/*
	Copyright 2022-2023 Gabriel Jensen.
	This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
	If a copy of the MPL was not distributed with this file, You can obtain one at <https://mozilla.org/MPL/2.0>.
*/

#include <zp/str.h>

zp_siz zp_utf8enclen(zp_c02 const * str) {
	zp_siz len = 0x0u;

	for (;;++str) {
		zp_c02 const chr = *str;

		if (chr >= 0x10000u) {
			len += 0x4u;
			continue;
		}
		
		if (chr >= 0x800u) {
			len += 0x3u;
			continue;
		}
		
		if (chr >= 0x80u) {
			len += 0x2u;
			continue;
		}

		zp_ulik (chr == 0x0u) {break;}

		++len;
	}

	return len;
}