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gerrit-public.fairphone.software / fp2-dev / platform / external / libxml2 / f5f3718703180eca6a158a3cbaa68e2fa9eaf4c6 / . / xmlschemas.c
blob: 46f9f4c9255fb2608ea7543a6784af7083298788 [file] [log] [blame]
/*
* 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 */
/* #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->groupDecl != NULL)
xmlHashFree(schema->groupDecl,
(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 xmlChar *prefix = 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 = (long) node->content;
} else if ((node->prev != NULL) &&
(node->prev->type == XML_ELEMENT_NODE)) {
line = (long) node->prev->content;
} else if ((node->parent != NULL) &&
(node->parent->type == XML_ELEMENT_NODE)) {
line = (long) node->parent->content;
}
if ((node->doc != NULL) && (node->doc->URL != NULL))
file = node->doc->URL;
if (node->name != NULL)
name = node->name;
if ((node->type == XML_ELEMENT_NODE) && (node->ns != NULL) &&
(node->ns->prefix != NULL))
prefix = node->ns->prefix;
}
}
if (ctxt != NULL)
type = "compilation error";
else if (schema != NULL)
type = "runtime error";
if ((file != NULL) && (line != 0) && (name != NULL) && (prefix != NULL))
ctxt->error(ctxt->userData, "%s: file %s line %d element %s:%s\n",
type, file, line, prefix, name);
else 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) && (prefix != NULL))
ctxt->error(ctxt->userData, "%s: file %s element %s:%s\n",
type, file, prefix, 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) && (prefix != NULL))
ctxt->error(ctxt->userData, "%s: element %s:%s\n", type, prefix, name);
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 the group definition or NULL if not found.
*/
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, "Notation %s already defined\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, "Attribute %s already defined\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, "Attribute group %s already defined\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, "Element %s already defined\n",
name);
xmlFree((char *) ret->name);
xmlFree(ret);
return (NULL);
}
}
return (ret);
}
/**
* xmlSchemaAddType:
* @ctxt: a schema validation context
* @schema: the schema being built
* @name: the item name
*
* Add an XML schema Simple Type definition
* *WARNING* this interface is highly subject to change
*
* Returns the new struture or NULL in case of error
*/
static xmlSchemaTypePtr
xmlSchemaAddType(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
const xmlChar * name)
{
xmlSchemaTypePtr ret = NULL;
int val;
if ((ctxt == NULL) || (schema == NULL) || (name == NULL))
return (NULL);
if (schema->typeDecl == NULL)
schema->typeDecl = xmlHashCreate(10);
if (schema->typeDecl == NULL)
return (NULL);
ret = (xmlSchemaTypePtr) xmlMalloc(sizeof(xmlSchemaType));
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(xmlSchemaType));
ret->name = xmlStrdup(name);
val = xmlHashAddEntry2(schema->typeDecl, name, schema->targetNamespace,
ret);
if (val != 0) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Type %s already defined\n", name);
xmlFree((char *) ret->name);
xmlFree(ret);
return (NULL);
}
ret->minOccurs = 1;
ret->maxOccurs = 1;
return (ret);
}
/**
* xmlSchemaAddGroup:
* @ctxt: a schema validation context
* @schema: the schema being built
* @name: the group name
*
* Add an XML schema Group definition
*
* Returns the new struture or NULL in case of error
*/
static xmlSchemaTypePtr
xmlSchemaAddGroup(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
const xmlChar * name)
{
xmlSchemaTypePtr ret = NULL;
int val;
if ((ctxt == NULL) || (schema == NULL) || (name == NULL))
return (NULL);
if (schema->groupDecl == NULL)
schema->groupDecl = xmlHashCreate(10);
if (schema->groupDecl == NULL)
return (NULL);
ret = (xmlSchemaTypePtr) xmlMalloc(sizeof(xmlSchemaType));
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(xmlSchemaType));
ret->name = xmlStrdup(name);
val = xmlHashAddEntry2(schema->groupDecl, name, schema->targetNamespace,
ret);
if (val != 0) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Group %s already defined\n", name);
xmlFree((char *) ret->name);
xmlFree(ret);
return (NULL);
}
ret->minOccurs = 1;
ret->maxOccurs = 1;
return (ret);
}
/************************************************************************
* *
* Utilities for parsing *
* *
************************************************************************/
/**
* xmlGetQNameProp:
* @ctxt: a schema validation context
* @node: a subtree containing XML Schema informations
* @name: the attribute name
* @namespace: the result namespace if any
*
* Extract a QName Attribute value
*
* Returns the NCName or NULL if not found, and also update @namespace
* with the namespace URI
*/
static xmlChar *
xmlGetQNameProp(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node,
const char *name,
xmlChar **namespace) {
xmlChar *val, *ret, *prefix;
xmlNsPtr ns;
if (namespace != NULL)
*namespace = NULL;
val = xmlGetProp(node, (const xmlChar *) name);
if (val == NULL)
return(NULL);
ret = xmlSplitQName2(val, &prefix);
if (ret == NULL)
return(val);
xmlFree(val);
ns = xmlSearchNs(node->doc, node, prefix);
if (ns == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Attribute %s: the QName prefix %s is undefined\n",
name, prefix);
} else {
*namespace = xmlStrdup(ns->href);
}
xmlFree(prefix);
return(ret);
}
/**
* xmlGetMaxOccurs:
* @ctxt: a schema validation context
* @node: a subtree containing XML Schema informations
*
* Get the maxOccurs property
*
* Returns the default if not found, or the value
*/
static int
xmlGetMaxOccurs(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node) {
xmlChar *val, *cur;
int ret = 0;
val = xmlGetProp(node, (const xmlChar *) "maxOccurs");
if (val == NULL)
return(1);
if (xmlStrEqual(val, (const xmlChar *) "unbounded")) {
xmlFree(val);
return(UNBOUNDED); /* encoding it with -1 might be another option */
}
cur = val;
while (IS_BLANK(*cur)) cur++;
while ((*cur >= '0') && (*cur <= '9')) {
ret = ret * 10 + (*cur - '0');
cur++;
}
while (IS_BLANK(*cur)) cur++;
if (*cur != 0) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "invalid value for minOccurs: %s\n",
val);
xmlFree(val);
return(1);
}
xmlFree(val);
return(ret);
}
/**
* xmlGetMinOccurs:
* @ctxt: a schema validation context
* @node: a subtree containing XML Schema informations
*
* Get the minOccurs property
*
* Returns the default if not found, or the value
*/
static int
xmlGetMinOccurs(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node) {
xmlChar *val, *cur;
int ret = 0;
val = xmlGetProp(node, (const xmlChar *) "minOccurs");
if (val == NULL)
return(1);
cur = val;
while (IS_BLANK(*cur)) cur++;
while ((*cur >= '0') && (*cur <= '9')) {
ret = ret * 10 + (*cur - '0');
cur++;
}
while (IS_BLANK(*cur)) cur++;
if (*cur != 0) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "invalid value for minOccurs: %s\n",
val);
xmlFree(val);
return(1);
}
xmlFree(val);
return(ret);
}
/**
* xmlGetBooleanProp:
* @ctxt: a schema validation context
* @node: a subtree containing XML Schema informations
* @name: the attribute name
* @def: the default value
*
* Get is a bolean property is set
*
* Returns the default if not found, 0 if found to be false,
* 1 if found to be true
*/
static int
xmlGetBooleanProp(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node,
const char *name, int def) {
xmlChar *val;
val = xmlGetProp(node, (const xmlChar *) name);
if (val == NULL)
return(def);
if (xmlStrEqual(val, BAD_CAST"true"))
def = 1;
else if (xmlStrEqual(val, BAD_CAST"false"))
def = 0;
else {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Attribute %s: the value %s is not boolean\n",
name, val);
}
xmlFree(val);
return(def);
}
/************************************************************************
* *
* Shema extraction from an Infoset *
* *
************************************************************************/
static xmlSchemaTypePtr xmlSchemaParseSimpleType(xmlSchemaParserCtxtPtr
ctxt, xmlSchemaPtr schema,
xmlNodePtr node);
static xmlSchemaTypePtr xmlSchemaParseComplexType(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema,
xmlNodePtr node);
static xmlSchemaTypePtr xmlSchemaParseRestriction(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema,
xmlNodePtr node,
int simple);
static xmlSchemaTypePtr xmlSchemaParseSequence(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema,
xmlNodePtr node);
static xmlSchemaTypePtr xmlSchemaParseAll(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema,
xmlNodePtr node);
static xmlSchemaAttributePtr xmlSchemaParseAttribute(xmlSchemaParserCtxtPtr
ctxt,
xmlSchemaPtr schema,
xmlNodePtr node);
static xmlSchemaAttributeGroupPtr
xmlSchemaParseAttributeGroup(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema, xmlNodePtr node);
static xmlSchemaTypePtr xmlSchemaParseChoice(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema,
xmlNodePtr node);
static xmlSchemaTypePtr xmlSchemaParseList(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema,
xmlNodePtr node);
static xmlSchemaAttributePtr
xmlSchemaParseAnyAttribute(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node);
/**
* xmlSchemaParseAttrDecls:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
* @type: the hosting type
*
* parse a XML schema attrDecls declaration corresponding to
* <!ENTITY % attrDecls
* '((%attribute;| %attributeGroup;)*,(%anyAttribute;)?)'>
*/
static xmlNodePtr
xmlSchemaParseAttrDecls(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr child, xmlSchemaTypePtr type)
{
xmlSchemaAttributePtr lastattr, attr;
lastattr = NULL;
while ((IS_SCHEMA(child, "attribute")) ||
(IS_SCHEMA(child, "attributeGroup"))) {
attr = NULL;
if (IS_SCHEMA(child, "attribute")) {
attr = xmlSchemaParseAttribute(ctxt, schema, child);
} else if (IS_SCHEMA(child, "attributeGroup")) {
attr = (xmlSchemaAttributePtr)
xmlSchemaParseAttributeGroup(ctxt, schema, child);
}
if (attr != NULL) {
if (lastattr == NULL) {
type->attributes = attr;
lastattr = attr
;
} else {
lastattr->next = attr;
lastattr = attr;
}
}
child = child->next;
}
if (IS_SCHEMA(child, "anyAttribute")) {
attr = xmlSchemaParseAnyAttribute(ctxt, schema, child);
if (attr != NULL) {
if (lastattr == NULL) {
type->attributes = attr;
lastattr = attr
;
} else {
lastattr->next = attr;
lastattr = attr;
}
}
child = child->next;
}
return(child);
}
/**
* xmlSchemaParseAnnotation:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Attrribute declaration
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaAnnotPtr
xmlSchemaParseAnnotation(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaAnnotPtr ret;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
ret = xmlSchemaNewAnnot(ctxt, node);
return (ret);
}
/**
* xmlSchemaParseFacet:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Facet declaration
* *WARNING* this interface is highly subject to change
*
* Returns the new type structure or NULL in case of error
*/
static xmlSchemaFacetPtr
xmlSchemaParseFacet(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaFacetPtr facet;
xmlNodePtr child = NULL;
xmlChar *value;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
facet = xmlSchemaNewFacet();
if (facet == NULL)
return (NULL);
facet->node = node;
value = xmlGetProp(node, (const xmlChar *) "value");
if (value == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Facet %s has no value\n", node->name);
xmlSchemaFreeFacet(facet);
return (NULL);
}
if (IS_SCHEMA(node, "minInclusive")) {
facet->type = XML_SCHEMA_FACET_MININCLUSIVE;
} else if (IS_SCHEMA(node, "minExclusive")) {
facet->type = XML_SCHEMA_FACET_MINEXCLUSIVE;
} else if (IS_SCHEMA(node, "maxInclusive")) {
facet->type = XML_SCHEMA_FACET_MAXINCLUSIVE;
} else if (IS_SCHEMA(node, "maxExclusive")) {
facet->type = XML_SCHEMA_FACET_MAXEXCLUSIVE;
} else if (IS_SCHEMA(node, "totalDigits")) {
facet->type = XML_SCHEMA_FACET_TOTALDIGITS;
} else if (IS_SCHEMA(node, "fractionDigits")) {
facet->type = XML_SCHEMA_FACET_FRACTIONDIGITS;
} else if (IS_SCHEMA(node, "pattern")) {
facet->type = XML_SCHEMA_FACET_PATTERN;
} else if (IS_SCHEMA(node, "enumeration")) {
facet->type = XML_SCHEMA_FACET_ENUMERATION;
} else if (IS_SCHEMA(node, "whiteSpace")) {
facet->type = XML_SCHEMA_FACET_WHITESPACE;
} else if (IS_SCHEMA(node, "length")) {
facet->type = XML_SCHEMA_FACET_LENGTH;
} else if (IS_SCHEMA(node, "maxLength")) {
facet->type = XML_SCHEMA_FACET_MAXLENGTH;
} else if (IS_SCHEMA(node, "minLength")) {
facet->type = XML_SCHEMA_FACET_MINLENGTH;
} else {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Unknown facet type %s\n", node->name);
xmlSchemaFreeFacet(facet);
return(NULL);
}
facet->id = xmlGetProp(node, (const xmlChar *) "id");
facet->value = value;
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
facet->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Facet %s has unexpected child content\n",
node->name);
}
return (facet);
}
/**
* xmlSchemaParseAny:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Any declaration
* *WARNING* this interface is highly subject to change
*
* Returns the new type structure or NULL in case of error
*/
static xmlSchemaTypePtr
xmlSchemaParseAny(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type;
xmlNodePtr child = NULL;
xmlChar name[30];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf((char *)name, 30, "any %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_ANY;
child = node->children;
type->minOccurs = xmlGetMinOccurs(ctxt, node);
type->maxOccurs = xmlGetMaxOccurs(ctxt, node);
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Sequence %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseNotation:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Notation declaration
*
* Returns the new structure or NULL in case of error
*/
static xmlSchemaNotationPtr
xmlSchemaParseNotation(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlChar *name;
xmlSchemaNotationPtr ret;
xmlNodePtr child = NULL;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
name = xmlGetProp(node, (const xmlChar *) "name");
if (name == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Notation has no name\n");
return (NULL);
}
ret = xmlSchemaAddNotation(ctxt, schema, name);
if (ret == NULL) {
xmlFree(name);
return (NULL);
}
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
ret->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"notation %s has unexpected content\n",
name);
}
return (ret);
}
/**
* xmlSchemaParseAnyAttribute:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema AnyAttrribute declaration
* *WARNING* this interface is highly subject to change
*
* Returns an attribute def structure or NULL
*/
static xmlSchemaAttributePtr
xmlSchemaParseAnyAttribute(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlChar *processContents;
xmlSchemaAttributePtr ret;
xmlNodePtr child = NULL;
char name[100];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf(name, 99, "anyattr %d", ctxt->counter++ + 1);
ret = xmlSchemaAddAttribute(ctxt, schema, (xmlChar *)name);
if (ret == NULL) {
return (NULL);
}
ret->id = xmlGetProp(node, (const xmlChar *) "id");
processContents = xmlGetProp(node, (const xmlChar *) "processContents");
if ((processContents == NULL) ||
(xmlStrEqual(processContents, (const xmlChar *)"strict"))) {
ret->occurs = XML_SCHEMAS_ANYATTR_STRICT;
} else if (xmlStrEqual(processContents, (const xmlChar *)"skip")) {
ret->occurs = XML_SCHEMAS_ANYATTR_SKIP;
} else if (xmlStrEqual(processContents, (const xmlChar *)"lax")) {
ret->occurs = XML_SCHEMAS_ANYATTR_LAX;
} else {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"anyAttribute has unexpected content for processContents: %s\n",
processContents);
ret->occurs = XML_SCHEMAS_ANYATTR_STRICT;
}
if (processContents != NULL)
xmlFree(processContents);
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
ret->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"anyAttribute %s has unexpected content\n",
name);
}
return (ret);
}
/**
* xmlSchemaParseAttribute:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Attrribute declaration
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaAttributePtr
xmlSchemaParseAttribute(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlChar *name, *refNs = NULL, *ref = NULL;
xmlSchemaAttributePtr ret;
xmlNodePtr child = NULL;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
name = xmlGetProp(node, (const xmlChar *) "name");
if (name == NULL) {
char buf[100];
ref = xmlGetQNameProp(ctxt, node, "ref", &refNs);
if (ref == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Attribute has no name nor ref\n");
return (NULL);
}
snprintf(buf, 99, "anonattr%d", ctxt->counter++ + 1);
name = xmlStrdup((xmlChar *) buf);
}
ret = xmlSchemaAddAttribute(ctxt, schema, name);
if (ret == NULL) {
xmlFree(name);
if (ref != NULL)
xmlFree(ref);
return (NULL);
}
xmlFree(name);
ret->ref = ref;
ret->refNs = refNs;
ret->typeName = xmlGetQNameProp(ctxt, node, "type", &(ret->typeNs));
ret->node = node;
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
ret->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (IS_SCHEMA(child, "simpleType")) {
ret->subtypes = xmlSchemaParseSimpleType(ctxt, schema, child);
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"attribute %s has unexpected content\n",
name);
}
return (ret);
}
/**
* xmlSchemaParseAttributeGroup:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Attribute Group declaration
* *WARNING* this interface is highly subject to change
*
* Returns the attribute group or NULL in case of error.
