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2004-01-09  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	* iface/gspn/dcswaveeltl.test, iface/gspn/udcsefm.test,
	iface/gspn/udcseltl.test: Exercize -e2.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::check2):
	New function, variant of emptiness_check::check().
	* src/tgbaalgos/emptinesscheck.hh (emptiness_check::check2):
	Likewise.
	* src/tgbatest/emptchk.test, src/tgbatest/emptchke.test: Exercize -e2.
	* src/tgbatest/ltl2tgba.cc: Support -e2, for emptiness_check::check2().
	* iface/gspn/Makefile.am [WITH_GSPN_EESRG] (check_PROGRAMS):
	Compile ltlgspn-eesrg instead of ltleesrg.
	(ltleesrg_SOURCES, ltleesrg_LDADD): Replace by...
	(ltlgspn_eesrg_SOURCES, ltlgspn_eesrg_LDADD, LIBGSPNESRG_LDFLAGS):
	... these.
	* iface/gspn/ltleesrg.cc: Delete.
	* iface/gspn/ltlgspn.cc [EESRG]: Support EESRG conditionally.
	Support -e2.

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	* src/tgbaalgos/ltl2tgba_lacim.cc: Typo in comment.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::check): Typos
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	in comments.

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	* m4/gspnlib.m4 (AX_CHECK_GSPNLIB): Do not warn about a missing
	library for eesrg.  Define the WITH_GSPN_EESRG conditional.
	* iface/gspn/Makefile.am (gspn_HEADERS, check_PROGRAMS): Add the
	eesrg items in condition WITH_GSPN_EESRG.
	(libspotgspneesrg_la_LIBADD, libspotgspneesrg_la_CPPFLAGS)
	(libspotgspneesrg_la_SOURCES): Define only in condition
	WITH_GSPN_EESRG.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::print_stats):
	New function.
	* src/tgbaalgos/emptinesscheck.hh (emptiness_check::print_stats):
	Likewise.
	* iface/gspn/ltlgspn.cc (main) <Couvreur>: Call print_stats().
	* iface/gspn/ltleesrg.cc (main): Likewise.

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	* iface/gspn/ltlgspn.cc: Add option -P.

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2004-01-08  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	Run valgrind in test cases.
	* src/tgbatest/defs.in (VALGRIND, run): Define.
	* src/tgbatest/bddprod.test, src/tgbatest/dupexp.test,
	src/tgbatest/emptchk.test, src/tgbatest/emptchke.test,
	src/tgbatest/explicit.test, src/tgbatest/explpro2.test,
	src/tgbatest/explpro3.test, src/tgbatest/explprod.test,
	src/tgbatest/ltl2tgba.test, src/tgbatest/ltlprod.test,
	src/tgbatest/mixprod.test, src/tgbatest/readsave.test,
	src/tgbatest/tgbaread.test, src/tgbatest/tripprod.test: Use run().

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2004-01-06  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	* iface/gspn/eesrg.cc (format_state): Do not rewrite \n's,
	just strip the last one.  Escaping must be done at output.
	* iface/gspn/gspm.cc (format_state): Likewise.
	* src/misc/escape.hh, src/misc/escape.cc: New files.
	* src/misc/Makefile.am: Add them.
	* src/tgba/bddprint.cc (bdd_format_accset): New function.
	* src/tgba/bddprint.hh (bdd_format_accset): New function.
	* src/tgbaalgos/dotty.cc (dotty_bfs::process_state):
	Escape the state name using escape_str().
	(dotty_bfs::process_link): Escape conditions and acceptance
	conditions using escape_str().
	* src/tgbaalgos/save.cc (save_bfs::start): Call print_acc().
	(save_bfs::print_acc): New function extracted from save_bfs::start().
	Escape each acceptance condition.
	(save_bfs::process_state): Use escape_str() and print_acc()

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	* src/ltlvisit/tostring.cc
	(to_string_visitor::visit(const atomic_prop*)): Quote propositions
	that start with F, G, or X.
	* src/ltltest/tostring.test: Test quoted propositions.
	* src/tgbaalgos/save.cc (save_bfs::process_state): Escape " and \
	characters in formulae.
	* src/tgbatest/readsave.test: Test for this.

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	* src/tgbaalgos/reachiter.hh: Typos in comments.

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	* iface/gspn/eesrg.cc (tgba_gspn_eesrg::all_acceptance_conditions,
	tgba_gspn_eesrg::neg_acceptance_conditions): Forward to
	data_->operand.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::complete_cycle):
	Do not skip this computation if from == to but the period is empty.

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	* iface/gspn/eesrg.cc (state_gspn_eesrg::clone): Clone the right
	state.

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	* iface/gspn/ltleesrg.cc: Emptinesscheck the full product, not
	the control automaton.

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	* iface/gspn/eesrg.cc (tgba_gspn_eesrg::project_state): New method.
	* iface/gspn/eesrg.hh: Likewise.

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2004-01-05  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	* src/tgbaalgos/powerset.cc, src/tgbaalgos/powerset.hh: New files.
	* src/tgbaalgos/Makefile.am: Add them.
	* src/tgbatest/powerset.cc: New file.
	* src/tgbatest/Makefile.am: Construct powerset and expldot from
	powerset.cc.

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	* src/tgbaalgos/reachiter.cc (tgba_reachable_iterator::run)
	Reuse s->second to avoid a hash lookup.
	* src/tgbaalgos/save.cc (save_bfs::process_state): Delete dest.

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	* src/ltlparse/Makefile.am ($(FROM_LTLPARSE_YY_MAIN)):
	Use $(FROM_LTLPARSE_YY_MAIN), not $@, because $@ can contains
	VPATH and we do not want Bison to see absolute paths.
	* src/tgbaparse/Makefile.am ($(FROM_TGBAPARSE_YY_MAIN)): Likewise.

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	* src/ltltest/parseerr.test: Adjust.
	* src/ltlparse/ltlparse.yy: Simplify error handling now that Bison
	will call destructors.  Give each operator a full name, so that
	Bison uses it in error messages.

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2003-12-30  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	* iface/gspn/ltleesrg.cc: New file.
	* iface/gspn/Makefile.am (check_PROGRAMS): Add ltleesrg.
	(ltleesrg_LDADD, ltleesrg_SOURCES): New variables.

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	* src/ltltest/defs.in (run): Rerun valgrind with --leak-check=yes.
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	* src/ltlparse/ltlparse.yy: Add `%destructor's.

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2003-12-29  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	* src/ltltest/defs.in (run): New function, run valgrind.
	* src/ltltest/equals.test, src/ltltest/lunabbrev.test,
	src/ltltest/nenoform.test, src/ltltest/parse.test,
	src/ltltest/parseerr.test, src/ltltest/tostring.test,
	src/ltltest/tunabbrev.test, src/ltltest/tunenoform.test: Use run().
	* Makefile.am (EXTRA_DIST): Don't list the m4/*.m4 files,
	Automake 1.8 find them automatically.
	* configure.ac: Require Automake 1.8, in gnits mode, and check
	for valgrind.
	* THANKS: New empty file.

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	* doc/Doxyfile.in: Upgrade to Doxygen 1.3.5.  Build
	documentation for iface/.
	* dox/mainpage.dox: Fix reference to ltl_to_tgba.
	* src/ltlenv/environment.hh: Typo.

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2003-12-03  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh
	(tgba_explicit::merge_transitions): New method.
	* src/tgbaalgos/ltl2tgba_fm.cc (ltl_to_tgba_fm): Factorize all
	variables (not just Next and A) when computing prime implicants,
	and then call merge_transitions().

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2003-12-01  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	* configure.ac: Bump version to 0.0m.

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	* configure.ac, NEWS: Bump version to 0.0l.
	* doc/Makefile.am ($(srcdir)/spotref.pdf): Do not assume spot.latex is
	in the srcdir.

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2003-11-28  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	* src/tgbaparse/tgbaparse.yy (cond_list): Simplify into...
	(condition): ... this.  We now accept only one condition, which
	is a formula.
	* src/tgba/tgbaexplicit.hh (tgba_explicit::add_neg_condition,
	tgba_explicit::get_condition): Remove, unused.
	* src/tgba/tgbaexplicit.cc: Likewise.

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	* iface/gspn/eesrg.cc, iface/gspn/eesrg.hh, iface/gspn/gspn.cc,
	iface/gspn/gspn.hh, src/tgba/bdddict.cc, src/tgba/bdddict.hh,
	src/tgba/bddprint.hh, src/tgba/succiter.hh,
	src/tgba/succiterconcrete.cc, src/tgba/succiterconcrete.hh,
	src/tgba/tgba.hh, src/tgba/tgbabddconcrete.cc,
	src/tgba/tgbabddconcrete.hh, src/tgba/tgbabddconcretefactory.cc,
	src/tgba/tgbabddconcretefactory.hh, src/tgba/tgbabddcoredata.cc,
	src/tgba/tgbabddcoredata.hh, src/tgba/tgbaexplicit.cc,
	src/tgba/tgbaexplicit.hh, src/tgba/tgbaproduct.cc,
	src/tgba/tgbaproduct.hh, src/tgba/tgbatba.cc, src/tgba/tgbatba.hh,
	src/tgbaalgos/dotty.cc, src/tgbaalgos/dupexp.cc,
	src/tgbaalgos/emptinesscheck.cc, src/tgbaalgos/emptinesscheck.hh,
	src/tgbaalgos/lbtt.cc, src/tgbaalgos/lbtt.hh,
	src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_lacim.cc,
	src/tgbaalgos/save.cc, src/tgbatest/explicit.cc,
	src/tgbatest/ltl2tgba.cc, src/tgbaparse/tgbaparse.yy,
	wrap/python/tests/ltl2tgba.py:
	Rewrite `accepting condition' as `acceptance condition'.
	The symbols which have been renamed are:
	tgba::all_accepting_conditions
	tgba::neg_accepting_conditions
	succ_iterator::current_accepting_conditions
	bdd_dict::register_accepting_variable
	bdd_dict::register_accepting_variables
	bdd_dict::is_registered_accepting_variable
	tgba_bdd_concrete_factory::declare_accepting_condition
	tgba_bdd_core_data::accepting_conditions
	tgba_bdd_core_data::all_accepting_conditions
	tgba_explicit::declare_accepting_condition
	tgba_explicit::complement_all_accepting_conditions
	tgba_explicit::has_accepting_condition
	tgba_explicit::get_accepting_condition
	tgba_explicit::add_accepting_condition
	tgba_explicit::all_accepting_conditions
	tgba_explicit::neg_accepting_conditions
	state_tba_proxy::acceptance_cond
	accepting_cond_splitter

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	* src/tgbaalgos/ltl2tgba_fm.cc (ltl_trad_visitor::visit) <G>:
	Optimize translation of GFy.

