AbstractDOMParser.hpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2002, 2003 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
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * 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) 2001, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: AbstractDOMParser.hpp,v 1.19 2003/05/16 21:36:59 knoaman Exp $
- *
- */
- #if !defined(ABSTRACTDOMPARSER_HPP)
- #define ABSTRACTDOMPARSER_HPP
- #include <xercesc/dom/DOMDocument.hpp>
- #include <xercesc/framework/XMLDocumentHandler.hpp>
- #include <xercesc/framework/XMLErrorReporter.hpp>
- #include <xercesc/framework/XMLEntityHandler.hpp>
- #include <xercesc/util/SecurityManager.hpp>
- #include <xercesc/util/ValueStackOf.hpp>
- #include <xercesc/validators/DTD/DocTypeHandler.hpp>
- #include <xercesc/dom/DOMDocumentType.hpp>
- #include <xercesc/validators/DTD/DTDElementDecl.hpp>
- #include <xercesc/framework/XMLBufferMgr.hpp>
- XERCES_CPP_NAMESPACE_BEGIN
- class XMLPScanToken;
- class XMLScanner;
- class XMLValidator;
- class DOMDocumentImpl;
- class DOMDocumentTypeImpl;
- class DOMElement;
- class GrammarResolver;
- /**
- * This class implements the Document Object Model (DOM) interface.
- * It is used as a base for DOM parsers (i.e. XercesDOMParser, DOMBuilder).
- */
- class PARSERS_EXPORT AbstractDOMParser :
- public XMemory
- , public XMLDocumentHandler
- , public XMLErrorReporter
- , public XMLEntityHandler
- , public DocTypeHandler
- {
- public :
- // -----------------------------------------------------------------------
- // Class types
- // -----------------------------------------------------------------------
- /** @name Public constants */
- //@{
- /** ValScheme enum used in setValidationScheme
- * Val_Never: Do not report validation errors.
- * Val_Always: The parser will always report validation errors.
- * Val_Auto: The parser will report validation errors only if a grammar is specified.
- *
- * @see #setValidationScheme
- */
- enum ValSchemes
- {
- Val_Never
- , Val_Always
- , Val_Auto
- };
- //@}
- // -----------------------------------------------------------------------
- // Constructors and Detructor
- // -----------------------------------------------------------------------
- /** @name Destructor */
- //@{
- /**
- * Destructor
- */
- virtual ~AbstractDOMParser();
- //@}
- // -----------------------------------------------------------------------
- // Utility methods
- // -----------------------------------------------------------------------
- /** @name Utility methods */
- //@{
- /** Reset the parser
- *
- * This method resets the state of the DOM driver and makes
- * it ready for a fresh parse run.
- */
- void reset();
- /** Adopt the DOM document
- *
- * This method returns the DOMDocument object representing the
- * root of the document tree.
- *
- * The caller will adopt the DOMDocument and thus is responsible to
- * call DOMDocument::release() to release the associated memory.
- * The parser will not delete it. The ownership is transferred
- * from the parser to the caller.
- *
- * @return The adopted DOMDocument object which represents the entire
- * XML document.
- */
- DOMDocument* adoptDocument();
- //@}
- // -----------------------------------------------------------------------
- // Getter methods
- // -----------------------------------------------------------------------
- /** @name Getter methods */
- //@{
- /** Get the DOM document
- *
- * This method returns the DOMDocument object representing the
- * root of the document tree. This object provides the primary
- * access to the document's data.
- *
- * The returned DOMDocument object is owned by the parser.
- *
- * @return The DOMDocument object which represents the entire
- * XML document.
- */
- DOMDocument* getDocument();
- /** Get a const reference to the validator
- *
- * This method returns a reference to the parser's installed
- * validator.
- *
- * @return A const reference to the installed validator object.
- */
- const XMLValidator& getValidator() const;
- /**
- * This method returns an enumerated value that indicates the current
- * validation scheme set on this parser.
- *
- * @return The ValSchemes value current set on this parser.
- * @see #setValidationScheme
- */
- ValSchemes getValidationScheme() const;
- /** Get the 'do schema' flag
- *
- * This method returns the state of the parser's schema processing
- * flag.
- *
- * @return true, if the parser is currently configured to
- * understand schema, false otherwise.
- *
- * @see #setDoSchema
- */
- bool getDoSchema() const;
- /** Get the 'full schema constraint checking' flag
- *
- * This method returns the state of the parser's full schema constraint
- * checking flag.
- *
- * @return true, if the parser is currently configured to
- * have full schema constraint checking, false otherwise.
