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xmlschemas.c
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28480 lines (26832 loc) · 801 KB
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/*
* schemas.c : implementation of the XML Schema handling and
* schema validity checking
*
* See Copyright for the status of this software.
*
* Author: Daniel Veillard
*/
/*
* TODO:
* - when types are redefined in includes, check that all
* types in the redef list are equal
* -> need a type equality operation.
* - if we don't intend to use the schema for schemas, we
* need to validate all schema attributes (ref, type, name)
* against their types.
* - Eliminate item creation for: ??
*
* URGENT TODO:
* - For xsi-driven schema acquisition, augment the IDCs after every
* acquisition episode (xmlSchemaAugmentIDC).
*
* NOTES:
* - Eliminated item creation for: <restriction>, <extension>,
* <simpleContent>, <complexContent>, <list>, <union>
*
* PROBLEMS:
* - http://lists.w3.org/Archives/Public/www-xml-schema-comments/2005JulSep/0337.html
* IDC XPath expression and chameleon includes: the targetNamespace is changed, so
* XPath will have trouble to resolve to this namespace, since not known.
*
*
* CONSTRAINTS:
*
* Schema Component Constraint:
* All Group Limited (cos-all-limited)
* Status: complete
* (1.2)
* In #xmlSchemaGroupDefReferenceTermFixup and
* (2)
* In #xmlSchemaParseModelGroup
* TODO: Actually this should go to component-level checks,
* but is done here due to performance. Move it to an other layer
* is schema construction via an API is implemented.
*/
/* To avoid EBCDIC trouble when parsing on zOS */
#if defined(__MVS__)
#pragma convert("ISO8859-1")
#endif
#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>
#include <libxml/encoding.h>
#include <libxml/xmlIO.h>
#ifdef LIBXML_PATTERN_ENABLED
#include <libxml/pattern.h>
#endif
#ifdef LIBXML_READER_ENABLED
#include <libxml/xmlreader.h>
#endif
#include "private/error.h"
#include "private/memory.h"
#include "private/string.h"
/* #define WXS_ELEM_DECL_CONS_ENABLED */
/* #define ENABLE_PARTICLE_RESTRICTION 1 */
#define ENABLE_REDEFINE
/* #define ENABLE_NAMED_LOCALS */
/* #define ENABLE_IDC_NODE_TABLES_TEST */
#define DUMP_CONTENT_MODEL
#ifdef LIBXML_READER_ENABLED
/* #define XML_SCHEMA_READER_ENABLED */
#endif
#define UNBOUNDED (1 << 30)
#define XML_SCHEMAS_NO_NAMESPACE (const xmlChar *) "##"
/*
* 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";
static const xmlChar *xmlNamespaceNs = (const xmlChar *)
"http://www.w3.org/2000/xmlns/";
/*
* Come casting macros.
*/
#define ACTXT_CAST (xmlSchemaAbstractCtxtPtr)
#define PCTXT_CAST (xmlSchemaParserCtxtPtr)
#define VCTXT_CAST (xmlSchemaValidCtxtPtr)
#define WXS_BASIC_CAST (xmlSchemaBasicItemPtr)
#define WXS_TREE_CAST (xmlSchemaTreeItemPtr)
#define WXS_PTC_CAST (xmlSchemaParticlePtr)
#define WXS_TYPE_CAST (xmlSchemaTypePtr)
#define WXS_ELEM_CAST (xmlSchemaElementPtr)
#define WXS_ATTR_GROUP_CAST (xmlSchemaAttributeGroupPtr)
#define WXS_ATTR_CAST (xmlSchemaAttributePtr)
#define WXS_ATTR_USE_CAST (xmlSchemaAttributeUsePtr)
#define WXS_ATTR_PROHIB_CAST (xmlSchemaAttributeUseProhibPtr)
#define WXS_MODEL_GROUPDEF_CAST (xmlSchemaModelGroupDefPtr)
#define WXS_MODEL_GROUP_CAST (xmlSchemaModelGroupPtr)
#define WXS_IDC_CAST (xmlSchemaIDCPtr)
#define WXS_QNAME_CAST (xmlSchemaQNameRefPtr)
#define WXS_LIST_CAST (xmlSchemaItemListPtr)
/*
* Macros to query common properties of components.
*/
#define WXS_ITEM_NODE(i) xmlSchemaGetComponentNode(WXS_BASIC_CAST (i))
#define WXS_ITEM_TYPE_NAME(i) xmlSchemaGetComponentTypeStr(WXS_BASIC_CAST (i))
/*
* Macros for element declarations.
*/
#define WXS_ELEM_TYPEDEF(e) (e)->subtypes
#define WXS_SUBST_HEAD(item) (item)->refDecl
/*
* Macros for attribute declarations.
*/
#define WXS_ATTR_TYPEDEF(a) (a)->subtypes
/*
* Macros for attribute uses.
