# ## Module schemasInternals from libxml2

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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 ! ## Table of Contents
    #define XML_SCHEMAS_ANYATTR_LAX
    #define XML_SCHEMAS_ANYATTR_SKIP
    #define XML_SCHEMAS_ANYATTR_STRICT
    #define XML_SCHEMAS_ANY_LAX
    #define XML_SCHEMAS_ANY_SKIP
    #define XML_SCHEMAS_ANY_STRICT
    #define XML_SCHEMAS_ATTRGROUP_GLOBAL
    #define XML_SCHEMAS_ATTRGROUP_HAS_REFS
    #define XML_SCHEMAS_ATTRGROUP_MARKED
    #define XML_SCHEMAS_ATTRGROUP_REDEFINED
    #define XML_SCHEMAS_ATTRGROUP_WILDCARD_BUILDED
    #define XML_SCHEMAS_ATTR_FIXED
    #define XML_SCHEMAS_ATTR_GLOBAL
    #define XML_SCHEMAS_ATTR_INTERNAL_RESOLVED
    #define XML_SCHEMAS_ATTR_NSDEFAULT
    #define XML_SCHEMAS_ATTR_USE_OPTIONAL
    #define XML_SCHEMAS_ATTR_USE_PROHIBITED
    #define XML_SCHEMAS_ATTR_USE_REQUIRED
    #define XML_SCHEMAS_BLOCK_DEFAULT_EXTENSION
    #define XML_SCHEMAS_BLOCK_DEFAULT_RESTRICTION
    #define XML_SCHEMAS_BLOCK_DEFAULT_SUBSTITUTION
    #define XML_SCHEMAS_ELEM_ABSTRACT
    #define XML_SCHEMAS_ELEM_BLOCK_ABSENT
    #define XML_SCHEMAS_ELEM_BLOCK_EXTENSION
    #define XML_SCHEMAS_ELEM_BLOCK_RESTRICTION
    #define XML_SCHEMAS_ELEM_BLOCK_SUBSTITUTION
    #define XML_SCHEMAS_ELEM_CIRCULAR
    #define XML_SCHEMAS_ELEM_DEFAULT
    #define XML_SCHEMAS_ELEM_FINAL_ABSENT
    #define XML_SCHEMAS_ELEM_FINAL_EXTENSION
    #define XML_SCHEMAS_ELEM_FINAL_RESTRICTION
    #define XML_SCHEMAS_ELEM_FIXED
    #define XML_SCHEMAS_ELEM_GLOBAL
    #define XML_SCHEMAS_ELEM_INTERNAL_CHECKED
    #define XML_SCHEMAS_ELEM_INTERNAL_RESOLVED
    #define XML_SCHEMAS_ELEM_NILLABLE
    #define XML_SCHEMAS_ELEM_NSDEFAULT
    #define XML_SCHEMAS_ELEM_REF
    #define XML_SCHEMAS_ELEM_SUBST_GROUP_HEAD
    #define XML_SCHEMAS_ELEM_TOPLEVEL
    #define XML_SCHEMAS_FACET_COLLAPSE
    #define XML_SCHEMAS_FACET_PRESERVE
    #define XML_SCHEMAS_FACET_REPLACE
    #define XML_SCHEMAS_FACET_UNKNOWN
    #define XML_SCHEMAS_FINAL_DEFAULT_EXTENSION
    #define XML_SCHEMAS_FINAL_DEFAULT_LIST
    #define XML_SCHEMAS_FINAL_DEFAULT_RESTRICTION
    #define XML_SCHEMAS_FINAL_DEFAULT_UNION
    #define XML_SCHEMAS_INCLUDING_CONVERT_NS
    #define XML_SCHEMAS_QUALIF_ATTR
    #define XML_SCHEMAS_QUALIF_ELEM
    #define XML_SCHEMAS_TYPE_ABSTRACT
    #define XML_SCHEMAS_TYPE_BLOCK_DEFAULT
    #define XML_SCHEMAS_TYPE_BLOCK_EXTENSION
    #define XML_SCHEMAS_TYPE_BLOCK_RESTRICTION
    #define XML_SCHEMAS_TYPE_BUILTIN_PRIMITIVE
