/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache\@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation, and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.ibm.com . For more information
* on the Apache Software Foundation, please see
* .
*/
/*
* $Log: XMLElementDecl.hpp,v $
* Revision 1.4 2003/01/29 19:45:35 gareth
* added api for DOMTypeInfo
*
* Revision 1.3 2002/11/04 15:00:21 tng
* C++ Namespace Support.
*
* Revision 1.2 2002/08/20 16:55:33 tng
* [Bug 6251] Info during compilation.
*
* Revision 1.1.1.1 2002/02/01 22:21:51 peiyongz
* sane_include
*
* Revision 1.18 2001/08/21 16:06:10 tng
* Schema: Unique Particle Attribution Constraint Checking.
*
* Revision 1.17 2001/07/24 18:30:47 knoaman
* Added support for + extra constraint checking for complexType
*
* Revision 1.16 2001/06/21 14:25:28 knoaman
* Fix for bug 1946
*
* Revision 1.15 2001/05/11 13:25:32 tng
* Copyright update.
*
* Revision 1.14 2001/05/03 20:34:22 tng
* Schema: SchemaValidator update
*
* Revision 1.13 2001/04/19 18:16:52 tng
* Schema: SchemaValidator update, and use QName in Content Model
*
* Revision 1.12 2001/03/21 21:56:02 tng
* Schema: Add Schema Grammar, Schema Validator, and split the DTDValidator into DTDValidator, DTDScanner, and DTDGrammar.
*
* Revision 1.11 2001/03/21 19:29:29 tng
* Schema: Content Model Updates, by Pei Yong Zhang.
*
* Revision 1.10 2001/02/26 19:29:13 tng
* Schema: add virtual method getURI(), getContentSpec and setContenSpec in XMLElementDecl, and DTDElementDecl.
*
* Revision 1.9 2001/02/26 19:21:30 tng
* Schema: add parameter prefix in findElem and findAttr.
*
* Revision 1.8 2000/12/14 18:49:57 tng
* Fix API document generation warning: "Warning: end of member group without matching begin"
*
* Revision 1.7 2000/11/30 18:22:38 andyh
* reuseValidator - fix bugs (spurious errors) that occured on reuse due to
* pools already containing some items. Fixed by Tinny Ng.
*
* Revision 1.6 2000/05/11 23:11:32 andyh
* Add missing validity checks for stand-alone documents, character range
* and Well-formed parsed entities. Changes contributed by Sean MacRoibeaird
*
*
* Revision 1.5 2000/02/24 20:00:23 abagchi
* Swat for removing Log from API docs
*
* Revision 1.4 2000/02/16 19:48:56 roddey
* More documentation updates
*
* Revision 1.3 2000/02/15 01:21:30 roddey
* Some initial documentation improvements. More to come...
*
* Revision 1.2 2000/02/06 07:47:48 rahulj
* Year 2K copyright swat.
*
* Revision 1.1.1.1 1999/11/09 01:08:32 twl
* Initial checkin
*
* Revision 1.2 1999/11/08 20:44:38 rahul
* Swat for adding in Product name and CVS comment log variable.
*
*/
#if !defined(XMLELEMENTDECL_HPP)
#define XMLELEMENTDECL_HPP
#include
#include
#include
XERCES_CPP_NAMESPACE_BEGIN
class ContentSpecNode;
class XMLContentModel;
/**
* This class defines the core information of an element declaration. Each
* validator (DTD, Schema, etc...) will have its own information that it
* associations with the declaration of an element, but they must all share
* at least this core information, i.e. they must all derive from this
* class. The set of info enforced at this level is driven by the needs of
* XML 1.0 spec validation and well formedness checks.
*
* This class defines some special element id values for invalid elements
* and PCDATA elements, as well as a string for the special PCDATA element
* name. All validators must honor these special values in order to allow
* content models to work generically (i.e. to let code know when its dealing
* with invalid or PCDATA element ids without having to know what type of
* validator its messing with.)
*/
class XMLPARSER_EXPORT XMLElementDecl
{
public:
// -----------------------------------------------------------------------
// Class specific types
//
// CreateReasons
// This type is used to store how an element declaration got into
// the grammar's element pool. They are faulted in for various
// reasons.
//
// LookupOpts
// These are the values used by the attribute lookup methods.
//
// CharDataOpts
// This is used to indicate how this type of element reacts to
// character data as content.
