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libxml2/xmlschemas.c
Daniel Veillard dda22c15d5 applied patch from Steve Ball to avoid a double-free. Daniel 
* include/libxml/schemasInternals.h xmlschemas.c: applied patch from
  Steve Ball to avoid a double-free.
Daniel
2004-01-24 08:31:30 +00:00

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/*
* schemas.c : implementation of the XML Schema handling and
* schema validity checking
*
* See Copyright for the status of this software.
*
* Daniel Veillard <veillard@redhat.com>
*/
/*
* TODO:
* - when types are redefined in includes, check that all
* types in the redef list are equal
* -> need a type equality operation.
*/
#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>
#include <libxml/dict.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
#define SCHEMAS_PARSE_OPTIONS XML_PARSE_NOENT
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;
xmlStructuredErrorFunc serror;
xmlSchemaPtr topschema; /* The main schema */
xmlHashTablePtr namespaces; /* Hash table of namespaces to schemas */
xmlSchemaPtr schema; /* The schema in use */
const xmlChar *container; /* the current element, group, ... */
int counter;
const xmlChar *URL;
xmlDocPtr doc;
int preserve; /* Whether the doc should be freed */
const char *buffer;
int size;
/*
* Used to build complex element content models
*/
xmlAutomataPtr am;
xmlAutomataStatePtr start;
xmlAutomataStatePtr end;
xmlAutomataStatePtr state;
xmlDictPtr dict; /* dictionnary for interned string names */
int includes; /* the inclusion level, 0 for root or imports */
};
#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 */
xmlStructuredErrorFunc serror;
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;
};
/*
* These are the entries in the schemas importSchemas hash table
*/
typedef struct _xmlSchemaImport xmlSchemaImport;
typedef xmlSchemaImport *xmlSchemaImportPtr;
struct _xmlSchemaImport {
const xmlChar *schemaLocation;
xmlSchemaPtr schema;
};
/*
* These are the entries associated to includes in a schemas
*/
typedef struct _xmlSchemaInclude xmlSchemaInclude;
typedef xmlSchemaInclude *xmlSchemaIncludePtr;
struct _xmlSchemaInclude {
xmlSchemaIncludePtr next;
const xmlChar *schemaLocation;
xmlDocPtr doc;
};
/************************************************************************
* *
* Some predeclarations *
* *
************************************************************************/
static int xmlSchemaValidateSimpleValue(xmlSchemaValidCtxtPtr ctxt,
xmlSchemaTypePtr type,
const xmlChar * value);
static int xmlSchemaParseInclude(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema,
xmlNodePtr node);
/************************************************************************
* *
* Datatype error handlers *
* *
************************************************************************/
/**
* xmlSchemaPErrMemory:
* @node: a context node
* @extra: extra informations
*
* Handle an out of memory condition
*/
static void
xmlSchemaPErrMemory(xmlSchemaParserCtxtPtr ctxt,
const char *extra, xmlNodePtr node)
{
if (ctxt != NULL)
ctxt->nberrors++;
__xmlSimpleError(XML_FROM_SCHEMASP, XML_ERR_NO_MEMORY, node, NULL,
extra);
}
/**
* xmlSchemaPErr:
* @ctxt: the parsing context
* @node: the context node
* @error: the error code
* @msg: the error message
* @str1: extra data
* @str2: extra data
*
* Handle a parser error
*/
static void
xmlSchemaPErr(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node, int error,
const char *msg, const xmlChar * str1, const xmlChar * str2)
{
xmlGenericErrorFunc channel = NULL;
xmlStructuredErrorFunc schannel = NULL;
void *data = NULL;
if (ctxt != NULL) {
ctxt->nberrors++;
channel = ctxt->error;
data = ctxt->userData;
schannel = ctxt->serror;
}
__xmlRaiseError(schannel, channel, data, ctxt, node, XML_FROM_SCHEMASP,
error, XML_ERR_ERROR, NULL, 0,
(const char *) str1, (const char *) str2, NULL, 0, 0,
msg, str1, str2);
}
/**
* xmlSchemaPErr2:
* @ctxt: the parsing context
* @node: the context node
* @node: the current child
* @error: the error code
* @msg: the error message
* @str1: extra data
* @str2: extra data
*
* Handle a parser error
*/
static void
xmlSchemaPErr2(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node,
xmlNodePtr child, int error,
const char *msg, const xmlChar * str1, const xmlChar * str2)
{
if (child != NULL)
xmlSchemaPErr(ctxt, child, error, msg, str1, str2);
else
xmlSchemaPErr(ctxt, node, error, msg, str1, str2);
}
/**
* xmlSchemaVTypeErrMemory:
* @node: a context node
* @extra: extra informations
*
* Handle an out of memory condition
*/
static void
xmlSchemaVErrMemory(xmlSchemaValidCtxtPtr ctxt,
const char *extra, xmlNodePtr node)
{
if (ctxt != NULL) {
ctxt->nberrors++;
ctxt->err = XML_SCHEMAS_ERR_INTERNAL;
}
__xmlSimpleError(XML_FROM_SCHEMASV, XML_ERR_NO_MEMORY, node, NULL,
extra);
}
/**
* xmlSchemaVErr3:
* @ctxt: the validation context
* @node: the context node
* @error: the error code
* @msg: the error message
* @str1: extra data
* @str2: extra data
* @str3: extra data
*
* Handle a validation error
*/
static void
xmlSchemaVErr3(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr node, int error,
const char *msg, const xmlChar *str1, const xmlChar *str2,
const xmlChar *str3)
{
xmlStructuredErrorFunc schannel = NULL;
xmlGenericErrorFunc channel = NULL;
void *data = NULL;
if (ctxt != NULL) {
ctxt->nberrors++;
ctxt->err = error;
channel = ctxt->error;
schannel = ctxt->serror;
data = ctxt->userData;
}
/* reajust to global error numbers */
error += XML_SCHEMAV_NOROOT - XML_SCHEMAS_ERR_NOROOT;
__xmlRaiseError(schannel, channel, data, ctxt, node, XML_FROM_SCHEMASV,
error, XML_ERR_ERROR, NULL, 0,
(const char *) str1, (const char *) str2,
(const char *) str3, 0, 0,
msg, str1, str2, str3);
}
/**
* xmlSchemaVErr:
* @ctxt: the validation context
* @node: the context node
* @error: the error code
* @msg: the error message
* @str1: extra data
* @str2: extra data
*
* Handle a validation error
*/
static void
xmlSchemaVErr(xmlSchemaValidCtxtPtr ctxt, xmlNodePtr node, int error,
const char *msg, const xmlChar * str1, const xmlChar * str2)
{
xmlStructuredErrorFunc schannel = NULL;
xmlGenericErrorFunc channel = NULL;
void *data = NULL;
if (ctxt != NULL) {
ctxt->nberrors++;
ctxt->err = error;
channel = ctxt->error;
data = ctxt->userData;
schannel = ctxt->serror;
}
/* reajust to global error numbers */
error += XML_SCHEMAV_NOROOT - XML_SCHEMAS_ERR_NOROOT;
__xmlRaiseError(schannel, channel, data, ctxt, node, XML_FROM_SCHEMASV,
error, XML_ERR_ERROR, NULL, 0,
(const char *) str1, (const char *) str2, NULL, 0, 0,
msg, str1, str2);
}
/************************************************************************
* *
* Allocation functions *
* *
************************************************************************/
/**
* xmlSchemaNewSchema:
* @ctxt: a schema validation context
*
* 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) {
xmlSchemaPErrMemory(ctxt, "allocating schema", NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchema));
xmlDictReference(ctxt->dict);
ret->dict = ctxt->dict;
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
* @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) {
xmlSchemaPErrMemory(ctxt, "allocating annotation", node);
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);
}
/**
* xmlSchemaFreeImport:
* @import: a schema import structure
*
* Deallocate an import structure
*/
static void
xmlSchemaFreeImport(xmlSchemaImportPtr import)
{
if (import == NULL)
return;
xmlSchemaFree(import->schema);
xmlFree(import);
}
/**
* xmlSchemaFreeInclude:
* @include: a schema include structure
*
* Deallocate an include structure
*/
static void
xmlSchemaFreeInclude(xmlSchemaIncludePtr include)
{
if (include == NULL)
return;
xmlFreeDoc(include->doc);
xmlFree(include);
}
/**
* xmlSchemaFreeIncludeList:
* @includes: a schema include list
*
* Deallocate an include structure
*/
static void
xmlSchemaFreeIncludeList(xmlSchemaIncludePtr includes)
{
xmlSchemaIncludePtr next;
while (includes != NULL) {
next = includes->next;
xmlSchemaFreeInclude(includes);
includes = next;
}
}
/**
* xmlSchemaFreeNotation:
* @schema: a schema notation structure
*
* Deallocate a Schema Notation structure.
