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      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 /** parameters parser header.
     33  *
     34  * @version 1.2 $Revision: 1.10 $ $Date: 2009/07/17 18:58:01 $
     35  *
     36  * @author M. Ranganathan   <br/>
     37  *
     38  *
     39  *
     40  */
     41 public abstract class ParametersParser extends HeaderParser {
     42 
     43     protected ParametersParser(Lexer lexer) {
     44         super((Lexer) lexer);
     45     }
     46 
     47     protected ParametersParser(String buffer) {
     48         super(buffer);
     49     }
     50 
     51     protected void parse(ParametersHeader parametersHeader)
     52         throws ParseException {
     53         this.lexer.SPorHT();
     54         while (lexer.lookAhead(0) == ';') {
     55             this.lexer.consume(1);
     56             // eat white space
     57             this.lexer.SPorHT();
     58             NameValue nv = nameValue();
     59             parametersHeader.setParameter(nv);
     60             // eat white space
     61             this.lexer.SPorHT();
     62         }
     63     }
     64 
     65 
     66 
     67     protected void parseNameValueList(ParametersHeader parametersHeader)
     68         throws ParseException{
     69         parametersHeader.removeParameters();
     70         while (true) {
     71                 this.lexer.SPorHT();
     72             NameValue nv = nameValue();
     73             parametersHeader.setParameter(nv.getName(), (String) nv.getValueAsObject());
     74             // eat white space
     75             this.lexer.SPorHT();
     76             if (lexer.lookAhead(0) != ';')  break;
     77             else lexer.consume(1);
     78         }
     79     }
     80 }
     81