/*

 * Summary: internal interfaces for XML Schemas

 * Description: internal interfaces for the XML Schemas handling

 *              and schema validity checking

 *		The Schemas development is a Work In Progress.

 *              Some of those interfaces are not garanteed to be API or ABI stable !

 *

 * Copy: See Copyright for the status of this software.

 *

 * Author: Daniel Veillard

 */

#ifndef __XML_SCHEMA_INTERNALS_H__

#define __XML_SCHEMA_INTERNALS_H__

#include <libxml/xmlversion.h>

#ifdef LIBXML_SCHEMAS_ENABLED

#include <libxml/xmlregexp.h>

#include <libxml/hash.h>

#include <libxml/dict.h>

#ifdef __cplusplus

extern "C" {

#endif

typedef enum {

    XML_SCHEMAS_UNKNOWN = 0,

    XML_SCHEMAS_STRING,

    XML_SCHEMAS_NORMSTRING,

    XML_SCHEMAS_DECIMAL,

    XML_SCHEMAS_TIME,

    XML_SCHEMAS_GDAY,

    XML_SCHEMAS_GMONTH,

    XML_SCHEMAS_GMONTHDAY,

    XML_SCHEMAS_GYEAR,

    XML_SCHEMAS_GYEARMONTH,

    XML_SCHEMAS_DATE,

    XML_SCHEMAS_DATETIME,

    XML_SCHEMAS_DURATION,

    XML_SCHEMAS_FLOAT,

    XML_SCHEMAS_DOUBLE,

    XML_SCHEMAS_BOOLEAN,

    XML_SCHEMAS_TOKEN,

    XML_SCHEMAS_LANGUAGE,

    XML_SCHEMAS_NMTOKEN,

    XML_SCHEMAS_NMTOKENS,

    XML_SCHEMAS_NAME,

    XML_SCHEMAS_QNAME,

    XML_SCHEMAS_NCNAME,

    XML_SCHEMAS_ID,

    XML_SCHEMAS_IDREF,

    XML_SCHEMAS_IDREFS,

    XML_SCHEMAS_ENTITY,

    XML_SCHEMAS_ENTITIES,

    XML_SCHEMAS_NOTATION,

    XML_SCHEMAS_ANYURI,

    XML_SCHEMAS_INTEGER,

    XML_SCHEMAS_NPINTEGER,

    XML_SCHEMAS_NINTEGER,

    XML_SCHEMAS_NNINTEGER,

    XML_SCHEMAS_PINTEGER,

    XML_SCHEMAS_INT,

    XML_SCHEMAS_UINT,

    XML_SCHEMAS_LONG,

    XML_SCHEMAS_ULONG,

    XML_SCHEMAS_SHORT,

    XML_SCHEMAS_USHORT,

    XML_SCHEMAS_BYTE,

    XML_SCHEMAS_UBYTE,

    XML_SCHEMAS_HEXBINARY,

    XML_SCHEMAS_BASE64BINARY,

    XML_SCHEMAS_ANYTYPE,

    XML_SCHEMAS_ANYSIMPLETYPE

} xmlSchemaValType;

/*

 * XML Schemas defines multiple type of types.