*/
static void
xmlSchemaFreeNotation(xmlSchemaNotationPtr nota)
{
if (nota == NULL)
return;
xmlFree(nota);
}
/**
* xmlSchemaFreeAttribute:
* @schema: a schema attribute structure
*
* Deallocate a Schema Attribute structure.
*/
static void
xmlSchemaFreeAttribute(xmlSchemaAttributePtr attr)
{
if (attr == NULL)
return;
xmlFree(attr);
}
/**
* xmlSchemaFreeAttributeGroup:
* @schema: a schema attribute group structure
*
* Deallocate a Schema Attribute Group structure.
*/
static void
xmlSchemaFreeAttributeGroup(xmlSchemaAttributeGroupPtr attr)
{
if (attr == NULL)
return;
xmlFree(attr);
}
/**
* xmlSchemaFreeElement:
* @schema: a schema element structure
*
* Deallocate a Schema Element structure.
*/
static void
xmlSchemaFreeElement(xmlSchemaElementPtr elem)
{
if (elem == NULL)
return;
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->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->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);
}
/**
* xmlSchemaFreeTypeList:
* @type: a schema type structure
*
* Deallocate a Schema Type structure.
*/
static void
xmlSchemaFreeTypeList(xmlSchemaTypePtr type)
{
xmlSchemaTypePtr next;
while (type != NULL) {
next = type->redef;
xmlSchemaFreeType(type);
type = next;
}
}
/**
* xmlSchemaFree:
* @schema: a schema structure
*
* Deallocate a Schema structure.
*/
void
xmlSchemaFree(xmlSchemaPtr schema)
{
if (schema == NULL)
return;
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) xmlSchemaFreeTypeList);
if (schema->groupDecl != NULL)
xmlHashFree(schema->groupDecl,
(xmlHashDeallocator) xmlSchemaFreeType);
if (schema->schemasImports != NULL)
xmlHashFree(schema->schemasImports,
(xmlHashDeallocator) xmlSchemaFreeImport);
if (schema->includes != NULL) {
xmlSchemaFreeIncludeList((xmlSchemaIncludePtr) schema->includes);
}
if (schema->annot != NULL)
xmlSchemaFreeAnnot(schema->annot);
if (schema->doc != NULL && !schema->preserve)
xmlFreeDoc(schema->doc);
xmlDictFree(schema->dict);
xmlFree(schema);
}
/************************************************************************
* *
* Debug functions *
* *
************************************************************************/
#ifdef LIBXML_OUTPUT_ENABLED
/**
* 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);
}
#endif /* LIBXML_OUTPUT_ENABLED */
/************************************************************************
* *
* Utilities *
* *
************************************************************************/
/**
* xmlSchemaGetProp:
* @ctxt: the parser context
* @node: the node
* @name: the property name
*
* Read a attribute value and internalize the string
*
* Returns the string or NULL if not present.
*/
static const xmlChar *
xmlSchemaGetProp(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node,
const char *name)
{
xmlChar *val;
const xmlChar *ret;
val = xmlGetProp(node, BAD_CAST name);
if (val == NULL)
return(NULL);
ret = xmlDictLookup(ctxt->dict, val, -1);
xmlFree(val);
return(ret);
}
/**
* xmlSchemaGetNamespace:
* @ctxt: the parser context
* @schema: the schemas containing the declaration
* @node: the node
* @qname: the QName to analyze
*
* Find the namespace name for the given declaration.
*
* Returns the local name for that declaration, as well as the namespace name
*/
static const xmlChar *
xmlSchemaGetNamespace(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node, const xmlChar *qname,
const xmlChar **namespace) {
int len;
const xmlChar *name, *prefix, *def = NULL;
xmlNsPtr ns;
*namespace = NULL;
if (xmlStrEqual(node->name, BAD_CAST "element") ||
xmlStrEqual(node->name, BAD_CAST "attribute") ||
xmlStrEqual(node->name, BAD_CAST "simpleType") ||
xmlStrEqual(node->name, BAD_CAST "complexType")) {
def = xmlSchemaGetProp(ctxt, node, "targetNamespace");
}
qname = xmlDictLookup(ctxt->dict, qname, -1); /* intern the string */
name = xmlSplitQName3(qname, &len);
if (name == NULL) {
if (def == NULL) {
if (xmlStrEqual(node->name, BAD_CAST "element")) {
if (schema->flags & XML_SCHEMAS_QUALIF_ELEM)
*namespace = schema->targetNamespace;
} else if (xmlStrEqual(node->name, BAD_CAST "attribute")) {
if (schema->flags & XML_SCHEMAS_QUALIF_ATTR)
*namespace = schema->targetNamespace;
} else if ((xmlStrEqual(node->name, BAD_CAST "simpleType")) ||
(xmlStrEqual(node->name, BAD_CAST "complexType"))) {
*namespace = schema->targetNamespace;
}
} else {
*namespace = def;
}
return(qname);
}
name = xmlDictLookup(ctxt->dict, name, -1);
prefix = xmlDictLookup(ctxt->dict, qname, len);
if (def != NULL) {
xmlSchemaPErr(ctxt, node, XML_SCHEMAP_DEF_AND_PREFIX,
"%s: presence of both prefix %s and targetNamespace\n",
node->name, prefix);
}
ns = xmlSearchNs(node->doc, node, prefix);
if (ns == NULL) {
xmlSchemaPErr(ctxt, node, XML_SCHEMAP_PREFIX_UNDEFINED,
"%s: the QName prefix %s is undefined\n",
node->name, prefix);
return(name);
}
*namespace = xmlDictLookup(ctxt->dict, ns->href, -1);
return(name);
}
/************************************************************************
* *
* Parsing functions *
* *
************************************************************************/
/**
* xmlSchemaGetElem:
* @schema: the schemas context
* @name: the element name
* @ns: the element namespace
* @level: how deep is the request
*
* Lookup a an element in the schemas or the accessible schemas
*
* Returns the element definition or NULL if not found.
*/
static xmlSchemaElementPtr
xmlSchemaGetElem(xmlSchemaPtr schema, const xmlChar * name,
const xmlChar * namespace, int level)
{
xmlSchemaElementPtr ret;
xmlSchemaImportPtr import = NULL;
if ((name == NULL) || (schema == NULL))
return (NULL);
if (namespace == NULL) {
ret = xmlHashLookup2(schema->elemDecl, name, namespace);
if ((ret != NULL) &&
((level == 0) || (ret->flags & XML_SCHEMAS_ELEM_TOPLEVEL))) {
return (ret);
}
} else if ((schema->flags & XML_SCHEMAS_QUALIF_ELEM) == 0) {
if (xmlStrEqual(namespace, schema->targetNamespace))
ret = xmlHashLookup2(schema->elemDecl, name, NULL);
else
ret = xmlHashLookup2(schema->elemDecl, name, namespace);
if ((ret != NULL) &&
((level == 0) || (ret->flags & XML_SCHEMAS_ELEM_TOPLEVEL))) {
return (ret);
}
} else {
ret = xmlHashLookup2(schema->elemDecl, name, namespace);
if ((ret != NULL) &&
((level == 0) || (ret->flags & XML_SCHEMAS_ELEM_TOPLEVEL))) {
return (ret);
}
}
if (level > 0)
import = xmlHashLookup(schema->schemasImports, namespace);
if (import != NULL)
ret = xmlSchemaGetElem(import->schema, name, namespace, level + 1);
#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);
}
/**
* 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;
xmlSchemaImportPtr import;
if (name == NULL)
return (NULL);
if (schema != NULL) {
ret = xmlHashLookup2(schema->typeDecl, name, namespace);
if (ret != NULL)
return (ret);
}
ret = xmlSchemaGetPredefinedType(name, namespace);
if (ret != NULL)
return (ret);
import = xmlHashLookup(schema->schemasImports, namespace);
if (import != NULL)
ret = xmlSchemaGetType(import->schema, 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_CH(*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) {
xmlSchemaPErrMemory(ctxt, "add annotation", NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaNotation));
ret->name = xmlDictLookup(ctxt->dict, name, -1);
val = xmlHashAddEntry2(schema->notaDecl, name, schema->targetNamespace,
ret);
if (val != 0) {
xmlSchemaPErr(ctxt, (xmlNodePtr) ctxt->doc,
XML_SCHEMAP_REDEFINED_NOTATION,
"Notation %s already defined\n",
name, NULL);
xmlFree(ret);
return (NULL);
}
return (ret);
}
/**
* xmlSchemaAddAttribute:
* @ctxt: a schema validation context
* @schema: the schema being built
* @name: the item name
* @namespace: the namespace
*
* 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, const xmlChar * namespace)
{
xmlSchemaAttributePtr ret = NULL;
int val;
if ((ctxt == NULL) || (schema == NULL) || (name == NULL))
return (NULL);
#ifdef DEBUG
fprintf(stderr, "Adding attribute %s\n", name);
if (namespace != NULL)
fprintf(stderr, " target namespace %s\n", namespace);
#endif
if (schema->attrDecl == NULL)
schema->attrDecl = xmlHashCreate(10);
if (schema->attrDecl == NULL)
return (NULL);
ret = (xmlSchemaAttributePtr) xmlMalloc(sizeof(xmlSchemaAttribute));
if (ret == NULL) {
xmlSchemaPErrMemory(ctxt, "allocating attribute", NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaAttribute));
ret->name = xmlDictLookup(ctxt->dict, name, -1);
ret->targetNamespace = xmlDictLookup(ctxt->dict, namespace, -1);
val = xmlHashAddEntry3(schema->attrDecl, name,
schema->targetNamespace, ctxt->container, ret);
if (val != 0) {
xmlSchemaPErr(ctxt, (xmlNodePtr) ctxt->doc,
XML_SCHEMAP_REDEFINED_ATTR,
