- /*
- * The Apache Software License, Version 1.1
- *
- *
- * Copyright (c) 1999 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 "Xalan" 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, Lotus
- * Development Corporation., http://www.lotus.com. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- package org.apache.xpath.compiler;
-
- import java.util.Hashtable;
-
- /**
- * <meta name="usage" content="internal"/>
- * Table of strings to operation code lookups.
- */
- public class Keywords
- {
-
- /** Table of keywords to opcode associations. */
- static Hashtable m_keywords = new Hashtable();
-
- /** Table of axes names to opcode associations. */
- static Hashtable m_axisnames = new Hashtable();
-
- /** Table of function name to function ID associations. */
- static Hashtable m_functions = new Hashtable();
-
- /** Table of node type strings to opcode associations. */
- 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. */
- private static final String FUNC_CURRENT_STRING = "current";
-
- /** last function string. */
- private static final String FUNC_LAST_STRING = "last";
-
- /** position function string. */
- private static final String FUNC_POSITION_STRING = "position";
-
- /** count function string. */
- private 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. */
- private static final String FUNC_LOCAL_PART_STRING = "local-name";
-
- /** namespace-uri function string. */
- private static final String FUNC_NAMESPACE_STRING = "namespace-uri";
-
- /** name function string. */
- private static final String FUNC_NAME_STRING = "name";
-
- /** generate-id function string (XSLT). */
- private static final String FUNC_GENERATE_ID_STRING = "generate-id";
-
- /** not function string. */
- private static final String FUNC_NOT_STRING = "not";
-
- /** true function string. */
- private static final String FUNC_TRUE_STRING = "true";
-
- /** false function string. */
- private static final String FUNC_FALSE_STRING = "false";
-
- /** boolean function string. */
- private static final String FUNC_BOOLEAN_STRING = "boolean";
-
- /** lang function string. */
- private static final String FUNC_LANG_STRING = "lang";
-
- /** number function string. */
- private static final String FUNC_NUMBER_STRING = "number";
-
- /** floor function string. */
- private static final String FUNC_FLOOR_STRING = "floor";
-
- /** ceiling function string. */
- private static final String FUNC_CEILING_STRING = "ceiling";
-
- /** round function string. */
- private static final String FUNC_ROUND_STRING = "round";
-
- /** sum function string. */
- private static final String FUNC_SUM_STRING = "sum";
-
- /** string function string. */
- private static final String FUNC_STRING_STRING = "string";
-
- /** starts-with function string. */
- private static final String FUNC_STARTS_WITH_STRING = "starts-with";
-
- /** contains function string. */
- private static final String FUNC_CONTAINS_STRING = "contains";
-
- /** substring-before function string. */
- private static final String FUNC_SUBSTRING_BEFORE_STRING =
- "substring-before";
-
- /** substring-after function string. */
- private static final String FUNC_SUBSTRING_AFTER_STRING = "substring-after";
-
- /** normalize-space function string. */
- private static final String FUNC_NORMALIZE_SPACE_STRING = "normalize-space";
-
- /** translate function string. */
- private static final String FUNC_TRANSLATE_STRING = "translate";
-
- /** concat function string. */
- private static final String FUNC_CONCAT_STRING = "concat";
-
- /** system-property function string. */
- private static final String FUNC_SYSTEM_PROPERTY_STRING = "system-property";
-
- /** function-available function string (XSLT). */
- private static final String FUNC_EXT_FUNCTION_AVAILABLE_STRING =
- "function-available";
-
- /** element-available function string (XSLT). */
- private static final String FUNC_EXT_ELEM_AVAILABLE_STRING =
- "element-available";
-
- /** substring function string. */
- private static final String FUNC_SUBSTRING_STRING = "substring";
-
- /** string-length function string. */
- private static final String FUNC_STRING_LENGTH_STRING = "string-length";
-
- /** unparsed-entity-uri function string (XSLT). */
- private static final String FUNC_UNPARSED_ENTITY_URI_STRING =
- "unparsed-entity-uri";
-
- // Proprietary, built in functions
