001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.languages.php.lang;
043:
044: /**
045: * Constants.
046: *
047: * @author Victor G. Vasilyev
048: */
049: public enum Constants {
050: /**
051: * The constant <code>NULL</code>.
052: *
053: * <p>Note: PHP Manual considers it as a keyword, but not a constant.
054: * Nevertheless, it doesn't listed as a token in the <i>Appendix S. List of
055: * Parser Tokens</i>.</p>
056: * @see <a href="http://www.php.net/manual/en/language.types.null.php">
057: * PHP Manual / Part III. Language Reference / Chapter 11. Types / NULL</a>
058: */
059: NULL("NULL") {
060: boolean equals(String value) {
061: return value().equalsIgnoreCase(value);
062: }
063: },
064: /**
065: * The keyword TRUE to specify the boolean literal true.
066: * This keyword is case-insensitive.
067: * <p>Note: PHP Manual considers it as a keyword, but not a constant.
068: * Nevertheless, it doesn't listed as a token in the <i>Appendix S. List of
069: * Parser Tokens</i>.</p>
070: *
071: * @see <a href="http://www.php.net/manual/en/language.types.boolean.php">
072: * PHP Manual / Part III. Language Reference / Chapter 11. Types / Booleans</a>
073: */
074: TRUE("TRUE") {
075: boolean equals(String value) {
076: return value().equalsIgnoreCase(value);
077: }
078: },
079: /**
080: * The keyword FALSE to specify the boolean literal false.
081: * This keyword is case-insensitive.
082: * <p>Note: PHP Manual considers it as a keyword, but not a constant.
083: * Nevertheless, it doesn't listed as a token in the <i>Appendix S. List of
084: * Parser Tokens</i>.</p>
085: *
086: * @see <a href="http://www.php.net/manual/en/language.types.boolean.php">
087: * PHP Manual / Part III. Language Reference / Chapter 11. Types / Booleans</a>
088: */
089: FALSE("FALSE") {
090: boolean equals(String value) {
091: return value().equalsIgnoreCase(value);
092: }
093: },
094: ;
095:
096: Constants(String value) {
097: this .value = value;
098: }
099:
100: private final String value;
101:
102: public String value() {
103: return value;
104: }
105:
106: /**
107: * Tests if the specified <code>value</code> is the underlying
108: * constant.
109: *
110: * @param value any string, including <code>null</code> that will be tested.
111: * @return <code>true</code> if the specified string is the underlying
112: * <code>Constants</code>, otherwise - <code>false</code>.
113: */
114: abstract boolean equals(String value);
115:
116: }
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