Method find

core/string/ustring.cpp:3067–3109

}

int String::find(const String &p_str, int p_from) const {
	if (p_from < 0) {
		return -1;
	}

	const int src_len = p_str.length();

	const int len = length();

	if (src_len == 0 || len == 0) {
		return -1; // won't find anything!
	}

	if (src_len == 1) {
		return find_char(p_str[0], p_from); // Optimize with single-char find.
	}

	const char32_t *src = get_data();
	const char32_t *str = p_str.get_data();

	for (int i = p_from; i <= (len - src_len); i++) {
		bool found = true;
		for (int j = 0; j < src_len; j++) {
			int read_pos = i + j;

			if (read_pos >= len) {
				ERR_PRINT("read_pos>=len");
				return -1;
			}

			if (src[read_pos] != str[j]) {
				found = false;
				break;
			}
		}

		if (found) {
			return i;
		}
	}

	return -1;
}

int String::find(const char *p_str, int p_from) const {
	if (p_from < 0 || !p_str) {