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