*/
#define WXS_ATTRUSE_DECL(au) (WXS_ATTR_USE_CAST (au))->attrDecl
#define WXS_ATTRUSE_TYPEDEF(au) WXS_ATTR_TYPEDEF(WXS_ATTRUSE_DECL( WXS_ATTR_USE_CAST au))
#define WXS_ATTRUSE_DECL_NAME(au) (WXS_ATTRUSE_DECL(au))->name
#define WXS_ATTRUSE_DECL_TNS(au) (WXS_ATTRUSE_DECL(au))->targetNamespace
/*
* Macros for attribute groups.
*/
#define WXS_ATTR_GROUP_HAS_REFS(ag) ((WXS_ATTR_GROUP_CAST (ag))->flags & XML_SCHEMAS_ATTRGROUP_HAS_REFS)
#define WXS_ATTR_GROUP_EXPANDED(ag) ((WXS_ATTR_GROUP_CAST (ag))->flags & XML_SCHEMAS_ATTRGROUP_WILDCARD_BUILDED)
/*
* Macros for particles.
*/
#define WXS_PARTICLE(p) WXS_PTC_CAST (p)
#define WXS_PARTICLE_TERM(p) (WXS_PARTICLE(p))->children
#define WXS_PARTICLE_TERM_AS_ELEM(p) (WXS_ELEM_CAST WXS_PARTICLE_TERM(p))
#define WXS_PARTICLE_MODEL(p) WXS_MODEL_GROUP_CAST WXS_PARTICLE(p)->children
/*
* Macros for model groups definitions.
*/
#define WXS_MODELGROUPDEF_MODEL(mgd) (WXS_MODEL_GROUP_CAST (mgd))->children
/*
* Macros for model groups.
*/
#define WXS_IS_MODEL_GROUP(i) \
(((i)->type == XML_SCHEMA_TYPE_SEQUENCE) || \
((i)->type == XML_SCHEMA_TYPE_CHOICE) || \
((i)->type == XML_SCHEMA_TYPE_ALL))
#define WXS_MODELGROUP_PARTICLE(mg) WXS_PTC_CAST (mg)->children
/*
* Macros for schema buckets.
*/
#define WXS_IS_BUCKET_INCREDEF(t) (((t) == XML_SCHEMA_SCHEMA_INCLUDE) || \
((t) == XML_SCHEMA_SCHEMA_REDEFINE))
#define WXS_IS_BUCKET_IMPMAIN(t) (((t) == XML_SCHEMA_SCHEMA_MAIN) || \
((t) == XML_SCHEMA_SCHEMA_IMPORT))
#define WXS_IMPBUCKET(b) ((xmlSchemaImportPtr) (b))
#define WXS_INCBUCKET(b) ((xmlSchemaIncludePtr) (b))
/*
* Macros for complex/simple types.
*/
#define WXS_IS_ANYTYPE(i) \
(( (i)->type == XML_SCHEMA_TYPE_BASIC) && \
( (WXS_TYPE_CAST (i))->builtInType == XML_SCHEMAS_ANYTYPE))
#define WXS_IS_COMPLEX(i) \
(((i)->type == XML_SCHEMA_TYPE_COMPLEX) || \
((i)->builtInType == XML_SCHEMAS_ANYTYPE))
#define WXS_IS_SIMPLE(item) \
((item->type == XML_SCHEMA_TYPE_SIMPLE) || \
((item->type == XML_SCHEMA_TYPE_BASIC) && \
(item->builtInType != XML_SCHEMAS_ANYTYPE)))
#define WXS_IS_ANY_SIMPLE_TYPE(i) \
(((i)->type == XML_SCHEMA_TYPE_BASIC) && \
((i)->builtInType == XML_SCHEMAS_ANYSIMPLETYPE))
#define WXS_IS_RESTRICTION(t) \
((t)->flags & XML_SCHEMAS_TYPE_DERIVATION_METHOD_RESTRICTION)
#define WXS_IS_EXTENSION(t) \
((t)->flags & XML_SCHEMAS_TYPE_DERIVATION_METHOD_EXTENSION)
#define WXS_IS_TYPE_NOT_FIXED(i) \
(((i)->type != XML_SCHEMA_TYPE_BASIC) && \
(((i)->flags & XML_SCHEMAS_TYPE_INTERNAL_RESOLVED) == 0))
#define WXS_IS_TYPE_NOT_FIXED_1(item) \
(((item)->type != XML_SCHEMA_TYPE_BASIC) && \
(((item)->flags & XML_SCHEMAS_TYPE_FIXUP_1) == 0))
#define WXS_TYPE_IS_GLOBAL(t) ((t)->flags & XML_SCHEMAS_TYPE_GLOBAL)
#define WXS_TYPE_IS_LOCAL(t) (((t)->flags & XML_SCHEMAS_TYPE_GLOBAL) == 0)
/*
* Macros for exclusively for complex types.