*/
static xmlSchemaAttributeGroupPtr
xmlSchemaParseAttributeGroup(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlChar *name, *refNs = NULL, *ref = NULL;
xmlSchemaAttributeGroupPtr ret;
xmlSchemaAttributePtr last = NULL, attr;
xmlNodePtr child = NULL;
xmlChar *oldcontainer;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
oldcontainer = ctxt->container;
name = xmlGetProp(node, (const xmlChar *) "name");
if (name == NULL) {
char buf[100];
ref = xmlGetQNameProp(ctxt, node, "ref", &refNs);
if (ref == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"AttributeGroup has no name nor ref\n");
return (NULL);
}
snprintf(buf, 99, "anonattrgroup%d", ctxt->counter++ + 1);
name = xmlStrdup((xmlChar *) buf);
if (name == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"out of memory\n");
return (NULL);
}
}
ret = xmlSchemaAddAttributeGroup(ctxt, schema, name);
if (ret == NULL) {
xmlFree(name);
if (ref != NULL)
xmlFree(ref);
return (NULL);
}
ret->ref = ref;
ret->refNs = refNs;
ret->type = XML_SCHEMA_TYPE_ATTRIBUTEGROUP;
ret->node = node;
child = node->children;
ctxt->container = name;
if (IS_SCHEMA(child, "annotation")) {
ret->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
while ((IS_SCHEMA(child, "attribute")) ||
(IS_SCHEMA(child, "attributeGroup"))) {
attr = NULL;
if (IS_SCHEMA(child, "attribute")) {
attr = xmlSchemaParseAttribute(ctxt, schema, child);
} else if (IS_SCHEMA(child, "attributeGroup")) {
attr = (xmlSchemaAttributePtr)
xmlSchemaParseAttributeGroup(ctxt, schema, child);
}
if (attr != NULL) {
if (last == NULL) {
ret->attributes = attr;
last = attr;
} else {
last->next = attr;
last = attr;
}
}
child = child->next;
}
if (IS_SCHEMA(child, "anyAttribute")) {
TODO
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"attribute group %s has unexpected content\n",
name);
}
ctxt->container = oldcontainer;
xmlFree(name);
return (ret);
}
/**
* xmlSchemaParseElement:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Element declaration
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaElementPtr
xmlSchemaParseElement(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node, int toplevel)
{
xmlChar *name, *refNs = NULL, *ref = NULL, *namespace, *fixed;
xmlSchemaElementPtr ret;
xmlNodePtr child = NULL;
xmlChar *oldcontainer;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
oldcontainer = ctxt->container;
name = xmlGetProp(node, (const xmlChar *) "name");
if (name == NULL) {
char buf[100];
ref = xmlGetQNameProp(ctxt, node, "ref", &refNs);
if (ref == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Element has no name nor ref\n");
return (NULL);
}
snprintf(buf, 99, "anonelem%d", ctxt->counter++ + 1);
name = xmlStrdup((xmlChar *) buf);
}
namespace = xmlGetProp(node, (const xmlChar *) "targetNamespace");
if (namespace == NULL)
ret =
xmlSchemaAddElement(ctxt, schema, name,
schema->targetNamespace);
else
ret = xmlSchemaAddElement(ctxt, schema, name, namespace);
ret->node = node;
if (namespace != NULL)
xmlFree(namespace);
if (ret == NULL) {
xmlFree(name);
if (ref != NULL)
xmlFree(ref);
return (NULL);
}
ret->type = XML_SCHEMA_TYPE_ELEMENT;
ret->ref = ref;
ret->refNs = refNs;
if (ref != NULL)
ret->flags |= XML_SCHEMAS_ELEM_REF;
if (toplevel)
ret->flags |= XML_SCHEMAS_ELEM_TOPLEVEL;
if (xmlGetBooleanProp(ctxt, node, "nillable", 0))
ret->flags |= XML_SCHEMAS_ELEM_NILLABLE;
if (xmlGetBooleanProp(ctxt, node, "abstract", 0))
ret->flags |= XML_SCHEMAS_ELEM_NILLABLE;
ctxt->container = name;
ret->id = xmlGetProp(node, BAD_CAST "id");
ret->namedType = xmlGetQNameProp(ctxt, node, "type", &(ret->namedTypeNs));
ret->substGroup = xmlGetQNameProp(ctxt, node, "substitutionGroup",
&(ret->substGroupNs));
fixed = xmlGetProp(node, BAD_CAST "fixed");
ret->minOccurs = xmlGetMinOccurs(ctxt, node);
ret->maxOccurs = xmlGetMaxOccurs(ctxt, node);
ret->value = xmlGetProp(node, BAD_CAST "default");
if ((ret->value != NULL) && (fixed != NULL)) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
ctxt->error(ctxt->userData,
"Element %s has both default and fixed\n",
ret->name);
xmlFree(fixed);
} else if (fixed != NULL) {
ret->flags |= XML_SCHEMAS_ELEM_FIXED;
ret->value = fixed;
}
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
ret->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (IS_SCHEMA(child, "complexType")) {
ret->subtypes = xmlSchemaParseComplexType(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "simpleType")) {
ret->subtypes = xmlSchemaParseSimpleType(ctxt, schema, child);
child = child->next;
}
while ((IS_SCHEMA(child, "unique")) ||
(IS_SCHEMA(child, "key")) ||
(IS_SCHEMA(child, "keyref"))) {
TODO
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"element %s has unexpected content\n",
name);
}
ctxt->container = oldcontainer;
xmlFree(name);
return (ret);
}
/**
* xmlSchemaParseUnion:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Union definition
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaTypePtr
xmlSchemaParseUnion(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype, last = NULL;
xmlNodePtr child = NULL;
xmlChar name[30];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf((char *)name, 30, "union %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_LIST;
type->id = xmlGetProp(node, BAD_CAST "id");
type->ref = xmlGetProp(node, BAD_CAST "memberTypes");
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
while (IS_SCHEMA(child, "simpleType")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseSimpleType(ctxt, schema, child);
if (subtype != NULL) {
if (last == NULL) {
type->subtypes = subtype;
last = subtype;
} else {
last->next = subtype;
last = subtype;
}
last->next = NULL;
}
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Union %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseList:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema List definition
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaTypePtr
xmlSchemaParseList(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype;
xmlNodePtr child = NULL;
xmlChar name[30];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf((char *)name, 30, "list %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_LIST;
type->id = xmlGetProp(node, BAD_CAST "id");
type->ref = xmlGetQNameProp(ctxt, node, "ref", &(type->refNs));
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
subtype = NULL;
if (IS_SCHEMA(child, "simpleType")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseSimpleType(ctxt, schema, child);
child = child->next;
type->subtypes = subtype;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"List %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseSimpleType:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Simple Type definition
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaTypePtr
xmlSchemaParseSimpleType(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype;
xmlNodePtr child = NULL;
xmlChar *name;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
name = xmlGetProp(node, (const xmlChar *) "name");
if (name == NULL) {
char buf[100];
snprintf(buf, 99, "simpletype%d", ctxt->counter++ + 1);
name = xmlStrdup((xmlChar *) buf);
}
if (name == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "simpleType has no name\n");
return (NULL);
}
type = xmlSchemaAddType(ctxt, schema, name);
xmlFree(name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_SIMPLE;
type->id = xmlGetProp(node, BAD_CAST "id");
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
subtype = NULL;
if (IS_SCHEMA(child, "restriction")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseRestriction(ctxt, schema, child, 1);
child = child->next;
} else if (IS_SCHEMA(child, "list")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseList(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "union")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseUnion(ctxt, schema, child);
child = child->next;
}
type->subtypes = subtype;
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"SimpleType %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseGroup:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Group definition
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaTypePtr
xmlSchemaParseGroup(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype;
xmlNodePtr child = NULL;
xmlChar *name, *ref = NULL, *refNs = NULL;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
name = xmlGetProp(node, (const xmlChar *) "name");
if (name == NULL) {
char buf[100];
ref = xmlGetQNameProp(ctxt, node, "ref", &refNs);
if (ref == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "Group has no name nor ref\n");
return (NULL);
}
snprintf(buf, 99, "anongroup%d", ctxt->counter++ + 1);
name = xmlStrdup((xmlChar *) buf);
}
type = xmlSchemaAddGroup(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_GROUP;
type->id = xmlGetProp(node, BAD_CAST "id");
type->ref = ref;
type->refNs = refNs;
type->minOccurs = xmlGetMinOccurs(ctxt, node);
type->maxOccurs = xmlGetMaxOccurs(ctxt, node);
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
subtype = NULL;
if (IS_SCHEMA(child, "all")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseAll(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "choice")) {
subtype = xmlSchemaParseChoice(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "sequence")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseSequence(ctxt, schema, child);
child = child->next;
}
if (subtype != NULL)
type->subtypes = subtype;
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Group %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseAll:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema All definition
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaTypePtr
xmlSchemaParseAll(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype, last = NULL;
xmlNodePtr child = NULL;
xmlChar name[30];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf((char *)name, 30, "all%d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_ALL;
type->id = xmlGetProp(node, BAD_CAST "id");
type->minOccurs = xmlGetMinOccurs(ctxt, node);
type->maxOccurs = xmlGetMaxOccurs(ctxt, node);
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
while (IS_SCHEMA(child, "element")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseElement(ctxt, schema, child, 0);
if (subtype != NULL) {
if (last == NULL) {
type->subtypes = subtype;
last = subtype;
} else {
last->next = subtype;
last = subtype;
}
last->next = NULL;
}
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"All %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseImport:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Import definition
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static int
xmlSchemaParseImport(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlNodePtr child = NULL;
xmlChar *namespace;
xmlChar *schemaLocation;
xmlChar *previous;
xmlURIPtr check;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (-1);
namespace = xmlGetProp(node, BAD_CAST "namespace");
if (namespace != NULL) {
check = xmlParseURI((const char *) namespace);
if (check == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Import namespace attribute is not an URI: %s\n",
namespace);
xmlFree(namespace);
return(-1);
} else {
xmlFreeURI(check);
}
}
schemaLocation = xmlGetProp(node, BAD_CAST "schemaLocation");
if (schemaLocation != NULL) {
check = xmlParseURI((const char *) schemaLocation);
if (check == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Import schemaLocation attribute is not an URI: %s\n",
schemaLocation);
if (namespace != NULL)
xmlFree(namespace);
xmlFree(schemaLocation);
return(-1);
} else {
xmlFreeURI(check);
}
}
if (schema->schemasImports == NULL) {
schema->schemasImports = xmlHashCreate(10);
if (schema->schemasImports == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Internal: failed to build import table\n");
if (namespace != NULL)
xmlFree(namespace);
if (schemaLocation != NULL)
xmlFree(schemaLocation);
return(-1);
}
}
if (namespace == NULL) {
previous = xmlHashLookup(schema->schemasImports,
XML_SCHEMAS_DEFAULT_NAMESPACE);
if (schemaLocation != NULL) {
if (previous != NULL) {
if (!xmlStrEqual(schemaLocation, previous)) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Redefining import for default namespace with a different URI: %s\n",
schemaLocation);
}
} else {
xmlHashAddEntry(schema->schemasImports,
XML_SCHEMAS_DEFAULT_NAMESPACE, schemaLocation);
}
}
} else {
previous = xmlHashLookup(schema->schemasImports, namespace);
if (schemaLocation != NULL) {
if (previous != NULL) {
if (!xmlStrEqual(schemaLocation, previous)) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Redefining import for namespace %s with a different URI: %s\n",
namespace, schemaLocation);
}
} else {
xmlHashAddEntry(schema->schemasImports,
namespace, schemaLocation);
}
}
}
child = node->children;
while (IS_SCHEMA(child, "annotation")) {
/*
* the annotations here are simply discarded ...
