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/** 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 */ 41public 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