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/usr/include/libxml2/libxml

Name	Size	Mode	Actions
c14n.h	3110	0644	edit dl rm
catalog.h	4958	0644	edit dl rm
chvalid.h	5159	0644	edit dl rm
debugXML.h	5181	0644	edit dl rm
dict.h	1783	0644	edit dl rm
DOCBparser.h	3277	0644	edit dl rm
encoding.h	7931	0644	edit dl rm
entities.h	4672	0644	edit dl rm
globals.h	14651	0644	edit dl rm
hash.h	6567	0644	edit dl rm
HTMLparser.h	9217	0644	edit dl rm
HTMLtree.h	3685	0644	edit dl rm
list.h	3422	0644	edit dl rm
nanoftp.h	3347	0644	edit dl rm
nanohttp.h	2018	0644	edit dl rm
parser.h	39305	0644	edit dl rm
parserInternals.h	17581	0644	edit dl rm
pattern.h	2586	0644	edit dl rm
relaxng.h	5958	0644	edit dl rm
SAX.h	4412	0644	edit dl rm
SAX2.h	4944	0644	edit dl rm
schemasInternals.h	26023	0644	edit dl rm
schematron.h	4393	0644	edit dl rm
threads.h	1852	0644	edit dl rm
tree.h	36782	0644	edit dl rm
uri.h	2664	0644	edit dl rm
valid.h	13818	0644	edit dl rm
xinclude.h	2967	0644	edit dl rm
xlink.h	5051	0644	edit dl rm
xmlautomata.h	3992	0644	edit dl rm
xmlerror.h	36770	0644	edit dl rm
xmlexports.h	3892	0644	edit dl rm
xmlIO.h	10448	0644	edit dl rm
xmlmemory.h	5945	0644	edit dl rm
xmlmodule.h	1171	0644	edit dl rm
xmlreader.h	12551	0644	edit dl rm
xmlregexp.h	5458	0644	edit dl rm
xmlsave.h	2260	0644	edit dl rm
xmlschemas.h	6202	0644	edit dl rm
xmlschemastypes.h	4893	0644	edit dl rm
xmlstring.h	5514	0644	edit dl rm
xmlunicode.h	9993	0644	edit dl rm
xmlversion.h	7636	0644	edit dl rm
xmlwriter.h	21159	0644	edit dl rm
xpath.h	16300	0644	edit dl rm
xpathInternals.h	19445	0644	edit dl rm
xpointer.h	3411	0644	edit dl rm

Edit: /usr/include/libxml2/libxml/xpath.h (16300B)

/*
 * Summary: XML Path Language implementation
 * Description: API for the XML Path Language implementation
 *
 * XML Path Language implementation
 * XPath is a language for addressing parts of an XML document,
 * designed to be used by both XSLT and XPointer
 *     http://www.w3.org/TR/xpath
 *
 * Implements
 * W3C Recommendation 16 November 1999
 *     http://www.w3.org/TR/1999/REC-xpath-19991116
 *
 * Copy: See Copyright for the status of this software.
 *
 * Author: Daniel Veillard
 */

#ifndef __XML_XPATH_H__
#define __XML_XPATH_H__

#include <libxml/xmlversion.h>

#ifdef LIBXML_XPATH_ENABLED

#include <libxml/xmlerror.h>
#include <libxml/tree.h>
#include <libxml/hash.h>
#endif /* LIBXML_XPATH_ENABLED */

#if defined(LIBXML_XPATH_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
#ifdef __cplusplus
extern "C" {
#endif
#endif /* LIBXML_XPATH_ENABLED or LIBXML_SCHEMAS_ENABLED */
	
#ifdef LIBXML_XPATH_ENABLED

typedef struct _xmlXPathContext xmlXPathContext;
typedef xmlXPathContext *xmlXPathContextPtr;
typedef struct _xmlXPathParserContext xmlXPathParserContext;
typedef xmlXPathParserContext *xmlXPathParserContextPtr;