    #define XML_SCHEMAS_TYPE_DERIVATION_METHOD_EXTENSION
    #define XML_SCHEMAS_TYPE_DERIVATION_METHOD_RESTRICTION
    #define XML_SCHEMAS_TYPE_FACETSNEEDVALUE
    #define XML_SCHEMAS_TYPE_FINAL_DEFAULT
    #define XML_SCHEMAS_TYPE_FINAL_EXTENSION
    #define XML_SCHEMAS_TYPE_FINAL_LIST
    #define XML_SCHEMAS_TYPE_FINAL_RESTRICTION
    #define XML_SCHEMAS_TYPE_FINAL_UNION
    #define XML_SCHEMAS_TYPE_FIXUP_1
    #define XML_SCHEMAS_TYPE_GLOBAL
    #define XML_SCHEMAS_TYPE_HAS_FACETS
    #define XML_SCHEMAS_TYPE_INTERNAL_INVALID
    #define XML_SCHEMAS_TYPE_INTERNAL_RESOLVED
    #define XML_SCHEMAS_TYPE_MARKED
    #define XML_SCHEMAS_TYPE_MIXED
    #define XML_SCHEMAS_TYPE_NORMVALUENEEDED
    #define XML_SCHEMAS_TYPE_OWNED_ATTR_WILDCARD
    #define XML_SCHEMAS_TYPE_REDEFINED
    #define XML_SCHEMAS_TYPE_VARIETY_ABSENT
    #define XML_SCHEMAS_TYPE_VARIETY_ATOMIC
    #define XML_SCHEMAS_TYPE_VARIETY_LIST
    #define XML_SCHEMAS_TYPE_VARIETY_UNION
    #define XML_SCHEMAS_TYPE_WHITESPACE_COLLAPSE
    #define XML_SCHEMAS_TYPE_WHITESPACE_PRESERVE
    #define XML_SCHEMAS_TYPE_WHITESPACE_REPLACE
    #define XML_SCHEMAS_WILDCARD_COMPLETE
    Structure xmlSchemaAnnot
    struct _xmlSchemaAnnot
    Typedef xmlSchemaAnnot * xmlSchemaAnnotPtr
    Structure xmlSchemaAttribute
    struct _xmlSchemaAttribute
    Structure xmlSchemaAttributeGroup
    struct _xmlSchemaAttributeGroup
    Typedef xmlSchemaAttributeGroup * xmlSchemaAttributeGroupPtr
    Structure xmlSchemaAttributeLink
    struct _xmlSchemaAttributeLink
    Typedef xmlSchemaAttributeLink * xmlSchemaAttributeLinkPtr
    Typedef xmlSchemaAttribute * xmlSchemaAttributePtr
    Enum xmlSchemaContentType
    Structure xmlSchemaElement
    struct _xmlSchemaElement
    Typedef xmlSchemaElement * xmlSchemaElementPtr
    Structure xmlSchemaFacet
    struct _xmlSchemaFacet
    Structure xmlSchemaFacetLink
    struct _xmlSchemaFacetLink
    Typedef xmlSchemaFacetLink * xmlSchemaFacetLinkPtr
    Typedef xmlSchemaFacet * xmlSchemaFacetPtr
    Structure xmlSchemaNotation
    struct _xmlSchemaNotation
    Typedef xmlSchemaNotation * xmlSchemaNotationPtr
    Structure xmlSchemaType
    struct _xmlSchemaType
    Structure xmlSchemaTypeLink
    struct _xmlSchemaTypeLink
    Typedef xmlSchemaTypeLink * xmlSchemaTypeLinkPtr
    Typedef xmlSchemaType * xmlSchemaTypePtr
    Enum xmlSchemaTypeType
    Structure xmlSchemaVal
    struct _xmlSchemaVal
    The content of this structure is not made public by the API.