"Attribute %s already defined\n",
name, NULL);
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) {
xmlSchemaPErrMemory(ctxt, "allocating attribute group", NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaAttributeGroup));
ret->name = xmlDictLookup(ctxt->dict, name, -1);
val = xmlHashAddEntry3(schema->attrgrpDecl, name,
schema->targetNamespace, ctxt->container, ret);
if (val != 0) {
xmlSchemaPErr(ctxt, (xmlNodePtr) ctxt->doc,
XML_SCHEMAP_REDEFINED_ATTRGROUP,
"Attribute group %s already defined\n",
name, NULL);
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);
#ifdef DEBUG
fprintf(stderr, "Adding element %s\n", name);
if (namespace != NULL)
fprintf(stderr, " target namespace %s\n", namespace);
#endif
if (schema->elemDecl == NULL)
schema->elemDecl = xmlHashCreate(10);
if (schema->elemDecl == NULL)
return (NULL);
ret = (xmlSchemaElementPtr) xmlMalloc(sizeof(xmlSchemaElement));
if (ret == NULL) {
xmlSchemaPErrMemory(ctxt, "allocating element", NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaElement));
ret->name = xmlDictLookup(ctxt->dict, name, -1);
ret->targetNamespace = xmlDictLookup(ctxt->dict, namespace, -1);
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) {
xmlSchemaPErr(ctxt, (xmlNodePtr) ctxt->doc,
XML_SCHEMAP_REDEFINED_ELEMENT,
"Element %s already defined\n",
name, NULL);
xmlFree(ret);
return (NULL);
}
}
return (ret);
}
/**
* xmlSchemaAddType:
* @ctxt: a schema validation context
* @schema: the schema being built
* @name: the item name
* @namespace: the namespace
*
* 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, const xmlChar * namespace)
{
xmlSchemaTypePtr ret = NULL;
int val;
if ((ctxt == NULL) || (schema == NULL) || (name == NULL))
return (NULL);
#ifdef DEBUG
fprintf(stderr, "Adding type %s\n", name);
if (namespace != NULL)
fprintf(stderr, " target namespace %s\n", namespace);
#endif
if (schema->typeDecl == NULL)
schema->typeDecl = xmlHashCreate(10);
if (schema->typeDecl == NULL)
return (NULL);
ret = (xmlSchemaTypePtr) xmlMalloc(sizeof(xmlSchemaType));
if (ret == NULL) {
xmlSchemaPErrMemory(ctxt, "allocating type", NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaType));
ret->name = xmlDictLookup(ctxt->dict, name, -1);
ret->redef = NULL;
val = xmlHashAddEntry2(schema->typeDecl, name, namespace, ret);
if (val != 0) {
if (ctxt->includes == 0) {
xmlSchemaPErr(ctxt, (xmlNodePtr) ctxt->doc,
XML_SCHEMAP_REDEFINED_TYPE,
"Type %s already defined\n",
name, NULL);
xmlFree(ret);
return (NULL);
} else {
xmlSchemaTypePtr prev;
prev = xmlHashLookup2(schema->typeDecl, name, namespace);
if (prev == NULL) {
xmlSchemaPErr(ctxt, (xmlNodePtr) ctxt->doc,
XML_ERR_INTERNAL_ERROR,
"Internal error on type %s definition\n",
name, NULL);
xmlFree(ret);
return (NULL);
}
ret->redef = prev->redef;
prev->redef = ret;
}
}
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) {
xmlSchemaPErrMemory(ctxt, "adding group", NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaType));
ret->name = xmlDictLookup(ctxt->dict, name, -1);
val =
xmlHashAddEntry2(schema->groupDecl, name, schema->targetNamespace,
ret);
if (val != 0) {
xmlSchemaPErr(ctxt, (xmlNodePtr) ctxt->doc,
XML_SCHEMAP_REDEFINED_GROUP,
"Group %s already defined\n",
name, NULL);
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 const xmlChar *
xmlGetQNameProp(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr node,
const char *name, const xmlChar ** namespace)
{
const xmlChar *val;
xmlNsPtr ns;
const xmlChar *ret, *prefix;
int len;
*namespace = NULL;
val = xmlSchemaGetProp(ctxt, node, name);
if (val == NULL)
return (NULL);
ret = xmlSplitQName3(val, &len);
if (ret == NULL) {
return (val);
}
ret = xmlDictLookup(ctxt->dict, ret, -1);
prefix = xmlDictLookup(ctxt->dict, val, len);
ns = xmlSearchNs(node->doc, node, prefix);
if (ns == NULL) {
xmlSchemaPErr(ctxt, node, XML_SCHEMAP_PREFIX_UNDEFINED,
"Attribute %s: the QName prefix %s is undefined\n",
(const xmlChar *) name, prefix);
} else {
*namespace = xmlDictLookup(ctxt->dict, ns->href, -1);
}
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)
{
const xmlChar *val, *cur;
int ret = 0;
val = xmlSchemaGetProp(ctxt, node, "maxOccurs");
if (val == NULL)
return (1);
if (xmlStrEqual(val, (const xmlChar *) "unbounded")) {
return (UNBOUNDED); /* encoding it with -1 might be another option */
}
cur = val;
while (IS_BLANK_CH(*cur))
cur++;
while ((*cur >= '0') && (*cur <= '9')) {
ret = ret * 10 + (*cur - '0');
cur++;
}
while (IS_BLANK_CH(*cur))
cur++;
if (*cur != 0) {
xmlSchemaPErr(ctxt, node, XML_SCHEMAP_INVALID_MAXOCCURS,
"invalid value for maxOccurs: %s\n", val, NULL);
return (1);
}
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)
{
const xmlChar *val, *cur;
int ret = 0;
val = xmlSchemaGetProp(ctxt, node, "minOccurs");
if (val == NULL)
return (1);
cur = val;
while (IS_BLANK_CH(*cur))
cur++;
while ((*cur >= '0') && (*cur <= '9')) {
ret = ret * 10 + (*cur - '0');
cur++;
}
while (IS_BLANK_CH(*cur))
cur++;
if (*cur != 0) {
xmlSchemaPErr(ctxt, node, XML_SCHEMAP_INVALID_MINOCCURS,
"invalid value for minOccurs: %s\n", val, NULL);
return (1);
}
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)
{
const xmlChar *val;
val = xmlSchemaGetProp(ctxt, node, name);
if (val == NULL)
return (def);
if (xmlStrEqual(val, BAD_CAST "true"))
def = 1;
else if (xmlStrEqual(val, BAD_CAST "false"))
def = 0;
else {
xmlSchemaPErr(ctxt, node, XML_SCHEMAP_INVALID_BOOLEAN,
"Attribute %s: the value %s is not boolean\n",
(const xmlChar *) name, 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;
const xmlChar *value;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
facet = xmlSchemaNewFacet();
if (facet == NULL) {
xmlSchemaPErrMemory(ctxt, "allocating facet", node);
return (NULL);
}
facet->node = node;
value = xmlSchemaGetProp(ctxt, node, "value");
if (value == NULL) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_FACET_NO_VALUE,
"Facet %s has no value\n", node->name, NULL);
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 {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_FACET_TYPE,
"Unknown facet type %s\n", node->name, NULL);
xmlSchemaFreeFacet(facet);
return (NULL);
}
facet->id = xmlSchemaGetProp(ctxt, node, "id");
facet->value = value;
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
facet->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (child != NULL) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_FACET_CHILD,
"Facet %s has unexpected child content\n",
node->name, NULL);
}
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, NULL);
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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_SEQUENCE_CHILD,
"Sequence %s has unexpected content\n", type->name,
NULL);
}
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)
{
const xmlChar *name;
xmlSchemaNotationPtr ret;
xmlNodePtr child = NULL;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
name = xmlSchemaGetProp(ctxt, node, "name");
if (name == NULL) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_NOTATION_NO_NAME,
"Notation has no name\n", NULL, NULL);
return (NULL);
}
ret = xmlSchemaAddNotation(ctxt, schema, name);
if (ret == NULL) {
return (NULL);
}
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
ret->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (child != NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_NOTATION_CHILD,
"notation %s has unexpected content\n", name, NULL);
}
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)
{
const xmlChar *processContents;
xmlSchemaAttributePtr ret;
xmlNodePtr child = NULL;
char name[100];
const xmlChar *local, *ns;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
snprintf(name, 99, "anyattr %d", ctxt->counter++ + 1);
local = xmlSchemaGetNamespace(ctxt, schema, node, BAD_CAST "anyattr", &ns);
ret = xmlSchemaAddAttribute(ctxt, schema, BAD_CAST name, ns);
if (ret == NULL) {
return (NULL);
}
ret->id = xmlSchemaGetProp(ctxt, node, "id");
processContents = xmlSchemaGetProp(ctxt, node, "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 {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_PROCESSCONTENT_CHILD,
"anyAttribute has unexpected content for processContents: %s\n",
processContents, NULL);
ret->occurs = XML_SCHEMAS_ANYATTR_STRICT;
}
child = node->children;
if (IS_SCHEMA(child, "annotation")) {
ret->annot = xmlSchemaParseAnnotation(ctxt, schema, child);
child = child->next;
}
if (child != NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_ANYATTRIBUTE_CHILD,
"anyAttribute %s has unexpected content\n",
(const xmlChar *) name, NULL);