/**
 * The set of XPath error codes.
 */

typedef enum {
    XPATH_EXPRESSION_OK = 0,
    XPATH_NUMBER_ERROR,
    XPATH_UNFINISHED_LITERAL_ERROR,
    XPATH_START_LITERAL_ERROR,
    XPATH_VARIABLE_REF_ERROR,
    XPATH_UNDEF_VARIABLE_ERROR,
    XPATH_INVALID_PREDICATE_ERROR,
    XPATH_EXPR_ERROR,
    XPATH_UNCLOSED_ERROR,
    XPATH_UNKNOWN_FUNC_ERROR,
    XPATH_INVALID_OPERAND,
    XPATH_INVALID_TYPE,
    XPATH_INVALID_ARITY,
    XPATH_INVALID_CTXT_SIZE,
    XPATH_INVALID_CTXT_POSITION,
    XPATH_MEMORY_ERROR,
    XPTR_SYNTAX_ERROR,
    XPTR_RESOURCE_ERROR,
    XPTR_SUB_RESOURCE_ERROR,
    XPATH_UNDEF_PREFIX_ERROR,
    XPATH_ENCODING_ERROR,
    XPATH_INVALID_CHAR_ERROR,
    XPATH_INVALID_CTXT,
    XPATH_STACK_ERROR
} xmlXPathError;

/*
 * A node-set (an unordered collection of nodes without duplicates).
 */
typedef struct _xmlNodeSet xmlNodeSet;
typedef xmlNodeSet *xmlNodeSetPtr;
struct _xmlNodeSet {
    int nodeNr;			/* number of nodes in the set */
    int nodeMax;		/* size of the array as allocated */
    xmlNodePtr *nodeTab;	/* array of nodes in no particular order */
    /* @@ with_ns to check wether namespace nodes should be looked at @@ */
};

/*
 * An expression is evaluated to yield an object, which
 * has one of the following four basic types:
 *   - node-set
 *   - boolean
 *   - number
 *   - string
 *
 * @@ XPointer will add more types !
 */

typedef enum {
    XPATH_UNDEFINED = 0,
    XPATH_NODESET = 1,
    XPATH_BOOLEAN = 2,
    XPATH_NUMBER = 3,
    XPATH_STRING = 4,
    XPATH_POINT = 5,
    XPATH_RANGE = 6,
    XPATH_LOCATIONSET = 7,
    XPATH_USERS = 8,
    XPATH_XSLT_TREE = 9  /* An XSLT value tree, non modifiable */
} xmlXPathObjectType;

typedef struct _xmlXPathObject xmlXPathObject;
typedef xmlXPathObject *xmlXPathObjectPtr;
struct _xmlXPathObject {
    xmlXPathObjectType type;
    xmlNodeSetPtr nodesetval;
    int boolval;
    double floatval;
    xmlChar *stringval;
    void *user;
    int index;
    void *user2;
    int index2;
};

/**
 * xmlXPathConvertFunc:
 * @obj:  an XPath object
 * @type:  the number of the target type
 *
 * A conversion function is associated to a type and used to cast
 * the new type to primitive values.
 *
 * Returns -1 in case of error, 0 otherwise
 */
typedef int (*xmlXPathConvertFunc) (xmlXPathObjectPtr obj, int type);

/*
 * Extra type: a name and a conversion function.
 */

typedef struct _xmlXPathType xmlXPathType;
typedef xmlXPathType *xmlXPathTypePtr;
struct _xmlXPathType {
    const xmlChar         *name;		/* the type name */
    xmlXPathConvertFunc func;		/* the conversion function */
};

/*
 * Extra variable: a name and a value.
 */

typedef struct _xmlXPathVariable xmlXPathVariable;
typedef xmlXPathVariable *xmlXPathVariablePtr;
struct _xmlXPathVariable {
    const xmlChar       *name;		/* the variable name */
    xmlXPathObjectPtr value;		/* the value */
};

/**
 * xmlXPathEvalFunc:
 * @ctxt: an XPath parser context
 * @nargs: the number of arguments passed to the function
 *
 * An XPath evaluation function, the parameters are on the XPath context stack.
 */

typedef void (*xmlXPathEvalFunc)(xmlXPathParserContextPtr ctxt,
	                         int nargs);

/*
 * Extra function: a name and a evaluation function.
 */

typedef struct _xmlXPathFunct xmlXPathFunct;
typedef xmlXPathFunct *xmlXPathFuncPtr;
struct _xmlXPathFunct {
    const xmlChar      *name;		/* the function name */
    xmlXPathEvalFunc func;		/* the evaluation function */
};

/**
 * xmlXPathAxisFunc:
 * @ctxt:  the XPath interpreter context
 * @cur:  the previous node being explored on that axis
 *
 * An axis traversal function. To traverse an axis, the engine calls
 * the first time with cur == NULL and repeat until the function returns
 * NULL indicating the end of the axis traversal.
 *
 * Returns the next node in that axis or NULL if at the end of the axis.
 */

typedef xmlXPathObjectPtr (*xmlXPathAxisFunc) (xmlXPathParserContextPtr ctxt,
				 xmlXPathObjectPtr cur);

