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#import "DDXML.h"
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// We can't rely solely on NSAssert, because many developers disable them for release builds.
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// Our API contract requires us to keep these assertions intact.
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#define DDXMLAssert(condition, desc, ...) \
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do{ \
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if(!(condition)) { \
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[[NSAssertionHandler currentHandler] handleFailureInMethod:_cmd \
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object:self \
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file:[NSString stringWithUTF8String:__FILE__] \
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lineNumber:__LINE__ \
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description:(desc), ##__VA_ARGS__]; \
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} \
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}while(NO)
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// Create assertion to ensure xml node is not a zombie.
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#if DDXML_DEBUG_MEMORY_ISSUES
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#define DDXMLNotZombieAssert() \
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do{ \
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if(DDXMLIsZombie(genericPtr, self)) { \
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NSString *desc = @"XML node is a zombie - It's parent structure has been freed!"; \
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[[NSAssertionHandler currentHandler] handleFailureInMethod:_cmd \
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object:self \
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file:[NSString stringWithUTF8String:__FILE__] \
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lineNumber:__LINE__ \
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description:desc]; \
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} \
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}while(NO)
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#endif
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#define DDLastErrorKey @"DDXML:LastError"
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/**
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* DDXMLNode can represent several underlying types, such as xmlNodePtr, xmlDocPtr, xmlAttrPtr, xmlNsPtr, etc.
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* All of these are pointers to structures, and all of those structures start with a pointer, and a type.
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* The xmlKind struct is used as a generic structure, and a stepping stone.
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* We use it to check the type of a structure, and then perform the appropriate cast.
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*
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* For example:
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* if(genericPtr->type == XML_ATTRIBUTE_NODE)
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* {
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* xmlAttrPtr attr = (xmlAttrPtr)genericPtr;
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* // Do something with attr
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* }
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**/
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struct _xmlKind {
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void * ignore;
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xmlElementType type;
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};
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typedef struct _xmlKind *xmlKindPtr;
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/**
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* Most xml types all start with this standard structure. In fact, all do except the xmlNsPtr.
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* We will occasionally take advantage of this to simplify code when the code wouldn't vary from type to type.
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* Obviously, you cannnot cast a xmlNsPtr to a xmlStdPtr.
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**/
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struct _xmlStd {
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void * _private;
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xmlElementType type;
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const xmlChar *name;
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struct _xmlNode *children;
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struct _xmlNode *last;
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struct _xmlNode *parent;
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struct _xmlStd *next;
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struct _xmlStd *prev;
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struct _xmlDoc *doc;
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};
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typedef struct _xmlStd *xmlStdPtr;
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NS_INLINE BOOL IsXmlAttrPtr(void *kindPtr)
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{
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return ((xmlKindPtr)kindPtr)->type == XML_ATTRIBUTE_NODE;
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}
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NS_INLINE BOOL IsXmlNodePtr(void *kindPtr)
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{
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switch (((xmlKindPtr)kindPtr)->type)
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{
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case XML_ELEMENT_NODE :
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case XML_PI_NODE :
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case XML_COMMENT_NODE :
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case XML_TEXT_NODE :
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case XML_CDATA_SECTION_NODE : return YES;
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default : return NO;
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}
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}
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NS_INLINE BOOL IsXmlDocPtr(void *kindPtr)
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{
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return ((xmlKindPtr)kindPtr)->type == XML_DOCUMENT_NODE;
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}
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NS_INLINE BOOL IsXmlDtdPtr(void *kindPtr)
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{
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return ((xmlKindPtr)kindPtr)->type == XML_DTD_NODE;
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}
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NS_INLINE BOOL IsXmlNsPtr(void *kindPtr)
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{
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return ((xmlKindPtr)kindPtr)->type == XML_NAMESPACE_DECL;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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@interface DDXMLNamespaceNode : DDXMLNode
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{
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// The xmlNsPtr type doesn't store a reference to it's parent.
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// This is here to fix the problem, and make this class more compatible with the NSXML classes.
