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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/external/w3c_dom/org/w3c/dom/ls/LSParserFilter.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/external/w3c_dom/org/w3c/dom/ls/LSParserFilter.java | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/external/w3c_dom/org/w3c/dom/ls/LSParserFilter.java b/gcc-4.4.3/libjava/classpath/external/w3c_dom/org/w3c/dom/ls/LSParserFilter.java new file mode 100644 index 000000000..4e612945e --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/external/w3c_dom/org/w3c/dom/ls/LSParserFilter.java @@ -0,0 +1,172 @@ +/* + * 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.ls; + +import org.w3c.dom.Node; +import org.w3c.dom.Element; + +/** + * <code>LSParserFilter</code>s provide applications the ability to examine + * nodes as they are being constructed while parsing. As each node is + * examined, it may be modified or removed, or the entire parse may be + * terminated early. + * <p> At the time any of the filter methods are called by the parser, the + * owner Document and DOMImplementation objects exist and are accessible. + * The document element is never passed to the <code>LSParserFilter</code> + * methods, i.e. it is not possible to filter out the document element. + * <code>Document</code>, <code>DocumentType</code>, <code>Notation</code>, + * <code>Entity</code>, and <code>Attr</code> nodes are never passed to the + * <code>acceptNode</code> method on the filter. The child nodes of an + * <code>EntityReference</code> node are passed to the filter if the + * parameter "<a href='http://www.w3.org/TR/DOM-Level-3-Core/core.html#parameter-entities'> + * entities</a>" is set to <code>false</code>. Note that, as described by the parameter "<a href='http://www.w3.org/TR/DOM-Level-3-Core/core.html#parameter-entities'> + * entities</a>", unexpanded entity reference nodes are never discarded and are always + * passed to the filter. + * <p> All validity checking while parsing a document occurs on the source + * document as it appears on the input stream, not on the DOM document as it + * is built in memory. With filters, the document in memory may be a subset + * of the document on the stream, and its validity may have been affected by + * the filtering. + * <p> All default attributes must be present on elements when the elements + * are passed to the filter methods. All other default content must be + * passed to the filter methods. + * <p> DOM applications must not raise exceptions in a filter. The effect of + * throwing exceptions from a filter is DOM implementation dependent. + * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-LS-20040407'>Document Object Model (DOM) Level 3 Load +and Save Specification</a>. + */ +public interface LSParserFilter { + // Constants returned by startElement and acceptNode + /** + * Accept the node. + */ + public static final short FILTER_ACCEPT = 1; + /** + * Reject the node and its children. + */ + public static final short FILTER_REJECT = 2; + /** + * Skip this single node. The children of this node will still be + * considered. + */ + public static final short FILTER_SKIP = 3; + /** + * Interrupt the normal processing of the document. + */ + public static final short FILTER_INTERRUPT = 4; + + /** + * The parser will call this method after each <code>Element</code> start + * tag has been scanned, but before the remainder of the + * <code>Element</code> is processed. The intent is to allow the + * element, including any children, to be efficiently skipped. Note that + * only element nodes are passed to the <code>startElement</code> + * function. + * <br>The element node passed to <code>startElement</code> for filtering + * will include all of the Element's attributes, but none of the + * children nodes. The Element may not yet be in place in the document + * being constructed (it may not have a parent node.) + * <br>A <code>startElement</code> filter function may access or change + * the attributes for the Element. Changing Namespace declarations will + * have no effect on namespace resolution by the parser. + * <br>For efficiency, the Element node passed to the filter may not be + * the same one as is actually placed in the tree if the node is + * accepted. And the actual node (node object identity) may be reused + * during the process of reading in and filtering a document. + * @param elementArg The newly encountered element. At the time this + * method is called, the element is incomplete - it will have its + * attributes, but no children. + * @return + * <ul> + * <li> <code>FILTER_ACCEPT</code> if the <code>Element</code> should + * be included in the DOM document being built. + * </li> + * <li> + * <code>FILTER_REJECT</code> if the <code>Element</code> and all of + * its children should be rejected. + * </li> + * <li> <code>FILTER_SKIP</code> if the + * <code>Element</code> should be skipped. All of its children are + * inserted in place of the skipped <code>Element</code> node. + * </li> + * <li> + * <code>FILTER_INTERRUPT</code> if the filter wants to stop the + * processing of the document. Interrupting the processing of the + * document does no longer guarantee that the resulting DOM tree is + * XML well-formed. The <code>Element</code> is rejected. + * </li> + * </ul> Returning + * any other values will result in unspecified behavior. + */ + public short startElement(Element elementArg); + + /** + * This method will be called by the parser at the completion of the + * parsing of each node. The node and all of its descendants will exist + * and be complete. The parent node will also exist, although it may be + * incomplete, i.e. it may have additional children that have not yet + * been parsed. Attribute nodes are never passed to this function. + * <br>From within this method, the new node may be freely modified - + * children may be added or removed, text nodes modified, etc. The state + * of the rest of the document outside this node is not defined, and the + * affect of any attempt to navigate to, or to modify any other part of + * the document is undefined. + * <br>For validating parsers, the checks are made on the original + * document, before any modification by the filter. No validity checks + * are made on any document modifications made by the filter. + * <br>If this new node is rejected, the parser might reuse the new node + * and any of its descendants. + * @param nodeArg The newly constructed element. At the time this method + * is called, the element is complete - it has all of its children + * (and their children, recursively) and attributes, and is attached + * as a child to its parent. + * @return + * <ul> + * <li> <code>FILTER_ACCEPT</code> if this <code>Node</code> should + * be included in the DOM document being built. + * </li> + * <li> + * <code>FILTER_REJECT</code> if the <code>Node</code> and all of its + * children should be rejected. + * </li> + * <li> <code>FILTER_SKIP</code> if the + * <code>Node</code> should be skipped and the <code>Node</code> + * should be replaced by all the children of the <code>Node</code>. + * </li> + * <li> + * <code>FILTER_INTERRUPT</code> if the filter wants to stop the + * processing of the document. Interrupting the processing of the + * document does no longer guarantee that the resulting DOM tree is + * XML well-formed. The <code>Node</code> is accepted and will be the + * last completely parsed node. + * </li> + * </ul> + */ + public short acceptNode(Node nodeArg); + + /** + * Tells the <code>LSParser</code> what types of nodes to show to the + * method <code>LSParserFilter.acceptNode</code>. If a node is not shown + * to the filter using this attribute, it is automatically included in + * the DOM document being built. See <code>NodeFilter</code> for + * definition of the constants. The constants <code>SHOW_ATTRIBUTE</code> + * , <code>SHOW_DOCUMENT</code>, <code>SHOW_DOCUMENT_TYPE</code>, + * <code>SHOW_NOTATION</code>, <code>SHOW_ENTITY</code>, and + * <code>SHOW_DOCUMENT_FRAGMENT</code> are meaningless here. Those nodes + * will never be passed to <code>LSParserFilter.acceptNode</code>. + * <br> The constants used here are defined in [<a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Traversal-Range-20001113'>DOM Level 2 Traversal and Range</a>] + * . + */ + public int getWhatToShow(); + +} |