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authorCET 2001 Tomasz Kłoczko <kloczek@pld.org.pl>2001-02-23 01:37:32 +0000
committerTomasz KĹ‚oczko <kloczek@src.gnome.org>2001-02-23 01:37:32 +0000
commit64636e7f6e97729eae365801ab13632492bf0b14 (patch)
tree09bde07fbf367c8b192804b891ed1b79df4fc0ea /hash.c
parent4b637079f26d8f5879ed45eb18cd249cad261951 (diff)
downloadlibxml2-64636e7f6e97729eae365801ab13632492bf0b14.tar.gz
moved to libxml directory - this allow simplify automake/autoconf. Now
Thu Feb 23 02:03:56 CET 2001 Tomasz Kłoczko <kloczek@pld.org.pl> * *.c *.h libxml files: moved to libxml directory - this allow simplify automake/autoconf. Now isn't neccessary hack on am/ac level for make and remove libxml symlink (modified for this also configure.in and main Makefile.am). Now automake abilities are used in best way (like in many other projects with libraries). * include/win32config.h: moved to libxml directory (now include directory isn't neccessary). * Makefile.am, examples/Makefile.am, libxml/Makefile.am: added empty DEFS and in INCLUDES rest only -I$(top_builddir) - this allow minimize parameters count passed to libtool script (now compilation is also slyghtly more quiet). * configure.in: simplifies libzdetestion - prepare separated variables for keep libz name and path to libz header files isn't realy neccessary (if someone have libz installed in non standard prefix path to header files ald library can be passed as: $ CFALGS="-I</libz.h/path>" LDFLAGS="-L</libz/path>" ./configure * autogen.sh: check now for libxml/entities.h. After above building libxml pass correctly and also pass "make install DESTDIR=</install/prefix>" from tar ball generated by "make dist". Seems ac/am reorganization is finished. This changes not touches any other things on *.{c,h} files level.
Diffstat (limited to 'hash.c')
-rw-r--r--hash.c620
1 files changed, 0 insertions, 620 deletions
diff --git a/hash.c b/hash.c
deleted file mode 100644
index 7881fc64..00000000
--- a/hash.c
+++ /dev/null
@@ -1,620 +0,0 @@
-/*
- * hash.c: chained hash tables
- *
- * Reference: Your favorite introductory book on algorithms
- *
- * 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
- */
-
-#ifdef WIN32
-#include "win32config.h"
-#else
-#include "config.h"
-#endif
-
-#include <string.h>
-#include <libxml/hash.h>
-#include <libxml/xmlmemory.h>
-#include <libxml/parser.h>
-
-/*
- * A single entry in the hash table
- */
-typedef struct _xmlHashEntry xmlHashEntry;
-typedef xmlHashEntry *xmlHashEntryPtr;
-struct _xmlHashEntry {
- struct _xmlHashEntry *next;
- xmlChar *name;
- xmlChar *name2;
- xmlChar *name3;
- void *payload;
-};
-
-/*
- * The entire hash table
- */
-struct _xmlHashTable {
- struct _xmlHashEntry **table;
- int size;
- int nbElems;
-};
-
-/*
- * xmlHashComputeKey:
- * Calculate the hash key
- */
-static unsigned long
-xmlHashComputeKey(xmlHashTablePtr table, const xmlChar *string) {
- unsigned long value = 0L;
- char ch;
-
- while ((ch = *string++) != 0) {
- /* value *= 31; */
- value += (unsigned long)ch;
- }
- return (value % table->size);
-}
-
-/**
- * xmlHashCreate:
- * @size: the size of the hash table
- *
- * Create a new xmlHashTablePtr.
- *
- * Returns the newly created object, or NULL if an error occured.