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xmlNodePtr nsParentPtr;
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}
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+ (id)nodeWithNsPrimitive:(xmlNsPtr)ns nsParent:(xmlNodePtr)parent owner:(DDXMLNode *)owner;
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- (id)initWithNsPrimitive:(xmlNsPtr)ns nsParent:(xmlNodePtr)parent owner:(DDXMLNode *)owner;
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- (xmlNodePtr)_nsParentPtr;
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- (void)_setNsParentPtr:(xmlNodePtr)parentPtr;
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// Overrides several methods in DDXMLNode
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@end
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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@interface DDXMLAttributeNode : DDXMLNode
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{
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// The xmlAttrPtr type doesn't allow for ownership of a namespace.
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//
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// In other types, such as xmlNodePtr:
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// - nsDef stores namespaces that are owned by the node (have been alloced by the node).
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// - ns is simply a pointer to the default namespace of the node, which may or may not reside in its own nsDef list.
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//
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// The xmlAttrPtr only has a ns, it doesn't have a nsDef list.
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// Which completely makes sense really, since namespaces have to be defined elsewhere.
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//
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// This is here to maintain compatibility with the NSXML classes,
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// where one can assign a namespace to an attribute independently.
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xmlNsPtr attrNsPtr;
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}
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+ (id)nodeWithAttrPrimitive:(xmlAttrPtr)attr owner:(DDXMLNode *)owner;
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- (id)initWithAttrPrimitive:(xmlAttrPtr)attr owner:(DDXMLNode *)owner;
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// Overrides several methods in DDXMLNode
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@end
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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@interface DDXMLInvalidNode : DDXMLNode
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{
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}
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// Overrides several methods in DDXMLNode
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@end
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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@interface DDXMLNode (PrivateAPI)
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+ (id)nodeWithUnknownPrimitive:(xmlKindPtr)kindPtr owner:(DDXMLNode *)owner;
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+ (id)nodeWithPrimitive:(xmlKindPtr)kindPtr owner:(DDXMLNode *)owner;
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- (id)initWithPrimitive:(xmlKindPtr)kindPtr owner:(DDXMLNode *)owner;
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- (BOOL)_hasParent;
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+ (void)getHasPrefix:(BOOL *)hasPrefixPtr localName:(NSString **)localNamePtr forName:(NSString *)name;
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+ (void)getPrefix:(NSString **)prefixPtr localName:(NSString **)localNamePtr forName:(NSString *)name;
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+ (void)recursiveStripDocPointersFromNode:(xmlNodePtr)node;
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+ (void)detachNamespace:(xmlNsPtr)ns fromNode:(xmlNodePtr)node;
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+ (void)removeNamespace:(xmlNsPtr)ns fromNode:(xmlNodePtr)node;
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+ (void)removeAllNamespacesFromNode:(xmlNodePtr)node;
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+ (void)detachAttribute:(xmlAttrPtr)attr andClean:(BOOL)clean;
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+ (void)detachAttribute:(xmlAttrPtr)attr;
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+ (void)removeAttribute:(xmlAttrPtr)attr;
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+ (void)removeAllAttributesFromNode:(xmlNodePtr)node;
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+ (void)detachChild:(xmlNodePtr)child andClean:(BOOL)clean andFixNamespaces:(BOOL)fixNamespaces;
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+ (void)detachChild:(xmlNodePtr)child;
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+ (void)removeChild:(xmlNodePtr)child;
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+ (void)removeAllChildrenFromNode:(xmlNodePtr)node;
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BOOL DDXMLIsZombie(void *xmlPtr, DDXMLNode *wrapper);
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+ (NSError *)lastError;
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@end
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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@interface DDXMLElement (PrivateAPI)
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+ (id)nodeWithElementPrimitive:(xmlNodePtr)node owner:(DDXMLNode *)owner;
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- (id)initWithElementPrimitive:(xmlNodePtr)node owner:(DDXMLNode *)owner;
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- (DDXMLNode *)_recursiveResolveNamespaceForPrefix:(NSString *)prefix atNode:(xmlNodePtr)nodePtr;
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- (NSString *)_recursiveResolvePrefixForURI:(NSString *)uri atNode:(xmlNodePtr)nodePtr;
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@end
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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@interface DDXMLDocument (PrivateAPI)
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+ (id)nodeWithDocPrimitive:(xmlDocPtr)doc owner:(DDXMLNode *)owner;
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- (id)initWithDocPrimitive:(xmlDocPtr)doc owner:(DDXMLNode *)owner;
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@end
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