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    </style><title>Module xpointer from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000">
Action against software patentsGnome2 LogoW3C LogoRed Hat Logo
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Module xpointer from libxml2
<center>API Menu</center>
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<center>API Indexes</center>
<center>Related links</center>
PrevxpathInternalsUpAPI documentationHomeThe XML C parser and toolkit of Gnome
API to handle XML Pointers Base implementation was made accordingly to W3C Candidate Recommendation 7 June 2000
Table of Contents
Structure xmlLocationSet
struct _xmlLocationSet
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Typedef xmlLocationSet * xmlLocationSetPtr
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xmlNodePtr	xmlXPtrBuildNodeList	(xmlXPathObjectPtr obj)
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xmlXPathObjectPtr	xmlXPtrEval	(const xmlChar * str, 
					 xmlXPathContextPtr ctx)
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void	xmlXPtrEvalRangePredicate	(xmlXPathParserContextPtr ctxt)
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void	xmlXPtrFreeLocationSet		(xmlLocationSetPtr obj)
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void	xmlXPtrLocationSetAdd		(xmlLocationSetPtr cur, 
					 xmlXPathObjectPtr val)
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xmlLocationSetPtr	xmlXPtrLocationSetCreate	(xmlXPathObjectPtr val)
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void	xmlXPtrLocationSetDel		(xmlLocationSetPtr cur, 
					 xmlXPathObjectPtr val)
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xmlLocationSetPtr	xmlXPtrLocationSetMerge	(xmlLocationSetPtr val1, 
						 xmlLocationSetPtr val2)
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void	xmlXPtrLocationSetRemove	(xmlLocationSetPtr cur, 
					 int val)
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xmlXPathObjectPtr	xmlXPtrNewCollapsedRange	(xmlNodePtr start)
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xmlXPathContextPtr	xmlXPtrNewContext	(xmlDocPtr doc, 
						 xmlNodePtr here, 
						 xmlNodePtr origin)
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xmlXPathObjectPtr	xmlXPtrNewLocationSetNodeSet	(xmlNodeSetPtr set)
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xmlXPathObjectPtr	xmlXPtrNewLocationSetNodes	(xmlNodePtr start, 
							 xmlNodePtr end)
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xmlXPathObjectPtr	xmlXPtrNewRange	(xmlNodePtr start, 
					 int startindex, 
					 xmlNodePtr end, 
					 int endindex)
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xmlXPathObjectPtr	xmlXPtrNewRangeNodeObject	(xmlNodePtr start, 
							 xmlXPathObjectPtr end)
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xmlXPathObjectPtr	xmlXPtrNewRangeNodePoint	(xmlNodePtr start, 
							 xmlXPathObjectPtr end)
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xmlXPathObjectPtr	xmlXPtrNewRangeNodes	(xmlNodePtr start, 
						 xmlNodePtr end)
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xmlXPathObjectPtr	xmlXPtrNewRangePointNode	(xmlXPathObjectPtr start, 
							 xmlNodePtr end)
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xmlXPathObjectPtr	xmlXPtrNewRangePoints	(xmlXPathObjectPtr start, 
						 xmlXPathObjectPtr end)
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void	xmlXPtrRangeToFunction		(xmlXPathParserContextPtr ctxt, 
					 int nargs)
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xmlXPathObjectPtr	xmlXPtrWrapLocationSet	(xmlLocationSetPtr val)
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Description
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Structure xmlLocationSet
Structure xmlLocationSet
struct _xmlLocationSet {
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    int	locNr	: number of locations in the set
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    int	locMax	: size of the array as allocated
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    xmlXPathObjectPtr *	locTab	: array of locations
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}
Function: xmlXPtrBuildNodeList
xmlNodePtr	xmlXPtrBuildNodeList	(xmlXPathObjectPtr obj)
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Build a node list tree copy of the XPointer result. This will drop Attributes and Namespace declarations.
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<tt>obj</tt>:the XPointer result from the evaluation.
<tt>Returns</tt>:an xmlNodePtr list or NULL. the caller has to free the node tree.
Function: xmlXPtrEval
xmlXPathObjectPtr	xmlXPtrEval	(const xmlChar * str, 
					 xmlXPathContextPtr ctx)
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Evaluate the XPath Location Path in the given context.
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<tt>str</tt>:the XPointer expression
<tt>ctx</tt>:the XPointer context
<tt>Returns</tt>:the xmlXPathObjectPtr resulting from the evaluation or NULL. the caller has to free the object.
Function: xmlXPtrEvalRangePredicate
void	xmlXPtrEvalRangePredicate	(xmlXPathParserContextPtr ctxt)
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[8] Predicate ::= '[' PredicateExpr ']' [9] PredicateExpr ::= Expr Evaluate a predicate as in xmlXPathEvalPredicate() but for a Location Set instead of a node set
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<tt>ctxt</tt>:the XPointer Parser context
Function: xmlXPtrFreeLocationSet
void	xmlXPtrFreeLocationSet		(xmlLocationSetPtr obj)
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Free the LocationSet compound (not the actual ranges !).
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<tt>obj</tt>:the xmlLocationSetPtr to free
Function: xmlXPtrLocationSetAdd
void	xmlXPtrLocationSetAdd		(xmlLocationSetPtr cur, 
					 xmlXPathObjectPtr val)
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add a new xmlXPathObjectPtr to an existing LocationSet If the location already exist in the set @val is freed.
