ObjFW  Diff

		[buffer addItems: [tmp UTF8String]
			   count: [tmp UTF8StringLength]];
		objc_autoreleasePoolPop(pool);
	}
}

static OFString*
transform_string(OFDataArray *buffer, size_t cut, bool unescape,
    id <OFStringXMLUnescapingDelegate> delegate)
{
	char *items;
	size_t i, length;
	bool hasEntities = false;
	OFString *ret;

	items = [buffer items];
	length = [buffer count] - cut;

	for (i = 0; i < length; i++) {
		if (items[i] == '\r') {
			if (i + 1 < length && items[i + 1] == '\n') {
				[buffer removeItemAtIndex: i];
				items = [buffer items];

				i--;
				length--;
			} else
				items[i] = '\n';
		} else if (items[i] == '&')
			hasEntities = true;
	}

	ret = [OFString stringWithUTF8String: items
				      length: length];

	if (unescape && hasEntities)
		return [ret stringByXMLUnescapingWithDelegate: delegate];

		pool = objc_autoreleasePoolPush();
		dict = [OFMutableDictionary dictionaryWithKeysAndObjects:
		    @"xml", @"http://www.w3.org/XML/1998/namespace",
		    @"xmlns", @"http://www.w3.org/2000/xmlns/", nil];
		[_namespaces addObject: dict];

		_acceptProlog = true;
		_lineNumber = 1;
		_encoding = OF_STRING_ENCODING_UTF_8;
		_depthLimit = 32;

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];

		return;

	if ((length = *i - *last) > 0)
		buffer_append(_buffer, buffer + *last, _encoding, length);

	if ([_buffer count] > 0) {
		void *pool = objc_autoreleasePoolPush();
		OFString *characters = transform_string(_buffer, 0, true, self);

		if ([_delegate respondsToSelector:
		    @selector(parser:foundCharacters:)])
			[_delegate parser: self
			  foundCharacters: characters];

		objc_autoreleasePoolPop(pool);

		*last = *i + 1;
		_state = OF_XMLPARSER_IN_PROCESSING_INSTRUCTIONS;
		_level = 0;
		break;
	case '/':
		*last = *i + 1;
		_state = OF_XMLPARSER_IN_CLOSE_TAG_NAME;
		_acceptProlog = false;
		break;
	case '!':
		*last = *i + 1;
		_state = OF_XMLPARSER_IN_EXCLAMATIONMARK;
		_acceptProlog = false;
		break;
	default:
		if (_depthLimit > 0 && [_previous count] >= _depthLimit)
			@throw [OFMalformedXMLException
			    exceptionWithClass: [self class]
					parser: self];

		_state = OF_XMLPARSER_IN_TAG_NAME;
		_acceptProlog = false;
		(*i)--;
		break;
	}
}

/* <?xml […]?> */
- (bool)OF_parseXMLProcessingInstructions: (OFString*)pi
{
	const char *cString;
	size_t i, last, length;
	int PIState = 0;
	OFString *attribute = nil;
	OFMutableString *value = nil;
	char piDelimiter = 0;

	if (!_acceptProlog)
		return false;

	_acceptProlog = false;

	pi = [pi substringWithRange: of_range(3, [pi length] - 3)];
	pi = [pi stringByDeletingEnclosingWhitespaces];

	cString = [pi UTF8String];
	length = [pi UTF8StringLength];

					  length: i - last];
			last = i + 1;
			PIState = 2;

			break;
		case 2:
			if (cString[i] != '\'' && cString[i] != '"')
				return false;

			piDelimiter = cString[i];
			last = i + 1;
			PIState = 3;

			break;
		case 3:
			if (cString[i] != piDelimiter)
				continue;

			value = [OFMutableString
			    stringWithUTF8String: cString + last
					  length: i - last];

			if ([attribute isEqual: @"version"])
				if (![value hasPrefix: @"1."])
					return false;

			if ([attribute isEqual: @"encoding"]) {
				[value lowercase];

				if ([value isEqual: @"utf-8"])
					_encoding = OF_STRING_ENCODING_UTF_8;
				else if ([value isEqual: @"iso-8859-1"])
					_encoding =
					    OF_STRING_ENCODING_ISO_8859_1;
				else if ([value isEqual: @"iso-8859-15"])
					_encoding =
					    OF_STRING_ENCODING_ISO_8859_15;
				else if ([value isEqual: @"windows-1252"])
					_encoding =
					    OF_STRING_ENCODING_WINDOWS_1252;
				else
					return false;
			}

