01: // htmlFilterAbstractTransformer.java
02: // ----------------------------------
03: // (C) by Michael Peter Christen; mc@anomic.de
04: // first published on http://www.anomic.de
05: // Frankfurt, Germany, 2004
06: // last major change: 18.02.2004
07: //
08: // This program is free software; you can redistribute it and/or modify
09: // it under the terms of the GNU General Public License as published by
10: // the Free Software Foundation; either version 2 of the License, or
11: // (at your option) any later version.
12: //
13: // This program is distributed in the hope that it will be useful,
14: // but WITHOUT ANY WARRANTY; without even the implied warranty of
15: // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: // GNU General Public License for more details.
17: //
18: // You should have received a copy of the GNU General Public License
19: // along with this program; if not, write to the Free Software
20: // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: //
22: // Using this software in any meaning (reading, learning, copying, compiling,
23: // running) means that you agree that the Author(s) is (are) not responsible
24: // for cost, loss of data or any harm that may be caused directly or indirectly
25: // by usage of this softare or this documentation. The usage of this software
26: // is on your own risk. The installation and usage (starting/running) of this
27: // software may allow other people or application to access your computer and
28: // any attached devices and is highly dependent on the configuration of the
29: // software which must be done by the user of the software; the author(s) is
30: // (are) also not responsible for proper configuration and usage of the
31: // software, even if provoked by documentation provided together with
32: // the software.
33: //
34: // Any changes to this file according to the GPL as documented in the file
35: // gpl.txt aside this file in the shipment you received can be done to the
36: // lines that follows this copyright notice here, but changes must not be
37: // done inside the copyright notive above. A re-distribution must contain
38: // the intact and unchanged copyright notice.
39: // Contributions and changes to the program code must be marked as such.
40:
41: package de.anomic.htmlFilter;
42:
43: import java.util.Properties;
44: import java.util.TreeSet;
45:
46: public abstract class htmlFilterAbstractTransformer implements
47: htmlFilterTransformer {
48:
49: private TreeSet<String> tags0;
50: private TreeSet<String> tags1;
51:
52: public htmlFilterAbstractTransformer(TreeSet<String> tags0,
53: TreeSet<String> tags1) {
54: this .tags0 = tags0;
55: this .tags1 = tags1;
56: }
57:
58: public boolean isTag0(String tag) {
59: return tags0.contains(tag);
60: }
61:
62: public boolean isTag1(String tag) {
63: return tags1.contains(tag);
64: }
65:
66: //the 'missing' method that shall be implemented:
67: public abstract char[] transformText(char[] text);
68:
69: /* could be easily implemented as:
70: {
71: return text;
72: }
73: */
74:
75: // the other methods must take into account to construct the return value correctly
76: public char[] transformTag0(String tagname, Properties tagopts,
77: char quotechar) {
78: return htmlFilterWriter.genTag0(tagname, tagopts, quotechar);
79: }
80:
81: public char[] transformTag1(String tagname, Properties tagopts,
82: char[] text, char quotechar) {
83: return htmlFilterWriter.genTag1(tagname, tagopts, text,
84: quotechar);
85: }
86:
87: public void close() {
88: // free resources
89: tags0 = null;
90: tags1 = null;
91: }
92:
93: public void finalize() {
94: close();
95: }
96:
97: }
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