*/
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Import has unexpected content\n");
return(-1);
}
return(1);
}
/**
* xmlSchemaParseChoice:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Choice definition
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaTypePtr
xmlSchemaParseChoice(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype, last = NULL;
xmlNodePtr child = NULL;
xmlChar name[30];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf((char *)name, 30, "choice %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_CHOICE;
type->id = xmlGetProp(node, BAD_CAST "id");
type->minOccurs = xmlGetMinOccurs(ctxt, node);
type->maxOccurs = xmlGetMaxOccurs(ctxt, node);
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
while ((IS_SCHEMA(child, "element")) ||
(IS_SCHEMA(child, "group")) ||
(IS_SCHEMA(child, "any")) ||
(IS_SCHEMA(child, "choice")) ||
(IS_SCHEMA(child, "sequence"))) {
subtype = NULL;
if (IS_SCHEMA(child, "element")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseElement(ctxt, schema, child, 0);
} else if (IS_SCHEMA(child, "group")) {
subtype = xmlSchemaParseGroup(ctxt, schema, child);
} else if (IS_SCHEMA(child, "any")) {
subtype = xmlSchemaParseAny(ctxt, schema, child);
} else if (IS_SCHEMA(child, "sequence")) {
subtype = xmlSchemaParseSequence(ctxt, schema, child);
} else if (IS_SCHEMA(child, "choice")) {
subtype = xmlSchemaParseChoice(ctxt, schema, child);
}
if (subtype != NULL) {
if (last == NULL) {
type->subtypes = subtype;
last = subtype;
} else {
last->next = subtype;
last = subtype;
}
last->next = NULL;
}
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Choice %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseSequence:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Sequence definition
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static xmlSchemaTypePtr
xmlSchemaParseSequence(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype, last = NULL;
xmlNodePtr child = NULL;
xmlChar name[30];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf((char *)name, 30, "sequence %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_SEQUENCE;
type->id = xmlGetProp(node, BAD_CAST "id");
type->minOccurs = xmlGetMinOccurs(ctxt, node);
type->maxOccurs = xmlGetMaxOccurs(ctxt, node);
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
while ((IS_SCHEMA(child, "element")) ||
(IS_SCHEMA(child, "group")) ||
(IS_SCHEMA(child, "any")) ||
(IS_SCHEMA(child, "choice")) ||
(IS_SCHEMA(child, "sequence"))) {
subtype = NULL;
if (IS_SCHEMA(child, "element")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseElement(ctxt, schema, child, 0);
} else if (IS_SCHEMA(child, "group")) {
subtype = xmlSchemaParseGroup(ctxt, schema, child);
} else if (IS_SCHEMA(child, "any")) {
subtype = xmlSchemaParseAny(ctxt, schema, child);
} else if (IS_SCHEMA(child, "choice")) {
subtype = xmlSchemaParseChoice(ctxt, schema, child);
} else if (IS_SCHEMA(child, "sequence")) {
subtype = xmlSchemaParseSequence(ctxt, schema, child);
}
if (subtype != NULL) {
if (last == NULL) {
type->subtypes = subtype;
last = subtype;
} else {
last->next = subtype;
last = subtype;
}
last->next = NULL;
}
child = child->next;
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Sequence %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseRestriction:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
* @simple: is that part of a simple type.
*
* parse a XML schema Restriction definition
* *WARNING* this interface is highly subject to change
*
* Returns the type definition or NULL in case of error
*/
static xmlSchemaTypePtr
xmlSchemaParseRestriction(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node, int simple)
{
xmlSchemaTypePtr type, subtype;
xmlSchemaFacetPtr facet, lastfacet = NULL;
xmlNodePtr child = NULL;
xmlChar name[30];
xmlChar *oldcontainer;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
oldcontainer = ctxt->container;
snprintf((char *)name, 30, "restriction %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_RESTRICTION;
type->id = xmlGetProp(node, BAD_CAST "id");
type->base = xmlGetQNameProp(ctxt, node, "base", &(type->baseNs));
if ((!simple) && (type->base == NULL)) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Restriction %s has no base\n",
type->name);
}
ctxt->container = name;
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
subtype = NULL;
if (IS_SCHEMA(child, "all")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseAll(ctxt, schema, child);
child = child->next;
type->subtypes = subtype;
} else if (IS_SCHEMA(child, "choice")) {
subtype = xmlSchemaParseChoice(ctxt, schema, child);
child = child->next;
type->subtypes = subtype;
} else if (IS_SCHEMA(child, "sequence")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseSequence(ctxt, schema, child);
child = child->next;
type->subtypes = subtype;
} else if (IS_SCHEMA(child, "group")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseGroup(ctxt, schema, child);
child = child->next;
type->subtypes = subtype;
} else {
if (IS_SCHEMA(child, "simpleType")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseSimpleType(ctxt, schema, child);
child = child->next;
type->baseType = subtype;
}
/*
* Facets
*/
while ((IS_SCHEMA(child, "minInclusive")) ||
(IS_SCHEMA(child, "minExclusive")) ||
(IS_SCHEMA(child, "maxInclusive")) ||
(IS_SCHEMA(child, "maxExclusive")) ||
(IS_SCHEMA(child, "totalDigits")) ||
(IS_SCHEMA(child, "fractionDigits")) ||
(IS_SCHEMA(child, "pattern")) ||
(IS_SCHEMA(child, "enumeration")) ||
(IS_SCHEMA(child, "whiteSpace")) ||
(IS_SCHEMA(child, "length")) ||
(IS_SCHEMA(child, "maxLength")) ||
(IS_SCHEMA(child, "minLength"))) {
facet = xmlSchemaParseFacet(ctxt, schema, child);
if (facet != NULL) {
if (lastfacet == NULL) {
type->facets = facet;
lastfacet = facet;
} else {
lastfacet->next = facet;
lastfacet = facet;
}
lastfacet->next = NULL;
}
child = child->next;
}
}
child = xmlSchemaParseAttrDecls(ctxt, schema, child, type);
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Restriction %s has unexpected content\n",
type->name);
}
ctxt->container = oldcontainer;
return (type);
}
/**
* xmlSchemaParseExtension:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Extension definition
* *WARNING* this interface is highly subject to change
*
* Returns the type definition or NULL in case of error
*/
static xmlSchemaTypePtr
xmlSchemaParseExtension(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype;
xmlNodePtr child = NULL;
xmlChar name[30];
xmlChar *oldcontainer;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
oldcontainer = ctxt->container;
snprintf((char *)name, 30, "extension %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_EXTENSION;
type->id = xmlGetProp(node, BAD_CAST "id");
ctxt->container = name;
type->base = xmlGetQNameProp(ctxt, node, "base", &(type->baseNs));
if (type->base == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Extension %s has no base\n",
type->name);
}
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
subtype = NULL;
if (IS_SCHEMA(child, "all")) {
subtype = xmlSchemaParseAll(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "choice")) {
subtype = xmlSchemaParseChoice(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "sequence")) {
subtype = xmlSchemaParseSequence(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "group")) {
subtype = xmlSchemaParseGroup(ctxt, schema, child);
child = child->next;
}
if (subtype != NULL)
type->subtypes = subtype;
child = xmlSchemaParseAttrDecls(ctxt, schema, child, type);
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Extension %s has unexpected content\n",
type->name);
}
ctxt->container = oldcontainer;
return (type);
}
/**
* xmlSchemaParseSimpleContent:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema SimpleContent definition
* *WARNING* this interface is highly subject to change
*
* Returns the type definition or NULL in case of error
*/
static xmlSchemaTypePtr
xmlSchemaParseSimpleContent(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype;
xmlNodePtr child = NULL;
xmlChar name[30];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf((char *)name, 30, "complexContent %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_SIMPLE_CONTENT;
type->id = xmlGetProp(node, BAD_CAST "id");
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
subtype = NULL;
if (IS_SCHEMA(child, "restriction")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseRestriction(ctxt, schema, child, 0);
child = child->next;
} else if (IS_SCHEMA(child, "extension")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseExtension(ctxt, schema, child);
child = child->next;
}
type->subtypes = subtype;
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"SimpleContent %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseComplexContent:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema ComplexContent definition
* *WARNING* this interface is highly subject to change
*
* Returns the type definition or NULL in case of error
*/
static xmlSchemaTypePtr
xmlSchemaParseComplexContent(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype;
xmlNodePtr child = NULL;
xmlChar name[30];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf((char *)name, 30, "complexContent %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_COMPLEX_CONTENT;
type->id = xmlGetProp(node, BAD_CAST "id");
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
subtype = NULL;
if (IS_SCHEMA(child, "restriction")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseRestriction(ctxt, schema, child, 0);
child = child->next;
} else if (IS_SCHEMA(child, "extension")) {
subtype = (xmlSchemaTypePtr)
xmlSchemaParseExtension(ctxt, schema, child);
child = child->next;
}
type->subtypes = subtype;
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"ComplexContent %s has unexpected content\n",
type->name);
}
return (type);
}
/**
* xmlSchemaParseComplexType:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Complex Type definition
* *WARNING* this interface is highly subject to change
*
* Returns the type definition or NULL in case of error
*/
static xmlSchemaTypePtr
xmlSchemaParseComplexType(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlSchemaTypePtr type, subtype;
xmlNodePtr child = NULL;
xmlChar *name;
xmlChar *oldcontainer;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
oldcontainer = ctxt->container;
name = xmlGetProp(node, (const xmlChar *) "name");
if (name == NULL) {
char buf[100];
snprintf(buf, 99, "anontype%d", ctxt->counter++ + 1);
name = xmlStrdup((xmlChar *) buf);
}
if (name == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData, "complexType has no name\n");
return (NULL);
}
type = xmlSchemaAddType(ctxt, schema, name);
if (type == NULL) {
xmlFree(name);
return (NULL);
}
type->node = node;
type->type = XML_SCHEMA_TYPE_COMPLEX;
type->id = xmlGetProp(node, BAD_CAST "id");
ctxt->container = name;
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
type->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (IS_SCHEMA(child, "simpleContent")) {
type->subtypes = xmlSchemaParseSimpleContent(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "complexContent")) {
type->subtypes = xmlSchemaParseComplexContent(ctxt, schema, child);
child = child->next;
} else {
subtype = NULL;
if (IS_SCHEMA(child, "all")) {
subtype = xmlSchemaParseAll(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "choice")) {
subtype = xmlSchemaParseChoice(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "sequence")) {
subtype = xmlSchemaParseSequence(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "group")) {
subtype = xmlSchemaParseGroup(ctxt, schema, child);
child = child->next;
}
if (subtype != NULL)
type->subtypes = subtype;
child = xmlSchemaParseAttrDecls(ctxt, schema, child, type);
}
if (child != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"ComplexType %s has unexpected content\n",
type->name);
}
ctxt->container = oldcontainer;
xmlFree(name);
return (type);
}
/**
* xmlSchemaParseSchema:
* @ctxt: a schema validation context
* @node: a subtree containing XML Schema informations
*
* parse a XML schema definition from a node set
* *WARNING* this interface is highly subject to change
*
* Returns the internal XML Schema structure built from the resource or
* NULL in case of error
*/
static xmlSchemaPtr
xmlSchemaParseSchema(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node)
{
xmlSchemaPtr schema = NULL;
xmlSchemaAnnotPtr annot;
xmlNodePtr child = NULL;
xmlChar *val;
int nberrors;
if ((ctxt == NULL) || (node == NULL))
return (NULL);
nberrors = ctxt->nberrors;
ctxt->nberrors = 0;
if (IS_SCHEMA(node, "schema")) {
schema = xmlSchemaNewSchema(ctxt);
if (schema == NULL)
return(NULL);
schema->targetNamespace = xmlGetProp(node, BAD_CAST "targetNamespace");
schema->id = xmlGetProp(node, BAD_CAST "id");
schema->version = xmlGetProp(node, BAD_CAST "version");
val = xmlGetProp(node, BAD_CAST "elementFormDefault");
if (val != NULL) {
if (xmlStrEqual(val, BAD_CAST "qualified"))
schema->flags |= XML_SCHEMAS_QUALIF_ELEM;
else if (!xmlStrEqual(val, BAD_CAST "unqualified")) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL)) {
ctxt->error(ctxt->userData,
"Invalid value %s for elementFormDefault\n",
val);
}
}
xmlFree(val);
}
val = xmlGetProp(node, BAD_CAST "attributeFormDefault");
if (val != NULL) {
if (xmlStrEqual(val, BAD_CAST "qualified"))
schema->flags |= XML_SCHEMAS_QUALIF_ATTR;
else if (!xmlStrEqual(val, BAD_CAST "unqualified")) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL)) {
ctxt->error(ctxt->userData,
"Invalid value %s for elementFormDefault\n",
val);
}
}
xmlFree(val);
}
child = node->children;
while ((IS_SCHEMA(child, "include")) ||
(IS_SCHEMA(child, "import")) ||
(IS_SCHEMA(child, "redefine")) ||
(IS_SCHEMA(child, "annotation"))) {
if (IS_SCHEMA(child, "annotation")) {
annot = xmlSchemaParseAnnotation(ctxt, schema, child);
if (schema->annot == NULL)
schema->annot = annot;
else
xmlSchemaFreeAnnot(annot);
} else if (IS_SCHEMA(child, "include")) {
TODO
} else if (IS_SCHEMA(child, "import")) {
xmlSchemaParseImport(ctxt, schema, child);
} else if (IS_SCHEMA(child, "redefine")) {
TODO
}
child = child->next;
}
while (child != NULL) {
if (IS_SCHEMA(child, "complexType")) {
xmlSchemaParseComplexType(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "simpleType")) {
xmlSchemaParseSimpleType(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "element")) {
xmlSchemaParseElement(ctxt, schema, child, 1);
child = child->next;
} else if (IS_SCHEMA(child, "attribute")) {
xmlSchemaParseAttribute(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "attributeGroup")) {
xmlSchemaParseAttributeGroup(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "group")) {
xmlSchemaParseGroup(ctxt, schema, child);
child = child->next;
} else if (IS_SCHEMA(child, "notation")) {
xmlSchemaParseNotation(ctxt, schema, child);
child = child->next;
} else {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, schema, node, child);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: unexpected element %s here \n",
child->name);
child = child->next;
}
while (IS_SCHEMA(child, "annotation")) {
annot = xmlSchemaParseAnnotation(ctxt, schema, child);
if (schema->annot == NULL)
schema->annot = annot;
else
xmlSchemaFreeAnnot(annot);
child = child->next;
}
}
}
if (ctxt->nberrors != 0) {
if (schema != NULL) {
xmlSchemaFree(schema);
schema = NULL;
}
}
ctxt->nberrors = nberrors;
#ifdef DEBUG
if (schema == NULL)
xmlGenericError(xmlGenericErrorContext,
"xmlSchemaParse() failed\n");
#endif
return (schema);
}
/************************************************************************
* *
* Validating using Schemas *
* *
************************************************************************/
/************************************************************************
* *
* Reading/Writing Schemas *
* *
************************************************************************/
/**
* xmlSchemaNewParserCtxt:
* @URL: the location of the schema
*
* Create an XML Schemas parse context for that file/resource expected
* to contain an XML Schemas file.