*/
#define WXS_HAS_COMPLEX_CONTENT(item) \
((item->contentType == XML_SCHEMA_CONTENT_MIXED) || \
(item->contentType == XML_SCHEMA_CONTENT_EMPTY) || \
(item->contentType == XML_SCHEMA_CONTENT_ELEMENTS))
#define WXS_HAS_SIMPLE_CONTENT(item) \
((item->contentType == XML_SCHEMA_CONTENT_SIMPLE) || \
(item->contentType == XML_SCHEMA_CONTENT_BASIC))
#define WXS_HAS_MIXED_CONTENT(item) \
(item->contentType == XML_SCHEMA_CONTENT_MIXED)
#define WXS_EMPTIABLE(t) \
(xmlSchemaIsParticleEmptiable(WXS_PTC_CAST (t)->subtypes))
#define WXS_TYPE_CONTENTTYPE(t) (t)->subtypes
#define WXS_TYPE_PARTICLE(t) WXS_PTC_CAST (t)->subtypes
#define WXS_TYPE_PARTICLE_TERM(t) WXS_PARTICLE_TERM(WXS_TYPE_PARTICLE(t))
/*
* Macros for exclusively for simple types.
*/
#define WXS_LIST_ITEMTYPE(t) (t)->subtypes
#define WXS_IS_ATOMIC(t) (t->flags & XML_SCHEMAS_TYPE_VARIETY_ATOMIC)
#define WXS_IS_LIST(t) (t->flags & XML_SCHEMAS_TYPE_VARIETY_LIST)
#define WXS_IS_UNION(t) (t->flags & XML_SCHEMAS_TYPE_VARIETY_UNION)
/*
* Misc parser context macros.
*/
#define WXS_CONSTRUCTOR(ctx) (ctx)->constructor
#define WXS_HAS_BUCKETS(ctx) \
( (WXS_CONSTRUCTOR((ctx))->buckets != NULL) && \
(WXS_CONSTRUCTOR((ctx))->buckets->nbItems > 0) )
#define WXS_SUBST_GROUPS(ctx) WXS_CONSTRUCTOR((ctx))->substGroups
#define WXS_BUCKET(ctx) WXS_CONSTRUCTOR((ctx))->bucket
#define WXS_SCHEMA(ctx) (ctx)->schema
#define WXS_ADD_LOCAL(ctx, item) \
do { \
if ((item != NULL) && \
(xmlSchemaAddItemSize(&(WXS_BUCKET(ctx)->locals), 10, \
item) < 0)) { \
xmlSchemaPErrMemory(ctx); \
xmlFree(item); \
item = NULL; \
} \
} while (0)
#define WXS_ADD_GLOBAL(ctx, item) \
do { \
if ((item != NULL) && \
(xmlSchemaAddItemSize(&(WXS_BUCKET(ctx)->globals), 5, \
item) < 0)) { \
xmlSchemaPErrMemory(ctx); \
xmlFree(item); \
item = NULL; \
} \
} while (0)
#define WXS_ADD_PENDING(ctx, item) \
do { \
if ((item != NULL) && \
(xmlSchemaAddItemSize(&((ctx)->constructor->pending), 10, \
item) < 0)) { \
xmlSchemaPErrMemory(ctx); \
} \
} while (0)
/*
* xmlSchemaItemList macros.
*/
#define WXS_ILIST_IS_EMPTY(l) ((l == NULL) || ((l)->nbItems == 0))
/*
* Misc macros.
*/
#define IS_SCHEMA(node, type) \
((node != NULL) && (node->ns != NULL) && \
(xmlStrEqual(node->name, (const xmlChar *) type)) && \
(xmlStrEqual(node->ns->href, xmlSchemaNs)))
#define FREE_AND_NULL(str) if ((str) != NULL) { xmlFree((xmlChar *) (str)); str = NULL; }
/*
* Since we put the default/fixed values into the dict, we can
* use pointer comparison for those values.
* REMOVED: (xmlStrEqual((v1), (v2)))
*/
#define WXS_ARE_DEFAULT_STR_EQUAL(v1, v2) ((v1) == (v2))
#define INODE_NILLED(item) (item->flags & XML_SCHEMA_ELEM_INFO_NILLED)
#define CAN_PARSE_SCHEMA(b) (((b)->doc != NULL) && ((b)->parsed == 0))
#define HFAILURE if (res == -1) goto exit_failure;
#define HERROR if (res != 0) goto exit_error;
#define HSTOP(ctx) if ((ctx)->stop) goto exit;
/*
* Some flags used for various schema constraints.
