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