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	* src/tgba/bddprint.cc (print_accset_handler, bdd_print_accset): New
	functions.
	* src/tgba/bddprint.cc (bdd_print_accset): Declare it.
	* src/tgbaalgos/dotty.cc (dotty_bfs::process_link): Use it.
	* src/tgbatest/tgbaread.test, src/tgbatest/explicit.test: Adjust
	expected output.

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2003-11-25  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaparse/tgbaparse.yy: Remove a random character.
	* src/tgba/formula2bdd.cc: Include cassert.

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2003-11-24  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	Explicit automata can now have arbitrary logic formula on their
	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.

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	* src/misc/minato.hh (minato_isop(bdd,bdd)): New constructor variant.
	(minato_isop::local_vars::vars): New attribute.
	(minato_isop::local_vars::local_vars): Add the vars arguments.
	(minato_isop::todo, minato_isop::cube, minato_isop::ret): Rename as ...
	(minato_isop::todo_, minato_isop::cube_, minato_isop::ret_): ... these.
	* src/misc/minato.cc: Adjust to factorize only variables in vars.

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	* m4/devel.m4: Fix quoting and simplify default setting of
	enable_devel.

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2003-11-21  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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	* AUTHORS: New file.
	* configure.ac (AM_INIT_AUTOMAKE): Remove `foreign' option.

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	* COPYING: New file.
	* Makefile.am, configure.ac, doc/Makefile.am, iface/Makefile.am,
	iface/gspn/Makefile.am, iface/gspn/common.cc,
	iface/gspn/common.hh, iface/gspn/dottyeesrg.cc,
	iface/gspn/dottygspn.cc, iface/gspn/eesrg.cc, iface/gspn/eesrg.hh,
	iface/gspn/gspn.cc, iface/gspn/gspn.hh, iface/gspn/ltlgspn.cc,
	src/Makefile.am, src/ltlast/Makefile.am, src/ltlast/allnodes.hh,
	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/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/Makefile.am,
	src/ltlenv/defaultenv.cc, src/ltlenv/defaultenv.hh,
	src/ltlenv/environment.hh, src/ltlparse/Makefile.am,
	src/ltlparse/fmterror.cc, src/ltlparse/ltlparse.yy,
	src/ltlparse/ltlscan.ll, src/ltlparse/parsedecl.hh,
	src/ltlparse/public.hh, 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/readltl.cc,
	src/ltltest/tostring.cc, src/ltltest/tostring.test,
	src/ltltest/tunabbrev.test, src/ltltest/tunenoform.test,
	src/ltlvisit/Makefile.am, src/ltlvisit/clone.cc,
	src/ltlvisit/clone.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/lunabbrev.cc, src/ltlvisit/lunabbrev.hh,
	src/ltlvisit/nenoform.cc, src/ltlvisit/nenoform.hh,
	src/ltlvisit/postfix.cc, src/ltlvisit/postfix.hh,
	src/ltlvisit/tostring.cc, src/ltlvisit/tostring.hh,
	src/ltlvisit/tunabbrev.cc, src/ltlvisit/tunabbrev.hh,
	src/misc/Makefile.am, src/misc/bddalloc.cc, src/misc/bddalloc.hh,
	src/misc/bddlt.hh, src/misc/hash.hh, src/misc/minato.cc,
	src/misc/minato.hh, src/misc/version.cc, src/misc/version.hh,
	src/tgba/Makefile.am, src/tgba/bdddict.cc, src/tgba/bdddict.hh,
	src/tgba/bddprint.cc, src/tgba/bddprint.hh, src/tgba/public.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/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/tgbaproduct.cc, src/tgba/tgbaproduct.hh,
	src/tgba/tgbatba.cc, src/tgba/tgbatba.hh,
	src/tgbaalgos/Makefile.am, src/tgbaalgos/dotty.cc,
	src/tgbaalgos/dotty.hh, src/tgbaalgos/dupexp.cc,
	src/tgbaalgos/dupexp.hh, src/tgbaalgos/emptinesscheck.cc,
	src/tgbaalgos/emptinesscheck.hh, src/tgbaalgos/lbtt.cc,
	src/tgbaalgos/lbtt.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/reachiter.cc,
	src/tgbaalgos/reachiter.hh, src/tgbaalgos/save.cc,
	src/tgbaalgos/save.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/bddprod.test, src/tgbatest/defs.in,
	src/tgbatest/dupexp.test, src/tgbatest/emptchk.test,
	src/tgbatest/emptchke.test, src/tgbatest/explicit.test,
	src/tgbatest/explpro2.test, src/tgbatest/explpro3.test,
	src/tgbatest/explprod.test, src/tgbatest/ltl2tgba.test,
	src/tgbatest/ltlprod.test, src/tgbatest/mixprod.test,
	src/tgbatest/readsave.test, src/tgbatest/spotlbtt.test,
	src/tgbatest/tgbaread.test, src/tgbatest/tripprod.test,
	wrap/Makefile.am, wrap/python/Makefile.am, wrap/python/buddy.i,
	wrap/python/spot.i, wrap/python/cgi/Makefile.am,
	wrap/python/cgi/ltl2tgba.in, wrap/python/tests/Makefile.am,
	wrap/python/tests/bddnqueen.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/run.in: Add Copyright license.

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	* src/misc/minato.cc: Include cassert.

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	* src/misc/minato.cc, src/misc/minato.hh: New files.
	* src/misc/Makefile.am (misc_HEADERS, libmisc_la_SOURCES): Add them.
	* src/tgbaalgos/ltl2tgba_fm.cc (ltl_to_tgba_fm): Use minato_isop.

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	* src/ltltest/Makefile.am (AM_CXXFLAGS): New variable.
	* tgba/bdddict.hh (bdd_dict::register_propositions,
	bdd_dict::register_accepting_variables): New methods.
	* src/bdddict.cc: Likewise.
	* tgba/tgbaexplicit.cc (tgba_explicit::add_conditions,
	tgba_explicit::add_accepting_conditions): New methods.
	(tgba_explicit::get_init_state): Add an "empty" initial
	state to empty automata.
	* tgba/tgbaexplicit.hh: (tgba_explicit::add_conditions,
	tgba_explicit::add_accepting_conditions): New methods.
	* tgbaalgos/Makefiles.am (tgbaalgos_HEADERS, libtgbaalgos_la_SOURCES):
	Add dupexp.hh and dupexp.cc.
	* tgbaalgos/dupexp.hh, tgbaalgos/dupexp.cc: New files.
	* tgbatest/Makefile.am (AM_CXXFLAGS): New variable.
	(check_SCRIPTS): Add dupexp.test.
	(CLEANFILES): Add output1 and output2.
	* tgbatest/dupexp.test: New file.
	* tgbatest/ltl2tgba.cc: Handle -s and -S.
	* tgbatest/tgbaread.cc: Remove unused variable exit_code.

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	* src/ltlparse/ltlscan.ll: Include ltlparse/parsedecl.hh,
	not parsedecl.hh.
	* src/tgbaparse/tgbascan.ll: Likewise, include tgbaparse/parsedecl.hh.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::complete_cycle):
	Check whether the state is in the current SCC before passing it
	to h_filt().

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	* iface/gspn/eesrg.cc (tgba_succ_iterator_gspn_eesrg::first_): New
	attribute.
	(tgba_succ_iterator_gspn_eesrg::step): Use first_.  Loop until
	succ returns some successors.
	Report from Soheib Baarir.

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	* iface/gspn/eesrg.cc (tgba_succ_iterator_gspn_eesrg::step): Fix
	the iteration logic.
	(tgba_succ_iterator_gspn_eesrg::tgba_succ_iterator_gspn_eesrg): Make
	sure not to free successors_ twice.
	(tgba_succ_iterator_gspn_eesrg::done): Fix definition.

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	* iface/gspn/eesrg.cc (tgba_gspn_eesrg::get_init_state): Do not
	call get_init_state(), use 0 instead.
	(tgba_gspn_eesrg::format_state): Handle the case where s->left() == 0.
	Reported by Soheib Baarir.

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	* src/ltlparse/ltlscan.ll: Cosmetics.

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	* configure.ac: Bump version to 0.0k.

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	* iface/gspn/eesrg.cc (tgba_succ_iterator_gspn_eesrg::step):
	Really Skip unknown variables.

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	* configure.ac, NEWS: Bump version to 0.0j.

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	* iface/gspn/eesrg.cc (tgba_succ_iterator_gspn_eesrg::step):
	Skip unknown variables.

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	* iface/gspn/gspn.cc
	(tgba_gspn_eesrg_private_::tgba_gspn_eesrg_private_): Show prop_index()
	and prop_kind() arguments on error.

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	* iface/gspn/eesrg.cc
	(tgba_gspn_eesrg_private_::tgba_gspn_eesrg_private_): Show prop_index()
	argument on error.

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	* src/ltlparse/Makefile.am ($(FROM_LTLPARSE_YY_MAIN)): cd into
	$(srcdir) before running bison, so that bison does not put
	absolute filenames in generated files.
	* src/tgbaparse/Makefile.am ($(FROM_TGBAPARSE_YY_MAIN)): Likewise.
	Reported by Soheib Baarir.

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	* iface/gspn/Makefile.am (gspn_HEADERS): Add eesrg.hh.
	Reported by Soheib Baarir.

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	* README: More build instructions.
	* HACKING: Update.

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	* doc/Makefile.am ($(srcdir)/spotref.pdf): Make sure to work in
	$(srcdir).

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2003-10-30  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* m4/gspnlib.m4: Define LIBGSPNESRG_LDFLAGS.
	* iface/gspn/Makefile.am (gspn_HEADERS): Add common.hh.
	(libspotgspn_la_SOURCES): Add common.cc.
	(libspotgspneesrg_la_LIBADD, libspotgspneesrg_la_CPPFLAGS)
	(libspotgspneesrg_la_SOURCES, ltlgspn_eesrg_SOURCES)
	(dotty_eesrg_LDADD, dotty_eesrg_CPPFLAGS): New variables.
	(lib_LTLIBRARIES): Add libspotgspneesrg.la.
	(check_PROGRAMS): Add dottygspn-eesrg.
	* iface/gspn/gspn.hh, iface/gspn/gspn.cc
	(gspn_exeption, operator<<(gspn_exeption), gspn_environment): Move ...
	* iface/gspn/common.hh, iface/gspn/common.cc: ... in these new files.
	* iface/gspn/eesrg.hh, iface/gspn/eesrg.cc, iface/gspn/dottyeesrg.cc:
	New files.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::complete_cycle):
	Simplify, comment, and free memory.

