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A slightly adapted version of Xerces 2.11.0 to allow the XMLStringBuffer responsible for XML attribute scanning to start larger and thus avoid extended appending times. The initial buffer size is controlled by settting the system property julielab.xerces.attributebuffersize (also available as constant XMLScanner#ATTRIBUTE_BUFFER_SIZE).

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/*
 * 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.xpath;

/**
 * The XPathNSResolver interface permit prefix 
 * strings in the expression to be properly bound to 
 * namespaceURI strings. XPathEvaluator can 
 * construct an implementation of XPathNSResolver from a node, 
 * or the interface may be implemented by any application.
 * See also the Document Object Model (DOM) Level 3 XPath Specification.
 */
public interface XPathNSResolver {
    /**
     * Look up the namespace URI associated to the given namespace prefix. The 
     * XPath evaluator must never call this with a null or 
     * empty argument, because the result of doing this is undefined.
     * @param prefix The prefix to look for.
     * @return Returns the associated namespace URI or null if 
     *   none is found.
     */
    public String lookupNamespaceURI(String prefix);

}