    Typedef xmlSchemaVal * xmlSchemaValPtr
    Enum xmlSchemaValType
    Structure xmlSchemaWildcard
    struct _xmlSchemaWildcard
    Structure xmlSchemaWildcardNs
    struct _xmlSchemaWildcardNs
    Typedef xmlSchemaWildcardNs * xmlSchemaWildcardNsPtr
    Typedef xmlSchemaWildcard * xmlSchemaWildcardPtr
    void	xmlSchemaFreeType		(xmlSchemaTypePtr type)
    void	xmlSchemaFreeWildcard		(xmlSchemaWildcardPtr wildcard)
## Description ### Macro: XML_SCHEMAS_ANYATTR_LAX
    #define XML_SCHEMAS_ANYATTR_LAX
Ignore validation non definition on attributes Obsolete, not used anymore. ### Macro: XML_SCHEMAS_ANYATTR_SKIP
    #define XML_SCHEMAS_ANYATTR_SKIP
Skip unknown attribute from validation Obsolete, not used anymore. ### Macro: XML_SCHEMAS_ANYATTR_STRICT
    #define XML_SCHEMAS_ANYATTR_STRICT
Apply strict validation rules on attributes Obsolete, not used anymore. ### Macro: XML_SCHEMAS_ANY_LAX
    #define XML_SCHEMAS_ANY_LAX
Used by wildcards. Validate if type found, don't worry if not found ### Macro: XML_SCHEMAS_ANY_SKIP
    #define XML_SCHEMAS_ANY_SKIP
Skip unknown attribute from validation ### Macro: XML_SCHEMAS_ANY_STRICT
    #define XML_SCHEMAS_ANY_STRICT
Used by wildcards. Apply strict validation rules ### Macro: XML_SCHEMAS_ATTRGROUP_GLOBAL
    #define XML_SCHEMAS_ATTRGROUP_GLOBAL
The attribute wildcard has been already builded. ### Macro: XML_SCHEMAS_ATTRGROUP_HAS_REFS
    #define XML_SCHEMAS_ATTRGROUP_HAS_REFS
Whether this attr. group contains attr. group references. ### Macro: XML_SCHEMAS_ATTRGROUP_MARKED
    #define XML_SCHEMAS_ATTRGROUP_MARKED
Marks the attr group as marked; used for circular checks. ### Macro: XML_SCHEMAS_ATTRGROUP_REDEFINED
    #define XML_SCHEMAS_ATTRGROUP_REDEFINED
The attr group was redefined. ### Macro: XML_SCHEMAS_ATTRGROUP_WILDCARD_BUILDED
    #define XML_SCHEMAS_ATTRGROUP_WILDCARD_BUILDED
The attribute wildcard has been already builded. ### Macro: XML_SCHEMAS_ATTR_FIXED
    #define XML_SCHEMAS_ATTR_FIXED
the attribute has a fixed value ### Macro: XML_SCHEMAS_ATTR_GLOBAL
    #define XML_SCHEMAS_ATTR_GLOBAL
allow elements in no namespace ### Macro: XML_SCHEMAS_ATTR_INTERNAL_RESOLVED
    #define XML_SCHEMAS_ATTR_INTERNAL_RESOLVED
this is set when the "type" and "ref" references have been resolved. ### Macro: XML_SCHEMAS_ATTR_NSDEFAULT
    #define XML_SCHEMAS_ATTR_NSDEFAULT
allow elements in no namespace ### Macro: XML_SCHEMAS_ATTR_USE_OPTIONAL
    #define XML_SCHEMAS_ATTR_USE_OPTIONAL
The attribute is optional. ### Macro: XML_SCHEMAS_ATTR_USE_PROHIBITED
    #define XML_SCHEMAS_ATTR_USE_PROHIBITED
Used by wildcards. The attribute is prohibited. ### Macro: XML_SCHEMAS_ATTR_USE_REQUIRED
    #define XML_SCHEMAS_ATTR_USE_REQUIRED
The attribute is required. ### Macro: XML_SCHEMAS_BLOCK_DEFAULT_EXTENSION
    #define XML_SCHEMAS_BLOCK_DEFAULT_EXTENSION
the schema has "extension" in the set of blockDefault. ### Macro: XML_SCHEMAS_BLOCK_DEFAULT_RESTRICTION
    #define XML_SCHEMAS_BLOCK_DEFAULT_RESTRICTION
the schema has "restriction" in the set of blockDefault. ### Macro: XML_SCHEMAS_BLOCK_DEFAULT_SUBSTITUTION
    #define XML_SCHEMAS_BLOCK_DEFAULT_SUBSTITUTION
the schema has "substitution" in the set of blockDefault. ### Macro: XML_SCHEMAS_ELEM_ABSTRACT
    #define XML_SCHEMAS_ELEM_ABSTRACT
the element is abstract ### Macro: XML_SCHEMAS_ELEM_BLOCK_ABSENT
    #define XML_SCHEMAS_ELEM_BLOCK_ABSENT
the "block" attribute is absent ### Macro: XML_SCHEMAS_ELEM_BLOCK_EXTENSION
    #define XML_SCHEMAS_ELEM_BLOCK_EXTENSION
