lex_fail
return lex_fail(&lex, "expected alphanumeric name or '*'"
return lex_fail(&lex, "expected +/- or alphanumeric name or '*'");
return lex_fail(&lex, "expected ':' after category name");
return lex_fail(&lex, "expected alphanumeric category name or '*'");
return lex_fail(&lex, "expected alphanumeric event name or '*'");