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* src/ltlparse/ltlscan.ll: Recognize && and ||.

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* src/ltltest/parse.test, src/ltltest/parseerr.test,
src/ltltest/equals.test: Use these operators..
This commit is contained in:
Alexandre Duret-Lutz 2003-04-18 09:12:26 +00:00
parent 83cb6f3a39
commit d9cd704bcb
5 changed files with 31 additions and 20 deletions
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35
src/ltlparse/ltlscan.ll
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@ -34,29 +34,30 @@ flex_set_buffer(const char *buf)
yylloc->step ();
%}
"(" return PAR_OPEN;
")" return PAR_CLOSE;
"(" return PAR_OPEN;
")" return PAR_CLOSE;
"!" return OP_NOT;
"|"|"+" return OP_OR;
"&"|"."|"*" return OP_AND;
"^" return OP_XOR;
"=>"|"->" return OP_IMPLIES;
"<=>"|"<->" return OP_EQUIV;
"!" return OP_NOT;
/* & and | come from Spin. && and || from LTL2BA. */
"||"|"|"|"+" return OP_OR;
"&&"|"&"|"."|"*" return OP_AND;
"^" return OP_XOR;
"=>"|"->" return OP_IMPLIES;
"<=>"|"<->" return OP_EQUIV;
/* <>, [], and () are used in Spin. */
"F"|"<>" return OP_F;
"G"|"[]" return OP_G;
"U" return OP_U;
"R"|"V" return OP_R;
"X"|"()" return OP_X;
"F"|"<>" return OP_F;
"G"|"[]" return OP_G;
"U" return OP_U;
"R"|"V" return OP_R;
"X"|"()" return OP_X;
"1"|"true" return CONST_TRUE;
"0"|"false" return CONST_FALSE;
"1"|"true" return CONST_TRUE;
"0"|"false" return CONST_FALSE;
[ \t\n]+ yylloc->step (); /* discard whitespace */
[ \t\n]+ /* discard whitespace */ yylloc->step ();
/* An Atomic propisition cannot start with the letter
/* An Atomic proposition cannot start with the letter
used by a unary operator (F,G,X), unless this
letter is followed by a digit in which case we assume
it's an ATOMIC_PROP (even though F0 could be seen as Ffalse). */