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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 :
21 : #include <inputsequencechecker_hi.hxx>
22 :
23 : using ::rtl::OUString;
24 :
25 : namespace com {
26 : namespace sun {
27 : namespace star {
28 : namespace i18n {
29 :
30 0 : InputSequenceChecker_hi::InputSequenceChecker_hi()
31 : {
32 0 : serviceName = "com.sun.star.i18n.InputSequenceChecker_hi";
33 0 : }
34 :
35 0 : InputSequenceChecker_hi::~InputSequenceChecker_hi()
36 : {
37 0 : }
38 : /* Non-Defined Class type */
39 : #define __ND 0
40 :
41 : /*
42 : * Devanagari character type definitions
43 : */
44 : #define __UP 1 // ChandraBindu & Anuswar
45 : #define __NP 2 // Visarg
46 : #define __IV 3 // Independant Vowels
47 : #define __CN 4 // Consonants except _CK & _RC
48 : #define __CK 5 // Consonants that can be followed by Nukta
49 : #define __RC 6 // Ra
50 : #define __NM 7 // Matra
51 : #define __RM 8 // Ra + HAL
52 : #define __IM 9 // Choti I Matra
53 : #define __HL 10 // HAL
54 : #define __NK 11 // Nukta
55 : #define __VD 12 // Vedic
56 : #define __HD 13 // Hindu Numerals
57 :
58 : /*
59 : * Devanagari character type table
60 : */
61 : static const sal_uInt16 devaCT[128] = {
62 : /* 0, 1, 2, 3, 4, 5, 6, 7,
63 : 8, 9, A, B, C, D, E, F, */
64 : /* 0900 */ __ND, __UP, __UP, __NP, __ND, __IV, __IV, __IV,
65 : __IV, __IV, __IV, __IV, __IV, __IV, __IV, __IV,
66 : /* 0910 */ __IV, __IV, __IV, __IV, __IV, __CK, __CK, __CK,
67 : __CN, __CN, __CN, __CN, __CK, __CN, __CN, __CN,
68 : /* 0920 */ __CN, __CK, __CK, __CN, __CN, __CN, __CN, __CN,
69 : __CN, __CN, __CN, __CK, __CN, __CN, __CN, __CN,
70 : /* 0930 */ __RC, __CN, __CN, __CN, __CN, __CN, __CN, __CN,
71 : __CN, __CN, __ND, __ND, __NK, __VD, __NM, __IM,
72 : /* 0940 */ __RM, __NM, __NM, __NM, __NM, __RM, __RM, __RM,
73 : __RM, __RM, __RM, __RM, __RM, __HL, __ND, __ND,
74 : /* 0950 */ __ND, __VD, __VD, __VD, __VD, __ND, __ND, __ND,
75 : __CN, __CN, __CN, __CN, __CN, __CN, __CN, __CN,
76 : /* 0960 */ __IV, __IV, __NM, __NM, __ND, __ND, __HD, __HD,
77 : __HD, __HD, __HD, __HD, __HD, __HD, __HD, __HD,
78 : /* 0970 */ __ND, __ND, __ND, __ND, __ND, __ND, __ND, __ND,
79 : __ND, __ND, __ND, __ND, __ND, __ND, __ND, __ND,
80 : };
81 :
82 : /*
83 : * Devanagari character composition table
84 : */
85 : static const sal_uInt16 dev_cell_check[14][14] = {
86 : /* ND, UP, NP, IV, CN, CK, RC, NM, RM, IM, HL, NK, VD, HD, */
87 : /* 0 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* ND */
88 : /* 1 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* UP */
89 : /* 2 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* NP */
90 : /* 3 */ { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* IV */
91 : /* 4 */ { 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0 }, /* CN */
92 : /* 5 */ { 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0 }, /* CK */
93 : /* 6 */ { 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0 }, /* RC */
94 : /* 7 */ { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* NM */
95 : /* 8 */ { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* RM */
96 : /* 9 */ { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* IM */
97 : /* 10 */ { 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 }, /* HL */
98 : /* 11 */ { 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0 }, /* NK */
99 : /* 12 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* VD */
100 : /* 13 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* HD */
101 : };
102 :
103 : sal_Bool _DEV_Composible[2][2] = {
104 : /* Mode 0 */ {sal_True, sal_True }, // PASSTHROUGH = 0
105 : /* Mode 1 */ {sal_False, sal_True} // STRICT = 1
106 : };
107 :
108 : #define getCharType(x) \
109 : ((x >= 0x0900 && x < 0x097f) ? devaCT[x - 0x0900] : __ND)
110 :
111 : sal_Bool SAL_CALL
112 0 : InputSequenceChecker_hi::checkInputSequence(const OUString& Text,
113 : sal_Int32 nStartPos,
114 : sal_Unicode inputChar,
115 : sal_Int16 inputCheckMode)
116 : throw(com::sun::star::uno::RuntimeException)
117 : {
118 0 : sal_Unicode currentChar = Text[nStartPos];
119 0 : sal_uInt16 ch1 = getCharType(inputChar);
120 0 : sal_uInt16 ch2 = getCharType(currentChar);
121 :
122 0 : return (_DEV_Composible[inputCheckMode][dev_cell_check[ch2][ch1]]);
123 : }
124 :
125 : sal_Int32 SAL_CALL
126 0 : InputSequenceChecker_hi::correctInputSequence(OUString& Text,
127 : sal_Int32 nStartPos,
128 : sal_Unicode inputChar,
129 : sal_Int16 inputCheckMode)
130 : throw(com::sun::star::uno::RuntimeException)
131 : {
132 0 : if (checkInputSequence(Text, nStartPos, inputChar, inputCheckMode))
133 0 : Text = Text.replaceAt(++nStartPos, 0, OUString(inputChar));
134 : else
135 0 : nStartPos=Text.getLength();
136 0 : return nStartPos;
137 : }
138 : } } } }
139 :
140 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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