}
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)
{
const xmlChar *name, *refNs = NULL, *ref = NULL;
xmlSchemaAttributePtr ret;
xmlNodePtr child = NULL;
char buf[100];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
name = xmlSchemaGetProp(ctxt, node, "name");
if (name == NULL) {
ref = xmlGetQNameProp(ctxt, node, "ref", &refNs);
if (ref == NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_ATTR_NONAME_NOREF,
"Attribute has no name nor ref\n", NULL, NULL);
return (NULL);
}
if (refNs == NULL)
refNs = schema->targetNamespace;
snprintf(buf, 99, "anonattr %d", ctxt->counter++ + 1);
name = (const xmlChar *) buf;
ret = xmlSchemaAddAttribute(ctxt, schema, name, NULL);
} else {
const xmlChar *local, *ns;
local = xmlSchemaGetNamespace(ctxt, schema, node, name, &ns);
ret = xmlSchemaAddAttribute(ctxt, schema, local, ns);
}
if (ret == NULL) {
return (NULL);
}
ret->ref = ref;
ret->refNs = refNs;
if ((ret->targetNamespace != NULL) &&
((schema->flags & XML_SCHEMAS_QUALIF_ATTR) == 0) &&
(xmlStrEqual(ret->targetNamespace, schema->targetNamespace)))
ret->flags |= XML_SCHEMAS_ATTR_NSDEFAULT;
ret->typeName = xmlGetQNameProp(ctxt, node, "type", &(ret->typeNs));
if ((ret->typeName != NULL) && (ret->typeNs == NULL))
ret->typeNs = schema->targetNamespace;
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) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_ATTR_CHILD,
"attribute %s has unexpected content\n", name,
NULL);
}
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)
{
const xmlChar *name, *refNs = NULL, *ref = NULL;
xmlSchemaAttributeGroupPtr ret;
xmlSchemaAttributePtr last = NULL, attr;
xmlNodePtr child = NULL;
const xmlChar *oldcontainer;
char buf[100];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
oldcontainer = ctxt->container;
name = xmlSchemaGetProp(ctxt, node, "name");
if (name == NULL) {
ref = xmlGetQNameProp(ctxt, node, "ref", &refNs);
if (ref == NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_ATTRGRP_NONAME_NOREF,
"AttributeGroup has no name nor ref\n", NULL,
NULL);
return (NULL);
}
if (refNs == NULL)
refNs = schema->targetNamespace;
snprintf(buf, 99, "anonattrgroup %d", ctxt->counter++ + 1);
name = (const xmlChar *) buf;
if (name == NULL) {
xmlSchemaPErrMemory(ctxt, "creating attribute group", node);
return (NULL);
}
}
ret = xmlSchemaAddAttributeGroup(ctxt, schema, name);
if (ret == NULL) {
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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_ATTRGRP_CHILD,
"attribute group %s has unexpected content\n", name,
NULL);
}
ctxt->container = oldcontainer;
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)
{
const xmlChar *name, *fixed;
const xmlChar *refNs = NULL, *ref = NULL;
xmlSchemaElementPtr ret;
xmlNodePtr child = NULL;
const xmlChar *oldcontainer;
char buf[100];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
oldcontainer = ctxt->container;
name = xmlSchemaGetProp(ctxt, node, "name");
if (name == NULL) {
ref = xmlGetQNameProp(ctxt, node, "ref", &refNs);
if (ref == NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_ELEM_NONAME_NOREF,
"Element has no name nor ref\n", NULL, NULL);
return (NULL);
}
if (refNs == NULL)
refNs = schema->targetNamespace;
snprintf(buf, 99, "anonelem %d", ctxt->counter++ + 1);
name = (const xmlChar *) buf;
ret = xmlSchemaAddElement(ctxt, schema, name, NULL);
} else {
const xmlChar *local, *ns;
local = xmlSchemaGetNamespace(ctxt, schema, node, name, &ns);
ret = xmlSchemaAddElement(ctxt, schema, local, ns);
}
if (ret != NULL)
ret->node = node;
if (ret == NULL) {
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 = xmlSchemaGetProp(ctxt, node, "id");
ret->namedType =
xmlGetQNameProp(ctxt, node, "type", &(ret->namedTypeNs));
if ((ret->namedType != NULL) && (ret->namedTypeNs == NULL))
ret->namedTypeNs = schema->targetNamespace;
ret->substGroup =
xmlGetQNameProp(ctxt, node, "substitutionGroup",
&(ret->substGroupNs));
fixed = xmlSchemaGetProp(ctxt, node, "fixed");
ret->minOccurs = xmlGetMinOccurs(ctxt, node);
ret->maxOccurs = xmlGetMaxOccurs(ctxt, node);
ret->value = xmlSchemaGetProp(ctxt, node, "default");
if ((ret->value != NULL) && (fixed != NULL)) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_ELEM_DEFAULT_FIXED,
"Element %s has both default and fixed\n",
ret->name, NULL);
} 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) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_ELEM_CHILD,
"element %s has unexpected content\n", name, NULL);
}
ctxt->container = oldcontainer;
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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_LIST;
type->id = xmlSchemaGetProp(ctxt, node, "id");
type->ref = xmlSchemaGetProp(ctxt, node, "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) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_UNION_CHILD,
"Union %s has unexpected content\n", type->name,
NULL);
}
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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_LIST;
type->id = xmlSchemaGetProp(ctxt, node, "id");
type->ref = xmlGetQNameProp(ctxt, node, "ref", &(type->refNs));
if ((type->ref != NULL) && (type->refNs == NULL))
type->refNs = schema->targetNamespace;
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) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_LIST_CHILD,
"List %s has unexpected content\n", type->name,
NULL);
}
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;
const xmlChar *name;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
name = xmlSchemaGetProp(ctxt, node, "name");
if (name == NULL) {
char buf[100];
snprintf(buf, 99, "simpletype %d", ctxt->counter++ + 1);
type = xmlSchemaAddType(ctxt, schema, (const xmlChar *)buf, NULL);
} else {
const xmlChar *local, *ns;
local = xmlSchemaGetNamespace(ctxt, schema, node, name, &ns);
type = xmlSchemaAddType(ctxt, schema, local, ns);
}
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_SIMPLE;
type->id = xmlSchemaGetProp(ctxt, node, "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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_SIMPLETYPE_CHILD,
"SimpleType %s has unexpected content\n",
type->name, NULL);
}
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;
const xmlChar *name;
const xmlChar *ref = NULL, *refNs = NULL;
char buf[100];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
name = xmlSchemaGetProp(ctxt, node, "name");
if (name == NULL) {
ref = xmlGetQNameProp(ctxt, node, "ref", &refNs);
if (ref == NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_GROUP_NONAME_NOREF,
"Group has no name nor ref\n", NULL, NULL);
return (NULL);
}
if (refNs == NULL)
refNs = schema->targetNamespace;
snprintf(buf, 99, "anongroup %d", ctxt->counter++ + 1);
name = (const xmlChar *) buf;
}
type = xmlSchemaAddGroup(ctxt, schema, name);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_GROUP;
type->id = xmlSchemaGetProp(ctxt, node, "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) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_GROUP_CHILD,
"Group %s has unexpected content\n", type->name,
NULL);
}
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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_ALL;
type->id = xmlSchemaGetProp(ctxt, node, "id");
type->minOccurs = xmlGetMinOccurs(ctxt, node);
if (type->minOccurs > 1)
xmlSchemaPErr(ctxt, node, XML_SCHEMAP_INVALID_MINOCCURS,
"invalid value for minOccurs (must be 0 or 1)\n", NULL, NULL);
type->maxOccurs = xmlGetMaxOccurs(ctxt, node);
if (type->maxOccurs > 1)
xmlSchemaPErr(ctxt, node, XML_SCHEMAP_INVALID_MAXOCCURS,
"invalid value for maxOccurs (must be 0 or 1)\n", NULL, NULL);
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 (subtype->minOccurs > 1)
xmlSchemaPErr(ctxt, child, XML_SCHEMAP_INVALID_MINOCCURS,
"invalid value for minOccurs (must be 0 or 1)\n",
NULL, NULL);
if (subtype->maxOccurs > 1)
xmlSchemaPErr(ctxt, child, XML_SCHEMAP_INVALID_MAXOCCURS,
"invalid value for maxOccurs (must be 0 or 1)\n",
NULL, NULL);
if (last == NULL) {
type->subtypes = subtype;
last = subtype;
} else {
last->next = subtype;
last = subtype;
}
last->next = NULL;
}
child = child->next;
}
if (child != NULL) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_ALL_CHILD,
"All %s has unexpected content\n", type->name,
NULL);
}
return (type);
}
/**
* xmlSchemaImportSchema
*
* @ctxt: a schema validation context
* @schemaLocation: an URI defining where to find the imported schema
*
* import a XML schema
* *WARNING* this interface is highly subject to change
*
* Returns -1 in case of error and 1 in case of success.
