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55 lines
832 B
55 lines
832 B
4 months ago
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grammar t046rewrite;
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options {
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language=Python;
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}
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program
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@init {
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start = self.input.LT(1)
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}
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: method+
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{
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self.input.insertBefore(start,"public class Wrapper {\n")
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self.input.insertAfter($method.stop, "\n}\n")
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}
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;
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method
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: m='method' ID '(' ')' body
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{self.input.replace($m, "public void");}
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;
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body
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scope {
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decls
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}
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@init {
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$body::decls = set()
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}
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: lcurly='{' stat* '}'
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{
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for it in $body::decls:
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self.input.insertAfter($lcurly, "\nint "+it+";")
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}
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;
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stat: ID '=' expr ';' {$body::decls.add($ID.text);}
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;
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expr: mul ('+' mul)*
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;
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mul : atom ('*' atom)*
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;
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atom: ID
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| INT
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;
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ID : ('a'..'z'|'A'..'Z')+ ;
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INT : ('0'..'9')+ ;
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WS : (' '|'\t'|'\n')+ {$channel=HIDDEN;}
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;
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