disallowed substitutions are absent ### Macro: XML_SCHEMAS_ELEM_BLOCK_RESTRICTION
    #define XML_SCHEMAS_ELEM_BLOCK_RESTRICTION
disallowed substitutions: "restriction" ### Macro: XML_SCHEMAS_ELEM_BLOCK_SUBSTITUTION
    #define XML_SCHEMAS_ELEM_BLOCK_SUBSTITUTION
disallowed substitutions: "substituion" ### Macro: XML_SCHEMAS_ELEM_CIRCULAR
    #define XML_SCHEMAS_ELEM_CIRCULAR
a helper flag for the search of circular references. ### Macro: XML_SCHEMAS_ELEM_DEFAULT
    #define XML_SCHEMAS_ELEM_DEFAULT
the element has a default value ### Macro: XML_SCHEMAS_ELEM_FINAL_ABSENT
    #define XML_SCHEMAS_ELEM_FINAL_ABSENT
substitution group exclusions are absent ### Macro: XML_SCHEMAS_ELEM_FINAL_EXTENSION
    #define XML_SCHEMAS_ELEM_FINAL_EXTENSION
substitution group exclusions: "extension" ### Macro: XML_SCHEMAS_ELEM_FINAL_RESTRICTION
    #define XML_SCHEMAS_ELEM_FINAL_RESTRICTION
substitution group exclusions: "restriction" ### Macro: XML_SCHEMAS_ELEM_FIXED
    #define XML_SCHEMAS_ELEM_FIXED
the element has a fixed value ### Macro: XML_SCHEMAS_ELEM_GLOBAL
    #define XML_SCHEMAS_ELEM_GLOBAL
the element is global ### Macro: XML_SCHEMAS_ELEM_INTERNAL_CHECKED
    #define XML_SCHEMAS_ELEM_INTERNAL_CHECKED
this is set when the elem decl has been checked against all constraints ### Macro: XML_SCHEMAS_ELEM_INTERNAL_RESOLVED
    #define XML_SCHEMAS_ELEM_INTERNAL_RESOLVED
this is set when "type", "ref", "substitutionGroup" references have been resolved. ### Macro: XML_SCHEMAS_ELEM_NILLABLE
    #define XML_SCHEMAS_ELEM_NILLABLE
the element is nillable ### Macro: XML_SCHEMAS_ELEM_NSDEFAULT
    #define XML_SCHEMAS_ELEM_NSDEFAULT
allow elements in no namespace Obsolete, not used anymore. ### Macro: XML_SCHEMAS_ELEM_REF
    #define XML_SCHEMAS_ELEM_REF
the element is a reference to a type ### Macro: XML_SCHEMAS_ELEM_SUBST_GROUP_HEAD
    #define XML_SCHEMAS_ELEM_SUBST_GROUP_HEAD
the declaration is a substitution group head ### Macro: XML_SCHEMAS_ELEM_TOPLEVEL
    #define XML_SCHEMAS_ELEM_TOPLEVEL
the element is top level obsolete: use XML_SCHEMAS_ELEM_GLOBAL instead ### Macro: XML_SCHEMAS_FACET_COLLAPSE
    #define XML_SCHEMAS_FACET_COLLAPSE
collapse the types of the facet ### Macro: XML_SCHEMAS_FACET_PRESERVE
    #define XML_SCHEMAS_FACET_PRESERVE
preserve the type of the facet ### Macro: XML_SCHEMAS_FACET_REPLACE
    #define XML_SCHEMAS_FACET_REPLACE
replace the type of the facet ### Macro: XML_SCHEMAS_FACET_UNKNOWN
    #define XML_SCHEMAS_FACET_UNKNOWN
unknown facet handling ### Macro: XML_SCHEMAS_FINAL_DEFAULT_EXTENSION
    #define XML_SCHEMAS_FINAL_DEFAULT_EXTENSION
the schema has "extension" in the set of finalDefault. ### Macro: XML_SCHEMAS_FINAL_DEFAULT_LIST
    #define XML_SCHEMAS_FINAL_DEFAULT_LIST
the cshema has "list" in the set of finalDefault. ### Macro: XML_SCHEMAS_FINAL_DEFAULT_RESTRICTION
    #define XML_SCHEMAS_FINAL_DEFAULT_RESTRICTION
the schema has "restriction" in the set of finalDefault. ### Macro: XML_SCHEMAS_FINAL_DEFAULT_UNION
    #define XML_SCHEMAS_FINAL_DEFAULT_UNION
the schema has "union" in the set of finalDefault. ### Macro: XML_SCHEMAS_INCLUDING_CONVERT_NS
    #define XML_SCHEMAS_INCLUDING_CONVERT_NS
the schema is currently including an other schema with no target namespace. ### Macro: XML_SCHEMAS_QUALIF_ATTR
    #define XML_SCHEMAS_QUALIF_ATTR
Reflects attributeFormDefault == qualified in an XML schema document. ### Macro: XML_SCHEMAS_QUALIF_ELEM
    #define XML_SCHEMAS_QUALIF_ELEM
Reflects elementFormDefault == qualified in an XML schema document. ### Macro: XML_SCHEMAS_TYPE_ABSTRACT
