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Started working on the hash table module integration, fixed a bug:

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- entities.[ch] xpath.[ch] hash.[ch] debugXML.c tree.h: added/hacked
  hash tables from Bjorn Reese <breese@mail1.stofanet.dk>. Switched
  XPath functions and XML entities table to them. More to come...
- xmlIO.c: fixed libxml closing FILEs it didn't open.
Daniel
This commit is contained in:
Daniel Veillard
2000-10-22 16:56:02 +00:00
parent 683cb02636
commit 52afe800ac
14 changed files with 180 additions and 612 deletions
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468
entities.c
View File

@ -18,6 +18,7 @@
#include <stdlib.h>
#endif
#include <libxml/xmlmemory.h>
#include <libxml/hash.h>
#include <libxml/entities.h>
#include <libxml/parser.h>
@ -60,7 +61,7 @@ struct xmlPredefinedEntityValue xmlPredefinedEntityValues[] = {
* TODO: !!!!!!! This is GROSS, allocation of a 256 entry hash for
* a fixed number of 4 elements !
*/
xmlEntitiesTablePtr xmlPredefinedEntities = NULL;
xmlHashTablePtr xmlPredefinedEntities = NULL;
/*
* xmlFreeEntity : clean-up an entity record.
@ -82,15 +83,6 @@ void xmlFreeEntity(xmlEntityPtr entity) {
xmlFree((char *) entity->content);
if (entity->orig != NULL)
xmlFree((char *) entity->orig);
#ifdef WITH_EXTRA_ENT_DETECT
if (entity->entTab != NULL) {
int i;
for (i = 0; i < entity->entNr; i++)
xmlFree(entity->entTab[i]);
xmlFree(entity->entTab);
}
#endif
memset(entity, -1, sizeof(xmlEntity));
xmlFree(entity);
}
@ -99,77 +91,35 @@ void xmlFreeEntity(xmlEntityPtr entity) {
* xmlAddEntity : register a new entity for an entities table.
*/
static xmlEntityPtr
xmlAddEntity(xmlEntitiesTablePtr table, const xmlChar *name, int type,
xmlAddEntity(xmlDtdPtr dtd, const xmlChar *name, int type,
const xmlChar *ExternalID, const xmlChar *SystemID,
const xmlChar *content) {
#ifndef ENTITY_HASH_SIZE
int i;
#endif
int hash;
xmlEntitiesTablePtr table = NULL;
xmlEntityPtr ret;
if (name == NULL)
return(NULL);
#ifdef ENTITY_HASH_SIZE
hash = xmlEntityComputeHash(name);
ret = table->table[hash];
while (ret != NULL) {
if (xmlStrEqual(ret->name, name)) {
/*
* The entity is already defined in this Dtd, the spec says to NOT
* override it ... Is it worth a Warning ??? !!!
* Not having a cprinting context this seems hard ...
*/
if (((type == XML_INTERNAL_PARAMETER_ENTITY) ||
(type == XML_EXTERNAL_PARAMETER_ENTITY)) &&
((ret->etype == XML_INTERNAL_PARAMETER_ENTITY) ||
(ret->etype == XML_EXTERNAL_PARAMETER_ENTITY)))
return(NULL);
else
if (((type != XML_INTERNAL_PARAMETER_ENTITY) &&
(type != XML_EXTERNAL_PARAMETER_ENTITY)) &&
((ret->etype != XML_INTERNAL_PARAMETER_ENTITY) &&
(ret->etype != XML_EXTERNAL_PARAMETER_ENTITY)))
return(NULL);
}
ret = ret->nexte;
switch (type) {
case XML_INTERNAL_GENERAL_ENTITY:
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
if (dtd->entities == NULL)
dtd->entities = xmlHashCreate(0);
table = dtd->entities;
break;
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
if (dtd->pentities == NULL)
dtd->pentities = xmlHashCreate(0);
table = dtd->pentities;
break;
case XML_INTERNAL_PREDEFINED_ENTITY:
if (xmlPredefinedEntities == NULL)
xmlPredefinedEntities = xmlHashCreate(8);
table = xmlPredefinedEntities;
}
#else
for (i = 0;i < table->nb_entities;i++) {
ret = table->table[i];
if (xmlStrEqual(ret->name, name)) {
/*
* The entity is already defined in this Dtd, the spec says to NOT
* override it ... Is it worth a Warning ??? !!!
* Not having a cprinting context this seems hard ...