*/
#define SUBSET_RESTRICTION 1<<0
#define SUBSET_EXTENSION 1<<1
#define SUBSET_SUBSTITUTION 1<<2
#define SUBSET_LIST 1<<3
#define SUBSET_UNION 1<<4
typedef struct _xmlSchemaNodeInfo xmlSchemaNodeInfo;
typedef xmlSchemaNodeInfo *xmlSchemaNodeInfoPtr;
typedef struct _xmlSchemaItemList xmlSchemaItemList;
typedef xmlSchemaItemList *xmlSchemaItemListPtr;
struct _xmlSchemaItemList {
void **items; /* used for dynamic addition of schemata */
int nbItems; /* used for dynamic addition of schemata */
int sizeItems; /* used for dynamic addition of schemata */
};
#define XML_SCHEMA_CTXT_PARSER 1
#define XML_SCHEMA_CTXT_VALIDATOR 2
typedef struct _xmlSchemaAbstractCtxt xmlSchemaAbstractCtxt;
typedef xmlSchemaAbstractCtxt *xmlSchemaAbstractCtxtPtr;
struct _xmlSchemaAbstractCtxt {
int type; /* E.g. XML_SCHEMA_CTXT_VALIDATOR */
void *dummy; /* Fix alignment issues */
};
typedef struct _xmlSchemaBucket xmlSchemaBucket;
typedef xmlSchemaBucket *xmlSchemaBucketPtr;
#define XML_SCHEMA_SCHEMA_MAIN 0
#define XML_SCHEMA_SCHEMA_IMPORT 1
#define XML_SCHEMA_SCHEMA_INCLUDE 2
#define XML_SCHEMA_SCHEMA_REDEFINE 3
/**
* Used to create a graph of schema relationships.
*/
typedef struct _xmlSchemaSchemaRelation xmlSchemaSchemaRelation;
typedef xmlSchemaSchemaRelation *xmlSchemaSchemaRelationPtr;
struct _xmlSchemaSchemaRelation {
xmlSchemaSchemaRelationPtr next;
int type; /* E.g. XML_SCHEMA_SCHEMA_IMPORT */
const xmlChar *importNamespace;
xmlSchemaBucketPtr bucket;
};
#define XML_SCHEMA_BUCKET_MARKED 1<<0
#define XML_SCHEMA_BUCKET_COMPS_ADDED 1<<1
struct _xmlSchemaBucket {
int type;
int flags;
const xmlChar *schemaLocation;
const xmlChar *origTargetNamespace;
const xmlChar *targetNamespace;
xmlDocPtr doc;
xmlSchemaSchemaRelationPtr relations;
int located;
int parsed;
int imported;
int preserveDoc;
xmlSchemaItemListPtr globals; /* Global components. */
xmlSchemaItemListPtr locals; /* Local components. */
};
/**
* (extends xmlSchemaBucket)
*
* Reflects a schema. Holds some information
* about the schema and its toplevel components. Duplicate
* toplevel components are not checked at this level.
*/
typedef struct _xmlSchemaImport xmlSchemaImport;
typedef xmlSchemaImport *xmlSchemaImportPtr;
struct _xmlSchemaImport {
int type; /* Main OR import OR include. */
int flags;
const xmlChar *schemaLocation; /* The URI of the schema document. */
/* For chameleon includes, @origTargetNamespace will be NULL */
const xmlChar *origTargetNamespace;
/*
* For chameleon includes, @targetNamespace will be the
* targetNamespace of the including schema.
*/
const xmlChar *targetNamespace;
xmlDocPtr doc; /* The schema node-tree. */
/* @relations will hold any included/imported/redefined schemas. */
xmlSchemaSchemaRelationPtr relations;
int located;
int parsed;
int imported;
int preserveDoc;
xmlSchemaItemListPtr globals;
xmlSchemaItemListPtr locals;
/* The imported schema. */
xmlSchemaPtr schema;
};
/*
* (extends xmlSchemaBucket)
*/
typedef struct _xmlSchemaInclude xmlSchemaInclude;
typedef xmlSchemaInclude *xmlSchemaIncludePtr;
struct _xmlSchemaInclude {
int type;
int flags;
const xmlChar *schemaLocation;
const xmlChar *origTargetNamespace;
const xmlChar *targetNamespace;
xmlDocPtr doc;
xmlSchemaSchemaRelationPtr relations;
int located;
int parsed;
int imported;
int preserveDoc;
xmlSchemaItemListPtr globals; /* Global components. */
xmlSchemaItemListPtr locals; /* Local components. */
/* The owning main or import schema bucket. */
xmlSchemaImportPtr ownerImport;
};
/**
* The abstract base type for schema components.
*/
typedef struct _xmlSchemaBasicItem xmlSchemaBasicItem;
typedef xmlSchemaBasicItem *xmlSchemaBasicItemPtr;
struct _xmlSchemaBasicItem {
xmlSchemaTypeType type;
void *dummy; /* Fix alignment issues */
};
/**
* The abstract base type for annotated schema components.
* (Extends xmlSchemaBasicItem)
*/
typedef struct _xmlSchemaAnnotItem xmlSchemaAnnotItem;
typedef xmlSchemaAnnotItem *xmlSchemaAnnotItemPtr;
struct _xmlSchemaAnnotItem {
xmlSchemaTypeType type;
xmlSchemaAnnotPtr annot;
};
/**
* The abstract base type for tree-like structured schema components.
