1 /*
2 Java Regular Expressions Plugin API
3
4 Copyright (C) 2002 Jose San Leandro Armend?riz
5 jsanleandro@yahoo.es
6 chousz@yahoo.com
7
8 This library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
12
13 This library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public
19 License along with this library; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21
22 Thanks to ACM S.L. for distributing this library under the LGPL license.
23 Contact info: jsr000@terra.es
24 Postal Address: c/Playa de Lagoa, 1
25 Urb. Valdecaba?as
26 Boadilla del monte
27 28660 Madrid
28 Spain
29
30 This library uses some external APIs. So far I haven't released such
31 APIs as projects themselves, but you should be able
32 to download them from the web page where you got this source code.
33
34 ******************************************************************************
35 *
36 * Filename: $RCSfile: MatcherRegexpAdapter.java,v $
37 *
38 * Author: Jose San Leandro Armend?riz
39 *
40 * Description: Represents the result of match in a regexp parsing
41 * process using Jakarta Regexp package.
42 *
43 * Last modified by: $Author: dev $ at $Date: 2002/09/27 08:27:17 $
44 *
45 * File version: $Revision: 1.5 $
46 *
47 * Project version: $Name: $
48 * ("Name" means no concrete version has been checked out)
49 *
50 * $Id: MatcherRegexpAdapter.java,v 1.5 2002/09/27 08:27:17 dev Exp $
51 *
52 */
53 package org.acmsl.regexpplugin.jakartaregexp;
54
55 /*
56 * Importing some project-specific classes.
57 */
58 import org.acmsl.regexpplugin.Matcher;
59 import org.acmsl.regexpplugin.MatchResult;
60 import org.acmsl.regexpplugin.Pattern;
61
62 /*
63 * Importing some ACM classes.
64 */
65 import org.acmsl.version.Version;
66 import org.acmsl.version.VersionFactory;
67
68 /*
69 * Importing some Jakarta Regexp classes.
70 */
71 import org.apache.regexp.RE;
72 import org.apache.regexp.REProgram;
73
74 /***
75 * Represents the result of match in a regexp parsing process using
76 * Jakarta Regexp package.
77 * @author <a href="mailto:jsanleandro@yahoo.es"
78 >Jose San Leandro Armend?riz</a>
79 * @version $Revision: 1.5 $
80 */
81 public class MatcherRegexpAdapter
82 implements Matcher
83 {
84 /***
85 * Private RE reference.
86 */
87 private RE m__RE;
88
89 /***
90 * Constructs an empty REMatcherRegexpAdapter.
91 */
92 public MatcherRegexpAdapter() {};
93
94 /***
95 * Sets the instance to adapt.
96 * @param adaptee the re object to adapt.
97 */
98 protected void setAdaptee(RE adaptee)
99 {
100 m__RE = adaptee;
101 }
102
103 /***
104 * Retrieves the adapted instance.
105 * @return the RE object.
106 */
107 public RE getAdaptee()
108 {
109 return m__RE;
110 }
111
112 /***
113 * Checks if given text contains specified pattern.
114 * @param text the text to analyze.
115 * @param pattern the regular expression to apply.
116 * @return true if the pattern is found.
117 */
118 public boolean contains(String text, Pattern pattern)
119 {
120 boolean result = false;
121
122 if ( (pattern != null)
123 && (pattern instanceof PatternRegexpAdapter))
124 {
125 PatternRegexpAdapter t_PatternAdapter =
126 (PatternRegexpAdapter) pattern;
127
128 setAdaptee(t_PatternAdapter.getRE());
129
130 if (getAdaptee() != null)
131 {
132 result = getAdaptee().match(text);
133 }
134 }
135
136 return result;
137 }
138
139 /***
140 * Retrieves the last match found due to a previous call to
141 * <i>contains</i> method.
142 * @return such match result.
143 */
144 public MatchResult getMatch()
145 {
146 MatchResult result = null;
147
148 if (getAdaptee() != null)
149 {
150 result = new MatchResultRegexpAdapter(getAdaptee());
151 }
152
153 return result;
154 }
155
156 /***
157 * Concrete version object updated everytime it's checked-in in a CVS
158 * repository.
159 */
160 public static final Version VERSION =
161 VersionFactory.createVersion("$Revision: 1.5 $");
162
163 /***
164 * Retrieves the current version of this object.
165 * @return the version object with such information.
166 */
167 public Version getVersion()
168 {
169 return VERSION;
170 }
171
172 /***
173 * Retrieves the current version of this class.
174 * @return the object with class version information.
175 */
176 public static Version getClassVersion()
177 {
178 return VERSION;
179 }
180 }
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