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malloc-fail: Handle malloc failures in xmlSchemaInitTypes
Note that this changes the return value of public function xmlSchemaInitTypes from void to int. This shouldn't break the ABI on most platforms. Found when investigating #500.
This commit is contained in:
Nick Wellnhofer
parent
64b76f8163
commit
f8efa589e8
@ -30,7 +30,7 @@ typedef enum {
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XML_SCHEMA_WHITESPACE_COLLAPSE = 3
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} xmlSchemaWhitespaceValueType;
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XMLPUBFUN void
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XMLPUBFUN int
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xmlSchemaInitTypes (void);
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XML_DEPRECATED
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XMLPUBFUN void
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@ -21457,7 +21457,8 @@ xmlSchemaParse(xmlSchemaParserCtxtPtr ctxt)
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* the API; i.e. not automatically by the validated instance document.
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*/
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xmlSchemaInitTypes();
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if (xmlSchemaInitTypes() < 0)
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return (NULL);
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if (ctxt == NULL)
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return (NULL);
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@ -385,18 +385,61 @@ xmlSchemaAddParticle(void)
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return (ret);
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}
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static void
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xmlSchemaFreeTypeEntry(void *type, const xmlChar *name ATTRIBUTE_UNUSED) {
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xmlSchemaFreeType((xmlSchemaTypePtr) type);
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}
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/**
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* xmlSchemaCleanupTypesInternal:
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*
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* Cleanup the default XML Schemas type library
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*/
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static void
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xmlSchemaCleanupTypesInternal(void) {
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xmlSchemaParticlePtr particle;
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/*
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* Free xs:anyType.
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*/
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if (xmlSchemaTypeAnyTypeDef != NULL) {
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/* Attribute wildcard. */
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xmlSchemaFreeWildcard(xmlSchemaTypeAnyTypeDef->attributeWildcard);
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/* Content type. */
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particle = (xmlSchemaParticlePtr) xmlSchemaTypeAnyTypeDef->subtypes;
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/* Wildcard. */
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xmlSchemaFreeWildcard((xmlSchemaWildcardPtr)
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particle->children->children->children);
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xmlFree((xmlSchemaParticlePtr) particle->children->children);
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/* Sequence model group. */
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xmlFree((xmlSchemaModelGroupPtr) particle->children);
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xmlFree((xmlSchemaParticlePtr) particle);
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xmlSchemaTypeAnyTypeDef->subtypes = NULL;
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xmlSchemaTypeAnyTypeDef = NULL;
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}
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xmlHashFree(xmlSchemaTypesBank, xmlSchemaFreeTypeEntry);
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xmlSchemaTypesBank = NULL;
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/* Note that the xmlSchemaType*Def pointers aren't set to NULL. */
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}
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/*
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* xmlSchemaInitTypes:
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*
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* Initialize the default XML Schemas type library
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*
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* Returns 0 on success, -1 on error.
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*/
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void
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int
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xmlSchemaInitTypes(void)
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{
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if (xmlSchemaTypesInitialized != 0)
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return;
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return (0);
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xmlSchemaTypesBank = xmlHashCreate(40);
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if (xmlSchemaTypesBank == NULL) {
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xmlSchemaTypeErrMemory(NULL, NULL);
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goto error;
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}
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/*
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* 3.4.7 Built-in Complex Type Definition
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@ -404,10 +447,8 @@ xmlSchemaInitTypes(void)
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xmlSchemaTypeAnyTypeDef = xmlSchemaInitBasicType("anyType",
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XML_SCHEMAS_ANYTYPE,
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NULL);
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if (xmlSchemaTypeAnyTypeDef == NULL) {
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xmlSchemaTypeErrMemory(NULL, NULL);
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return;
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}
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if (xmlSchemaTypeAnyTypeDef == NULL)
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goto error;
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xmlSchemaTypeAnyTypeDef->baseType = xmlSchemaTypeAnyTypeDef;
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xmlSchemaTypeAnyTypeDef->contentType = XML_SCHEMA_CONTENT_MIXED;
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/*
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@ -421,14 +462,14 @@ xmlSchemaInitTypes(void)
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/* First particle. */
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particle = xmlSchemaAddParticle();
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if (particle == NULL)
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return;
