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/*
* Summary: Provide Canonical XML and Exclusive XML Canonicalization
* Description: the c14n modules provides a
*
* "Canonical XML" implementation
* http://www.w3.org/TR/xml-c14n
*
* and an
*
* "Exclusive XML Canonicalization" implementation
* http://www.w3.org/TR/xml-exc-c14n
* Copy: See Copyright for the status of this software.
*
* Author: Aleksey Sanin <aleksey@aleksey.com>
*/
#ifndef __XML_C14N_H__
#define __XML_C14N_H__
#ifdef LIBXML_C14N_ENABLED
#ifdef LIBXML_OUTPUT_ENABLED
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <libxml/xmlversion.h>
#include <libxml/tree.h>
#include <libxml/xpath.h>
/*
* XML Canonicazation
* http://www.w3.org/TR/xml-c14n
*
* Exclusive XML Canonicazation
* http://www.w3.org/TR/xml-exc-c14n
*
* Canonical form of an XML document could be created if and only if
* a) default attributes (if any) are added to all nodes
* b) all character and parsed entity references are resolved
* In order to achive this in libxml2 the document MUST be loaded with
* following global setings:
*
* xmlLoadExtDtdDefaultValue = XML_DETECT_IDS | XML_COMPLETE_ATTRS;
* xmlSubstituteEntitiesDefault(1);
*
* or corresponding parser context setting:
* xmlParserCtxtPtr ctxt;
*
* ...
* ctxt->loadsubset = XML_DETECT_IDS | XML_COMPLETE_ATTRS;
* ctxt->replaceEntities = 1;
* ...
*/
/*
* xmlC14NMode:
*
* Predefined values for C14N modes
*
*/
typedef enum {
XML_C14N_1_0 = 0, /* Origianal C14N 1.0 spec */
XML_C14N_EXCLUSIVE_1_0 = 1, /* Exclusive C14N 1.0 spec */
XML_C14N_1_1 = 2 /* C14N 1.1 spec */
} xmlC14NMode;
XMLPUBFUN int XMLCALL
xmlC14NDocSaveTo (xmlDocPtr doc,
xmlNodeSetPtr nodes,
int mode, /* a xmlC14NMode */
xmlChar **inclusive_ns_prefixes,
int with_comments,
xmlOutputBufferPtr buf);
XMLPUBFUN int XMLCALL
xmlC14NDocDumpMemory (xmlDocPtr doc,
xmlNodeSetPtr nodes,
int mode, /* a xmlC14NMode */
xmlChar **inclusive_ns_prefixes,
int with_comments,
xmlChar **doc_txt_ptr);
XMLPUBFUN int XMLCALL
xmlC14NDocSave (xmlDocPtr doc,
xmlNodeSetPtr nodes,
int mode, /* a xmlC14NMode */
xmlChar **inclusive_ns_prefixes,
int with_comments,
const char* filename,
int compression);
/**
* This is the core C14N function
*/
/**
* xmlC14NIsVisibleCallback:
* @user_data: user data
* @node: the curent node
* @parent: the parent node
*
* Signature for a C14N callback on visible nodes
*
* Returns 1 if the node should be included
*/
typedef int (*xmlC14NIsVisibleCallback) (void* user_data,
xmlNodePtr node,
xmlNodePtr parent);
XMLPUBFUN int XMLCALL
xmlC14NExecute (xmlDocPtr doc,
xmlC14NIsVisibleCallback is_visible_callback,
void* user_data,
int mode, /* a xmlC14NMode */
xmlChar **inclusive_ns_prefixes,
int with_comments,
xmlOutputBufferPtr buf);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBXML_OUTPUT_ENABLED */
#endif /* LIBXML_C14N_ENABLED */
#endif /* __XML_C14N_H__ */
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