ObjFW  Check-in [9d93300b4e]

 * before and optionally get the cache before clearing it!
 *
 * \return The line that was read, autoreleased, or nil if the end of the
 *	   stream has been reached.
 */
- (OFString*)readLine;

/**
 * Read with the specified encoding until a newline, \\0 or end of stream
 * occurs.
 *
 * If you want to use readNBytes afterwards again, you have to clear the cache
 * before and optionally get the cache before clearing it!
 *
 * \return The line that was read, autoreleased, or nil if the end of the
 *	   stream has been reached.
 */
- (OFString*)readLineWithEncoding: (enum of_string_encoding)encoding;

/**
 * Writes from a buffer into the stream.
 *
 * \param buf The buffer from which the data is written to the stream
 * \param size The size of the data that should be written
 * \return The number of bytes written
 */

{
	@throw [OFNotImplementedException newWithClass: isa
					      selector: _cmd];
}

- (OFString*)readLine
{
	return [self readLineWithEncoding: OF_STRING_ENCODING_UTF_8];
}

- (OFString*)readLineWithEncoding: (enum of_string_encoding)encoding
{
	size_t i, len;
	char *ret_c, *tmp, *tmp2;
	OFString *ret;

	/* Look if there's a line or \0 in our cache */
	if (cache != NULL) {
		for (i = 0; i < cache_len; i++) {
			if (OF_UNLIKELY(cache[i] == '\n' ||
			    cache[i] == '\0')) {
				ret = [OFString stringWithCString: cache
							 encoding: encoding
							   length: i];

				tmp = [self allocMemoryWithSize: cache_len -
								 i - 1];
				memcpy(tmp, cache + i + 1, cache_len - i - 1);

				[self freeMemory: cache];

		if ([self atEndOfStream]) {
			[self freeMemory: tmp];

			if (cache == NULL)
				return nil;

			ret = [OFString stringWithCString: cache
						 encoding: encoding
						   length: cache_len];

			[self freeMemory: cache];
			cache = NULL;
			cache_len = 0;

			return ret;

					cache = NULL;
					cache_len = 0;
				}
				[self freeMemory: tmp];

				@try {
					ret = [OFString
					    stringWithCString: ret_c
						     encoding: encoding];
				} @finally {
					[self freeMemory: ret_c];
				}
				return ret;
			}
		}