001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 /*
019 * $Id: Keywords.java 468655 2006-10-28 07:12:06Z minchau $
020 */
021 package org.apache.xpath.compiler;
022
023 import java.util.Hashtable;
024
025 /**
026 * Table of strings to operation code lookups.
027 * @xsl.usage internal
028 */
029 public class Keywords
030 {
031
032 /** Table of keywords to opcode associations. */
033 private static Hashtable m_keywords = new Hashtable();
034
035 /** Table of axes names to opcode associations. */
036 private static Hashtable m_axisnames = new Hashtable();
037
038 /** Table of function name to function ID associations. */
039 private static Hashtable m_nodetests = new Hashtable();
040
041 /** Table of node type strings to opcode associations. */
042 private static Hashtable m_nodetypes = new Hashtable();
043
044 /** ancestor axes string. */
045 private static final String FROM_ANCESTORS_STRING = "ancestor";
046
047 /** ancestor-or-self axes string. */
048 private static final String FROM_ANCESTORS_OR_SELF_STRING =
049 "ancestor-or-self";
050
051 /** attribute axes string. */
052 private static final String FROM_ATTRIBUTES_STRING = "attribute";
053
054 /** child axes string. */
055 private static final String FROM_CHILDREN_STRING = "child";
056
057 /** descendant-or-self axes string. */
058 private static final String FROM_DESCENDANTS_STRING = "descendant";
059
060 /** ancestor axes string. */
061 private static final String FROM_DESCENDANTS_OR_SELF_STRING =
062 "descendant-or-self";
063
064 /** following axes string. */
065 private static final String FROM_FOLLOWING_STRING = "following";
066
067 /** following-sibling axes string. */
068 private static final String FROM_FOLLOWING_SIBLINGS_STRING =
069 "following-sibling";
070
071 /** parent axes string. */
072 private static final String FROM_PARENT_STRING = "parent";
073
074 /** preceding axes string. */
075 private static final String FROM_PRECEDING_STRING = "preceding";
076
077 /** preceding-sibling axes string. */
078 private static final String FROM_PRECEDING_SIBLINGS_STRING =
079 "preceding-sibling";
080
081 /** self axes string. */
082 private static final String FROM_SELF_STRING = "self";
083
084 /** namespace axes string. */
085 private static final String FROM_NAMESPACE_STRING = "namespace";
086
087 /** self axes abreviated string. */
088 private static final String FROM_SELF_ABBREVIATED_STRING = ".";
089
090 /** comment node test string. */
091 private static final String NODETYPE_COMMENT_STRING = "comment";
092
093 /** text node test string. */
094 private static final String NODETYPE_TEXT_STRING = "text";
095
096 /** processing-instruction node test string. */
097 private static final String NODETYPE_PI_STRING = "processing-instruction";
098
099 /** Any node test string. */
100 private static final String NODETYPE_NODE_STRING = "node";
101
102 /** Wildcard element string. */
103 private static final String NODETYPE_ANYELEMENT_STRING = "*";
104
105 /** current function string. */
106 public static final String FUNC_CURRENT_STRING = "current";
107
108 /** last function string. */
109 public static final String FUNC_LAST_STRING = "last";
110
111 /** position function string. */
112 public static final String FUNC_POSITION_STRING = "position";
113
114 /** count function string. */
115 public static final String FUNC_COUNT_STRING = "count";
116
117 /** id function string. */
118 static final String FUNC_ID_STRING = "id";
119
120 /** key function string (XSLT). */
121 public static final String FUNC_KEY_STRING = "key";
122
123 /** local-name function string. */
124 public static final String FUNC_LOCAL_PART_STRING = "local-name";
125
126 /** namespace-uri function string. */
127 public static final String FUNC_NAMESPACE_STRING = "namespace-uri";
128
129 /** name function string. */
130 public static final String FUNC_NAME_STRING = "name";
131
132 /** generate-id function string (XSLT). */
133 public static final String FUNC_GENERATE_ID_STRING = "generate-id";
134
135 /** not function string. */
136 public static final String FUNC_NOT_STRING = "not";
137
138 /** true function string. */
139 public static final String FUNC_TRUE_STRING = "true";
140
141 /** false function string. */
142 public static final String FUNC_FALSE_STRING = "false";
143
144 /** boolean function string. */
145 public static final String FUNC_BOOLEAN_STRING = "boolean";
146
147 /** lang function string. */
148 public static final String FUNC_LANG_STRING = "lang";
149
150 /** number function string. */
151 public static final String FUNC_NUMBER_STRING = "number";
152
153 /** floor function string. */
154 public static final String FUNC_FLOOR_STRING = "floor";
155
156 /** ceiling function string. */