*
* Returns the parser context or NULL in case of error
*/
xmlSchemaParserCtxtPtr
xmlSchemaNewParserCtxt(const char *URL) {
xmlSchemaParserCtxtPtr ret;
if (URL == NULL)
return(NULL);
ret = (xmlSchemaParserCtxtPtr) xmlMalloc(sizeof(xmlSchemaParserCtxt));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext,
"Failed to allocate new schama parser context for %s\n", URL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaParserCtxt));
ret->URL = xmlStrdup((const xmlChar *)URL);
return (ret);
}
/**
* xmlSchemaNewMemParserCtxt:
* @buffer: a pointer to a char array containing the schemas
* @size: the size of the array
*
* Create an XML Schemas parse context for that memory buffer expected
* to contain an XML Schemas file.
*
* Returns the parser context or NULL in case of error
*/
xmlSchemaParserCtxtPtr
xmlSchemaNewMemParserCtxt(const char *buffer, int size) {
xmlSchemaParserCtxtPtr ret;
if ((buffer == NULL) || (size <= 0))
return(NULL);
ret = (xmlSchemaParserCtxtPtr) xmlMalloc(sizeof(xmlSchemaParserCtxt));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext,
"Failed to allocate new schama parser context\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaParserCtxt));
ret->buffer = buffer;
ret->size = size;
return (ret);
}
/**
* xmlSchemaFreeParserCtxt:
* @ctxt: the schema parser context
*
* Free the resources associated to the schema parser context
*/
void
xmlSchemaFreeParserCtxt(xmlSchemaParserCtxtPtr ctxt) {
if (ctxt == NULL)
return;
if (ctxt->URL != NULL)
xmlFree(ctxt->URL);
if (ctxt->doc != NULL)
xmlFreeDoc(ctxt->doc);
xmlFree(ctxt);
}
/************************************************************************
* *
* Building the content models *
* *
************************************************************************/
/**
* xmlSchemaBuildAContentModel:
* @type: the schema type definition
* @ctxt: the schema parser context
* @name: the element name whose content is being built
*
* Generate the automata sequence needed for that type
*/
static void
xmlSchemaBuildAContentModel(xmlSchemaTypePtr type,
xmlSchemaParserCtxtPtr ctxt,
const xmlChar *name) {
if (type == NULL) {
xmlGenericError(xmlGenericErrorContext,
"Found unexpected type = NULL in %s content model\n",
name);
return;
}
switch (type->type) {
case XML_SCHEMA_TYPE_ANY:
/* TODO : handle the namespace too */
/* TODO : make that a specific transition type */
TODO
ctxt->state = xmlAutomataNewTransition(ctxt->am, ctxt->state,
NULL, BAD_CAST "*", NULL);
break;
case XML_SCHEMA_TYPE_ELEMENT: {
xmlSchemaElementPtr elem = (xmlSchemaElementPtr) type;
/* TODO : handle the namespace too */
xmlAutomataStatePtr oldstate = ctxt->state;
if (elem->maxOccurs >= UNBOUNDED) {
if (elem->minOccurs > 1) {
xmlAutomataStatePtr tmp;
int counter;
ctxt->state = xmlAutomataNewEpsilon(ctxt->am,
oldstate, NULL);
oldstate = ctxt->state;
counter = xmlAutomataNewCounter(ctxt->am,
elem->minOccurs - 1, UNBOUNDED);
if (elem->refDecl != NULL) {
xmlSchemaBuildAContentModel(
(xmlSchemaTypePtr) elem->refDecl,
ctxt, elem->refDecl->name);
} else {
ctxt->state = xmlAutomataNewTransition(ctxt->am,
ctxt->state, NULL, elem->name, type);
}
tmp = ctxt->state;
xmlAutomataNewCountedTrans(ctxt->am, tmp, oldstate,
counter);
ctxt->state = xmlAutomataNewCounterTrans(ctxt->am, tmp,
NULL, counter);
} else {
if (elem->refDecl != NULL) {
xmlSchemaBuildAContentModel(
(xmlSchemaTypePtr) elem->refDecl,
ctxt, elem->refDecl->name);
} else {
ctxt->state = xmlAutomataNewTransition(ctxt->am,
ctxt->state, NULL, elem->name, type);
}
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, oldstate);
if (elem->minOccurs == 0) {
/* basically an elem* */
xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
}
}
} else if ((elem->maxOccurs > 1) || (elem->minOccurs > 1)) {
xmlAutomataStatePtr tmp;
int counter;
ctxt->state = xmlAutomataNewEpsilon(ctxt->am,
oldstate, NULL);
oldstate = ctxt->state;
counter = xmlAutomataNewCounter(ctxt->am,
elem->minOccurs - 1, elem->maxOccurs - 1);
if (elem->refDecl != NULL) {
xmlSchemaBuildAContentModel(
(xmlSchemaTypePtr) elem->refDecl,
ctxt, elem->refDecl->name);
} else {
ctxt->state = xmlAutomataNewTransition(ctxt->am,
ctxt->state, NULL, elem->name, type);
}
tmp = ctxt->state;
xmlAutomataNewCountedTrans(ctxt->am, tmp, oldstate,
counter);
ctxt->state = xmlAutomataNewCounterTrans(ctxt->am, tmp,
NULL, counter);
if (elem->minOccurs == 0) {
/* basically an elem? */
xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
}
} else {
if (elem->refDecl != NULL) {
xmlSchemaBuildAContentModel(
(xmlSchemaTypePtr) elem->refDecl,
ctxt, elem->refDecl->name);
} else {
ctxt->state = xmlAutomataNewTransition(ctxt->am,
ctxt->state, NULL, elem->name, type);
}
if (elem->minOccurs == 0) {
/* basically an elem? */
xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
}
}
break;
}
case XML_SCHEMA_TYPE_SEQUENCE: {
xmlSchemaTypePtr subtypes;
/*
* If max and min occurances are default (1) then
* simply iterate over the subtypes
*/
if ((type->minOccurs == 1 ) && (type->maxOccurs == 1)) {
subtypes = type->subtypes;
while (subtypes != NULL) {
xmlSchemaBuildAContentModel(subtypes, ctxt, name);
subtypes = subtypes->next;
}
} else {
xmlAutomataStatePtr oldstate = ctxt->state;
if (type->maxOccurs >= UNBOUNDED) {
if (type->minOccurs > 1) {
xmlAutomataStatePtr tmp;
int counter;
ctxt->state = xmlAutomataNewEpsilon(ctxt->am,
oldstate, NULL);
oldstate = ctxt->state;
counter = xmlAutomataNewCounter(ctxt->am,
type->minOccurs - 1, UNBOUNDED);
subtypes = type->subtypes;
while (subtypes != NULL) {
xmlSchemaBuildAContentModel(subtypes, ctxt, name);
subtypes = subtypes->next;
}
tmp = ctxt->state;
xmlAutomataNewCountedTrans(ctxt->am, tmp, oldstate,
counter);
ctxt->state = xmlAutomataNewCounterTrans(ctxt->am, tmp,
NULL, counter);
} else {
subtypes = type->subtypes;
while (subtypes != NULL) {
xmlSchemaBuildAContentModel(subtypes, ctxt, name);
subtypes = subtypes->next;
}
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, oldstate);
if (type->minOccurs == 0) {
xmlAutomataNewEpsilon(ctxt->am, oldstate,
ctxt->state);
}
}
} else if ((type->maxOccurs > 1) || (type->minOccurs > 1)) {
xmlAutomataStatePtr tmp;
int counter;
ctxt->state = xmlAutomataNewEpsilon(ctxt->am,
oldstate, NULL);
oldstate = ctxt->state;
counter = xmlAutomataNewCounter(ctxt->am,
type->minOccurs - 1, type->maxOccurs - 1);
subtypes = type->subtypes;
while (subtypes != NULL) {
xmlSchemaBuildAContentModel(subtypes, ctxt, name);
subtypes = subtypes->next;
}
tmp = ctxt->state;
xmlAutomataNewCountedTrans(ctxt->am, tmp, oldstate,
counter);
ctxt->state = xmlAutomataNewCounterTrans(ctxt->am, tmp,
NULL, counter);
if (type->minOccurs == 0) {
xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
}
} else {
subtypes = type->subtypes;
while (subtypes != NULL) {
xmlSchemaBuildAContentModel(subtypes, ctxt, name);
subtypes = subtypes->next;
}
if (type->minOccurs == 0) {
xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
}
}
}
break;
}
case XML_SCHEMA_TYPE_CHOICE: {
xmlSchemaTypePtr subtypes;
xmlAutomataStatePtr start, end;
start = ctxt->state;
end = xmlAutomataNewState(ctxt->am);
/*
* iterate over the subtypes and remerge the end with an
* epsilon transition
*/
if (type->maxOccurs == 1) {
subtypes = type->subtypes;
while (subtypes != NULL) {
ctxt->state = start;
xmlSchemaBuildAContentModel(subtypes, ctxt, name);
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, end);
subtypes = subtypes->next;
}
} else {
int counter;
xmlAutomataStatePtr hop;
int maxOccurs = type->maxOccurs == UNBOUNDED ?
UNBOUNDED : type->maxOccurs - 1;
int minOccurs = type->minOccurs < 1 ? 0 : type->minOccurs - 1;
/*
* use a counter to keep track of the number of transtions
* which went through the choice.
*/
counter = xmlAutomataNewCounter(ctxt->am, minOccurs, maxOccurs);
hop = xmlAutomataNewState(ctxt->am);
subtypes = type->subtypes;
while (subtypes != NULL) {
ctxt->state = start;
xmlSchemaBuildAContentModel(subtypes, ctxt, name);
xmlAutomataNewEpsilon(ctxt->am, ctxt->state, hop);
subtypes = subtypes->next;
}
xmlAutomataNewCountedTrans(ctxt->am, hop, start, counter);
xmlAutomataNewCounterTrans(ctxt->am, hop, end, counter);
}
if (type->minOccurs == 0) {
xmlAutomataNewEpsilon(ctxt->am, start, end);
}
ctxt->state = end;
break;
}
case XML_SCHEMA_TYPE_ALL: {
xmlAutomataStatePtr start;
xmlSchemaTypePtr subtypes;
xmlSchemaElementPtr elem = (xmlSchemaElementPtr) type;
int lax;
subtypes = type->subtypes;
if (subtypes == NULL)
break;
start = ctxt->state;
while (subtypes != NULL) {
ctxt->state = start;
elem = (xmlSchemaElementPtr) subtypes;
/* TODO : handle the namespace too */
if ((elem->minOccurs == 1) && (elem->maxOccurs == 1)) {
xmlAutomataNewOnceTrans(ctxt->am, ctxt->state, ctxt->state,
elem->name, 1, 1, subtypes);
} else {
xmlAutomataNewCountTrans(ctxt->am, ctxt->state, ctxt->state,
elem->name, elem->minOccurs,
elem->maxOccurs, subtypes);
}
subtypes = subtypes->next;
}
lax = type->minOccurs == 0;
ctxt->state = xmlAutomataNewAllTrans(ctxt->am, ctxt->state, NULL,
lax);
break;
}
case XML_SCHEMA_TYPE_RESTRICTION:
if (type->subtypes != NULL)
xmlSchemaBuildAContentModel(type->subtypes, ctxt, name);
break;
case XML_SCHEMA_TYPE_EXTENSION:
if (type->baseType != NULL) {
xmlSchemaTypePtr subtypes;
xmlSchemaBuildAContentModel(type->baseType, ctxt, name);
subtypes = type->subtypes;
while (subtypes != NULL) {
xmlSchemaBuildAContentModel(subtypes, ctxt, name);
subtypes = subtypes->next;
}
} else if (type->subtypes != NULL)
xmlSchemaBuildAContentModel(type->subtypes, ctxt, name);
break;
case XML_SCHEMA_TYPE_GROUP:
if (type->subtypes == NULL) {
}
case XML_SCHEMA_TYPE_COMPLEX:
case XML_SCHEMA_TYPE_COMPLEX_CONTENT:
if (type->subtypes != NULL)
xmlSchemaBuildAContentModel(type->subtypes, ctxt, name);
break;
default:
xmlGenericError(xmlGenericErrorContext,
"Found unexpected type %d in %s content model\n",
type->type, name);
return;
}
}
/**
* xmlSchemaBuildContentModel:
* @elem: the element
* @ctxt: the schema parser context
* @name: the element name
*
* Builds the content model of the element.
*/
static void
xmlSchemaBuildContentModel(xmlSchemaElementPtr elem,
xmlSchemaParserCtxtPtr ctxt,
const xmlChar *name) {
xmlAutomataStatePtr start;
if (elem->contModel != NULL)
return;
if (elem->subtypes == NULL) {
elem->contentType = XML_SCHEMA_CONTENT_ANY;
return;
}
if (elem->subtypes->type != XML_SCHEMA_TYPE_COMPLEX)
return;
if (elem->subtypes->contentType == XML_SCHEMA_CONTENT_BASIC)
return;
#ifdef DEBUG_CONTENT
xmlGenericError(xmlGenericErrorContext,
"Building content model for %s\n", name);
#endif
ctxt->am = xmlNewAutomata();
if (ctxt->am == NULL) {
xmlGenericError(xmlGenericErrorContext,
"Cannot create automata for elem %s\n", name);
return;
}
start = ctxt->state = xmlAutomataGetInitState(ctxt->am);
xmlSchemaBuildAContentModel(elem->subtypes, ctxt, name);
xmlAutomataSetFinalState(ctxt->am, ctxt->state);
elem->contModel = xmlAutomataCompile(ctxt->am);
if (elem->contModel == NULL) {
xmlSchemaErrorContext(ctxt, NULL, elem->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"failed to compile %s content model\n",
name);
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
ctxt->nberrors++;
} else if (xmlRegexpIsDeterminist(elem->contModel) != 1) {
xmlSchemaErrorContext(ctxt, NULL, elem->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Content model of %s is not determinist:\n", name);
ctxt->err = XML_SCHEMAS_ERR_NOTDETERMINIST;
ctxt->nberrors++;
} else {
#ifdef DEBUG_CONTENT_REGEXP
xmlGenericError(xmlGenericErrorContext,
"Content model of %s:\n", name);
xmlRegexpPrint(stderr, elem->contModel);
#endif
}
ctxt->state = NULL;
xmlFreeAutomata(ctxt->am);
ctxt->am = NULL;
}
/**
* xmlSchemaRefFixupCallback:
* @elem: the schema element context
* @ctxt: the schema parser context
*
* Free the resources associated to the schema parser context
*/
static void
xmlSchemaRefFixupCallback(xmlSchemaElementPtr elem,
xmlSchemaParserCtxtPtr ctxt,
const xmlChar *name,
const xmlChar *context ATTRIBUTE_UNUSED,
const xmlChar *namespace ATTRIBUTE_UNUSED)
{
if ((ctxt == NULL) || (elem == NULL))
return;
if (elem->ref != NULL) {
xmlSchemaElementPtr elemDecl;
if (elem->subtypes != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, elem->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: element %s have both ref and subtype\n",
name);
return;
}
elemDecl = xmlHashLookup2(ctxt->schema->elemDecl,
elem->ref, elem->refNs);
if (elemDecl == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, elem->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: element %s ref to %s not found\n",
name, elem->ref);
return;
}
elem->refDecl = elemDecl;
} else if (elem->namedType != NULL) {
xmlSchemaTypePtr typeDecl;
if (elem->subtypes != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, elem->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: element %s have both type and subtype\n",
name);
return;
}
typeDecl = xmlSchemaGetType(ctxt->schema, elem->namedType,
elem->namedTypeNs);
if (typeDecl == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, elem->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: element %s type %s not found\n",
name, elem->namedType);
return;
}
elem->subtypes = typeDecl;
}
}
/**
* xmlSchemaTypeFixup:
* @typeDecl: the schema type definition
* @ctxt: the schema parser context
*
* Fixes the content model of the type.
