ContentLanguageParser.java revision 600c7a4bbc7348167293eac928192e695b4ad5ba 
1/*
2* Conditions Of Use
3*
4* This software was developed by employees of the National Institute of
5* Standards and Technology (NIST), an agency of the Federal Government.
6* Pursuant to title 15 Untied States Code Section 105, works of NIST
7* employees are not subject to copyright protection in the United States
8* and are considered to be in the public domain.  As a result, a formal
9* license is not needed to use the software.
10*
11* This software is provided by NIST as a service and is expressly
12* provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
13* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
14* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
15* AND DATA ACCURACY.  NIST does not warrant or make any representations
16* regarding the use of the software or the results thereof, including but
17* not limited to the correctness, accuracy, reliability or usefulness of
18* the software.
19*
20* Permission to use this software is contingent upon your acceptance
21* of the terms of this agreement
22*
23* .
24*
25*/
26package gov.nist.javax.sip.parser;
27
28import gov.nist.javax.sip.header.*;
29import gov.nist.core.*;
30import java.text.ParseException;
31
32/**
33 * Parser for ContentLanguage header.
34 *
35 * @version 1.2 $Revision: 1.8 $ $Date: 2009/07/17 18:57:58 $
36 *
37 * @author Olivier Deruelle   <br/>
38 * @author M. Ranganathan   <br/>
39 *
40 *
41 */
42public class ContentLanguageParser extends HeaderParser {
43
44    /**
45     * Creates a new instance of ContentLanguageParser
46     * @param contentLanguage the header to parse
47     */
48    public ContentLanguageParser(String contentLanguage) {
49        super(contentLanguage);
50    }
51
52    /**
53     * Constructor
54     * @param lexer the lexer to use to parse the header
55     */
56    protected ContentLanguageParser(Lexer lexer) {
57        super(lexer);
58    }
59
60    /**
61     * parse the ContentLanguageHeader String header
62     * @return SIPHeader (ContentLanguageList object)
63     * @throws SIPParseException if the message does not respect the spec.
64     */
65    public SIPHeader parse() throws ParseException {
66
67        if (debug)
68            dbg_enter("ContentLanguageParser.parse");
69        ContentLanguageList list = new ContentLanguageList();
70
71        try {
72            headerName(TokenTypes.CONTENT_LANGUAGE);
73
74            while (lexer.lookAhead(0) != '\n') {
75                this.lexer.SPorHT();
76                this.lexer.match(TokenTypes.ID);
77
78                Token token = lexer.getNextToken();
79                ContentLanguage cl = new ContentLanguage( token.getTokenValue() );
80                this.lexer.SPorHT();
81                list.add(cl);
82
83                while (lexer.lookAhead(0) == ',') {
84                    this.lexer.match(',');
85                    this.lexer.SPorHT();
86                    this.lexer.match(TokenTypes.ID);
87                    this.lexer.SPorHT();
88                    token = lexer.getNextToken();
89                    cl = new ContentLanguage( token.getTokenValue() );
90                    this.lexer.SPorHT();
91                    list.add(cl);
92                }
93            }
94
95            return list;
96        } catch (ParseException ex) {
97            throw createParseException(ex.getMessage());
98        } finally {
99            if (debug)
100                dbg_leave("ContentLanguageParser.parse");
101        }
102    }
103
104
105}
106/*
107 * $Log: ContentLanguageParser.java,v $
108 * Revision 1.8  2009/07/17 18:57:58  emcho
109 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
110 *
111 * Revision 1.7  2006/07/13 09:02:24  mranga
112 * Issue number:
113 * Obtained from:
114 * Submitted by:  jeroen van bemmel
115 * Reviewed by:   mranga
116 * Moved some changes from jain-sip-1.2 to java.net
117 *
118 * CVS: ----------------------------------------------------------------------
119 * CVS: Issue number:
120 * CVS:   If this change addresses one or more issues,
121 * CVS:   then enter the issue number(s) here.
122 * CVS: Obtained from:
123 * CVS:   If this change has been taken from another system,
124 * CVS:   then name the system in this line, otherwise delete it.
125 * CVS: Submitted by:
126 * CVS:   If this code has been contributed to the project by someone else; i.e.,
127 * CVS:   they sent us a patch or a set of diffs, then include their name/email
128 * CVS:   address here. If this is your work then delete this line.
129 * CVS: Reviewed by:
130 * CVS:   If we are doing pre-commit code reviews and someone else has
131 * CVS:   reviewed your changes, include their name(s) here.
132 * CVS:   If you have not had it reviewed then delete this line.
133 *
134 * Revision 1.4  2006/06/19 06:47:27  mranga
135 * javadoc fixups
136 *
137 * Revision 1.3  2006/06/16 15:26:28  mranga
138 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
139 *
140 * Revision 1.2  2005/10/16 15:47:41  jeroen
141 * fixed language sub tag handling
142 *
143 * Revision 1.1.1.1  2005/10/04 17:12:35  mranga
144 *
145 * Import
146 *
147 *
148 * Revision 1.5  2004/07/28 14:13:55  mranga
149 * Submitted by:  mranga
150 *
151 * Move out the test code to a separate test/unit class.
152 * Fixed some encode methods.
153 *
154 * Revision 1.4  2004/01/22 13:26:31  sverker
155 * Issue number:
156 * Obtained from:
157 * Submitted by:  sverker
158 * Reviewed by:   mranga
159 *
160 * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
161 *
162 * CVS: ----------------------------------------------------------------------
163 * CVS: Issue number:
164 * CVS:   If this change addresses one or more issues,
165 * CVS:   then enter the issue number(s) here.
166 * CVS: Obtained from:
167 * CVS:   If this change has been taken from another system,
168 * CVS:   then name the system in this line, otherwise delete it.
169 * CVS: Submitted by:
170 * CVS:   If this code has been contributed to the project by someone else; i.e.,
171 * CVS:   they sent us a patch or a set of diffs, then include their name/email
172 * CVS:   address here. If this is your work then delete this line.
173 * CVS: Reviewed by:
174 * CVS:   If we are doing pre-commit code reviews and someone else has
175 * CVS:   reviewed your changes, include their name(s) here.
176 * CVS:   If you have not had it reviewed then delete this line.
177 *
178 */
179