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.xpath.compiler;
  
  import java.util.Hashtable;
  
  /**
   * Table of strings to operation code lookups.
   * @xsl.usage internal
   */
  public class Keywords
  {
  
    /** Table of keywords to opcode associations. */
    private static Hashtable m_keywords = new Hashtable();
  
    /** Table of axes names to opcode associations. */
    private static Hashtable m_axisnames = new Hashtable();
  
    /** Table of function name to function ID associations. */
    private static Hashtable m_nodetests = new Hashtable();
  
    /** Table of node type strings to opcode associations. */
    private static Hashtable m_nodetypes = new Hashtable();
  
    /** ancestor axes string. */
    private static final String FROM_ANCESTORS_STRING = "ancestor";
  
    /** ancestor-or-self axes string. */
    private static final String FROM_ANCESTORS_OR_SELF_STRING =
      "ancestor-or-self";
  
    /** attribute axes string. */
    private static final String FROM_ATTRIBUTES_STRING = "attribute";
  
    /** child axes string. */
    private static final String FROM_CHILDREN_STRING = "child";
  
    /** descendant-or-self axes string. */
    private static final String FROM_DESCENDANTS_STRING = "descendant";
  
    /** ancestor axes string. */
    private static final String FROM_DESCENDANTS_OR_SELF_STRING =
      "descendant-or-self";
  
    /** following axes string. */
    private static final String FROM_FOLLOWING_STRING = "following";
  
    /** following-sibling axes string. */
    private static final String FROM_FOLLOWING_SIBLINGS_STRING =
      "following-sibling";
  
    /** parent axes string. */
    private static final String FROM_PARENT_STRING = "parent";
  
    /** preceding axes string. */
    private static final String FROM_PRECEDING_STRING = "preceding";
  
    /** preceding-sibling axes string. */
    private static final String FROM_PRECEDING_SIBLINGS_STRING =
      "preceding-sibling";
  
    /** self axes string. */
    private static final String FROM_SELF_STRING = "self";
  
    /** namespace axes string. */
    private static final String FROM_NAMESPACE_STRING = "namespace";
  
    /** self axes abreviated string. */
    private static final String FROM_SELF_ABBREVIATED_STRING = ".";
  
    /** comment node test string. */
    private static final String NODETYPE_COMMENT_STRING = "comment";
  
    /** text node test string. */
    private static final String NODETYPE_TEXT_STRING = "text";
  
    /** processing-instruction node test string. */
    private static final String NODETYPE_PI_STRING = "processing-instruction";
  
    /** Any node test string. */
    private static final String NODETYPE_NODE_STRING = "node";
  
    /** Wildcard element string. */
    private static final String NODETYPE_ANYELEMENT_STRING = "*";
  
    /** current function string. */
    public static final String FUNC_CURRENT_STRING = "current";
  
    /** last function string. */
    public static final String FUNC_LAST_STRING = "last";
  
    /** position function string. */
    public static final String FUNC_POSITION_STRING = "position";
  
    /** count function string. */
    public static final String FUNC_COUNT_STRING = "count";
  
    /** id function string. */
    static final String FUNC_ID_STRING = "id";
  
    /** key function string (XSLT). */
    public static final String FUNC_KEY_STRING = "key";
  
    /** local-name function string. */
    public static final String FUNC_LOCAL_PART_STRING = "local-name";
  
    /** namespace-uri function string. */
    public static final String FUNC_NAMESPACE_STRING = "namespace-uri";
  
    /** name function string. */
    public static final String FUNC_NAME_STRING = "name";
  
    /** generate-id function string (XSLT). */
    public static final String FUNC_GENERATE_ID_STRING = "generate-id";
  
    /** not function string. */
    public static final String FUNC_NOT_STRING = "not";
  
    /** true function string. */
    public static final String FUNC_TRUE_STRING = "true";
  
    /** false function string. */
    public static final String FUNC_FALSE_STRING = "false";
  
    /** boolean function string. */
    public static final String FUNC_BOOLEAN_STRING = "boolean";
  
    /** lang function string. */
    public static final String FUNC_LANG_STRING = "lang";
  
    /** number function string. */
    public static final String FUNC_NUMBER_STRING = "number";
  
    /** floor function string. */
    public static final String FUNC_FLOOR_STRING = "floor";
  
    /** ceiling function string. */
    public static final String FUNC_CEILING_STRING = "ceiling";
  
    /** round function string. */
    public static final String FUNC_ROUND_STRING = "round";
  
    /** sum function string. */
    public static final String FUNC_SUM_STRING = "sum";
  
    /** string function string. */
    public static final String FUNC_STRING_STRING = "string";
  
    /** starts-with function string. */
    public static final String FUNC_STARTS_WITH_STRING = "starts-with";
  
    /** contains function string. */
    public static final String FUNC_CONTAINS_STRING = "contains";
  
    /** substring-before function string. */
    public static final String FUNC_SUBSTRING_BEFORE_STRING =
      "substring-before";
  
    /** substring-after function string. */
    public static final String FUNC_SUBSTRING_AFTER_STRING = "substring-after";
  