- *
- * @see #setValidationSchemaFullChecking
- */
- bool getValidationSchemaFullChecking() const;
- /** Get error count from the last parse operation.
- *
- * This method returns the error count from the last parse
- * operation. Note that this count is actually stored in the
- * scanner, so this method simply returns what the
- * scanner reports.
- *
- * @return number of errors encountered during the latest
- * parse operation.
- *
- */
- int getErrorCount() const;
- /** Get the 'do namespaces' flag
- *
- * This method returns the state of the parser's namespace processing
- * flag.
- *
- * @return true, if the parser is currently configured to
- * understand namespaces, false otherwise.
- *
- * @see #setDoNamespaces
- */
- bool getDoNamespaces() const;
- /** Get the 'exit on first error' flag
- *
- * This method returns the state of the parser's
- * exit-on-First-Fatal-Error flag. If this flag is true, then the
- * parse will exit the first time it sees any non-wellformed XML or
- * any validity error. The default state is true.
- *
- * @return true, if the parser is currently configured to
- * exit on the first fatal error, false otherwise.
- *
- * @see #setExitOnFirstFatalError
- */
- bool getExitOnFirstFatalError() const;
- /**
- * This method returns the state of the parser's
- * validation-constraint-fatal flag.
- *
- * @return true, if the parser is currently configured to
- * set validation constraint errors as fatal, false
- * otherwise.
- *
- * @see #setValidationContraintFatal
- */
- bool getValidationConstraintFatal() const;
- /** Get the 'include entity references' flag
- *
- * This method returns the flag that specifies whether the parser is
- * creating entity reference nodes in the DOM tree being produced.
- *
- * @return The state of the create entity reference node
- * flag.
- * @see #setCreateEntityReferenceNodes
- */
- bool getCreateEntityReferenceNodes()const;
- /** Get the 'include ignorable whitespace' flag.
- *
- * This method returns the state of the parser's include ignorable
- * whitespace flag.
- *
- * @return 'true' if the include ignorable whitespace flag is set on
- * the parser, 'false' otherwise.
- *
- * @see #setIncludeIgnorableWhitespace
- */
- bool getIncludeIgnorableWhitespace() const;
- /** Get the set of Namespace/SchemaLocation that is specified externaly.
- *
- * This method returns the list of Namespace/SchemaLocation that was
- * specified using setExternalSchemaLocation.
- *
- * The parser owns the returned string, and the memory allocated for
- * the returned string will be destroyed when the parser is deleted.
- *
- * To ensure assessiblity of the returned information after the parser
- * is deleted, callers need to copy and store the returned information
- * somewhere else.
- *
- * @return a pointer to the list of Namespace/SchemaLocation that was
- * specified externally. The pointer spans the same life-time as
- * the parser. A null pointer is returned if nothing
- * was specified externally.
- *
- * @see #setExternalSchemaLocation(const XMLCh* const)
- */
- XMLCh* getExternalSchemaLocation() const;
- /** Get the noNamespace SchemaLocation that is specified externaly.
- *
- * This method returns the no target namespace XML Schema Location
- * that was specified using setExternalNoNamespaceSchemaLocation.
- *
- * The parser owns the returned string, and the memory allocated for
- * the returned string will be destroyed when the parser is deleted.
- *
- * To ensure assessiblity of the returned information after the parser
- * is deleted, callers need to copy and store the returned information
- * somewhere else.
- *
- * @return a pointer to the no target namespace Schema Location that was
- * specified externally. The pointer spans the same life-time as
- * the parser. A null pointer is returned if nothing
- * was specified externally.
- *
- * @see #setExternalNoNamespaceSchemaLocation(const XMLCh* const)
- */
- XMLCh* getExternalNoNamespaceSchemaLocation() const;
- /** Get the SecurityManager instance attached to this parser.
- *
- * This method returns the security manager
- * that was specified using setSecurityManager.
- *
- * The SecurityManager instance must have been specified by the application;
- * this should not be deleted until after the parser has been deleted (or
- * a new SecurityManager instance has been supplied to the parser).
- *
- * @return a pointer to the SecurityManager instance
- * specified externally. A null pointer is returned if nothing
- * was specified externally.
- *
- * @see #setSecurityManager(const SecurityManager* const)
- */
- SecurityManager* getSecurityManager() const;
- /** Get the 'Loading External DTD' flag
- *
- * This method returns the state of the parser's loading external DTD
- * flag.
- *
- * @return false, if the parser is currently configured to
- * ignore external DTD completely, true otherwise.
