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Java example source code file (XML11DTDScannerImpl.java)
The XML11DTDScannerImpl.java Java example source code/* * reserved comment block * DO NOT REMOVE OR ALTER! */ /* * The Apache Software License, Version 1.1 * * * Copyright (c) 1999-2004 The Apache Software Foundation. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Xerces" and "Apache Software Foundation" must * not be used to endorse or promote products derived from this * software without prior written permission. For written * permission, please contact apache@apache.org. * * 5. Products derived from this software may not be called "Apache", * nor may "Apache" appear in their name, without prior written * permission of the Apache Software Foundation. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation and was * originally based on software copyright (c) 1999, International * Business Machines, Inc., http://www.apache.org. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. */ package com.sun.org.apache.xerces.internal.impl; import java.io.IOException; import com.sun.org.apache.xerces.internal.util.SymbolTable; import com.sun.org.apache.xerces.internal.util.XML11Char; import com.sun.org.apache.xerces.internal.util.XMLChar; import com.sun.org.apache.xerces.internal.util.XMLStringBuffer; import com.sun.org.apache.xerces.internal.xni.XMLString; import com.sun.org.apache.xerces.internal.xni.XNIException; /** * This class is responsible for scanning the declarations found * in the internal and external subsets of a DTD in an XML document. * The scanner acts as the sources for the DTD information which is * communicated to the DTD handlers. * <p> * This component requires the following features and properties from the * component manager that uses it: * <ul> * <li>http://xml.org/sax/features/validation * <li>http://apache.org/xml/features/scanner/notify-char-refs * <li>http://apache.org/xml/properties/internal/symbol-table * <li>http://apache.org/xml/properties/internal/error-reporter * <li>http://apache.org/xml/properties/internal/entity-manager * </ul> * * @xerces.internal * * @author Arnaud Le Hors, IBM * @author Andy Clark, IBM * @author Glenn Marcy, IBM * @author Eric Ye, IBM * */ public class XML11DTDScannerImpl extends XMLDTDScannerImpl { /** Array of 3 strings. */ private String[] fStrings = new String[3]; /** String. */ private XMLString fString = new XMLString(); /** String buffer. */ private XMLStringBuffer fStringBuffer = new XMLStringBuffer(); /** String buffer. */ private XMLStringBuffer fStringBuffer2 = new XMLStringBuffer(); private XMLStringBuffer fStringBuffer3 = new XMLStringBuffer(); // // Constructors // /** Default constructor. */ public XML11DTDScannerImpl() {super();} // <init>() /** Constructor for he use of non-XMLComponentManagers. */ public XML11DTDScannerImpl(SymbolTable symbolTable, XMLErrorReporter errorReporter, XMLEntityManager entityManager) { super(symbolTable, errorReporter, entityManager); } // // XMLDTDScanner methods // // // XMLScanner methods // // NOTE: this is a carbon copy of the code in XML11DocumentScannerImpl; // we need to override these methods in both places. Ah for // multiple inheritance... // This needs to be refactored!!! - NG /** * Scans public ID literal. * * [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'" * [13] PubidChar::= #x20 | #xD | #xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%] * * The returned string is normalized according to the following rule, * from http://www.w3.org/TR/REC-xml#dt-pubid: * * Before a match is attempted, all strings of white space in the public * identifier must be normalized to single space characters (#x20), and * leading and trailing white space must be removed. * * @param literal The string to fill in with the public ID literal. * @return True on success. * * <strong>Note: This method uses fStringBuffer, anything in it at * the time of calling is lost. */ protected boolean scanPubidLiteral(XMLString literal) throws IOException, XNIException { int quote = fEntityScanner.scanChar(); if (quote != '\'' && quote != '"') { reportFatalError("QuoteRequiredInPublicID", null); return false; } fStringBuffer.clear(); // skip leading whitespace boolean skipSpace = true; boolean dataok = true; while (true) { int