abstractdomparser.hpp

基于属性证书的访问控制源代码,由c++编写,包括openssl,xercesc等

    /** Handle and end of element event
      *
      * This method is used to indicate the end tag of an element. The
      * DOM parser pops the current element off the top of the element
      * stack, and make it the new current element.
      *
      * @param elemDecl A const reference to the object containing element
      *                 declaration information.
      * @param urlId    An id referring to the namespace prefix, if
      *                 namespaces setting is switched on.
      * @param isRoot   A flag indicating whether this element was the
      *                 root element.
      * @param elemPrefix A const pointer to a Unicode string containing
      *                 the namespace prefix for this element. Applicable
      *                 only when namespace processing is enabled.
      */
    virtual void endElement
    (
        const   XMLElementDecl& elemDecl
        , const unsigned int    urlId
        , const bool            isRoot
        , const XMLCh* const    elemPrefix
    );

    /** Handle and end of entity reference event
      *
      * This method is used to indicate that an end of an entity reference
      * was just scanned.
      *
      * @param entDecl A const reference to the object containing the
      *                entity declaration information.
      */
    virtual void endEntityReference
    (
        const   XMLEntityDecl&  entDecl
    );

    /** Handle an ignorable whitespace vent
      *
      * This method is used to report all the whitespace characters, which
      * are determined to be 'ignorable'. This distinction between characters
      * is only made, if validation is enabled.
      *
      * Any whitespace before content is ignored. If the current node is
      * already of type DOMNode::TEXT_NODE, then these whitespaces are
      * appended, otherwise a new Text node is created which stores this
      * data. Essentially all contiguous ignorable characters are collected
      * in one node.
      *
      * @param chars   A const pointer to a Unicode string representing the
      *                ignorable whitespace character data.
      * @param length  The length of the Unicode string 'chars'.
      * @param cdataSection  A flag indicating if the characters represent
      *                      content from the CDATA section.
      */
    virtual void ignorableWhitespace
    (
        const   XMLCh* const    chars
        , const unsigned int    length
        , const bool            cdataSection
    );

    /** Handle a document reset event
      *
      * This method allows the user installed Document Handler to 'reset'
      * itself, freeing all the memory resources. The scanner calls this
      * method before starting a new parse event.
      */
    virtual void resetDocument();

    /** Handle a start document event
      *
      * This method is used to report the start of the parsing process.
      */
    virtual void startDocument();

    /** Handle a start element event
      *
      * This method is used to report the start of an element. It is
      * called at the end of the element, by which time all attributes
      * specified are also parsed. A new DOM Element node is created
      * along with as many attribute nodes as required. This new element
      * is added appended as a child of the current node in the tree, and
      * then replaces it as the current node (if the isEmpty flag is false.)
      *
      * @param elemDecl A const reference to the object containing element
      *                 declaration information.
      * @param urlId    An id referring to the namespace prefix, if
      *                 namespaces setting is switched on.
      * @param elemPrefix A const pointer to a Unicode string containing
      *                 the namespace prefix for this element. Applicable
      *                 only when namespace processing is enabled.
      * @param attrList A const reference to the object containing the
      *                 list of attributes just scanned for this element.
      * @param attrCount A count of number of attributes in the list
      *                 specified by the parameter 'attrList'.
      * @param isEmpty  A flag indicating whether this is an empty element
      *                 or not. If empty, then no endElement() call will
      *                 be made.
      * @param isRoot   A flag indicating whether this element was the
      *                 root element.
      * @see DocumentHandler#startElement
      */
    virtual void startElement
    (
        const   XMLElementDecl&         elemDecl
        , const unsigned int            urlId
        , const XMLCh* const            elemPrefix
        , const RefVectorOf<XMLAttr>&   attrList
        , const unsigned int            attrCount
        , const bool                    isEmpty
        , const bool                    isRoot
    );

    /** Handle a start entity reference event
      *
      * This method is used to indicate the start of an entity reference.
      * If the expand entity reference flag is true, then a new
      * DOM Entity reference node is created.
      *
      * @param entDecl A const reference to the object containing the
      *                entity declaration information.
      */
    virtual void startEntityReference
    (
        const   XMLEntityDecl&  entDecl
    );

    /** Handle an XMLDecl event
      *
      * This method is used to report the XML decl scanned by the parser.
      * Refer to the XML specification to see the meaning of parameters.
      *
      * <b><font color="#FF0000">This method is a no-op for this DOM
      * implementation.</font></b>
      *
      * @param versionStr A const pointer to a Unicode string representing
      *                   version string value.
      * @param encodingStr A const pointer to a Unicode string representing
      *                    the encoding string value.
      * @param standaloneStr A const pointer to a Unicode string
      *                      representing the standalone string value.
      * @param actualEncStr A const pointer to a Unicode string
      *                     representing the actual encoding string
      *                     value.
      */
    virtual void XMLDecl
    (
        const   XMLCh* const    versionStr
        , const XMLCh* const    encodingStr
        , const XMLCh* const    standaloneStr
        , const XMLCh* const    actualEncStr
    );