*/
if (((type == XML_INTERNAL_PARAMETER_ENTITY) ||
(type == XML_EXTERNAL_PARAMETER_ENTITY)) &&
((ret->etype == XML_INTERNAL_PARAMETER_ENTITY) ||
(ret->etype == XML_EXTERNAL_PARAMETER_ENTITY)))
return(NULL);
else
if (((type != XML_INTERNAL_PARAMETER_ENTITY) &&
(type != XML_EXTERNAL_PARAMETER_ENTITY)) &&
((ret->etype != XML_INTERNAL_PARAMETER_ENTITY) &&
(ret->etype != XML_EXTERNAL_PARAMETER_ENTITY)))
return(NULL);
}
}
if (table->nb_entities >= table->max_entities) {
/*
* need more elements.
*/
table->max_entities *= 2;
table->table = (xmlEntityPtr *)
xmlRealloc(table->table,
table->max_entities * sizeof(xmlEntityPtr));
if (table->table == NULL) {
perror("realloc failed");
return(NULL);
}
}
#endif
if (table == NULL)
return(NULL);
ret = (xmlEntityPtr) xmlMalloc(sizeof(xmlEntity));
if (ret == NULL) {
fprintf(stderr, "xmlAddEntity: out of memory\n");
@ -177,12 +127,6 @@ xmlAddEntity(xmlEntitiesTablePtr table, const xmlChar *name, int type,
}
memset(ret, 0, sizeof(xmlEntity));
ret->type = XML_ENTITY_DECL;
#ifdef ENTITY_HASH_SIZE
ret->nexte = table->table[hash];
table->table[hash] = ret;
#else
table->table[table->nb_entities] = ret;
#endif
/*
* fill the structure.
@ -203,8 +147,13 @@ xmlAddEntity(xmlEntitiesTablePtr table, const xmlChar *name, int type,
ret->URI = NULL; /* to be computed by the layer knowing
the defining entity */
ret->orig = NULL;
table->nb_entities++;
if (xmlHashAddEntry(table, name, ret)) {
/*
* entity was already defined at another level.
*/
xmlFreeEntity(ret);
}
return(ret);
}
@ -231,7 +180,8 @@ void xmlInitializePredefinedEntities(void) {
in = xmlPredefinedEntityValues[i].value;
out = &value[0];
for (;(*out++ = (xmlChar) *in);)in++;
xmlAddEntity(xmlPredefinedEntities, (const xmlChar *) &name[0],
xmlAddEntity(NULL, (const xmlChar *) &name[0],
XML_INTERNAL_PREDEFINED_ENTITY, NULL, NULL,
&value[0]);
}
@ -259,26 +209,9 @@ void xmlCleanupPredefinedEntities(void) {
*/
xmlEntityPtr
xmlGetPredefinedEntity(const xmlChar *name) {
int i;
xmlEntityPtr cur;
if (xmlPredefinedEntities == NULL)
xmlInitializePredefinedEntities();
#ifdef ENTITY_HASH_SIZE
i = xmlEntityComputeHash(name);
cur = xmlPredefinedEntities->table[i];
while (cur != NULL) {
if (xmlStrEqual(cur->name, name))
return(cur);
cur = cur->nexte;
}
#else
for (i = 0;i < xmlPredefinedEntities->nb_entities;i++) {
cur = xmlPredefinedEntities->table[i];
if (xmlStrEqual(cur->name, name)) return(cur);
}
#endif
return(NULL);
return((xmlEntityPtr) xmlHashLookup(xmlPredefinedEntities, name));
}
/**
@ -298,7 +231,6 @@ xmlEntityPtr
xmlAddDtdEntity(xmlDocPtr doc, const xmlChar *name, int type,
const xmlChar *ExternalID, const xmlChar *SystemID,
const xmlChar *content) {
xmlEntitiesTablePtr table;
xmlEntityPtr ret;
xmlDtdPtr dtd;
@ -313,12 +245,7 @@ xmlAddDtdEntity(xmlDocPtr doc, const xmlChar *name, int type,
return(NULL);
}
dtd = doc->extSubset;
table = (xmlEntitiesTablePtr) dtd->entities;
if (table == NULL) {
table = xmlCreateEntitiesTable();
dtd->entities = table;
}
ret = xmlAddEntity(table, name, type, ExternalID, SystemID, content);
ret = xmlAddEntity(dtd, name, type, ExternalID, SystemID, content);
if (ret == NULL) return(NULL);
/*
@ -353,7 +280,6 @@ xmlEntityPtr
xmlAddDocEntity(xmlDocPtr doc, const xmlChar *name, int type,
const xmlChar *ExternalID, const xmlChar *SystemID,
const xmlChar *content) {
xmlEntitiesTablePtr table;
xmlEntityPtr ret;
xmlDtdPtr dtd;
@ -368,12 +294,7 @@ xmlAddDocEntity(xmlDocPtr doc, const xmlChar *name, int type,
return(NULL);
}
dtd = doc->intSubset;
table = (xmlEntitiesTablePtr) doc->intSubset->entities;
if (table == NULL) {
table = xmlCreateEntitiesTable();
doc->intSubset->entities = table;
}
ret = xmlAddEntity(table, name, type, ExternalID, SystemID, content);
ret = xmlAddEntity(dtd, name, type, ExternalID, SystemID, content);
if (ret == NULL) return(NULL);
/*
@ -391,143 +312,6 @@ xmlAddDocEntity(xmlDocPtr doc, const xmlChar *name, int type,
return(ret);
}
#ifdef WITH_EXTRA_ENT_DETECT
/**
* xmlEntityCheckReference:
* @ent: an existing entity
* @to: the entity name it's referencing
*
* Function to keep track of references and detect cycles (well formedness
* errors !).