* (Extends xmlSchemaAnnotItem)
*/
typedef struct _xmlSchemaTreeItem xmlSchemaTreeItem;
typedef xmlSchemaTreeItem *xmlSchemaTreeItemPtr;
struct _xmlSchemaTreeItem {
xmlSchemaTypeType type;
xmlSchemaAnnotPtr annot;
xmlSchemaTreeItemPtr next;
xmlSchemaTreeItemPtr children;
};
#define XML_SCHEMA_ATTR_USE_FIXED 1<<0
/**
* The abstract base type for tree-like structured schema components.
* (Extends xmlSchemaTreeItem)
*/
typedef struct _xmlSchemaAttributeUse xmlSchemaAttributeUse;
typedef xmlSchemaAttributeUse *xmlSchemaAttributeUsePtr;
struct _xmlSchemaAttributeUse {
xmlSchemaTypeType type;
xmlSchemaAnnotPtr annot;
xmlSchemaAttributeUsePtr next; /* The next attr. use. */
/*
* The attr. decl. OR a QName-ref. to an attr. decl. OR
* a QName-ref. to an attribute group definition.
*/
xmlSchemaAttributePtr attrDecl;
int flags;
xmlNodePtr node;
int occurs; /* required, optional */
const xmlChar * defValue;
xmlSchemaValPtr defVal;
};
/**
* A helper component to reflect attribute prohibitions.
* (Extends xmlSchemaBasicItem)
*/
typedef struct _xmlSchemaAttributeUseProhib xmlSchemaAttributeUseProhib;
typedef xmlSchemaAttributeUseProhib *xmlSchemaAttributeUseProhibPtr;
struct _xmlSchemaAttributeUseProhib {
xmlSchemaTypeType type; /* == XML_SCHEMA_EXTRA_ATTR_USE_PROHIB */
xmlNodePtr node;
const xmlChar *name;
const xmlChar *targetNamespace;
int isRef;
};
/**
*/
typedef struct _xmlSchemaRedef xmlSchemaRedef;
typedef xmlSchemaRedef *xmlSchemaRedefPtr;
struct _xmlSchemaRedef {
xmlSchemaRedefPtr next;
xmlSchemaBasicItemPtr item; /* The redefining component. */
xmlSchemaBasicItemPtr reference; /* The referencing component. */
xmlSchemaBasicItemPtr target; /* The to-be-redefined component. */
const xmlChar *refName; /* The name of the to-be-redefined component. */
const xmlChar *refTargetNs; /* The target namespace of the
to-be-redefined comp. */
xmlSchemaBucketPtr targetBucket; /* The redefined schema. */
};
/**
*/
typedef struct _xmlSchemaConstructionCtxt xmlSchemaConstructionCtxt;
typedef xmlSchemaConstructionCtxt *xmlSchemaConstructionCtxtPtr;
struct _xmlSchemaConstructionCtxt {
xmlSchemaPtr mainSchema; /* The main schema. */
xmlSchemaBucketPtr mainBucket; /* The main schema bucket */
xmlDictPtr dict;
xmlSchemaItemListPtr buckets; /* List of schema buckets. */
/* xmlSchemaItemListPtr relations; */ /* List of schema relations. */
xmlSchemaBucketPtr bucket; /* The current schema bucket */
xmlSchemaItemListPtr pending; /* All Components of all schemas that
need to be fixed. */
xmlHashTablePtr substGroups;
xmlSchemaRedefPtr redefs;
xmlSchemaRedefPtr lastRedef;
};
#define XML_SCHEMAS_PARSE_ERROR 1
#define SCHEMAS_PARSE_OPTIONS XML_PARSE_NOENT
struct _xmlSchemaParserCtxt {
int type;
void *errCtxt; /* user specific error context */
xmlSchemaValidityErrorFunc error; /* the callback in case of errors */
xmlSchemaValidityWarningFunc warning; /* the callback in case of warning */
int err;
int nberrors;
xmlStructuredErrorFunc serror;
xmlSchemaConstructionCtxtPtr constructor;
int ownsConstructor; /* TODO: Move this to parser *flags*. */
/* xmlSchemaPtr topschema; */
/* xmlHashTablePtr namespaces; */
xmlSchemaPtr schema; /* The main schema in use */
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; /* dictionary for interned string names */
xmlSchemaTypePtr ctxtType; /* The current context simple/complex type */
int options;
xmlSchemaValidCtxtPtr vctxt;
int isS4S;
int isRedefine;
int xsiAssemble;
int stop; /* If the parser should stop; i.e. a critical error. */
const xmlChar *targetNamespace;
xmlSchemaBucketPtr redefined; /* The schema to be redefined. */
xmlSchemaRedefPtr redef; /* Used for redefinitions. */
int redefCounter; /* Used for redefinitions. */
xmlSchemaItemListPtr attrProhibs;
xmlResourceLoader resourceLoader;
void *resourceCtxt;
};
/**
* A component reference item (not a schema component)
* (Extends xmlSchemaBasicItem)
*/
typedef struct _xmlSchemaQNameRef xmlSchemaQNameRef;
typedef xmlSchemaQNameRef *xmlSchemaQNameRefPtr;
struct _xmlSchemaQNameRef {
xmlSchemaTypeType type;
xmlSchemaBasicItemPtr item; /* The resolved referenced item. */
xmlSchemaTypeType itemType;
const xmlChar *name;
const xmlChar *targetNamespace;
xmlNodePtr node;
};
/**
* A particle component.
