ObjFW  Diff

Differences From Artifact [12e7c5b831]:

To Artifact [c5cbe08edf]:

  • File src/OFXMLParser.m — part of check-in [3d16a30f41] at 2013-06-22 12:12:36 on branch trunk — Rework exceptions.

    This mostly removes the argument for the class in which the exception
    occurred. As backtraces were recently added for all platforms, the
    passed class does not give any extra information on where the exception
    occurred anymore.

    This also removes a few other arguments which were not too helpful. In
    the past, the idea was to pass as many arguments as possible so that it
    is easier to find the origin of the exception. However, as backtraces
    are a much better way to find the origin, those are not useful anymore
    and just make the exception more cumbersome to use. The rule is now to
    only pass arguments that might help in recovering from the exception or
    provide information that is otherwise not easily accessible. (user: js, size: 23947) [annotate] [blame] [check-ins using]


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	if (attributePrefix == nil)
		return;

	attributeNS = namespace_for_prefix(attributePrefix, namespaces);

	if ((attributePrefix != nil && attributeNS == nil))
		@throw [OFUnboundPrefixException
		    exceptionWithClass: [self class]
				prefix: attributePrefix
				parser: self];
		    exceptionWithPrefix: attributePrefix
				 parser: self];

	[attribute->_namespace release];
	attribute->_namespace = [attributeNS retain];
}

@implementation OFXMLParser
+ (void)initialize
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	if (_data[_i] != "\xEF\xBB\xBF"[_level]) {
		if (_level == 0) {
			_state = OF_XMLPARSER_OUTSIDE_TAG;
			_i--;
			return;
		}

		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];
	}

	if (_level++ == 2)
		_state = OF_XMLPARSER_OUTSIDE_TAG;

	_last = _i + 1;
}

/* Not in a tag */
- (void)OF_outsideTagState
{
	size_t length;

	if ((_finishedParsing || [_previous count] < 1) && _data[_i] != ' ' &&
	    _data[_i] != '\t' && _data[_i] != '\n' && _data[_i] != '\r' &&
	    _data[_i] != '<')
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	if (_data[_i] != '<')
		return;

	if ((length = _i - _last) > 0)
		buffer_append(_buffer, _data + _last, _encoding, length);

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	_state = OF_XMLPARSER_TAG_OPENED;
}

/* Tag was just opened */
- (void)OF_tagOpenedState
{
	if (_finishedParsing && _data[_i] != '!' && _data[_i] != '?')
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	switch (_data[_i]) {
	case '?':
		_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];
			    exceptionWithParser: self];

		_state = OF_XMLPARSER_IN_TAG_NAME;
		_acceptProlog = false;
		_i--;
		break;
	}
}
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		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]
						parser: self];
				    exceptionWithParser: self];

		if ([_delegate respondsToSelector:
		    @selector(parser:foundProcessingInstructions:)])
			[_delegate		 parser: self
			    foundProcessingInstructions: PI];

		objc_autoreleasePoolPop(pool);
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	if (_data[_i] == '>' || _data[_i] == '/') {
		OFString *namespace;

		namespace = namespace_for_prefix(_prefix, _namespaces);

		if (_prefix != nil && namespace == nil)
			@throw [OFUnboundPrefixException
			    exceptionWithClass: [self class]
					prefix: _prefix
					parser: self];
			    exceptionWithPrefix: _prefix
					 parser: self];

		if ([_delegate respondsToSelector: @selector(parser:
		    didStartElement:prefix:namespace:attributes:)])
			[_delegate parser: self
			  didStartElement: _name
				   prefix: _prefix
				namespace: namespace
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				length: tmp - bufferCString];
	} else {
		_name = [bufferString copy];
		_prefix = nil;
	}

	if (![[_previous lastObject] isEqual: bufferString])
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	[_previous removeLastObject];