*/
static void
xmlSchemaTypeFixup(xmlSchemaTypePtr typeDecl,
xmlSchemaParserCtxtPtr ctxt,
const xmlChar *name)
{
if (typeDecl == NULL)
return;
if (name == NULL)
name = typeDecl->name;
if (typeDecl->contentType == XML_SCHEMA_CONTENT_UNKNOWN) {
switch (typeDecl->type) {
case XML_SCHEMA_TYPE_SIMPLE_CONTENT: {
xmlSchemaTypeFixup(typeDecl->subtypes, ctxt, NULL);
if (typeDecl->subtypes != NULL)
typeDecl->contentType = typeDecl->subtypes->contentType;
break;
}
case XML_SCHEMA_TYPE_RESTRICTION: {
if (typeDecl->subtypes != NULL)
xmlSchemaTypeFixup(typeDecl->subtypes, ctxt, NULL);
if (typeDecl->base != NULL) {
xmlSchemaTypePtr baseType;
baseType = xmlSchemaGetType(ctxt->schema, typeDecl->base,
typeDecl->baseNs);
if (baseType == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: type %s base type %s not found\n",
name, typeDecl->base);
}
typeDecl->baseType = baseType;
}
if (typeDecl->subtypes == NULL)
/* 1.1.1 */
typeDecl->contentType = XML_SCHEMA_CONTENT_EMPTY;
else if ((typeDecl->subtypes->subtypes == NULL) &&
((typeDecl->subtypes->type == XML_SCHEMA_TYPE_ALL) ||
(typeDecl->subtypes->type == XML_SCHEMA_TYPE_SEQUENCE)))
/* 1.1.2 */
typeDecl->contentType = XML_SCHEMA_CONTENT_EMPTY;
else if ((typeDecl->subtypes->type == XML_SCHEMA_TYPE_CHOICE) &&
(typeDecl->subtypes->subtypes == NULL))
/* 1.1.3 */
typeDecl->contentType = XML_SCHEMA_CONTENT_EMPTY;
else {
/* 1.2 and 2.X are applied at the other layer */
typeDecl->contentType = XML_SCHEMA_CONTENT_ELEMENTS;
}
break;
}
case XML_SCHEMA_TYPE_EXTENSION: {
xmlSchemaContentType explicitContentType;
xmlSchemaTypePtr base;
if (typeDecl->base != NULL) {
xmlSchemaTypePtr baseType;
baseType = xmlSchemaGetType(ctxt->schema, typeDecl->base,
typeDecl->baseNs);
if (baseType == NULL) {
ctxt->nberrors++;
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: type %s base type %s not found\n",
name, typeDecl->base);
}
typeDecl->baseType = baseType;
}
if (typeDecl->subtypes != NULL)
xmlSchemaTypeFixup(typeDecl->subtypes, ctxt, NULL);
explicitContentType = XML_SCHEMA_CONTENT_ELEMENTS;
if (typeDecl->subtypes == NULL)
/* 1.1.1 */
explicitContentType = XML_SCHEMA_CONTENT_EMPTY;
else if ((typeDecl->subtypes->subtypes == NULL) &&
((typeDecl->subtypes->type == XML_SCHEMA_TYPE_ALL) ||
(typeDecl->subtypes->type == XML_SCHEMA_TYPE_SEQUENCE)))
/* 1.1.2 */
explicitContentType = XML_SCHEMA_CONTENT_EMPTY;
else if ((typeDecl->subtypes->type == XML_SCHEMA_TYPE_CHOICE) &&
(typeDecl->subtypes->subtypes == NULL))
/* 1.1.3 */
explicitContentType = XML_SCHEMA_CONTENT_EMPTY;
base = xmlSchemaGetType(ctxt->schema, typeDecl->base,
typeDecl->baseNs);
if (base == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, typeDecl->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: base type %s of type %s not found\n",
typeDecl->base, name);
return;
}
xmlSchemaTypeFixup(base, ctxt, NULL);
if (explicitContentType == XML_SCHEMA_CONTENT_EMPTY) {
/* 2.1 */
typeDecl->contentType = base->contentType;
} else if (base->contentType == XML_SCHEMA_CONTENT_EMPTY) {
/* 2.2 imbitable ! */
typeDecl->contentType = XML_SCHEMA_CONTENT_ELEMENTS;
} else {
/* 2.3 imbitable pareil ! */
typeDecl->contentType = XML_SCHEMA_CONTENT_ELEMENTS;
}
break;
}
case XML_SCHEMA_TYPE_COMPLEX: {
if (typeDecl->subtypes == NULL) {
typeDecl->contentType = XML_SCHEMA_CONTENT_EMPTY;
} else {
if (typeDecl->flags & XML_SCHEMAS_TYPE_MIXED)
typeDecl->contentType = XML_SCHEMA_CONTENT_MIXED;
else {
xmlSchemaTypeFixup(typeDecl->subtypes, ctxt, NULL);
if (typeDecl->subtypes != NULL)
typeDecl->contentType =
typeDecl->subtypes->contentType;
}
}
break;
}
case XML_SCHEMA_TYPE_COMPLEX_CONTENT: {
if (typeDecl->subtypes == NULL) {
typeDecl->contentType = XML_SCHEMA_CONTENT_EMPTY;
} else {
if (typeDecl->flags & XML_SCHEMAS_TYPE_MIXED)
typeDecl->contentType = XML_SCHEMA_CONTENT_MIXED;
else {
xmlSchemaTypeFixup(typeDecl->subtypes, ctxt, NULL);
if (typeDecl->subtypes != NULL)
typeDecl->contentType =
typeDecl->subtypes->contentType;
}
}
break;
}
case XML_SCHEMA_TYPE_SEQUENCE:
case XML_SCHEMA_TYPE_GROUP:
case XML_SCHEMA_TYPE_ALL:
case XML_SCHEMA_TYPE_CHOICE:
typeDecl->contentType = XML_SCHEMA_CONTENT_ELEMENTS;
break;
case XML_SCHEMA_TYPE_BASIC:
case XML_SCHEMA_TYPE_ANY:
case XML_SCHEMA_TYPE_FACET:
case XML_SCHEMA_TYPE_SIMPLE:
case XML_SCHEMA_TYPE_UR:
case XML_SCHEMA_TYPE_ELEMENT:
case XML_SCHEMA_TYPE_ATTRIBUTE:
case XML_SCHEMA_TYPE_ATTRIBUTEGROUP:
case XML_SCHEMA_TYPE_NOTATION:
case XML_SCHEMA_TYPE_LIST:
case XML_SCHEMA_TYPE_UNION:
case XML_SCHEMA_FACET_MININCLUSIVE:
case XML_SCHEMA_FACET_MINEXCLUSIVE:
case XML_SCHEMA_FACET_MAXINCLUSIVE:
case XML_SCHEMA_FACET_MAXEXCLUSIVE:
case XML_SCHEMA_FACET_TOTALDIGITS:
case XML_SCHEMA_FACET_FRACTIONDIGITS:
case XML_SCHEMA_FACET_PATTERN:
case XML_SCHEMA_FACET_ENUMERATION:
case XML_SCHEMA_FACET_WHITESPACE:
case XML_SCHEMA_FACET_LENGTH:
case XML_SCHEMA_FACET_MAXLENGTH:
case XML_SCHEMA_FACET_MINLENGTH:
typeDecl->contentType = XML_SCHEMA_CONTENT_SIMPLE;
break;
}
}
#ifdef DEBUG_TYPE
if (typeDecl->node != NULL) {
xmlGenericError(xmlGenericErrorContext,
"Type of %s : %s:%d :", name, typeDecl->node->doc->URL,
xmlGetLineNo(typeDecl->node));
} else {
xmlGenericError(xmlGenericErrorContext,
"Type of %s :", name);
}
switch (typeDecl->contentType) {
case XML_SCHEMA_CONTENT_SIMPLE:
xmlGenericError(xmlGenericErrorContext,
"simple\n"); break;
case XML_SCHEMA_CONTENT_ELEMENTS:
xmlGenericError(xmlGenericErrorContext,
"elements\n"); break;
case XML_SCHEMA_CONTENT_UNKNOWN:
xmlGenericError(xmlGenericErrorContext,
"unknown !!!\n"); break;
case XML_SCHEMA_CONTENT_EMPTY:
xmlGenericError(xmlGenericErrorContext,
"empty\n"); break;
case XML_SCHEMA_CONTENT_MIXED:
xmlGenericError(xmlGenericErrorContext,
"mixed\n"); break;
case XML_SCHEMA_CONTENT_MIXED_OR_ELEMENTS:
xmlGenericError(xmlGenericErrorContext,
"mixed or elems\n"); break;
case XML_SCHEMA_CONTENT_BASIC:
xmlGenericError(xmlGenericErrorContext,
"basic\n"); break;
default:
xmlGenericError(xmlGenericErrorContext,
"not registered !!!\n"); break;
}
#endif
}
/**
* xmlSchemaCheckFacet:
* @facet: the facet
* @typeDecl: the schema type definition
* @ctxt: the schema parser context or NULL
* @name: name of the type
*
* Checks the default values types, especially for facets
*
* Returns 0 if okay or -1 in cae of error
*/
int
xmlSchemaCheckFacet(xmlSchemaFacetPtr facet,
xmlSchemaTypePtr typeDecl,
xmlSchemaParserCtxtPtr ctxt,
const xmlChar *name)
{
static xmlSchemaTypePtr nonNegativeIntegerType = NULL;
int ret = 0;
if (nonNegativeIntegerType == NULL) {
nonNegativeIntegerType = xmlSchemaGetPredefinedType(
BAD_CAST "nonNegativeInteger", xmlSchemaNs);
}
switch (facet->type) {
case XML_SCHEMA_FACET_MININCLUSIVE:
case XML_SCHEMA_FACET_MINEXCLUSIVE:
case XML_SCHEMA_FACET_MAXINCLUSIVE:
case XML_SCHEMA_FACET_MAXEXCLUSIVE: {
/*
* Okay we need to validate the value
* at that point.
*/
xmlSchemaValidCtxtPtr vctxt;
vctxt = xmlSchemaNewValidCtxt(NULL);
if (vctxt == NULL)
break;
xmlSchemaValidateSimpleValue(vctxt, typeDecl,
facet->value);
facet->val = vctxt->value;
vctxt->value = NULL;
if (facet->val == NULL) {
/* error code */
if (ctxt != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL,
facet->node, NULL);
ctxt->error(ctxt->userData,
"Schemas: type %s facet value %s invalid\n",
name, facet->value);
}
ret = -1;
}
xmlSchemaFreeValidCtxt(vctxt);
break;
}
case XML_SCHEMA_FACET_ENUMERATION: {
/*
* Okay we need to validate the value
* at that point.
*/
xmlSchemaValidCtxtPtr vctxt;
int tmp;
vctxt = xmlSchemaNewValidCtxt(NULL);
if (vctxt == NULL)
break;
tmp = xmlSchemaValidateSimpleValue(vctxt, typeDecl,
facet->value);
if (tmp != 0) {
if (ctxt != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL,
facet->node, NULL);
ctxt->error(ctxt->userData,
"Schemas: type %s enumeration value %s invalid\n",
name, facet->value);
}
ret = -1;
}
xmlSchemaFreeValidCtxt(vctxt);
break;
}
case XML_SCHEMA_FACET_PATTERN:
facet->regexp = xmlRegexpCompile(facet->value);
if (facet->regexp == NULL) {
/* error code */
if (ctxt != NULL) {
ctxt->nberrors++;
ctxt->error(ctxt->userData,
"Schemas: type %s facet regexp %s invalid\n",
name, facet->value);
}
ret = -1;
}
break;
case XML_SCHEMA_FACET_TOTALDIGITS:
case XML_SCHEMA_FACET_FRACTIONDIGITS:
case XML_SCHEMA_FACET_LENGTH:
case XML_SCHEMA_FACET_MAXLENGTH:
case XML_SCHEMA_FACET_MINLENGTH: {
int tmp;
tmp = xmlSchemaValidatePredefinedType(
nonNegativeIntegerType, facet->value,
&facet->val);
if (tmp != 0) {
/* error code */
if (ctxt != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL,
facet->node, NULL);
ctxt->error(ctxt->userData,
"Schemas: type %s facet value %s invalid\n",
name, facet->value);
}
ret = -1;
}
break;
}
case XML_SCHEMA_FACET_WHITESPACE: {
if (xmlStrEqual(facet->value, BAD_CAST"preserve")) {
facet->whitespace = XML_SCHEMAS_FACET_PRESERVE;
} else if (xmlStrEqual(facet->value,
BAD_CAST"replace")) {
facet->whitespace = XML_SCHEMAS_FACET_REPLACE;
} else if (xmlStrEqual(facet->value,
BAD_CAST"collapse")) {
facet->whitespace = XML_SCHEMAS_FACET_COLLAPSE;
} else {
if (ctxt != NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL,
facet->node, NULL);
ctxt->error(ctxt->userData,
"Schemas: type %s whiteSpace value %s invalid\n",
name, facet->value);
}
ret = -1;
}
}
default:
break;
}
return(ret);
}
/**
* xmlSchemaCheckDefaults:
* @typeDecl: the schema type definition
* @ctxt: the schema parser context
*
* Checks the default values types, especially for facets
*/
static void
xmlSchemaCheckDefaults(xmlSchemaTypePtr typeDecl,
xmlSchemaParserCtxtPtr ctxt,
const xmlChar *name)
{
if (name == NULL)
name = typeDecl->name;
if (typeDecl->type == XML_SCHEMA_TYPE_RESTRICTION) {
if (typeDecl->facets != NULL) {
xmlSchemaFacetPtr facet = typeDecl->facets;
while (facet != NULL) {
xmlSchemaCheckFacet(facet, typeDecl, ctxt, name);
facet = facet->next;
}
}
}
}
/**
* xmlSchemaAttrGrpFixup:
* @attrgrpDecl: the schema attribute definition
* @ctxt: the schema parser context
* @name: the attribute name
*
* Fixes finish doing the computations on the attributes definitions
*/
static void
xmlSchemaAttrGrpFixup(xmlSchemaAttributeGroupPtr attrgrpDecl,
xmlSchemaParserCtxtPtr ctxt,
const xmlChar *name)
{
if (name == NULL)
name = attrgrpDecl->name;
if (attrgrpDecl->attributes != NULL)
return;
if (attrgrpDecl->ref != NULL) {
xmlSchemaAttributeGroupPtr ref;
ref = xmlHashLookup2(ctxt->schema->attrgrpDecl, attrgrpDecl->ref,
attrgrpDecl->refNs);
if (ref == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, attrgrpDecl->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: attribute group %s reference %s not found\n",
name, attrgrpDecl->ref);
return;
}
xmlSchemaAttrGrpFixup(ref, ctxt, NULL);
attrgrpDecl->attributes = ref->attributes;
} else {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, attrgrpDecl->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: attribute %s has no attributes nor reference\n",
name);
}
}
/**
* xmlSchemaAttrFixup:
* @attrDecl: the schema attribute definition
* @ctxt: the schema parser context
* @name: the attribute name
*
* Fixes finish doing the computations on the attributes definitions
*/
static void
xmlSchemaAttrFixup(xmlSchemaAttributePtr attrDecl,
xmlSchemaParserCtxtPtr ctxt,
const xmlChar *name)
{
if (name == NULL)
name = attrDecl->name;
if (attrDecl->subtypes != NULL)
return;
if (attrDecl->typeName != NULL) {
xmlSchemaTypePtr type;
type = xmlSchemaGetType(ctxt->schema, attrDecl->typeName,
attrDecl->typeNs);
if (type == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, attrDecl->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: attribute %s type %s not found\n",
name, attrDecl->typeName);
}
attrDecl->subtypes = type;
} else if (attrDecl->ref != NULL) {
xmlSchemaAttributePtr ref;
ref = xmlHashLookup2(ctxt->schema->attrDecl, attrDecl->ref,
attrDecl->refNs);
if (ref == NULL) {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, attrDecl->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: attribute %s reference %s not found\n",
name, attrDecl->ref);
return;
}
xmlSchemaAttrFixup(ref, ctxt, NULL);
attrDecl->subtypes = ref->subtypes;
} else {
ctxt->nberrors++;
xmlSchemaErrorContext(ctxt, NULL, attrDecl->node, NULL);
if ((ctxt != NULL) && (ctxt->error != NULL))
ctxt->error(ctxt->userData,
"Schemas: attribute %s has no type nor reference\n",
name);
}
}
/**
* xmlSchemaParse:
* @ctxt: a schema validation context
*
* parse a schema definition resource and build an internal
* XML Shema struture which can be used to validate instances.
