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/*
* hash.h: chained hash tables
*
* Copyright (C) 2000 Bjorn Reese and Daniel Veillard.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND
* CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER.
*
* Author: bjorn.reese@systematic.dk
*/
#ifndef __XML_HASH_H__
#define __XML_HASH_H__
#include "libxml/parser.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
* The hash table.
*/
typedef struct _xmlHashTable xmlHashTable;
typedef xmlHashTable *xmlHashTablePtr;
/*
* function types:
*/
/**
* xmlHashDeallocator:
* @payload: the data in the hash
* @name: the name associated
*
* Callback to free data from a hash.
*/
typedef void (*xmlHashDeallocator)(void *payload, xmlChar *name);
/**
* xmlHashCopier:
* @payload: the data in the hash
* @name: the name associated
*
* Callback to copy data from a hash.
*
* Returns a copy of the data or NULL in case of error.
*/
typedef void *(*xmlHashCopier)(void *payload, xmlChar *name);
/**
* xmlHashScanner:
* @payload: the data in the hash
* @data: extra scannner data
* @name: the name associated
*
* Callback when scanning data in a hash with the simple scanner.
*/
typedef void (*xmlHashScanner)(void *payload, void *data, xmlChar *name);
/**
* xmlHashScannerFull:
* @payload: the data in the hash
* @data: extra scannner data
* @name: the name associated
* @name2: the second name associated
* @name3: the third name associated
*
* Callback when scanning data in a hash with the full scanner.
*/
typedef void (*xmlHashScannerFull)(void *payload, void *data,
const xmlChar *name, const xmlChar *name2,
const xmlChar *name3);
/*
* Constructor and destructor.
*/
xmlHashTablePtr xmlHashCreate (int size);
void xmlHashFree (xmlHashTablePtr table,
xmlHashDeallocator f);
/*
* Add a new entry to the hash table.
*/
int xmlHashAddEntry (xmlHashTablePtr table,
const xmlChar *name,
void *userdata);
int xmlHashUpdateEntry(xmlHashTablePtr table,
const xmlChar *name,
void *userdata,
xmlHashDeallocator f);
int xmlHashAddEntry2(xmlHashTablePtr table,
const xmlChar *name,
const xmlChar *name2,
void *userdata);
int xmlHashUpdateEntry2(xmlHashTablePtr table,
const xmlChar *name,
const xmlChar *name2,
void *userdata,
xmlHashDeallocator f);
int xmlHashAddEntry3(xmlHashTablePtr table,
const xmlChar *name,
const xmlChar *name2,
const xmlChar *name3,
void *userdata);
int xmlHashUpdateEntry3(xmlHashTablePtr table,
const xmlChar *name,
const xmlChar *name2,
const xmlChar *name3,
void *userdata,
xmlHashDeallocator f);
/*
* Remove an entry from the hash table.
*/
int xmlHashRemoveEntry(xmlHashTablePtr table, const xmlChar *name,
xmlHashDeallocator f);
int xmlHashRemoveEntry2(xmlHashTablePtr table, const xmlChar *name,
const xmlChar *name2, xmlHashDeallocator f);
int xmlHashRemoveEntry3(xmlHashTablePtr table, const xmlChar *name,
const xmlChar *name2, const xmlChar *name3,
xmlHashDeallocator f);
/*
* Retrieve the userdata.
*/
void * xmlHashLookup (xmlHashTablePtr table,
const xmlChar *name);
void * xmlHashLookup2 (xmlHashTablePtr table,
const xmlChar *name,
const xmlChar *name2);
void * xmlHashLookup3 (xmlHashTablePtr table,
const xmlChar *name,
const xmlChar *name2,
const xmlChar *name3);
/*
* Helpers.
*/
xmlHashTablePtr xmlHashCopy (xmlHashTablePtr table,
xmlHashCopier f);
int xmlHashSize (xmlHashTablePtr table);
void xmlHashScan (xmlHashTablePtr table,
xmlHashScanner f,
void *data);
void xmlHashScan3 (xmlHashTablePtr table,
const xmlChar *name,
const xmlChar *name2,
const xmlChar *name3,
xmlHashScanner f,
void *data);
void xmlHashScanFull (xmlHashTablePtr table,
xmlHashScannerFull f,
void *data);
void xmlHashScanFull3(xmlHashTablePtr table,
const xmlChar *name,
const xmlChar *name2,
const xmlChar *name3,
xmlHashScannerFull f,
void *data);
#ifdef __cplusplus
}
#endif
#endif /* ! __XML_HASH_H__ */
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