c = fEntityScanner.scanChar(); // REVISIT: it could really only be \n or 0x20; all else is normalized, no? - neilg if (c == ' ' || c == '\n' || c == '\r' || c == 0x85 || c == 0x2028) { if (!skipSpace) { // take the first whitespace as a space and skip the others fStringBuffer.append(' '); skipSpace = true; } } else if (c == quote) { if (skipSpace) { // if we finished on a space let's trim it fStringBuffer.length--; } literal.setValues(fStringBuffer); break; } else if (XMLChar.isPubid(c)) { fStringBuffer.append((char)c); skipSpace = false; } else if (c == -1) { reportFatalError("PublicIDUnterminated", null); return false; } else { dataok = false; reportFatalError("InvalidCharInPublicID", new Object[]{Integer.toHexString(c)}); } } return dataok; } /** * Normalize whitespace in an XMLString converting all whitespace * characters to space characters. */ protected void normalizeWhitespace(XMLString value) { int end = value.offset + value.length; for (int i = value.offset; i < end; ++i) { int c = value.ch[i]; if (XMLChar.isSpace(c)) { value.ch[i] = ' '; } } } /** * Normalize whitespace in an XMLString converting all whitespace * characters to space characters. */ protected void normalizeWhitespace(XMLString value, int fromIndex) { int end = value.offset + value.length; for (int i = value.offset + fromIndex; i < end; ++i) { int c = value.ch[i]; if (XMLChar.isSpace(c)) { value.ch[i] = ' '; } } } /** * Checks whether this string would be unchanged by normalization. * * @return -1 if the value would be unchanged by normalization, * otherwise the index of the first whitespace character which * would be transformed. */ protected int isUnchangedByNormalization(XMLString value) { int end = value.offset + value.length; for (int i = value.offset; i < end; ++i) { int c = value.ch[i]; if (XMLChar.isSpace(c)) { return i - value.offset; } } return -1; } // returns true if the given character is not // valid with respect to the version of // XML understood by this scanner. protected boolean isInvalid(int value) { return (!XML11Char.isXML11Valid(value)); } // isInvalid(int): boolean // returns true if the given character is not // valid or may not be used outside a character reference // with respect to the version of XML understood by this scanner. protected boolean isInvalidLiteral(int value) { return (!XML11Char.isXML11ValidLiteral(value)); } // isInvalidLiteral(int): boolean // returns true if the given character is // a valid nameChar with respect to the version of // XML understood by this scanner. protected boolean isValidNameChar(int value) { return (XML11Char.isXML11Name(value)); } // isValidNameChar(int): boolean // returns true if the given character is // a valid nameStartChar with respect to the version of // XML understood by this scanner. protected boolean isValidNameStartChar(int value) { return (XML11Char.isXML11NameStart(value)); } // isValidNameStartChar(int): boolean // returns true if the given character is // a valid NCName character with respect to the version of // XML understood by this scanner. protected boolean isValidNCName(int value) { return (XML11Char.isXML11NCName(value)); } // isValidNCName(int): boolean // returns true if the given character is // a valid high surrogate for a nameStartChar // with respect to the version of XML understood // by this scanner. protected boolean isValidNameStartHighSurrogate(int value) { return XML11Char.isXML11NameHighSurrogate(value); } // isValidNameStartHighSurrogate(int): boolean // note that, according to 4.3.4 of the XML 1.1 spec, XML 1.1 // documents may invoke 1.0 entities; thus either version decl (or none!) // is allowed to appear in this context protected boolean versionSupported(String version) { return version.equals("1.1") || version.equals ("1.0"); } // versionSupported(String): boolean // returns the error message key for unsupported // versions of XML with respect to the version of // XML understood by this scanner. protected String getVersionNotSupportedKey () { return "VersionNotSupported11"; } // getVersionNotSupportedKey: String } // class XML11DTDScannerImpl Other Java examples (source code examples)Here is a short list of links related to this Java XML11DTDScannerImpl.java source code file: |
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