	[_buffer removeAllItems];

	namespace = namespace_for_prefix(_prefix, _namespaces);
	if (_prefix != nil && namespace == nil)
		@throw [OFUnboundPrefixException
		@throw [OFUnboundPrefixException exceptionWithPrefix: _prefix
		    exceptionWithClass: [self class]
				prefix: _prefix
				parser: self];
							      parser: self];

	if ([_delegate respondsToSelector:
	    @selector(parser:didEndElement:prefix:namespace:)])
		[_delegate parser: self
		    didEndElement: _name
			   prefix: _prefix
			namespace: namespace];
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	attributesObjects = [_attributes objects];
	attributesCount = [_attributes count];

	namespace = namespace_for_prefix(_prefix, _namespaces);

	if (_prefix != nil && namespace == nil)
		@throw [OFUnboundPrefixException
		@throw [OFUnboundPrefixException exceptionWithPrefix: _prefix
		    exceptionWithClass: [self class]
				prefix: _prefix
				parser: self];
							      parser: self];

	for (j = 0; j < attributesCount; j++)
		resolve_attribute_namespace(attributesObjects[j], _namespaces,
		    self);

	pool = objc_autoreleasePoolPush();

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	_last = _i + 1;

	if (_data[_i] == ' ' || _data[_i] == '\t' || _data[_i] == '\n' ||
	    _data[_i] == '\r')
		return;

	if (_data[_i] != '\'' && _data[_i] != '"')
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	_delimiter = _data[_i];
	_state = OF_XMLPARSER_IN_ATTR_VALUE;
}

/* Looking for attribute value */
- (void)OF_inAttributeValueState
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/* Expecting closing '>' */
- (void)OF_expectCloseState
{
	if (_data[_i] == '>') {
		_last = _i + 1;
		_state = OF_XMLPARSER_OUTSIDE_TAG;
	} else
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];
}

/* Expecting closing '>' or space */
- (void)OF_expectSpaceOrCloseState
{
	if (_data[_i] == '>') {
		_last = _i + 1;
		_state = OF_XMLPARSER_OUTSIDE_TAG;
	} else if (_data[_i] != ' ' && _data[_i] != '\t' &&
	    _data[_i] != '\n' && _data[_i] != '\r')
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];
}

/* In <! */
- (void)OF_inExclamationMarkState
{
	if (_finishedParsing && _data[_i] != '-')
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	if (_data[_i] == '-')
		_state = OF_XMLPARSER_IN_COMMENT_OPENING;
	else if (_data[_i] == '[') {
		_state = OF_XMLPARSER_IN_CDATA_OPENING;
		_level = 0;
	} else if (_data[_i] == 'D') {
		_state = OF_XMLPARSER_IN_DOCTYPE;
		_level = 0;
	} else
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	_last = _i + 1;
}

/* CDATA */
- (void)OF_inCDATAOpeningState
{
	if (_data[_i] != "CDATA["[_level])
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	if (++_level == 6) {
		_state = OF_XMLPARSER_IN_CDATA_1;
		_level = 0;
	}

	_last = _i + 1;
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	_state = OF_XMLPARSER_OUTSIDE_TAG;
}

/* Comment */
- (void)OF_inCommentOpeningState
{
	if (_data[_i] != '-')
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	_last = _i + 1;
	_state = OF_XMLPARSER_IN_COMMENT_1;
	_level = 0;
}

- (void)OF_inCommentState1
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- (void)OF_inCommentState2
{
	void *pool;
	OFString *comment;

	if (_data[_i] != '>')
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	pool = objc_autoreleasePoolPush();

	buffer_append(_buffer, _data + _last, _encoding, _i - _last);
	comment = transform_string(_buffer, 2, false, nil);

	if ([_delegate respondsToSelector: @selector(parser:foundComment:)])
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/* In <!DOCTYPE ...> */
- (void)OF_inDOCTYPEState
{
	if ((_level < 6 && _data[_i] != "OCTYPE"[_level]) ||
	    (_level == 6 && _data[_i] != ' ' && _data[_i] != '\t' &&
	    _data[_i] != '\n' && _data[_i] != '\r'))
		@throw [OFMalformedXMLException exceptionWithClass: [self class]
		@throw [OFMalformedXMLException exceptionWithParser: self];
							    parser: self];

	_level++;

	if (_level > 6 && _data[_i] == '>')
		_state = OF_XMLPARSER_OUTSIDE_TAG;

	_last = _i + 1;