code: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements. See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership. The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the  "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  /*
   * $Id$
   */
  package org.apache.xml.serializer;
  
  import org.apache.xml.serializer.utils.StringToIntTable;
  
  /**
   * This class has a series of flags (bit values) that describe an HTML element
   * <p>
   * This class is not a public API.
   * It is public because it is used outside of this package.
   * 
   * @xsl.usage internal
   */
  public final class ElemDesc
  {
      /** Bit flags to tell about this element type. */
      private int m_flags;
  
      /**
       * Table of attribute names to integers, which contain bit flags telling about
       *  the attributes.
       */
      private StringToIntTable m_attrs = null;
  
      /** Bit position if this element type is empty. */
      static final int EMPTY = (1 << 1);
  
      /** Bit position if this element type is a flow. */
      private static final int FLOW = (1 << 2);
  
      /** Bit position if this element type is a block. */
      static final int BLOCK = (1 << 3);
  
      /** Bit position if this element type is a block form. */
      static final int BLOCKFORM = (1 << 4);
  
      /** Bit position if this element type is a block form field set. */
      static final int BLOCKFORMFIELDSET = (1 << 5);
  
      /** Bit position if this element type is CDATA. */
      private static final int CDATA = (1 << 6);
  
      /** Bit position if this element type is PCDATA. */
      private static final int PCDATA = (1 << 7);
  
      /** Bit position if this element type is should be raw characters. */
      static final int RAW = (1 << 8);
  
      /** Bit position if this element type should be inlined. */
      private static final int INLINE = (1 << 9);
  
      /** Bit position if this element type is INLINEA. */
      private static final int INLINEA = (1 << 10);
  
      /** Bit position if this element type is an inline label. */
      static final int INLINELABEL = (1 << 11);
  
      /** Bit position if this element type is a font style. */
      static final int FONTSTYLE = (1 << 12);
  
      /** Bit position if this element type is a phrase. */
      static final int PHRASE = (1 << 13);
  
      /** Bit position if this element type is a form control. */
      static final int FORMCTRL = (1 << 14);
  
      /** Bit position if this element type is ???. */
      static final int SPECIAL = (1 << 15);
  
      /** Bit position if this element type is ???. */
      static final int ASPECIAL = (1 << 16);
  
      /** Bit position if this element type is an odd header element. */
      static final int HEADMISC = (1 << 17);
  
      /** Bit position if this element type is a head element (i.e. H1, H2, etc.) */
      static final int HEAD = (1 << 18);
  
      /** Bit position if this element type is a list. */
      static final int LIST = (1 << 19);
  
      /** Bit position if this element type is a preformatted type. */
      static final int PREFORMATTED = (1 << 20);
  
      /** Bit position if this element type is whitespace sensitive. */
      static final int WHITESPACESENSITIVE = (1 << 21);
  
      /** Bit position if this element type is a header element (i.e. HEAD). */
      static final int HEADELEM = (1 << 22);
      
      /** Bit position if this element is the "HTML" element */
      static final int HTMLELEM = (1 << 23);
  
      /** Bit position if this attribute type is a URL. */
      public static final int ATTRURL = (1 << 1);
  
      /** Bit position if this attribute type is an empty type. */
      public static final int ATTREMPTY = (1 << 2);
  
      /**
       * Construct an ElemDesc from a set of bit flags.
       *
       *
       * @param flags Bit flags that describe the basic properties of this element type.
       */
      ElemDesc(int flags)
      {
          m_flags = flags;
      }
  
      /**
       * Tell if this element type has the basic bit properties that are passed
       * as an argument.
       *
       * @param flags Bit flags that describe the basic properties of interest.
       *
       * @return true if any of the flag bits are true.
       */
      private boolean is(int flags)
      {
  
          // int which = (m_flags & flags);
          return (m_flags & flags) != 0;
      }
  
      int getFlags() {
          return m_flags;
      }
  
      /**
       * Set an attribute name and it's bit properties.
       *
       *
       * @param name non-null name of attribute, in upper case.
       * @param flags flag bits.
       */
      void setAttr(String name, int flags)
      {
  
          if (null == m_attrs)
              m_attrs = new StringToIntTable();
  
          m_attrs.put(name, flags);
      }
  
      /**
       * Tell if any of the bits of interest are set for a named attribute type.
       *
       * @param name non-null reference to attribute name, in any case.
       * @param flags flag mask.
       *
       * @return true if any of the flags are set for the named attribute.
       */
      public boolean isAttrFlagSet(String name, int flags)
      {
          return (null != m_attrs)
              ? ((m_attrs.getIgnoreCase(name) & flags) != 0)
              : false;
      }
  }
  