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goto error;
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xmlSchemaTypeAnyTypeDef->subtypes = (xmlSchemaTypePtr) particle;
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/* Sequence model group. */
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sequence = (xmlSchemaModelGroupPtr)
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xmlMalloc(sizeof(xmlSchemaModelGroup));
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if (sequence == NULL) {
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xmlSchemaTypeErrMemory(NULL, "allocating model group component");
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return;
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goto error;
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}
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memset(sequence, 0, sizeof(xmlSchemaModelGroup));
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sequence->type = XML_SCHEMA_TYPE_SEQUENCE;
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@ -436,7 +477,7 @@ xmlSchemaInitTypes(void)
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/* Second particle. */
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particle = xmlSchemaAddParticle();
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if (particle == NULL)
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return;
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goto error;
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particle->minOccurs = 0;
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particle->maxOccurs = UNBOUNDED;
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sequence->children = (xmlSchemaTreeItemPtr) particle;
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@ -444,7 +485,7 @@ xmlSchemaInitTypes(void)
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wild = (xmlSchemaWildcardPtr) xmlMalloc(sizeof(xmlSchemaWildcard));
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if (wild == NULL) {
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xmlSchemaTypeErrMemory(NULL, "allocating wildcard component");
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return;
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goto error;
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}
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memset(wild, 0, sizeof(xmlSchemaWildcard));
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wild->type = XML_SCHEMA_TYPE_ANY;
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@ -458,7 +499,7 @@ xmlSchemaInitTypes(void)
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if (wild == NULL) {
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xmlSchemaTypeErrMemory(NULL, "could not create an attribute "
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"wildcard on anyType");
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return;
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goto error;
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}
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memset(wild, 0, sizeof(xmlSchemaWildcard));
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wild->any = 1;
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@ -468,66 +509,106 @@ xmlSchemaInitTypes(void)
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xmlSchemaTypeAnySimpleTypeDef = xmlSchemaInitBasicType("anySimpleType",
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XML_SCHEMAS_ANYSIMPLETYPE,
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xmlSchemaTypeAnyTypeDef);
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if (xmlSchemaTypeAnySimpleTypeDef == NULL)
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goto error;
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/*
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* primitive datatypes
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*/
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xmlSchemaTypeStringDef = xmlSchemaInitBasicType("string",
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XML_SCHEMAS_STRING,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeStringDef == NULL)
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goto error;
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xmlSchemaTypeDecimalDef = xmlSchemaInitBasicType("decimal",
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XML_SCHEMAS_DECIMAL,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeDecimalDef == NULL)
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goto error;
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xmlSchemaTypeDateDef = xmlSchemaInitBasicType("date",
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XML_SCHEMAS_DATE,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeDateDef == NULL)
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goto error;
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xmlSchemaTypeDatetimeDef = xmlSchemaInitBasicType("dateTime",
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XML_SCHEMAS_DATETIME,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeDatetimeDef == NULL)
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goto error;
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xmlSchemaTypeTimeDef = xmlSchemaInitBasicType("time",
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XML_SCHEMAS_TIME,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeTimeDef == NULL)
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goto error;
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xmlSchemaTypeGYearDef = xmlSchemaInitBasicType("gYear",
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XML_SCHEMAS_GYEAR,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeGYearDef == NULL)
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goto error;
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xmlSchemaTypeGYearMonthDef = xmlSchemaInitBasicType("gYearMonth",
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XML_SCHEMAS_GYEARMONTH,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeGYearMonthDef == NULL)
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goto error;
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xmlSchemaTypeGMonthDef = xmlSchemaInitBasicType("gMonth",
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XML_SCHEMAS_GMONTH,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeGMonthDef == NULL)
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goto error;
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xmlSchemaTypeGMonthDayDef = xmlSchemaInitBasicType("gMonthDay",
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XML_SCHEMAS_GMONTHDAY,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeGMonthDayDef == NULL)
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goto error;
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xmlSchemaTypeGDayDef = xmlSchemaInitBasicType("gDay",
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XML_SCHEMAS_GDAY,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeGDayDef == NULL)
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goto error;
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xmlSchemaTypeDurationDef = xmlSchemaInitBasicType("duration",
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XML_SCHEMAS_DURATION,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeDurationDef == NULL)
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goto error;
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xmlSchemaTypeFloatDef = xmlSchemaInitBasicType("float",
