1/*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.  Oracle designates this
7 * particular file as subject to the "Classpath" exception as provided
8 * by Oracle in the LICENSE file that accompanied this code.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26/*
27 * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved
28 *
29 */
30
31#ifndef __DEFAULTCHARMAPPER_H
32#define __DEFAULTCHARMAPPER_H
33
34/**
35 * \file
36 * \internal
37 */
38
39#include "LETypes.h"
40#include "LEFontInstance.h"
41
42U_NAMESPACE_BEGIN
43
44/**
45 * This class is an instance of LECharMapper which
46 * implements control character filtering and bidi
47 * mirroring.
48 *
49 * @see LECharMapper
50 */
51class DefaultCharMapper : public UMemory, public LECharMapper
52{
53private:
54    le_bool fFilterControls;
55    le_bool fMirror;
56    le_bool fZWJ;
57
58    static const LEUnicode32 controlChars[];
59
60    static const le_int32 controlCharsCount;
61
62    static const LEUnicode32 controlCharsZWJ[];
63
64    static const le_int32 controlCharsZWJCount;
65
66    static const LEUnicode32 mirroredChars[];
67    static const LEUnicode32 srahCderorrim[];
68
69    static const le_int32 mirroredCharsCount;
70
71public:
72    DefaultCharMapper(le_bool filterControls, le_bool mirror, le_bool zwj = 0)
73        : fFilterControls(filterControls), fMirror(mirror), fZWJ(zwj)
74    {
75        // nothing
76    };
77
78    ~DefaultCharMapper()
79    {
80        // nada
81    };
82
83    LEUnicode32 mapChar(LEUnicode32 ch) const;
84};
85
86U_NAMESPACE_END
87#endif
88