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Fix the associativity of ->, <->, U, R, W, and M wrt the PSL standard.

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* src/ltlparse/ltlparse.yy: Make all the above operators
right-associative.  Also let `:' have precedence over `;'.
* src/ltltest/reduccmp.test: Adjust for the `:' precedence.
* doc/tl/tl.tex, NEWS: Document this.
This commit is contained in:
Alexandre Duret-Lutz 2012-04-28 16:13:24 +02:00
parent 807dcefba4
commit ce437cd499
4 changed files with 43 additions and 45 deletions
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11
src/ltlparse/ltlparse.yy
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@ -111,19 +111,20 @@ using namespace spot::ltl;
/* Priorities. */
/* Low priority regex operator. */
%left OP_UCONCAT OP_ECONCAT OP_UCONCAT_NONO OP_ECONCAT_NONO
/* Low priority SERE-LTL binding operator. */
%right OP_UCONCAT OP_ECONCAT OP_UCONCAT_NONO OP_ECONCAT_NONO
%left OP_CONCAT OP_FUSION
%left OP_CONCAT
%left OP_FUSION
/* Logical operators. */
%left OP_IMPLIES OP_EQUIV
%right OP_IMPLIES OP_EQUIV
%left OP_OR
%left OP_XOR
%left OP_AND OP_SHORT_AND
/* LTL operators. */
%left OP_U OP_R OP_M OP_W
%right OP_U OP_R OP_M OP_W
%nonassoc OP_F OP_G
%nonassoc OP_X