/
xmlschemas.c
5764 lines (5376 loc) · 161 KB
/
xmlschemas.c
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/*
* schemas.c : implementation of the XML Schema handling and
* schema validity checking
*
* See Copyright for the status of this software.
*
* Daniel Veillard <veillard@redhat.com>
*/
#define IN_LIBXML
#include "libxml.h"
#ifdef LIBXML_SCHEMAS_ENABLED
#include <string.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/parserInternals.h>
#include <libxml/hash.h>
#include <libxml/uri.h>
#include <libxml/xmlschemas.h>
#include <libxml/schemasInternals.h>
#include <libxml/xmlschemastypes.h>
#include <libxml/xmlautomata.h>
#include <libxml/xmlregexp.h>
/* #define DEBUG 1 */ /* very verbose output */
/* #define DEBUG_CONTENT 1 */
/* #define DEBUG_TYPE 1 */
/* #define DEBUG_CONTENT_REGEXP 1 */
/* #define DEBUG_AUTOMATA 1 */
#define UNBOUNDED (1 << 30)
#define TODO \
xmlGenericError(xmlGenericErrorContext, \
"Unimplemented block at %s:%d\n", \
__FILE__, __LINE__);
#define XML_SCHEMAS_DEFAULT_NAMESPACE (const xmlChar *)"the default namespace"
/*
* The XML Schemas namespaces
*/
static const xmlChar *xmlSchemaNs = (const xmlChar *)
"http://www.w3.org/2001/XMLSchema";
static const xmlChar *xmlSchemaInstanceNs = (const xmlChar *)
"http://www.w3.org/2001/XMLSchema-instance";
#define IS_SCHEMA(node, type) \
((node != NULL) && (node->ns != NULL) && \
(xmlStrEqual(node->name, (const xmlChar *) type)) && \
(xmlStrEqual(node->ns->href, xmlSchemaNs)))
#define XML_SCHEMAS_PARSE_ERROR 1
struct _xmlSchemaParserCtxt {
void *userData; /* user specific data block */
xmlSchemaValidityErrorFunc error; /* the callback in case of errors */
xmlSchemaValidityWarningFunc warning;/* the callback in case of warning */
xmlSchemaValidError err;
int nberrors;
xmlSchemaPtr schema; /* The schema in use */
xmlChar *container; /* the current element, group, ... */
int counter;
xmlChar *URL;
xmlDocPtr doc;
const char *buffer;
int size;
/*
* Used to build complex element content models
*/
xmlAutomataPtr am;
xmlAutomataStatePtr start;
xmlAutomataStatePtr end;
xmlAutomataStatePtr state;
};
#define XML_SCHEMAS_ATTR_UNKNOWN 1
#define XML_SCHEMAS_ATTR_CHECKED 2
typedef struct _xmlSchemaAttrState xmlSchemaAttrState;
typedef xmlSchemaAttrState *xmlSchemaAttrStatePtr;
struct _xmlSchemaAttrState {
xmlAttrPtr attr;
int state;
};
/**
* xmlSchemaValidCtxt:
*
* A Schemas validation context
*/
struct _xmlSchemaValidCtxt {
void *userData; /* user specific data block */
xmlSchemaValidityErrorFunc error; /* the callback in case of errors */
xmlSchemaValidityWarningFunc warning;/* the callback in case of warning */
xmlSchemaPtr schema; /* The schema in use */
xmlDocPtr doc;
xmlParserInputBufferPtr input;
xmlCharEncoding enc;
xmlSAXHandlerPtr sax;
void *user_data;
xmlDocPtr myDoc;
int err;
int nberrors;
xmlNodePtr node;
xmlNodePtr cur;
xmlSchemaTypePtr type;
xmlRegExecCtxtPtr regexp;
xmlSchemaValPtr value;
int attrNr;
int attrBase;
int attrMax;
xmlSchemaAttrStatePtr attr;
};
/************************************************************************
* *
* Some predeclarations *
* *
************************************************************************/
static int xmlSchemaValidateSimpleValue(xmlSchemaValidCtxtPtr ctxt,
xmlSchemaTypePtr type,
xmlChar *value);
/************************************************************************
* *
* Allocation functions *
* *
************************************************************************/
/**
* xmlSchemaNewSchema:
* @ctxt: a schema validation context (optional)
*
* Allocate a new Schema structure.