-
- /** current function string (Proprietary). */
- private 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_functions.put(FUNC_CURRENT_STRING,
- new Integer(FunctionTable.FUNC_CURRENT));
- m_functions.put(FUNC_LAST_STRING,
- new Integer(FunctionTable.FUNC_LAST));
- m_functions.put(FUNC_POSITION_STRING,
- new Integer(FunctionTable.FUNC_POSITION));
- m_functions.put(FUNC_COUNT_STRING,
- new Integer(FunctionTable.FUNC_COUNT));
- m_functions.put(FUNC_ID_STRING,
- new Integer(FunctionTable.FUNC_ID));
- m_functions.put(FUNC_KEY_STRING,
- new Integer(FunctionTable.FUNC_KEY));
- m_functions.put(FUNC_LOCAL_PART_STRING,
- new Integer(FunctionTable.FUNC_LOCAL_PART));
- m_functions.put(FUNC_NAMESPACE_STRING,
- new Integer(FunctionTable.FUNC_NAMESPACE));
- m_functions.put(FUNC_NAME_STRING,
- new Integer(FunctionTable.FUNC_QNAME));
- m_functions.put(FUNC_GENERATE_ID_STRING,
- new Integer(FunctionTable.FUNC_GENERATE_ID));
- m_functions.put(FUNC_NOT_STRING,
- new Integer(FunctionTable.FUNC_NOT));
- m_functions.put(FUNC_TRUE_STRING,
- new Integer(FunctionTable.FUNC_TRUE));
- m_functions.put(FUNC_FALSE_STRING,
- new Integer(FunctionTable.FUNC_FALSE));
- m_functions.put(FUNC_BOOLEAN_STRING,
- new Integer(FunctionTable.FUNC_BOOLEAN));
- m_functions.put(FUNC_LANG_STRING,
- new Integer(FunctionTable.FUNC_LANG));
- m_functions.put(FUNC_NUMBER_STRING,
- new Integer(FunctionTable.FUNC_NUMBER));
- m_functions.put(FUNC_FLOOR_STRING,
- new Integer(FunctionTable.FUNC_FLOOR));
- m_functions.put(FUNC_CEILING_STRING,
- new Integer(FunctionTable.FUNC_CEILING));
- m_functions.put(FUNC_ROUND_STRING,
- new Integer(FunctionTable.FUNC_ROUND));
- m_functions.put(FUNC_SUM_STRING,
- new Integer(FunctionTable.FUNC_SUM));
- m_functions.put(FUNC_STRING_STRING,
- new Integer(FunctionTable.FUNC_STRING));
- m_functions.put(FUNC_STARTS_WITH_STRING,
- new Integer(FunctionTable.FUNC_STARTS_WITH));
- m_functions.put(FUNC_CONTAINS_STRING,
- new Integer(FunctionTable.FUNC_CONTAINS));
- m_functions.put(FUNC_SUBSTRING_BEFORE_STRING,
- new Integer(FunctionTable.FUNC_SUBSTRING_BEFORE));
- m_functions.put(FUNC_SUBSTRING_AFTER_STRING,
- new Integer(FunctionTable.FUNC_SUBSTRING_AFTER));
- m_functions.put(FUNC_NORMALIZE_SPACE_STRING,
- new Integer(FunctionTable.FUNC_NORMALIZE_SPACE));
- m_functions.put(FUNC_TRANSLATE_STRING,
- new Integer(FunctionTable.FUNC_TRANSLATE));
- m_functions.put(FUNC_CONCAT_STRING,
- new Integer(FunctionTable.FUNC_CONCAT));
-
- //m_functions.put(FUNC_FORMAT_NUMBER_STRING, new Integer(FunctionTable.FUNC_FORMAT_NUMBER));
- m_functions.put(FUNC_SYSTEM_PROPERTY_STRING,
- new Integer(FunctionTable.FUNC_SYSTEM_PROPERTY));
- m_functions.put(FUNC_EXT_FUNCTION_AVAILABLE_STRING,
- new Integer(FunctionTable.FUNC_EXT_FUNCTION_AVAILABLE));
- m_functions.put(FUNC_EXT_ELEM_AVAILABLE_STRING,
- new Integer(FunctionTable.FUNC_EXT_ELEM_AVAILABLE));
- m_functions.put(FUNC_SUBSTRING_STRING,
- new Integer(FunctionTable.FUNC_SUBSTRING));
- m_functions.put(FUNC_STRING_LENGTH_STRING,
- new Integer(FunctionTable.FUNC_STRING_LENGTH));
- m_functions.put(FUNC_UNPARSED_ENTITY_URI_STRING,
- new Integer(FunctionTable.FUNC_UNPARSED_ENTITY_URI));
-
- // These aren't really functions.
- m_functions.put(NODETYPE_COMMENT_STRING,
- new Integer(OpCodes.NODETYPE_COMMENT));
- m_functions.put(NODETYPE_TEXT_STRING,
- new Integer(OpCodes.NODETYPE_TEXT));
- m_functions.put(NODETYPE_PI_STRING,
- new Integer(OpCodes.NODETYPE_PI));
- m_functions.put(NODETYPE_NODE_STRING,
- new Integer(OpCodes.NODETYPE_NODE));
- m_functions.put(FUNC_DOCLOCATION_STRING,
- new Integer(FunctionTable.FUNC_DOCLOCATION));
- }
-
- /**
- * Tell if a built-in, non-namespaced function is available.
- *
- * @param methName The local name of the function.
- *
- * @return True if the function can be executed.
- */
- public static boolean functionAvailable(String methName)
- {
-
- try
- {
- Object tblEntry = m_functions.get(methName);
-
- if (null == tblEntry)
- return false;
-
- int funcType = ((Integer) tblEntry).intValue();
-
- switch (funcType)
- {
- case OpCodes.NODETYPE_COMMENT :
- case OpCodes.NODETYPE_TEXT :
- case OpCodes.NODETYPE_PI :
- case OpCodes.NODETYPE_NODE :
- return false; // These look like functions but they're NodeTests.
- default :
- return true;
- }
- }
- catch (Exception e)
- {
- return false;
- }
- }
- }