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* src/ltlparse/ltlparse.yy: Fix precedence OP_OR < OP_XOR < OP_AND.

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* 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.
This commit is contained in:
Alexandre Duret-Lutz 2003-08-06 10:47:42 +00:00
parent 65b6a4d8da
commit 0d32884d20
4 changed files with 31 additions and 2 deletions
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4
src/ltlparse/ltlparse.yy
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@ -32,7 +32,9 @@ using namespace spot::ltl;
%}
/* Logical operators. */
%left <token> OP_AND OP_XOR OP_OR
%left <token> OP_OR
%left <token> OP_XOR
%left <token> OP_AND
%left <token> OP_IMPLIES OP_EQUIV
/* LTL operators. */