*
* Returns the newly allocated structure or NULL in case or error
*/
static xmlSchemaPtr
xmlSchemaNewSchema(xmlSchemaParserCtxtPtr ctxt)
{
xmlSchemaPtr ret;
ret = (xmlSchemaPtr) xmlMalloc(sizeof(xmlSchema));
if (ret == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Out of memory\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlSchema));
return (ret);
}
/**
* xmlSchemaNewFacet:
*
* Allocate a new Facet structure.
*
* Returns the newly allocated structure or NULL in case or error
*/
xmlSchemaFacetPtr
xmlSchemaNewFacet(void)
{
xmlSchemaFacetPtr ret;
ret = (xmlSchemaFacetPtr) xmlMalloc(sizeof(xmlSchemaFacet));
if (ret == NULL) {
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaFacet));
return (ret);
}
/**
* xmlSchemaNewAnnot:
* @ctxt: a schema validation context (optional)
* @node: a node
*
* Allocate a new annotation structure.
*
* Returns the newly allocated structure or NULL in case or error
*/
static xmlSchemaAnnotPtr
xmlSchemaNewAnnot(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlSchemaAnnotPtr ret;
ret = (xmlSchemaAnnotPtr) xmlMalloc(sizeof(xmlSchemaAnnot));
if (ret == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Out of memory\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaAnnot));
ret->content = node;
return (ret);
}
/**
* xmlSchemaFreeAnnot:
* @annot: a schema type structure
*
* Deallocate a annotation structure
*/
static void
xmlSchemaFreeAnnot(xmlSchemaAnnotPtr annot)
{
if (annot == NULL)
return;
xmlFree(annot);
}
/**
* xmlSchemaFreeNotation:
* @schema: a schema notation structure
*
* Deallocate a Schema Notation structure.
*/
static void
xmlSchemaFreeNotation(xmlSchemaNotationPtr nota)
{
if (nota == NULL)
return;
if (nota->name != NULL)
xmlFree((xmlChar *) nota->name);
xmlFree(nota);
}
/**
* xmlSchemaFreeAttribute:
* @schema: a schema attribute structure
*
* Deallocate a Schema Attribute structure.
*/
static void
xmlSchemaFreeAttribute(xmlSchemaAttributePtr attr)
{
if (attr == NULL)
return;
if (attr->name != NULL)
xmlFree((xmlChar *) attr->name);
if (attr->ref != NULL)
xmlFree((xmlChar *) attr->ref);
if (attr->refNs != NULL)
xmlFree((xmlChar *) attr->refNs);
if (attr->typeName != NULL)
xmlFree((xmlChar *) attr->typeName);
if (attr->typeNs != NULL)
xmlFree((xmlChar *) attr->typeNs);
xmlFree(attr);
}
/**
* xmlSchemaFreeAttributeGroup:
* @schema: a schema attribute group structure
*
* Deallocate a Schema Attribute Group structure.
*/
static void
xmlSchemaFreeAttributeGroup(xmlSchemaAttributeGroupPtr attr)
{
if (attr == NULL)
return;
if (attr->name != NULL)
xmlFree((xmlChar *) attr->name);
if (attr->ref != NULL)
xmlFree((xmlChar *) attr->ref);
if (attr->refNs != NULL)
xmlFree((xmlChar *) attr->refNs);
xmlFree(attr);
}
/**
* xmlSchemaFreeElement:
* @schema: a schema element structure
*
* Deallocate a Schema Element structure.