    #define XML_SCHEMAS_TYPE_ABSTRACT
the simple/complexType is abstract. ### Macro: XML_SCHEMAS_TYPE_BLOCK_DEFAULT
    #define XML_SCHEMAS_TYPE_BLOCK_DEFAULT
the complexType did not specify 'block' so use the default of the <schema> item. ### Macro: XML_SCHEMAS_TYPE_BLOCK_EXTENSION
    #define XML_SCHEMAS_TYPE_BLOCK_EXTENSION
the complexType has a 'block' of "extension". ### Macro: XML_SCHEMAS_TYPE_BLOCK_RESTRICTION
    #define XML_SCHEMAS_TYPE_BLOCK_RESTRICTION
the complexType has a 'block' of "restriction". ### Macro: XML_SCHEMAS_TYPE_BUILTIN_PRIMITIVE
    #define XML_SCHEMAS_TYPE_BUILTIN_PRIMITIVE
Marks the item as a builtin primitive. ### Macro: XML_SCHEMAS_TYPE_DERIVATION_METHOD_EXTENSION
    #define XML_SCHEMAS_TYPE_DERIVATION_METHOD_EXTENSION
the simple or complex type has a derivation method of "extension". ### Macro: XML_SCHEMAS_TYPE_DERIVATION_METHOD_RESTRICTION
    #define XML_SCHEMAS_TYPE_DERIVATION_METHOD_RESTRICTION
the simple or complex type has a derivation method of "restriction". ### Macro: XML_SCHEMAS_TYPE_FACETSNEEDVALUE
    #define XML_SCHEMAS_TYPE_FACETSNEEDVALUE
indicates if the facets need a computed value ### Macro: XML_SCHEMAS_TYPE_FINAL_DEFAULT
    #define XML_SCHEMAS_TYPE_FINAL_DEFAULT
the simpleType has a final of "default". ### Macro: XML_SCHEMAS_TYPE_FINAL_EXTENSION
    #define XML_SCHEMAS_TYPE_FINAL_EXTENSION
the complexType has a final of "extension". ### Macro: XML_SCHEMAS_TYPE_FINAL_LIST
    #define XML_SCHEMAS_TYPE_FINAL_LIST
the simpleType has a final of "list". ### Macro: XML_SCHEMAS_TYPE_FINAL_RESTRICTION
    #define XML_SCHEMAS_TYPE_FINAL_RESTRICTION
the simpleType/complexType has a final of "restriction". ### Macro: XML_SCHEMAS_TYPE_FINAL_UNION
    #define XML_SCHEMAS_TYPE_FINAL_UNION
the simpleType has a final of "union". ### Macro: XML_SCHEMAS_TYPE_FIXUP_1
    #define XML_SCHEMAS_TYPE_FIXUP_1
First stage of fixup was done. ### Macro: XML_SCHEMAS_TYPE_GLOBAL
    #define XML_SCHEMAS_TYPE_GLOBAL
the type is global ### Macro: XML_SCHEMAS_TYPE_HAS_FACETS
    #define XML_SCHEMAS_TYPE_HAS_FACETS
has facets ### Macro: XML_SCHEMAS_TYPE_INTERNAL_INVALID
    #define XML_SCHEMAS_TYPE_INTERNAL_INVALID
indicates that the type is invalid ### Macro: XML_SCHEMAS_TYPE_INTERNAL_RESOLVED
    #define XML_SCHEMAS_TYPE_INTERNAL_RESOLVED
indicates that the type was typefixed ### Macro: XML_SCHEMAS_TYPE_MARKED
    #define XML_SCHEMAS_TYPE_MARKED
Marks the item as marked; used for circular checks. ### Macro: XML_SCHEMAS_TYPE_MIXED
    #define XML_SCHEMAS_TYPE_MIXED
the element content type is mixed ### Macro: XML_SCHEMAS_TYPE_NORMVALUENEEDED
    #define XML_SCHEMAS_TYPE_NORMVALUENEEDED
indicates if the facets (pattern) need a normalized value ### Macro: XML_SCHEMAS_TYPE_OWNED_ATTR_WILDCARD
    #define XML_SCHEMAS_TYPE_OWNED_ATTR_WILDCARD
the complexType owns an attribute wildcard, i.e. it can be freed by the complexType ### Macro: XML_SCHEMAS_TYPE_REDEFINED
    #define XML_SCHEMAS_TYPE_REDEFINED
The type was redefined. ### Macro: XML_SCHEMAS_TYPE_VARIETY_ABSENT
    #define XML_SCHEMAS_TYPE_VARIETY_ABSENT
the simpleType has a variety of "absent". TODO: Actually not necessary :-/, since if none of the variety flags occur then it's automatically absent. ### Macro: XML_SCHEMAS_TYPE_VARIETY_ATOMIC
    #define XML_SCHEMAS_TYPE_VARIETY_ATOMIC
the simpleType has a variety of "union". ### Macro: XML_SCHEMAS_TYPE_VARIETY_LIST
    #define XML_SCHEMAS_TYPE_VARIETY_LIST
