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/**
* XML Security Library (http://www.aleksey.com/xmlsec).
*
* Enchanced nodes Set
*
* This is free software; see Copyright file in the source
* distribution for preciese wording.
*
* Copyright (C) 2002-2003 Aleksey Sanin <aleksey@aleksey.com>
*/
#ifndef __XMLSEC_NODESET_H__
#define __XMLSEC_NODESET_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <libxml/tree.h>
#include <libxml/xpath.h>
#include <xmlsec/xmlsec.h>
typedef struct _xmlSecNodeSet xmlSecNodeSet, *xmlSecNodeSetPtr;
/**
* xmlSecNodeSetType:
* @xmlSecNodeSetNormal: nodes set = nodes in the list.
* @xmlSecNodeSetInvert: nodes set = all document nodes minus nodes in the list.
* @xmlSecNodeSetTree: nodes set = nodes in the list and all their subtress.
* @xmlSecNodeSetTreeWithoutComments: nodes set = nodes in the list and
* all their subtress but no comment nodes.
* @xmlSecNodeSetTreeInvert: nodes set = all document nodes minus nodes in the
* list and all their subtress.
* @xmlSecNodeSetTreeWithoutCommentsInvert: nodes set = all document nodes
* minus (nodes in the list and all their subtress
* plus all comment nodes).
* @xmlSecNodeSetList: nodes set = all nodes in the chidren list of nodes sets.
*
* The basic nodes sets types.
*/
typedef enum {
xmlSecNodeSetNormal = 0,
xmlSecNodeSetInvert,
xmlSecNodeSetTree,
xmlSecNodeSetTreeWithoutComments,
xmlSecNodeSetTreeInvert,
xmlSecNodeSetTreeWithoutCommentsInvert,
xmlSecNodeSetList
} xmlSecNodeSetType;
/**
* xmlSecNodeSetOp:
* @xmlSecNodeSetIntersection: intersection.
* @xmlSecNodeSetSubtraction: subtraction.
* @xmlSecNodeSetUnion: union.
*
* The simple nodes sets operations.
*/
typedef enum {
xmlSecNodeSetIntersection = 0,
xmlSecNodeSetSubtraction,
xmlSecNodeSetUnion
} xmlSecNodeSetOp;
/**
* xmlSecNodeSet:
* @nodes: the nodes list.
* @doc: the parent XML document.
* @destroyDoc: the flag: if set to 1 then @doc will
* be destroyed when node set is destroyed.
* @type: the nodes set type.
* @op: the operation type.
* @next: the next nodes set.
* @prev: the previous nodes set.
* @children: the children list (valid only if type
* equal to #xmlSecNodeSetList).
*
* The enchanced nodes set.
*/
struct _xmlSecNodeSet {
xmlNodeSetPtr nodes;
xmlDocPtr doc;
int destroyDoc;
xmlSecNodeSetType type;
xmlSecNodeSetOp op;
xmlSecNodeSetPtr next;
xmlSecNodeSetPtr prev;
xmlSecNodeSetPtr children;
};
/**
* xmlSecNodeSetWalkCallback:
* @nset: the pointer to #xmlSecNodeSet structure.
* @cur: the pointer current XML node.
* @parent: the pointer to the @cur parent node.
* @data: the pointer to application specific data.
*
* The callback function called once per each node in the nodes set.
*
* Returns: 0 on success or a negative value if an error occurs
* an walk procedure should be interrupted.
*/
typedef int (*xmlSecNodeSetWalkCallback) (xmlSecNodeSetPtr nset,
xmlNodePtr cur,
xmlNodePtr parent,
void* data);
XMLSEC_EXPORT xmlSecNodeSetPtr xmlSecNodeSetCreate (xmlDocPtr doc,
xmlNodeSetPtr nodes,
xmlSecNodeSetType type);
XMLSEC_EXPORT void xmlSecNodeSetDestroy (xmlSecNodeSetPtr nset);
XMLSEC_EXPORT void xmlSecNodeSetDocDestroy (xmlSecNodeSetPtr nset);
XMLSEC_EXPORT int xmlSecNodeSetContains (xmlSecNodeSetPtr nset,
xmlNodePtr node,
xmlNodePtr parent);
XMLSEC_EXPORT xmlSecNodeSetPtr xmlSecNodeSetAdd (xmlSecNodeSetPtr nset,
xmlSecNodeSetPtr newNSet,
xmlSecNodeSetOp op);
XMLSEC_EXPORT xmlSecNodeSetPtr xmlSecNodeSetAddList (xmlSecNodeSetPtr nset,
xmlSecNodeSetPtr newNSet,
xmlSecNodeSetOp op);
XMLSEC_EXPORT xmlSecNodeSetPtr xmlSecNodeSetGetChildren(xmlDocPtr doc,
const xmlNodePtr parent,
int withComments,
int invert);
XMLSEC_EXPORT int xmlSecNodeSetWalk (xmlSecNodeSetPtr nset,
xmlSecNodeSetWalkCallback walkFunc,
void* data);
XMLSEC_EXPORT int xmlSecNodeSetDumpTextNodes(xmlSecNodeSetPtr nset,
xmlOutputBufferPtr out);
XMLSEC_EXPORT void xmlSecNodeSetDebugDump (xmlSecNodeSetPtr nset,
FILE *output);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __XMLSEC_NODESET_H__ */
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