 */

typedef enum {

    XML_SCHEMA_TYPE_BASIC = 1, /* A built-in datatype */

    XML_SCHEMA_TYPE_ANY,

    XML_SCHEMA_TYPE_FACET,

    XML_SCHEMA_TYPE_SIMPLE,

    XML_SCHEMA_TYPE_COMPLEX,

    XML_SCHEMA_TYPE_SEQUENCE = 6,

    XML_SCHEMA_TYPE_CHOICE,

    XML_SCHEMA_TYPE_ALL,

    XML_SCHEMA_TYPE_SIMPLE_CONTENT,

    XML_SCHEMA_TYPE_COMPLEX_CONTENT,

    XML_SCHEMA_TYPE_UR,

    XML_SCHEMA_TYPE_RESTRICTION,

    XML_SCHEMA_TYPE_EXTENSION,

    XML_SCHEMA_TYPE_ELEMENT,

    XML_SCHEMA_TYPE_ATTRIBUTE,

    XML_SCHEMA_TYPE_ATTRIBUTEGROUP,

    XML_SCHEMA_TYPE_GROUP,

    XML_SCHEMA_TYPE_NOTATION,

    XML_SCHEMA_TYPE_LIST,

    XML_SCHEMA_TYPE_UNION,

    XML_SCHEMA_TYPE_ANY_ATTRIBUTE,

    XML_SCHEMA_TYPE_IDC_UNIQUE,

    XML_SCHEMA_TYPE_IDC_KEY,

    XML_SCHEMA_TYPE_IDC_KEYREF,

    XML_SCHEMA_TYPE_PARTICLE = 25, 

    XML_SCHEMA_TYPE_ATTRIBUTE_USE, 

    XML_SCHEMA_FACET_MININCLUSIVE = 1000,

    XML_SCHEMA_FACET_MINEXCLUSIVE,

    XML_SCHEMA_FACET_MAXINCLUSIVE,

    XML_SCHEMA_FACET_MAXEXCLUSIVE,

    XML_SCHEMA_FACET_TOTALDIGITS,

    XML_SCHEMA_FACET_FRACTIONDIGITS,

    XML_SCHEMA_FACET_PATTERN,

    XML_SCHEMA_FACET_ENUMERATION,

    XML_SCHEMA_FACET_WHITESPACE,

    XML_SCHEMA_FACET_LENGTH,

    XML_SCHEMA_FACET_MAXLENGTH,

    XML_SCHEMA_FACET_MINLENGTH,

    XML_SCHEMA_EXTRA_QNAMEREF = 2000,

    XML_SCHEMA_EXTRA_ATTR_USE_PROHIB

} xmlSchemaTypeType;

typedef enum {

    XML_SCHEMA_CONTENT_UNKNOWN = 0,

    XML_SCHEMA_CONTENT_EMPTY = 1,

    XML_SCHEMA_CONTENT_ELEMENTS,

    XML_SCHEMA_CONTENT_MIXED,

    XML_SCHEMA_CONTENT_SIMPLE,

    XML_SCHEMA_CONTENT_MIXED_OR_ELEMENTS, /* Obsolete */

    XML_SCHEMA_CONTENT_BASIC,

    XML_SCHEMA_CONTENT_ANY

} xmlSchemaContentType;

typedef struct _xmlSchemaVal xmlSchemaVal;

typedef xmlSchemaVal *xmlSchemaValPtr;

typedef struct _xmlSchemaType xmlSchemaType;

typedef xmlSchemaType *xmlSchemaTypePtr;

typedef struct _xmlSchemaFacet xmlSchemaFacet;

typedef xmlSchemaFacet *xmlSchemaFacetPtr;

/**

 * Annotation

 */

typedef struct _xmlSchemaAnnot xmlSchemaAnnot;

typedef xmlSchemaAnnot *xmlSchemaAnnotPtr;

struct _xmlSchemaAnnot {

    struct _xmlSchemaAnnot *next;

    xmlNodePtr content;         /* the annotation */

};

/**

 * XML_SCHEMAS_ANYATTR_SKIP:

 *

 * Skip unknown attribute from validation

 * Obsolete, not used anymore.

 */

#define XML_SCHEMAS_ANYATTR_SKIP        1

/**

 * XML_SCHEMAS_ANYATTR_LAX:

 *

 * Ignore validation non definition on attributes

 * Obsolete, not used anymore.

 */

#define XML_SCHEMAS_ANYATTR_LAX                2

/**

 * XML_SCHEMAS_ANYATTR_STRICT:

 *

 * Apply strict validation rules on attributes

 * Obsolete, not used anymore.

 */

#define XML_SCHEMAS_ANYATTR_STRICT        3

/**

 * XML_SCHEMAS_ANY_SKIP:

 *

 * Skip unknown attribute from validation

 */

#define XML_SCHEMAS_ANY_SKIP        1

/**

 * XML_SCHEMAS_ANY_LAX:

 *

 * Used by wildcards.

 * Validate if type found, don't worry if not found

 */

#define XML_SCHEMAS_ANY_LAX                2

/**

 * XML_SCHEMAS_ANY_STRICT:

 *

 * Used by wildcards.

 * Apply strict validation rules

 */

#define XML_SCHEMAS_ANY_STRICT        3

/**

 * XML_SCHEMAS_ATTR_USE_PROHIBITED:

 *

 * Used by wildcards.

 * The attribute is prohibited.