* *WARNING* this interface is highly subject to change
*
* Returns the internal XML Schema structure built from the resource or
* NULL in case of error
*/
xmlSchemaPtr
xmlSchemaParse(xmlSchemaParserCtxtPtr ctxt)
{
xmlSchemaPtr ret = NULL;
xmlDocPtr doc;
xmlNodePtr root, cur, delete;
int nberrors;
xmlSchemaInitTypes();
if (ctxt == NULL)
return (NULL);
nberrors = ctxt->nberrors;
ctxt->nberrors = 0;
ctxt->counter = 0;
ctxt->container = NULL;
/*
* First step is to parse the input document into an DOM/Infoset
*/
if (ctxt->URL != NULL) {
doc = xmlParseFile((const char *) ctxt->URL);
if (doc == NULL) {
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"xmlSchemaParse: could not load %s\n", ctxt->URL);
return (NULL);
}
} else if (ctxt->buffer != NULL) {
doc = xmlParseMemory(ctxt->buffer, ctxt->size);
if (doc == NULL) {
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"xmlSchemaParse: could not parse schemas\n");
return (NULL);
}
doc->URL = xmlStrdup(BAD_CAST "in_memory_buffer");
ctxt->URL = xmlStrdup(BAD_CAST "in_memory_buffer");
} else {
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"xmlSchemaParse: nothing to parse\n");
return (NULL);
}
/*
* Then extract the root and Schema parse it
*/
root = xmlDocGetRootElement(doc);
if (root == NULL) {
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "xmlSchemaParse: %s is empty\n",
ctxt->URL);
return (NULL);
}
/*
* Remove all the blank text nodes
*/
delete = NULL;
cur = root;
while (cur != NULL) {
if (delete != NULL) {
xmlUnlinkNode(delete);
xmlFreeNode(delete);
delete = NULL;
}
if (cur->type == XML_TEXT_NODE) {
if (IS_BLANK_NODE(cur)) {
if (xmlNodeGetSpacePreserve(cur) != 1) {
delete = cur;
}
}
} else if ((cur->type != XML_ELEMENT_NODE) &&
(cur->type != XML_CDATA_SECTION_NODE)) {
delete = cur;
goto skip_children;
}
/*
* Skip to next node
*/
if (cur->children != NULL) {
if ((cur->children->type != XML_ENTITY_DECL) &&
(cur->children->type != XML_ENTITY_REF_NODE) &&
(cur->children->type != XML_ENTITY_NODE)) {
cur = cur->children;
continue;
}
}
skip_children:
if (cur->next != NULL) {
cur = cur->next;
continue;
}
do {
cur = cur->parent;
if (cur == NULL)
break;
if (cur == root) {
cur = NULL;
break;
}
if (cur->next != NULL) {
cur = cur->next;
break;
}
} while (cur != NULL);
}
if (delete != NULL) {
xmlUnlinkNode(delete);
xmlFreeNode(delete);
delete = NULL;
}
/*
* Then do the parsing for good
*/
ret = xmlSchemaParseSchema(ctxt, root);
if (ret == NULL)
return(NULL);
ret->doc = doc;
/*
* Then fix all the references.
*/
ctxt->schema = ret;
xmlHashScanFull(ret->elemDecl,
(xmlHashScannerFull) xmlSchemaRefFixupCallback, ctxt);
/*
* Then fixup all types properties
*/
xmlHashScan(ret->typeDecl, (xmlHashScanner) xmlSchemaTypeFixup, ctxt);
/*
* Then build the content model for all elements
*/
xmlHashScan(ret->elemDecl,
(xmlHashScanner) xmlSchemaBuildContentModel, ctxt);
/*
* Then check the defaults part of the type like facets values
*/
xmlHashScan(ret->typeDecl, (xmlHashScanner) xmlSchemaCheckDefaults, ctxt);
/*
* Then fixup all attributes declarations
*/
xmlHashScan(ret->attrDecl, (xmlHashScanner) xmlSchemaAttrFixup, ctxt);
/*
* Then fixup all attributes group declarations
*/
xmlHashScan(ret->attrgrpDecl, (xmlHashScanner) xmlSchemaAttrGrpFixup, ctxt);
if (ctxt->nberrors != 0) {
xmlSchemaFree(ret);
ret = NULL;
}
return (ret);
}
/**
* xmlSchemaSetParserErrors:
* @ctxt: a schema validation context
* @err: the error callback
* @warn: the warning callback
* @ctx: contextual data for the callbacks
*
* Set the callback functions used to handle errors for a validation context
*/
void
xmlSchemaSetParserErrors(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaValidityErrorFunc err,
xmlSchemaValidityWarningFunc warn, void *ctx) {
if (ctxt == NULL)
return;
ctxt->error = err;
ctxt->warning = warn;
ctxt->userData = ctx;
}
/**
* xmlSchemaFacetTypeToString:
* @type: the facet type
*
* Convert the xmlSchemaTypeType to a char string.
*
* Returns the char string representation of the facet type if the
* type is a facet and an "Internal Error" string otherwise.
*/
static const char *
xmlSchemaFacetTypeToString(xmlSchemaTypeType type)
{
switch (type) {
case XML_SCHEMA_FACET_PATTERN:
return ("pattern");
case XML_SCHEMA_FACET_MAXEXCLUSIVE:
return ("maxExclusive");
case XML_SCHEMA_FACET_MAXINCLUSIVE:
return ("maxInclusive");
case XML_SCHEMA_FACET_MINEXCLUSIVE:
return ("minExclusive");
case XML_SCHEMA_FACET_MININCLUSIVE:
return ("minInclusive");
case XML_SCHEMA_FACET_WHITESPACE:
return ("whiteSpace");
case XML_SCHEMA_FACET_ENUMERATION:
return ("enumeration");
case XML_SCHEMA_FACET_LENGTH:
return ("length");
case XML_SCHEMA_FACET_MAXLENGTH:
return ("maxLength");
case XML_SCHEMA_FACET_MINLENGTH:
return ("minLength");
case XML_SCHEMA_FACET_TOTALDIGITS:
return ("totalDigits");
case XML_SCHEMA_FACET_FRACTIONDIGITS:
return ("fractionDigits");
default:
break;
}
return ("Internal Error");
}
/**
* xmlSchemaValidateFacets:
* @ctxt: a schema validation context
* @base: the base type
* @facets: the list of facets to check
* @value: the lexical repr of the value to validate
* @val: the precomputed value
*
* Check a value against all facet conditions
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateFacets(xmlSchemaValidCtxtPtr ctxt,
xmlSchemaTypePtr base,
xmlSchemaFacetPtr facets,
xmlChar *value) {
int ret = 0;
int tmp = 0;
xmlSchemaTypeType type;
xmlSchemaFacetPtr facet = facets;
while (facet != NULL) {
type = facet->type;
if (type == XML_SCHEMA_FACET_ENUMERATION) {
tmp = 1;
while (facet != NULL) {
tmp = xmlSchemaValidateFacet(base, facet, value, ctxt->value);
if (tmp == 0) {
return 0;
}
facet = facet->next;
}
} else
tmp = xmlSchemaValidateFacet(base, facet, value, ctxt->value);
if (tmp != 0) {
ret = tmp;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Failed to validate type with facet %s\n",
xmlSchemaFacetTypeToString(type));
ctxt->err = XML_SCHEMAS_ERR_FACET;
}
if (facet != NULL)
facet = facet->next;
}
return (ret);
}
/************************************************************************
* *
* Simple type validation *
* *
************************************************************************/
/**
* xmlSchemaValidateSimpleValue:
* @ctxt: a schema validation context
* @type: the type declaration
* @value: the value to validate
*
* Validate a value against a simple type
*
* Returns 0 if the value is valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateSimpleValue(xmlSchemaValidCtxtPtr ctxt,
xmlSchemaTypePtr type,
xmlChar *value) {
int ret = 0;
/*
* First normalize the value accordingly to Schema Datatype
* 4.3.6 whiteSpace definition of the whiteSpace facet of type
*/
/*
* Then check the normalized value against the lexical space of the
* type.
*/
if (type->type == XML_SCHEMA_TYPE_BASIC) {
if (ctxt->value != NULL) {
xmlSchemaFreeValue(ctxt->value);
ctxt->value = NULL;
}
ret = xmlSchemaValPredefTypeNode(type, value, &(ctxt->value),
ctxt->cur);
if (ret != 0) {
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Failed to validate basic type %s\n", type->name);
ctxt->err = XML_SCHEMAS_ERR_VALUE;
}
} else if (type->type == XML_SCHEMA_TYPE_RESTRICTION) {
xmlSchemaTypePtr base;
xmlSchemaFacetPtr facet;
base = type->baseType;
if (base != NULL) {
ret = xmlSchemaValidateSimpleValue(ctxt, base, value);
} else if (type->subtypes != NULL) {
}
/*
* Do not validate facets when working on building the Schemas
*/
if (ctxt->schema != NULL) {
if (ret == 0) {
facet = type->facets;
ret = xmlSchemaValidateFacets(ctxt, base, facet, value);
}
}
} else if (type->type == XML_SCHEMA_TYPE_SIMPLE) {
xmlSchemaTypePtr base;
base = type->subtypes;
if (base != NULL) {
ret = xmlSchemaValidateSimpleValue(ctxt, base, value);
} else {
TODO
}
} else if (type->type == XML_SCHEMA_TYPE_LIST) {
xmlSchemaTypePtr base;
xmlChar *cur, *end, tmp;
int ret2;
base = type->subtypes;
if (base == NULL) {
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
ctxt->nberrors++;
if (ctxt->error != NULL) {
xmlSchemaErrorContext(NULL, ctxt->schema, type->node, NULL);
ctxt->error(ctxt->userData,
"Internal: List type %s has no base type\n",
type->name);
}
return(-1);
}
cur = value;
do {
while (IS_BLANK(*cur)) cur++;
end = cur;
while ((*end != 0) && (!(IS_BLANK(*end)))) end++;
if (end == cur)
break;
tmp = *end;
*end = 0;
ret2 = xmlSchemaValidateSimpleValue(ctxt, base, cur);
if (ret2 != 0)
ret = 1;
*end = tmp;
cur = end;
} while (*cur != 0);
} else {
TODO
}
return(ret);
}
/************************************************************************
* *
* DOM Validation code *
* *
************************************************************************/
static int xmlSchemaValidateContent(xmlSchemaValidCtxtPtr ctxt,
xmlNodePtr node);
static int xmlSchemaValidateAttributes(xmlSchemaValidCtxtPtr ctxt,
xmlNodePtr elem, xmlSchemaAttributePtr attributes);
static int xmlSchemaValidateType(xmlSchemaValidCtxtPtr ctxt,
xmlNodePtr elem, xmlSchemaElementPtr elemDecl, xmlSchemaTypePtr type);
/**
* xmlSchemaRegisterAttributes:
* @ctxt: a schema validation context
* @attrs: a list of attributes
*
* Register the list of attributes as the set to be validated on that element
*
* Returns -1 in case of error, 0 otherwise
*/
static int
xmlSchemaRegisterAttributes(xmlSchemaValidCtxtPtr ctxt,
xmlAttrPtr attrs) {
while (attrs != NULL) {
if ((attrs->ns != NULL) &&
(xmlStrEqual(attrs->ns->href, xmlSchemaInstanceNs))) {
attrs = attrs->next;
continue;
}
if (ctxt->attrNr >= ctxt->attrMax) {
xmlSchemaAttrStatePtr tmp;
ctxt->attrMax *= 2;
tmp = (xmlSchemaAttrStatePtr)
xmlRealloc(ctxt->attr, ctxt->attrMax *
sizeof(xmlSchemaAttrState));
if (tmp == NULL) {
ctxt->attrMax /= 2;
return(-1);
}
ctxt->attr = tmp;
}
ctxt->attr[ctxt->attrNr].attr = attrs;
ctxt->attr[ctxt->attrNr].state = XML_SCHEMAS_ATTR_UNKNOWN;
ctxt->attrNr++;
attrs = attrs->next;
}
return(0);
}
/**
* xmlSchemaCheckAttributes:
* @ctxt: a schema validation context
* @node: the node carrying it.
*
* Check that the registered set of attributes on the current node
* has been properly validated.
*
* Returns 0 if validity constraints are met, 1 otherwise.
