tkobayas commented on code in PR #5975:
URL:
https://github.com/apache/incubator-kie-drools/pull/5975#discussion_r1615774192
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drools-drl/drools-drl-parser/src/main/antlr4/org/drools/drl/parser/antlr4/DRLParser.g4:
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@@ -340,7 +340,8 @@ fromAccumulate := ACCUMULATE LEFT_PAREN lhsAnd
(COMMA|SEMICOLON)
) RIGHT_PAREN
*/
fromAccumulate : (DRL_ACCUMULATE|DRL_ACC) LPAREN lhsAndDef (COMMA|SEMI)
- ( DRL_INIT LPAREN initBlockStatements=chunk? RPAREN COMMA?
DRL_ACTION LPAREN actionBlockStatements=chunk? RPAREN COMMA? ( DRL_REVERSE
LPAREN reverseBlockStatements=chunk? RPAREN COMMA?)? DRL_RESULT LPAREN
resultBlockStatements=chunk RPAREN
+ ( DRL_INIT LPAREN initBlockStatements=chunk? RPAREN COMMA?
DRL_ACTION LPAREN actionBlockStatements=chunk? RPAREN COMMA? DRL_REVERSE LPAREN
reverseBlockStatements=chunk? RPAREN COMMA? DRL_RESULT LPAREN
resultBlockStatements=chunk RPAREN
+ | DRL_INIT LPAREN initBlockStatements=chunk? RPAREN COMMA?
DRL_ACTION LPAREN actionBlockStatements=chunk? RPAREN COMMA? DRL_RESULT LPAREN
resultBlockStatements=chunk RPAREN
Review Comment:
This is not an elegant change. But in the previous rule, `chunk?` for the
DRL_ACTION greedily eats DRL_RESULT `result`. So I changed to this one, which
makes DRL_RESULT higher priority. If there is a better way to write, please let
me know.
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