001 /*
002 * Copyright (C) 2010 eXo Platform SAS.
003 *
004 * This is free software; you can redistribute it and/or modify it
005 * under the terms of the GNU Lesser General Public License as
006 * published by the Free Software Foundation; either version 2.1 of
007 * the License, or (at your option) any later version.
008 *
009 * This software is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * You should have received a copy of the GNU Lesser General Public
015 * License along with this software; if not, write to the Free
016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018 */
019
020 package org.crsh.cmdline.matcher.tokenizer;
021
022 /**
023 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
024 * @version $Revision$
025 */
026 public abstract class Token {
027
028
029 public final static class Whitespace extends Token {
030
031 Whitespace(int index, String raw) {
032 super(index, raw);
033 }
034
035 @Override
036 public boolean equals(Object obj) {
037 if (obj == this) {
038 return true;
039 }
040 if (obj instanceof Whitespace) {
041 Whitespace that = (Whitespace)obj;
042 return super.equals(obj) && index == that.index;
043 }
044 return false;
045 }
046
047 @Override
048 public String toString() {
049 return "Token.Whitespace[index=" + index + ",raw=" + raw + "]";
050 }
051 }
052
053 public abstract static class Literal extends Token {
054
055 public abstract static class Option extends Literal {
056
057 /** . */
058 private final String name;
059
060 public final String getName() {
061 return name;
062 }
063
064 Option(int index, String raw, String value, String name) {
065 super(index, raw, value);
066 this.name = name;
067 }
068
069 public final static class Short extends Option {
070 Short(int index, String raw, String value) {
071 super(index, raw, value, value.substring(1));
072 }
073 }
074
075 public final static class Long extends Option {
076 Long(int index, String raw, String value) {
077 super(index, raw, value, value.substring(2));
078 }
079 }
080 }
081
082 public final static class Word extends Literal {
083 Word(int index, String raw, String value) {
084 super(index, raw, value);
085 }
086
087 Word(int index, String value) {
088 super(index, value);
089 }
090 }
091
092 /** . */
093 final String value;
094
095 Literal(int index, String value) {
096 this(index, value, value);
097 }
098
099 Literal(int index, String raw, String value) {
100 super(index, raw);
101
102 if (value == null) {
103 throw new NullPointerException();
104 }
105
106 //
107 this.value = value;
108 }
109
110 public String getValue() {
111 return value;
112 }
113
114 @Override
115 public boolean equals(Object obj) {
116 if (obj == this) {
117 return true;
118 }
119 if (obj.getClass().equals(getClass())) {
120 Literal that = (Literal)obj;
121 return super.equals(obj) && index == that.index && value.equals(that.value);
122 }
123 return false;
124 }
125
126 @Override
127 public String toString() {
128 return getClass().getSimpleName() + "[index=" + index + ",raw=" + raw + ",value=" + value + "]";
129 }
130 }
131
132 /** The index in the containing sequence. */
133 final int index;
134
135 /** . */
136 final String raw;
137
138 Token(int index, String raw) {
139
140 if (index < 0) {
141 throw new IllegalArgumentException();
142 }
143 if (raw == null) {
144 throw new NullPointerException();
145 }
146
147 //
148 this.index = index;
149 this.raw = raw;
150 }
151
152 /**
153 * Returns the raw text.
154 *
155 * @return the raw text
156 */
157 public String getRaw() {
158 return raw;
159 }
160
161 /**
162 * Returns the from index is the containing string.
163 *
164 * @return the from index
165 */
166 public int getFrom() {
167 return index;
168 }
169
170 /**
171 * Returns the to index in the containing string.
172 *
173 * @return the to index
174 */
175 public int getTo() {
176 return index + raw.length();
177 }
178
179 @Override
180 public boolean equals(Object obj) {
181 if (obj == this) {
182 return true;
183 }
184 if (obj instanceof Token) {
185 Token that = (Token)obj;
186 return index == that.index && raw.equals(that.raw);
187 }
188 return false;
189 }
190 }