public EscapedStringTokenizer(String strTobeSplit, char delim) { private int nextDelimPosition(){ public boolean hasMoreElements() { public Object nextElement() {| EscapedStringTokenizer | Line # 62 | 29 | 11 | 98% |
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| 1 | /* | |
| 2 | * EscapedStringTokenizer.java | |
| 3 | * | |
| 4 | * Created on 2006/12/16, 5:41pm | |
| 5 | * | |
| 6 | * Copyright (c) 2006, University of Kent | |
| 7 | * All rights reserved. | |
| 8 | * | |
| 9 | * Redistribution and use in source and binary forms, with or without | |
| 10 | * modification, are permitted provided that the following conditions are met: | |
| 11 | * | |
| 12 | * Redistributions of source code must retain the above copyright notice, this | |
| 13 | * list of conditions and the following disclaimer. | |
| 14 | * | |
| 15 | * Redistributions in binary form must reproduce the above copyright notice, | |
| 16 | * this list of conditions and the following disclaimer in the documentation | |
| 17 | * and/or other materials provided with the distribution. | |
| 18 | * | |
| 19 | * 1. Neither the name of the University of Kent nor the names of its | |
| 20 | * contributors may be used to endorse or promote products derived from this | |
| 21 | * software without specific prior written permission. | |
| 22 | * | |
| 23 | * 2. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
| 24 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
| 25 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 26 | * PURPOSE ARE DISCLAIMED. | |
| 27 | * | |
| 28 | * 3. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
| 29 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 35 | * POSSIBILITY OF SUCH DAMAGE. | |
| 36 | * | |
| 37 | * 4. YOU AGREE THAT THE EXCLUSIONS IN PARAGRAPHS 2 AND 3 ABOVE ARE REASONABLE | |
| 38 | * IN THE CIRCUMSTANCES. IN PARTICULAR, YOU ACKNOWLEDGE (1) THAT THIS | |
| 39 | * SOFTWARE HAS BEEN MADE AVAILABLE TO YOU FREE OF CHARGE, (2) THAT THIS | |
| 40 | * SOFTWARE IS NOT "PRODUCT" QUALITY, BUT HAS BEEN PRODUCED BY A RESEARCH | |
| 41 | * GROUP WHO DESIRE TO MAKE THIS SOFTWARE FREELY AVAILABLE TO PEOPLE WHO WISH | |
| 42 | * TO USE IT, AND (3) THAT BECAUSE THIS SOFTWARE IS NOT OF "PRODUCT" QUALITY | |
| 43 | * IT IS INEVITABLE THAT THERE WILL BE BUGS AND ERRORS, AND POSSIBLY MORE | |
| 44 | * SERIOUS FAULTS, IN THIS SOFTWARE. | |
| 45 | * | |
| 46 | * 5. This license is governed, except to the extent that local laws | |
| 47 | * necessarily apply, by the laws of England and Wales. | |
| 48 | * | |
| 49 | * Author : Gansen Zhao | |
| 50 | * Email: gz7@kent.ac.uk | |
| 51 | * | |
| 52 | */ | |
| 53 | ||
| 54 | package issrg.pba.rbac.xmlpolicy; | |
| 55 | ||
| 56 | import java.util.Enumeration; | |
| 57 | ||
| 58 | /** | |
| 59 | * | |
| 60 | * @author gansen | |
| 61 | */ | |
| 62 | public class EscapedStringTokenizer implements Enumeration{ | |
| 63 | ||
| 64 | String m_str; | |
| 65 | char m_delim; | |
| 66 | int m_curpos; | |
| 67 | /** Creates a new instance of EscapedStringTokenizer */ | |
| 68 | 181 |
public EscapedStringTokenizer(String strTobeSplit, char delim) { |
| 69 | 181 | m_str=strTobeSplit; |
| 70 | 181 | m_delim=delim; |
| 71 | 181 | m_curpos=0; |
| 72 | } | |
| 73 | ||
| 74 | 575 |
private int nextDelimPosition(){ |
| 75 | ||
| 76 | ||
| 77 | 575 | boolean bIsOddAppearance=false; |
| 78 | 575 | boolean bNonDelim=false; |
| 79 | ||
| 80 | //check from current position to find the next delim. | |
| 81 | 3903 | for(int i=m_curpos;i<m_str.length();i++) |
| 82 | 3360 | if(m_str.charAt(i)==m_delim){ |
| 83 | 46 | bIsOddAppearance=!bIsOddAppearance; |
| 84 | 3314 | }else if(bIsOddAppearance==true){ |
| 85 | // we have found a odd number of delims, and its's also the end of the delim sequences | |
| 86 | //thus the current position is the end. | |
| 87 | 32 | return i; |
| 88 | } | |
| 89 | 543 | return m_str.length(); |
| 90 | } | |
| 91 | ||
| 92 | 378 |
public boolean hasMoreElements() { |
| 93 | ||
| 94 | 378 | int i =0; |
| 95 | 378 | i = this.nextDelimPosition(); |
| 96 | 378 | if(i>this.m_curpos) |
| 97 | 197 | return true; |
| 98 | 181 | return false; |
| 99 | } | |
| 100 | ||
| 101 | 197 |
public Object nextElement() { |
| 102 | ||
| 103 | 197 | Object obj=null; |
| 104 | 197 | boolean bIsOddAppearance=false; |
| 105 | ||
| 106 | 197 | int next = this.nextDelimPosition(); |
| 107 | ||
| 108 | 197 | String nextE=""; |
| 109 | ||
| 110 | 1861 | for(int i = this.m_curpos; i<next; i++){ |
| 111 | 1664 | if(m_str.charAt(i)!=m_delim) |
| 112 | 1641 | if((this.m_curpos>0)&&(i == this.m_curpos)&&(m_str.charAt(i)==' ')){//if the first charactor is white space |
| 113 | //do nothing here | |
| 114 | }else{//otherwise | |
| 115 | 1641 | nextE=nextE+m_str.charAt(i); |
| 116 | } | |
| 117 | else{ | |
| 118 | 23 | bIsOddAppearance=!bIsOddAppearance; |
| 119 | 23 | if(bIsOddAppearance==false) |
| 120 | 2 | nextE=nextE+m_str.charAt(i); |
| 121 | } | |
| 122 | } | |
| 123 | ||
| 124 | ||
| 125 | 197 | this.m_curpos=next; |
| 126 | 197 | return obj=nextE; |
| 127 | ||
| 128 | } | |
| 129 | ||
| 130 | ||
| 131 | ||
| 132 | } | |
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