*/
static int
xmlSchemaCheckAttributes(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr node) {
int ret = 0;
int i;
for (i = ctxt->attrBase;i < ctxt->attrNr;i++) {
if (ctxt->attr[i].attr == NULL)
break;
if (ctxt->attr[i].state == XML_SCHEMAS_ATTR_UNKNOWN) {
ret = 1;
ctxt->err = XML_SCHEMAS_ERR_ATTRUNKNOWN;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Attribute %s on %s is unknown\n",
ctxt->attr[i].attr->name,
node->name);
}
}
return(ret);
}
/**
* xmlSchemaValidateSimpleContent:
* @ctxt: a schema validation context
* @elem: an element
* @type: the type declaration
*
* Validate the content of an element expected to be a simple type
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateSimpleContent(xmlSchemaValidCtxtPtr ctxt,
xmlNodePtr node ATTRIBUTE_UNUSED) {
xmlNodePtr child;
xmlSchemaTypePtr type, base;
xmlChar *value;
int ret = 0;
child = ctxt->node;
type = ctxt->type;
/*
* Validation Rule: Element Locally Valid (Type): 3.1.3
*/
value = xmlNodeGetContent(child);
/* xmlSchemaValidateSimpleValue(ctxt, type, value); */
switch (type->type) {
case XML_SCHEMA_TYPE_RESTRICTION: {
xmlSchemaFacetPtr facet;
base = type->baseType;
if (base != NULL) {
ret = xmlSchemaValidateSimpleValue(ctxt, base, value);
} else {
TODO
}
if (ret == 0) {
facet = type->facets;
ret = xmlSchemaValidateFacets(ctxt, base, facet, value);
}
break;
}
default:
TODO
}
if (value != NULL)
xmlFree(value);
return(ret);
}
/**
* xmlSchemaValidateCheckNodeList
* @nodelist: the list of nodes
*
* Check the node list is only made of text nodes and entities pointing
* to text nodes
*
* Returns 1 if true, 0 if false and -1 in case of error
*/
static int
xmlSchemaValidateCheckNodeList(xmlNodePtr nodelist) {
while (nodelist != NULL) {
if (nodelist->type == XML_ENTITY_REF_NODE) {
TODO /* implement recursion in the entity content */
}
if ((nodelist->type != XML_TEXT_NODE) &&
(nodelist->type != XML_COMMENT_NODE) &&
(nodelist->type != XML_PI_NODE) &&
(nodelist->type != XML_PI_NODE)) {
return(0);
}
nodelist = nodelist->next;
}
return(1);
}
/**
* xmlSchemaSkipIgnored:
* @ctxt: a schema validation context
* @type: the current type context
* @node: the top node.
*
* Skip ignorable nodes in that context
*
* Returns the new sibling
* number otherwise and -1 in case of internal or API error.
*/
static xmlNodePtr
xmlSchemaSkipIgnored(xmlSchemaValidCtxtPtr ctxt ATTRIBUTE_UNUSED,
xmlSchemaTypePtr type,
xmlNodePtr node) {
int mixed = 0;
/*
* TODO complete and handle entities
*/
mixed = ((type->contentType == XML_SCHEMA_CONTENT_MIXED) ||
(type->contentType == XML_SCHEMA_CONTENT_MIXED_OR_ELEMENTS));
while ((node != NULL) &&
((node->type == XML_COMMENT_NODE) ||
((mixed == 1) && (node->type == XML_TEXT_NODE)) ||
(((type->contentType == XML_SCHEMA_CONTENT_ELEMENTS) &&
(node->type == XML_TEXT_NODE) &&
(IS_BLANK_NODE(node)))))) {
node = node->next;
}
return(node);
}
/**
* xmlSchemaValidateCallback:
* @ctxt: a schema validation context
* @name: the name of the element detected (might be NULL)
* @type: the type
*
* A transition has been made in the automata associated to an element
* content model
*/
static void
xmlSchemaValidateCallback(xmlSchemaValidCtxtPtr ctxt,
const xmlChar *name ATTRIBUTE_UNUSED,
xmlSchemaTypePtr type,
xmlNodePtr node) {
xmlSchemaTypePtr oldtype = ctxt->type;
xmlNodePtr oldnode = ctxt->node;
#ifdef DEBUG_CONTENT
xmlGenericError(xmlGenericErrorContext,
"xmlSchemaValidateCallback: %s, %s, %s\n",
name, type->name, node->name);
#endif
ctxt->type = type;
ctxt->node = node;
xmlSchemaValidateContent(ctxt, node);
ctxt->type = oldtype;
ctxt->node = oldnode;
}
#if 0
/**
* xmlSchemaValidateSimpleRestrictionType:
* @ctxt: a schema validation context
* @node: the top node.
*
* Validate the content of a restriction type.
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateSimpleRestrictionType(xmlSchemaValidCtxtPtr ctxt,
xmlNodePtr node)
{
xmlNodePtr child;
xmlSchemaTypePtr type;
int ret;
child = ctxt->node;
type = ctxt->type;
if ((ctxt == NULL) || (type == NULL)) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Internal error: xmlSchemaValidateSimpleRestrictionType %s\n",
node->name);
return (-1);
}
/*
* Only text and text based entities references shall be found there
*/
ret = xmlSchemaValidateCheckNodeList(child);
if (ret < 0) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Internal error: xmlSchemaValidateSimpleType %s content\n",
node->name);
return (-1);
} else if (ret == 0) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_NOTSIMPLE;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s content is not a simple type\n",
node->name);
return (-1);
}
ctxt->type = type->subtypes;
xmlSchemaValidateContent(ctxt, node);
ctxt->type = type;
return (ret);
}
#endif
/**
* xmlSchemaValidateSimpleType:
* @ctxt: a schema validation context
* @node: the top node.
*
* Validate the content of an simple type.
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateSimpleType(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr node) {
xmlNodePtr child;
xmlSchemaTypePtr type;
xmlAttrPtr attr;
int ret;
child = ctxt->node;
type = ctxt->type;
if ((ctxt == NULL) || (type == NULL)) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Internal error: xmlSchemaValidateSimpleType %s\n",
node->name);
return(-1);
}
/*
* Only text and text based entities references shall be found there
*/
ret = xmlSchemaValidateCheckNodeList(child);
if (ret < 0) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Internal error: xmlSchemaValidateSimpleType %s content\n",
node->name);
return(-1);
} else if (ret == 0) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_NOTSIMPLE;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s content is not a simple type\n",
node->name);
return(-1);
}
/*
* Validation Rule: Element Locally Valid (Type): 3.1.1
*/
attr = node->properties;
while (attr != NULL) {
if ((attr->ns == NULL) ||
(!xmlStrEqual(attr->ns->href, xmlSchemaInstanceNs)) ||
((!xmlStrEqual(attr->name, BAD_CAST"type")) &&
(!xmlStrEqual(attr->name, BAD_CAST"nil")) &&
(!xmlStrEqual(attr->name, BAD_CAST"schemasLocation")) &&
(!xmlStrEqual(attr->name, BAD_CAST"noNamespaceSchemaLocation")))) {
ctxt->err = XML_SCHEMAS_ERR_INVALIDATTR;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s: attribute %s should not be present\n",
node->name, attr->name);
return(ctxt->err);
}
}
ctxt->type = type->subtypes;
ret = xmlSchemaValidateSimpleContent(ctxt, node);
ctxt->type = type;
return(ret);
}
/**
* xmlSchemaValidateElementType:
* @ctxt: a schema validation context
* @node: the top node.
*
* Validate the content of an element type.
* Validation Rule: Element Locally Valid (Complex Type)
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateElementType(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr node) {
xmlNodePtr child;
xmlSchemaTypePtr type;
xmlRegExecCtxtPtr oldregexp; /* cont model of the parent */
xmlSchemaElementPtr decl;
int ret, attrBase;
oldregexp = ctxt->regexp;
child = ctxt->node;
type = ctxt->type;
if ((ctxt == NULL) || (type == NULL)) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Internal error: xmlSchemaValidateElementType\n",
node->name);
return(-1);
}
if (child == NULL) {
if (type->minOccurs > 0) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_MISSING;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s: missing child %s\n",
node->name, type->name);
}
return(ctxt->err);
}
/*
* Verify the element matches
*/
if (!xmlStrEqual(child->name, type->name)) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_WRONGELEM;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s: missing child %s found %s\n",
node->name, type->name, child->name);
return(ctxt->err);
}
/*
* Verify the attributes
*/
attrBase = ctxt->attrBase;
ctxt->attrBase = ctxt->attrNr;
xmlSchemaRegisterAttributes(ctxt, child->properties);
xmlSchemaValidateAttributes(ctxt, child, type->attributes);
/*
* Verify the element content recursively
*/
decl = (xmlSchemaElementPtr) type;
oldregexp = ctxt->regexp;
if (decl->contModel != NULL) {
ctxt->regexp = xmlRegNewExecCtxt(decl->contModel,
(xmlRegExecCallbacks) xmlSchemaValidateCallback,
ctxt);
#ifdef DEBUG_AUTOMATA
xmlGenericError(xmlGenericErrorContext,
"====> %s\n", node->name);
#endif
}
xmlSchemaValidateType(ctxt, child, (xmlSchemaElementPtr)type,
type->subtypes);
if (decl->contModel != NULL) {
ret = xmlRegExecPushString(ctxt->regexp, NULL, NULL);
#ifdef DEBUG_AUTOMATA
xmlGenericError(xmlGenericErrorContext,
"====> %s : %d\n", node->name, ret);
#endif
if (ret == 0) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_ELEMCONT;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s content check failed\n",
node->name);
} else if (ret < 0) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_ELEMCONT;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s content check failure\n",
node->name);
#ifdef DEBUG_CONTENT
} else {
xmlGenericError(xmlGenericErrorContext,
"Element %s content check succeeded\n", node->name);
#endif
}
xmlRegFreeExecCtxt(ctxt->regexp);
}
/*
* Verify that all attributes were Schemas-validated
*/
xmlSchemaCheckAttributes(ctxt, node);
ctxt->attrNr = ctxt->attrBase;
ctxt->attrBase = attrBase;
ctxt->regexp = oldregexp;
ctxt->node = child;
ctxt->type = type;
return(ctxt->err);
}
/**
* xmlSchemaValidateBasicType:
* @ctxt: a schema validation context
* @node: the top node.
*
* Validate the content of an element expected to be a basic type type
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateBasicType(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr node) {
int ret;
xmlNodePtr child, cur;
xmlSchemaTypePtr type;
xmlChar *value; /* lexical representation */
child = ctxt->node;
type = ctxt->type;
if ((ctxt == NULL) || (type == NULL)) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Internal error: xmlSchemaValidateBasicType\n",
node->name);
return(-1);
}
/*
* First check the content model of the node.
*/
cur = child;
while (cur != NULL) {
switch (cur->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
break;
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
TODO
break;
case XML_ELEMENT_NODE:
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INVALIDELEM;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s: child %s should not be present\n",
node->name, cur->name);
return(ctxt->err);
case XML_ATTRIBUTE_NODE:
case XML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_DOCUMENT_FRAG_NODE:
case XML_NOTATION_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_DTD_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
case XML_NAMESPACE_DECL:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INVALIDELEM;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s: node type %d unexpected here\n",
node->name, cur->type);
return(ctxt->err);
}
cur = cur->next;
}
if (child == NULL)
value = NULL;
else
value = xmlNodeGetContent(child->parent);
if (ctxt->value != NULL) {
xmlSchemaFreeValue(ctxt->value);
ctxt->value = NULL;
}
ret = xmlSchemaValidatePredefinedType(type, value, &(ctxt->value));
if (value != NULL)
xmlFree(value);
if (ret != 0) {
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s: failed to validate basic type %s\n",
node->name, type->name);
ctxt->err = XML_SCHEMAS_ERR_VALUE;
}
return(ret);
}
/**
* xmlSchemaValidateComplexType:
* @ctxt: a schema validation context
* @node: the top node.
*
* Validate the content of an element expected to be a complex type type
* xmlschema-1.html#cvc-complex-type
* Validation Rule: Element Locally Valid (Complex Type)
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateComplexType(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr node) {
xmlNodePtr child;
xmlSchemaTypePtr type, subtype;
int ret;
child = ctxt->node;
type = ctxt->type;
ctxt->cur = node;
switch (type->contentType) {
case XML_SCHEMA_CONTENT_EMPTY:
if (child != NULL) {
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s is supposed to be empty\n",
node->name);
}
if (type->attributes != NULL) {
xmlSchemaValidateAttributes(ctxt, node, type->attributes);
}
subtype = type->subtypes;
while (subtype != NULL) {
ctxt->type = subtype;
xmlSchemaValidateComplexType(ctxt, node);
subtype = subtype->next;
}
break;
case XML_SCHEMA_CONTENT_ELEMENTS:
case XML_SCHEMA_CONTENT_MIXED:
case XML_SCHEMA_CONTENT_MIXED_OR_ELEMENTS:
/*
* Skip ignorable nodes in that context
*/
child = xmlSchemaSkipIgnored(ctxt, type, child);
while (child != NULL) {
if (child->type == XML_ELEMENT_NODE) {
ret = xmlRegExecPushString(ctxt->regexp,
child->name, child);
#ifdef DEBUG_AUTOMATA
if (ret < 0)
xmlGenericError(xmlGenericErrorContext,
" --> %s Error\n", child->name);
else
xmlGenericError(xmlGenericErrorContext,
" --> %s\n", child->name);
#endif
}
child = child->next;
/*
* Skip ignorable nodes in that context
*/
child = xmlSchemaSkipIgnored(ctxt, type, child);
}
break;
case XML_SCHEMA_CONTENT_BASIC: {
if (type->subtypes != NULL) {
ctxt->type = type->subtypes;
xmlSchemaValidateComplexType(ctxt, node);
}
if (type->baseType != NULL) {
ctxt->type = type->baseType;
xmlSchemaValidateBasicType(ctxt, node);
}
if (type->attributes != NULL) {
xmlSchemaValidateAttributes(ctxt, node, type->attributes);
}
ctxt->type = type;
break;
}
default:
TODO
xmlGenericError(xmlGenericErrorContext,
"unimplemented content type %d\n",
type->contentType);
}
return(ctxt->err);
}
/**
* xmlSchemaValidateContent:
* @ctxt: a schema validation context
* @elem: an element
* @type: the type declaration
*
* Validate the content of an element against the type.