- */
-xmlHashTablePtr
-xmlHashCreate(int size) {
- xmlHashTablePtr table;
-
- if (size <= 0)
- size = 256;
-
- table = xmlMalloc(sizeof(xmlHashTable));
- if (table) {
- table->size = size;
- table->nbElems = 0;
- table->table = xmlMalloc(size * sizeof(xmlHashEntry));
- if (table->table) {
- memset(table->table, 0, size * sizeof(xmlHashEntry));
- return(table);
- }
- xmlFree(table);
- }
- return(NULL);
-}
-
-/**
- * xmlHashFree:
- * @table: the hash table
- * @f: the deallocator function for items in the hash
- *
- * Free the hash table and its contents. The userdata is
- * deallocated with f if provided.
- */
-void
-xmlHashFree(xmlHashTablePtr table, xmlHashDeallocator f) {
- int i;
- xmlHashEntryPtr iter;
- xmlHashEntryPtr next;
-
- if (table == NULL)
- return;
- if (table->table) {
- for(i = 0; i < table->size; i++) {
- iter = table->table[i];
- while (iter) {
- next = iter->next;
- if (iter->name)
- xmlFree(iter->name);
- if (iter->name2)
- xmlFree(iter->name2);
- if (iter->name3)
- xmlFree(iter->name3);
- if (f)
- f(iter->payload, iter->name);
- iter->payload = NULL;
- xmlFree(iter);
- iter = next;
- }
- table->table[i] = NULL;
- }
- xmlFree(table->table);
- }
- xmlFree(table);
-}
-
-/**
- * xmlHashAddEntry:
- * @table: the hash table
- * @name: the name of the userdata
- * @userdata: a pointer to the userdata
- *
- * Add the userdata to the hash table. This can later be retrieved
- * by using the name. Duplicate names generate errors.
- *
- * Returns 0 the addition succeeded and -1 in case of error.
- */
-int
-xmlHashAddEntry(xmlHashTablePtr table, const xmlChar *name, void *userdata) {
- return(xmlHashAddEntry3(table, name, NULL, NULL, userdata));
-}
-
-/**
- * xmlHashAddEntry2:
- * @table: the hash table
- * @name: the name of the userdata
- * @name2: a second name of the userdata
- * @userdata: a pointer to the userdata
- *
- * Add the userdata to the hash table. This can later be retrieved
- * by using the (name, name2) tuple. Duplicate tuples generate errors.
- *
- * Returns 0 the addition succeeded and -1 in case of error.
- */
-int
-xmlHashAddEntry2(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2, void *userdata) {
- return(xmlHashAddEntry3(table, name, name2, NULL, userdata));
-}
-
-/**
- * xmlHashUpdateEntry:
- * @table: the hash table
- * @name: the name of the userdata
- * @userdata: a pointer to the userdata
- * @f: the deallocator function for replaced item (if any)
- *
- * Add the userdata to the hash table. This can later be retrieved
- * by using the name. Existing entry for this name will be removed
- * and freed with @f if found.
- *
- * Returns 0 the addition succeeded and -1 in case of error.
- */
-int
-xmlHashUpdateEntry(xmlHashTablePtr table, const xmlChar *name,
- void *userdata, xmlHashDeallocator f) {
- return(xmlHashUpdateEntry3(table, name, NULL, NULL, userdata, f));
-}
-
-/**
- * xmlHashUpdateEntry2:
- * @table: the hash table
- * @name: the name of the userdata
- * @name2: a second name of the userdata
- * @userdata: a pointer to the userdata
- * @f: the deallocator function for replaced item (if any)
- *
- * Add the userdata to the hash table. This can later be retrieved
- * by using the (name, name2) tuple. Existing entry for this tuple will
- * be removed and freed with @f if found.
- *
- * Returns 0 the addition succeeded and -1 in case of error.
- */
-int
-xmlHashUpdateEntry2(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2, void *userdata,
- xmlHashDeallocator f) {
- return(xmlHashUpdateEntry3(table, name, name2, NULL, userdata, f));
-}
-
-/**
- * xmlHashLookup:
- * @table: the hash table
- * @name: the name of the userdata
- *
- * Find the userdata specified by the name.
