new

static VALUE
ripper_initialize(int argc, VALUE *argv, VALUE self)
{
    struct parser_params *parser;
    VALUE src, fname, lineno;

    TypedData_Get_Struct(self, struct parser_params, &parser_data_type, parser);
    rb_scan_args(argc, argv, "12", &src, &fname, &lineno);
    if (RB_TYPE_P(src, T_FILE)) {
        lex_gets = ripper_lex_io_get;
    }
    else if (rb_respond_to(src, id_gets)) {
        lex_gets = ripper_lex_get_generic;
    }
    else {
        StringValue(src);
        lex_gets = lex_get_str;
    }
    lex_input = src;
    parser->eofp = 0;
    if (NIL_P(fname)) {
        fname = STR_NEW2("(ripper)");
        OBJ_FREEZE(fname);
    }
    else {
        StringValueCStr(fname);
        fname = rb_str_new_frozen(fname);
    }
    parser_initialize(parser);

    ruby_sourcefile_string = fname;
    ruby_sourcefile = RSTRING_PTR(fname);
    ruby_sourceline = NIL_P(lineno) ? 0 : NUM2INT(lineno) - 1;

    return Qnil;
}