    /** Receive notification of the name and namespace of the type that validated 
      * the element corresponding to the most recent endElement event.
      * This event will be fired immediately after the
      * endElement() event that signifies the end of the element
      * to which it applies; no other events will intervene.
      * This method is <emEXPERIMENTAL</em> and may change, disappear 
      * or become pure virtual at any time.
      *
      * This corresponds to a part of the information required by DOM Core
      * level 3's TypeInfo interface.
      *
      * @param  typeName        local name of the type that actually validated
      *                         the content of the element corresponding to the
      *                         most recent endElement() callback
      * @param  typeURI         namespace of the type that actually validated
      *                         the content of the element corresponding to the
      *                         most recent endElement() callback
      * @experimental
      */
    virtual void elementTypeInfo
    (
        const   XMLCh* const    typeName
        , const XMLCh* const    typeURI
    );
    //@}


    // -----------------------------------------------------------------------
    //  Implementation of the deprecated DocTypeHandler interface.
    // -----------------------------------------------------------------------
    /** @name Deprecated DocTypeHandler Interfaces */
    //@{
    virtual void attDef
    (
        const   DTDElementDecl&     elemDecl
        , const DTDAttDef&          attDef
        , const bool                ignoring
    );

    virtual void doctypeComment
    (
        const   XMLCh* const    comment
    );

    virtual void doctypeDecl
    (
        const   DTDElementDecl& elemDecl
        , const XMLCh* const    publicId
        , const XMLCh* const    systemId
        , const bool            hasIntSubset
        , const bool            hasExtSubset = false
    );

    virtual void doctypePI
    (
        const   XMLCh* const    target
        , const XMLCh* const    data
    );

    virtual void doctypeWhitespace
    (
        const   XMLCh* const    chars
        , const unsigned int    length
    );

    virtual void elementDecl
    (
        const   DTDElementDecl& decl
        , const bool            isIgnored
    );

    virtual void endAttList
    (
        const   DTDElementDecl& elemDecl
    );

    virtual void endIntSubset();

    virtual void endExtSubset();

    virtual void entityDecl
    (
        const   DTDEntityDecl&  entityDecl
        , const bool            isPEDecl
        , const bool            isIgnored
    );

    virtual void resetDocType();

    virtual void notationDecl
    (
        const   XMLNotationDecl&    notDecl
        , const bool                isIgnored
    );

    virtual void startAttList
    (
        const   DTDElementDecl& elemDecl
    );

    virtual void startIntSubset();

    virtual void startExtSubset();

    virtual void TextDecl
    (
        const   XMLCh* const    versionStr
        , const XMLCh* const    encodingStr
    );


    //@}


    // -----------------------------------------------------------------------
    //  Deprecated Methods
    // -----------------------------------------------------------------------
    /** @name Deprecated Methods */
    //@{
    /**
      * This method returns the state of the parser's validation
      * handling flag which controls whether validation checks
      * are enforced or not.
      *
      * @return true, if the parser is currently configured to
      *         do validation, false otherwise.
      *
      * @see #setDoValidation
      */
    bool getDoValidation() const;

    /**
      * This method allows users to enable or disable the parser's validation
      * checks.
      *
      * <p>By default, the parser does not to any validation. The default
      * value is false.</p>
      *
      * @param newState The value specifying whether the parser should
      *                 do validity checks or not against the DTD in the
      *                 input XML document.
      *
      * @see #getDoValidation
      */
    void setDoValidation(const bool newState);

    /** Get the 'expand entity references' flag.
      * DEPRECATED Use getCreateEntityReferenceNodes() instead.
      *
      * This method returns the state of the parser's expand entity
      * references flag.
      *
      * @return 'true' if the expand entity reference flag is set on
      *         the parser, 'false' otherwise.
      *
      * @see #setExpandEntityReferences
      * @see #setCreateEntityReferenceNodes
      * @see #getCreateEntityReferenceNodes
      */
    bool getExpandEntityReferences() const;

    /** Set the 'expand entity references' flag
      *
      * DEPRECATED.  USE setCreateEntityReferenceNodes instead.
      * This method allows the user to specify whether the parser should
      * expand all entity reference nodes. When the 'do expansion' flag is
      * true, the DOM tree does not have any entity reference nodes. It is
      * replaced by the sub-tree representing the replacement text of the
      * entity. When the 'do expansion' flag is false, the DOM tree
      * contains an extra entity reference node, whose children is the
      * sub tree of the replacement text.
      * <p>The default value is 'false'.
      *
      * @param expand The new state of the expand entity reference
      *               flag.
      * @see #setCreateEntityReferenceNodes
      */
    void setExpandEntityReferences(const bool expand);

    //@}

protected :
    // -----------------------------------------------------------------------
    //  Protected Constructor Methods
    // -----------------------------------------------------------------------
    /** @name Constructors */