*/
static void
xmlSchemaFreeElement(xmlSchemaElementPtr elem)
{
if (elem == NULL)
return;
if (elem->name != NULL)
xmlFree((xmlChar *) elem->name);
if (elem->namedType != NULL)
xmlFree((xmlChar *) elem->namedType);
if (elem->namedTypeNs != NULL)
xmlFree((xmlChar *) elem->namedTypeNs);
if (elem->ref != NULL)
xmlFree((xmlChar *) elem->ref);
if (elem->refNs != NULL)
xmlFree((xmlChar *) elem->refNs);
if (elem->annot != NULL)
xmlSchemaFreeAnnot(elem->annot);
if (elem->contModel != NULL)
xmlRegFreeRegexp(elem->contModel);
xmlFree(elem);
}
/**
* xmlSchemaFreeFacet:
* @facet: a schema facet structure
*
* Deallocate a Schema Facet structure.
*/
void
xmlSchemaFreeFacet(xmlSchemaFacetPtr facet)
{
if (facet == NULL)
return;
if (facet->value != NULL)
xmlFree((xmlChar *) facet->value);
if (facet->id != NULL)
xmlFree((xmlChar *) facet->id);
if (facet->val != NULL)
xmlSchemaFreeValue(facet->val);
if (facet->regexp != NULL)
xmlRegFreeRegexp(facet->regexp);
if (facet->annot != NULL)
xmlSchemaFreeAnnot(facet->annot);
xmlFree(facet);
}
/**
* xmlSchemaFreeType:
* @type: a schema type structure
*
* Deallocate a Schema Type structure.
*/
void
xmlSchemaFreeType(xmlSchemaTypePtr type)
{
if (type == NULL)
return;
if (type->name != NULL)
xmlFree((xmlChar *) type->name);
if (type->base != NULL)
xmlFree((xmlChar *) type->base);
if (type->baseNs != NULL)
xmlFree((xmlChar *) type->baseNs);
if (type->annot != NULL)
xmlSchemaFreeAnnot(type->annot);
if (type->facets != NULL) {
xmlSchemaFacetPtr facet, next;
facet = type->facets;
while (facet != NULL) {
next = facet->next;
xmlSchemaFreeFacet(facet);
facet = next;
}
}
xmlFree(type);
}
/**
* xmlSchemaFree:
* @schema: a schema structure
*
* Deallocate a Schema structure.
*/
void
xmlSchemaFree(xmlSchemaPtr schema)
{
if (schema == NULL)
return;
if (schema->id != NULL)
xmlFree((xmlChar *) schema->id);
if (schema->targetNamespace != NULL)
xmlFree((xmlChar *) schema->targetNamespace);
if (schema->name != NULL)
xmlFree((xmlChar *) schema->name);
if (schema->notaDecl != NULL)
xmlHashFree(schema->notaDecl,
(xmlHashDeallocator) xmlSchemaFreeNotation);
if (schema->attrDecl != NULL)
xmlHashFree(schema->attrDecl,
(xmlHashDeallocator) xmlSchemaFreeAttribute);
if (schema->attrgrpDecl != NULL)
xmlHashFree(schema->attrgrpDecl,
(xmlHashDeallocator) xmlSchemaFreeAttributeGroup);
if (schema->elemDecl != NULL)
xmlHashFree(schema->elemDecl,
(xmlHashDeallocator) xmlSchemaFreeElement);
if (schema->typeDecl != NULL)
xmlHashFree(schema->typeDecl,
(xmlHashDeallocator) xmlSchemaFreeType);
if (schema->annot != NULL)
xmlSchemaFreeAnnot(schema->annot);
if (schema->doc != NULL)
xmlFreeDoc(schema->doc);
xmlFree(schema);
}
/************************************************************************
* *
* Error functions *
* *
************************************************************************/
/**
* xmlSchemaErrorContext:
* @ctxt: the parsing context
* @schema: the schema being built
* @node: the node being processed
* @child: the child being processed
*
* Dump a SchemaType structure
*/
static void
xmlSchemaErrorContext(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node, xmlNodePtr child)
{
int line = 0;