*/
static xmlSchemaImportPtr
xmlSchemaImportSchema(xmlSchemaParserCtxtPtr ctxt,
const xmlChar *schemaLocation)
{
xmlSchemaImportPtr import;
xmlSchemaParserCtxtPtr newctxt;
newctxt = (xmlSchemaParserCtxtPtr) xmlMalloc(sizeof(xmlSchemaParserCtxt));
if (newctxt == NULL) {
xmlSchemaPErrMemory(ctxt, "allocating schama parser context",
NULL);
return (NULL);
}
memset(newctxt, 0, sizeof(xmlSchemaParserCtxt));
/* Keep the same dictionnary for parsing, really */
xmlDictReference(ctxt->dict);
newctxt->dict = ctxt->dict;
newctxt->includes = 0;
newctxt->URL = xmlDictLookup(newctxt->dict, schemaLocation, -1);
xmlSchemaSetParserErrors(newctxt, ctxt->error, ctxt->warning,
ctxt->userData);
import = (xmlSchemaImport*) xmlMalloc(sizeof(xmlSchemaImport));
if (import == NULL) {
xmlSchemaPErrMemory(NULL, "allocating imported schema",
NULL);
xmlSchemaFreeParserCtxt(newctxt);
return (NULL);
}
memset(import, 0, sizeof(xmlSchemaImport));
import->schemaLocation = xmlDictLookup(ctxt->dict, schemaLocation, -1);
import->schema = xmlSchemaParse(newctxt);
if (import->schema == NULL) {
/* FIXME use another error enum here ? */
xmlSchemaPErr(ctxt, NULL, XML_SCHEMAS_ERR_INTERNAL,
"failed to import schema at location %s\n",
schemaLocation, NULL);
xmlSchemaFreeParserCtxt(newctxt);
if (import->schemaLocation != NULL)
xmlFree((xmlChar *)import->schemaLocation);
xmlFree(import);
return NULL;
}
xmlSchemaFreeParserCtxt(newctxt);
return import;
}
/**
* 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;
xmlSchemaImportPtr import = NULL;
const xmlChar *namespace;
const xmlChar *schemaLocation;
const xmlChar *previous;
xmlURIPtr check;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (-1);
namespace = xmlSchemaGetProp(ctxt, node, "namespace");
if (namespace != NULL) {
check = xmlParseURI((const char *) namespace);
if (check == NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_IMPORT_NAMESPACE_NOT_URI,
"Import namespace attribute is not an URI: %s\n",
namespace, NULL);
return (-1);
} else {
xmlFreeURI(check);
}
}
schemaLocation = xmlSchemaGetProp(ctxt, node, "schemaLocation");
if (schemaLocation != NULL) {
xmlChar *base = NULL;
xmlChar *URI = NULL;
check = xmlParseURI((const char *) schemaLocation);
if (check == NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_IMPORT_SCHEMA_NOT_URI,
"Import schemaLocation attribute is not an URI: %s\n",
schemaLocation, NULL);
return (-1);
} else {
xmlFreeURI(check);
}
base = xmlNodeGetBase(node->doc, node);
if (base == NULL) {
URI = xmlBuildURI(schemaLocation, node->doc->URL);
} else {
URI = xmlBuildURI(schemaLocation, base);
xmlFree(base);
}
if (URI != NULL) {
schemaLocation = xmlDictLookup(ctxt->dict, URI, -1);
xmlFree(URI);
}
}
if (schema->schemasImports == NULL) {
schema->schemasImports = xmlHashCreate(10);
if (schema->schemasImports == NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_FAILED_BUILD_IMPORT,
"Internal: failed to build import table\n",
NULL, NULL);
return (-1);
}
}
if (namespace == NULL) {
import = xmlHashLookup(schema->schemasImports,
XML_SCHEMAS_DEFAULT_NAMESPACE);
if (import != NULL)
previous = import->schemaLocation;
else
previous = NULL;
if (schemaLocation != NULL) {
if (previous != NULL) {
if (!xmlStrEqual(schemaLocation, previous)) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_IMPORT_REDEFINE_NSNAME,
"Redefining import for default namespace with a different URI: %s\n",
schemaLocation, NULL);
}
} else {
import = xmlSchemaImportSchema(ctxt, schemaLocation);
if (import == NULL) {
return (-1);
}
xmlHashAddEntry(schema->schemasImports,
XML_SCHEMAS_DEFAULT_NAMESPACE,
import);
}
}
} else {
import = xmlHashLookup(schema->schemasImports, namespace);
if (import != NULL)
previous = import->schemaLocation;
else
previous = NULL;
if (schemaLocation != NULL) {
if (previous != NULL) {
if (!xmlStrEqual(schemaLocation, previous)) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_IMPORT_REDEFINE_NSNAME,
"Redefining import for namespace %s with a different URI: %s\n",
namespace, schemaLocation);
}
} else {
import = xmlSchemaImportSchema(ctxt, schemaLocation);
if (import == NULL) {
return (-1);
}
xmlHashAddEntry(schema->schemasImports,
namespace, import);
}
}
}
child = node->children;
while (IS_SCHEMA(child, "annotation")) {
/*
* the annotations here are simply discarded ...
*/
child = child->next;
}
if (child != NULL) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_IMPORT_CHILD,
"Import has unexpected content\n", NULL, NULL);
return (-1);
}
return (1);
}
/**
* xmlSchemaCleanupDoc:
* @ctxt: a schema validation context
* @node: the root of the document.
*
* removes unwanted nodes in a schemas document tree
*/
static void
xmlSchemaCleanupDoc(xmlSchemaParserCtxtPtr ctxt, xmlNodePtr root)
{
xmlNodePtr delete, cur;
if ((ctxt == NULL) || (root == NULL)) return;
/*
* 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;
}
}
/**
* xmlSchemaParseSchemaTopLevel:
* @ctxt: a schema validation context
* @schema: the schemas
* @nodes: the list of top level nodes
*
* Returns the internal XML Schema structure built from the resource or
* NULL in case of error
*/
static void
xmlSchemaParseSchemaTopLevel(xmlSchemaParserCtxtPtr ctxt,
xmlSchemaPtr schema, xmlNodePtr nodes)
{
xmlNodePtr child;
xmlSchemaAnnotPtr annot;
if ((ctxt == NULL) || (schema == NULL) || (nodes == NULL))
return;
child = nodes;
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, "import")) {
xmlSchemaParseImport(ctxt, schema, child);
} else if (IS_SCHEMA(child, "include")) {
ctxt->includes++;
xmlSchemaParseInclude(ctxt, schema, child);
ctxt->includes--;
} 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 {
xmlSchemaPErr2(ctxt, NULL, child,
XML_SCHEMAP_UNKNOWN_SCHEMAS_CHILD,
"Schemas: unexpected element %s here \n",
child->name, NULL);
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;
}
}
}
/**
* xmlSchemaParseInclude:
* @ctxt: a schema validation context
* @schema: the schema being built
* @node: a subtree containing XML Schema informations
*
* parse a XML schema Include definition
*
* Returns -1 in case of error, 0 if the declaration is inproper and
* 1 in case of success.
