ObjFW  Check-in [fbcbf30be7]

	[_stack release];

	[super dealloc];
}

-			  (void)parser: (OFXMLParser *)parser
  foundProcessingInstructionWithTarget: (OFString *)target
				  text: (OFString *)text
{
	OFXMLProcessingInstruction *node = [OFXMLProcessingInstruction
	    processingInstructionWithTarget: target
				       text: text];
	OFXMLElement *parent = _stack.lastObject;

	if (parent != nil)
		[parent addChild: node];
	else if ([_delegate respondsToSelector:
	    @selector(elementBuilder:didBuildParentlessNode:)])
		[_delegate elementBuilder: self didBuildParentlessNode: node];

@optional
/**
 * @brief This callback is called when the XML parser found a processing
 *	  instruction.
 *
 * @param parser The parser which found a processing instruction
 * @param target The target of the processing instruction
 * @param text The text of the processing instruction
 */
-			  (void)parser: (OFXMLParser *)parser
  foundProcessingInstructionWithTarget: (OFString *)target
				  text: (OFString *)text;

/**
 * @brief This callback is called when the XML parser found the start of a new
 *	  tag.
 *
 * @param parser The parser which found a new tag
 * @param name The name of the tag which just started

static void
inProcessingInstructionState(OFXMLParser *self)
{
	if (self->_data[self->_i] == '?')
		self->_level = 1;
	else if (self->_level == 1 && self->_data[self->_i] == '>') {
		void *pool = objc_autoreleasePoolPush();
		OFString *PI, *target, *text = nil;
		OFCharacterSet *whitespaceCS;
		size_t pos;

		appendToBuffer(self->_buffer, self->_data + self->_last,
		    self->_encoding, self->_i - self->_last);
		PI = transformString(self, self->_buffer, 1, false);

		whitespaceCS = [OFCharacterSet
		    characterSetWithCharactersInString: @" \r\n\r"];
		pos = [PI indexOfCharacterFromSet: whitespaceCS];
		if (pos != OFNotFound) {
			target = [PI substringToIndex: pos];
			text = [[PI substringFromIndex: pos + 1]
			    stringByDeletingEnclosingWhitespaces];

			if (text.length == 0)
				text = nil;
		} else
			target = PI;

		if ([target caseInsensitiveCompare: @"xml"] == OFOrderedSame)
			if (!parseXMLProcessingInstruction(self, text))
				@throw [OFMalformedXMLException
				    exceptionWithParser: self];

		if ([self->_delegate respondsToSelector: @selector(
		    parser:foundProcessingInstructionWithTarget:text:)])
			[self->_delegate parser: self
			    foundProcessingInstructionWithTarget: target
							    text: text];

		objc_autoreleasePoolPop(pool);

		[self->_buffer removeAllItems];

		self->_last = self->_i + 1;
		self->_state = stateOutsideTag;

 * @class OFXMLProcessingInstruction \
 *	  OFXMLProcessingInstruction.h ObjFW/OFXMLProcessingInstruction.h
 *
 * @brief A class for representing an XML processing instruction.
 */
@interface OFXMLProcessingInstruction: OFXMLNode
{
	OFString *_target, *_Nullable _text;
	OF_RESERVE_IVARS(OFXMLProcessingInstruction, 4)
}

/**
 * @brief The target of the processing instruction.
 */
@property (readonly, nonatomic) OFString *target;

/**
 * @brief The text of the processing instruction.
 */
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) OFString *text;

/**
 * @brief Creates a new OFXMLProcessingInstruction with the specified target
 *	  and text.
 *
 * @param target The target for the processing instruction
 * @param text The text for the processing instruction
 * @return A new OFXMLProcessingInstruction
 */
+ (instancetype)processingInstructionWithTarget: (OFString *)target
					   text: (OFString *)text;

/**
 * @brief Initializes an already allocated OFXMLProcessingInstruction with the
 *	  specified target and text.
 *
 * @param target The target for the processing instruction
 * @param text The text for the processing instruction
 * @return An initialized OFXMLProcessingInstruction
 */
- (instancetype)initWithTarget: (OFString *)target
			  text: (OFString *)text OF_DESIGNATED_INITIALIZER;

