environment print_cmd(parser & p) {
if (p.curr() == scanner::token_kind::String) {
p.regular_stream() << p.get_str_val() << endl;
p.next();
} else if (p.curr_is_token_or_id(g_raw)) {
p.next();
expr e = p.parse_expr();
p.regular_stream() << e << endl;
} else if (p.curr_is_token_or_id(g_options)) {
p.next();
p.regular_stream() << p.ios().get_options() << endl;
} else {
throw parser_error("invalid print command", p.pos());
}
return p.env();
}