- *
- * Returns the a pointer to the userdata
- */
-void *
-xmlHashLookup(xmlHashTablePtr table, const xmlChar *name) {
- return(xmlHashLookup3(table, name, NULL, NULL));
-}
-
-/**
- * xmlHashLookup2:
- * @table: the hash table
- * @name: the name of the userdata
- * @name2: a second name of the userdata
- *
- * Find the userdata specified by the (name, name2) tuple.
- *
- * Returns the a pointer to the userdata
- */
-void *
-xmlHashLookup2(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2) {
- return(xmlHashLookup3(table, name, name2, NULL));
-}
-
-/**
- * xmlHashAddEntry3:
- * @table: the hash table
- * @name: the name of the userdata
- * @name2: a second name of the userdata
- * @name3: a third name of the userdata
- * @userdata: a pointer to the userdata
- *
- * Add the userdata to the hash table. This can later be retrieved
- * by using the tuple (name, name2, name3). Duplicate entries generate
- * errors.
- *
- * Returns 0 the addition succeeded and -1 in case of error.
- */
-int
-xmlHashAddEntry3(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2, const xmlChar *name3,
- void *userdata) {
- unsigned long key;
- xmlHashEntryPtr entry;
- xmlHashEntryPtr insert;
-
- if ((table == NULL) || name == NULL)
- return(-1);
-
- /*
- * Check for duplicate and insertion location.
- */
- key = xmlHashComputeKey(table, name);
- if (table->table[key] == NULL) {
- insert = NULL;
- } else {
- for (insert = table->table[key]; insert->next != NULL;
- insert = insert->next) {
- if ((xmlStrEqual(insert->name, name)) &&
- (xmlStrEqual(insert->name2, name2)) &&
- (xmlStrEqual(insert->name3, name3)))
- return(-1);
- }
- if ((xmlStrEqual(insert->name, name)) &&
- (xmlStrEqual(insert->name2, name2)) &&
- (xmlStrEqual(insert->name3, name3)))
- return(-1);
- }
-
- entry = xmlMalloc(sizeof(xmlHashEntry));
- if (entry == NULL)
- return(-1);
- entry->name = xmlStrdup(name);
- entry->name2 = xmlStrdup(name2);
- entry->name3 = xmlStrdup(name3);
- entry->payload = userdata;
- entry->next = NULL;
-
-
- if (insert == NULL) {
- table->table[key] = entry;
- } else {
- insert->next = entry;
- }
- table->nbElems++;
- return(0);
-}
-
-/**
- * xmlHashUpdateEntry3:
- * @table: the hash table
- * @name: the name of the userdata
- * @name2: a second name of the userdata
- * @name3: a third name of the userdata
- * @userdata: a pointer to the userdata
- * @f: the deallocator function for replaced item (if any)
- *
- * Add the userdata to the hash table. This can later be retrieved
- * by using the tuple (name, name2, name3). Existing entry for this tuple
- * will be removed and freed with @f if found.
- *
- * Returns 0 the addition succeeded and -1 in case of error.
- */
-int
-xmlHashUpdateEntry3(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2, const xmlChar *name3,
- void *userdata, xmlHashDeallocator f) {
- unsigned long key;
- xmlHashEntryPtr entry;
- xmlHashEntryPtr insert;
-
- if ((table == NULL) || name == NULL)
- return(-1);
-
- /*
- * Check for duplicate and insertion location.