*
* Returns: 0 if Okay, -1 in case of general error, 1 in case of loop
* detection.
*/
int
xmlEntityCheckReference(xmlEntityPtr ent, const xmlChar *to) {
int i;
xmlDocPtr doc;
if (ent == NULL) return(-1);
if (to == NULL) return(-1);
doc = ent->doc;
if (doc == NULL) return(-1);
#ifdef DEBUG_ENT_REF
printf("xmlEntityCheckReference(%s to %s)\n", ent->name, to);
#endif
/*
* Do a recursive checking
*/
for (i = 0;i < ent->entNr;i++) {
xmlEntityPtr indir = NULL;
if (xmlStrEqual(to, ent->entTab[i]))
return(1);
switch (ent->etype) {
case XML_INTERNAL_GENERAL_ENTITY:
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
indir = xmlGetDocEntity(doc, ent->entTab[i]);
break;
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
indir = xmlGetDtdEntity(doc, ent->entTab[i]);
break;
case XML_INTERNAL_PREDEFINED_ENTITY:
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
break;
}
if (xmlEntityCheckReference(indir, to) == 1)
return(1);
}
return(0);
}
/**
* xmlEntityAddReference:
* @ent: an existing entity
* @to: the entity name it's referencing
*
* Function to register reuse of an existing entity from a (new) one
* Used to keep track of references and detect cycles (well formedness
* errors !).
*
* Returns: 0 if Okay, -1 in case of general error, 1 in case of loop
* detection.
*/
int
xmlEntityAddReference(xmlEntityPtr ent, const xmlChar *to) {
int i;
xmlDocPtr doc;
xmlEntityPtr indir = NULL;
if (ent == NULL) return(-1);
if (to == NULL) return(-1);
doc = ent->doc;
if (doc == NULL) return(-1);
#ifdef DEBUG_ENT_REF
printf("xmlEntityAddReference(%s to %s)\n", ent->name, to);
#endif
if (ent->entTab == NULL) {
ent->entNr = 0;
ent->entMax = 5;
ent->entTab = (xmlChar **) xmlMalloc(ent->entMax * sizeof(xmlChar *));
if (ent->entTab == NULL) {
fprintf(stderr, "xmlEntityAddReference: out of memory !\n");
return(-1);
}
}
for (i = 0;i < ent->entNr;i++) {
if (xmlStrEqual(to, ent->entTab[i]))
return(0);
}
/*
* Do a recursive checking
*/
switch (ent->etype) {
case XML_INTERNAL_GENERAL_ENTITY:
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
indir = xmlGetDocEntity(doc, to);
break;
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
indir = xmlGetDtdEntity(doc, to);
break;
case XML_INTERNAL_PREDEFINED_ENTITY:
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
break;
}
if ((indir != NULL) &&
(xmlEntityCheckReference(indir, ent->name) == 1))
return(1);
/*
* Add this to the list
*/
if (ent->entMax <= ent->entNr) {
ent->entMax *= 2;
ent->entTab = (xmlChar **) xmlRealloc(ent->entTab,
ent->entMax * sizeof(xmlChar *));
if (ent->entTab == NULL) {
fprintf(stderr, "xmlEntityAddReference: out of memory !\n");
return(-1);
}
}
ent->entTab[ent->entNr++] = xmlStrdup(to);
return(0);
}
#endif
/**
* xmlGetEntityFromTable:
* @table: an entity table
@ -540,43 +324,8 @@ xmlEntityAddReference(xmlEntityPtr ent, const xmlChar *to) {
* Returns A pointer to the entity structure or NULL if not found.
