val is_module_name : Approx_tokens.token -> boolval is_ident_name : Approx_tokens.token -> boolval transform_let : Approx_tokens.token array -> Approx_tokens.token arrayval transform_fun : Approx_tokens.token array -> Approx_tokens.token arrayval transform_match : Approx_tokens.token array -> Approx_tokens.token arrayval transform_cons : Approx_tokens.token array -> Approx_tokens.token arrayval transform_type : Approx_tokens.token array -> Approx_tokens.token arrayval transform : (Approx_tokens.token * 'a) list -> (Approx_tokens.token * 'a) list