* (Extends xmlSchemaTreeItem)
*/
typedef struct _xmlSchemaParticle xmlSchemaParticle;
typedef xmlSchemaParticle *xmlSchemaParticlePtr;
struct _xmlSchemaParticle {
xmlSchemaTypeType type;
xmlSchemaAnnotPtr annot;
xmlSchemaTreeItemPtr next; /* next particle */
xmlSchemaTreeItemPtr children; /* the "term" (e.g. a model group,
a group definition, a XML_SCHEMA_EXTRA_QNAMEREF (if a reference),
etc.) */
int minOccurs;
int maxOccurs;
xmlNodePtr node;
};
/**
* A model group component.
* (Extends xmlSchemaTreeItem)
*/
typedef struct _xmlSchemaModelGroup xmlSchemaModelGroup;
typedef xmlSchemaModelGroup *xmlSchemaModelGroupPtr;
struct _xmlSchemaModelGroup {
xmlSchemaTypeType type; /* XML_SCHEMA_TYPE_SEQUENCE, XML_SCHEMA_TYPE_CHOICE, XML_SCHEMA_TYPE_ALL */
xmlSchemaAnnotPtr annot;
xmlSchemaTreeItemPtr next; /* not used */
xmlSchemaTreeItemPtr children; /* first particle (OR "element decl" OR "wildcard") */
xmlNodePtr node;
};
#define XML_SCHEMA_MODEL_GROUP_DEF_MARKED 1<<0
#define XML_SCHEMA_MODEL_GROUP_DEF_REDEFINED 1<<1
/**
* A model group definition component.
* (Extends xmlSchemaTreeItem)
*/
typedef struct _xmlSchemaModelGroupDef xmlSchemaModelGroupDef;
typedef xmlSchemaModelGroupDef *xmlSchemaModelGroupDefPtr;
struct _xmlSchemaModelGroupDef {
xmlSchemaTypeType type; /* XML_SCHEMA_TYPE_GROUP */
xmlSchemaAnnotPtr annot;
xmlSchemaTreeItemPtr next; /* not used */
xmlSchemaTreeItemPtr children; /* the "model group" */
const xmlChar *name;
const xmlChar *targetNamespace;
xmlNodePtr node;
int flags;
};
typedef struct _xmlSchemaIDC xmlSchemaIDC;
typedef xmlSchemaIDC *xmlSchemaIDCPtr;
/**
* The identity-constraint "field" and "selector" item, holding the
* XPath expression.
*/
typedef struct _xmlSchemaIDCSelect xmlSchemaIDCSelect;
typedef xmlSchemaIDCSelect *xmlSchemaIDCSelectPtr;
struct _xmlSchemaIDCSelect {
xmlSchemaIDCSelectPtr next;
xmlSchemaIDCPtr idc;
int index; /* an index position if significant for IDC key-sequences */
const xmlChar *xpath; /* the XPath expression */
void *xpathComp; /* the compiled XPath expression */
};
/**
* The identity-constraint definition component.
* (Extends xmlSchemaAnnotItem)
*/
struct _xmlSchemaIDC {
xmlSchemaTypeType type;
xmlSchemaAnnotPtr annot;
xmlSchemaIDCPtr next;
xmlNodePtr node;
const xmlChar *name;
const xmlChar *targetNamespace;
xmlSchemaIDCSelectPtr selector;
xmlSchemaIDCSelectPtr fields;
int nbFields;
xmlSchemaQNameRefPtr ref;
};
/**
* The augmented IDC information used for validation.
*/
typedef struct _xmlSchemaIDCAug xmlSchemaIDCAug;
typedef xmlSchemaIDCAug *xmlSchemaIDCAugPtr;
struct _xmlSchemaIDCAug {
xmlSchemaIDCAugPtr next; /* next in a list */
xmlSchemaIDCPtr def; /* the IDC definition */
int keyrefDepth; /* the lowest tree level to which IDC
tables need to be bubbled upwards */
};
/**
* The key sequence of a node table item.
*/
typedef struct _xmlSchemaPSVIIDCKey xmlSchemaPSVIIDCKey;
typedef xmlSchemaPSVIIDCKey *xmlSchemaPSVIIDCKeyPtr;
struct _xmlSchemaPSVIIDCKey {
xmlSchemaTypePtr type;
xmlSchemaValPtr val;
};
/**
* The node table item of a node table.
