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Introduce AndRat and OrRat operator.

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It was a mistake to try to overload And/Or LTL operator for these when
trivial simplification are performed.  The reason is so simple it is
embarassing: And(f,1)=f is a trivial identity that should not be
applied with AndRat.  E.g. AndRat(a;b, 1) is equal to 0, not a;b.

* src/ltlast/multop.hh, src/ltlast/multop.cc: Add the AndRat and OrRat
operators.
* src/ltlparse/ltlparse.yy: Build them.
* src/ltlvisit/mark.cc, src/ltlvisit/simplify.cc,
src/ltlvisit/tostring.cc, src/tgba/formula2bdd.cc,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_lacim.cc:
Adjust all switches.
This commit is contained in:
Alexandre Duret-Lutz 2012-04-18 19:20:43 +02:00
parent 35b41331f7
commit 691119c188
11 changed files with 916 additions and 759 deletions
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4
src/ltlparse/ltlparse.yy
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@ -354,7 +354,7 @@ sere: booleanatom
$$ = constant::false_instance();
}
| sere OP_AND sere
{ $$ = multop::instance(multop::And, $1, $3); }
{ $$ = multop::instance(multop::AndRat, $1, $3); }
| sere OP_AND error
{ missing_right_binop($$, $1, @2,
"length-matching and operator"); }
@ -364,7 +364,7 @@ sere: booleanatom
{ missing_right_binop($$, $1, @2,
"non-length-matching and operator"); }
| sere OP_OR sere
{ $$ = multop::instance(multop::Or, $1, $3); }
{ $$ = multop::instance(multop::OrRat, $1, $3); }
| sere OP_OR error
{ missing_right_binop($$, $1, @2, "or operator"); }
| sere OP_CONCAT sere