- *
- * @see #setLoadExternalDTD
- * @see #getValidationScheme
- */
- bool getLoadExternalDTD() const;
- /** Get the 'create comment node' flag
- *
- * This method returns the flag that specifies whether the parser is
- * creating comment nodes in the DOM tree being produced.
- *
- * @return The state of the create comment node flag.
- * @see #setCreateCommentNodes
- */
- bool getCreateCommentNodes()const;
- /**
- * Get the 'calculate src offset flag'
- *
- * This method returns the state of the parser's src offset calculation
- * when parsing an XML document.
- *
- * @return true, if the parser is currently configured to
- * calculate src offsets, false otherwise.
- *
- * @see #setCalculateSrcOfs
- */
- bool getCalculateSrcOfs() const;
- /**
- * Get the 'force standard uri flag'
- *
- * This method returns the state if the parser forces standard uri
- *
- * @return true, if the parser is currently configured to
- * force standard uri, i.e. malformed uri will be rejected.
- *
- * @see #setStandardUriConformant
- */
- bool getStandardUriConformant() const;
- //@}
- // -----------------------------------------------------------------------
- // Setter methods
- // -----------------------------------------------------------------------
- /** @name Setter methods */
- //@{
- /** Set the 'do namespaces' flag
- *
- * This method allows users to enable or disable the parser's
- * namespace processing. When set to true, parser starts enforcing
- * all the constraints and rules specified by the NameSpace
- * specification.
- *
- * The parser's default state is: false.
- *
- * @param newState The value specifying whether NameSpace rules should
- * be enforced or not.
- *
- * @see #getDoNamespaces
- */
- void setDoNamespaces(const bool newState);
- /** Set the 'exit on first error' flag
- *
- * This method allows users to set the parser's behaviour when it
- * encounters the first fatal error. If set to true, the parser
- * will exit at the first fatal error. If false, then it will
- * report the error and continue processing.
- *
- * The default value is 'true' and the parser exits on the
- * first fatal error.
- *
- * @param newState The value specifying whether the parser should
- * continue or exit when it encounters the first
- * fatal error.
- *
- * @see #getExitOnFirstFatalError
- */
- void setExitOnFirstFatalError(const bool newState);
- /**
- * This method allows users to set the parser's behaviour when it
- * encounters a validtion constraint error. If set to true, and the
- * the parser will treat validation error as fatal and will exit depends on the
- * state of "getExitOnFirstFatalError". If false, then it will
- * report the error and continue processing.
- *
- * Note: setting this true does not mean the validation error will be printed with
- * the word "Fatal Error". It is still printed as "Error", but the parser
- * will exit if "setExitOnFirstFatalError" is set to true.
- *
- * <p>The default value is 'false'.</p>
- *
- * @param newState If true, the parser will exit if "setExitOnFirstFatalError"
- * is set to true.
- *
- * @see #getValidationConstraintFatal
- * @see #setExitOnFirstFatalError
- */
- void setValidationConstraintFatal(const bool newState);
- /** Set the 'include entity references' flag
- *
- * This method allows the user to specify whether the parser should
- * create entity reference nodes in the DOM tree being produced.
- * When the 'create' flag is
- * true, the parser will create EntityReference nodes in the DOM tree.
- * The EntityReference nodes and their child nodes will be read-only.
- * When the 'create' flag is false, no EntityReference nodes will be created.
- * <p>The replacement text
- * of the entity is included in either case, either as a
- * child of the Entity Reference node or in place at the location
- * of the reference.
- * <p>The default value is 'true'.
- *
- * @param create The new state of the create entity reference nodes
- * flag.
- * @see #getCreateEntityReferenceNodes
- */
- void setCreateEntityReferenceNodes(const bool create);
- /** Set the 'include ignorable whitespace' flag
- *
- * This method allows the user to specify whether a validating parser
- * should include ignorable whitespaces as text nodes. It has no effect
- * on non-validating parsers which always include non-markup text.
- * <p>When set to true (also the default), ignorable whitespaces will be
- * added to the DOM tree as text nodes. The method
- * DOMText::isIgnorableWhitespace() will return true for those text
- * nodes only.
- * <p>When set to false, all ignorable whitespace will be discarded and
- * no text node is added to the DOM tree. Note: applications intended
- * to process the "xml:space" attribute should not set this flag to false.
- * And this flag also overrides any schema datateye whitespace facets,
- * that is, all ignorable whitespace will be discarded even though
- * 'preserve' is set in schema datatype whitespace facets.
- *
- * @param include The new state of the include ignorable whitespace
- * flag.
