ObjFW  Diff

	OFString *ret;

	string = self.UTF8String;
	length = self.UTF8StringLength;

	j = 0;
	retLength = length;

	/*
	 * We can't use allocMemoryWithSize: here as it might be a @"" literal
	 */
	if ((retCString = malloc(retLength)) == NULL)
		@throw [OFOutOfMemoryException
		    exceptionWithRequestedSize: retLength];

	for (size_t i = 0; i < length; i++) {
		switch (string[i]) {
		case '<':
			append = "&lt;";
			appendLen = 4;
			break;

			break;
		default:
			append = NULL;
			appendLen = 0;
		}

		if (append != NULL) {
			char *newRetCString;

			if ((newRetCString = realloc(retCString,
			    retLength + appendLen)) == NULL) {

				free(retCString);
				@throw [OFOutOfMemoryException
				     exceptionWithRequestedSize: retLength +
								 appendLen];
			}
			retCString = newRetCString;
			retLength += appendLen - 1;

			memcpy(retCString + j, append, appendLen);
			j += appendLen;
		} else
			retCString[j++] = string[i];
	}