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* published by the Free Software Foundation. Oracle designates this
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/*
* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file and, per its terms, should not be removed:
*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom;
/**
* The <code>Text</code> interface inherits from <code>CharacterData</code>
* and represents the textual content (termed <a href='http://www.w3.org/TR/2004/REC-xml-20040204#syntax'>character data</a> in XML) of an <code>Element</code> or <code>Attr</code>. If there is no
* markup inside an element's content, the text is contained in a single
* object implementing the <code>Text</code> interface that is the only
* child of the element. If there is markup, it is parsed into the
* information items (elements, comments, etc.) and <code>Text</code> nodes
* that form the list of children of the element.
* <p>When a document is first made available via the DOM, there is only one
* <code>Text</code> node for each block of text. Users may create adjacent
* <code>Text</code> nodes that represent the contents of a given element
* without any intervening markup, but should be aware that there is no way
* to represent the separations between these nodes in XML or HTML, so they
* will not (in general) persist between DOM editing sessions. The
* <code>Node.normalize()</code> method merges any such adjacent
* <code>Text</code> objects into a single node for each block of text.
* <p> No lexical check is done on the content of a <code>Text</code> node
* and, depending on its position in the document, some characters must be
* escaped during serialization using character references; e.g. the
* characters "<&" if the textual content is part of an element or of
* an attribute, the character sequence "]]>" when part of an element,
* the quotation mark character " or the apostrophe character ' when part of
* an attribute.
* <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>.
*/
public interface Text extends CharacterData {
/**
* Breaks this node into two nodes at the specified <code>offset</code>,
* keeping both in the tree as siblings. After being split, this node
* will contain all the content up to the <code>offset</code> point. A
* new node of the same type, which contains all the content at and
* after the <code>offset</code> point, is returned. If the original
* node had a parent node, the new node is inserted as the next sibling
* of the original node. When the <code>offset</code> is equal to the
* length of this node, the new node has no data.
* @param offset The 16-bit unit offset at which to split, starting from
* <code>0</code>.
* @return The new node, of the same type as this node.
* @exception DOMException
* INDEX_SIZE_ERR: Raised if the specified offset is negative or greater
* than the number of 16-bit units in <code>data</code>.
* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
*/
public Text splitText(int offset)
throws DOMException;
/**
* Returns whether this text node contains <a href='http://www.w3.org/TR/2004/REC-xml-infoset-20040204#infoitem.character'>
* element content whitespace</a>, often abusively called "ignorable whitespace". The text node is
* determined to contain whitespace in element content during the load
* of the document or if validation occurs while using
* <code>Document.normalizeDocument()</code>.
* @since 1.5, DOM Level 3
*/
public boolean isElementContentWhitespace();
/**
* Returns all text of <code>Text</code> nodes logically-adjacent text
* nodes to this node, concatenated in document order.
* <br>For instance, in the example below <code>wholeText</code> on the
* <code>Text</code> node that contains "bar" returns "barfoo", while on
* the <code>Text</code> node that contains "foo" it returns "barfoo".
*
* <pre>
* +-----+
* | <p> |
* +-----+
* /\
* / \
* /-----\ +-------+
* | bar | | &ent; |
* \-----/ +-------+
* |
* |
* /-----\
* | foo |
* \-----/
* </pre>
* <em>Figure: barTextNode.wholeText value is "barfoo"</em>
*
* @since 1.5, DOM Level 3
*/
public String getWholeText();
/**
* Replaces the text of the current node and all logically-adjacent text
* nodes with the specified text. All logically-adjacent text nodes are
* removed including the current node unless it was the recipient of the
* replacement text.
* <p>This method returns the node which received the replacement text.
* The returned node is:</p>
* <ul>
* <li><code>null</code>, when the replacement text is
* the empty string;
* </li>
* <li>the current node, except when the current node is
* read-only;
* </li>
* <li> a new <code>Text</code> node of the same type (
* <code>Text</code> or <code>CDATASection</code>) as the current node
* inserted at the location of the replacement.
* </li>
* </ul>
* <p>For instance, in the above example calling
* <code>replaceWholeText</code> on the <code>Text</code> node that
* contains "bar" with "yo" in argument results in the following:</p>
*
* <pre>
* +-----+
* | <p> |
* +-----+
* |
* |
* /-----\
* | yo |
* \-----/
* </pre>
* <em>Figure: barTextNode.replaceWholeText("yo") modifies the
* textual content of barTextNode with "yo"</em>
*
* <p>Where the nodes to be removed are read-only descendants of an
* <code>EntityReference</code>, the <code>EntityReference</code> must
* be removed instead of the read-only nodes. If any
* <code>EntityReference</code> to be removed has descendants that are
* not <code>EntityReference</code>, <code>Text</code>, or
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