/*
 * Extra axis: a name and an axis function.
 */

typedef struct _xmlXPathAxis xmlXPathAxis;
typedef xmlXPathAxis *xmlXPathAxisPtr;
struct _xmlXPathAxis {
    const xmlChar      *name;		/* the axis name */
    xmlXPathAxisFunc func;		/* the search function */
};

/**
 * xmlXPathFunction:
 * @ctxt:  the XPath interprestation context
 * @nargs:  the number of arguments
 *
 * An XPath function.
 * The arguments (if any) are popped out from the context stack
 * and the result is pushed on the stack.
 */

typedef void (*xmlXPathFunction) (xmlXPathParserContextPtr ctxt, int nargs);

/*
 * Function and Variable Lookup.
 */

/**
 * xmlXPathVariableLookupFunc:
 * @ctxt:  an XPath context
 * @name:  name of the variable
 * @ns_uri:  the namespace name hosting this variable
 *
 * Prototype for callbacks used to plug variable lookup in the XPath
 * engine.
 *
 * Returns the XPath object value or NULL if not found.
 */
typedef xmlXPathObjectPtr (*xmlXPathVariableLookupFunc) (void *ctxt,
                                         const xmlChar *name,
                                         const xmlChar *ns_uri);

/**
 * xmlXPathFuncLookupFunc:
 * @ctxt:  an XPath context
 * @name:  name of the function
 * @ns_uri:  the namespace name hosting this function
 *
 * Prototype for callbacks used to plug function lookup in the XPath
 * engine.
 *
 * Returns the XPath function or NULL if not found.
 */
typedef xmlXPathFunction (*xmlXPathFuncLookupFunc) (void *ctxt,
					 const xmlChar *name,
					 const xmlChar *ns_uri);

/**
 * xmlXPathFlags:
 * Flags for XPath engine compilation and runtime
 */
/**
 * XML_XPATH_CHECKNS:
 *
 * check namespaces at compilation
 */
#define XML_XPATH_CHECKNS (1<<0)
/**
 * XML_XPATH_NOVAR:
 *
 * forbid variables in expression
 */
#define XML_XPATH_NOVAR	  (1<<1)

/**
 * xmlXPathContext:
 *
 * Expression evaluation occurs with respect to a context.
 * he context consists of:
 *    - a node (the context node) 
 *    - a node list (the context node list) 
 *    - a set of variable bindings 
 *    - a function library 
 *    - the set of namespace declarations in scope for the expression 
 * Following the switch to hash tables, this need to be trimmed up at
 * the next binary incompatible release.
 * The node may be modified when the context is passed to libxml2
 * for an XPath evaluation so you may need to initialize it again
 * before the next call.
 */

struct _xmlXPathContext {
    xmlDocPtr doc;			/* The current document */
    xmlNodePtr node;			/* The current node */

int nb_variables_unused;		/* unused (hash table) */
    int max_variables_unused;		/* unused (hash table) */
    xmlHashTablePtr varHash;		/* Hash table of defined variables */

int nb_types;			/* number of defined types */
    int max_types;			/* max number of types */
    xmlXPathTypePtr types;		/* Array of defined types */

int nb_funcs_unused;		/* unused (hash table) */
    int max_funcs_unused;		/* unused (hash table) */
    xmlHashTablePtr funcHash;		/* Hash table of defined funcs */

int nb_axis;			/* number of defined axis */
    int max_axis;			/* max number of axis */
    xmlXPathAxisPtr axis;		/* Array of defined axis */

/* the namespace nodes of the context node */
    xmlNsPtr *namespaces;		/* Array of namespaces */
    int nsNr;				/* number of namespace in scope */
    void *user;				/* function to free */

/* extra variables */
    int contextSize;			/* the context size */
    int proximityPosition;		/* the proximity position */

/* extra stuff for XPointer */
    int xptr;				/* is this an XPointer context? */
    xmlNodePtr here;			/* for here() */
    xmlNodePtr origin;			/* for origin() */

/* the set of namespace declarations in scope for the expression */
    xmlHashTablePtr nsHash;		/* The namespaces hash table */
    xmlXPathVariableLookupFunc varLookupFunc;/* variable lookup func */
    void *varLookupData;		/* variable lookup data */

/* Possibility to link in an extra item */
    void *extra;                        /* needed for XSLT */

/* The function name and URI when calling a function */
    const xmlChar *function;
    const xmlChar *functionURI;

/* function lookup function and data */
    xmlXPathFuncLookupFunc funcLookupFunc;/* function lookup func */
    void *funcLookupData;		/* function lookup data */

