Allow boolean atoms to be negated in rational expressions.

* src/ltlparse/ltlparse.yy (rationalexp): Recognize "OP_NOT booleanatom". * src/ltlvisit/consterm.cc, src/tgbaalgos/ltl2tgba_fm.cc: Adjust. * src/tgbatest/ltl2tgba.test: Add one test.
2010-03-10 14:38:17 +01:00 · 2010-03-10 14:38:17 +01:00 · 4aa82ec762
commit 4aa82ec762
parent bbb645e1fc
4 changed files with 18 additions and 6 deletions
--- a/src/ltlparse/ltlparse.yy
+++ b/src/ltlparse/ltlparse.yy
@ -234,6 +234,8 @@ booleanatom: ATOMIC_PROP
 	      { $$ = constant::false_instance(); }

 rationalexp: booleanatom
+            | OP_NOT booleanatom
+	      { $$ = unop::instance(unop::Not, $2); }
            | bracedrationalexp
 	    | CONST_EMPTYWORD
 	      { $$ = constant::empty_word_instance(); }