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	* src/tgbaalgos/emptinesscheck.cc (triplet): New class.
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	(emptiness_check::accepting_path): Simplify, comment,
	derecursive, and free memory...
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	* src/tgbaalgos/emptinesscheck.cc (connected_component): Split
	into ...
	(emptiness_check::connected_component,
	emptiness_check::connected_component_set): ... these.
	* src/tgbaalgos/emptinesscheck.cc: Adjust.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::h_filt,
	emptiness_check::~emptiness_check) New methods.
	(emptiness_check::check): Release all iterators in todo on exit.
	(emptiness_check::counter_example): Rewrite the BFS logic.
	* src/tgbaalgos/emptinesscheck.hh (emptiness_check::h_filt,
	emptiness_check::~emptiness_check): New methods.

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	* src/tgba/tgbatba.cc
	(tgba_tba_proxy_succ_iterator::~tgba_tba_proxy_succ_iterator):
	Delete the proxied iterator.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::counter_example):
	Remove unused tmp_last, best_lst, and tmp_acc variables.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::counter_example):
	Rewrite initialization.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::print_result):
	Fix memory leak.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::check):
	Simplify, reorganize, and comment.
	* src/tgbaalgos/emptinesscheck.hh (emptiness_check::root_component):
	Rename as ...
	(emptiness_check::root): ... this, to follow the paper.

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	* src/tgbaalgos/emptinesscheck.cc: Remove some superfluous
	`emptiness_check::'.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::remove_component):
	Rewrite.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::check,
	emptiness_check::counter_example): Simplify access to hashes
	after calls to find() for the same element..

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	* src/tgbaalgos/emptinesscheck.hh (connected_component::set_of_state):
	Rename as ...
	(connected_component::set_type): ... this, and define as a hash_set.
	(connected_component::has_state): New method.
	* src/tgbaalgos/emptinesscheck.cc (connected_component::has_state):
	New method.
	(emptiness_check::counter_example, emptiness_check::complete_cycle,
	emptiness_check::accepting_path): Simplify using has_state().
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	* src/tgbaalgos/emptinesscheck.hh (emptiness_check::seen_state_num):
	Rename as ...
	(emptiness_check::h): ... this, and define as a hash_map.
	(emptiness_check::remove_component): Remove superfluous state_map
	argument.
	* src/tgbaalgos/emptinesscheck.cc: Adjust.

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	* src/tgbaalgos/emptinesscheck.hh, src/tgbaalgos/emptinesscheck.cc:
	Remove superfluous includes.

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	* src/tgbaalgos/emptinesscheck.hh (emptiness_check::emptiness_check):
	New, take the automaton to work on, and store it ...
	(emptiness_check::aut_): ... in this new attribute.
	(emptiness_check::tgba_emptiness_check): Rename as ...
	(emptiness_check::check): ... this, and remove the automata
	argument.
	(emptiness_check::counter_example, emptiness_check::print_result,
	emptiness_check::remove_component, emptiness_check::accepting_path,
	emptiness_check::complete_cycle): Remove the automata argument.
	* src/tgbaalgos/emptinesscheck.cc, src/tgbatest/ltl2tgba.cc,
	iface/gspn/ltlgspn.cc: Adjust.

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	* src/tgbaalgos/emptinesscheck.hh (connected_component::not_null,
	connected_component::transition_acc,
	connected_component::nb_transition,
	connected_component::nb_state): Remove these unused attributes.
	(connected_component::connected_component): Merge the two
	definitions into one.
	(connected_component::~connected_component): Remove.
	(connected_component::isAccepted): Delete, unused.
	* src/tgbaalgos/emptinesscheck.cc
	(connected_component::connected_component,
	connected_component::~connected_component): Adjust.
	(connected_component::isAccepted): Delete.
	(spot):

	* src/tgbatest/emptchk.test: Typo.

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	* src/tgbaalgos/emptinesscheck.hh
	(emptiness_check::remove_component, emptiness_check::root_component,
	emptiness_check::seen_state_num, emptiness_check::suffix): Move in
	private part.
	(emptiness_check::arc_accepting, emptiness_check::todo): Move ...
	* src/tgbaalgos/emptinesscheck.cc
	(emptiness_check::tgba_emptiness_check): ... as local variables
	of this function.
	* src/tgbaalgos/emptinesscheck.hh (emptiness_check::vec_component):
	Move ...
	(emptiness_check::counter_example): ... as local variable of this
	function.
	* src/tgbaalgos/emptinesscheck.hh (pair_state_iter, triplet):
	Move ...
	* src/tgbaalgos/emptinesscheck.cc (pair_state_iter, triplet):
	... here.

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	* src/tgbaalgos/emptinesscheck.cc (emptiness_check::print_result):
	Indent output as in the magic search.

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	* src/tgbatest/spotlbtt.test: Add notice about long run time.

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	Merge emptinesscheckexplicit into ltl2tgba.
	* src/tgbatest/Makefile.am (check_PROGRAMS): Remove
	emptinesscheckexplicit.
	(emptinesscheckexplicit_SOURCES): Remove.
	(TESTS): Replace emptinesscheckexplicit.test by emptchke.test.
	* src/tgbatest/emptinesscheckexplicit.cc,
	src/tgbatest/emptinesscheckexplicit.test: Delete.
	* src/tgbatest/empchke.test: New file.
	* src/tgbatest/ltl2tgba.cc: Add support for -X.

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	Merge emptiness-checks tests into ltl2tgba.
	* src/tgbatest/Makefile (check_PRORGRAMS): Remove
	emptinesscheck and ltlmagic.
	(emptinesscheck_SOURCES, ltlmagic_SOURCES): Remove.
	(TESTS): Replace emptinesscheck.test and ltlmagic.test by
	emptchk.test.
	* src/tgbatest/emptinesscheck.test, src/tgbatest/ltlmagic.test:
	Delete.
	* src/tgbatest/emptchk.test: New file.
	* src/tgbatest/emptinesscheck.cc, src/tgbatest/ltlmagic.cc:
	Delete.
	* src/tgbatest/ltl2tgba.cc: Add support for -e, -E, -m, -M, and -n.

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	* src/tgbaalgos/emptinesscheck.cc
	(emptiness_check::tgba_emptiness_check): Do not print anything.
	(emptiness_check::counter_example): Assume that tgba_emptiness_check
	has already been called.

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	* src/tgbaalgos/emptinesscheck.hh, src/tgbaalgos/emptinesscheck.cc
	(emptiness_check::seq_counter, emptiness_check::periode): Rename as ...
	(emptiness_check::prefix, emptiness_check::period): ... these.

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	* src/tgbaalgos/emptinesscheck.cc
	(emptiness_check::tgba_emptiness_check,
	emptiness_check::accepting_path): Simplify BDD operations.

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	* src/tgbaalgos/emptinesscheck.cc, src/tgbaalgos/emptinesscheck.hh:
	Reindent.
	(emptiness_check::~emptiness_check, emptiness_check::emptiness_check):
	Remove, unused.

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	* iface/gspn/ltlgspn.cc (main): Allow invocations with
	only one atomic proposition.

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	* src/misc/bddalloc.cc (bdd_allocator::initialize): Augment
	bdd_init()'s arguments.

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	* iface/gspn/ltlgspn.cc: Use command-line options to
	select algorithms, not #defines.
	* iface/gspn/Makefile.am (check_PROGRAMS): Remove eltlgspn-srg,
	efmgspn-srg, fmgspn-rg, and fmgspn-srg and their associated
	source variables.  These are all replaced by
	ltlgspn-rg and ltlgspn-srg.
	* iface/gspn/dcswavefm.test, iface/gspn/dcswaveltl.test,
	iface/gspn/dcswaveeltl.test, iface/gspn/udcsefm.test,
	iface/gspn/udcseltl.test, iface/gspn/udcsfm.test,
	iface/gspn/udcsltl.test: Adjust calls to ltlgspn-srg.

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	* iface/gspn/Makefile.am (XFAIL_TESTS): Remove.

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	* iface/gspn/ltlgspn.cc: We call tgba_emptiness_check before
	counter_example. And we print the prefix and the periode of
	counter_example's result.
	* src/tgbatest/emptinesscheckexplicit.cc (main):
	We call tgba_emptiness_check before counter_example.
	* src/tgbatest/emptinesscheck.cc (main):
	We call tgba_emptiness_check before counter_example.
	* src/tgbaalgos/emptinesscheck.hh (spot):
	(spot::print_result): New methode to print the prefix and the
	periode of counter_example's result.
	* src/tgbaalgos/emptinesscheck.cc (spot): counter_example doesn't
	call tgba_emptiness_check. counter_example must be executed after
	calling tgba_emptiness_check.  Remove tgba_emptiness_check calls.
	(print_result): New methode to print the prefix and the
	periode of counter_example's result.  Remove most of all std::cout
	during execution of emptiness_check's methodes.

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	* iface/gspn/udcsfm.test, iface/gspn/udcsefm.test: New files.
	* iface/gspn/Makefile.am (TESTS) Add them.
	(check_PROGRAMS): Add emgspn-srg.
	(efmgspn_srg_SOURCES, efmgspn_srg_LDADD, efmgspn_srg_CPPFLAGS): New
	variables.
	* iface/gspn/udcsltl.test, iface/gspn/udcseltl.test: Complete.

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	* src/ltlparse/ltlscan.ll: Allow doubly quoted atomic propositions.

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	* iface/gspn/udcsltl.test, iface/gspn/udcseltl.test,
	iface/gspn/dcswaveltl.test, iface/gspn/dcswaveeltl.test,
	iface/gspn/dcswavefm.test: Do not accept $? = 0 when
	a failure is expected.

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	* iface/gspn/udcsltl.test, iface/gspn/udcseltl.test: New files
	* iface/gspn/Makefile.am (TESTS): Add them.
	(XFAIL_TESTS): Add udcseltl.test.
	* iface/gspn/example/udcs/udcs.net, iface/gspn/example/udcs/udcs.def
	iface/gspn/example/udcs/udcs.tobs: New files.
	* iface/gspn/Makefile.am (EXTRA_DIST): Add them.

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	* iface/gspn/Makefile.am (check_PROGRAMS): Add eltlgspn-srg.
	(eltlgspn_srg_SOURCES, eltlgspn_srg_LDADD, eltlgspn_srg_CPPFLAGS):
	New variables.
	(TESTS): Add dcswaveeltl.test.
	* iface/gspn/dcswaveeltl.test: New file.
	* iface/gspn/ltlgspn.cc [CEC]: Use emptiness_check.

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	* m4/debug.m4, m4/devel.m4, m4/gccoptim.m4, m4/ndebug.m4: New files.
	* Makefile.am (EXTRA_DIST): Add them.
	* configure.ac: Call adl_ENABLE_DEVEL, adl_ENABLE_DEBUG, ad_GCC_OPTIM,
	and adl_NDEBUG.