 */

#define XML_SCHEMAS_ATTR_USE_PROHIBITED 0

/**

 * XML_SCHEMAS_ATTR_USE_REQUIRED:

 *

 * The attribute is required.

 */

#define XML_SCHEMAS_ATTR_USE_REQUIRED 1

/**

 * XML_SCHEMAS_ATTR_USE_OPTIONAL:

 *

 * The attribute is optional.

 */

#define XML_SCHEMAS_ATTR_USE_OPTIONAL 2

/**

 * XML_SCHEMAS_ATTR_GLOBAL:

 *

 * allow elements in no namespace

 */

#define XML_SCHEMAS_ATTR_GLOBAL        1 << 0

/**

 * XML_SCHEMAS_ATTR_NSDEFAULT:

 *

 * allow elements in no namespace

 */

#define XML_SCHEMAS_ATTR_NSDEFAULT        1 << 7

/**

 * XML_SCHEMAS_ATTR_INTERNAL_RESOLVED:

 *

 * this is set when the "type" and "ref" references

 * have been resolved.

 */

#define XML_SCHEMAS_ATTR_INTERNAL_RESOLVED        1 << 8

/**

 * XML_SCHEMAS_ATTR_FIXED:

 *

 * the attribute has a fixed value

 */

#define XML_SCHEMAS_ATTR_FIXED        1 << 9

/**

 * xmlSchemaAttribute:

 * An attribute definition.

 */

typedef struct _xmlSchemaAttribute xmlSchemaAttribute;

typedef xmlSchemaAttribute *xmlSchemaAttributePtr;

struct _xmlSchemaAttribute {

    xmlSchemaTypeType type;

    struct _xmlSchemaAttribute *next; /* the next attribute (not used?) */

    const xmlChar *name; /* the name of the declaration */

    const xmlChar *id; /* Deprecated; not used */

    const xmlChar *ref; /* Deprecated; not used */

    const xmlChar *refNs; /* Deprecated; not used */

    const xmlChar *typeName; /* the local name of the type definition */

    const xmlChar *typeNs; /* the ns URI of the type definition */

    xmlSchemaAnnotPtr annot;

    xmlSchemaTypePtr base; /* Deprecated; not used */

    int occurs; /* Deprecated; not used */

    const xmlChar *defValue; /* The initial value of the value constraint */

    xmlSchemaTypePtr subtypes; /* the type definition */

    xmlNodePtr node;

    const xmlChar *targetNamespace;

    int flags;

    const xmlChar *refPrefix; /* Deprecated; not used */

    xmlSchemaValPtr defVal; /* The compiled value constraint */

    xmlSchemaAttributePtr refDecl; /* Deprecated; not used */

};

/**

 * xmlSchemaAttributeLink:

 * Used to build a list of attribute uses on complexType definitions.

 * WARNING: Deprecated; not used.

 */

typedef struct _xmlSchemaAttributeLink xmlSchemaAttributeLink;

typedef xmlSchemaAttributeLink *xmlSchemaAttributeLinkPtr;

struct _xmlSchemaAttributeLink {

    struct _xmlSchemaAttributeLink *next;/* the next attribute link ... */

    struct _xmlSchemaAttribute *attr;/* the linked attribute */

};

/**

 * XML_SCHEMAS_WILDCARD_COMPLETE:

 *

 * If the wildcard is complete.

 */

#define XML_SCHEMAS_WILDCARD_COMPLETE 1 << 0

/**

 * xmlSchemaCharValueLink:

 * Used to build a list of namespaces on wildcards.

 */

typedef struct _xmlSchemaWildcardNs xmlSchemaWildcardNs;

typedef xmlSchemaWildcardNs *xmlSchemaWildcardNsPtr;

struct _xmlSchemaWildcardNs {

    struct _xmlSchemaWildcardNs *next;/* the next constraint link ... */

    const xmlChar *value;/* the value */

};

/**

 * xmlSchemaWildcard.

 * A wildcard.

