collaboration diagrams.
* doc/mainpage.dox: Typo.

* src/tgba/state.hh (state::as_bdd): Delete.
* src/tgba/tgbaproduct.hh (state_bdd_product): Inherit from state,
not state_bdd.
(state_bdd_product::state_bdd_product): Adjust.
* src/tgba/tgbaproduct.cc (state_bdd_product::state_bdd_product):
Adjust.

* src/tgba/succiter.hh (tgba_bdd_succ_iterator::done):
Mark as const.
* src/tgba/succiterconcrete.cc
(tgba_succ_iterator_concrete::done): Likewise.
* src/tgba/succiterconcrete.hh
(tgba_succ_iterator_concrete::done): Likewise.
* src/tgba/tgbaexplicit.cc
(tgba_explicit_succ_iterator::done): Likewise.
* src/tgba/tgbaexplicit.hh
(tgba_explicit_succ_iterator::done): Likewise.
* src/tgba/tgbaproduct.cc
(tgba_product_succ_iterator::done): Likewise.
* src/tgba/tgbaproduct.hh
(tgba_product_succ_iterator::done): Likewise.
* src/tgba/tgbatranslateproxy.hh
(tgba_translate_proxy_succ_iterator::done): Likewise.
* src/tgba/tgbatranslateproxy.cc
(tgba_translate_proxy_succ_iterator::done): Likewise.

* src/tgba/succiterconcrete.cc
(tgba_succ_iterator_concrete::next): Call bdd_satoneset
on data_.varandnext_set.  The previous implementation
was wrong for GFa.
* src/tgba/tgbabddcoredata.hh: Declare varandnext_set.
* src/tgba/tgbabddcoredata.cc: Handle varandnext_set.

* src/ltlvisit/tostring.hh (to_string): Add doxygen comments.
* src/ltlast/multop.hh (multop::paircmp): Add doxygen comments.
* src/ltlvisit/postfix.hh: Typo.

of these accepting set so that they are really usable.  Provide
a all_accepting_conditions() method for use in the emptyness
check, and a neg_accepting_conditions() for products.
Predeclare TGBA accepting conditions is the i/o.

* src/tgba/bddprint.cc (want_prom): Rename as ...
(want_prom): ... this.
(print_handler): Adjust to display Acc[].
(print_acc_handler, bdd_print_acc): New functions.
* src/tgba/bddprint.hh (print_acc_handler, bdd_print_acc):
New functions.
* src/tgba/succiter.hh (current_promise): Rename as ...
(current_accepting_conditions): ... this.
* src/tgba/succiterconcrete.cc (current_state):
Rename next to now.
(current_promise): Rename as ...
(current_accepting_conditions): ... this, and compute
the accepting conditions.
* src/tgba/dictunion.cc, src/tgba/ltl2tgba.cc,
src/tgba/succiterconcrete.hh,
src/tgba/tgbabddconcretefactory.cc,
src/tgba/tgbabddcoredata.cc, src/tgba/tgbabddcoredata.hh,
src/tgba/tgbabdddict.hh, src/tgba/tgbabdddict.cc,
src/tgba/tgbabddtranslatefactory.cc,
src/tgbaalgos/dotty.cc: Adjust to new names.
* src/tgba/tgba.hh (all_accepting_conditions,
neg_accepting_conditions): New functions.
* src/tgba/tgbabddconcretefactory.cc: Adjust to new
names, and record accepting conditions instead of promises.
* src/tgba/tgbabddcoredata.hh (accepting_conditions,
all_accepting_conditions, negacc_set): New variables.
(notnow_set, notprom_set, declare_promise): Rename as ...
(notnext_set, notacc_set, declare_accepting_condition): ... these.
* src/tgba/tgbaexplicit.hh
(tgba_explicit_succ_iterator::current_promise): Rename as ...
(tgba_explicit_succ_iterator::current_accepting_conditions): ... this.
(tgba_explicit::add_promise): Rename as ...
(tgba_explicit::add_accepting_condition): ... this.
(tgba_explicit::declare_accepting_condition,
tgba_explicit::has_accepting_condition): New variables.
(tgba_explicit::get_promise): Rename as ...
(tgba_explicit::get_accepting_condition): ... this.
(tgba_explicit::all_accepting_conditions,
tgba_explicit::neg_accepting_conditions): Implement them.
(all_accepting_conditions, neg_accepting_conditions,
all_accepting_conditions): New variables.
(tgba_explicit_succ_iterator): Embed all_accepting_conditions_.
* src/tgba/tgbaexplicit.cc: Likewise.
* src/tgba/tgbaproduct.hh
(tgba_product_succ_uterator): Embed left_neg_ and right_neg_.
(tgba_product::all_accepting_conditions,
tgba_product::neg_accepting_conditions): Implement them.
* src/tgba/tgbatranslateproxy.hh:
(tgba_translate_proxy::all_accepting_conditions,
tgba_translate_proxy::neg_accepting_conditions): Implement them.
* src/tgba/tgbatranslateproxy.cc: Likewise.
* src/tgbaalgos/save.cc (save_rec): Call bdd_print
(tgba_save_reachable): Output the `acc =' line.
* src/tgbaparse/tgbaparse.yy: Support the for
accepting conditions definitions using an "acc =" line
at the start.  Later, use has_accepting_condition while
parsing	accepting conditions to ensure they were declared.
Disallow !cond in accepting conditions.
* src/tgbaparse/tgbascan.ll (ACC_DEF): New token.
* src/tgbatest/explicit.cc (main): Declare accepting conditions.
* src/tgbatest/ltl2tgba.cc (main): Add support for the -a, -A,
and -R new options.
* src/tgbatest/tgbaread.cc (main): Really exit on parse error.
* src/tgbatest/explicit.test, src/tgbatest/explprod.test,
src/tgbatest/mixprod.test, src/tgbatest/readsave.test,
src/tgbatest/tgbaread.test, src/tgbatest/tripprod.test: Reflect
recent changes.