the simpleType has a variety of "list". ### Macro: XML_SCHEMAS_TYPE_VARIETY_UNION
    #define XML_SCHEMAS_TYPE_VARIETY_UNION
the simpleType has a variety of "union". ### Macro: XML_SCHEMAS_TYPE_WHITESPACE_COLLAPSE
    #define XML_SCHEMAS_TYPE_WHITESPACE_COLLAPSE
a whitespace-facet value of "collapse" ### Macro: XML_SCHEMAS_TYPE_WHITESPACE_PRESERVE
    #define XML_SCHEMAS_TYPE_WHITESPACE_PRESERVE
a whitespace-facet value of "preserve" ### Macro: XML_SCHEMAS_TYPE_WHITESPACE_REPLACE
    #define XML_SCHEMAS_TYPE_WHITESPACE_REPLACE
a whitespace-facet value of "replace" ### Macro: XML_SCHEMAS_WILDCARD_COMPLETE
    #define XML_SCHEMAS_WILDCARD_COMPLETE
If the wildcard is complete. ### Structure xmlSchemaAnnot
    Structure xmlSchemaAnnot
    struct _xmlSchemaAnnot {
        struct _xmlSchemaAnnot *	next
        xmlNodePtr	content	: the annotation
    }
### Structure xmlSchemaAttribute
    Structure xmlSchemaAttribute
    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 constrai
        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
    }
### Structure xmlSchemaAttributeGroup
    Structure xmlSchemaAttributeGroup
    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
    }
### Structure xmlSchemaAttributeLink
    Structure xmlSchemaAttributeLink
    struct _xmlSchemaAttributeLink {
        struct _xmlSchemaAttributeLink *	next	: the next attribute link ...
        struct _xmlSchemaAttribute *	attr	: the linked attribute
    }
### Enum xmlSchemaContentType
    Enum xmlSchemaContentType {
        XML_SCHEMA_CONTENT_UNKNOWN = 0
        XML_SCHEMA_CONTENT_EMPTY = 1
        XML_SCHEMA_CONTENT_ELEMENTS = 2
        XML_SCHEMA_CONTENT_MIXED = 3
        XML_SCHEMA_CONTENT_SIMPLE = 4
        XML_SCHEMA_CONTENT_MIXED_OR_ELEMENTS = 5 : Obsolete
        XML_SCHEMA_CONTENT_BASIC = 6
        XML_SCHEMA_CONTENT_ANY = 7
    }
### Structure xmlSchemaElement
    Structure xmlSchemaElement
    struct _xmlSchemaElement {
        xmlSchemaTypeType	type	: The kind of type
        struct _xmlSchemaType *	next	: Not used?
        const xmlChar *	name
        const xmlChar *	id	: Deprecated; not used
        const xmlChar *	ref	: Deprecated; not used
        const xmlChar *	refNs	: Deprecated; not used
        xmlSchemaAnnotPtr	annot
        xmlSchemaTypePtr	subtypes	: the type definition
        xmlSchemaAttributePtr	attributes
        xmlNodePtr	node
        int	minOccurs	: Deprecated; not used
        int	maxOccurs	: Deprecated; not used
        int	flags
        const xmlChar *	targetNamespace
        const xmlChar *	namedType
        const xmlChar *	namedTypeNs
        const xmlChar *	substGroup
        const xmlChar *	substGroupNs
        const xmlChar *	scope
        const xmlChar *	value	: The original value of the value constra
        struct _xmlSchemaElement *	refDecl	: This will now be used for the substitut
        xmlRegexpPtr	contModel	: Obsolete for WXS, maybe used for RelaxN
        xmlSchemaContentType	contentType
        const xmlChar *	refPrefix	: Deprecated; not used
        xmlSchemaValPtr	defVal	: The compiled value contraint.
        void *	idcs	: The identity-constraint defs
    }
### Structure xmlSchemaFacet
    Structure xmlSchemaFacet
    struct _xmlSchemaFacet {
        xmlSchemaTypeType	type	: The kind of type
        struct _xmlSchemaFacet *	next	: the next type if in a sequence ...
        const xmlChar *	value	: The original value
        const xmlChar *	id	: Obsolete
        xmlSchemaAnnotPtr	annot
        xmlNodePtr	node
        int	fixed	: XML_SCHEMAS_FACET_PRESERVE, etc.