// -----------------------------------------------------------------------
enum CreateReasons
{
NoReason
, Declared
, AttList
, InContentModel
, AsRootElem
, JustFaultIn
};
enum LookupOpts
{
AddIfNotFound
, FailIfNotFound
};
enum CharDataOpts
{
NoCharData
, SpacesOk
, AllCharData
};
// -----------------------------------------------------------------------
// Public static data
//
// fgInvalidElemId
// A value to represent an invalid element node id.
//
// fgPCDataElemId
// This is the value to use to represent a PCDATA node when an
// element id is required.
//
// fgPCDataElemName
// This is the value to use to represent a PCDATA node when an
// element name is required.
// -----------------------------------------------------------------------
static const unsigned int fgInvalidElemId;
static const unsigned int fgPCDataElemId;
static const XMLCh fgPCDataElemName[];
// -----------------------------------------------------------------------
// Destructor
// -----------------------------------------------------------------------
/** @name Destructor */
//@{
virtual ~XMLElementDecl();
//@}
// -----------------------------------------------------------------------
// The virtual element decl interface
// -----------------------------------------------------------------------
/** @name Virual ElementDecl interface */
//@{
/** Find an attribute by name or optionally fault it in.
*
* The derived class should look up the passed attribute in the list of
* of attributes for this element. If namespaces are enabled, then it
* should use the uriId/baseName pair, else it should use the qName. The
* options allow the caller to indicate whether the attribute should be
* defaulted in if not found. If it is defaulted in, then wasAdded should
* be set, else it should be cleared. If its not found and the caller does
* not want defaulting, then return a null pointer.
*
* @param qName This is the qName of the attribute, i.e. the actual
* lexical name found.
*
* @param uriId This is the id of the URI of the namespace to which
* this attribute mapped. Only valid if namespaces are
* enabled.
*
* @param baseName This is the base part of the name, i.e. after any
* prefix.
*
* @param prefix The prefix, if any, of this attribute's name. If
* this is empty, then uriID is meaningless as well.
*
* @param options Indicates the lookup options.
*
* @param wasAdded Should be set if the attribute is faulted in, else
* cleared.
*/
virtual XMLAttDef* findAttr
(
const XMLCh* const qName
, const unsigned int uriId
, const XMLCh* const baseName
, const XMLCh* const prefix
, const LookupOpts options
, bool& wasAdded
) const = 0;
/** Get a list of attributes defined for this element.
*
* The derived class should return a reference to some member object which
* implements the XMLAttDefList interface. This object gives the scanner the
* ability to look through the attributes defined for this element.
*
* It is done this way for efficiency, though of course this is not thread
* safe. The scanner guarantees that it won't ever call this method in any
* nested way, but the outside world must be careful about when it calls
* this method, and optimally never would.
*/
virtual XMLAttDefList& getAttDefList() const = 0;
/** The character data options for this element type
*
* The derived class should return an appropriate character data opts value
* which correctly represents its tolerance towards whitespace or character
* data inside of its instances. This allows the scanner to do all of the
* validation of character data.
*/
virtual CharDataOpts getCharDataOpts() const = 0;
/** Indicate whether this element type defined any attributes
*
* The derived class should return a boolean that indicates whether this
* element has any attributes defined for it or not. This is an optimization
* that allows the scanner to skip some work if no attributes exist.
*/
virtual bool hasAttDefs() const = 0;
/** Reset the flags on the attribute definitions.
*
* This method is called by the scanner at the beginning of each scan
* of a start tag, asking this element decl to reset the 'declared' flag
* of each of its attribute defs. This allows the scanner to mark each
* one as declared yet or not.
*/
virtual bool resetDefs() = 0;
/** Get a pointer to the content spec node
*
* This method will return a const pointer to the content spec node object
* of this element.
*
* @return A const pointer to the element's content spec node
*/
virtual const ContentSpecNode* getContentSpec() const = 0;
/** Get a pointer to the content spec node
*
* This method is identical to the previous one, except that it is non
* const.
*/
virtual ContentSpecNode* getContentSpec() = 0;
/** Set the content spec node object for this element type
*
* This method will adopt the based content spec node object. This is called
* by the actual validator which is parsing its DTD or Schema or whatever
* and store it on the element decl object via this method.
*
* @param toAdopt This method will adopt the passed content node spec
* object. Any previous object is destroyed.