			last = i + 1;
			PIState = 0;

			break;
		}
	}

	if (PIState != 0)
		return false;

	return true;
}

/* Inside processing instructions */
- (void)OF_parseInProcessingInstructionsWithBuffer: (const char*)buffer
						 i: (size_t*)i
					      last: (size_t*)last
{
	if (buffer[*i] == '?')
		_level = 1;
	else if (_level == 1 && buffer[*i] == '>') {
		void *pool = objc_autoreleasePoolPush();
		OFString *PI;

		buffer_append(_buffer, buffer + *last, _encoding, *i - *last);
		PI = transform_string(_buffer, 1, false, nil);

		if ([PI isEqual: @"xml"] || [PI hasPrefix: @"xml "] ||
		    [PI hasPrefix: @"xml\t"] || [PI hasPrefix: @"xml\r"] ||
		    [PI hasPrefix: @"xml\n"])
			if (![self OF_parseXMLProcessingInstructions: PI])
				@throw [OFMalformedXMLException
				    exceptionWithClass: [self class]

			    @selector(parser:didEndElement:prefix:namespace:)])
				[_delegate parser: self
				    didEndElement: _name
					   prefix: _prefix
					namespace: namespace];

			if ([_previous count] == 0)
				_finishedParsing = true;
		} else
			[_previous addObject: bufferString];

		[_name release];
		[_prefix release];
		_name = _prefix = nil;

	*last = *i + 1;
	_state = (buffer[*i] == '>'
	    ? OF_XMLPARSER_OUTSIDE_TAG
	    : OF_XMLPARSER_EXPECT_SPACE_OR_CLOSE);

	if ([_previous count] == 0)
		_finishedParsing = true;
}

/* Inside a tag, name found */
- (void)OF_parseInTagWithBuffer: (const char*)buffer
			      i: (size_t*)i
			   last: (size_t*)last
{

		    @selector(parser:didEndElement:prefix:namespace:)])
			[_delegate parser: self
			    didEndElement: _name
				   prefix: _prefix
				namespace: namespace];

		if ([_previous count] == 0)
			_finishedParsing = true;

		[_namespaces removeLastObject];
	} else if (_prefix != nil) {
		OFString *str = [OFString stringWithFormat: @"%@:%@",
							    _prefix, _name];
		[_previous addObject: str];
	} else

	if (buffer[*i] != _delimiter)
		return;

	if ((length = *i - *last) > 0)
		buffer_append(_buffer, buffer + *last, _encoding, length);

	pool = objc_autoreleasePoolPush();
	attributeValue = transform_string(_buffer, 0, true, self);

	if (_attributePrefix == nil && [_attributeName isEqual: @"xmlns"])
		[[_namespaces lastObject] setObject: attributeValue
					     forKey: @""];
	if ([_attributePrefix isEqual: @"xmlns"])
		[[_namespaces lastObject] setObject: attributeValue
					     forKey: _attributeName];

		return;
	}

	pool = objc_autoreleasePoolPush();

	buffer_append(_buffer, buffer + *last, _encoding, *i - *last);
	CDATA = transform_string(_buffer, 2, false, nil);

	if ([_delegate respondsToSelector: @selector(parser:foundCDATA:)])
		[_delegate parser: self
		       foundCDATA: CDATA];

	objc_autoreleasePoolPop(pool);

	if (buffer[*i] != '>')
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
							    parser: self];

	pool = objc_autoreleasePoolPush();

	buffer_append(_buffer, buffer + *last, _encoding, *i - *last);
	comment = transform_string(_buffer, 2, false, nil);

	if ([_delegate respondsToSelector: @selector(parser:foundComment:)])
		[_delegate parser: self
		     foundComment: comment];

	objc_autoreleasePoolPop(pool);

}

- (size_t)lineNumber
{
	return _lineNumber;
}

- (bool)finishedParsing
{
	return _finishedParsing;
}

-	   (OFString*)string: (OFString*)string
  containsUnknownEntityNamed: (OFString*)entity
{