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	* src/tgba/state.hh (state_ptr_less_than, state_ptr_equal):
	Declare as std::binary_function.
	(state_ptr_hash): Declare as std::unary_function.
	* src/tgbaalgos/lbtt.cc (state_acc_pair_equal,
	state_acc_pair_hash): Likewise.
	* src/misc/bddlt.hh (bdd_less_than): Likewise.
	* src/misc/hash.hh (ptr_hash, string_hash): Likewise.

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	* src/tgbatest/emptinesscheckexplicit.test,
	src/tgbatest/emptinesscheckexplicit.cc
	src/tgbatest/emptinesscheck.test,
	src/tgbatest/emptinesscheck.cc,
	src/tgbaalgos/emptinesscheck.cc,
	src/tgbaalgos/emptinesscheck.hh: New files.
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	* src/tgbaalgos/ltl2tgba.cc, src/tgbaalgos/ltl2tgba.hh: Rename as ...
	* src/tgbaalgos/ltl2tgba_lacim.cc, src/tgbaalgos/ltl2tgba_lacim.hh:
	... this, and rename ltl_to_tgba() as ltl_to_tgba_lacim as well.
	* iface/gspn/ltlgspn.cc, src/tgbatest/explprod.cc,
	src/tgbatest/ltl2tgba.cc, src/tgbatest/ltlmagic.cc,
	src/tgbatest/ltlprod.cc, src/tgbatest/mixprod.cc,
	src/tgbatest/tripprod.cc, wrap/python/spot.i,
	wrap/python/cgi/ltl2tgba.in, wrap/python/tests/interdep.py,
	wrap/python/tests/ltl2tgba.py: Adjust.

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	* src/tgba/state.hh: Include cassert.

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	* src/tgba/state.hh (state::hash): New method.
	(state_ptr_equal, state_ptr_hash): New functors.
	* src/tgba/statebdd.hh, src/tgba/statebdd.cc (state_bdd::hash):
	New method.
	* src/tgba/tgbaexplicit.hh, src/tgba/tgbaexplicit.cc
	(state_explicit::hash): New method.
	(ns_map, sn_map): Use Sgi::hash_map instead of std::map.
	* src/tgba/tgbaproduct.hh, src/tgba/tgbaproduct.cc
	(state_product::hash): New method.
	* src/tgba/tgbatba.cc (state_tba_proxy::hash): New method.
	* src/tgbaalgos/lbtt.cc (acp_seen, todo_set, seen_map): Redefine
	using Sgi::hash_map or Sgi::hash_set.
	(lbtt_reachable): Don't erase a key that is pointed to by an
	iterator.
	* src/tgbaalgos/reachiter.cc
	(tgba_reachable_iterator::~tgba_reachable_iterator): Likewise.
	* src/tgbaalgos/magic.cc (magic_search::~magic_search()): Likewise.
	* src/tgbaalgos/magic.hh (hash_type): Redefine using Sgi::hash_map.
	* src/tgbaalgos/reachiter.hh (seen_map): Redefine using Sgi::hash_map.
	* iface/gspn/gspn.cc (state_gspn::hash): New method.
	* src/misc/hash.hh (string_hash): New functor.

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	* src/tgba/tgbaexplicit.cc (tgba_explicit::all_accepting_conditions)
	Compute all_accepting_conditions_ from neg_accepting_conditions_,
	not by browsing the dictionary.  The dictionary also contains
	accepting conditions from other automata...  This bug was a
	consequence of the change from 2003-07-14.
	* src/tgbaalgos/save.cc (save_bfs::start()): Likewise, do not
	browse the dictionary to print accepting conditions.  Call
	->all_accepting_conditions() instead.
	* src/tgba/tgbaproduct.cc (tgba_product::tgba_product): Typo
	from 2003-08-22 in the computation of all_accepting_conditions_.
	* src/tgbatest/explpro3.test: New file.
	* src/tgbatest/Makefile.am (TESTS): Add explpro3.test.
	* src/tgbatest/explprod.test, src/tgbatest/explpro2.test,
	 src/tgbatest/tripprod.test: Sort the output using Perl.

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	Rewrite all std::map<const formula*, ...> as
	Sgi::hash_map<const formula*, ...>.

	* src/misc/hash.hh: New file.
	* src/misc/Makefile.am (misc_HEADERS): Add it.
	* src/ltlvisit/dotty.cc (dotty_visitor::map): Use a hash_map instead
	of a map.
	* src/tgba/bdddict.hh (bdd_dict::fv_map, bdd_dict::vf_map,
	bdd_dict::ref_set, bdd_dict::var_map): Define as hash_map or
	hash_set.
	* src/tgbaalgos/ltl2tgba_fm.cc (translate_dict::fv_map,
	translate_dict::vf_map): Likewise.
	* src/tgba/tgbabddconcretefactory.hh
	(tgba_bdd_concrete_factory::acc_map_): Likewise.
	* src/tgba/tgbatba.hh, src/tgbaalgos/reachiter.hh: Include <map>.

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	* src/tgba/state.hh (state_ptr_less_than): Make sure left is
	non-null.  Suggested by Denis Poitreneaud.

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	* wrap/python/Makefile.am (MAINTAINERCLEANFILES): Add
	buddy_wrap.cxx and buddy.py.

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	* src/tgbaalgos/magic.cc (seen_with_magic, seen_without_magic): Remove.

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	* wrap/python/cgi/ltl2tgba.in: Fix display of relations for
	tgba_bdd_concrete automata.

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	Fix computation of product acceptance conditions, when the
	two operands share some acceptance conditions.
	* src/tgba/tgbaproduct.hh (tgba_product::left_acc_complement_,
	tgba_product::right_acc_complement_): New attribute.
	* src/tgba/tgbaproduct.cc (tgba_product::tgba_product): Set them.
	(tgba_product::succ_iter): Use them.
	* src/tgba/explpro2.test: New file.
	* src/tgba/Makefile.am (TESTS): Add it.

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	* tgba/tgbaproduct.cc, tgba/tgbaproduct.hh:
	(state_bdd_product, tgba_product_succ_iterator): Rename as ...
	(state_product, tgba_succ_iterator_product): ... these.

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	* iface/gspn/dcswavefm.test: New file.
	* iface/gspn/Makefile.am (check_PROGRAMS): Add fmgspn-rg and
	fmgspn-srg.
	(fmgspn_rg_SOURCES, fmgspn_rg_CPPFLAGS, fmgspn_rg_LDADD,
	fmgspn_srg_SOURCES, fmgspn_srg_CPPFLAGS, fmgspn_srg_LDADD):
	New variables.
	(TESTS): Add dcswavefm.test.

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	* src/ltlast/formula.hh: Make it clear that ref() and unref()
	deals with one node, not a entire formula.

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	* configure.ac: Bump version to 0.0i.

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	* configure.ac, NEWS: Bump version to 0.0h.
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	* wrap/python/cgi/Makefile.am (CLEANFILES): Clean ltl2tgba.py.

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	* wrap/python/tests/ltl2tgba.test: Run $srcdir/ltl2tgba.py, not
	ltl2tgba.py.

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	This implements Couvreur's FM'99 ltl2tgba translation.
	* src/tgba/bdddict.cc (bdd_dict::is_registered): Split as ...
	(bdd_dict::is_registered_proposition, bdd_dict::is_registered_state,
	bdd_dict::is_registered_accepting_variable): ... these.
	* src/tgba/bdddict.hh: Likewise.
	* src/tgba/tgbaexplicit.cc (tgba_explicit::set_init_state): New method.
	(tgba_explicit::declare_accepting_condition): Arrange so that this
	function can be called during the construction of the automaton.
	(tgba_explicit::complement_all_accepting_conditions): New method.
	(tgba_explicit::has_accepting_condition): Adjust to call
	bdd_dict::is_registered_accepting_variable.
	* src/tgba/tgbaexplicit.hh (tgba_explicit::set_init_state,
	tgba_explicit::complement_all_accepting_conditions): New methods.
	* src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_fm.hh:
	New files.
	* src/tgbaalgos/Makefile.am (tgbaalgos_HEADERS,
	libtgbaalgos_la_SOURCES): Add them.
	* src/tgbaalgos/ltl2tgba.hh: Add bibtex entry in comment.
	* src/tgbatest/Makefile.am (check_PROGRAMS): Remove spotlbtt
	and tbalbtt.
	(tbalbtt_SOURCES, tbalbtt_CXXFLAGS, spotlbtt_SOURCES): Remove.
	* src/tgbatest/spotlbtt.cc: Delete, superseded by "ltl2tgba -F -t".
	* src/tgbatest/ltl2tgba.cc: Implement the -f and -F options.
	* src/tgbatest/spotlbtt.test: Use "ltl2tgba -F -t" instead of
	"spotlbtt", "ltl2tgba -F -t -D" instead of "tbalbtt", and add
	also check the ltl2tgba_fm translator.
	* wrap/python/spot.i: Wrap ltl2tgba_fm.
	* wrap/python/cgi/ltl2tgba.in: Add radio buttons to select
	between ltl2tgba and ltl2tgba_fm.
	* wrap/python/tests/ltl2tgba.py: Add support for the -f option.
	* wrap/python/tests/ltl2tgba.test: Try the -f option.

	varnum can be augmented by other allocator.  Keep track
	of a local varnum (lvarnum) in each allocator.
	* src/misc/bddalloc.cc (bdd_allocator::bdd_allocator): Initialize
	lvarnum.
	(bdd_allocator::extvarnum): New method.
	(bdd_allocator::allocate_variables): Use lvarnum and extvarnum.
	* src/misc/bddalloc.hh (bdd_allocator::extvarnum): New mathod.
	(bdd_allocator::lvarnum): New variable.

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	* src/tgba/state.hh, src/tgba/statebdd.hh, src/tgba/statebdd.cc:
	Remove the translate() method.  Useless since 2003-07-14.

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	* wrap/python/Makefile.am (SUBDIRS): Build `.' first.
	* wrap/python/cgi/Makefile.am (ltl2tgba.py): Depend on Makefile.

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	Revamp the multop interface to allow some basic optimizations like
	not constructing a single-child multop.
	* src/ltlast/multop.hh (multop::instance(type)): Remove.
	(multop::instance(type, formula*, formula*)): Return a formula*.
	(multop::instance(type, vec*)): Make it public and return a formula*.
	(multop::add_sorted, multop::add):
	* src/ltlast/multop.cc (multop::instance(type, vec*)): Rewrite.
	(multop::instance(type)): Delete.
	(multop::instance(type, formula*, formula*)): Adjust.
	(multop::add_sorted, multop::add): Remove.
	* src/ltlvisit/clone.cc (clone_visitor::visit(multop*)) Adjust.
	* src/ltlvisit/nenoform.cc
	(negative_normal_form_visitor::::visit(multop*)) Adjust.
	* src/ltltest/equals.test: Make sure `a & a' and `a' are equals.
	* wrap/python/tests/ltlsimple.py: Adjust.