* tgba/state.hh (state::translate, state::clone, state::as_bdd):
New virtual methods.
* tgba/stataebdd.cc (state::translate, state::clone): New methods.
* tgba/stataebdd.hh (state::translate, state::clone): New methods.
* tgba/tgbabddprod.cc (state_bdd_product::clone,
tgba_bdd_product_succ_iterator::~tgba_bdd_product_succ_iterator):
New methods.
(tgba_bdd_product_succ_iterator::first): Reset right_
if any of left_ or right_ is already done (i.e., is empty).
(tgba_bdd_product_succ_iterator::done): Return true
if right_ is NULL.
(tgba_bdd_product_succ_iterator::current_state,
tgba_bdd_product::get_init_state): Work	directory with `state's.
* tgba/tgbabddprod.hh (state_bdd_product::clone,
tgba_bdd_product_succ_iterator::~tgba_bdd_product_succ_iterator):
New methods.
* tgba/tgbabddtranslateproxy.cc
(tgba_bdd_translate_proxy_succ_iterator::
tgba_bdd_translate_proxy_succ_iterator): Work on any kind of iteraator.
(tgba_bdd_translate_proxy_succ_iterator::
~tgba_bdd_translate_proxy_succ_iterator): New method.
(tgba_bdd_translate_proxy_succ_iterator::current_state,
tgba_bdd_translate_proxy::get_init_state,
tgba_bdd_translate_proxy::succ_iter): Work on `state's and
`tgba_succ_iterator's directlry.
(tgba_bdd_translate_proxy::format_state): Delegate formating
to the proxied automata.
* tgba/tgbaexplicit.cc (state_explicit::clone): New method.
* src/tgba/tgbaexplicit.cc (tgba_explicit::get_condition,
tgba_explicit::get_promise): Call ltl::destroy on existing formulae.
* tgbatest/Makefile.am (check_PROGRAMS): Add explprod.
(explprod_SOURCES): New variable.
(TESTS): Add explprod.test.
(CLEANFILES): Add input1 and input2.

* src/Makefile.am (SUBDIRS): Add tgbaparse.
(libspot_la_LDADD): Add tgbaparse/libtgbaparse.la.
* src/tgba/tgbaexplicit.cc (tgba_explicit::get_condition,
tgba_explicit::get_promise, tgba_explicit::add_neg_condition,
tgba_explicit::add_neg_promise): New methods.
* src/tgba/tgbaexplicit.hh: Declare them.
* 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/tgbaread.cc, src/tgbatest/tgbaread.test: New files.
* src/tgbatest/Makefile.am (check_PROGRAMS): Add tgbaread.
(TESTS): Add tgbaread.cc.
(CLEANFILES): Add input.
(tgbaread_SOURCES): New variable.

* src/Makefile.am (SUBDIRS): Add tgbatest.
* src/tgba/tgbaexplicit.hh, src/tgba/tgbaexplicit.cc: New file.
* src/tgba/Makefile.am (libtgba_la_SOURCES): Add tgbaexplicit.cc
and tgbaexplicit.hh.
* src/tgbatest/Makefile.am, src/tgbatest/defs.in,
src/tgbatest/explicit.cc, src/tgbatest/explicit.test: New files.