- *
- * @see #getIncludeIgnorableWhitespace
- */
- void setIncludeIgnorableWhitespace(const bool include);
- /**
- * This method allows users to set the validation scheme to be used
- * by this parser. The value is one of the ValSchemes enumerated values
- * defined by this class:
- *
- * <br> Val_Never - turn off validation
- * <br> Val_Always - turn on validation
- * <br> Val_Auto - turn on validation if any internal/external
- * DTD subset have been seen
- *
- * <p>The parser's default state is: Val_Auto.</p>
- *
- * @param newScheme The new validation scheme to use.
- *
- * @see #getValidationScheme
- */
- void setValidationScheme(const ValSchemes newScheme);
- /** Set the 'do schema' flag
- *
- * This method allows users to enable or disable the parser's
- * schema processing. When set to false, parser will not process
- * any schema found.
- *
- * The parser's default state is: false.
- *
- * Note: If set to true, namespace processing must also be turned on.
- *
- * @param newState The value specifying whether schema support should
- * be enforced or not.
- *
- * @see #getDoSchema
- */
- void setDoSchema(const bool newState);
- /**
- * This method allows the user to turn full Schema constraint checking on/off.
- * Only takes effect if Schema validation is enabled.
- * If turned off, partial constraint checking is done.
- *
- * Full schema constraint checking includes those checking that may
- * be time-consuming or memory intensive. Currently, particle unique
- * attribution constraint checking and particle derivation resriction checking
- * are controlled by this option.
- *
- * The parser's default state is: false.
- *
- * @param schemaFullChecking True to turn on full schema constraint checking.
- *
- * @see #getValidationSchemaFullChecking
- */
- void setValidationSchemaFullChecking(const bool schemaFullChecking);
- /**
- * This method allows the user to specify a list of schemas to use.
- * If the targetNamespace of a schema specified using this method matches
- * the targetNamespace of a schema occuring in the instance document in
- * the schemaLocation attribute, or if the targetNamespace matches the
- * namespace attribute of the "import" element, the schema specified by the
- * user using this method will be used (i.e., the schemaLocation attribute
- * in the instance document or on the "import" element will be effectively ignored).
- *
- * If this method is called more than once, only the last one takes effect.
- *
- * The syntax is the same as for schemaLocation attributes in instance
- * documents: e.g, "http://www.example.com file_name.xsd". The user can
- * specify more than one XML Schema in the list.
- *
- * @param schemaLocation the list of schemas to use
- *
- * @see #getExternalSchemaLocation
- */
- void setExternalSchemaLocation(const XMLCh* const schemaLocation);
- /**
- * This method is same as setExternalSchemaLocation(const XMLCh* const).
- * It takes native char string as parameter
- *
- * @param schemaLocation the list of schemas to use
- *
- * @see #setExternalSchemaLocation(const XMLCh* const)
- */
- void setExternalSchemaLocation(const char* const schemaLocation);
- /**
- * This method allows the user to specify the no target namespace XML
- * Schema Location externally. If specified, the instance document's
- * noNamespaceSchemaLocation attribute will be effectively ignored.
- *
- * If this method is called more than once, only the last one takes effect.
- *
- * The syntax is the same as for the noNamespaceSchemaLocation attribute
- * that may occur in an instance document: e.g."file_name.xsd".
- *
- * @param noNamespaceSchemaLocation the XML Schema Location with no target namespace
- *
- * @see #getExternalNoNamespaceSchemaLocation
- */
- void setExternalNoNamespaceSchemaLocation(const XMLCh* const noNamespaceSchemaLocation);
- /**
- * This method is same as setExternalNoNamespaceSchemaLocation(const XMLCh* const).
- * It takes native char string as parameter
- *
- * @param noNamespaceSchemaLocation the XML Schema Location with no target namespace
- *
- * @see #setExternalNoNamespaceSchemaLocation(const XMLCh* const)
- */
- void setExternalNoNamespaceSchemaLocation(const char* const noNamespaceSchemaLocation);
- /**
- * This allows an application to set a SecurityManager on
- * the parser; this object stores information that various
- * components use to limit their consumption of system
- * resources while processing documents.
- *
- * If this method is called more than once, only the last one takes effect.
- * It may not be reset during a parse.
- *
- *
- * @param securityManager the SecurityManager instance to
- * be used by this parser
- *
- * @see #getSecurityManager
- */
- void setSecurityManager(SecurityManager* const securityManager);
- /** Set the 'Loading External DTD' flag
- *
- * This method allows users to enable or disable the loading of external DTD.
