216 lines
8.8 KiB
C++
216 lines
8.8 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: DOMCharacterData.hpp 527149 2007-04-10 14:56:39Z amassari $
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*/
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#if !defined(XERCESC_INCLUDE_GUARD_DOMCHARACTERDATA_HPP)
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#define XERCESC_INCLUDE_GUARD_DOMCHARACTERDATA_HPP
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#include <xercesc/util/XercesDefs.hpp>
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#include <xercesc/dom/DOMNode.hpp>
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XERCES_CPP_NAMESPACE_BEGIN
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/**
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* The <code>DOMCharacterData</code> interface extends DOMNode with a set of
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* attributes and methods for accessing character data in the DOM. For
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* clarity this set is defined here rather than on each object that uses
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* these attributes and methods. No DOM objects correspond directly to
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* <code>DOMCharacterData</code>, though <code>DOMText</code> and others do
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* inherit the interface from it. All <code>offsets</code> in this interface
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* start from <code>0</code>.
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* <p>As explained in the DOM spec, text strings in
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* the DOM are represented in UTF-16, i.e. as a sequence of 16-bit units. In
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* the following, the term 16-bit units is used whenever necessary to
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* indicate that indexing on DOMCharacterData is done in 16-bit units.
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* <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113'>Document Object Model (DOM) Level 2 Core Specification</a>.
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* @since DOM Level 1
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*/
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class CDOM_EXPORT DOMCharacterData: public DOMNode {
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protected:
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// -----------------------------------------------------------------------
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// Hidden constructors
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// -----------------------------------------------------------------------
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/** @name Hidden constructors */
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//@{
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DOMCharacterData() {}
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DOMCharacterData(const DOMCharacterData &other) : DOMNode(other) {}
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//@}
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private:
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// -----------------------------------------------------------------------
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// Unimplemented constructors and operators
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// -----------------------------------------------------------------------
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/** @name Unimplemented operators */
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//@{
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DOMCharacterData & operator = (const DOMCharacterData &);
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//@}
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public:
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// -----------------------------------------------------------------------
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// All constructors are hidden, just the destructor is available
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// -----------------------------------------------------------------------
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/** @name Destructor */
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//@{
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/**
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* Destructor
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*
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*/
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virtual ~DOMCharacterData() {};
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//@}
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// -----------------------------------------------------------------------
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// Virtual DOMCharacterData interface
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// -----------------------------------------------------------------------
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/** @name Functions introduced in DOM Level 1 */
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//@{
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// -----------------------------------------------------------------------
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// Getter methods
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// -----------------------------------------------------------------------
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/**
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* Returns the character data of the node that implements this interface.
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*
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* The DOM implementation may not put arbitrary limits on the amount of data that
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* may be stored in a <code>DOMCharacterData</code> node. However,
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* implementation limits may mean that the entirety of a node's data may
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* not fit into a single <code>XMLCh* String</code>. In such cases, the user
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* may call <code>substringData</code> to retrieve the data in
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* appropriately sized pieces.
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* @exception DOMException
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* NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.
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* @since DOM Level 1
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*/
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virtual const XMLCh * getData() const = 0;
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/**
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* Returns the number of characters that are available through <code>data</code> and
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* the <code>substringData</code> method below.
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*
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* This may have the value
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* zero, i.e., <code>CharacterData</code> nodes may be empty.
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* @since DOM Level 1
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*/
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virtual XMLSize_t getLength() const = 0;
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/**
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* Extracts a range of data from the node.
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*
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* @param offset Start offset of substring to extract.
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* @param count The number of characters to extract.
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* @return The specified substring. If the sum of <code>offset</code> and
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* <code>count</code> exceeds the <code>length</code>, then all
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* characters to the end of the data are returned.
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* @exception DOMException
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* INDEX_SIZE_ERR: Raised if the specified offset is negative or greater
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* than the number of characters in <code>data</code>, or if the
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* specified <code>count</code> is negative.
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* @since DOM Level 1
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*/
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virtual const XMLCh * substringData(XMLSize_t offset,
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XMLSize_t count) const = 0;
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// -----------------------------------------------------------------------
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// String methods
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// -----------------------------------------------------------------------
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/**
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* Append the string to the end of the character data of the node.
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*
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* Upon success, <code>data</code> provides access to the concatenation of
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* <code>data</code> and the <code>XMLCh* String</code> specified.
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* @param arg The <code>XMLCh* String</code> to append.
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* @exception DOMException
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* NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
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* @since DOM Level 1
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*/
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virtual void appendData(const XMLCh *arg) = 0;
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/**
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* Insert a string at the specified character offset.
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*
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* @param offset The character offset at which to insert.
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* @param arg The <code>XMLCh* String</code> to insert.
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* @exception DOMException
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* INDEX_SIZE_ERR: Raised if the specified offset is negative or greater
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* than the number of characters in <code>data</code>.
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* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
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* @since DOM Level 1
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*/
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virtual void insertData(XMLSize_t offset, const XMLCh *arg) = 0;
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/**
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* Remove a range of characters from the node.
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*
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* Upon success,
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* <code>data</code> and <code>length</code> reflect the change.
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* @param offset The offset from which to remove characters.
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* @param count The number of characters to delete. If the sum of
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* <code>offset</code> and <code>count</code> exceeds <code>length</code>
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* then all characters from <code>offset</code> to the end of the data
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* are deleted.
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* @exception DOMException
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* INDEX_SIZE_ERR: Raised if the specified offset is negative or greater
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* than the number of characters in <code>data</code>, or if the
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* specified <code>count</code> is negative.
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* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
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* @since DOM Level 1
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*/
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virtual void deleteData(XMLSize_t offset,
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XMLSize_t count) = 0;
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/**
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* Replace the characters starting at the specified character offset with
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* the specified string.
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*
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* @param offset The offset from which to start replacing.
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* @param count The number of characters to replace. If the sum of
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* <code>offset</code> and <code>count</code> exceeds <code>length</code>
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* , then all characters to the end of the data are replaced (i.e., the
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* effect is the same as a <code>remove</code> method call with the same
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* range, followed by an <code>append</code> method invocation).
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* @param arg The <code>XMLCh* String</code> with which the range must be
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* replaced.
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* @exception DOMException
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* INDEX_SIZE_ERR: Raised if the specified offset is negative or greater
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* than the number of characters in <code>data</code>, or if the
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* specified <code>count</code> is negative.
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* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
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* @since DOM Level 1
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*/
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virtual void replaceData(XMLSize_t offset,
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XMLSize_t count,
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const XMLCh *arg) = 0;
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/**
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* Sets the character data of the node that implements this interface.
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*
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* @param data The <code>XMLCh* String</code> to set.
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* @since DOM Level 1
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*/
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virtual void setData(const XMLCh *data) = 0;
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//@}
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};
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XERCES_CPP_NAMESPACE_END
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#endif
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