Do not treat true and false specially.  Otherwise it breaks
translation of F(false).
* src/tgbatest/explprod.test, src/tgbatest/tripprod.test: Do not
use true as acceptance condition.

* src/tgbaalgos/ltl2tgba_fm.cc (ltl_trad_visitor): Use Acc[b] as
acceptance condition for Fb, not Acc[Fb].

After this change, degeneralized automata are 40% smaller

in LBTT's statistics.

* src/tgba/tgbatba.cc (state_tba_proxy): Store an iterator,
pointing somewhere into the acceptance conditions list, instead of
an acceptance condition.
(state_tba_proxy::acceptance_iterator): New method.
(tgba_tba_proxy_succ_iterator): Adjust to use iterators too.
(tgba_tba_proxy_succ_iterator::current_state): If the current
transition is in several consecutive acceptance steps after the
expected one, advance many steps at once.
(tgba_tba_proxy::tgba_tba_proxy): Build the acceptance cycle
as a list, not a map.
(tgba_tba_proxy::get_init_state, tgba_tba_proxy::succ_iter):
Adjust.
* src/tgba/tgbatba.hh (tgba_tba_proxy::acc_cycle_): Declare as
a list, not a map.

all iterators on the stack.
(magic_search::check): Release iterators that are popped off the
stack.

with same destination and acceptance conditions directly, without
calling a->merge_transition().  If one transitions goes to "True",
subtract its conditions from all other transitions; this optimizes
a U b.

* src/ltlast/refformula.cc (ref_formula::ref_count_): New method.
* src/ltlast/atomic_prop.hh (atomic_prop::dump_instance): New method.
* src/ltlast/atomic_prop.cc (atomic_prop::dump_instance): New method.

* src/ObstackAlloc.h: ... this.  The problem is that alloc.h is a
system header in g++ < 3.0, and Darwin has a case-insensitive
filesystem.  System headers that include alloc.h pick the local
Alloc.h version.
* BuchiAutomaton.h, Configuration.h, DispUtil.cc,
ExternalTranslator.h, FormulaRandomizer.h, Graph.h.in,
LtlFormula.h, Makefile.am, NeverClaimAutomaton.h, PathEvaluator.h,
ProductAutomaton.h, SccIterator.h, SharedTestData.h,
StatDisplay.h, StateSpace.h, StateSpaceRandomizer.cc,
StringUtil.h, TestOperations.h, TestRoundInfo.h, TestStatistics.h,
UserCommandReader.h, UserCommands.h, main.cc: Adjust includes.

* NEWS: Update.

emptiness_check::check2): Document them.

iface/gspn/udcseltl.test: Exercize -e2.

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.

in comment.

in comment.

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.

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.

* 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().

reallocated.  This fixes a memory leak reported by
Souheib.Baarir@lip6.fr.

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()

(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.

tgba_gspn_eesrg::neg_acceptance_conditions): Forward to
data_->operand.

Do not skip this computation if from == to but the period is empty.

state.

the control automaton.

* iface/gspn/eesrg.hh: Likewise.

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

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

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

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.

* 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.

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

* src/ltlparse/ltlparse.yy: Add `%destructor's.