- * When set to false, the parser will ignore any external DTD completely
- * if the validationScheme is set to Val_Never.
- *
- * The parser's default state is: true.
- *
- * This flag is ignored if the validationScheme is set to Val_Always or Val_Auto.
- *
- * @param newState The value specifying whether external DTD should
- * be loaded or not.
- *
- * @see #getLoadExternalDTD
- * @see #setValidationScheme
- */
- void setLoadExternalDTD(const bool newState);
- /** Set the 'create comment nodes' flag
- *
- * This method allows the user to specify whether the parser should
- * create comment nodes in the DOM tree being produced.
- * <p>The default value is 'true'.
- *
- * @param create The new state of the create comment nodes
- * flag.
- * @see #getCreateCommentNodes
- */
- void setCreateCommentNodes(const bool create);
- /** Enable/disable src offset calculation
- *
- * This method allows users to enable/disable src offset calculation.
- * Disabling the calculation will improve performance.
- *
- * The parser's default state is: false.
- *
- * @param newState The value specifying whether we should enable or
- * disable src offset calculation
- *
- * @see #getCalculateSrcOfs
- */
- void setCalculateSrcOfs(const bool newState);
- /** Force standard uri
- *
- * This method allows users to tell the parser to force standard uri conformance.
- *
- * The parser's default state is: false.
- *
- * @param newState The value specifying whether the parser should reject malformed URI.
- *
- * @see #getStandardUriConformant
- */
- void setStandardUriConformant(const bool newState);
- /** Set the scanner to use when scanning the XML document
- *
- * This method allows users to set the the scanner to use
- * when scanning a given XML document.
- *
- * @param scannerName The name of the desired scanner
- */
- void useScanner(const XMLCh* const scannerName);
- //@}
- // -----------------------------------------------------------------------
- // Parsing methods
- // -----------------------------------------------------------------------
- /** @name Parsing methods */
- //@{
- /** Parse via an input source object
- *
- * This method invokes the parsing process on the XML file specified
- * by the InputSource parameter. This API is borrowed from the
- * SAX Parser interface.
- *
- * @param source A const reference to the InputSource object which
- * points to the XML file to be parsed.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @exception XMLException An exception from the parser or client
- * handler code.
- * @exception DOMException A DOM exception as per DOM spec.
- * @see InputSource#InputSource
- */
- void parse(const InputSource& source);
- /** Parse via a file path or URL
- *
- * This method invokes the parsing process on the XML file specified by
- * the Unicode string parameter 'systemId'. This method is borrowed
- * from the SAX Parser interface.
- *
- * @param systemId A const XMLCh pointer to the Unicode string which
- * contains the path to the XML file to be parsed.
- *
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @exception XMLException An exception from the parser or client
- * handler code.
- * @exception DOMException A DOM exception as per DOM spec.
- * @see #parse(InputSource,...)
- */
- void parse(const XMLCh* const systemId);
- /** Parse via a file path or URL (in the local code page)
- *
- * This method invokes the parsing process on the XML file specified by
- * the native char* string parameter 'systemId'.
- *
- * @param systemId A const char pointer to a native string which
- * contains the path to the XML file to be parsed.
- *
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @exception XMLException An exception from the parser or client
- * handler code.
- * @exception DOMException A DOM exception as per DOM spec.
- * @see #parse(InputSource,...)
- */
- void parse(const char* const systemId);
- /** Begin a progressive parse operation
- *
- * This method is used to start a progressive parse on a XML file.
- * To continue parsing, subsequent calls must be to the parseNext
- * method.
- *
- * It scans through the prolog and returns a token to be used on
- * subsequent scanNext() calls. If the return value is true, then the
- * token is legal and ready for further use. If it returns false, then
- * the scan of the prolog failed and the token is not going to work on
- * subsequent scanNext() calls.
- *
- * @param systemId A pointer to a Unicode string represting the path
- * to the XML file to be parsed.
- * @param toFill A token maintaing state information to maintain
- * internal consistency between invocation of 'parseNext'
- * calls.
- * @return 'true', if successful in parsing the prolog. It indicates the
- * user can go ahead with parsing the rest of the file. It
- * returns 'false' to indicate that the parser could not parse
- * the prolog.
- *
- * @see #parseNext
- * @see #parseFirst(char*,...)
- * @see #parseFirst(InputSource&,...)
- */
- bool parseFirst
- (
- const XMLCh* const systemId
- , XMLPScanToken& toFill
- );
- /** Begin a progressive parse operation
- *
- * This method is used to start a progressive parse on a XML file.
