OPEN_BRACKET
if (s < end_s && *s == OPEN_BRACKET) {
} else if (*s1 == OPEN_BRACKET)
if (s < attrib_end && *s == OPEN_BRACKET) {
*s == COLON_CHAR || *s == OPEN_BRACKET ||
} else if (*s == OPEN_BRACKET) {
case OPEN_BRACKET: