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Java > Open Source Codes > org > htmlparser > visitors > StringFindingVisitor


1 // HTMLParser Library $Name: v1_5_20050313 $ - A java-based parser for HTML
2 // http://sourceforge.org/projects/htmlparser
3 // Copyright (C) 2004 Joshua Kerievsky
4 //
5 // Revision Control Information
6 //
7 // $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/visitors/StringFindingVisitor.java,v $
8 // $Author: derrickoswald $
9 // $Date: 2004/05/24 16:18:36 $
10 // $Revision: 1.40 $
11 //
12 // This library is free software; you can redistribute it and/or
13 // modify it under the terms of the GNU Lesser General Public
14 // License as published by the Free Software Foundation; either
15 // version 2.1 of the License, or (at your option) any later version.
16 //
17 // This library is distributed in the hope that it will be useful,
18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 // Lesser General Public License for more details.
21 //
22 // You should have received a copy of the GNU Lesser General Public
23 // License along with this library; if not, write to the Free Software
24 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 //
26
27 package org.htmlparser.visitors;
28
29 import java.util.Locale JavaDoc;
30
31 import org.htmlparser.Text;
32
33 public class StringFindingVisitor extends NodeVisitor
34 {
35     private String JavaDoc stringToFind;
36     private int foundCount;
37     private boolean multipleSearchesWithinStrings;
38     private Locale JavaDoc locale;
39
40     public StringFindingVisitor(String JavaDoc stringToFind)
41     {
42         this (stringToFind, null);
43     }
44
45     public StringFindingVisitor(String JavaDoc stringToFind, Locale JavaDoc locale)
46     {
47         this.locale = (null == locale) ? Locale.ENGLISH : locale;
48         this.stringToFind = stringToFind.toUpperCase (this.locale);
49         foundCount = 0;
50         multipleSearchesWithinStrings = false;
51     }
52
53     public void doMultipleSearchesWithinStrings()
54     {
55         multipleSearchesWithinStrings = true;
56     }
57
58     public void visitStringNode(Text stringNode)
59     {
60         String JavaDoc stringToBeSearched = stringNode.getText().toUpperCase(locale);
61         if (!multipleSearchesWithinStrings &&
62             stringToBeSearched.indexOf(stringToFind) != -1) {
63             foundCount++;
64         } else if (multipleSearchesWithinStrings) {
65             int index = -1;
66             do {
67                 index = stringToBeSearched.indexOf(stringToFind, index+1);
68                 if (index!=-1)
69                     foundCount++;
70             } while (index != -1);
71         }
72     }
73
74     public boolean stringWasFound()
75     {
76         return (0 != stringFoundCount());
77     }
78
79     public int stringFoundCount()
80     {
81         return foundCount;
82     }
83
84 }
85
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