const xmlChar *file = NULL;
const xmlChar *name = NULL;
const char *type = "error";
if ((ctxt == NULL) || (ctxt->error == NULL))
return;
if (child != NULL)
node = child;
if (node != NULL) {
if ((node->type == XML_DOCUMENT_NODE) ||
(node->type == XML_HTML_DOCUMENT_NODE)) {
xmlDocPtr doc = (xmlDocPtr) node;
file = doc->URL;
} else {
/*
* Try to find contextual informations to report
*/
if (node->type == XML_ELEMENT_NODE) {
line = (int) node->content;
} else if ((node->prev != NULL) &&
(node->prev->type == XML_ELEMENT_NODE)) {
line = (int) node->prev->content;
} else if ((node->parent != NULL) &&
(node->parent->type == XML_ELEMENT_NODE)) {
line = (int) node->parent->content;
}
if ((node->doc != NULL) && (node->doc->URL != NULL))
file = node->doc->URL;
if (node->name != NULL)
name = node->name;
}
}
if (ctxt != NULL)
type = "compilation error";
else if (schema != NULL)
type = "runtime error";
if ((file != NULL) && (line != 0) && (name != NULL))
ctxt->error(ctxt->userData, "%s: file %s line %d element %s\n",
type, file, line, name);
else if ((file != NULL) && (name != NULL))
ctxt->error(ctxt->userData, "%s: file %s element %s\n",
type, file, name);
else if ((file != NULL) && (line != 0))
ctxt->error(ctxt->userData, "%s: file %s line %d\n", type, file, line);
else if (file != NULL)
ctxt->error(ctxt->userData, "%s: file %s\n", type, file);
else if (name != NULL)
ctxt->error(ctxt->userData, "%s: element %s\n", type, name);
else
ctxt->error(ctxt->userData, "%s\n", type);
}
/************************************************************************
* *
* Debug functions *
* *
************************************************************************/
/**
* xmlSchemaElementDump:
* @elem: an element
* @output: the file output
*
* Dump the element
*/
static void
xmlSchemaElementDump(xmlSchemaElementPtr elem, FILE * output,
const xmlChar *name ATTRIBUTE_UNUSED,
const xmlChar *context ATTRIBUTE_UNUSED,
const xmlChar *namespace ATTRIBUTE_UNUSED)
{
if (elem == NULL)
return;
fprintf(output, "Element ");
if (elem->flags & XML_SCHEMAS_ELEM_TOPLEVEL)
fprintf(output, "toplevel ");
fprintf(output, ": %s ", elem->name);
if (namespace != NULL)
fprintf(output, "namespace '%s' ", namespace);
if (elem->flags & XML_SCHEMAS_ELEM_NILLABLE)
fprintf(output, "nillable ");
if (elem->flags & XML_SCHEMAS_ELEM_GLOBAL)
fprintf(output, "global ");
if (elem->flags & XML_SCHEMAS_ELEM_DEFAULT)
fprintf(output, "default ");
if (elem->flags & XML_SCHEMAS_ELEM_FIXED)
fprintf(output, "fixed ");
if (elem->flags & XML_SCHEMAS_ELEM_ABSTRACT)
fprintf(output, "abstract ");
if (elem->flags & XML_SCHEMAS_ELEM_REF)
fprintf(output, "ref '%s' ", elem->ref);
if (elem->id != NULL)
fprintf(output, "id '%s' ", elem->id);
fprintf(output, "\n");
if ((elem->minOccurs != 1) || (elem->maxOccurs != 1)) {
fprintf(output, " ");
if (elem->minOccurs != 1)
fprintf(output, "min: %d ", elem->minOccurs);
if (elem->maxOccurs >= UNBOUNDED)
fprintf(output, "max: unbounded\n");
else if (elem->maxOccurs != 1)
fprintf(output, "max: %d\n", elem->maxOccurs);
else
fprintf(output, "\n");
}
if (elem->namedType != NULL) {
fprintf(output, " type: %s", elem->namedType);
if (elem->namedTypeNs != NULL)