- */
- key = xmlHashComputeKey(table, name);
- if (table->table[key] == NULL) {
- insert = NULL;
- } else {
- for (insert = table->table[key]; insert->next != NULL;
- insert = insert->next) {
- if ((xmlStrEqual(insert->name, name)) &&
- (xmlStrEqual(insert->name2, name2)) &&
- (xmlStrEqual(insert->name3, name3))) {
- if (f)
- f(insert->payload, insert->name);
- insert->payload = userdata;
- return(0);
- }
- }
- if ((xmlStrEqual(insert->name, name)) &&
- (xmlStrEqual(insert->name2, name2)) &&
- (xmlStrEqual(insert->name3, name3))) {
- if (f)
- f(insert->payload, insert->name);
- insert->payload = userdata;
- return(0);
- }
- }
-
- entry = xmlMalloc(sizeof(xmlHashEntry));
- if (entry == NULL)
- return(-1);
- entry->name = xmlStrdup(name);
- entry->name2 = xmlStrdup(name2);
- entry->name3 = xmlStrdup(name3);
- entry->payload = userdata;
- entry->next = NULL;
- table->nbElems++;
-
-
- if (insert == NULL) {
- table->table[key] = entry;
- } else {
- insert->next = entry;
- }
- return(0);
-}
-
-/**
- * xmlHashLookup:
- * @table: the hash table
- * @name: the name of the userdata
- * @name2: a second name of the userdata
- * @name3: a third name of the userdata
- *
- * Find the userdata specified by the (name, name2, name3) tuple.
- *
- * Returns the a pointer to the userdata
- */
-void *
-xmlHashLookup3(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2, const xmlChar *name3) {
- unsigned long key;
- xmlHashEntryPtr entry;
-
- if (table == NULL)
- return(NULL);
- if (name == NULL)
- return(NULL);
- key = xmlHashComputeKey(table, name);
- for (entry = table->table[key]; entry != NULL; entry = entry->next) {
- if ((xmlStrEqual(entry->name, name)) &&
- (xmlStrEqual(entry->name2, name2)) &&
- (xmlStrEqual(entry->name3, name3)))
- return(entry->payload);
- }
- return(NULL);
-}
-
-/**
- * xmlHashScan:
- * @table: the hash table
- * @f: the scanner function for items in the hash
- * @data: extra data passed to f
- *
- * Scan the hash table and applied f to each value.
- */
-void
-xmlHashScan(xmlHashTablePtr table, xmlHashScanner f, void *data) {
- int i;
- xmlHashEntryPtr iter;
- xmlHashEntryPtr next;
-
- if (table == NULL)
- return;
- if (f == NULL)
- return;
-
- if (table->table) {
- for(i = 0; i < table->size; i++) {
- iter = table->table[i];
- while (iter) {
- next = iter->next;
- if (f)
- f(iter->payload, data, iter->name);
- iter = next;
- }
- }
- }
-}
-
-/**
- * xmlHashScan3:
- * @table: the hash table
- * @name: the name of the userdata or NULL
- * @name2: a second name of the userdata or NULL
- * @name3: a third name of the userdata or NULL
- * @f: the scanner function for items in the hash
- * @data: extra data passed to f
- *
- * Scan the hash table and applied f to each value matching
- * (name, name2, name3) tuple. If one of the names is null,
- * the comparison is considered to match.
- */
-void
-xmlHashScan3(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2, const xmlChar *name3,
- xmlHashScanner f, void *data) {
- int i;
- xmlHashEntryPtr iter;
- xmlHashEntryPtr next;
-
- if (table == NULL)
- return;
- if (f == NULL)
- return;
-
- if (table->table) {
- for(i = 0; i < table->size; i++) {
- iter = table->table[i];
- while (iter) {
- next = iter->next;
- if (((name == NULL) || (xmlStrEqual(name, iter->name))) &&
- ((name2 == NULL) || (xmlStrEqual(name2, iter->name2))) &&
- ((name3 == NULL) || (xmlStrEqual(name3, iter->name3)))) {
- f(iter->payload, data, iter->name);
- }
- iter = next;
- }
- }
- }
-}
-
-/**
- * xmlHashCopy:
- * @table: the hash table
- * @f: the copier function for items in the hash
- *
- * Scan the hash table and applied f to each value.
- *
- * Returns the new table or NULL in case of error.