- * To continue parsing, subsequent calls must be to the parseNext
- * method.
- *
- * It scans through the prolog and returns a token to be used on
- * subsequent scanNext() calls. If the return value is true, then the
- * token is legal and ready for further use. If it returns false, then
- * the scan of the prolog failed and the token is not going to work on
- * subsequent scanNext() calls.
- *
- * @param systemId A pointer to a regular native string represting
- * the path to the XML file to be parsed.
- * @param toFill A token maintaing state information to maintain
- * internal consistency between invocation of 'parseNext'
- * calls.
- *
- * @return 'true', if successful in parsing the prolog. It indicates the
- * user can go ahead with parsing the rest of the file. It
- * returns 'false' to indicate that the parser could not parse
- * the prolog.
- *
- * @see #parseNext
- * @see #parseFirst(XMLCh*,...)
- * @see #parseFirst(InputSource&,...)
- */
- bool parseFirst
- (
- const char* const systemId
- , XMLPScanToken& toFill
- );
- /** Begin a progressive parse operation
- *
- * This method is used to start a progressive parse on a XML file.
- * To continue parsing, subsequent calls must be to the parseNext
- * method.
- *
- * It scans through the prolog and returns a token to be used on
- * subsequent scanNext() calls. If the return value is true, then the
- * token is legal and ready for further use. If it returns false, then
- * the scan of the prolog failed and the token is not going to work on
- * subsequent scanNext() calls.
- *
- * @param source A const reference to the InputSource object which
- * points to the XML file to be parsed.
- * @param toFill A token maintaing state information to maintain
- * internal consistency between invocation of 'parseNext'
- * calls.
- *
- * @return 'true', if successful in parsing the prolog. It indicates the
- * user can go ahead with parsing the rest of the file. It
- * returns 'false' to indicate that the parser could not parse
- * the prolog.
- *
- * @see #parseNext
- * @see #parseFirst(XMLCh*,...)
- * @see #parseFirst(char*,...)
- */
- bool parseFirst
- (
- const InputSource& source
- , XMLPScanToken& toFill
- );
- /** Continue a progressive parse operation
- *
- * This method is used to continue with progressive parsing of
- * XML files started by a call to 'parseFirst' method.
- *
- * It parses the XML file and stops as soon as it comes across
- * a XML token (as defined in the XML specification).
- *
- * @param token A token maintaing state information to maintain
- * internal consistency between invocation of 'parseNext'
- * calls.
- *
- * @return 'true', if successful in parsing the next XML token.
- * It indicates the user can go ahead with parsing the rest
- * of the file. It returns 'false' to indicate that the parser
- * could not find next token as per the XML specification
- * production rule.
- *
- * @see #parseFirst(XMLCh*,...)
- * @see #parseFirst(char*,...)
- * @see #parseFirst(InputSource&,...)
- */
- bool parseNext(XMLPScanToken& token);
- /** Reset the parser after a progressive parse
- *
- * If a progressive parse loop exits before the end of the document
- * is reached, the parser has no way of knowing this. So it will leave
- * open any files or sockets or memory buffers that were in use at
- * the time that the parse loop exited.
- *
- * The next parse operation will cause these open files and such to
- * be closed, but the next parse operation might occur at some unknown
- * future point. To avoid this problem, you should reset the parser if
- * you exit the loop early.
- *
- * If you exited because of an error, then this cleanup will be done
- * for you. Its only when you exit the file prematurely of your own
- * accord, because you've found what you wanted in the file most
- * likely.
- *
- * @param token A token maintaing state information to maintain
- * internal consistency between invocation of 'parseNext'
- * calls.
- *
- * @see #parseFirst(XMLCh*,...)
- * @see #parseFirst(char*,...)
- * @see #parseFirst(InputSource&,...)
- */
- void parseReset(XMLPScanToken& token);
- //@}
- // -----------------------------------------------------------------------
- // Implementation of the XMLDocumentHandler interface.
- // -----------------------------------------------------------------------
- /** @name Implementation of the XMLDocumentHandler interface. */
- //@{
- /** Handle document character events
- *
- * This method is used to report all the characters scanned by the
- * parser. This DOM implementation stores this data in the appropriate
- * DOM node, creating one if necessary.
- *
- * @param chars A const pointer to a Unicode string representing the
- * character data.
- * @param length The length of the Unicode string returned in 'chars'.
- * @param cdataSection A flag indicating if the characters represent
- * content from the CDATA section.