157 public static final String FUNC_CEILING_STRING = "ceiling";
158
159 /** round function string. */
160 public static final String FUNC_ROUND_STRING = "round";
161
162 /** sum function string. */
163 public static final String FUNC_SUM_STRING = "sum";
164
165 /** string function string. */
166 public static final String FUNC_STRING_STRING = "string";
167
168 /** starts-with function string. */
169 public static final String FUNC_STARTS_WITH_STRING = "starts-with";
170
171 /** contains function string. */
172 public static final String FUNC_CONTAINS_STRING = "contains";
173
174 /** substring-before function string. */
175 public static final String FUNC_SUBSTRING_BEFORE_STRING =
176 "substring-before";
177
178 /** substring-after function string. */
179 public static final String FUNC_SUBSTRING_AFTER_STRING = "substring-after";
180
181 /** normalize-space function string. */
182 public static final String FUNC_NORMALIZE_SPACE_STRING = "normalize-space";
183
184 /** translate function string. */
185 public static final String FUNC_TRANSLATE_STRING = "translate";
186
187 /** concat function string. */
188 public static final String FUNC_CONCAT_STRING = "concat";
189
190 /** system-property function string. */
191 public static final String FUNC_SYSTEM_PROPERTY_STRING = "system-property";
192
193 /** function-available function string (XSLT). */
194 public static final String FUNC_EXT_FUNCTION_AVAILABLE_STRING =
195 "function-available";
196
197 /** element-available function string (XSLT). */
198 public static final String FUNC_EXT_ELEM_AVAILABLE_STRING =
199 "element-available";
200
201 /** substring function string. */
202 public static final String FUNC_SUBSTRING_STRING = "substring";
203
204 /** string-length function string. */
205 public static final String FUNC_STRING_LENGTH_STRING = "string-length";
206
207 /** unparsed-entity-uri function string (XSLT). */
208 public static final String FUNC_UNPARSED_ENTITY_URI_STRING =
209 "unparsed-entity-uri";
210
211 // Proprietary, built in functions
212
213 /** current function string (Proprietary). */
214 public static final String FUNC_DOCLOCATION_STRING = "document-location";
215
216 static
217 {
218 m_axisnames.put(FROM_ANCESTORS_STRING,
219 new Integer(OpCodes.FROM_ANCESTORS));
220 m_axisnames.put(FROM_ANCESTORS_OR_SELF_STRING,
221 new Integer(OpCodes.FROM_ANCESTORS_OR_SELF));
222 m_axisnames.put(FROM_ATTRIBUTES_STRING,
223 new Integer(OpCodes.FROM_ATTRIBUTES));
224 m_axisnames.put(FROM_CHILDREN_STRING,
225 new Integer(OpCodes.FROM_CHILDREN));
226 m_axisnames.put(FROM_DESCENDANTS_STRING,
227 new Integer(OpCodes.FROM_DESCENDANTS));
228 m_axisnames.put(FROM_DESCENDANTS_OR_SELF_STRING,
229 new Integer(OpCodes.FROM_DESCENDANTS_OR_SELF));
230 m_axisnames.put(FROM_FOLLOWING_STRING,
231 new Integer(OpCodes.FROM_FOLLOWING));
232 m_axisnames.put(FROM_FOLLOWING_SIBLINGS_STRING,
233 new Integer(OpCodes.FROM_FOLLOWING_SIBLINGS));
234 m_axisnames.put(FROM_PARENT_STRING,
235 new Integer(OpCodes.FROM_PARENT));
236 m_axisnames.put(FROM_PRECEDING_STRING,
237 new Integer(OpCodes.FROM_PRECEDING));
238 m_axisnames.put(FROM_PRECEDING_SIBLINGS_STRING,
239 new Integer(OpCodes.FROM_PRECEDING_SIBLINGS));
240 m_axisnames.put(FROM_SELF_STRING,
241 new Integer(OpCodes.FROM_SELF));
242 m_axisnames.put(FROM_NAMESPACE_STRING,
243 new Integer(OpCodes.FROM_NAMESPACE));
244 m_nodetypes.put(NODETYPE_COMMENT_STRING,
245 new Integer(OpCodes.NODETYPE_COMMENT));
246 m_nodetypes.put(NODETYPE_TEXT_STRING,
247 new Integer(OpCodes.NODETYPE_TEXT));
248 m_nodetypes.put(NODETYPE_PI_STRING,
249 new Integer(OpCodes.NODETYPE_PI));
250 m_nodetypes.put(NODETYPE_NODE_STRING,
251 new Integer(OpCodes.NODETYPE_NODE));
252 m_nodetypes.put(NODETYPE_ANYELEMENT_STRING,
253 new Integer(OpCodes.NODETYPE_ANYELEMENT));
254 m_keywords.put(FROM_SELF_ABBREVIATED_STRING,
255 new Integer(OpCodes.FROM_SELF));
256 m_keywords.put(FUNC_ID_STRING,
257 new Integer(FunctionTable.FUNC_ID));
258 m_keywords.put(FUNC_KEY_STRING,
259 new Integer(FunctionTable.FUNC_KEY));
260
261 m_nodetests.put(NODETYPE_COMMENT_STRING,
262 new Integer(OpCodes.NODETYPE_COMMENT));
263 m_nodetests.put(NODETYPE_TEXT_STRING,
264 new Integer(OpCodes.NODETYPE_TEXT));
265 m_nodetests.put(NODETYPE_PI_STRING,
266 new Integer(OpCodes.NODETYPE_PI));
267 m_nodetests.put(NODETYPE_NODE_STRING,
268 new Integer(OpCodes.NODETYPE_NODE));
269 }
270
271 static Object getAxisName(String key){
272 return m_axisnames.get(key);
273 }
274
275 static Object lookupNodeTest(String key){
276 return m_nodetests.get(key);
277 }
278
279 static Object getKeyWord(String key){
280 return m_keywords.get(key);
281 }
282
283 static Object getNodeType(String key){
284 return m_nodetypes.get(key);
285 }
286 }