fprintf(output, " ns %s\n", elem->namedTypeNs);
else
fprintf(output, "\n");
}
if (elem->substGroup != NULL) {
fprintf(output, " substitutionGroup: %s", elem->substGroup);
if (elem->substGroupNs != NULL)
fprintf(output, " ns %s\n", elem->substGroupNs);
else
fprintf(output, "\n");
}
if (elem->value != NULL)
fprintf(output, " default: %s", elem->value);
}
/**
* xmlSchemaAnnotDump:
* @output: the file output
* @annot: a annotation
*
* Dump the annotation
*/
static void
xmlSchemaAnnotDump(FILE * output, xmlSchemaAnnotPtr annot)
{
xmlChar *content;
if (annot == NULL)
return;
content = xmlNodeGetContent(annot->content);
if (content != NULL) {
fprintf(output, " Annot: %s\n", content);
xmlFree(content);
} else
fprintf(output, " Annot: empty\n");
}
/**
* xmlSchemaTypeDump:
* @output: the file output
* @type: a type structure
*
* Dump a SchemaType structure
*/
static void
xmlSchemaTypeDump(xmlSchemaTypePtr type, FILE * output)
{
if (type == NULL) {
fprintf(output, "Type: NULL\n");
return;
}
fprintf(output, "Type: ");
if (type->name != NULL)
fprintf(output, "%s, ", type->name);
else
fprintf(output, "no name");
switch (type->type) {
case XML_SCHEMA_TYPE_BASIC:
fprintf(output, "basic ");
break;
case XML_SCHEMA_TYPE_SIMPLE:
fprintf(output, "simple ");
break;
case XML_SCHEMA_TYPE_COMPLEX:
fprintf(output, "complex ");
break;
case XML_SCHEMA_TYPE_SEQUENCE:
fprintf(output, "sequence ");
break;
case XML_SCHEMA_TYPE_CHOICE:
fprintf(output, "choice ");
break;
case XML_SCHEMA_TYPE_ALL:
fprintf(output, "all ");
break;
case XML_SCHEMA_TYPE_UR:
fprintf(output, "ur ");
break;
case XML_SCHEMA_TYPE_RESTRICTION:
fprintf(output, "restriction ");
break;
case XML_SCHEMA_TYPE_EXTENSION:
fprintf(output, "extension ");
break;
default:
fprintf(output, "unknowntype%d ", type->type);
break;
}
if (type->base != NULL) {
fprintf(output, "base %s, ", type->base);
}
switch (type->contentType) {
case XML_SCHEMA_CONTENT_UNKNOWN:
fprintf(output, "unknown ");
break;
case XML_SCHEMA_CONTENT_EMPTY:
fprintf(output, "empty ");
break;
case XML_SCHEMA_CONTENT_ELEMENTS:
fprintf(output, "element ");
break;
case XML_SCHEMA_CONTENT_MIXED:
fprintf(output, "mixed ");
break;
case XML_SCHEMA_CONTENT_MIXED_OR_ELEMENTS:
fprintf(output, "mixed_or_elems ");
break;
case XML_SCHEMA_CONTENT_BASIC:
fprintf(output, "basic ");
break;
case XML_SCHEMA_CONTENT_SIMPLE:
fprintf(output, "simple ");
break;
case XML_SCHEMA_CONTENT_ANY:
fprintf(output, "any ");
break;
}
fprintf(output, "\n");
if ((type->minOccurs != 1) || (type->maxOccurs != 1)) {
fprintf(output, " ");
if (type->minOccurs != 1)
fprintf(output, "min: %d ", type->minOccurs);
if (type->maxOccurs >= UNBOUNDED)
fprintf(output, "max: unbounded\n");
else if (type->maxOccurs != 1)
fprintf(output, "max: %d\n", type->maxOccurs);
else
fprintf(output, "\n");
}
if (type->annot != NULL)
xmlSchemaAnnotDump(output, type->annot);
if (type->subtypes != NULL) {
xmlSchemaTypePtr sub = type->subtypes;
fprintf(output, " subtypes: ");
while (sub != NULL) {
fprintf(output, "%s ", sub->name);
sub = sub->next;
}
fprintf(output, "\n");
}
}
/**
* xmlSchemaDump:
* @output: the file output
* @schema: a schema structure
*
* Dump a Schema structure.
