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grammar t051treeRewriteASTy;
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options {
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language=JavaScript;
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output=AST;
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}
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a : 'boo' ID INT -> 'boo' ^(ID INT) ;
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ID : 'a'..'z'+ ;
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INT : '0'..'9'+;
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WS : (' '|'\n') {$channel=HIDDEN;} ;
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