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	* src/tgba/succiterconcrete.cc, src/tgba/tgbaexplicit.cc,
	src/tgba/tgbatba.cc, src/tgbaalgos/lbtt.cc: Use `-' instead of `& !'
	between two BDDs.  That's one less call to BuDDy.

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	* src/tgbatest/tgbaread.test, src/tgbatest/explicit.test:
	Adjust expected output after 2003-08-07's change.

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	* src/tgba/bdddict.hh: Typo in comments.

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	* src/ltlenv/environment.hh: Typo in comments.

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	* src/ltlparse/ltlparse.yy: Handle and diagnose mismatched parentheses.
	* src/ltltest/parseerr.test: Add some examples.

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	* wrap/python/cgi/ltl2tgba.in: Convert GIFs to PNGs.  Restrict
	the size of dot's output to 1024x1024.
	* src/tgbaalgos/dotty.cc (dotty_bfs::start): Do not preset
	the size of the graph.  Set height=0 for the invisible state.

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	* src/ltlparse/ltlparse.yy: Fix precedence OP_OR < OP_XOR < OP_AND.
	* src/ltlast/binop.cc (binop::instance): Order operands for
	associative operators, so that e.g. "a xor b" and "b xor a" are
	mapped to the same formula.
	* src/ltltest/equals.test: Check this.

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	* src/ltlvisit/dotty.cc (draw_node_): s/shabe/shape/.
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	(visit): Draw rectangular nodes for atomic propositions and
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	constant.  This is an attempt to mimic BuDDy's output.

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	* wrap/python/cgi/ltl2tgba.in: Handle show_formula_dot and
	show_formula_gif.

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	* src/ltlvisit/dotty.hh (dotty): Move the ostream argument first.
	* src/ltlvisit/dump.hh (dump): Likewise.
	* src/ltltest/equals.cc, src/ltltest/readltl.cc,
	src/ltlvisit/dotty.cc, src/ltlvisit/dump.cc: Adjust.

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	* src/misc/version.hh, src/misc/version.cc: New files.
	* src/misc/Makefile.am (libmisc_la_SOURCES, misc_HEADERS): Add them.
	* wrap/python/spot.i: Include misc/version.hh.
	* wrap/python/cgi/ltl2tgba.in: Print spot.version().

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	* README: Update layout.

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	* wrap/python/cgi/Makefile.am, wrap/python/cgi/ltl2tgba.in,
	wrap/python/cgi/README: New files.
	* wrap/python/Makefile.am (SUBDIRS): Add cgi.
	* configure.ac: Output wrap/python/cgi/Makefile.

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	* wrap/python/spot.i: Add an ostringstream emulation.

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	* wrap/python/spot.i: Add an ofstream emulation.

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	* wrap/python/spot.i: Declare spot::tgba::get_init_state,
	spot::tgba::succ_iter, and spot::tgba_succ_iterator::current_state
	as constructors.

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	* wrap/python/Makefile.am (lib_LTLIBRARIES)
	(libspotswigpy_la_SOURCES, libspotswigpy_la_CFLAGS)
	(libspotswigpy_la_LDFLAGS): New variables.
	(_spot_la_LIBADD, _buddy_la_LDFLAGS): Link with libspotswigpy.la
	($(srcdir)/spot_wrap.cxx, $(srcdir)/buddy_wrap.cxx): Run
	swig with -c.
	* wrap/python/tests/libpy.c: New file.
	* wrap/python/tests/run.in: Run python if no arguments are given.
	* wrap/python/tests/interdep.py: New file.
	* wrap/python/tests/Makefile.am (TESTS): Add interdep.py.

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	* wrap/python/spot.i: Declare spot::ltl_to_tgba as a constructor.
	* wrap/python/tests/ltl2tgba.py: Do not force `thisown=1' on tgba
	objects.
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	* wrap/python/spot.i: Include headers from tgba/ and tgbaalgos/.
	* wrap/python/tests/ltl2tgba.py, wrap/python/tests/ltl2tgba.test:
	New files.
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	* wrap/python/tests/Makefile.am (TESTS): Add ltl2tgba.test.
	(EXTRA_DIST): Add ltl2tgba.py.
	* wrap/python/tests/run.in: Distinguish *.py and *.test.

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	* wrap/python/tests/ltlparse.py: New file.
	* wrap/python/tests/Makefile.am (TESTS): Add it.

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	* wrap/python/buddy.i: New file.
	* wrap/python/Makefile.am (EXTRA_DIST): Add it.
	(python_PYTHON, MAINTAINERCLEANFILES): Add buddy.py.
	(pyexec_LTLIBRARIES): Add _buddy.la.
Alexandre Duret-Lutz's avatar
spacing    
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	(_buddy_la_SOURCES, _buddy_la_LDFLAGS, $(srcdir)/buddy_wrap.cxx)
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	($(srcdir)/buddy.py): New.
	* wrap/python/tests/bddnqueen.py: New file.
	* wrap/python/tests/Makefile.am (TESTS): Add it.

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	* src/ltlvisit/lunabbrev.cc, src/ltlvisit/lunabbrev.hh: Merge the
	two unabbreviate_logic definitions (const and non-const) into a
	function that takes a const formula* and return a non-const
	formula*.  Since formula* is convertible to const formula*, and
	the const version of the function just called the non-onst one, it
	makes no sense to keep both.  Also, it confused Swig.
	* src/ltlvisit/nenoform.cc, src/ltlvisit/nenoform.hh: Likewise
	for negative_normal_form.
	* src/ltlvisit/tunabbrev.cc, src/ltlvisit/tunabbrev.hh: Likewise
	for unabbreviate_ltl.
	* src/ltlvisit/clone.cc, src/ltlvisit/clone.hh: Likewise for clone.
	* src/ltlvisit/destroy.cc, src/ltlvisit/destroy.hh: Likewise
	for destroy.

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	* configure.ac: Bump version to 0.0g.
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	* configure.ac, NEWS: Bump version to 0.0f.
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	* iface/gspn/simple.test, iface/gspn/dcswave.test,
	iface/gspn/dcswaveltl.test: Make sure the example directory
	is writable.
	* m4/lbtt.m4, m4/buddy.m4: Always configure buddy/ and lbtt/,
	regardless of the --with-included-buddy and --with-included-lbtt
	settings.

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	* wrap/python/Makefile.am (python_PYTHON, _spot_la_SOURCES):
	Explicitely refer to spot_wrap.cxx and spot.py as
	$(srcdir)/spot_wrap.cxx and $(srcdir)/spot.py.
	(spot_wrap.cxx, spot.py):

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	* wrap/python/Makefile.am (spot_wrap.cxx, spot.py): Lookup
	spot.i in $(srcdir).

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	* configure.ac: Output wrap/python/tests/Makefile
	and wrap/python/tests/run.
	* wrap/python/Makefile.am (SUBDIRS): New variable.
	* wrap/python/spot.i: Include all formulae headers from ltlast/,
	as well as ltlvisit/destroy.hh.
	(spot::ltl::formula::__cmp__, spot::ltl::formula::__str__): New
	functions.
	* wrap/python/tests/Makefile.am, wrap/python/tests/ltlsimple.py,
	wrap/python/tests/run.in: New files.

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	* wrap/python/ltihooks.py: New file.
	* wrap/python/Makefile.am (EXTRA_DIST): Add ltihooks.py.

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	* wrap/Makefile.am, wrap/spot.i: Move ...
	* wrap/python/Makefile.am, wrap/python/spot.i: ... here.
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	* wrap/Makefile.am: New file.
	* configure.ac: Output wrap/python/Makefile.

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	* src/misc/const_sel.hh: Delete.
	* src/misc/Makefile.am (misc_HEADERS): Remove const_sel.hh.

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	* src/tgbaalgos/magic.cc, src/tgbaalgos/reachiter.cc: Include cassert.
	* iface/Makefile.am (SUBDIRS): Recurse in gspn only if condition
	WITH_GSPN.

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	* iface/gspn/gspn.cc (tgba_gspn::format_state): Call gspn's
	print_state.

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	* iface/gspn/dcswaveltl.test: Check for a false formula too.
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	* iface/gspn/dcswaveltl.test, iface/gspn/ltlgspn.cc: New files.
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	* iface/gspn/Makefile.am (TESTS): Add dcswaveltl.test.
	(ltlgspn_rg_LDADD, ltlgspn_srg_LDADD, ltlgspn_rg_SOURCES)
	(ltlgspn_srg_SOURCES): New variables.
	(check_PROGRAMS): Add ltlgspn-rg and ltlgspn-srg.

	* iface/gspn/Makefile.am (gspn_HEADERS, gspndir): Install
	gspn.hh.

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	* src/tgba/tgba.hh, src/tgba/tgba.cc
	(tgba::project_state): New method.
	* src/tgba/tgbaproduct.hh, src/tgba/tgbaproduct.cc
	(tgba_product::project_state): New method.
	* src/tgba/tgbabta.hh, src/tgba/tgbabta.cc
	(tgba_bta_proxy::project_state): New method.
	* src/tgbaalgos/magic.cc (magic_search::print_result): Take
	a restrict argument.

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	* src/ltlparse/ltlscan.ll: Allow /\, \/, and xor, used in LBTT.
	* src/ltltest/parse.test: Test them.

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	* src/tgbaalgos/lbtt.cc: Typos.

	* lbtt/: Upgrade to lbtt 1.0.2.

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	* src/tgbatest/Makefile.am (check_PROGRAMS): Add tbalbtt.
	(tbalbtt_SOURCES, tbalbtt_CXXFLAGS): New variables.
	* src/tgbatest/spotlbtt.cc [TBA]: Build tba proxies conditionally.
	* src/tgbatest/spotlbtt.test: Include tbalbtt in the tests.

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	* src/tgba/tgbatba.hh, src/tgba/tgbatba.cc
	(tgba_tba_proxy::state_is_accepting): New method.
	* src/tgbaalgos/magic.hh, src/tgbaalgos/magic.cc: New files.
	* src/tgbaalgos/Makefile.am (libtgbaalgos_la_SOURCES,
	tgbaalgos_HEADERS): Add them.
	* src/tgbatest/ltlmagic.cc, src/tgbatest/ltlmagic.test: New files.
	* src/tgbatest/Makefile.am (TESTS, ltlmagic_SOURCES,
	check_PROGRAMS): Add them.