*/
virtual void setContentSpec(ContentSpecNode* toAdopt) = 0;
/** Get a pointer to the abstract content model
*
* This method will return a const pointer to the content model object
* of this element. This class is a simple abstraction that allows an
* element to define and use multiple, specialized content model types
* internally but still allow the outside world to do simple stuff with
* them.
*
* @return A pointer to the element's content model, via the basic
* abstract content model type.
*/
virtual XMLContentModel* getContentModel() = 0;
/** Set the content model object for this element type
*
* This method will adopt the based content model object. This is called
* by the actual validator which is parsing its DTD or Schema or whatever
* a creating an element decl. It will build what it feels is the correct
* content model type object and store it on the element decl object via
* this method.
*
* @param newModelToAdopt This method will adopt the passed content model
* object. Any previous object is destroyed.
*/
virtual void setContentModel(XMLContentModel* const newModelToAdopt) = 0;
/** Geta formatted string of the content model
*
* This method is a convenience method which will create a formatted
* representation of the content model of the element. It will not always
* exactly recreate the original model, since some normalization or
* or reformatting may occur. But, it will be a technically accurate
* representation of the original content model.
*
* @return A pointer to an internal buffer which contains the formatted
* content model. The caller does not own this buffer and should
* copy it if it needs to be kept around.
*/
virtual const XMLCh* getFormattedContentModel () const = 0;
//@}
// -----------------------------------------------------------------------
// Getter methods
// -----------------------------------------------------------------------
/** @name Getter methods */
//@{
/** Get the base name of this element type.
*
* Return the base name part of the element's name. This is the
* same regardless of whether namespaces are enabled or not.
*
* @return A const pointer to the base name of the element decl.
*/
const XMLCh* getBaseName() const;
XMLCh* getBaseName();
/** Get the URI id of this element type.
*
* Return the URI Id of this element.
*
* @return The URI Id of the element decl, or the emptyNamespaceId if not applicable.
*/
unsigned int getURI() const;
/** Get the QName of this element type.
*
* Return the QName part of the element's name. This is the
* same regardless of whether namespaces are enabled or not.
*
* @return A const pointer to the QName of the element decl.
*/
const QName* getElementName() const;
QName* getElementName();
/** Get the full name of this element type.
*
* Return the full name of the element. If namespaces
* are not enabled, then this is the qName. Else it is the {uri}baseName
* form. For those validators that always require namespace processing, it
* will always be in the latter form because namespace processing will always
* be on.
*/
const XMLCh* getFullName() const;
/** Get the create reason for this element type
*
* This method returns an enumeration which indicates why this element
* declaration exists. Elements can be used before they are actually
* declared, so they will often be faulted into the pool and marked as
* to why they are there.
*
* @return An enumerated value that indicates the reason why this element
* was added to the element decl pool.
*/
CreateReasons getCreateReason() const;
/** Get the element decl pool id for this element type
*
* This method will return the element decl pool id of this element
* declaration. This uniquely identifies this element type within the
* parse event that it is declared within. This value is assigned by the
* grammar whose decl pool this object belongs to.
*
* @return The element decl id of this element declaration.
*/
unsigned int getId() const;
/**
* @return the uri part of DOM Level 3 TypeInfo
*/
virtual const XMLCh* getDOMTypeInfoUri() const = 0;
/**
* @return the name part of DOM Level 3 TypeInfo
*/
virtual const XMLCh* getDOMTypeInfoName() const = 0;
/** Indicate whether this element type has been declared yet
*
* This method returns a boolean that indicates whether this element
* has been declared yet. There are a number of reasons why an element
* declaration can be faulted in, but eventually it must be declared or
* its an error. See the CreateReasons enumeration.
*
* @return true if this element has been declared, else false.
*/
bool isDeclared() const;
/** Indicate whether this element type has been declared externally
*
* This method returns a boolean that indicates whether this element
* has been declared externally.
*
* @return true if this element has been declared externally, else false.
*/
bool isExternal() const;
//@}
// -----------------------------------------------------------------------
// Setter methods
// -----------------------------------------------------------------------
/** @name Setter methods */
//@{
/** Set the element name object for this element type
*
* This method will adopt the based content spec node object. This is called
* by the actual validator which is parsing its DTD or Schema or whatever
* and store it on the element decl object via this method.