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XML_SCHEMAS_FLOAT,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeFloatDef == NULL)
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goto error;
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xmlSchemaTypeDoubleDef = xmlSchemaInitBasicType("double",
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XML_SCHEMAS_DOUBLE,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeDoubleDef == NULL)
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goto error;
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xmlSchemaTypeBooleanDef = xmlSchemaInitBasicType("boolean",
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XML_SCHEMAS_BOOLEAN,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeBooleanDef == NULL)
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goto error;
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xmlSchemaTypeAnyURIDef = xmlSchemaInitBasicType("anyURI",
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XML_SCHEMAS_ANYURI,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeAnyURIDef == NULL)
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goto error;
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xmlSchemaTypeHexBinaryDef = xmlSchemaInitBasicType("hexBinary",
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XML_SCHEMAS_HEXBINARY,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeHexBinaryDef == NULL)
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goto error;
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xmlSchemaTypeBase64BinaryDef
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= xmlSchemaInitBasicType("base64Binary", XML_SCHEMAS_BASE64BINARY,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeBase64BinaryDef == NULL)
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goto error;
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xmlSchemaTypeNotationDef = xmlSchemaInitBasicType("NOTATION",
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XML_SCHEMAS_NOTATION,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeNotationDef == NULL)
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goto error;
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xmlSchemaTypeQNameDef = xmlSchemaInitBasicType("QName",
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XML_SCHEMAS_QNAME,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeQNameDef == NULL)
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goto error;
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/*
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* derived datatypes
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@ -535,69 +616,113 @@ xmlSchemaInitTypes(void)
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xmlSchemaTypeIntegerDef = xmlSchemaInitBasicType("integer",
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XML_SCHEMAS_INTEGER,
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xmlSchemaTypeDecimalDef);
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if (xmlSchemaTypeIntegerDef == NULL)
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goto error;
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xmlSchemaTypeNonPositiveIntegerDef =
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xmlSchemaInitBasicType("nonPositiveInteger",
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XML_SCHEMAS_NPINTEGER,
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xmlSchemaTypeIntegerDef);
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if (xmlSchemaTypeNonPositiveIntegerDef == NULL)
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goto error;
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xmlSchemaTypeNegativeIntegerDef =
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xmlSchemaInitBasicType("negativeInteger", XML_SCHEMAS_NINTEGER,
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xmlSchemaTypeNonPositiveIntegerDef);
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if (xmlSchemaTypeNegativeIntegerDef == NULL)
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goto error;
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xmlSchemaTypeLongDef =
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xmlSchemaInitBasicType("long", XML_SCHEMAS_LONG,
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xmlSchemaTypeIntegerDef);
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if (xmlSchemaTypeLongDef == NULL)
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goto error;
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xmlSchemaTypeIntDef = xmlSchemaInitBasicType("int", XML_SCHEMAS_INT,
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xmlSchemaTypeLongDef);
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if (xmlSchemaTypeIntDef == NULL)
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goto error;
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xmlSchemaTypeShortDef = xmlSchemaInitBasicType("short",
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XML_SCHEMAS_SHORT,
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xmlSchemaTypeIntDef);
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if (xmlSchemaTypeShortDef == NULL)
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goto error;
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xmlSchemaTypeByteDef = xmlSchemaInitBasicType("byte",
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XML_SCHEMAS_BYTE,
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xmlSchemaTypeShortDef);
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if (xmlSchemaTypeByteDef == NULL)
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goto error;
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xmlSchemaTypeNonNegativeIntegerDef =
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xmlSchemaInitBasicType("nonNegativeInteger",
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XML_SCHEMAS_NNINTEGER,
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xmlSchemaTypeIntegerDef);
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if (xmlSchemaTypeNonNegativeIntegerDef == NULL)
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goto error;
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xmlSchemaTypeUnsignedLongDef =
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xmlSchemaInitBasicType("unsignedLong", XML_SCHEMAS_ULONG,
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xmlSchemaTypeNonNegativeIntegerDef);
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if (xmlSchemaTypeUnsignedLongDef == NULL)
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goto error;
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xmlSchemaTypeUnsignedIntDef =
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xmlSchemaInitBasicType("unsignedInt", XML_SCHEMAS_UINT,
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xmlSchemaTypeUnsignedLongDef);
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if (xmlSchemaTypeUnsignedIntDef == NULL)
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goto error;
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xmlSchemaTypeUnsignedShortDef =
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xmlSchemaInitBasicType("unsignedShort", XML_SCHEMAS_USHORT,
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xmlSchemaTypeUnsignedIntDef);
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if (xmlSchemaTypeUnsignedShortDef == NULL)
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goto error;
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xmlSchemaTypeUnsignedByteDef =
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xmlSchemaInitBasicType("unsignedByte", XML_SCHEMAS_UBYTE,