        int	whitespace
        xmlSchemaValPtr	val	: The compiled value
        xmlRegexpPtr	regexp	: The regex for patterns
    }
### Structure xmlSchemaFacetLink
    Structure xmlSchemaFacetLink
    struct _xmlSchemaFacetLink {
        struct _xmlSchemaFacetLink *	next	: the next facet link ...
        xmlSchemaFacetPtr	facet	: the linked facet
    }
### Structure xmlSchemaNotation
    Structure xmlSchemaNotation
    struct _xmlSchemaNotation {
        xmlSchemaTypeType	type	: The kind of type
        const xmlChar *	name
        xmlSchemaAnnotPtr	annot
        const xmlChar *	identifier
        const xmlChar *	targetNamespace
    }
### Structure xmlSchemaType
    Structure xmlSchemaType
    struct _xmlSchemaType {
        xmlSchemaTypeType	type	: The kind of type
        struct _xmlSchemaType *	next	: the next type if in a sequence ...
        const xmlChar *	name
        const xmlChar *	id	: Deprecated; not used
        const xmlChar *	ref	: Deprecated; not used
        const xmlChar *	refNs	: Deprecated; not used
        xmlSchemaAnnotPtr	annot
        xmlSchemaTypePtr	subtypes
        xmlSchemaAttributePtr	attributes	: Deprecated; not used
        xmlNodePtr	node
        int	minOccurs	: Deprecated; not used
        int	maxOccurs	: Deprecated; not used
        int	flags
        xmlSchemaContentType	contentType
        const xmlChar *	base	: Base type's local name
        const xmlChar *	baseNs	: Base type's target namespace
        xmlSchemaTypePtr	baseType	: The base type component
        xmlSchemaFacetPtr	facets	: Local facets
        struct _xmlSchemaType *	redef	: Deprecated; not used
        int	recurse	: Obsolete
        xmlSchemaAttributeLinkPtr *	attributeUses	: Deprecated; not used
        xmlSchemaWildcardPtr	attributeWildcard
        int	builtInType	: Type of built-in types.
        xmlSchemaTypeLinkPtr	memberTypes	: member-types if a union type.
        xmlSchemaFacetLinkPtr	facetSet	: All facets (incl. inherited)
        const xmlChar *	refPrefix	: Deprecated; not used
        xmlSchemaTypePtr	contentTypeDef	: Used for the simple content of complex
        xmlRegexpPtr	contModel	: Holds the automaton of the content mode
        const xmlChar *	targetNamespace
        void *	attrUses
    }
### Structure xmlSchemaTypeLink
    Structure xmlSchemaTypeLink
    struct _xmlSchemaTypeLink {
        struct _xmlSchemaTypeLink *	next	: the next type link ...
        xmlSchemaTypePtr	type	: the linked type
    }
### Enum xmlSchemaTypeType
    Enum xmlSchemaTypeType {
        XML_SCHEMA_TYPE_BASIC = 1 : A built-in datatype
        XML_SCHEMA_TYPE_ANY = 2
        XML_SCHEMA_TYPE_FACET = 3
        XML_SCHEMA_TYPE_SIMPLE = 4
        XML_SCHEMA_TYPE_COMPLEX = 5
        XML_SCHEMA_TYPE_SEQUENCE = 6
        XML_SCHEMA_TYPE_CHOICE = 7
        XML_SCHEMA_TYPE_ALL = 8
        XML_SCHEMA_TYPE_SIMPLE_CONTENT = 9
        XML_SCHEMA_TYPE_COMPLEX_CONTENT = 10
        XML_SCHEMA_TYPE_UR = 11
        XML_SCHEMA_TYPE_RESTRICTION = 12
        XML_SCHEMA_TYPE_EXTENSION = 13
        XML_SCHEMA_TYPE_ELEMENT = 14
        XML_SCHEMA_TYPE_ATTRIBUTE = 15
        XML_SCHEMA_TYPE_ATTRIBUTEGROUP = 16
        XML_SCHEMA_TYPE_GROUP = 17
        XML_SCHEMA_TYPE_NOTATION = 18
        XML_SCHEMA_TYPE_LIST = 19
        XML_SCHEMA_TYPE_UNION = 20
        XML_SCHEMA_TYPE_ANY_ATTRIBUTE = 21
        XML_SCHEMA_TYPE_IDC_UNIQUE = 22
        XML_SCHEMA_TYPE_IDC_KEY = 23
        XML_SCHEMA_TYPE_IDC_KEYREF = 24
        XML_SCHEMA_TYPE_PARTICLE = 25
        XML_SCHEMA_TYPE_ATTRIBUTE_USE = 26
        XML_SCHEMA_FACET_MININCLUSIVE = 1000
        XML_SCHEMA_FACET_MINEXCLUSIVE = 1001
        XML_SCHEMA_FACET_MAXINCLUSIVE = 1002
        XML_SCHEMA_FACET_MAXEXCLUSIVE = 1003
        XML_SCHEMA_FACET_TOTALDIGITS = 1004
        XML_SCHEMA_FACET_FRACTIONDIGITS = 1005
        XML_SCHEMA_FACET_PATTERN = 1006
        XML_SCHEMA_FACET_ENUMERATION = 1007
        XML_SCHEMA_FACET_WHITESPACE = 1008
        XML_SCHEMA_FACET_LENGTH = 1009
        XML_SCHEMA_FACET_MAXLENGTH = 1010
        XML_SCHEMA_FACET_MINLENGTH = 1011
        XML_SCHEMA_EXTRA_QNAMEREF = 2000
        XML_SCHEMA_EXTRA_ATTR_USE_PROHIB = 2001
    }
### Structure xmlSchemaVal
    Structure xmlSchemaVal
    struct _xmlSchemaVal {
    The content of this structure is not made public by the API.