*
* @param prefix Prefix of the element
* @param localPart Base Name of the element
* @param uriId The uriId of the element
*/
void setElementName(const XMLCh* const prefix
, const XMLCh* const localPart
, const int uriId );
/** Set the element name object for this element type
*
* This method will adopt the based content spec node object. This is called
* by the actual validator which is parsing its DTD or Schema or whatever
* and store it on the element decl object via this method.
*
* @param rawName Full Name of the element
* @param uriId The uriId of the element
*/
void setElementName(const XMLCh* const rawName
, const int uriId );
/** Set the element name object for this element type
*
* This method will adopt the based content spec node object. This is called
* by the actual validator which is parsing its DTD or Schema or whatever
* and store it on the element decl object via this method.
*
* @param elementName QName of the element
*/
void setElementName(const QName* const elementName);
/** Update the create reason for this element type.
*
* This method will update the 'create reason' field for this element
* decl object. As the validator parses its DTD, Schema, etc... it will
* encounter various references to an element declaration, which will
* cause the element declaration to either be declared or to be faulted
* into the pool in preperation for some future declaration. As it does
* so,it will update this field to indicate the current satus of the
* decl object.
*/
void setCreateReason(const CreateReasons newReason);
/** Set the element decl pool id for this element type
*
* This method will set the pool id of this element decl. This is called
* by the grammar which created this object, and will provide this
* decl object with a unique id within the parse event that created it.
*/
void setId(const unsigned int newId);
/** Set the element decl to indicate external declaration
*
*/
void setExternalElemDeclaration(const bool aValue);
//@}
// -----------------------------------------------------------------------
// Miscellaneous methods
// -----------------------------------------------------------------------
/** @name Miscellenous methods */
//@{
//@}
protected :
// -----------------------------------------------------------------------
// Hidden constructors
// -----------------------------------------------------------------------
XMLElementDecl();
private :
// -----------------------------------------------------------------------
// Unimplemented constructors and operators
// -----------------------------------------------------------------------
XMLElementDecl(const XMLElementDecl&);
void operator=(const XMLElementDecl&);
// -----------------------------------------------------------------------
// Data members
//
// fElementName
// This is the name of the element decl.
//
// fCreateReason
// We sometimes have to put an element decl object into the elem
// decl pool before the element's declaration is seen, such as when
// its used in another element's content model or an att list is
// seen for it. This flag tells us whether its been declared, and
// if not why it had to be created.
//
// fId
// The unique id of this element. This is created by the derived
// class, or more accurately the grammar that owns the objects
// of the derived types. But, since they all have to have them, we
// let them all store the id here. It is defaulted to have the
// value fgInvalidElem until explicitly set.
//
// fExternalElement
// This flag indicates whether or the element was declared externally.
// -----------------------------------------------------------------------
QName* fElementName;
CreateReasons fCreateReason;
unsigned int fId;
bool fExternalElement;
};
// ---------------------------------------------------------------------------
// XMLElementDecl: Getter methods
// ---------------------------------------------------------------------------
inline const XMLCh* XMLElementDecl::getBaseName() const
{
return fElementName->getLocalPart();
}
inline XMLCh* XMLElementDecl::getBaseName()
{
return fElementName->getLocalPart();
}
inline unsigned int XMLElementDecl::getURI() const
{
return fElementName->getURI();
}
inline const QName* XMLElementDecl::getElementName() const
{
return fElementName;
}
inline QName* XMLElementDecl::getElementName()
{
return fElementName;
}
inline const XMLCh* XMLElementDecl::getFullName() const
{
return fElementName->getRawName();
}
inline XMLElementDecl::CreateReasons XMLElementDecl::getCreateReason() const
{
return fCreateReason;
}
inline unsigned int XMLElementDecl::getId() const
{
return fId;
}
inline bool XMLElementDecl::isDeclared() const
{
return (fCreateReason == Declared);
}
inline bool XMLElementDecl::isExternal() const
{
return fExternalElement;
}
// ---------------------------------------------------------------------------
// XMLElementDecl: Setter methods
// ---------------------------------------------------------------------------
inline void
XMLElementDecl::setCreateReason(const XMLElementDecl::CreateReasons newReason)
{
fCreateReason = newReason;
}
inline void XMLElementDecl::setId(const unsigned int newId)
{
fId = newId;
}
inline void XMLElementDecl::setExternalElemDeclaration(const bool aValue)
{
fExternalElement = aValue;
}
XERCES_CPP_NAMESPACE_END
#endif