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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <inputsequencechecker_th.hxx>
#include <wtt.h>
namespace i18npool {
InputSequenceChecker_th::InputSequenceChecker_th()
: InputSequenceCheckerImpl("com.sun.star.i18n.InputSequenceChecker_th")
{
}
InputSequenceChecker_th::~InputSequenceChecker_th()
{
}
/* Table for Thai Cell Manipulation */
char const TAC_celltype_inputcheck[17][17] = {
/* Cn */ /* 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F */
/* Cn-1 00 */{ 'X', 'A', 'A', 'A', 'A', 'A', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* 10 */{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* 20 */{ 'X', 'A', 'A', 'A', 'A', 'S', 'A', 'C', 'C', 'C', 'C', 'C', 'C', 'C', 'C', 'C', 'C' },
/* 30 */{ 'X', 'S', 'A', 'S', 'S', 'S', 'S', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* 40 */{ 'X', 'A', 'A', 'A', 'A', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* 50 */{ 'X', 'A', 'A', 'A', 'A', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* 60 */{ 'X', 'A', 'A', 'A', 'S', 'A', 'S', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* 70 */{ 'X', 'A', 'A', 'A', 'A', 'S', 'A', 'R', 'R', 'R', 'C', 'C', 'R', 'R', 'R', 'R', 'R' },
/* 80 */{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'C', 'R', 'R', 'R', 'R', 'R', 'R' },
/* 90 */{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* A0 */{ 'X', 'A', 'A', 'A', 'A', 'A', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* B0 */{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* C0 */{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* D0 */{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
/* E0 */{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'C', 'C', 'R', 'R', 'R', 'R', 'R' },
/* F0 */{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'C', 'R', 'R', 'R', 'R', 'R', 'R' },
{ 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'C', 'R', 'C', 'R', 'R', 'R', 'R' }
};
bool const TAC_Composible[3][5] = {
/* 'A', 'C', 'S', 'R', 'X' */
/* Mode 0 */ {true, true, true, true, true}, // PASSTHROUGH = 0
/* Mode 1 */ {true, true, true, false, true}, // BASIC = 1
/* Mode 2 */ {true, true, false, false, true} // STRICT = 2
};
static bool check(sal_Unicode ch1, sal_Unicode ch2, sal_Int16 inputCheckMode)
{
sal_Int16 composible_class;
switch (TAC_celltype_inputcheck[getCharType(ch1)][getCharType(ch2)]) {
case 'A': composible_class = 0; break;
case 'C': composible_class = 1; break;
case 'S': composible_class = 2; break;
case 'R': composible_class = 3; break;
case 'X': composible_class = 4; break;
default: composible_class = 0;
}
return (TAC_Composible[inputCheckMode][composible_class]);
}
sal_Bool SAL_CALL
InputSequenceChecker_th::checkInputSequence(const OUString& Text, sal_Int32 nStartPos,
sal_Unicode inputChar, sal_Int16 inputCheckMode)
{
return check(Text[nStartPos], inputChar, inputCheckMode);
}
sal_Int32 SAL_CALL
InputSequenceChecker_th::correctInputSequence(OUString& Text,
sal_Int32 nStartPos,
sal_Unicode inputChar,
sal_Int16 inputCheckMode)
{
/* 9 rules for input sequence correction, see issue i42661 for detail,
https://bz.apache.org/ooo/show_bug.cgi?id=42661
<abv> = <av1>|<av2>|<av3>|<bv1>|<bv2>
<abv1> = <av1>|<bv1>
<thanthakhat> = 0E4C (karan)
1. <cons> <abv>_x + <abv>_y => <cons> <abv>_y (replace)
2. <cons> <tone>_x + <tone>_y => <cons> <tone>_y (replace)
3. <cons> <abv> <tone>_x + <tone>_y => <cons> <abv> <tone>_y (replace)
4. <cons> <abv>_x <tone> + <abv>_y => <cons> <abv>_y <tone> (replace, reorder)
5. <cons> <tone> + <abv> => <cons> <abv> <tone> (reorder)
6. <cons> <fv1> + <tone> => <cons> <tone> <fv1> (reorder)
7. <cons> <tone>_x <fv1> + <tone>_y => <cons> <tone>_y <fv1> (replace, reorder)
8. <cons> <thanthakhat> + <abv1> => <cons> <abv1> <thanthakhat> (reorder)
9. <cons> <abv1>_x <thanthakhat> + <abv1>_y => <cons> <abv1>_y <thanthakhat>(reorder, replace)
*/
#define CT_ABV(t) ( (t>=CT_AV1 && t<=CT_AV3) || t==CT_BV1 || t==CT_BV2)
#define CT_ABV1(t) (t==CT_AV1 || t==CT_BV1)
if (check(Text[nStartPos], inputChar, inputCheckMode))
Text = Text.replaceAt(++nStartPos, 0, rtl::OUStringChar(inputChar));
else if (nStartPos > 0 && getCharType(Text[nStartPos-1]) == CT_CONS) {
sal_uInt16 t1=getCharType(Text[nStartPos]), t2=getCharType(inputChar);
if ( (CT_ABV(t1) && CT_ABV(t2)) || // 1.
(t1==CT_TONE && t2==CT_TONE) )// 2.
Text = Text.replaceAt(nStartPos, 1, rtl::OUStringChar(inputChar));
else if ( (t1==CT_TONE && CT_ABV(t2)) || // 5.
(t1==CT_FV1 && t2==CT_TONE) || // 6.
(Text[nStartPos]==0x0E4C && CT_ABV1(t2)) ) // 8.
Text = Text.replaceAt(nStartPos++, 0, rtl::OUStringChar(inputChar));
else
nStartPos=Text.getLength();
} else if (nStartPos > 1 && getCharType(Text[nStartPos-2]) == CT_CONS) {
sal_uInt16 t1=getCharType(Text[nStartPos-1]), t2=getCharType(Text[nStartPos]), t3=getCharType(inputChar);
if (CT_ABV(t1) && t2==CT_TONE && t3==CT_TONE) // 3.
Text = Text.replaceAt(nStartPos, 1, rtl::OUStringChar(inputChar));
else if ( (CT_ABV(t1) && t2==CT_TONE && CT_ABV(t3)) || // 4.
(t1==CT_TONE && t2==CT_FV1 && t3==CT_TONE) || // 7.
(CT_ABV1(t1) && Text[nStartPos]==0x0E4C && CT_ABV1(t3)) ) // 9.
Text = Text.replaceAt(nStartPos-1, 1, rtl::OUStringChar(inputChar));
else
nStartPos=Text.getLength();
} else
nStartPos=Text.getLength();
return nStartPos;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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