- */
- virtual void docCharacters
- (
- const XMLCh* const chars
- , const unsigned int length
- , const bool cdataSection
- );
- /** Handle a document comment event
- *
- * This method is used to report any comments scanned by the parser.
- * A new comment node is created which stores this data.
- *
- * @param comment A const pointer to a null terminated Unicode
- * string representing the comment text.
- */
- virtual void docComment
- (
- const XMLCh* const comment
- );
- /** Handle a document PI event
- *
- * This method is used to report any PI scanned by the parser. A new
- * PI node is created and appended as a child of the current node in
- * the tree.
- *
- * @param target A const pointer to a Unicode string representing the
- * target of the PI declaration.
- * @param data A const pointer to a Unicode string representing the
- * data of the PI declaration. See the PI production rule
- * in the XML specification for details.
- */
- virtual void docPI
- (
- const XMLCh* const target
- , const XMLCh* const data
- );
- /** Handle the end of document event
- *
- * This method is used to indicate the end of the current document.
- */
- virtual void endDocument();
- /** 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
- );
- //@}
- // -----------------------------------------------------------------------
- // 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 */
- //@{
- /** Construct a AbstractDOMParser, with an optional validator
- *
- * Constructor with an instance of validator class to use for
- * validation. If you don't provide a validator, a default one will
- * be created for you in the scanner.
- *
- * @param valToAdopt Pointer to the validator instance to use. The
- * parser is responsible for freeing the memory.
- */
- AbstractDOMParser
- (
- XMLValidator* const valToAdopt = 0
- , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
- );
- //@}
- // -----------------------------------------------------------------------
- // Protected getter methods
- // -----------------------------------------------------------------------
- /** @name Protected getter methods */
- //@{
- /** Get the current DOM node
- *
- * This provides derived classes with access to the current node, i.e.
- * the node to which new nodes are being added.
- */
- DOMNode* getCurrentNode();
- /** Get the XML scanner
- *
- * This provides derived classes with access to the XML scanner.
- */
- XMLScanner* getScanner() const;
- /** Get the Grammar resolver
- *
- * This provides derived classes with access to the grammar resolver.
- */
- GrammarResolver* getGrammarResolver() const;
- /** Get the parse in progress flag
- *
- * This provides derived classes with access to the parse in progress
- * flag.
- */
- bool getParseInProgress() const;
- MemoryManager* getMemoryManager() const;
- //@}
- // -----------------------------------------------------------------------
- // Protected setter methods
- // -----------------------------------------------------------------------
- /** @name Protected setter methods */
- //@{
- /** Set the current DOM node
- *
- * This method sets the current node maintained inside the parser to
- * the one specified.
- *
- * @param toSet The DOM node which will be the current node.
- */
- void setCurrentNode(DOMNode* toSet);
- /** Set the document node
- *
- * This method sets the DOM Document node to the one specified.
- *
- * @param toSet The new DOM Document node for this XML document.
- */
- void setDocument(DOMDocument* toSet);
- /** Set the parse in progress flag
- *
- * This method sets the parse in progress flag to true or false.
- *
- * @param toSet The value of the flag to be set.
- */
- void setParseInProgress(const bool toSet);
- //@}
- // -----------------------------------------------------------------------
- // Protected Helper methods
- // -----------------------------------------------------------------------
- /** @name Protected helper methods */
- //@{
- virtual DOMElement* createElementNSNode(const XMLCh *fNamespaceURI,
- const XMLCh *qualifiedName);
- void resetPool();
- /**
- * Returns true if the user has adopted the document
- */
- bool isDocumentAdopted() const;
- //@}
- private :
- // -----------------------------------------------------------------------
- // Initialize/Cleanup methods
- // -----------------------------------------------------------------------
- void initialize();
- void cleanUp();
- // -----------------------------------------------------------------------
- // Private data members
- //
- // fCurrentNode
- // fCurrentParent
- // Used to track the current node during nested element events. Since
- // the tree must be built from a set of disjoint callbacks, we need
- // these to keep up with where we currently are.
- //
- // fCurrentEntity
- // Used to track the current entity decl. If a text decl is seen later on,
- // it is used to update the encoding and version information.
- //
- // fDocument
- // The root document object, filled with the document contents.
- //
- // fCreateEntityReferenceNodes
- // Indicates whether entity reference nodes should be created.
- //
- // fIncludeIgnorableWhitespace
- // Indicates whether ignorable whiltespace should be added to
- // the DOM tree for validating parsers.
- //
- // fScanner
- // The scanner used for this parser. This is created during the
- // constructor.
- //
- // fNodeStack
- // Used to track previous parent nodes during nested element events.