- (instancetype)initWithSerialization: (OFXMLElement *)element;
@end

OF_ASSUME_NONNULL_END

#import "OFXMLAttribute.h"
#import "OFXMLElement.h"
#import "OFXMLNode+Private.h"

#import "OFInvalidArgumentException.h"

@implementation OFXMLProcessingInstruction
@synthesize target = _target, text = _text;

+ (instancetype)processingInstructionWithTarget: (OFString *)target
					   text: (OFString *)text
{
	return [[[self alloc] initWithTarget: target
					text: text] autorelease];
}

- (instancetype)initWithTarget: (OFString *)target
			  text: (OFString *)text
{
	self = [super of_init];

	@try {
		_target = [target copy];
		_text = [text copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

		targetAttr = [element attributeForName: @"target"
					     namespace: OFSerializationNS];
		if (targetAttr.stringValue.length == 0)
			@throw [OFInvalidArgumentException exception];

		self = [self initWithTarget: targetAttr.stringValue
				       text: element.stringValue];

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

	return self;
}

- (void)dealloc
{
	[_target release];
	[_text release];

	[super dealloc];
}

- (bool)isEqual: (id)object
{
	OFXMLProcessingInstruction *processingInstruction;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFXMLProcessingInstruction class]])
		return false;

	processingInstruction = object;

	if (![processingInstruction->_target isEqual: _target])
		return false;

	if (processingInstruction->_text != _text &&
	    ![processingInstruction->_text isEqual: _text])
		return false;

	return true;
}

- (unsigned long)hash
{
	unsigned long hash;

	OFHashInit(&hash);
	OFHashAddHash(&hash, _target.hash);
	OFHashAddHash(&hash, _text.hash);
	OFHashFinalize(&hash);

	return hash;
}

- (OFString *)stringValue
{
	return @"";
}

- (OFString *)XMLString
{
	if (_text.length > 0)
		return [OFString stringWithFormat: @"<?%@ %@?>",
						   _target, _text];
	else
		return [OFString stringWithFormat: @"<?%@?>", _target];
}

- (OFString *)XMLStringWithIndentation: (unsigned int)indentation
{
	return self.XMLString;
}

- (OFString *)XMLStringWithIndentation: (unsigned int)indentation
				 level: (unsigned int)level
{
	if (indentation > 0 && level > 0) {
		OFString *ret;
		char *whitespaces = OFAllocMemory((level * indentation) + 1, 1);
		memset(whitespaces, ' ', level * indentation);
		whitespaces[level * indentation] = 0;

		@try {
			if (_text.length > 0)
				ret = [OFString stringWithFormat:
				    @"%s<?%@ %@?>", whitespaces,
				    _target, _text];
			else
				ret = [OFString stringWithFormat:
				    @"%s<?%@?>", whitespaces, _target];
		} @finally {
			OFFreeMemory(whitespaces);
		}

	return self.XMLString;
}

- (OFXMLElement *)XMLElementBySerializing
{
	OFXMLElement *ret = [OFXMLElement elementWithName: self.className
						namespace: OFSerializationNS
					      stringValue: _text];
	void *pool = objc_autoreleasePoolPush();

	[ret addAttribute: [OFXMLAttribute attributeWithName: @"target"
						 stringValue: _target]];

	objc_autoreleasePoolPop(pool);

	return ret;
}
@end

		    prefix == nil && namespace == nil);
		break;
	}
}

-			  (void)parser: (OFXMLParser *)parser
  foundProcessingInstructionWithTarget: (OFString *)target
				  text: (OFString *)text
{
	[self	    parser: parser
	    didCreateEvent: eventTypeProcessingInstruction
		      name: target
		    prefix: nil
		 namespace: nil
		attributes: nil
		    string: text];
}

-    (void)parser: (OFXMLParser *)parser
  didStartElement: (OFString *)name
	   prefix: (OFString *)prefix
	namespace: (OFString *)namespace
       attributes: (OFArray *)attrs