antlr - Porting ANTLR3 to ANTLR4 symbol to token replacement -

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what appropriate translation antlr3 antlr4 syntax?

tokens {          and,          or        }

with antlr3 used following replace & token and

and_or : '&' -> ,         | '|' -> or        ;

how declare in antlr4?

there no rewrite rules in antlr4, closest this:

and_or  : ,   | or  ;  , : '&'; or : '|';

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