*/
void
xmlSchemaDump(FILE * output, xmlSchemaPtr schema)
{
if (schema == NULL) {
fprintf(output, "Schemas: NULL\n");
return;
}
fprintf(output, "Schemas: ");
if (schema->name != NULL)
fprintf(output, "%s, ", schema->name);
else
fprintf(output, "no name, ");
if (schema->targetNamespace != NULL)
fprintf(output, "%s", (const char *) schema->targetNamespace);
else
fprintf(output, "no target namespace");
fprintf(output, "\n");
if (schema->annot != NULL)
xmlSchemaAnnotDump(output, schema->annot);
xmlHashScan(schema->typeDecl, (xmlHashScanner) xmlSchemaTypeDump,
output);
xmlHashScanFull(schema->elemDecl,
(xmlHashScannerFull) xmlSchemaElementDump, output);
}
/************************************************************************
* *
* Parsing functions *
* *
************************************************************************/
/**
* xmlSchemaGetType:
* @schema: the schemas context
* @name: the type name
* @ns: the type namespace
*
* Lookup a type in the schemas or the predefined types
*
* Returns 1 if the string is NULL or made of blanks chars, 0 otherwise
*/
static xmlSchemaTypePtr
xmlSchemaGetType(xmlSchemaPtr schema, const xmlChar * name,
const xmlChar * namespace) {
xmlSchemaTypePtr ret;
if (name == NULL)
return(NULL);
if (schema != NULL) {
ret = xmlHashLookup2(schema->typeDecl, name, namespace);
if (ret != NULL)
return(ret);
}
ret = xmlSchemaGetPredefinedType(name, namespace);
#ifdef DEBUG
if (ret == NULL) {
if (namespace == NULL)
fprintf(stderr, "Unable to lookup type %s", name);
else
fprintf(stderr, "Unable to lookup type %s:%s", name, namespace);
}
#endif
return(ret);
}
/************************************************************************
* *
* Parsing functions *
* *
************************************************************************/
#define IS_BLANK_NODE(n) \
(((n)->type == XML_TEXT_NODE) && (xmlSchemaIsBlank((n)->content)))
/**
* xmlSchemaIsBlank:
* @str: a string
*
* Check if a string is ignorable
*
* Returns 1 if the string is NULL or made of blanks chars, 0 otherwise
*/
static int
xmlSchemaIsBlank(xmlChar *str) {
if (str == NULL)
return(1);
while (*str != 0) {
if (!(IS_BLANK(*str))) return(0);
str++;
}
return(1);
}
/**
* xmlSchemaAddNotation:
* @ctxt: a schema validation context
* @schema: the schema being built
* @name: the item name
*
* Add an XML schema Attrribute declaration
* *WARNING* this interface is highly subject to change
*
* Returns the new struture or NULL in case of error
*/
static xmlSchemaNotationPtr
xmlSchemaAddNotation(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
const xmlChar * name)
{
xmlSchemaNotationPtr ret = NULL;
int val;
if ((ctxt == NULL) || (schema == NULL) || (name == NULL))
return (NULL);
if (schema->notaDecl == NULL)
schema->notaDecl = xmlHashCreate(10);
if (schema->notaDecl == NULL)
return (NULL);
ret = (xmlSchemaNotationPtr) xmlMalloc(sizeof(xmlSchemaNotation));
if (ret == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Out of memory\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaNotation));
ret->name = xmlStrdup(name);
val = xmlHashAddEntry2(schema->notaDecl, name, schema->targetNamespace,
ret);
if (val != 0) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Could not add notation %s\n",
name);
xmlFree((char *) ret->name);
xmlFree(ret);
return (NULL);
}
return (ret);
}
/**
* xmlSchemaAddAttribute:
* @ctxt: a schema validation context
* @schema: the schema being built
* @name: the item name
* @container: the container's name
*
* Add an XML schema Attrribute declaration
