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1
11 package org.eclipse.ui.internal.cheatsheets.views;
12
13 public class StringDelimitedTokenizer {
14
15 private String  str;
16 private String delimiter;
17 private int delimiterLength;
18 private int currentPosition;
19 private int maxPosition;
20
21 public StringDelimitedTokenizer(String str, String delim) {
22 currentPosition = 0;
23 this.str = str;
24 this.delimiter = delim;
25 maxPosition = this.str.length();
26 delimiterLength = this.delimiter.length();
27 }
28
29 public int countTokens() {
30 int count = 0;
31 int startPosition = 0;
32
33 while (startPosition < maxPosition && startPosition != -1) {
34 startPosition = str.indexOf(delimiter, startPosition);
35 if (startPosition != -1) {
36 startPosition += delimiterLength;
37 }
38 count++;
39 }
40
41 return count;
42 }
43
44 public boolean endsWithDelimiter() {
45 return str.endsWith(delimiter);
46 }
47
48 public boolean hasMoreTokens() {
49 return (currentPosition < maxPosition);
50 }
51
52 public String nextToken() {
53 int position = str.indexOf(delimiter, currentPosition);
54 String token = null;
55 if (position == -1) {
56 token = str.substring(currentPosition);
57 currentPosition = maxPosition;
58 } else {
59 token = str.substring(currentPosition, position);
60 currentPosition = position + delimiterLength;
61 }
62 return token;
63 }
64 }
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