 */

typedef struct _xmlSchemaWildcard xmlSchemaWildcard;

typedef xmlSchemaWildcard *xmlSchemaWildcardPtr;

struct _xmlSchemaWildcard {

    xmlSchemaTypeType type;        /* The kind of type */

    const xmlChar *id; /* Deprecated; not used */

    xmlSchemaAnnotPtr annot;

    xmlNodePtr node;

    int minOccurs; /* Deprecated; not used */

    int maxOccurs; /* Deprecated; not used */

    int processContents;

    int any; /* Indicates if the ns constraint is of ##any */

    xmlSchemaWildcardNsPtr nsSet; /* The list of allowed namespaces */

    xmlSchemaWildcardNsPtr negNsSet; /* The negated namespace */

    int flags;

};

/**

 * XML_SCHEMAS_ATTRGROUP_WILDCARD_BUILDED:

 *

 * The attribute wildcard has been already builded.

 */

#define XML_SCHEMAS_ATTRGROUP_WILDCARD_BUILDED 1 << 0

/**

 * XML_SCHEMAS_ATTRGROUP_GLOBAL:

 *

 * The attribute wildcard has been already builded.

 */

#define XML_SCHEMAS_ATTRGROUP_GLOBAL 1 << 1

/**

 * XML_SCHEMAS_ATTRGROUP_MARKED:

 *

 * Marks the attr group as marked; used for circular checks.

 */

#define XML_SCHEMAS_ATTRGROUP_MARKED 1 << 2

/**

 * XML_SCHEMAS_ATTRGROUP_REDEFINED:

 *

 * The attr group was redefined.

 */

#define XML_SCHEMAS_ATTRGROUP_REDEFINED 1 << 3

/**

 * XML_SCHEMAS_ATTRGROUP_HAS_REFS:

 *

 * Whether this attr. group contains attr. group references.

 */

#define XML_SCHEMAS_ATTRGROUP_HAS_REFS 1 << 4

/**

 * An attribute group definition.

 *

 * xmlSchemaAttribute and xmlSchemaAttributeGroup start of structures

 * must be kept similar

 */

typedef struct _xmlSchemaAttributeGroup xmlSchemaAttributeGroup;

typedef xmlSchemaAttributeGroup *xmlSchemaAttributeGroupPtr;

struct _xmlSchemaAttributeGroup {

    xmlSchemaTypeType type;        /* The kind of type */

    struct _xmlSchemaAttribute *next;/* the next attribute if in a group ... */

    const xmlChar *name;

    const xmlChar *id;

    const xmlChar *ref; /* Deprecated; not used */

    const xmlChar *refNs; /* Deprecated; not used */

    xmlSchemaAnnotPtr annot;

    xmlSchemaAttributePtr attributes; /* Deprecated; not used */

    xmlNodePtr node;

    int flags;

    xmlSchemaWildcardPtr attributeWildcard;

    const xmlChar *refPrefix; /* Deprecated; not used */

    xmlSchemaAttributeGroupPtr refItem; /* Deprecated; not used */

    const xmlChar *targetNamespace;

    void *attrUses;

};

/**

 * xmlSchemaTypeLink:

 * Used to build a list of types (e.g. member types of

 * simpleType with variety "union").

 */

typedef struct _xmlSchemaTypeLink xmlSchemaTypeLink;

typedef xmlSchemaTypeLink *xmlSchemaTypeLinkPtr;

struct _xmlSchemaTypeLink {

    struct _xmlSchemaTypeLink *next;/* the next type link ... */

    xmlSchemaTypePtr type;/* the linked type */

};

/**

 * xmlSchemaFacetLink:

 * Used to build a list of facets.

 */

typedef struct _xmlSchemaFacetLink xmlSchemaFacetLink;

typedef xmlSchemaFacetLink *xmlSchemaFacetLinkPtr;

struct _xmlSchemaFacetLink {

    struct _xmlSchemaFacetLink *next;/* the next facet link ... */

    xmlSchemaFacetPtr facet;/* the linked facet */

};

/**

 * XML_SCHEMAS_TYPE_MIXED:

 *

 * the element content type is mixed

 */

#define XML_SCHEMAS_TYPE_MIXED                1 << 0

/**

 * XML_SCHEMAS_TYPE_DERIVATION_METHOD_EXTENSION:

 *

 * the simple or complex type has a derivation method of "extension".

 */

#define XML_SCHEMAS_TYPE_DERIVATION_METHOD_EXTENSION                1 << 1

/**

 * XML_SCHEMAS_TYPE_DERIVATION_METHOD_RESTRICTION:

 *

 * the simple or complex type has a derivation method of "restriction".