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	* src/tgba/tgba.hh (tgba::~tgba): Make it public.
	* src/tgba/tgbatba.cc, src/tgba/tgbatba.hh: New files.
	* src/tgba/Makefile.am (tgba_HEADERS): Add tgbatba.hh.
	(libtgba_la_SOURCES): Add tgbatba.cc.
	* src/tgbatest/ltl2tgba.cc: Add option -D.

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	* src/tgbaalgos/lbtt.cc (bdd_less_than): Move ...
	* src/misc/bddlt.hh: ... in this new file.
	* src/misc/Makefile.am (misc_HEADERS): Add bddlt.hh.

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	* iface/gspn/dcswave.test: Comment state space sizes.

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	* src/tgbaalgos/Makefile.am (tgbaalgos_HEADERS): Add reachiters.hh.
	(libtgbaalgos_la_SOURCES): Add reachiters.cc.
1174
	* src/tgbaalgos/dotty.cc, src/tgbaalgos/save.cc: Rewrite using
1175
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	spot::tgba_reachable_iterator_breadth_first.
	* src/tgbatest/explicit.test, src/tgbatest/tgbaread.test,
	src/tgbatest/tripprod.test: Adjust expected output.

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2003-07-24  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

	* configure.ac: Output iface/gspn/defs.
	* iface/gspn/Makefile.am (EXTRA_DIST): Add $(TESTS).
	(TESTS, check_SCRIPTS, distclean-local): New.
1184
	* iface/gspn/dcswave.test, iface/gspn/simple.test,
1185
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	iface/gspn/defs.in: New files.
	* iface/gspn/dottygspn.cc (main): Take the list of properties
	of interest in argument.

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2003-07-23  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

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	* iface/gspn/examples/DCSwave/DCSWave.def,
	iface/gspn/examples/DCSwave/DCSWave.net
	iface/gspn/examples/DCSwave/DCSWave.tobs,
	iface/gspn/examples/simple/simple.def,
	iface/gspn/examples/simple/simple.net,
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	iface/gspn/examples/simple/simple.tobs: New files, from
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	Yann Thierry-Mieg.
	* iface/gspn/Makefile.am (EXTRA_DIST): New variables.

	* iface/gspn/gspn.cc (tgba_gspn_private_::tgba_gspn_private_):
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	Rethrow caught expections.

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2003-07-22  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

	* m4/gspnlib.m4: Check for libgspnRG.a and libgspnSRG.a.
	Define LIBGSPNRG_LDFLAGS and LIBGSPNSRG_LDFLAGS, not
	LIBGSPN_LDFLAGS.
	* iface/gspn/Makefile.am: Adjust, build dottygspn-rg and
	dottygspn-srg instead of dottygspn.
	* iface/gspn/gspn.cc (EVENT_TRUE): Undefine.
	(tgba_gspn_private_::~tgba_gspn_private_): Free all_indexes.
	* iface/gspn/dottygspn.cc (main): Destroy the automaton before
1213
	its dictionary.
1214

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2003-07-17  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

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	Now succ_iter() can fetch extra information from
	the root of a product to reduce its number of successors.
	* src/tgba/Makefile.am (libtgba_la_SOURCES): Add tgba.cc.
	* src/tgba/tgba.hh (tgba::succ_iter): Add the global_state and
	global_automaton arguments.
	(tgba::support_conditions, tgba::support_variables,
	tgba::compute_support_conditions, tgba::compute_support_variables):
	New functions.
	(tgba::last_support_conditions_input_,
	tgba::last_support_conditions_output_,
	tgba::last_support_variables_input_,
	tgba::last_support_variables_output_): New attributes.
	* src/tgba/tgbabddconcrete.cc (tgba_bdd_concrete::succ_iter):
	Handle the two new arguments.
	(tgba_bdd_concrete::compute_support_conditions,
	tgba_bdd_concrete::compute_support_variables): Implement them.
	* src/tgba/tgbabddconcrete.hh: Adjust.
	* src/tgba/tgbaexplicit.cc (tgba_explicit::succ_iter):	Ignore
	the two new arguments.
	(tgba_explicit::compute_support_conditions,
	tgba_explicit::compute_support_variables): Implement them.
	* src/tgba/tgbaexplicit.hh: Adjust.
1239
	* src/tgba/tgbaproduct.cc (tgba_product::succ_iter): Handle the
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	two new arguments.
	(tgba_product::compute_support_conditions,
	tgba_product::compute_support_variables): Implement them.
	* src/tgba/tgbaproduct.hh: Adjust.
	* iface/gspn/gspn.cc (tgba_gspn_private_::last_state_cond_input,
	tgba_gspn_private_::last_state_cond_output,
	(tgba_gspn_private_::tgba_gspn_private_): Set last_state_cond_input.
	(tgba_gspn_private_::~tgba_gspn_private_): Delete
	last_state_cond_input.
	(tgba_gspn_private_::state_conds): New function, eved out
	from tgba_gspn::succ_iter.
	(tgba_gspn::succ_iter): Use it.  Use the two new arguments.
	(tgba_gspn::compute_support_conditions,
	tgba_gspn::compute_support_variables): New functions.
	* iface/gspn/gspn.hh: Adjust.

	* iface/gspn/gspn.cc (EVENT_TRUE): Override temporarily.
1257
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	(tgba_gspn::succ_iter): Fix usage of cube.

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2003-07-16  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

	* m4/gspnlib.m4: New file.
	* configure.ac: Call AX_CHECK_GSPNLIB.
	* Makefile.am (EXTRA_DIST): Add m4/gspnlib.m4.
	* iface/gspn/Makefile.am (AM_CPPFLAGS): Add $(LIBGSPN_CPPFLAGS).
	(libspotgspn_la_LIBADD, check_PROGRAMS, dottygspn_SOURCES,
	dottygspn_LDADD): New variables.
	* iface/gspn/gspn.hh (gspn_interface): New class.
	(gspn_exeption): Take a string argument and adjust all callers.
	(operator<<): Define for gspn_exeption.
	* iface/gspn/gspn.cc (gspn_interface::gspn_interface,
	gspn_interface::~gspn_interface): New.
	* iface/gspn/gspnlib.h: Delete, it belongs to GSPN.
	* iface/gspn/dottygspn.cc: New file.

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2003-07-15  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

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	* m4/lbtt.m4 (AX_CHECK_LBTT): Set LBTT and LBTT_TRANSLATE
	when using an already installed lbtt.

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1308
	Homogenize passing of automata as pointers, not references.
	Disallow copy for security.

	* src/tgba/tgbabddconcrete.hh (tgba_bdd_concrete): Disallow copy.
	* src/tgba/tgbaexplicit.hh (tgba_explicit): Likewise.
	* src/tgba/tgbaexplicit.cc (tgba_explicit::operator=,
	tgba_explicit::tgba_explicit(tgba_explicit)): Remove.
	* src/tgba/tgbabddconcreteproduct.cc
	(tgba_bdd_concrete_product_factory::tgba_bdd_concrete_product_factory,
	product): Take operand automata as pointers.
	* src/tgba/tgbabddconcreteproduct.hh (product): Likewise.
	* src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh:
	(tgba_product): Disallow copy.
	(tgba_product::tgba_product): Take operand automata as pointers.
	* src/tgbaalgos/dotty.cc (dotty_state, dotty_rec, dotty_reachable):
	Take tgba arguments as pointer.
	* src/tgbaalgos/dotty.hh (dotty_reachable): Likewise.
	* src/tgbaalgos/lbtt.cc (fill_todo, lbtt_reachable): Likewise.
	* src/tgbaalgos/lbtt.hh (lbtt_reachable): Likewise.
	* src/tgbaalgos/ltl2tgba.cc, src/tgbaalgos/ltl2tgba.hh (ltl_to_tgba):
	Likewise.
	* src/tgbaalgos/save.cc (save_rec, tgba_save_reachable): Likewise.
	* src/tgbaalgos/save.hh (save): Likewise.
	* src/tgbatest/explicit.cc, src/tgbatest/explprod.cc,
	src/tgbatest/ltl2tgba.cc, src/tgbatest/ltlprod.cc,
	src/tgbatest/mixprod.cc, src/tgbatest/readsave.cc,
	src/tgbatest/spotlbtt.cc, src/tgbatest/tgbaread.cc,
	src/tgbatest/tripprod.cc: Likewise.

1309
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1322
2003-07-14  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

	Before this change, all automata would construct their own
	dictionaries (map of BDD variables to LTL formulae).  This was
	cumbersome, because to multiply two automata we had to build a
	common dictionary (the union of the two LTL formula spaces), and
	install wrappers to translate each automaton's BDD answers into
	the common dictionary.  This translation, that had to be repeated
	when several products were nested, was time consuming and was a
	hindrance for some optimizations.
	In the new scheme, all automata involved in a product must
	share the same dictionary.  An empty dictionary should be
	constructed by the user and passed to the automaton' constructors
	as necessary.
1323
	This huge change removes more code than it adds.
1324
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1382