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateContent(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr node) {
xmlNodePtr child;
xmlSchemaTypePtr type;
child = ctxt->node;
type = ctxt->type;
ctxt->cur = node;
xmlSchemaValidateAttributes(ctxt, node, type->attributes);
ctxt->cur = node;
switch (type->type) {
case XML_SCHEMA_TYPE_ANY:
/* Any type will do it, fine */
TODO /* handle recursivity */
break;
case XML_SCHEMA_TYPE_COMPLEX:
xmlSchemaValidateComplexType(ctxt, node);
break;
case XML_SCHEMA_TYPE_ELEMENT: {
xmlSchemaElementPtr decl = (xmlSchemaElementPtr) type;
/*
* Handle element reference here
*/
if (decl->ref != NULL) {
if (decl->refDecl == NULL) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Internal error: element reference %s not resolved\n",
decl->ref);
return(-1);
}
ctxt->type = (xmlSchemaTypePtr) decl->refDecl;
decl = decl->refDecl;
}
xmlSchemaValidateElementType(ctxt, node);
ctxt->type = type;
break;
}
case XML_SCHEMA_TYPE_BASIC:
xmlSchemaValidateBasicType(ctxt, node);
break;
case XML_SCHEMA_TYPE_FACET:
TODO
break;
case XML_SCHEMA_TYPE_SIMPLE:
xmlSchemaValidateSimpleType(ctxt, node);
break;
case XML_SCHEMA_TYPE_SEQUENCE:
TODO
break;
case XML_SCHEMA_TYPE_CHOICE:
TODO
break;
case XML_SCHEMA_TYPE_ALL:
TODO
break;
case XML_SCHEMA_TYPE_SIMPLE_CONTENT:
TODO
break;
case XML_SCHEMA_TYPE_COMPLEX_CONTENT:
TODO
break;
case XML_SCHEMA_TYPE_UR:
TODO
break;
case XML_SCHEMA_TYPE_RESTRICTION:
/*xmlSchemaValidateRestrictionType(ctxt, node); */
TODO
break;
case XML_SCHEMA_TYPE_EXTENSION:
TODO
break;
case XML_SCHEMA_TYPE_ATTRIBUTE:
TODO
break;
case XML_SCHEMA_TYPE_GROUP:
TODO
break;
case XML_SCHEMA_TYPE_NOTATION:
TODO
break;
case XML_SCHEMA_TYPE_LIST:
TODO
break;
case XML_SCHEMA_TYPE_UNION:
TODO
break;
case XML_SCHEMA_FACET_MININCLUSIVE:
TODO
break;
case XML_SCHEMA_FACET_MINEXCLUSIVE:
TODO
break;
case XML_SCHEMA_FACET_MAXINCLUSIVE:
TODO
break;
case XML_SCHEMA_FACET_MAXEXCLUSIVE:
TODO
break;
case XML_SCHEMA_FACET_TOTALDIGITS:
TODO
break;
case XML_SCHEMA_FACET_FRACTIONDIGITS:
TODO
break;
case XML_SCHEMA_FACET_PATTERN:
TODO
break;
case XML_SCHEMA_FACET_ENUMERATION:
TODO
break;
case XML_SCHEMA_FACET_WHITESPACE:
TODO
break;
case XML_SCHEMA_FACET_LENGTH:
TODO
break;
case XML_SCHEMA_FACET_MAXLENGTH:
TODO
break;
case XML_SCHEMA_FACET_MINLENGTH:
TODO
break;
case XML_SCHEMA_TYPE_ATTRIBUTEGROUP:
TODO
break;
}
xmlSchemaValidateAttributes(ctxt, node, type->attributes);
if (ctxt->node == NULL)
return(ctxt->err);
ctxt->node = ctxt->node->next;
ctxt->type = type->next;
return(ctxt->err);
}
/**
* xmlSchemaValidateType:
* @ctxt: a schema validation context
* @elem: an element
* @type: the list of type declarations
*
* Validate the content of an element against the types.
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateType(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr elem,
xmlSchemaElementPtr elemDecl,
xmlSchemaTypePtr type) {
xmlChar *nil;
if ((elem == NULL) || (type == NULL) || (elemDecl == NULL))
return(0);
/*
* 3.3.4 : 2
*/
if (elemDecl->flags & XML_SCHEMAS_ELEM_ABSTRACT) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_ISABSTRACT;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s is abstract\n", elem->name);
return(ctxt->err);
}
/*
* 3.3.4: 3
*/
nil = xmlGetNsProp(elem, BAD_CAST "nil", xmlSchemaInstanceNs);
if (elemDecl->flags & XML_SCHEMAS_ELEM_NILLABLE) {
/* 3.3.4: 3.2 */
if (xmlStrEqual(nil, BAD_CAST "true")) {
if (elem->children != NULL) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_NOTEMPTY;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s is not empty\n",
elem->name);
return(ctxt->err);
}
if ((elemDecl->flags & XML_SCHEMAS_ELEM_FIXED) &&
(elemDecl->value != NULL)) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_HAVEDEFAULT;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Empty element %s cannot get a fixed value\n",
elem->name);
return(ctxt->err);
}
}
} else {
/* 3.3.4: 3.1 */
if (nil != NULL) {
ctxt->err = XML_SCHEMAS_ERR_NOTNILLABLE;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Element %s with xs:nil but not nillable\n",
elem->name);
xmlFree(nil);
return(ctxt->err);
}
}
/* TODO 3.3.4: 4 if the element carries xs:type*/
ctxt->type = elemDecl->subtypes;
ctxt->node = elem->children;
xmlSchemaValidateContent(ctxt, elem);
xmlSchemaValidateAttributes(ctxt, elem, elemDecl->attributes);
return(ctxt->err);
}
/**
* xmlSchemaValidateAttributes:
* @ctxt: a schema validation context
* @elem: an element
* @attributes: the list of attribute declarations
*
* Validate the attributes of an element.
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateAttributes(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr elem,
xmlSchemaAttributePtr attributes) {
int i, ret;
xmlAttrPtr attr;
xmlChar *value;
xmlSchemaAttributeGroupPtr group = NULL;
if (attributes == NULL)
return(0);
while (attributes != NULL) {
/*
* Handle attribute groups
*/
if (attributes->type == XML_SCHEMA_TYPE_ATTRIBUTEGROUP) {
group = (xmlSchemaAttributeGroupPtr) attributes;
xmlSchemaValidateAttributes(ctxt, elem, group->attributes);
attributes = group->next;
continue;
}
for (i = ctxt->attrBase;i < ctxt->attrNr;i++) {
attr = ctxt->attr[i].attr;
if (attr == NULL)
continue;
if (attributes->ref != NULL) {
if (!xmlStrEqual(attr->name, attributes->ref))
continue;
if (attr->ns != NULL) {
if ((attributes->refNs == NULL) ||
(!xmlStrEqual(attr->ns->href, attributes->refNs)))
continue;
} else if (attributes->refNs != NULL) {
continue;
}
} else {
if (!xmlStrEqual(attr->name, attributes->name))
continue;
/*
* TODO: handle the mess about namespaces here.
*/
if ((attr->ns != NULL) /* || (attributes->ns != NULL) */) {
TODO
}
}
ctxt->cur = (xmlNodePtr) attributes;
if (attributes->subtypes == NULL) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"Internal error: attribute %s type not resolved\n",
attr->name);
continue;
}
value = xmlNodeListGetString(elem->doc, attr->children, 1);
ret = xmlSchemaValidateSimpleValue(ctxt, attributes->subtypes,
value);
if (ret != 0) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_ATTRINVALID;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData,
"attribute %s on %s does not match type\n",
attr->name, elem->name);
} else {
ctxt->attr[i].state = XML_SCHEMAS_ATTR_CHECKED;
}
if (value != NULL) {
xmlFree(value);
}
}
attributes = attributes->next;
}
return(ctxt->err);
}
/**
* xmlSchemaValidateElement:
* @ctxt: a schema validation context
* @elem: an element
*
* Validate an element in a tree
*
* Returns 0 if the element is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateElement(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr elem) {
xmlSchemaElementPtr elemDecl;
int ret, attrBase;
if (elem->ns != NULL)
elemDecl = xmlHashLookup3(ctxt->schema->elemDecl,
elem->name, elem->ns->href, NULL);
else
elemDecl = xmlHashLookup3(ctxt->schema->elemDecl,
elem->name, NULL, NULL);
/*
* 3.3.4 : 1
*/
if (elemDecl == NULL) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_UNDECLAREDELEM;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s not declared\n",
elem->name);
return(ctxt->err);
}
if (elemDecl->subtypes == NULL) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_NOTYPE;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s has no type\n",
elem->name);
return(ctxt->err);
}
/*
* Verify the attributes
*/
attrBase = ctxt->attrBase;
ctxt->attrBase = ctxt->attrNr;
xmlSchemaRegisterAttributes(ctxt, elem->properties);
xmlSchemaValidateAttributes(ctxt, elem, elemDecl->attributes);
/*
* Verify the element content recursively
*/
if (elemDecl->contModel != NULL) {
ctxt->regexp = xmlRegNewExecCtxt(elemDecl->contModel,
(xmlRegExecCallbacks) xmlSchemaValidateCallback,
ctxt);
#ifdef DEBUG_AUTOMATA
xmlGenericError(xmlGenericErrorContext,
"====> %s\n", elem->name);
#endif
}
xmlSchemaValidateType(ctxt, elem, elemDecl, elemDecl->subtypes);
if (elemDecl->contModel != NULL) {
ret = xmlRegExecPushString(ctxt->regexp, NULL, NULL);
#ifdef DEBUG_AUTOMATA
xmlGenericError(xmlGenericErrorContext,
"====> %s : %d\n", elem->name, ret);
#endif
if (ret == 0) {
ctxt->err = XML_SCHEMAS_ERR_ELEMCONT;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s content check failed\n",
elem->name);
} else if (ret < 0) {
ctxt->err = XML_SCHEMAS_ERR_ELEMCONT;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s content check failed\n",
elem->name);
#ifdef DEBUG_CONTENT
} else {
xmlGenericError(xmlGenericErrorContext,
"Element %s content check succeeded\n", elem->name);
#endif
}
xmlRegFreeExecCtxt(ctxt->regexp);
}
/*
* Verify that all attributes were Schemas-validated
*/
xmlSchemaCheckAttributes(ctxt, elem);
ctxt->attrNr = ctxt->attrBase;
ctxt->attrBase = attrBase;
return(ctxt->err);
}
/**
* xmlSchemaValidateDocument:
* @ctxt: a schema validation context
* @doc: a parsed document tree
*
* Validate a document tree in memory.
*
* Returns 0 if the document is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
static int
xmlSchemaValidateDocument(xmlSchemaValidCtxtPtr ctxt, xmlDocPtr doc) {
xmlNodePtr root;
xmlSchemaElementPtr elemDecl;
root = xmlDocGetRootElement(doc);
if (root == NULL) {
ctxt->err = XML_SCHEMAS_ERR_NOROOT;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "document has no root\n");
return(ctxt->err);
}
if (root->ns != NULL)
elemDecl = xmlHashLookup3(ctxt->schema->elemDecl,
root->name, root->ns->href, NULL);
else
elemDecl = xmlHashLookup3(ctxt->schema->elemDecl,
root->name, NULL, NULL);
if (elemDecl == NULL) {
ctxt->err = XML_SCHEMAS_ERR_UNDECLAREDELEM;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Element %s not declared\n",
root->name);
} else if ((elemDecl->flags & XML_SCHEMAS_ELEM_TOPLEVEL) == 0) {
ctxt->err = XML_SCHEMAS_ERR_NOTTOPLEVEL;
ctxt->nberrors++;
if (ctxt->error != NULL)
ctxt->error(ctxt->userData, "Root element %s not toplevel\n",
root->name);
}
/*
* Okay, start the recursive validation
*/
xmlSchemaValidateElement(ctxt, root);
return(ctxt->err);
}
/************************************************************************
* *
* SAX Validation code *
* *
************************************************************************/
/************************************************************************
* *
* Validation interfaces *
* *
************************************************************************/
/**
* xmlSchemaNewValidCtxt:
* @schema: a precompiled XML Schemas
*
* Create an XML Schemas validation context based on the given schema
*
* Returns the validation context or NULL in case of error
*/
xmlSchemaValidCtxtPtr
xmlSchemaNewValidCtxt(xmlSchemaPtr schema) {
xmlSchemaValidCtxtPtr ret;
ret = (xmlSchemaValidCtxtPtr) xmlMalloc(sizeof(xmlSchemaValidCtxt));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext,
"Failed to allocate new schama validation context\n");
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaValidCtxt));
ret->schema = schema;
ret->attrNr = 0;
ret->attrMax = 10;
ret->attr = (xmlSchemaAttrStatePtr) xmlMalloc(ret->attrMax *
sizeof(xmlSchemaAttrState));
if (ret->attr == NULL) {
free(ret);
return(NULL);
}
memset(ret->attr, 0, ret->attrMax * sizeof(xmlSchemaAttrState));
return (ret);
}
/**
* xmlSchemaFreeValidCtxt:
* @ctxt: the schema validation context
*
* Free the resources associated to the schema validation context
*/
void
xmlSchemaFreeValidCtxt(xmlSchemaValidCtxtPtr ctxt) {
if (ctxt == NULL)
return;
if (ctxt->attr != NULL)
xmlFree(ctxt->attr);
if (ctxt->value != NULL)
xmlSchemaFreeValue(ctxt->value);
xmlFree(ctxt);
}
/**
* xmlSchemaSetValidErrors:
* @ctxt: a schema validation context
* @err: the error function
* @warn: the warning function
* @ctx: the functions context
*
* Set the error and warning callback informations
*/
void
xmlSchemaSetValidErrors(xmlSchemaValidCtxtPtr ctxt,
xmlSchemaValidityErrorFunc err,
xmlSchemaValidityWarningFunc warn, void *ctx) {
if (ctxt == NULL)
return;
ctxt->error = err;
ctxt->warning = warn;
ctxt->userData = ctx;
}
/**
* xmlSchemaValidateDoc:
* @ctxt: a schema validation context
* @doc: a parsed document tree
*
* Validate a document tree in memory.
*
* Returns 0 if the document is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
int
xmlSchemaValidateDoc(xmlSchemaValidCtxtPtr ctxt, xmlDocPtr doc) {
int ret;
if ((ctxt == NULL) || (doc == NULL))
return(-1);
ctxt->doc = doc;
ret = xmlSchemaValidateDocument(ctxt, doc);
return(ret);
}
/**
* xmlSchemaValidateStream:
* @ctxt: a schema validation context
* @input: the input to use for reading the data
* @enc: an optional encoding information
* @sax: a SAX handler for the resulting events
* @user_data: the context to provide to the SAX handler.
*
* Validate a document tree in memory.
*
* Returns 0 if the document is schemas valid, a positive error code
* number otherwise and -1 in case of internal or API error.
*/
int
xmlSchemaValidateStream(xmlSchemaValidCtxtPtr ctxt,
xmlParserInputBufferPtr input, xmlCharEncoding enc,
xmlSAXHandlerPtr sax, void *user_data) {
if ((ctxt == NULL) || (input == NULL))
return(-1);
ctxt->input = input;
ctxt->enc = enc;
ctxt->sax = sax;
ctxt->user_data = user_data;
TODO
return(0);
}
#endif /* LIBXML_SCHEMAS_ENABLED */