ObjFW  Check-in [9d70e660ea]

 * read.
 *
 * Therefore, instead of just using the UTF-8 codepage, this captures all reads
 * and writes to of_std{in,out,err} on the lowlevel, interprets the buffer as
 * UTF-8 and converts to / from UTF-16 to use ReadConsoleW() / WriteConsoleW().
 * Doing so is safe, as the console only supports text anyway and thus it does
 * not matter if binary gets garbled by the conversion (e.g. because invalid
 * UTF-8 gets converted to U+FFFE).
 * UTF-8 gets converted to U+FFFD).
 *
 * In order to not do this when redirecting input / output to a file (as the
 * file would then be read / written in the wrong encoding and break reading /
 * writing binary), it checks that the handle is indeed a console.
 */

#define OF_STDIO_STREAM_WIN32_CONSOLE_M

		UTF8Len = of_string_utf8_decode(
		    _incompleteUTF8Surrogate, _incompleteUTF8SurrogateLen, &c);

		if (UTF8Len <= 0 || c > 0x10FFFF) {
			assert(UTF8Len == 0 || UTF8Len < -4);

			UTF16[0] = 0xFFFE;
			UTF16[0] = 0xFFFD;
			UTF16Len = 1;
		} else {
			if (c > 0xFFFF) {
				c -= 0x10000;
				UTF16[0] = 0xD800 | (c >> 10);
				UTF16[1] = 0xDC00 | (c & 0x3FF);
				UTF16Len = 2;

				    length - i);
				_incompleteUTF8SurrogateLen = length - i;

				break;
			}

			if (UTF8Len <= 0 || c > 0x10FFFF) {
				tmp[j++] = 0xFFFE;
				tmp[j++] = 0xFFFD;
				i++;
				continue;
			}

			if (c > 0xFFFF) {
				c -= 0x10000;
				tmp[j++] = 0xD800 | (c >> 10);