Home | History | Annotate | Download | only in parser
      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 */
     26 package gov.nist.javax.sip.parser;
     27 
     28 import gov.nist.javax.sip.header.*;
     29 import gov.nist.core.*;
     30 import 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  */
     42 public 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