	* src/Makefile.am (libspot_la_LIBADD): Add misc/libmisc.la.
	* src/misc/bddalloc.hh, src/misc/bddalloc.cc: New files.  These
	partly replace src/tgba/bddfactory.hh and src/tgba/bddfactory.cc.
	* src/misc/Makefile.am: Adjust to build bddalloc.hh and bddalloc.cc.
	* src/tgba/bddfactory.hh, src/tgba/bddfactory.cc,
	src/tgba/dictunion.hh, src/tgba/dictunion.cc,
	src/tgba/tgbabdddict.hh, src/tgba/tgbabdddict.cc,
	src/tgba/tgbabddtranslatefactory.hh,
	src/tgba/tgbabddtranslatefactory.cc,
	src/tgba/tgbatranslateproxy.hh, src/tgba/tgbatranslateproxy.cc:
	Delete.
	* src/tgba/bdddict.hh, src/tgba/bdddict.cc: New files.  These
	replaces tgbabdddict.hh and tgbabdddict.cc, and also part of
	bddfactory.hh and bddfactory.cc.
	* src/tgba/bddprint.cc, src/tgba/bddprint.hh: Adjust to
	use bdd_dict* instead of tgba_bdd_dict&.
	* src/tgba/succiterconcrete.cc (succ_iter_concrete::next()):
	Get next_to_now from the dictionary.
	* src/tgba/tgba.hh (tgba::get_dict): Return a bdd_dict*,
	not a const tgba_bdd_dict*.
	* src/tgba/tgbabddconcrete.cc, src/tgba/tgbabddconcrete.hh:
	Adjust to use the new dictionary, stored in data_.
	* src/tgba/tgbabddconcretefactory.cc,
	src/tgba/tgbabddconcretefactory.hh: Likewise.  Plus
	now_to_next_ is now also stored in the dictionary.
	* src/tgba/tgbabddconcreteproduct.cc: Likewise.  Now
	that both operand share the same product, there is not
	point in using tgba_bdd_translate_factory.
	* src/tgba/tgbabddcoredata.cc, src/tgba/tgbabddcoredata.hh:
	Store a bdd_dict (taken as constructor argument).
	(tgba_bdd_core_data::~tgba_bdd_core_data): Remove.
	(tgba_bdd_core_data::translate): Remove.
	(tgba_bdd_core_data::next_to_now): Remove (now in dict).
	(tgba_bdd_core_data::dict): New pointer.
	* src/tgba/tgbabddfactory.hh: (tgba_bdd_factory::get_dict): Remove.
	* src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh:
	Adjust to use the new dictionary.
	* src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh: Likewise.  Do
	not use tgba_bdd_dict_union and tgba_bdd_translate_proxy anymore.
	* src/tgbaalgos/lbtt.cc, src/tgbaalgos/save.cc: Adjust to
	use bdd_dict* instead of tgba_bdd_dict&.
	* src/tgbaalgos/ltl2tgba.cc, src/tgbaalgos/ltl2tgba.cc: Likewise.
	(ltl_to_tgba): Take a dict argument.
	* src/tgbaparse/public.hh (tgba_parse): Take a dict argument.
	* src/tgbaparse/tgbaparse.yy (tgba_parse): Take a dict argument.
	* src/tgbatest/explicit.cc, src/tgbatest/explprod.cc,
	src/tgbatest/ltlprod.cc, src/tgbatest/mixprod.cc,
	src/tgbatest/readsave.cc, src/tgbatest/spotlbtt.cc,
	src/tgbatest/tgbaread.cc, src/tgbatest/tripprod.cc: Instantiate
	a dictionary, and pass it to the automata' constructors.
	* src/tgbatest/ltl2tgba.cc: Likewise, and remove the -o (defrag)
	option.
	* iface/gspn/gspn.hh (tgba_gspn::tgba_gspn): Take a bdd_dict argument.
	(tgba_gspn::get_dict): Adjust return type.
	* iface/gspn/gspn.cc: Do not use bdd_factory, adjust to
	use the new dictionary instead.

2003-07-13  Alexandre Duret-Lutz  <aduret@src.lip6.fr>
1383

1384
1385
	* configure.ac: Bump version to 0.0e.

1386
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1388
	* configure.ac: Bump version to 0.0d.
	* NEWS, README: New files.

1389
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2003-07-12  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

1391
1392
	* m4/lbtt.m4: Run lbtt-translate, not lbtt.

1393
1394
	* iface/gspn/gspn.cc: Include cassert.

1395
1396
2003-07-10  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

1397
	* src/tgbaalgos/ltl2tgba.cc (ltl_trad_visitor::visit(multop)):
1398
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1400
	Forward root_ to children of And.
	(ltl_trad_visitor::recurse): Take a root argument.

1401
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1406
	* src/tgba/tgbabddconcretefactory.hh
	(tgba_bdd_concrete_factory::add_relation): Rename as ...
	(tgba_bdd_concrete_factory::constrain_relation): ... this.
	* src/tgba/tgbabddconcretefactory.cc, src/tgbaalgos/ltl2tgba.cc:
	Adjust.

1407
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	* src/tgbaalgos/ltl2tgba.cc (ltl_trad_visitor::visit(unop::G)): Do
	not create Now/Next variable when G is the root of the formula.
	(ltl_trad_visitor::ltl_trad_visitor): Take a root argument.
	(ltl_trad_visitor::recurse): Create a new visitor, do not copy
	the current one.
	(ltl_to_tgba): Build ltl_trad_visitor with root = true.

	* src/tgbaalgos/ltl2tgba.cc (ltl_trad_visitor::visit(unop::X)):
	Remove FIXME about handling X(a U b) and X(a R b) better, it's
	done naturally.

1418
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	* src/tgbatest/spotlbtt.test: Make 100 rounds.

1420
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1423
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	* src/tgba/succiterconcrete.cc (tgba_succ_iterator_concrete::next):
	Fix so that !p.!Acc[g].Acc[f] + p.!Acc[g].Acc[f] + p.Acc[g].!Acc[f]
	is factored as !p.!Acc[g].Acc[f] + p.(!Acc[g].Acc[f] + Acc[g].!Acc[f]),
	not !Acc[g].Acc[f] + p.Acc[g].!Acc[f].

1425
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2003-07-09  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

1427
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	* lbtt/: New directory.  Contains a patched version of lbtt 1.0.1.
	* Makefile.am (MAYBE_LBTT): New variables.
	(SUBDIRS): Add $(MAYBE_LBTT).
	(EXTRA_DIST): Add m4/lbtt.m4.
	* configure.ac: Call AX_CHECK_LBTT.
	* m4/lbtt.m4: New file.
	* src/tgbatest/Makefile.am (check_PROGRAMS): Add spotlbtt.
	(spotlbtt_SOURCES): New variables.
	(TESTS): Add spotlbtt.test.
	(CLEANFILE): Add config.
	* src/tgbatest/defs.in (top_builddir, LBTT, LBTT_TRANSLATE): New
	substitutions.
	* src/tgbatest/spotlbtt.cc, src/tgbatest/spotlbtt.test: New files.

	* src/tgba/succiterconcrete.cc (tgba_succ_iterator_concrete::next):
1442
	Fix computation of states sharing the same accepting set.
1443

1444
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	Make sure we only output one initial state in LBTT's output.
	* src/tgbaalgos/lbtt.cc (fill_todo): Add the 'first' argument
	to designate initial states.
	(lbtt_reachable): Adjust calls to fill_todo.  Handle the
	fake initial state accepting conditions specially.
	* src/tgbaalgos/lbtt.hh: Update comments.

1451
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	* src/tgbaalgos/lbtt.cc (lbtt_reachable): Do not end transitions
	guards with -1 in output.

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2003-07-08  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

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	* src/tgbatest/ltl2tgba.cc: Add option -t to output the LBTT automata.
	* src/tgbaalgos/lbtt.cc, src/tgbaalgos/lbtt.hh: New files.
	* src/tgbaalgos/Makefile.am (tgbaalgos_HEADERS): Add lbtt.hh.
	(libtgbaalgos_la_SOURCES): Add lbtt.cc.
	* src/tgba/bddprint.cc (print_sat_handler): Put a space after "!".
	* src/tgbatest/readsave.test: Adjust spaces after "!".

1463
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	* src/ltlvisit/dump.cc: Strip useless spot::ltl:: prefixes.

1465
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2003-07-07  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

1467
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	First sketch of the GSPN wrapper objects.
	* iface/gspn/gspn.cc, iface/gspn/gspn.hh: New files.
	* iface/gspn/Makefile.am (libspotgspn_la_SOURCES): Add them.

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	* src/tgba/succiter.hh (current_state, current_conditions
	current_accepting_conditions): Mark as const.
1473
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	* src/tgba/succiterconcrete.cc, src/tgba/succiterconcrete.hh,
	src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh,
	src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh,
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1478
	src/tgba/tgbatranslateproxy.cc, src/tgba/tgbatranslateproxy.hh:
	Likewise.

1479
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	* iface/gspn/gspnlib.h: Fit 80 columns.
	[__cplusplus]: Wrap everything under extern "C".

	* src/tgba/succiterconcrete.hh
1483
	(tgba_succ_iterator_concrete::current_acc_): New attribute.
1484
	* src/tgba/succiterconcrete.cc
1485
	(tgba_succ_iterator_concrete::next): Set current_acc_.
1486
	(tgba_succ_iterator_concrete::current_accepting_conditions):
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	Simply return it.

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	* configure.ac: Output iface/Makefile and iface/gspn/Makefile.
	* iface/Makefile.am, iface/gspn/Makefile.am: New files.
	* Makefile.am (SUBDIRS): Add iface.
	* iface/gspn/gspnlib.h: New file, from Yann and Souheib.

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	* src/tgba/tgbabddcoredata.cc (tgba_bdd_core_data::tgba_bdd_core_data,
	tgba_bdd_core_data::translate): Handle all_accepting_conditions.
1496
	* src/tgba/tgbabddconcretefactory.cc
1497
1498
	(tgba_bdd_concrete_factory::finish): Fill all_accepting_conditions.

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2003-07-04  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

	* src/tgbaalgos/ltl2tgba.cc (ltl_trad_visitor::visit): Declare
	accepting conditions w.r.t. to Now variables, not Next.

1504
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2003-07-03  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

1506
	* src/tgba/tgbaproduct.cc (tgba_product_succ_iterator::first):
1507
	Simplify, do not call next_non_false_() if either side is done.
1508

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	* src/tgba/succiter.hh (tgba_succ_iterator::current_condition):
	State that this is a boolean function.
	* src/tgba/succiterconcrete.hh
	(tgba_succ_iterator_concrete::trans_dest_,
	tgba_succ_iterator_concrete::trans_set_,
	tgba_succ_iterator_concrete::trans_set_left_,
	tgba_succ_iterator_concrete::neg_trans_set_): Remove.
	* src/tgba/succiterconcrete.cc
	(tgba_succ_iterator_concrete::tgba_succ_iterator_concrete,
	tgba_succ_iterator_concrete::first): Adjust to removed members.
	(tgba_succ_iterator_concrete::next): Simplify, transitions
	are no labelled by boolean functions, not only conjunctions.
	Suggested by Denis Poitrenaud.

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	* src/tgba/tgbabddcoredata.hh (tgba_bdd_core_data::translate): New
	function.
	* src/tgba/tgbabddcoredata.cc (tgba_bdd_core_data::translate):
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	Likewise.
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	* src/tgba/tgbabddtranslatefactory.cc
	(tgba_bdd_translate_factory::tgba_bdd_translate_factory): Use
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	tgba_bdd_core_data::translate.

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	* src/tgba/tgbabddcoredata.hh (tgba_bdd_core_data::nownext_set):
	New attribute.
	* tgba/tgbabddcoredata.cc, tgba/tgbabddtranslatefactory.cc:
	Handle nownext_set.
	* src/tgba/succiterconcrete.cc
	(tgba_succ_iterator_concrete::next): Use nownext_set to simplify.

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	Rewrite tgba_succ_iterator_concrete::next for the fourth time
	(or is it the fifth?).

	* src/tgba/succiterconcrete.hh
	(tgba_succ_iterator_concrete::trans_dest_,
	tgba_succ_iterator_concrete::trans_set_,
	tgba_succ_iterator_concrete::trans_set_left_,
	tgba_succ_iterator_concrete::neg_trans_set_): New attributes.
	* src/tgba/succiterconcrete.cc
	(tgba_succ_iterator_concrete::tgba_succ_iterator_concrete): Initialize
	new members.
	(tgba_succ_iterator_concrete::first): Likewise.
	(tgba_succ_iterator_concrete::next): Rewrite.
	* tgba/tgbabddcoredata.hh (tgba_bdd_core_data::acc_set): New attribute.
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	* tgba/tgbabddcoredata.cc, tgba/tgbabddtranslatefactory.cc:
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	Handle acc_set.

