content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed 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.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * 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 jaxp.sun.org.apache.xerces.internal.impl;
  
  import java.io.IOException;
  
  import jaxp.sun.org.apache.xerces.internal.util.SymbolTable;
  import jaxp.sun.org.apache.xerces.internal.util.XML11Char;
  import jaxp.sun.org.apache.xerces.internal.util.XMLChar;
  import jaxp.sun.org.apache.xerces.internal.util.XMLStringBuffer;
  import jaxp.sun.org.apache.xerces.internal.xni.XMLString;
  import jaxp.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>
   *  <li>http://apache.org/xml/features/scanner/notify-char-refs</li>
   *  <li>http://apache.org/xml/properties/internal/symbol-table</li>
   *  <li>http://apache.org/xml/properties/internal/error-reporter</li>
   *  <li>http://apache.org/xml/properties/internal/entity-manager</li>
   * </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:</strong> 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
  