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xmlSchemaTypeUnsignedShortDef);
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if (xmlSchemaTypeUnsignedByteDef == NULL)
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goto error;
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xmlSchemaTypePositiveIntegerDef =
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xmlSchemaInitBasicType("positiveInteger", XML_SCHEMAS_PINTEGER,
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xmlSchemaTypeNonNegativeIntegerDef);
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if (xmlSchemaTypePositiveIntegerDef == NULL)
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goto error;
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xmlSchemaTypeNormStringDef = xmlSchemaInitBasicType("normalizedString",
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XML_SCHEMAS_NORMSTRING,
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xmlSchemaTypeStringDef);
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if (xmlSchemaTypeNormStringDef == NULL)
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goto error;
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xmlSchemaTypeTokenDef = xmlSchemaInitBasicType("token",
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XML_SCHEMAS_TOKEN,
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xmlSchemaTypeNormStringDef);
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if (xmlSchemaTypeTokenDef == NULL)
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goto error;
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xmlSchemaTypeLanguageDef = xmlSchemaInitBasicType("language",
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XML_SCHEMAS_LANGUAGE,
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xmlSchemaTypeTokenDef);
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if (xmlSchemaTypeLanguageDef == NULL)
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goto error;
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xmlSchemaTypeNameDef = xmlSchemaInitBasicType("Name",
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XML_SCHEMAS_NAME,
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xmlSchemaTypeTokenDef);
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if (xmlSchemaTypeNameDef == NULL)
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goto error;
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xmlSchemaTypeNmtokenDef = xmlSchemaInitBasicType("NMTOKEN",
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XML_SCHEMAS_NMTOKEN,
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xmlSchemaTypeTokenDef);
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if (xmlSchemaTypeNmtokenDef == NULL)
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goto error;
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xmlSchemaTypeNCNameDef = xmlSchemaInitBasicType("NCName",
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XML_SCHEMAS_NCNAME,
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xmlSchemaTypeNameDef);
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if (xmlSchemaTypeNCNameDef == NULL)
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goto error;
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xmlSchemaTypeIdDef = xmlSchemaInitBasicType("ID", XML_SCHEMAS_ID,
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xmlSchemaTypeNCNameDef);
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if (xmlSchemaTypeIdDef == NULL)
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goto error;
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xmlSchemaTypeIdrefDef = xmlSchemaInitBasicType("IDREF",
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XML_SCHEMAS_IDREF,
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xmlSchemaTypeNCNameDef);
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if (xmlSchemaTypeIdrefDef == NULL)
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goto error;
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xmlSchemaTypeEntityDef = xmlSchemaInitBasicType("ENTITY",
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XML_SCHEMAS_ENTITY,
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xmlSchemaTypeNCNameDef);
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if (xmlSchemaTypeEntityDef == NULL)
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goto error;
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/*
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* Derived list types.
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*/
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@ -605,25 +730,31 @@ xmlSchemaInitTypes(void)
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xmlSchemaTypeEntitiesDef = xmlSchemaInitBasicType("ENTITIES",
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XML_SCHEMAS_ENTITIES,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeEntitiesDef == NULL)
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goto error;
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xmlSchemaTypeEntitiesDef->subtypes = xmlSchemaTypeEntityDef;
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/* IDREFS */
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xmlSchemaTypeIdrefsDef = xmlSchemaInitBasicType("IDREFS",
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XML_SCHEMAS_IDREFS,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeIdrefsDef == NULL)
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goto error;
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xmlSchemaTypeIdrefsDef->subtypes = xmlSchemaTypeIdrefDef;
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/* NMTOKENS */
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xmlSchemaTypeNmtokensDef = xmlSchemaInitBasicType("NMTOKENS",
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XML_SCHEMAS_NMTOKENS,
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xmlSchemaTypeAnySimpleTypeDef);
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if (xmlSchemaTypeNmtokensDef == NULL)
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goto error;
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xmlSchemaTypeNmtokensDef->subtypes = xmlSchemaTypeNmtokenDef;
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xmlSchemaTypesInitialized = 1;
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}
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return (0);
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static void
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xmlSchemaFreeTypeEntry(void *type, const xmlChar *name ATTRIBUTE_UNUSED) {
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xmlSchemaFreeType((xmlSchemaTypePtr) type);
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error:
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xmlSchemaCleanupTypesInternal();
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return (-1);
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}
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/**
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@ -632,34 +763,16 @@ xmlSchemaFreeTypeEntry(void *type, const xmlChar *name ATTRIBUTE_UNUSED) {
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* DEPRECATED: This function will be made private. Call xmlCleanupParser
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* to free global state but see the warnings there. xmlCleanupParser
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* should be only called once at program exit. In most cases, you don't
|
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* have call cleanup functions at all.