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	* src/tgba/tgbabddtranslatefactory.cc
	(tgba_bdd_translate_factory::tgba_bdd_translate_factory): Translate
	varandnext_set.

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2003-06-30  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

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	* src/tgbaparse/tgbaparse.yy (lines): Expect at last one line.

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	* doc/Doxyfile.in (HAVE_DOT): Set to YES to output
	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.
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	* src/tgba/succiter.hh (tgba_bdd_succ_iterator::done):
	Mark as const.
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	* src/tgba/succiterconcrete.cc
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	(tgba_succ_iterator_concrete::done): Likewise.
	* src/tgba/succiterconcrete.hh
	(tgba_succ_iterator_concrete::done): Likewise.
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	* src/tgba/tgbaexplicit.cc
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	(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.
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	* 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.
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	* src/tgba/tgbabddcoredata.cc: Handle varandnext_set.
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	* doc/Doxygen.in: Enable LaTeX output.
	* doc/Makefile.am (spotref.pdf): New rule.
	(EXTRA_DIST): Add spotref.pdf.

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	* src/tgba/tgbabddconcretefactory.cc:
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	(tgba_bdd_concrete_factory::tgba_bdd_concrete_factory): New.
	(tgba_bdd_concrete_factory::create_state): Update now_to_next_.
	(tgba_bdd_concrete_factory::finish): Constraint Next variables
	in the relation.
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	* src/tgba/tgbabddconcretefactory.hh
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	(tgba_bdd_concrete_factory::now_to_next_): New variable.

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2003-06-28  Alexandre Duret-Lutz  <aduret@src.lip6.fr>

	Fix errors reported by ICC.

	* src/tgba/state.hh (state_ptr_less_than::operator()): Make it const.
	* src/tgba/tgbaproduct.cc: Include string.hh.
	* src/ltlast/multop.hh (multop::add, multop::add_sorted): Do
	not use qualified names in declarations.
	* m4/gccwarn.m4 (CF_GXX_WARNINGS): Fix GXX test.
	* src/ltlenv/defaultenv.hh, src/ltlenv/defaultenv.cc,
	src/ltlenv/environment.hh: Add virtual destructors.

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	* Makefile.am (EXTRA_DIST): Add HACKING.

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	* configure.ac: Bump version to 0.0c.

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	* configure.ac: Bump version to 0.0b.

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	* INSTALL: New file.

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	* src/tgba/ltl2tgba.hh, src/tgba/ltl2tgba.cc: Move ...
	* src/tgbaalgos/ltl2tgba.hh, src/tgbaalgos/ltl2tgba.cc: ... here.
	* src/tgba/Makefile.am, src/tgbaalgos/Makefile.am: Adjust.
	* src/tgba/public.hh: Do not include ltl2tgba.hh.
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	* src/tgbatests/explprod.cc, src/tgbatests/ltl2tgba.cc,
	src/tgbatests/ltlprod.cc, src/tgbatests/mixprod.cc,
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	src/tgbatests/reach.cc, src/tgbatests/tripprod.cc: Adjust inclusions.

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	* src/tgba/tgbabddcoredata.hh: Fix some Doxygen comments.
	* src/ltlast/formula.hh: More Doxygen comments.
	* src/tgba/tgba.hh: Use <tt> in Doxygen comments.

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	* doc/mainpage.dox: New file.
	* doc/Makefile.am (EXTRA_DIST): Add mainpage.dox.
	* doc/Doxyfile.in (INPUT): Add @srcdir@/mainpage.dox

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	* src/tgba/succiter.hh: Adjust comments about promises to
	refer to accepting conditions.
	* src/tgba/tgbabddconcretefactory.hh: Likewise.
	* src/tgba/tgbabddcoredata.hh: Likewise.
	* src/tgba/dictunion.cc: Likewise.
	* src/tgba/tgba.hh: Likewise.

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	* doc/Makefile.am (doc): Typo.
	* src/ltlvisit/tostring.hh (to_string): Add doxygen comments.
	* src/ltlast/multop.hh (multop::paircmp): Add doxygen comments.
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	* src/tgba/tgbaexplicit.hh (tgba_explicit::transtion,
	state_explicit, tgba_explicit_succ_iterator): Add doxygen comments.
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	* src/ltlvisit/postfix.hh: Typo.

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	* src/ltlast/Makefile.am (ltlastdir, ltlast_HEADERS): New variables.
	(libltlast_la_SOURCES): Move all headers to ltlast_HEADERS.
	* src/ltlenv/Makefile.am (ltlenvdir, ltlenv_HEADERS): New variables.
	(libltlenv_la_SOURCES): Move all headers to ltlenv_HEADERS.
	* src/ltlparse/Makefile.am (ltlparsedir, ltlparse_HEADERS): New
	variables.
	(libltlparse_la_SOURCES): Move all public headers to ltlparse_HEADERS.
	* src/ltlvisit/Makefile.am (ltlvisitdir, ltlvisit_HEADERS): New
	variables.
	(libltlvisit_la_SOURCES): Move all headers to ltlparse_HEADERS.
	* src/misc/Makefile.am (include_HEADERS): Rename as ..
	(misc_HEADERS): ... this.
	(miscdir): New variable.
	* src/tgba/Makefile.am (tgbadir, tgba_HEADERS): New variables.
	(libtgba_la_SOURCES): Move all headers to tgba_HEADERS.
	* src/tgbaalgos/Makefile.am (tgbaalgosdir, tgbaalgos_HEADERS):
	New variables.
	(libtgbaalgos_la_SOURCES): Move all headers to tgbaalgos_HEADERS.
	* src/tgbaparse/Makefile.am (tgbaparsedir, tgbaparse_HEADERS): New
	variables.
	(libtgbaparse_la_SOURCES): Move all public headers to
	tgbaparse_HEADERS.
	* src/tgbaparse/public.hh: Include ltlparse/location.hh, not
	location.hh.

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	* doc/Makefile.am (stamp): Prefix $(srcdir) explicitely.

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	* m4/buddy.m4 (BUDDY_LDFLAGS): Use $(top_builddir), not $(top_srcdir).
	* src/tgbaparse/Makefile.am (AM_CPPFLAGS): Add $(BUDDY_CPPFLAGS).

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	* doc/Makefile.am: Rewrite to run Doxygen whenever Doxyfile.in
	or configure.ac changes.  Distribute the html doc.
	* doc/Doxyfile.in (EXCLUDE_PATTERNS): Complete with
	useless Bison classes.
	(FILE_PATTERNS): Remove *.cc files.

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	Distribute BuDDy.  Compile and link with the included version if
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	explicitely requested (--with-included-buddy) or if there is now
	stuitable version already installed.

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	* buddy/: New directory.  Contains a patched version of BuDDy 2.2.
	* m4/buddy.m4: Make sure the installed BuDDy supports bdd_mergepairs.
	Honor --with-included-buddy and --without-included-buddy.  Define
	the BUDDY_LDFLAGS and BUDDY_CPPFLAGS output variables, and the
	WITH_INCLUDED_BUDDY Automake conditional
	* Makefile.am [WITH_INCLUDED_BUDDY] (MAYBE_SUBDIRS): New variable.
	(SUBDIRS): Prepend $(MAYBE_SUBDIRS).
	* src/Makefile.am (libspot_LDFLAGS): New variable.
	* src/tgba/Makefile.am (AM_CPPFLAGS): Add $(BUDDY_CPPFLAGS).
	* src/tgbaalgos/Makefile.am (AM_CPPFLAGS): Likewise.
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	* src/tgbatest/Makefile.am (AM_CPPFLAGS): Likewise.
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	* src/tgba/succiterconcrete.cc (tgba_succ_iterator_concrete::next):
	Rewrite using bdd_satoneset.  This time it's for real.  (I hope.)
	* src/tgba/succiterconcrete.hh (current_base_,
	current_base_left_): Delete.
	* tgba/tgbabddcoredata.hh (next_set): New variable.
	* tgba/tgbabddcoredata.cc, tgba/tgbabddtranslatefactory.cc: Adjust
	to update next_set.

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	* src/tgba/bddprint.hh, src/tgba/tgbabddconcretefactory.hh,
	src/tgba/tgbaproduct.hh: Fix Doxygen comments.

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	* src/tgba/succiterconcrete.hh (next_succ_set_): Rename as ...
	(succ_set_left_): ... this.
	(current_base_, current_base_left_): New variables.
	* src/tgba/succiterconcrete.cc (tgba_succ_iterator_concrete::first):
	Reset current_.
	(tgba_succ_iterator_concrete::next): Rewrite.
	(tgba_succ_iterator_concrete::current_state): Simplify.
	(tgba_succ_iterator_concrete::current_accepting_conditions): Remove
	atomic proposition with universal quantification.
	* src/tgba/ltl2tgba.cc (ltl_to_tgba): Normalize the formula.
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	* src/tgba/tgbabddconcrete.cc (tgba_bdd_concrete::set_init_state):
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	Complete the initial state.
	(tgba_bdd_concrete::succ_iter): Do not remove Now variable
	from the BDD passed to the iterator.
	* tgba/tgbabddcoredata.hh (notnow_set, var_set): New variables.
	* tgba/tgbabddcoredata.cc, tgba/tgbabddtranslatefactory.cc: Adjust
	to update notnow_set and var_set.

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	* src/tgbatest/ltl2tgba.cc: Support -v.

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	* src/tgbatest/ltl2tgba.cc (syntax): Fix usage message.

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	* src/tgbatest/tripprod.test, src/tgbatest/explprod.test: Sort
	accepting conditions.

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	* src/ltlvisit/nenoform.cc (negative_normal_form): New const variant.
	* src/ltlvisit/nenoform.hh (negative_normal_form): New const variant.
	* src/ltlvisit/lunabbrev.cc (unabbreviate_logic): New const variant.
	* src/ltlvisit/lunabbrev.hh (unabbreviate_logic): New const variant.
	* src/ltlvisit/tunabbrev.cc (unabbreviate_ltl): New const variant.
	* src/ltlvisit/tunabbrev.hh (unabbreviate_ltl): New const variant.

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	Switch from "promises" to "accepting sets".  Fix the definitions
	of these accepting sets so that they are really useful.  Provide
	an all_accepting_conditions() method for use in the emptyness
	check, and a neg_accepting_conditions() for products.  Predeclare
	TGBA accepting conditions in the i/o.
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	* 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