*/
static int
xmlSchemaParseInclude(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
xmlNodePtr node)
{
xmlNodePtr child = NULL;
const xmlChar *schemaLocation;
xmlURIPtr check;
xmlDocPtr doc;
xmlNodePtr root;
xmlSchemaIncludePtr include;
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (-1);
/*
* Preliminary step, extract the URI-Reference for the include and
* make an URI from the base.
*/
schemaLocation = xmlSchemaGetProp(ctxt, node, "schemaLocation");
if (schemaLocation != NULL) {
xmlChar *base = NULL;
xmlChar *URI = NULL;
check = xmlParseURI((const char *) schemaLocation);
if (check == NULL) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_INCLUDE_SCHEMA_NOT_URI,
"Include schemaLocation attribute is not an URI: %s\n",
schemaLocation, NULL);
return (-1);
} else {
xmlFreeURI(check);
}
base = xmlNodeGetBase(node->doc, node);
if (base == NULL) {
URI = xmlBuildURI(schemaLocation, node->doc->URL);
} else {
URI = xmlBuildURI(schemaLocation, base);
xmlFree(base);
}
if (URI != NULL) {
schemaLocation = xmlDictLookup(ctxt->dict, URI, -1);
xmlFree(URI);
}
} else {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_INCLUDE_SCHEMA_NO_URI,
"Include schemaLocation attribute missing\n",
NULL, NULL);
return (-1);
}
child = node->children;
while (IS_SCHEMA(child, "annotation")) {
/*
* the annotations here are simply discarded ...
*/
child = child->next;
}
if (child != NULL) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_INCLUDE_CHILD,
"Include has unexpected content\n", NULL, NULL);
return (-1);
}
/*
* First step is to parse the input document into an DOM/Infoset
*/
doc = xmlReadFile((const char *) schemaLocation, NULL,
SCHEMAS_PARSE_OPTIONS);
if (doc == NULL) {
xmlSchemaPErr(ctxt, NULL,
XML_SCHEMAP_FAILED_LOAD,
"xmlSchemaParse: could not load %s\n",
ctxt->URL, NULL);
return(-1);
}
/*
* Then extract the root of the schema
*/
root = xmlDocGetRootElement(doc);
if (root == NULL) {
xmlSchemaPErr(ctxt, (xmlNodePtr) doc,
XML_SCHEMAP_NOROOT,
"schemas %s has no root", schemaLocation, NULL);
xmlFreeDoc(doc);
return (-1);
}
/*
* Remove all the blank text nodes
*/
xmlSchemaCleanupDoc(ctxt, root);
/*
* Check the schemas top level element
*/
if (!IS_SCHEMA(root, "schema")) {
xmlSchemaPErr(ctxt, (xmlNodePtr) doc,
XML_SCHEMAP_NOT_SCHEMA,
"File %s is not a schemas", schemaLocation, NULL);
xmlFreeDoc(doc);
return (-1);
}
/*
* register the include
*/
include = (xmlSchemaIncludePtr) xmlMalloc(sizeof(xmlSchemaInclude));
if (include == NULL) {
xmlSchemaPErrMemory(ctxt, "allocating included schema", NULL);
xmlFreeDoc(doc);
return (-1);
}
memset(include, 0, sizeof(xmlSchemaInclude));
include->schemaLocation = xmlDictLookup(ctxt->dict, schemaLocation, -1);
include->doc = doc;
include->next = schema->includes;
schema->includes = include;
/*
* parse the declarations in the included file like if they
* were in the original file.
*/
xmlSchemaParseSchemaTopLevel(ctxt, schema, root->children);
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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_CHOICE;
type->id = xmlSchemaGetProp(ctxt, node, "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) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_UNKNOWN_CHOICE_CHILD,
"Choice %s has unexpected content\n", type->name,
NULL);
}
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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_SEQUENCE;
type->id = xmlSchemaGetProp(ctxt, node, "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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_SEQUENCE_CHILD,
"Sequence %s has unexpected content\n", type->name,
NULL);
}
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];
const 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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_RESTRICTION;
type->id = xmlSchemaGetProp(ctxt, node, "id");
type->base = xmlGetQNameProp(ctxt, node, "base", &(type->baseNs));
if ((!simple) && (type->base == NULL)) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_RESTRICTION_NONAME_NOREF,
"Restriction %s has no base\n", type->name, NULL);
}
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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_RESTRICTION_CHILD,
"Restriction %s has unexpected content\n",
type->name, NULL);
}
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];
const 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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_EXTENSION;
type->id = xmlSchemaGetProp(ctxt, node, "id");
ctxt->container = name;
type->base = xmlGetQNameProp(ctxt, node, "base", &(type->baseNs));
if (type->base == NULL) {
xmlSchemaPErr2(ctxt, node, child, XML_SCHEMAP_EXTENSION_NO_BASE,
"Extension %s has no base\n", type->name, NULL);
}
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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_EXTENSION_CHILD,
"Extension %s has unexpected content\n", type->name,
NULL);
}
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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_SIMPLE_CONTENT;
type->id = xmlSchemaGetProp(ctxt, node, "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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_SIMPLECONTENT_CHILD,
"SimpleContent %s has unexpected content\n",
type->name, NULL);
}
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, NULL);
if (type == NULL)
return (NULL);
type->node = node;
type->type = XML_SCHEMA_TYPE_COMPLEX_CONTENT;
type->id = xmlSchemaGetProp(ctxt, node, "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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_COMPLEXCONTENT_CHILD,
"ComplexContent %s has unexpected content\n",
type->name, NULL);
}
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;
const xmlChar *name;
const xmlChar *oldcontainer;
char buf[100];
if ((ctxt == NULL) || (schema == NULL) || (node == NULL))
return (NULL);
oldcontainer = ctxt->container;
name = xmlSchemaGetProp(ctxt, node, "name");
if (name == NULL) {
snprintf(buf, 99, "anontype %d", ctxt->counter++ + 1);
name = (const xmlChar *)buf;
type = xmlSchemaAddType(ctxt, schema, name, NULL);
} else {
const xmlChar *local, *ns;
local = xmlSchemaGetNamespace(ctxt, schema, node, name, &ns);
type = xmlSchemaAddType(ctxt, schema, local, ns);
}
if (type == NULL) {
return (NULL);
}
type->node = node;
type->type = XML_SCHEMA_TYPE_COMPLEX;
type->id = xmlSchemaGetProp(ctxt, node, "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) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_UNKNOWN_COMPLEXTYPE_CHILD,
"ComplexType %s has unexpected content\n",
type->name, NULL);
}
ctxt->container = oldcontainer;
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;
xmlNodePtr child = NULL;
const 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);
val = xmlSchemaGetProp(ctxt, node, "targetNamespace");
if (val != NULL) {
schema->targetNamespace = xmlDictLookup(ctxt->dict, val, -1);
} else {
schema->targetNamespace = NULL;
}
schema->id = xmlSchemaGetProp(ctxt, node, "id");
schema->version = xmlSchemaGetProp(ctxt, node, "version");
val = xmlSchemaGetProp(ctxt, node, "elementFormDefault");
if (val != NULL) {
if (xmlStrEqual(val, BAD_CAST "qualified"))
schema->flags |= XML_SCHEMAS_QUALIF_ELEM;
else if (!xmlStrEqual(val, BAD_CAST "unqualified")) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_ELEMFORMDEFAULT_VALUE,
"Invalid value %s for elementFormDefault\n",
val, NULL);
}
} else {
schema->flags |= XML_SCHEMAS_QUALIF_ELEM;
}
val = xmlSchemaGetProp(ctxt, node, "attributeFormDefault");
if (val != NULL) {
if (xmlStrEqual(val, BAD_CAST "qualified"))
schema->flags |= XML_SCHEMAS_QUALIF_ATTR;
else if (!xmlStrEqual(val, BAD_CAST "unqualified")) {
xmlSchemaPErr2(ctxt, node, child,
XML_SCHEMAP_ATTRFORMDEFAULT_VALUE,
"Invalid value %s for attributeFormDefault\n",
val, NULL);
}
}
xmlSchemaParseSchemaTopLevel(ctxt, schema, node->children);
} else {
xmlDocPtr doc;
doc = node->doc;
if ((doc != NULL) && (doc->URL != NULL)) {
xmlSchemaPErr(ctxt, (xmlNodePtr) doc,
XML_SCHEMAP_NOT_SCHEMA,
"File %s is not a schemas", doc->URL, NULL);
} else {
xmlSchemaPErr(ctxt, (xmlNodePtr) doc,
XML_SCHEMAP_NOT_SCHEMA,
"File is not a schemas", NULL, NULL);
}
return(NULL);
}
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) {
xmlSchemaPErrMemory(NULL, "allocating schama parser context",
NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaParserCtxt));
ret->dict = xmlDictCreate();
ret->URL = xmlDictLookup(ret->dict, (const xmlChar *) URL, -1);
ret->includes = 0;
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) {
xmlSchemaPErrMemory(NULL, "allocating schama parser context",
NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaParserCtxt));
ret->buffer = buffer;
ret->size = size;
ret->dict = xmlDictCreate();
return (ret);
}
/**
* xmlSchemaNewDocParserCtxt:
* @doc: a preparsed document tree
*
* Create an XML Schemas parse context for that document.
