shift ESCAPED_SYMBOL, shift CHAR, shift LBRACE,
shift WHEN, shift ATTACHED_HASH,
shift SELECT, shift SELECT_FIRST, shift SELECT_DISTINCT,
- shift TRANSFORMATION, shift EQ
+ shift TRANSFORMATION, shift EQ, shift CHR_SELECT
;
faexp
| (DO | MDO) statements # Do
| (SELECT | SELECT_FIRST | SELECT_DISTINCT)
exp WHERE queryBlock # Select
+ | CHR_SELECT
+ exp WHERE verboseChrQuery # CHRSelect
| ENFORCE queryBlock # Enforce
//| WHEN queryBlock SEMICOLON exp # When
| var # Var
| exp FOLLOWS queryBlock # RuleStatement
| chrQuery IMPLIES chrQuery # CHRStatement
| WHEN verboseChrQuery THEN_AFTER_WHEN verboseChrQuery # VerboseCHRStatement
- | CONSTRAINT ID atype* # ConstraintStatement
+ | CONSTRAINT constructor # ConstraintStatement
| INCLUDE ID aexp # LocalInclude
;
+verboseChrQuery
+ = LBRACE chrQuery (SEMICOLON chrQuery)* RBRACE # VerboseCHRConjunction
+ ;
+
+
chrQuery
- = listQualifier (COMMA listQualifier)* # CHRQuery
+ = chrQueryPart (COMMA chrQueryPart)* # CHRConjunction
;
-verboseChrQuery
- = LBRACE listQualifier (SEMICOLON listQualifier)* RBRACE # VerboseCHRQuery
+chrQueryPart
+ = exp # CHRAtom
+ | exp EQUALS exp # CHREquals
+ | exp BINDS exp # CHRBinds
;
listQualifier