* *WARNING* this interface is highly subject to change
*
* Returns the new struture or NULL in case of error
*/
static xmlSchemaAttributePtr
xmlSchemaAddAttribute(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
const xmlChar * name)
{
xmlSchemaAttributePtr ret = NULL;
int val;
if ((ctxt == NULL) || (schema == NULL) || (name == NULL))
return (NULL);
if (schema->attrDecl == NULL)
schema->attrDecl = xmlHashCreate(10);
if (schema->attrDecl == NULL)
return (NULL);
ret = (xmlSchemaAttributePtr) xmlMalloc(sizeof(xmlSchemaAttribute));
if (ret == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Out of memory\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaAttribute));
ret->name = xmlStrdup(name);
val = xmlHashAddEntry3(schema->attrDecl, name,
schema->targetNamespace, ctxt->container, ret);
if (val != 0) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Could not add attribute %s\n",
name);
xmlFree((char *) ret->name);
xmlFree(ret);
return (NULL);
}
return (ret);
}
/**
* xmlSchemaAddAttributeGroup:
* @ctxt: a schema validation context
* @schema: the schema being built
* @name: the item name
*
* Add an XML schema Attrribute Group declaration
*
* Returns the new struture or NULL in case of error
*/
static xmlSchemaAttributeGroupPtr
xmlSchemaAddAttributeGroup(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
const xmlChar * name)
{
xmlSchemaAttributeGroupPtr ret = NULL;
int val;
if ((ctxt == NULL) || (schema == NULL) || (name == NULL))
return (NULL);
if (schema->attrgrpDecl == NULL)
schema->attrgrpDecl = xmlHashCreate(10);
if (schema->attrgrpDecl == NULL)
return (NULL);
ret = (xmlSchemaAttributeGroupPtr) xmlMalloc(sizeof(xmlSchemaAttributeGroup));
if (ret == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Out of memory\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaAttributeGroup));
ret->name = xmlStrdup(name);
val = xmlHashAddEntry3(schema->attrgrpDecl, name,
schema->targetNamespace, ctxt->container, ret);
if (val != 0) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Could not add attribute group %s\n",
name);
xmlFree((char *) ret->name);
xmlFree(ret);
return (NULL);
}
return (ret);
}
/**
* xmlSchemaAddElement:
* @ctxt: a schema validation context
* @schema: the schema being built
* @name: the type name
* @namespace: the type namespace
*
* Add an XML schema Element declaration
* *WARNING* this interface is highly subject to change
*
* Returns the new struture or NULL in case of error
*/
static xmlSchemaElementPtr
xmlSchemaAddElement(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
const xmlChar * name, const xmlChar * namespace)
{
xmlSchemaElementPtr ret = NULL;
int val;
if ((ctxt == NULL) || (schema == NULL) || (name == NULL))
return (NULL);
if (schema->elemDecl == NULL)
schema->elemDecl = xmlHashCreate(10);
if (schema->elemDecl == NULL)
return (NULL);
ret = (xmlSchemaElementPtr) xmlMalloc(sizeof(xmlSchemaElement));
if (ret == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Out of memory\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaElement));
ret->name = xmlStrdup(name);
val = xmlHashAddEntry3(schema->elemDecl, name,
namespace, ctxt->container, ret);
if (val != 0) {
char buf[100];
snprintf(buf, 99, "privatieelem%d", ctxt->counter++ + 1);
val = xmlHashAddEntry3(schema->elemDecl, name, (xmlChar *) buf,
namespace, ret);
if (val != 0) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Could not add element %s\n",
name);
xmlFree((char *) ret->name);
xmlFree(ret);
return (NULL);
}
}
return (ret);