xpointer: API to handle XML Pointers

## xpointer

xpointer - API to handle XML Pointers

API to handle XML Pointers Base implementation was made accordingly to W3C Candidate Recommendation 7 June 2000

Author(s): Daniel Veillard

## Synopsis

    xmlXPathObjectPtr	xmlXPtrEval	(const xmlChar * str,
    					 xmlXPathContextPtr ctx);
    xmlXPathContextPtr	xmlXPtrNewContext	(xmlDocPtr doc,
    						 xmlNodePtr here,
    						 xmlNodePtr origin);

## Description

## Details

### xmlXPtrEval ()

    xmlXPathObjectPtr	xmlXPtrEval	(const xmlChar * str,
    					 xmlXPathContextPtr ctx)

Evaluate the XPath Location Path in the given context.

`str`: | the XPointer expression
`ctx`: | the XPointer context
`Returns`: | the xmlXPathObjectPtr resulting from the evaluation or NULL. the caller has to free the object.

### xmlXPtrNewContext ()

    xmlXPathContextPtr	xmlXPtrNewContext	(xmlDocPtr doc,
    						 xmlNodePtr here,
    						 xmlNodePtr origin)

Create a new XPointer context

`doc`: | the XML document
`here`: | the node that directly contains the XPointer being evaluated or NULL
`origin`: | the element from which a user or program initiated traversal of the link, or NULL.
`Returns`: | the xmlXPathContext just allocated.