- //
- // fParseInProgress
- // Used to prevent multiple entrance to the parser while its doing
- // a parse.
- //
- // fWithinElement
- // A flag to indicate that the parser is within at least one level
- // of element processing.
- //
- // fDocumentType
- // Used to store and update the documentType variable information
- // in fDocument
- //
- // fDocumentVector
- // Store all the previous fDocument(s) (thus not the current fDocument)
- // created in this parser. It is destroyed when the parser is destructed.
- //
- // fCreateCommentNodes
- // Indicates whether comment nodes should be created.
- //
- // fDocumentAdoptedByUser
- // The DOMDocument ownership has been transferred to application
- // If set to true, the parser does not own the document anymore
- // and thus will not release its memory.
- //
- // fInternalSubset
- // Buffer for storing the internal subset information.
- // Once complete (after DOCTYPE is finished scanning), send
- // it to DocumentType Node
- // -----------------------------------------------------------------------
- bool fCreateEntityReferenceNodes;
- bool fIncludeIgnorableWhitespace;
- bool fWithinElement;
- bool fParseInProgress;
- bool fCreateCommentNodes;
- bool fDocumentAdoptedByUser;
- XMLScanner* fScanner;
- DOMNode* fCurrentParent;
- DOMNode* fCurrentNode;
- DOMEntity* fCurrentEntity;
- DOMDocumentImpl* fDocument;
- ValueStackOf<DOMNode*>* fNodeStack;
- DOMDocumentTypeImpl* fDocumentType;
- RefVectorOf<DOMDocumentImpl>* fDocumentVector;
- GrammarResolver* fGrammarResolver;
- XMLStringPool* fURIStringPool;
- XMLValidator* fValidator;
- MemoryManager* fMemoryManager;
- XMLBufferMgr fBufMgr;
- XMLBuffer& fInternalSubset;
- };
- // ---------------------------------------------------------------------------
- // AbstractDOMParser: Getter methods
- // ---------------------------------------------------------------------------
- inline bool AbstractDOMParser::getExpandEntityReferences() const
- {
- return !fCreateEntityReferenceNodes;
- }
- inline bool AbstractDOMParser::getCreateEntityReferenceNodes() const
- {
- return fCreateEntityReferenceNodes;
- }
- inline bool AbstractDOMParser::getIncludeIgnorableWhitespace() const
- {
- return fIncludeIgnorableWhitespace;
- }
- inline bool AbstractDOMParser::getParseInProgress() const
- {
- return fParseInProgress;
- }
- inline XMLScanner* AbstractDOMParser::getScanner() const
- {
- return fScanner;
- }
- inline GrammarResolver* AbstractDOMParser::getGrammarResolver() const
- {
- return fGrammarResolver;
- }
- inline bool AbstractDOMParser::getCreateCommentNodes() const
- {
- return fCreateCommentNodes;
- }
- // ---------------------------------------------------------------------------
- // AbstractDOMParser: Setter methods
- // ---------------------------------------------------------------------------
- inline void AbstractDOMParser::setExpandEntityReferences(const bool expand)
- {
- fCreateEntityReferenceNodes = !expand;
- }
- inline void AbstractDOMParser::setCreateEntityReferenceNodes(const bool create)
- {
- fCreateEntityReferenceNodes = create;
- }
- inline void AbstractDOMParser::setIncludeIgnorableWhitespace(const bool include)
- {
- fIncludeIgnorableWhitespace = include;
- }
- inline void AbstractDOMParser::setCreateCommentNodes(const bool create)
- {
- fCreateCommentNodes = create;
- }
- // ---------------------------------------------------------------------------
- // AbstractDOMParser: Protected getter methods
- // ---------------------------------------------------------------------------
- inline DOMNode* AbstractDOMParser::getCurrentNode()
- {
- return fCurrentNode;
- }
- inline MemoryManager* AbstractDOMParser::getMemoryManager() const
- {
- return fMemoryManager;
- }
- // ---------------------------------------------------------------------------
- // AbstractDOMParser: Protected setter methods
- // ---------------------------------------------------------------------------
- inline void AbstractDOMParser::setCurrentNode(DOMNode* toSet)
- {
- fCurrentNode = toSet;
- }
- inline void AbstractDOMParser::setDocument(DOMDocument* toSet)
- {
- fDocument = (DOMDocumentImpl *)toSet;
- }
- inline void AbstractDOMParser::setParseInProgress(const bool toSet)
- {
- fParseInProgress = toSet;
- }
- XERCES_CPP_NAMESPACE_END
- #endif