- */
-xmlHashTablePtr
-xmlHashCopy(xmlHashTablePtr table, xmlHashCopier f) {
- int i;
- xmlHashEntryPtr iter;
- xmlHashEntryPtr next;
- xmlHashTablePtr ret;
-
- if (table == NULL)
- return(NULL);
- if (f == NULL)
- return(NULL);
-
- ret = xmlHashCreate(table->size);
- if (table->table) {
- for(i = 0; i < table->size; i++) {
- iter = table->table[i];
- while (iter) {
- next = iter->next;
- xmlHashAddEntry3(ret, iter->name, iter->name2,
- iter->name3, f(iter->payload, iter->name));
- iter = next;
- }
- }
- }
- ret->nbElems = table->nbElems;
- return(ret);
-}
-
-/**
- * xmlHashSize:
- * @table: the hash table
- *
- * Returns the number of elements in the hash table or
- * -1 in case of error
- */
-int
-xmlHashSize(xmlHashTablePtr table) {
- if (table == NULL)
- return(-1);
- return(table->nbElems);
-}
-
-/**
- * @table: the hash table
- * @name: the name of the userdata
- * @f: the deallocator function for removed item (if any)
- *
- * Find the userdata specified by the (name, name2, name3) tuple and remove
- * it from the hash table. Existing userdata for this tuple will be removed
- * and freed with @f.
- *
- * Returns 0 if the removal succeeded and -1 in case of error or not found.
- */
-int xmlHashRemoveEntry(xmlHashTablePtr table, const xmlChar *name,
- xmlHashDeallocator f) {
- return(xmlHashRemoveEntry3(table, name, NULL, NULL, f));
-}
-
-/**
- * @table: the hash table
- * @name: the name of the userdata
- * @name2: a second name of the userdata
- * @f: the deallocator function for removed item (if any)
- *
- * Find the userdata specified by the (name, name2, name3) tuple and remove
- * it from the hash table. Existing userdata for this tuple will be removed
- * and freed with @f.
- *
- * Returns 0 if the removal succeeded and -1 in case of error or not found.
- */
-int xmlHashRemoveEntry2(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2, xmlHashDeallocator f) {
- return(xmlHashRemoveEntry3(table, name, name2, NULL, f));
-}
-
-/**
- * @table: the hash table
- * @name: the name of the userdata
- * @name2: a second name of the userdata
- * @name3: a third name of the userdata
- * @f: the deallocator function for removed item (if any)
- *
- * Find the userdata specified by the (name, name2, name3) tuple and remove
- * it from the hash table. Existing userdata for this tuple will be removed
- * and freed with @f.
- *
- * Returns 0 if the removal succeeded and -1 in case of error or not found.
- */
-int xmlHashRemoveEntry3(xmlHashTablePtr table, const xmlChar *name,
- const xmlChar *name2, const xmlChar *name3,
- xmlHashDeallocator f) {
- unsigned long key;
- xmlHashEntryPtr entry;
- xmlHashEntryPtr prev = NULL;
-
- if (table == NULL || name == NULL)
- return(-1);
-
- key = xmlHashComputeKey(table, name);
- if (table->table[key] == NULL) {
- return(-1);
- } else {
- for (entry = table->table[key]; entry != NULL; entry = entry->next) {
- if (xmlStrEqual(entry->name, name) &&
- xmlStrEqual(entry->name2, name2) &&
- xmlStrEqual(entry->name3, name3)) {
- if(f)
- f(entry->payload, entry->name);
- entry->payload = NULL;
- if(entry->name)
- xmlFree(entry->name);
- if(entry->name2)
- xmlFree(entry->name2);
- if(entry->name3)
- xmlFree(entry->name3);
- if(prev)
- prev->next = entry->next;
- else
- table->table[key] = entry->next;
- xmlFree(entry);
- table->nbElems--;
- return(0);
- }
- prev = entry;
- }
- return(-1);
- }
-} \ No newline at end of file