 */

#define XML_SCHEMAS_TYPE_DERIVATION_METHOD_RESTRICTION                1 << 2

/**

 * XML_SCHEMAS_TYPE_GLOBAL:

 *

 * the type is global

 */

#define XML_SCHEMAS_TYPE_GLOBAL                1 << 3

/**

 * XML_SCHEMAS_TYPE_OWNED_ATTR_WILDCARD:

 *

 * the complexType owns an attribute wildcard, i.e.

 * it can be freed by the complexType

 */

#define XML_SCHEMAS_TYPE_OWNED_ATTR_WILDCARD    1 << 4 /* Obsolete. */

/**

 * XML_SCHEMAS_TYPE_VARIETY_ABSENT:

 *

 * the simpleType has a variety of "absent".

 * Actually not necessary :-/, since if

 * none of the variety flags occur then it's

 * automatically absent.

 */

#define XML_SCHEMAS_TYPE_VARIETY_ABSENT    1 << 5

/**

 * XML_SCHEMAS_TYPE_VARIETY_LIST:

 *

 * the simpleType has a variety of "list".

 */

#define XML_SCHEMAS_TYPE_VARIETY_LIST    1 << 6

/**

 * XML_SCHEMAS_TYPE_VARIETY_UNION:

 *

 * the simpleType has a variety of "union".

 */

#define XML_SCHEMAS_TYPE_VARIETY_UNION    1 << 7

/**

 * XML_SCHEMAS_TYPE_VARIETY_ATOMIC:

 *

 * the simpleType has a variety of "union".

 */

#define XML_SCHEMAS_TYPE_VARIETY_ATOMIC    1 << 8

/**

 * XML_SCHEMAS_TYPE_FINAL_EXTENSION:

 *

 * the complexType has a final of "extension".

 */

#define XML_SCHEMAS_TYPE_FINAL_EXTENSION    1 << 9

/**

 * XML_SCHEMAS_TYPE_FINAL_RESTRICTION:

 *

 * the simpleType/complexType has a final of "restriction".

 */

#define XML_SCHEMAS_TYPE_FINAL_RESTRICTION    1 << 10

/**

 * XML_SCHEMAS_TYPE_FINAL_LIST:

 *

 * the simpleType has a final of "list".

 */

#define XML_SCHEMAS_TYPE_FINAL_LIST    1 << 11

/**

 * XML_SCHEMAS_TYPE_FINAL_UNION:

 *

 * the simpleType has a final of "union".

 */

#define XML_SCHEMAS_TYPE_FINAL_UNION    1 << 12

/**

 * XML_SCHEMAS_TYPE_FINAL_DEFAULT:

 *

 * the simpleType has a final of "default".

 */

#define XML_SCHEMAS_TYPE_FINAL_DEFAULT    1 << 13

/**

 * XML_SCHEMAS_TYPE_BUILTIN_PRIMITIVE:

 *

 * Marks the item as a builtin primitive.

 */

#define XML_SCHEMAS_TYPE_BUILTIN_PRIMITIVE    1 << 14

/**

 * XML_SCHEMAS_TYPE_MARKED:

 *

 * Marks the item as marked; used for circular checks.

 */

#define XML_SCHEMAS_TYPE_MARKED        1 << 16

/**

 * XML_SCHEMAS_TYPE_BLOCK_DEFAULT:

 *

 * the complexType did not specify 'block' so use the default of the

 * <schema> item.

 */

#define XML_SCHEMAS_TYPE_BLOCK_DEFAULT    1 << 17

/**

 * XML_SCHEMAS_TYPE_BLOCK_EXTENSION:

 *

 * the complexType has a 'block' of "extension".

 */

#define XML_SCHEMAS_TYPE_BLOCK_EXTENSION    1 << 18

/**

 * XML_SCHEMAS_TYPE_BLOCK_RESTRICTION:

 *

 * the complexType has a 'block' of "restriction".

 */

#define XML_SCHEMAS_TYPE_BLOCK_RESTRICTION    1 << 19

/**

 * XML_SCHEMAS_TYPE_ABSTRACT:

 *

 * the simple/complexType is abstract.

 */

#define XML_SCHEMAS_TYPE_ABSTRACT    1 << 20

/**