    /** normalize-space function string. */
    public static final String FUNC_NORMALIZE_SPACE_STRING = "normalize-space";
  
    /** translate function string. */
    public static final String FUNC_TRANSLATE_STRING = "translate";
  
    /** concat function string. */
    public static final String FUNC_CONCAT_STRING = "concat";
  
    /** system-property function string. */
    public static final String FUNC_SYSTEM_PROPERTY_STRING = "system-property";
  
    /** function-available function string (XSLT). */
    public static final String FUNC_EXT_FUNCTION_AVAILABLE_STRING =
      "function-available";
  
    /** element-available function string (XSLT). */
    public static final String FUNC_EXT_ELEM_AVAILABLE_STRING =
      "element-available";
  
    /** substring function string. */
    public static final String FUNC_SUBSTRING_STRING = "substring";
  
    /** string-length function string. */
    public static final String FUNC_STRING_LENGTH_STRING = "string-length";
  
    /** unparsed-entity-uri function string (XSLT). */
    public static final String FUNC_UNPARSED_ENTITY_URI_STRING =
      "unparsed-entity-uri";
  
    // Proprietary, built in functions
  
    /** current function string (Proprietary). */
    public static final String FUNC_DOCLOCATION_STRING = "document-location";
  
    static
    {
      m_axisnames.put(FROM_ANCESTORS_STRING,
                      new Integer(OpCodes.FROM_ANCESTORS));
      m_axisnames.put(FROM_ANCESTORS_OR_SELF_STRING,
                      new Integer(OpCodes.FROM_ANCESTORS_OR_SELF));
      m_axisnames.put(FROM_ATTRIBUTES_STRING,
                      new Integer(OpCodes.FROM_ATTRIBUTES));
      m_axisnames.put(FROM_CHILDREN_STRING,
                      new Integer(OpCodes.FROM_CHILDREN));
      m_axisnames.put(FROM_DESCENDANTS_STRING,
                      new Integer(OpCodes.FROM_DESCENDANTS));
      m_axisnames.put(FROM_DESCENDANTS_OR_SELF_STRING,
                      new Integer(OpCodes.FROM_DESCENDANTS_OR_SELF));
      m_axisnames.put(FROM_FOLLOWING_STRING,
                      new Integer(OpCodes.FROM_FOLLOWING));
      m_axisnames.put(FROM_FOLLOWING_SIBLINGS_STRING,
                      new Integer(OpCodes.FROM_FOLLOWING_SIBLINGS));
      m_axisnames.put(FROM_PARENT_STRING,
                      new Integer(OpCodes.FROM_PARENT));
      m_axisnames.put(FROM_PRECEDING_STRING,
                      new Integer(OpCodes.FROM_PRECEDING));
      m_axisnames.put(FROM_PRECEDING_SIBLINGS_STRING,
                      new Integer(OpCodes.FROM_PRECEDING_SIBLINGS));
      m_axisnames.put(FROM_SELF_STRING,
                      new Integer(OpCodes.FROM_SELF));
      m_axisnames.put(FROM_NAMESPACE_STRING,
                      new Integer(OpCodes.FROM_NAMESPACE));
      m_nodetypes.put(NODETYPE_COMMENT_STRING,
                      new Integer(OpCodes.NODETYPE_COMMENT));
      m_nodetypes.put(NODETYPE_TEXT_STRING,
                      new Integer(OpCodes.NODETYPE_TEXT));
      m_nodetypes.put(NODETYPE_PI_STRING,
                      new Integer(OpCodes.NODETYPE_PI));
      m_nodetypes.put(NODETYPE_NODE_STRING,
                      new Integer(OpCodes.NODETYPE_NODE));
      m_nodetypes.put(NODETYPE_ANYELEMENT_STRING,
                      new Integer(OpCodes.NODETYPE_ANYELEMENT));
      m_keywords.put(FROM_SELF_ABBREVIATED_STRING,
                     new Integer(OpCodes.FROM_SELF));
      m_keywords.put(FUNC_ID_STRING,
                     new Integer(FunctionTable.FUNC_ID));
      m_keywords.put(FUNC_KEY_STRING,
                     new Integer(FunctionTable.FUNC_KEY));
  
      m_nodetests.put(NODETYPE_COMMENT_STRING,
                      new Integer(OpCodes.NODETYPE_COMMENT));
      m_nodetests.put(NODETYPE_TEXT_STRING,
                      new Integer(OpCodes.NODETYPE_TEXT));
      m_nodetests.put(NODETYPE_PI_STRING,
                      new Integer(OpCodes.NODETYPE_PI));
      m_nodetests.put(NODETYPE_NODE_STRING,
                      new Integer(OpCodes.NODETYPE_NODE));
    }
    
    static Object getAxisName(String key){
            return m_axisnames.get(key);
    }
    
    static Object lookupNodeTest(String key){
            return m_nodetests.get(key);
    }
    
    static Object getKeyWord(String key){
            return m_keywords.get(key);
    }
    
    static Object getNodeType(String key){
            return m_nodetypes.get(key);
    }      
  }
  