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<tt>cur</tt>:the initial range set
<tt>val</tt>:a new xmlXPathObjectPtr
Function: xmlXPtrLocationSetCreate
xmlLocationSetPtr	xmlXPtrLocationSetCreate	(xmlXPathObjectPtr val)
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Create a new xmlLocationSetPtr of type double and of value @val
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<tt>val</tt>:an initial xmlXPathObjectPtr, or NULL
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrLocationSetDel
void	xmlXPtrLocationSetDel		(xmlLocationSetPtr cur, 
					 xmlXPathObjectPtr val)
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Removes an xmlXPathObjectPtr from an existing LocationSet
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<tt>cur</tt>:the initial range set
<tt>val</tt>:an xmlXPathObjectPtr
Function: xmlXPtrLocationSetMerge
xmlLocationSetPtr	xmlXPtrLocationSetMerge	(xmlLocationSetPtr val1, 
						 xmlLocationSetPtr val2)
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Merges two rangesets, all ranges from @val2 are added to @val1
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<tt>val1</tt>:the first LocationSet
<tt>val2</tt>:the second LocationSet
<tt>Returns</tt>:val1 once extended or NULL in case of error.
Function: xmlXPtrLocationSetRemove
void	xmlXPtrLocationSetRemove	(xmlLocationSetPtr cur, 
					 int val)
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Removes an entry from an existing LocationSet list.
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<tt>cur</tt>:the initial range set
<tt>val</tt>:the index to remove
Function: xmlXPtrNewCollapsedRange
xmlXPathObjectPtr	xmlXPtrNewCollapsedRange	(xmlNodePtr start)
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Create a new xmlXPathObjectPtr of type range using a single nodes
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<tt>start</tt>:the starting and ending node
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrNewContext
xmlXPathContextPtr	xmlXPtrNewContext	(xmlDocPtr doc, 
						 xmlNodePtr here, 
						 xmlNodePtr origin)
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Create a new XPointer context
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<tt>doc</tt>:the XML document
<tt>here</tt>:the node that directly contains the XPointer being evaluated or NULL
<tt>origin</tt>:the element from which a user or program initiated traversal of the link, or NULL.
<tt>Returns</tt>:the xmlXPathContext just allocated.
Function: xmlXPtrNewLocationSetNodeSet
xmlXPathObjectPtr	xmlXPtrNewLocationSetNodeSet	(xmlNodeSetPtr set)
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Create a new xmlXPathObjectPtr of type LocationSet and initialize it with all the nodes from @set
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<tt>set</tt>:a node set
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrNewLocationSetNodes
xmlXPathObjectPtr	xmlXPtrNewLocationSetNodes	(xmlNodePtr start, 
							 xmlNodePtr end)
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Create a new xmlXPathObjectPtr of type LocationSet and initialize it with the single range made of the two nodes @start and @end
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<tt>start</tt>:the start NodePtr value
<tt>end</tt>:the end NodePtr value or NULL
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrNewRange
xmlXPathObjectPtr	xmlXPtrNewRange	(xmlNodePtr start, 
					 int startindex, 
					 xmlNodePtr end, 
					 int endindex)
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Create a new xmlXPathObjectPtr of type range
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<tt>start</tt>:the starting node
<tt>startindex</tt>:the start index
<tt>end</tt>:the ending point
<tt>endindex</tt>:the ending index
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrNewRangeNodeObject
xmlXPathObjectPtr	xmlXPtrNewRangeNodeObject	(xmlNodePtr start, 
							 xmlXPathObjectPtr end)
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Create a new xmlXPathObjectPtr of type range from a not to an object
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<tt>start</tt>:the starting node
<tt>end</tt>:the ending object
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrNewRangeNodePoint
xmlXPathObjectPtr	xmlXPtrNewRangeNodePoint	(xmlNodePtr start, 
							 xmlXPathObjectPtr end)
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Create a new xmlXPathObjectPtr of type range from a node to a point
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<tt>start</tt>:the starting node
<tt>end</tt>:the ending point
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrNewRangeNodes
xmlXPathObjectPtr	xmlXPtrNewRangeNodes	(xmlNodePtr start, 
						 xmlNodePtr end)
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Create a new xmlXPathObjectPtr of type range using 2 nodes
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<tt>start</tt>:the starting node
<tt>end</tt>:the ending node
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrNewRangePointNode
xmlXPathObjectPtr	xmlXPtrNewRangePointNode	(xmlXPathObjectPtr start, 
							 xmlNodePtr end)
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Create a new xmlXPathObjectPtr of type range from a point to a node
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<tt>start</tt>:the starting point
<tt>end</tt>:the ending node
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrNewRangePoints
xmlXPathObjectPtr	xmlXPtrNewRangePoints	(xmlXPathObjectPtr start, 
						 xmlXPathObjectPtr end)
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Create a new xmlXPathObjectPtr of type range using 2 Points
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<tt>start</tt>:the starting point
<tt>end</tt>:the ending point
<tt>Returns</tt>:the newly created object.
Function: xmlXPtrRangeToFunction
void	xmlXPtrRangeToFunction		(xmlXPathParserContextPtr ctxt, 
					 int nargs)
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Implement the range-to() XPointer function Obsolete. range-to is not a real function but a special type of location step which is handled in xpath.c.
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<tt>ctxt</tt>:the XPointer Parser context
<tt>nargs</tt>:the number of args
Function: xmlXPtrWrapLocationSet
xmlXPathObjectPtr	xmlXPtrWrapLocationSet	(xmlLocationSetPtr val)
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Wrap the LocationSet @val in a new xmlXPathObjectPtr
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<tt>val</tt>:the LocationSet value
<tt>Returns</tt>:the newly created object.
Daniel Veillard
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