* src/eltlparse/eltlparse.yy: Adjust.
* src/ltlast/automatop.cc, src/ltlast/automatop.hh,
src/ltlvisit/clone.cc, src/ltlvisit/nenoform.cc: Clean the way we
handle the negation of automaton operators.
* src/ltlvisit/tostring.cc, src/ltlvisit/tostring.hh: Add an
optional argument to output a fully parenthesized string.
* src/tgbaalgos/eltl2tgba_lacim.cc: Fix it.
* src/tgbatest/eltl2tgba.cc: Add a new option (-L) to read formulae
from an LBTT-compatible file.
* src/tgbatest/eltl2tgba.test: A new tests.
* src/tgbatest/spotlbtt.test: Add LaCIM for ELTL.
for ELTL. This is a new version of the work started in 2008 with
LTL and ELTL formulae now sharing the same class hierarchy.
* configure.ac: Adjust for src/eltlparse/ and src/eltltest/
directories, and call AX_BOOST_BASE.
* m4/boost.m4: New file defining AX_BOOST_BASE([MINIMUM-VERSION]).
* src/Makefile.am: Add eltlparse and eltltest.
* src/eltlparse/: New directory. Contains the ELTL parser.
* src/eltltest/: New directory. Contains tests related to
ELTL (parser and AST).
* src/ltlast/Makefile.am: Adjust for ELTL AST files.
* src/ltlast/automatop.cc, src/ltlast/automatop.hh: New files.
Represent automaton operators nodes used in ELTL ASTs.
* src/ltlast/nfa.cc, src/ltlast/nfa.hh: New files. Represent
simple NFAs used internally by automatop nodes.
* src/ltlast/allnode.hh, src/ltlast/predecl.hh,
src/ltlast/visitor.hh: Adjust for automatop.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/clone.cc,
src/ltlvisit/clone.hh, src/ltlvisit/contain.cc,
src/ltlvisit/dotty.cc, src/ltlvisit/nenoform.cc,
src/ltlvisit/postfix.cc, src/ltlvisit/postfix.hh,
src/ltlvisit/reduce.cc, src/ltlvisit/syntimpl.cc,
src/ltlvisit/tostring.cc: Because LTL and ELTL formulae share the
same class hierarchy, LTL visitors need to handle automatop nodes
to compile. When it's meaningful the visitor applies on automatop
nodes or simply assert(0) otherwise.
* src/tgba/tgbabddconcretefactory.cc (create_anonymous_state),
src/tgba/tgbabddconcretefactory.hh (create_anonymous_state): New
function used by the LaCIM translation algorithm for ELTL.
* src/tgbaalgos/Makefile.am: Adjust for eltl2tgba_lacim* files.
* src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/eltl2tgba_lacim.hh: New files. Implementation of
the LaCIM translation algorithm for ELTL.
* src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_lacim.cc:
Handle automatop nodes in the translation by an assert(0).
* src/tgbatest/Makefile.am: Adjust for eltl2tgba.* files.
* src/src/tgbatest/eltl2tgba.cc, src/tgbatest/eltl2tgba.test: New
files
(to_string_visitor::visitor(const atomic_prop*)): Use is_bare_word
to better check which atomic proposition need to be quoted.
* src/ltlparse/ltlscan.ll: Do not allow identifiers starting with F_
or G_.
* src/ltltest/equals.test, src/ltltest/tostring.test: More tests.
to_string_visitor): Do not parenthesize the top-level formula.
* tgbatest/explicit.test, tgbatest/explpro2.test,
tgbatest/explpro3.test, tgbatest/explprod.test,
tgbatest/readsave.test, tgbatest/tgbaread.test,
tgbatest/tripprod.test: Adjust expected output.
* sanity/style.test: Fix regexes to catch an error seen in
tostring.cc.
(subformula): Recognize `ATOMIC_PROP OP_POST_POS' and
`ATOMIC_PROP OP_POST_NEG'.
* src/ltlparse/ltlscan.ll: Introduce the not_prop start condition,
to restrict the set of atomic propositions allowed in places
where they are not expected. Make `true' and `false' case insensitive.
* src/ltltest/parse.test, src/ltltest/tostring.test: More cases.
* src/ltlvisit/tostring.cc (to_string_visitor): Quote atomic
propositions equal to "true" or "false".
Convert a formula into a string parsable by Spin.
* src/tgbaalgos/neverclaim.hh, src/tgbaalgos/neverclaim.cc: New files.
Print the never claim in Spin format of a degeneralized TGBA.
* src/tgbaalgos/Makefile.am: Add them.
* src/tgbatest/ltl2tgba.cc: Add the option -N which outputs the
never claim in Spin format of a degeneralized TGBA.
* src/tgbatest/ltl2neverclaim.test: New file.
* src/tgbatest/Makefile.am: Add it.
(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.
spot::ltl:: prefixes.
(to_string(formula)): New function.
* src/ltlvisit/tostring.hh (to_string(formula)): Likewise.
* src/ltltest/tostring.cc: Use this new to_string function to
simplify.
* src/ltltest/tostring.cc: New files.
* src/ltlvisit/tostring.hh: From ast to string New files.
* src/ltlvisit/tostring.cc: From ast to string New files.