*/
typedef struct _xmlSchemaPSVIIDCNode xmlSchemaPSVIIDCNode;
typedef xmlSchemaPSVIIDCNode *xmlSchemaPSVIIDCNodePtr;
struct _xmlSchemaPSVIIDCNode {
xmlNodePtr node;
xmlSchemaPSVIIDCKeyPtr *keys;
int nodeLine;
int nodeQNameID;
};
/**
* The identity-constraint binding item of the [identity-constraint table].
*/
typedef struct _xmlSchemaPSVIIDCBinding xmlSchemaPSVIIDCBinding;
typedef xmlSchemaPSVIIDCBinding *xmlSchemaPSVIIDCBindingPtr;
struct _xmlSchemaPSVIIDCBinding {
xmlSchemaPSVIIDCBindingPtr next; /* next binding of a specific node */
xmlSchemaIDCPtr definition; /* the IDC definition */
xmlSchemaPSVIIDCNodePtr *nodeTable; /* array of key-sequences */
int nbNodes; /* number of entries in the node table */
int sizeNodes; /* size of the node table */
xmlSchemaItemListPtr dupls;
};
#define XPATH_STATE_OBJ_TYPE_IDC_SELECTOR 1
#define XPATH_STATE_OBJ_TYPE_IDC_FIELD 2
#define XPATH_STATE_OBJ_MATCHES -2
#define XPATH_STATE_OBJ_BLOCKED -3
typedef struct _xmlSchemaIDCMatcher xmlSchemaIDCMatcher;
typedef xmlSchemaIDCMatcher *xmlSchemaIDCMatcherPtr;
/**
* The state object used to evaluate XPath expressions.
*/
typedef struct _xmlSchemaIDCStateObj xmlSchemaIDCStateObj;
typedef xmlSchemaIDCStateObj *xmlSchemaIDCStateObjPtr;
struct _xmlSchemaIDCStateObj {
int type;
xmlSchemaIDCStateObjPtr next; /* next if in a list */
int depth; /* depth of creation */
int *history; /* list of (depth, state-id) tuples */
int nbHistory;
int sizeHistory;
xmlSchemaIDCMatcherPtr matcher; /* the correspondent field/selector
matcher */
xmlSchemaIDCSelectPtr sel;
void *xpathCtxt;
};
#define IDC_MATCHER 0
/**
* Used to evaluate IDC selectors (and fields).
*/
struct _xmlSchemaIDCMatcher {
int type;
int depth; /* the tree depth at creation time */
xmlSchemaIDCMatcherPtr next; /* next in the list */
xmlSchemaIDCMatcherPtr nextCached; /* next in the cache list */
xmlSchemaIDCAugPtr aidc; /* the augmented IDC item */
int idcType;
xmlSchemaPSVIIDCKeyPtr **keySeqs; /* the key-sequences of the target
elements */
int sizeKeySeqs;
xmlSchemaItemListPtr targets; /* list of target-node
(xmlSchemaPSVIIDCNodePtr) entries */
xmlHashTablePtr htab;
};
/*
* Element info flags.
*/
#define XML_SCHEMA_NODE_INFO_FLAG_OWNED_NAMES (1<<0)
#define XML_SCHEMA_NODE_INFO_FLAG_OWNED_VALUES (1<<1)
#define XML_SCHEMA_ELEM_INFO_NILLED (1<<2)
#define XML_SCHEMA_ELEM_INFO_LOCAL_TYPE (1<<3)
#define XML_SCHEMA_NODE_INFO_VALUE_NEEDED (1<<4)
#define XML_SCHEMA_ELEM_INFO_EMPTY (1<<5)
#define XML_SCHEMA_ELEM_INFO_HAS_CONTENT (1<<6)
#define XML_SCHEMA_ELEM_INFO_HAS_ELEM_CONTENT (1<<7)
#define XML_SCHEMA_ELEM_INFO_ERR_BAD_CONTENT (1<<8)
#define XML_SCHEMA_NODE_INFO_ERR_NOT_EXPECTED (1<<9)
#define XML_SCHEMA_NODE_INFO_ERR_BAD_TYPE (1<<10)
/**
* Holds information of an element node.