/* temporary namespace lists kept for walking the namespace axis */
    xmlNsPtr *tmpNsList;		/* Array of namespaces */
    int tmpNsNr;			/* number of namespaces in scope */

/* error reporting mechanism */
    void *userData;                     /* user specific data block */
    xmlStructuredErrorFunc error;       /* the callback in case of errors */
    xmlError lastError;			/* the last error */
    xmlNodePtr debugNode;		/* the source node XSLT */

/* dictionary */
    xmlDictPtr dict;			/* dictionary if any */

int flags;				/* flags to control compilation */

/* Cache for reusal of XPath objects */
    void *cache;
};

/*
 * The structure of a compiled expression form is not public.
 */

typedef struct _xmlXPathCompExpr xmlXPathCompExpr;
typedef xmlXPathCompExpr *xmlXPathCompExprPtr;

/**
 * xmlXPathParserContext:
 *
 * An XPath parser context. It contains pure parsing informations,
 * an xmlXPathContext, and the stack of objects.
 */
struct _xmlXPathParserContext {
    const xmlChar *cur;			/* the current char being parsed */
    const xmlChar *base;			/* the full expression */

int error;				/* error code */

xmlXPathContextPtr  context;	/* the evaluation context */
    xmlXPathObjectPtr     value;	/* the current value */
    int                 valueNr;	/* number of values stacked */
    int                valueMax;	/* max number of values stacked */
    xmlXPathObjectPtr *valueTab;	/* stack of values */

xmlXPathCompExprPtr comp;		/* the precompiled expression */
    int xptr;				/* it this an XPointer expression */
    xmlNodePtr         ancestor;	/* used for walking preceding axis */

int              valueFrame;        /* used to limit Pop on the stack */
};

/************************************************************************
 *									*
 *			Public API					*
 *									*
 ************************************************************************/

/**
 * Objects and Nodesets handling
 */

XMLPUBVAR double xmlXPathNAN;
XMLPUBVAR double xmlXPathPINF;
XMLPUBVAR double xmlXPathNINF;

/* These macros may later turn into functions */
/**
 * xmlXPathNodeSetGetLength:
 * @ns:  a node-set
 *
 * Implement a functionality similar to the DOM NodeList.length.
 *
 * Returns the number of nodes in the node-set.
 */
#define xmlXPathNodeSetGetLength(ns) ((ns) ? (ns)->nodeNr : 0)
/**
 * xmlXPathNodeSetItem:
 * @ns:  a node-set
 * @index:  index of a node in the set
 *
 * Implements a functionality similar to the DOM NodeList.item().
 *
 * Returns the xmlNodePtr at the given @index in @ns or NULL if
 *         @index is out of range (0 to length-1)
 */
#define xmlXPathNodeSetItem(ns, index)				\
		((((ns) != NULL) && 				\
		  ((index) >= 0) && ((index) < (ns)->nodeNr)) ?	\
		 (ns)->nodeTab[(index)]				\
		 : NULL)
/**
 * xmlXPathNodeSetIsEmpty:
 * @ns: a node-set
 *
 * Checks whether @ns is empty or not.
 *
 * Returns %TRUE if @ns is an empty node-set.
 */
#define xmlXPathNodeSetIsEmpty(ns)                                      \
    (((ns) == NULL) || ((ns)->nodeNr == 0) || ((ns)->nodeTab == NULL))

XMLPUBFUN void XMLCALL		   
		    xmlXPathFreeObject		(xmlXPathObjectPtr obj);
XMLPUBFUN xmlNodeSetPtr XMLCALL	   
		    xmlXPathNodeSetCreate	(xmlNodePtr val);
XMLPUBFUN void XMLCALL		   
		    xmlXPathFreeNodeSetList	(xmlXPathObjectPtr obj);
XMLPUBFUN void XMLCALL		   
		    xmlXPathFreeNodeSet		(xmlNodeSetPtr obj);
XMLPUBFUN xmlXPathObjectPtr XMLCALL  
		    xmlXPathObjectCopy		(xmlXPathObjectPtr val);
XMLPUBFUN int XMLCALL		   
		    xmlXPathCmpNodes		(xmlNodePtr node1,
						 xmlNodePtr node2);
/**
 * Conversion functions to basic types.
 */
XMLPUBFUN int XMLCALL		   
		    xmlXPathCastNumberToBoolean	(double val);
XMLPUBFUN int XMLCALL		   
		    xmlXPathCastStringToBoolean	(const xmlChar * val);
XMLPUBFUN int XMLCALL		   
		    xmlXPathCastNodeSetToBoolean(xmlNodeSetPtr ns);
XMLPUBFUN int XMLCALL		   
		    xmlXPathCastToBoolean	(xmlXPathObjectPtr val);