* NB. The document may be modified during the parsing process.
*
* Returns the parser context or NULL in case of error
*/
xmlSchemaParserCtxtPtr
xmlSchemaNewDocParserCtxt(xmlDocPtr doc)
{
xmlSchemaParserCtxtPtr ret;
if (doc == NULL)
return (NULL);
ret = (xmlSchemaParserCtxtPtr) xmlMalloc(sizeof(xmlSchemaParserCtxt));
if (ret == NULL) {
xmlSchemaPErrMemory(NULL, "allocating schema parser context",
NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchemaParserCtxt));
ret->doc = doc;
ret->dict = xmlDictCreate();
/* The application has responsibility for the document */
ret->preserve = 1;
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->doc != NULL && !ctxt->preserve)
xmlFreeDoc(ctxt->doc);
xmlDictFree(ctxt->dict);
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) ||
(elem->subtypes->contentType == XML_SCHEMA_CONTENT_SIMPLE))
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) {
xmlSchemaPErr(ctxt, elem->node, XML_SCHEMAS_ERR_INTERNAL,
"failed to compile %s content model\n", name, NULL);
} else if (xmlRegexpIsDeterminist(elem->contModel) != 1) {
xmlSchemaPErr(ctxt, elem->node, XML_SCHEMAS_ERR_NOTDETERMINIST,
"Content model of %s is not determinist:\n", name,
NULL);
} 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) {
xmlSchemaPErr(ctxt, elem->node,
XML_SCHEMAP_INVALID_REF_AND_SUBTYPE,
"Schemas: element %s have both ref and subtype\n",
name, NULL);
return;
}
elemDecl = xmlSchemaGetElem(ctxt->schema, elem->ref, elem->refNs, 0);
if (elemDecl == NULL) {
xmlSchemaPErr(ctxt, elem->node, XML_SCHEMAP_UNKNOWN_REF,
"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) {
xmlSchemaPErr(ctxt, elem->node, XML_SCHEMAP_TYPE_AND_SUBTYPE,
"Schemas: element %s have both type and subtype\n",
name, NULL);
return;
}
typeDecl = xmlSchemaGetType(ctxt->schema, elem->namedType,
elem->namedTypeNs);
if (typeDecl == NULL) {
xmlSchemaPErr(ctxt, elem->node, XML_SCHEMAP_UNKNOWN_TYPE,
"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) {
xmlSchemaPErr(ctxt, typeDecl->node,
XML_SCHEMAP_UNKNOWN_BASE_TYPE,
"Schemas: type %s base type %s not found\n",
name, typeDecl->base);
}
typeDecl->baseType = baseType;
}
if (typeDecl->subtypes == NULL)
if (typeDecl->baseType != NULL)
typeDecl->contentType =
typeDecl->baseType->contentType;
else
/* 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) {
xmlSchemaPErr(ctxt, typeDecl->node,
XML_SCHEMAP_UNKNOWN_BASE_TYPE,
"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) {
xmlSchemaPErr(ctxt, typeDecl->node,
XML_SCHEMAP_UNKNOWN_BASE_TYPE,
"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;
}
if (typeDecl->attributes == NULL)
typeDecl->attributes =
typeDecl->subtypes->attributes;
}
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;
}
if (typeDecl->attributes == NULL)
typeDecl->attributes =
typeDecl->subtypes->attributes;
}
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;
if (typeDecl->subtypes != NULL)
xmlSchemaTypeFixup(typeDecl->subtypes, ctxt, NULL);
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) {
xmlSchemaPErr(ctxt, facet->node,
XML_SCHEMAP_INVALID_FACET,
"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) {
xmlSchemaPErr(ctxt, facet->node,
XML_SCHEMAP_INVALID_ENUM,
"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) {
xmlSchemaPErr(ctxt, typeDecl->node,
XML_SCHEMAP_REGEXP_INVALID,
"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) {
xmlSchemaPErr(ctxt, facet->node,
XML_SCHEMAP_INVALID_FACET_VALUE,
"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) {
xmlSchemaPErr(ctxt, facet->node,
XML_SCHEMAP_INVALID_WHITE_SPACE,
"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) {
xmlSchemaPErr(ctxt, attrgrpDecl->node,
XML_SCHEMAP_UNKNOWN_ATTRIBUTE_GROUP,
"Schemas: attribute group %s reference %s not found\n",
name, attrgrpDecl->ref);
return;
}
xmlSchemaAttrGrpFixup(ref, ctxt, NULL);
attrgrpDecl->attributes = ref->attributes;
} else {
xmlSchemaPErr(ctxt, attrgrpDecl->node, XML_SCHEMAP_NOATTR_NOREF,
"Schemas: attribute %s has no attributes nor reference\n",
name, NULL);
}
}
/**
* 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) {
xmlSchemaPErr(ctxt, attrDecl->node, XML_SCHEMAP_UNKNOWN_TYPE,
"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) {
xmlSchemaPErr(ctxt, attrDecl->node, XML_SCHEMAP_UNKNOWN_REF,
"Schemas: attribute %s reference %s not found\n",
name, attrDecl->ref);
return;
}
xmlSchemaAttrFixup(ref, ctxt, NULL);
attrDecl->subtypes = ref->subtypes;
} else {
xmlSchemaPErr(ctxt, attrDecl->node, XML_SCHEMAP_NOTYPE_NOREF,
"Schemas: attribute %s has no type nor reference\n",
name, NULL);
}
}
/**
* 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;
int nberrors;
int preserve = 0;
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 = xmlReadFile((const char *) ctxt->URL, NULL,
SCHEMAS_PARSE_OPTIONS);
if (doc == NULL) {
xmlSchemaPErr(ctxt, NULL,
XML_SCHEMAP_FAILED_LOAD,
"xmlSchemaParse: could not load %s\n",
ctxt->URL, NULL);
return (NULL);
}
} else if (ctxt->buffer != NULL) {
doc = xmlReadMemory(ctxt->buffer, ctxt->size, NULL, NULL,
SCHEMAS_PARSE_OPTIONS);
if (doc == NULL) {
xmlSchemaPErr(ctxt, NULL,
XML_SCHEMAP_FAILED_PARSE,
"xmlSchemaParse: could not parse\n",
NULL, NULL);
return (NULL);
}
doc->URL = xmlStrdup(BAD_CAST "in_memory_buffer");
ctxt->URL = xmlDictLookup(ctxt->dict, BAD_CAST "in_memory_buffer", -1);
} else if (ctxt->doc != NULL) {
doc = ctxt->doc;
preserve = 1;
} else {
xmlSchemaPErr(ctxt, NULL,
XML_SCHEMAP_NOTHING_TO_PARSE,
"xmlSchemaParse: could not parse\n",
NULL, NULL);
return (NULL);
}
/*
* Then extract the root and Schema parse it
*/
root = xmlDocGetRootElement(doc);
if (root == NULL) {
xmlSchemaPErr(ctxt, (xmlNodePtr) doc,
XML_SCHEMAP_NOROOT,
"schemas has no root", NULL, NULL);
if (!preserve) {
xmlFreeDoc(doc);
}
return (NULL);
}
/*
* Remove all the blank text nodes
*/
xmlSchemaCleanupDoc(ctxt, root);
/*
* Then do the parsing for good
*/
ret = xmlSchemaParseSchema(ctxt, root);
if (ret == NULL) {
if (!preserve) {
xmlFreeDoc(doc);
}
return (NULL);
}
ret->doc = doc;
ret->preserve = preserve;
/*
* Then fix all the references.