|
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* have to call cleanup functions at all.
|
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*
|
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* Cleanup the default XML Schemas type library
|
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*/
|
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void
|
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xmlSchemaCleanupTypes(void) {
|
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if (xmlSchemaTypesInitialized == 0)
|
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return;
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/*
|
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* Free xs:anyType.
|
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*/
|
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{
|
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xmlSchemaParticlePtr particle;
|
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/* Attribute wildcard. */
|
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xmlSchemaFreeWildcard(xmlSchemaTypeAnyTypeDef->attributeWildcard);
|
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/* Content type. */
|
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particle = (xmlSchemaParticlePtr) xmlSchemaTypeAnyTypeDef->subtypes;
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/* Wildcard. */
|
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xmlSchemaFreeWildcard((xmlSchemaWildcardPtr)
|
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particle->children->children->children);
|
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xmlFree((xmlSchemaParticlePtr) particle->children->children);
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/* Sequence model group. */
|
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xmlFree((xmlSchemaModelGroupPtr) particle->children);
|
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xmlFree((xmlSchemaParticlePtr) particle);
|
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xmlSchemaTypeAnyTypeDef->subtypes = NULL;
|
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if (xmlSchemaTypesInitialized != 0) {
|
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xmlSchemaCleanupTypesInternal();
|
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xmlSchemaTypesInitialized = 0;
|
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}
|
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xmlHashFree(xmlSchemaTypesBank, xmlSchemaFreeTypeEntry);
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xmlSchemaTypesInitialized = 0;
|
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}
|
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|
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/**
|
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@ -754,8 +867,9 @@ xmlSchemaIsBuiltInTypeFacet(xmlSchemaTypePtr type, int facetType)
|
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xmlSchemaTypePtr
|
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xmlSchemaGetBuiltInType(xmlSchemaValType type)
|
||||
{
|
||||
if (xmlSchemaTypesInitialized == 0)
|
||||
xmlSchemaInitTypes();
|
||||
if ((xmlSchemaTypesInitialized == 0) &&
|
||||
(xmlSchemaInitTypes() < 0))
|
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return (NULL);
|
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switch (type) {
|
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|
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case XML_SCHEMAS_ANYSIMPLETYPE:
|
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@ -1087,8 +1201,9 @@ xmlSchemaFreeValue(xmlSchemaValPtr value) {
|
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*/
|
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xmlSchemaTypePtr
|
||||
xmlSchemaGetPredefinedType(const xmlChar *name, const xmlChar *ns) {
|
||||
if (xmlSchemaTypesInitialized == 0)
|
||||
xmlSchemaInitTypes();
|
||||
if ((xmlSchemaTypesInitialized == 0) &&
|
||||
(xmlSchemaInitTypes() < 0))
|
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return (NULL);
|
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if (name == NULL)
|
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return(NULL);
|
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return((xmlSchemaTypePtr) xmlHashLookup2(xmlSchemaTypesBank, name, ns));
|
||||
@ -2257,8 +2372,9 @@ xmlSchemaValAtomicType(xmlSchemaTypePtr type, const xmlChar * value,
|
||||
xmlChar *norm = NULL;
|
||||
int ret = 0;
|
||||
|
||||
if (xmlSchemaTypesInitialized == 0)
|
||||
xmlSchemaInitTypes();
|
||||
if ((xmlSchemaTypesInitialized == 0) &&
|
||||
(xmlSchemaInitTypes() < 0))
|
||||
return (-1);
|
||||
if (type == NULL)
|
||||
return (-1);
|
||||
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user