*/
struct _xmlSchemaNodeInfo {
int nodeType;
xmlNodePtr node;
int nodeLine;
const xmlChar *localName;
const xmlChar *nsName;
const xmlChar *value;
xmlSchemaValPtr val; /* the pre-computed value if any */
xmlSchemaTypePtr typeDef; /* the complex/simple type definition if any */
int flags; /* combination of node info flags */
int valNeeded;
int normVal;
xmlSchemaElementPtr decl; /* the element/attribute declaration */
int depth;
xmlSchemaPSVIIDCBindingPtr idcTable; /* the table of PSVI IDC bindings
for the scope element*/
xmlSchemaIDCMatcherPtr idcMatchers; /* the IDC matchers for the scope
element */
xmlRegExecCtxtPtr regexCtxt;
const xmlChar **nsBindings; /* Namespace bindings on this element */
int nbNsBindings;
int sizeNsBindings;
int hasKeyrefs;
int appliedXPath; /* Indicates that an XPath has been applied. */
};
#define XML_SCHEMAS_ATTR_UNKNOWN 1
#define XML_SCHEMAS_ATTR_ASSESSED 2
#define XML_SCHEMAS_ATTR_PROHIBITED 3
#define XML_SCHEMAS_ATTR_ERR_MISSING 4
#define XML_SCHEMAS_ATTR_INVALID_VALUE 5
#define XML_SCHEMAS_ATTR_ERR_NO_TYPE 6
#define XML_SCHEMAS_ATTR_ERR_FIXED_VALUE 7
#define XML_SCHEMAS_ATTR_DEFAULT 8
#define XML_SCHEMAS_ATTR_VALIDATE_VALUE 9
#define XML_SCHEMAS_ATTR_ERR_WILD_STRICT_NO_DECL 10
#define XML_SCHEMAS_ATTR_HAS_ATTR_USE 11
#define XML_SCHEMAS_ATTR_HAS_ATTR_DECL 12
#define XML_SCHEMAS_ATTR_WILD_SKIP 13
#define XML_SCHEMAS_ATTR_WILD_LAX_NO_DECL 14
#define XML_SCHEMAS_ATTR_ERR_WILD_DUPLICATE_ID 15
#define XML_SCHEMAS_ATTR_ERR_WILD_AND_USE_ID 16
#define XML_SCHEMAS_ATTR_META 17
/*
* @metaType values of xmlSchemaAttrInfo.
*/
#define XML_SCHEMA_ATTR_INFO_META_XSI_TYPE 1
#define XML_SCHEMA_ATTR_INFO_META_XSI_NIL 2
#define XML_SCHEMA_ATTR_INFO_META_XSI_SCHEMA_LOC 3
#define XML_SCHEMA_ATTR_INFO_META_XSI_NO_NS_SCHEMA_LOC 4
#define XML_SCHEMA_ATTR_INFO_META_XMLNS 5
typedef struct _xmlSchemaAttrInfo xmlSchemaAttrInfo;
typedef xmlSchemaAttrInfo *xmlSchemaAttrInfoPtr;
struct _xmlSchemaAttrInfo {
int nodeType;
xmlNodePtr node;
int nodeLine;
const xmlChar *localName;
const xmlChar *nsName;
const xmlChar *value;
xmlSchemaValPtr val; /* the pre-computed value if any */
xmlSchemaTypePtr typeDef; /* the complex/simple type definition if any */
int flags; /* combination of node info flags */
xmlSchemaAttributePtr decl; /* the attribute declaration */
xmlSchemaAttributeUsePtr use; /* the attribute use */
int state;
int metaType;
const xmlChar *vcValue; /* the value constraint value */
xmlSchemaNodeInfoPtr parent;
};
#define XML_SCHEMA_VALID_CTXT_FLAG_STREAM 1
/**
* A Schemas validation context
*/
struct _xmlSchemaValidCtxt {
int type;
void *errCtxt; /* 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;
xmlParserCtxtPtr parserCtxt;
void *user_data; /* TODO: What is this for? */
char *filename;
int err;
int nberrors;
xmlNodePtr node;
xmlNodePtr cur;
/* xmlSchemaTypePtr type; */
xmlRegExecCtxtPtr regexp;
xmlSchemaValPtr value;
int valueWS;
int options;
xmlNodePtr validationRoot;
xmlSchemaParserCtxtPtr pctxt;
int xsiAssemble;
int depth;
xmlSchemaNodeInfoPtr *elemInfos; /* array of element information */
int sizeElemInfos;
xmlSchemaNodeInfoPtr inode; /* the current element information */
xmlSchemaIDCAugPtr aidcs; /* a list of augmented IDC information */
xmlSchemaIDCStateObjPtr xpathStates; /* first active state object. */
xmlSchemaIDCStateObjPtr xpathStatePool; /* first stored state object. */
xmlSchemaIDCMatcherPtr idcMatcherCache; /* Cache for IDC matcher objects. */
xmlSchemaPSVIIDCNodePtr *idcNodes; /* list of all IDC node-table entries*/
int nbIdcNodes;
int sizeIdcNodes;
xmlSchemaPSVIIDCKeyPtr *idcKeys; /* list of all IDC node-table entries */
int nbIdcKeys;
int sizeIdcKeys;
int flags;
xmlDictPtr dict;
#ifdef LIBXML_READER_ENABLED
xmlTextReaderPtr reader;
#endif
xmlSchemaAttrInfoPtr *attrInfos;
int nbAttrInfos;
int sizeAttrInfos;
int skipDepth;
xmlSchemaItemListPtr nodeQNames;
int hasKeyrefs;