XMLPUBFUN double XMLCALL		   
		    xmlXPathCastBooleanToNumber	(int val);
XMLPUBFUN double XMLCALL		   
		    xmlXPathCastStringToNumber	(const xmlChar * val);
XMLPUBFUN double XMLCALL		   
		    xmlXPathCastNodeToNumber	(xmlNodePtr node);
XMLPUBFUN double XMLCALL		   
		    xmlXPathCastNodeSetToNumber	(xmlNodeSetPtr ns);
XMLPUBFUN double XMLCALL		   
		    xmlXPathCastToNumber	(xmlXPathObjectPtr val);

XMLPUBFUN xmlChar * XMLCALL	   
		    xmlXPathCastBooleanToString	(int val);
XMLPUBFUN xmlChar * XMLCALL	   
		    xmlXPathCastNumberToString	(double val);
XMLPUBFUN xmlChar * XMLCALL	   
		    xmlXPathCastNodeToString	(xmlNodePtr node);
XMLPUBFUN xmlChar * XMLCALL	   
		    xmlXPathCastNodeSetToString	(xmlNodeSetPtr ns);
XMLPUBFUN xmlChar * XMLCALL	   
		    xmlXPathCastToString	(xmlXPathObjectPtr val);

XMLPUBFUN xmlXPathObjectPtr XMLCALL  
		    xmlXPathConvertBoolean	(xmlXPathObjectPtr val);
XMLPUBFUN xmlXPathObjectPtr XMLCALL  
		    xmlXPathConvertNumber	(xmlXPathObjectPtr val);
XMLPUBFUN xmlXPathObjectPtr XMLCALL  
		    xmlXPathConvertString	(xmlXPathObjectPtr val);

/**
 * Context handling.
 */
XMLPUBFUN xmlXPathContextPtr XMLCALL 
		    xmlXPathNewContext		(xmlDocPtr doc);
XMLPUBFUN void XMLCALL
		    xmlXPathFreeContext		(xmlXPathContextPtr ctxt);
XMLPUBFUN int XMLCALL
		    xmlXPathContextSetCache(xmlXPathContextPtr ctxt,
				            int active,
					    int value,
					    int options);
/**
 * Evaluation functions.
 */
XMLPUBFUN long XMLCALL               
		    xmlXPathOrderDocElems	(xmlDocPtr doc);
XMLPUBFUN xmlXPathObjectPtr XMLCALL  
		    xmlXPathEval		(const xmlChar *str,
						 xmlXPathContextPtr ctx);
XMLPUBFUN xmlXPathObjectPtr XMLCALL  
		    xmlXPathEvalExpression	(const xmlChar *str,
						 xmlXPathContextPtr ctxt);
XMLPUBFUN int XMLCALL                
		    xmlXPathEvalPredicate	(xmlXPathContextPtr ctxt,
						 xmlXPathObjectPtr res);
/**
 * Separate compilation/evaluation entry points.
 */
XMLPUBFUN xmlXPathCompExprPtr XMLCALL 
		    xmlXPathCompile		(const xmlChar *str);
XMLPUBFUN xmlXPathCompExprPtr XMLCALL 
		    xmlXPathCtxtCompile		(xmlXPathContextPtr ctxt,
		    				 const xmlChar *str);
XMLPUBFUN xmlXPathObjectPtr XMLCALL   
		    xmlXPathCompiledEval	(xmlXPathCompExprPtr comp,
						 xmlXPathContextPtr ctx);
XMLPUBFUN int XMLCALL   
		    xmlXPathCompiledEvalToBoolean(xmlXPathCompExprPtr comp,
						 xmlXPathContextPtr ctxt);
XMLPUBFUN void XMLCALL                
		    xmlXPathFreeCompExpr	(xmlXPathCompExprPtr comp);
#endif /* LIBXML_XPATH_ENABLED */
#if defined(LIBXML_XPATH_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
XMLPUBFUN void XMLCALL		   
		    xmlXPathInit		(void);
XMLPUBFUN int XMLCALL
		xmlXPathIsNaN	(double val);
XMLPUBFUN int XMLCALL
		xmlXPathIsInf	(double val);

#ifdef __cplusplus
}
#endif

#endif /* LIBXML_XPATH_ENABLED or LIBXML_SCHEMAS_ENABLED*/
#endif /* ! __XML_XPATH_H__ */

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