*/
xmlEntityPtr
xmlGetEntityFromTable(xmlEntitiesTablePtr table, const xmlChar *name,
int parameter) {
xmlEntityPtr cur;
#ifdef ENTITY_HASH_SIZE
int hash;
hash = xmlEntityComputeHash(name);
cur = table->table[hash];
while (cur != NULL) {
switch (cur->etype) {
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
if ((parameter) && (xmlStrEqual(cur->name, name)))
return(cur);
default:
if ((!parameter) && (xmlStrEqual(cur->name, name)))
return(cur);
}
cur = cur->nexte;
}
#else
int i;
for (i = 0;i < table->nb_entities;i++) {
cur = table->table[i];
switch (cur->etype) {
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
if ((parameter) && (xmlStrEqual(cur->name, name)))
return(cur);
default:
if ((!parameter) && (xmlStrEqual(cur->name, name)))
return(cur);
}
}
#endif
return(NULL);
xmlGetEntityFromTable(xmlEntitiesTablePtr table, const xmlChar *name) {
return((xmlEntityPtr) xmlHashLookup(table, name));
}
/**
@ -594,15 +343,15 @@ xmlGetParameterEntity(xmlDocPtr doc, const xmlChar *name) {
xmlEntitiesTablePtr table;
xmlEntityPtr ret;
if ((doc->intSubset != NULL) && (doc->intSubset->entities != NULL)) {
table = (xmlEntitiesTablePtr) doc->intSubset->entities;
ret = xmlGetEntityFromTable(table, name, 1);
if ((doc->intSubset != NULL) && (doc->intSubset->pentities != NULL)) {
table = (xmlEntitiesTablePtr) doc->intSubset->pentities;
ret = xmlGetEntityFromTable(table, name);
if (ret != NULL)
return(ret);
}
if ((doc->extSubset != NULL) && (doc->extSubset->entities != NULL)) {
table = (xmlEntitiesTablePtr) doc->extSubset->entities;
return(xmlGetEntityFromTable(table, name, 1));
if ((doc->extSubset != NULL) && (doc->extSubset->pentities != NULL)) {
table = (xmlEntitiesTablePtr) doc->extSubset->pentities;
return(xmlGetEntityFromTable(table, name));
}
return(NULL);
}
@ -623,7 +372,7 @@ xmlGetDtdEntity(xmlDocPtr doc, const xmlChar *name) {
if ((doc->extSubset != NULL) && (doc->extSubset->entities != NULL)) {
table = (xmlEntitiesTablePtr) doc->extSubset->entities;
return(xmlGetEntityFromTable(table, name, 0));
return(xmlGetEntityFromTable(table, name));
}
return(NULL);
}
@ -647,13 +396,13 @@ xmlGetDocEntity(xmlDocPtr doc, const xmlChar *name) {
if (doc != NULL) {
if ((doc->intSubset != NULL) && (doc->intSubset->entities != NULL)) {
table = (xmlEntitiesTablePtr) doc->intSubset->entities;
cur = xmlGetEntityFromTable(table, name, 0);
cur = xmlGetEntityFromTable(table, name);
if (cur != NULL)
return(cur);
}
if ((doc->extSubset != NULL) && (doc->extSubset->entities != NULL)) {
table = (xmlEntitiesTablePtr) doc->extSubset->entities;
cur = xmlGetEntityFromTable(table, name, 0);
cur = xmlGetEntityFromTable(table, name);
if (cur != NULL)
return(cur);
}
@ -661,7 +410,7 @@ xmlGetDocEntity(xmlDocPtr doc, const xmlChar *name) {
if (xmlPredefinedEntities == NULL)
xmlInitializePredefinedEntities();
table = xmlPredefinedEntities;
return(xmlGetEntityFromTable(table, name, 0));
return(xmlGetEntityFromTable(table, name));
}
/*
@ -1117,39 +866,7 @@ xmlEncodeSpecialChars(xmlDocPtr doc, const xmlChar *input) {
*/
xmlEntitiesTablePtr
xmlCreateEntitiesTable(void) {
xmlEntitiesTablePtr ret;
ret = (xmlEntitiesTablePtr)
xmlMalloc(sizeof(xmlEntitiesTable));
if (ret == NULL) {
