15 lines
294 B
Java
15 lines
294 B
Java
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grammar aplusb ;
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options {
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language = Java;
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}
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aplusb : (WS* e1=Num WS+ e2=Num NEWLINE {System.out.println($e1.text + " + " + $e2.text + " = " + (Integer.parseInt($e1.text) + Integer.parseInt($e2.text)));})+
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;
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Num : '-'?('0'..'9')+
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;
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WS : (' ' | '\t')
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;
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NEWLINE : WS* '\r'? '\n'
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;
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