Hi,
I have a problem with following grammar:
imperative_statement
: imperative_compute_statement
;
imperative_statement_list
: imperative_statement+
;
imperative_compute_statement
: COMPUTE^ Identifier+ EQUAL Identifier END_COMPUTE?
;
conditional_compute_statement
: COMPUTE^ Identifier+ EQUAL Identifier
(ON? SIZE ERROR imperative_statement_list)?
END_COMPUTE?
;
COMPUTE: 'COMPUTE';
NOT : 'NOT';
ON : 'ON';
SIZE : 'SIZE';
EQUAL : 'EQUAL';
ERROR : 'ERROR';
END_COMPUTE : 'END-COMPUTE';
Identifier :
Letter (Letter | Digit)*;
fragment
Letter :
'a'..'z' |
'A'..'Z';
fragment
Digit :
'0'..'9';
ANTLR tells me that the rule 'imperative_compute_statement' has more
than one alternative to match the optional 'END_COMPUTE'. Can anybody
give me a hint on how to rewrite this grammar so that the warning no
longer appears?
Any help appreciated.
Regards,
Thomas
--
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79100 Freiburg, Germany
Phone: +49 761 400 73 0
mailto:[email protected]
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