fprintf(stderr, "xmlCreateEntitiesTable : xmlMalloc(%ld) failed\n",
(long)sizeof(xmlEntitiesTable));
return(NULL);
}
ret->nb_entities = 0;
#ifdef ENTITY_HASH_SIZE
ret->max_entities = ENTITY_HASH_SIZE;
ret->table = (xmlEntityPtr *)
xmlMalloc(ret->max_entities * sizeof(xmlEntityPtr));
if (ret == NULL) {
fprintf(stderr, "xmlCreateEntitiesTable : xmlMalloc(%ld) failed\n",
ret->max_entities * (long)sizeof(xmlEntityPtr));
xmlFree(ret);
return(NULL);
}
memset(ret->table, 0, ret->max_entities * sizeof(xmlEntityPtr));
#else
ret->max_entities = XML_MIN_ENTITIES_TABLE;
ret->table = (xmlEntityPtr *)
xmlMalloc(ret->max_entities * sizeof(xmlEntityPtr));
if (ret == NULL) {
fprintf(stderr, "xmlCreateEntitiesTable : xmlMalloc(%ld) failed\n",
ret->max_entities * (long)sizeof(xmlEntityPtr));
xmlFree(ret);
return(NULL);
}
#endif
return(ret);
return((xmlEntitiesTablePtr) xmlHashCreate(0));
}
/**
@ -1160,29 +877,7 @@ xmlCreateEntitiesTable(void) {
*/
void
xmlFreeEntitiesTable(xmlEntitiesTablePtr table) {
int i;
#ifdef ENTITY_HASH_SIZE
xmlEntityPtr cur, next;
#endif
if (table == NULL) return;
#ifdef ENTITY_HASH_SIZE
for (i = 0;i < ENTITY_HASH_SIZE;i++) {
cur = table->table[i];
while (cur != NULL) {
next = cur->nexte;
xmlFreeEntity(cur);
cur = next;
}
}
#else
for (i = 0;i < table->nb_entities;i++) {
xmlFreeEntity(table->table[i]);
}
#endif
xmlFree(table->table);
xmlFree(table);
xmlHashFree(table, (xmlHashDeallocator) xmlFreeEntity);
}
/**
@ -1229,50 +924,7 @@ xmlCopyEntity(xmlEntityPtr ent) {
*/
xmlEntitiesTablePtr
xmlCopyEntitiesTable(xmlEntitiesTablePtr table) {
xmlEntitiesTablePtr ret;
xmlEntityPtr cur, ent;
int i;
ret = (xmlEntitiesTablePtr) xmlMalloc(sizeof(xmlEntitiesTable));
if (ret == NULL) {
fprintf(stderr, "xmlCopyEntitiesTable: out of memory !\n");
return(NULL);
}
#ifdef ENTITY_HASH_SIZE
ret->table = (xmlEntityPtr *) xmlMalloc(ENTITY_HASH_SIZE *
sizeof(xmlEntityPtr));
if (ret->table == NULL) {
fprintf(stderr, "xmlCopyEntitiesTable: out of memory !\n");
xmlFree(ret);
return(NULL);
}
#else
ret->table = (xmlEntityPtr *) xmlMalloc(table->max_entities *
sizeof(xmlEntityPtr));
if (ret->table == NULL) {
fprintf(stderr, "xmlCopyEntitiesTable: out of memory !\n");
xmlFree(ret);
return(NULL);
}
#endif
ret->max_entities = table->max_entities;
ret->nb_entities = table->nb_entities;
for (i = 0;i < ret->nb_entities;i++) {
ent = table->table[i];
if (ent == NULL)
cur = NULL;
else
cur = xmlCopyEntity(ent);
ret->table[i] = cur;
#ifdef ENTITY_HASH_SIZE
ent = ent->nexte;
while ((ent != NULL) && (cur != NULL)) {
cur->nexte = xmlCopyEntity(ent);
cur = cur->nexte;
}
#endif
}
return(ret);
return(xmlHashCopy(table, (xmlHashCopier) xmlCopyEntity));
}
/**
@ -1370,23 +1022,5 @@ xmlDumpEntityDecl(xmlBufferPtr buf, xmlEntityPtr ent) {
*/
void
xmlDumpEntitiesTable(xmlBufferPtr buf, xmlEntitiesTablePtr table) {
int i;
xmlEntityPtr cur;
if (table == NULL) return;
#ifdef ENTITY_HASH_SIZE
for (i = 0;i < ENTITY_HASH_SIZE;i++) {
cur = table->table[i];
while (cur != NULL) {
xmlDumpEntityDecl(buf, cur);
cur = cur->nexte;
}
}
#else
for (i = 0;i < table->nb_entities;i++) {
cur = table->table[i];
xmlDumpEntityDecl(buf, cur);
}
#endif
xmlHashScan(table, (xmlHashScanner)xmlDumpEntityDecl, buf);
}