explpro2.test, src/tgbatest/explpro3.test,
src/tgbatest/explprod.test, src/tgbatest/mixprod.test,
src/tgbatest/readsave.test, src/tgbatest/tgbaread.test,
src/tgbatest/tripprod.test: Adjust to new syntax for explicit
automata.