    }
### Enum xmlSchemaValType
    Enum xmlSchemaValType {
        XML_SCHEMAS_UNKNOWN = 0
        XML_SCHEMAS_STRING = 1
        XML_SCHEMAS_NORMSTRING = 2
        XML_SCHEMAS_DECIMAL = 3
        XML_SCHEMAS_TIME = 4
        XML_SCHEMAS_GDAY = 5
        XML_SCHEMAS_GMONTH = 6
        XML_SCHEMAS_GMONTHDAY = 7
        XML_SCHEMAS_GYEAR = 8
        XML_SCHEMAS_GYEARMONTH = 9
        XML_SCHEMAS_DATE = 10
        XML_SCHEMAS_DATETIME = 11
        XML_SCHEMAS_DURATION = 12
        XML_SCHEMAS_FLOAT = 13
        XML_SCHEMAS_DOUBLE = 14
        XML_SCHEMAS_BOOLEAN = 15
        XML_SCHEMAS_TOKEN = 16
        XML_SCHEMAS_LANGUAGE = 17
        XML_SCHEMAS_NMTOKEN = 18
        XML_SCHEMAS_NMTOKENS = 19
        XML_SCHEMAS_NAME = 20
        XML_SCHEMAS_QNAME = 21
        XML_SCHEMAS_NCNAME = 22
        XML_SCHEMAS_ID = 23
        XML_SCHEMAS_IDREF = 24
        XML_SCHEMAS_IDREFS = 25
        XML_SCHEMAS_ENTITY = 26
        XML_SCHEMAS_ENTITIES = 27
        XML_SCHEMAS_NOTATION = 28
        XML_SCHEMAS_ANYURI = 29
        XML_SCHEMAS_INTEGER = 30
        XML_SCHEMAS_NPINTEGER = 31
        XML_SCHEMAS_NINTEGER = 32
        XML_SCHEMAS_NNINTEGER = 33
        XML_SCHEMAS_PINTEGER = 34
        XML_SCHEMAS_INT = 35
        XML_SCHEMAS_UINT = 36
        XML_SCHEMAS_LONG = 37
        XML_SCHEMAS_ULONG = 38
        XML_SCHEMAS_SHORT = 39
        XML_SCHEMAS_USHORT = 40
        XML_SCHEMAS_BYTE = 41
        XML_SCHEMAS_UBYTE = 42
        XML_SCHEMAS_HEXBINARY = 43
        XML_SCHEMAS_BASE64BINARY = 44
        XML_SCHEMAS_ANYTYPE = 45
        XML_SCHEMAS_ANYSIMPLETYPE = 46
    }
### Structure xmlSchemaWildcard
    Structure xmlSchemaWildcard
    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 ##
        xmlSchemaWildcardNsPtr	nsSet	: The list of allowed namespaces
        xmlSchemaWildcardNsPtr	negNsSet	: The negated namespace
        int	flags
    }
### Structure xmlSchemaWildcardNs
    Structure xmlSchemaWildcardNs
    struct _xmlSchemaWildcardNs {
        struct _xmlSchemaWildcardNs *	next	: the next constraint link ...
        const xmlChar *	value	: the value
    }
### Function: xmlSchemaFreeType
    void	xmlSchemaFreeType		(xmlSchemaTypePtr type)
Deallocate a Schema Type structure.
`type`: | a schema type structure
### Function: xmlSchemaFreeWildcard
    void	xmlSchemaFreeWildcard		(xmlSchemaWildcardPtr wildcard)
Deallocates a wildcard structure.
`wildcard`: | a wildcard structure
Daniel Veillard