*/
ctxt->schema = ret;
xmlHashScanFull(ret->elemDecl,
(xmlHashScannerFull) xmlSchemaRefFixupCallback, ctxt);
/*
* Then fixup all attributes declarations
*/
xmlHashScan(ret->attrDecl, (xmlHashScanner) xmlSchemaAttrFixup, ctxt);
/*
* Then fixup all attributes group declarations
*/
xmlHashScan(ret->attrgrpDecl, (xmlHashScanner) xmlSchemaAttrGrpFixup,
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);
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, const 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;
xmlSchemaVErr(ctxt, ctxt->cur, XML_SCHEMAS_ERR_FACET, "Failed to validate type with facet %s\n", (const xmlChar *) xmlSchemaFacetTypeToString(type), NULL);
}
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, const 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) {
xmlSchemaVErr(ctxt, ctxt->cur, XML_SCHEMAS_ERR_VALUE, "Failed to validate basic type %s\n", type->name, NULL);
}
} 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) {
TODO
}
/*
* Do not validate facets or attributes 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;
const xmlChar *cur, *end;
xmlChar *tmp;
int ret2;
base = type->subtypes;
if (base == NULL) {
xmlSchemaVErr(ctxt, type->node, XML_SCHEMAS_ERR_INTERNAL,
"Internal: List type %s has no base type\n",
type->name, NULL);
return (-1);
}
cur = value;
do {
while (IS_BLANK_CH(*cur))
cur++;
end = cur;
while ((*end != 0) && (!(IS_BLANK_CH(*end))))
end++;
if (end == cur)
break;
tmp = xmlStrndup(cur, end - cur);
ret2 = xmlSchemaValidateSimpleValue(ctxt, base, tmp);
xmlFree(tmp);
if (ret2 != 0)
ret = 1;
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) {
xmlSchemaVErrMemory(ctxt, "registering attributes", 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;
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_ATTRUNKNOWN, "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);
}
if ((ret == 0) && (type->attributes != NULL)) {
ret = xmlSchemaValidateAttributes(ctxt, node,
type->attributes);
}
break;
}
case XML_SCHEMA_TYPE_EXTENSION:{
TODO
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)) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INTERNAL, "Internal error: xmlSchemaValidateSimpleRestrictionType %s\n", node->name, NULL);
return (-1);
}
/*
* Only text and text based entities references shall be found there
*/
ret = xmlSchemaValidateCheckNodeList(child);
if (ret < 0) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INTERNAL, "Internal error: xmlSchemaValidateSimpleType %s content\n", node->name, NULL);
return (-1);
} else if (ret == 0) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_NOTSIMPLE, "Element %s content is not a simple type\n", node->name, NULL);
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)) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INTERNAL, "Internal error: xmlSchemaValidateSimpleType %s\n", node->name, NULL);
return (-1);
}
/*
* Only text and text based entities references shall be found there
*/
ret = xmlSchemaValidateCheckNodeList(child);
if (ret < 0) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INTERNAL, "Internal error: xmlSchemaValidateSimpleType %s content\n", node->name, NULL);
return (-1);
} else if (ret == 0) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_NOTSIMPLE, "Element %s content is not a simple type\n", node->name, NULL);
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")))) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INVALIDATTR, "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)) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INTERNAL, "Internal error: xmlSchemaValidateElementType\n", node->name, NULL);
return (-1);
}
if (child == NULL) {
if (type->minOccurs > 0) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_MISSING, "Element %s: missing child %s\n", node->name, type->name);
}
return (ctxt->err);
}
/*
* Verify the element matches
*/
if (!xmlStrEqual(child->name, type->name)) {
xmlSchemaVErr3(ctxt, node, XML_SCHEMAS_ERR_WRONGELEM, "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) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_ELEMCONT, "Element %s content check failed\n", node->name, NULL);
} else if (ret < 0) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_ELEMCONT, "Element %s content check failure\n", node->name, NULL);
#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)) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INTERNAL, "Internal error: xmlSchemaValidateBasicType\n", node->name, NULL);
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:
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INVALIDELEM, "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
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INVALIDELEM, "Element %s: node type of node unexpected here\n", node->name, NULL);
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) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_VALUE, "Element %s: failed to validate basic type %s\n", node->name, type->name);
}
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 (type->baseType != NULL) {
} else if (child != NULL) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_NOTEMPTY, "Element %s is supposed to be empty\n", node->name, NULL);
}
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);
}
if (type->attributes != NULL) {
xmlSchemaValidateAttributes(ctxt, node, type->attributes);
}
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;
}
case XML_SCHEMA_CONTENT_SIMPLE:{
if (type->subtypes != NULL) {
ctxt->type = type->subtypes;
xmlSchemaValidateComplexType(ctxt, node);
}
if (type->baseType != NULL) {
ctxt->type = type->baseType;
xmlSchemaValidateComplexType(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) {
xmlSchemaVErr(ctxt, node, XML_SCHEMAS_ERR_INTERNAL, "Internal error: element reference %s not resolved\n", decl->ref, NULL);
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) {
xmlSchemaVErr(ctxt, elem, XML_SCHEMAS_ERR_ISABSTRACT, "Element %s is abstract\n", elem->name, NULL);
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) {
xmlSchemaVErr(ctxt, elem, XML_SCHEMAS_ERR_NOTEMPTY, "Element %s is not empty\n", elem->name, NULL);
return (ctxt->err);
}
if ((elemDecl->flags & XML_SCHEMAS_ELEM_FIXED) &&
(elemDecl->value != NULL)) {
xmlSchemaVErr(ctxt, elem, XML_SCHEMAS_ERR_HAVEDEFAULT, "Empty element %s cannot get a fixed value\n", elem->name, NULL);
return (ctxt->err);
}
}
} else {
/* 3.3.4: 3.1 */
if (nil != NULL) {
xmlSchemaVErr(ctxt, elem, XML_SCHEMAS_ERR_NOTNILLABLE, "Element %s with xs:nil but not nillable\n", elem->name, NULL);
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;
/*
* handle the namespaces checks here
*/
if (attr->ns == NULL) {
/*
* accept an unqualified attribute only if the declaration
* is unqualified or if the schemas allowed it.
*/
if ((attributes->targetNamespace != NULL) &&
((attributes->flags & XML_SCHEMAS_ATTR_NSDEFAULT) == 0))
continue;
} else {
if (attributes->targetNamespace == NULL)
continue;
if (!xmlStrEqual(attributes->targetNamespace,
attr->ns->href))
continue;
}
}
ctxt->cur = (xmlNodePtr) attributes;
if (attributes->subtypes == NULL) {
xmlSchemaVErr(ctxt, (xmlNodePtr) attr, XML_SCHEMAS_ERR_INTERNAL, "Internal error: attribute %s type not resolved\n", attr->name, NULL);
continue;
}
value = xmlNodeListGetString(elem->doc, attr->children, 1);
ret = xmlSchemaValidateSimpleValue(ctxt, attributes->subtypes,
value);
if (ret != 0) {
xmlSchemaVErr(ctxt, (xmlNodePtr) attr, XML_SCHEMAS_ERR_ATTRINVALID, "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);
}
/*
* special case whe elementFormDefault is unqualified for top-level elem.
*/
if ((elemDecl == NULL) && (elem->ns != NULL) &&
(elem->parent != NULL) && (elem->parent->type != XML_ELEMENT_NODE) &&
(xmlStrEqual(ctxt->schema->targetNamespace, elem->ns->href)) &&
((ctxt->schema->flags & XML_SCHEMAS_QUALIF_ELEM) == 0)) {
elemDecl = xmlHashLookup3(ctxt->schema->elemDecl,
elem->name, NULL, NULL);
}
/*
* 3.3.4 : 1
*/
if (elemDecl == NULL) {
xmlSchemaVErr(ctxt, elem, XML_SCHEMAS_ERR_UNDECLAREDELEM, "Element %s not declared\n", elem->name, NULL);
return (ctxt->err);
}
if (elemDecl->subtypes == NULL) {
xmlSchemaVErr(ctxt, elem, XML_SCHEMAS_ERR_NOTYPE, "Element %s has no type\n", elem->name, NULL);
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) {
xmlSchemaVErr(ctxt, elem, XML_SCHEMAS_ERR_ELEMCONT, "Element %s content check failed\n", elem->name, NULL);
} else if (ret < 0) {
xmlSchemaVErr(ctxt, elem, XML_SCHEMAS_ERR_ELEMCONT, "Element %s content check failed\n", elem->name, NULL);
#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) {
xmlSchemaVErr(ctxt, (xmlNodePtr) doc, XML_SCHEMAS_ERR_NOROOT, "document has no root\n", NULL, NULL);
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);
/*
* special case whe elementFormDefault is unqualified for top-level elem.
*/
if ((elemDecl == NULL) && (root->ns != NULL) &&
(xmlStrEqual(ctxt->schema->targetNamespace, root->ns->href)) &&
((ctxt->schema->flags & XML_SCHEMAS_QUALIF_ELEM) == 0)) {
elemDecl = xmlHashLookup3(ctxt->schema->elemDecl,
root->name, NULL, NULL);
}
if (elemDecl == NULL) {
xmlSchemaVErr(ctxt, root, XML_SCHEMAS_ERR_UNDECLAREDELEM, "Element %s not declared\n", root->name, NULL);
} else if ((elemDecl->flags & XML_SCHEMAS_ELEM_TOPLEVEL) == 0) {
xmlSchemaVErr(ctxt, root, XML_SCHEMAS_ERR_NOTTOPLEVEL, "Root element %s not toplevel\n", root->name, NULL);
}
/*
* 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) {
xmlSchemaVErrMemory(NULL, "allocating validation context", NULL);
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) {
xmlSchemaVErrMemory(NULL, "allocating validation context", 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 */
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