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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_hi.hxx>
namespace i18npool {
InputSequenceChecker_hi::InputSequenceChecker_hi()
: InputSequenceCheckerImpl("com.sun.star.i18n.InputSequenceChecker_hi")
{
}
InputSequenceChecker_hi::~InputSequenceChecker_hi()
{
}
/* Non-Defined Class type */
#define ND_ 0
/*
* Devanagari character type definitions
*/
#define UP_ 1 // ChandraBindu & Anuswar
#define NP_ 2 // Visarg
#define IV_ 3 // Independent Vowels
#define CN_ 4 // Consonants except _CK & _RC
#define CK_ 5 // Consonants that can be followed by Nukta
#define RC_ 6 // Ra
#define NM_ 7 // Matra
#define RM_ 8 // Ra + HAL
#define IM_ 9 // Choti I Matra
#define HL_ 10 // HAL
#define NK_ 11 // Nukta
#define VD_ 12 // Vedic
#define HD_ 13 // Hindu Numerals
/*
* Devanagari character type table
*/
const sal_uInt16 devaCT[128] = {
/* 0, 1, 2, 3, 4, 5, 6, 7,
8, 9, A, B, C, D, E, F, */
/* 0900 */ ND_, UP_, UP_, NP_, ND_, IV_, IV_, IV_,
IV_, IV_, IV_, IV_, IV_, IV_, IV_, IV_,
/* 0910 */ IV_, IV_, IV_, IV_, IV_, CK_, CK_, CK_,
CN_, CN_, CN_, CN_, CK_, CN_, CN_, CN_,
/* 0920 */ CN_, CK_, CK_, CN_, CN_, CN_, CN_, CN_,
CN_, CN_, CN_, CK_, CN_, CN_, CN_, CN_,
/* 0930 */ RC_, CN_, CN_, CN_, CN_, CN_, CN_, CN_,
CN_, CN_, ND_, ND_, NK_, VD_, NM_, IM_,
/* 0940 */ RM_, NM_, NM_, NM_, NM_, RM_, RM_, RM_,
RM_, RM_, RM_, RM_, RM_, HL_, ND_, ND_,
/* 0950 */ ND_, VD_, VD_, VD_, VD_, ND_, ND_, ND_,
CN_, CN_, CN_, CN_, CN_, CN_, CN_, CN_,
/* 0960 */ IV_, IV_, NM_, NM_, ND_, ND_, HD_, HD_,
HD_, HD_, HD_, HD_, HD_, HD_, HD_, HD_,
/* 0970 */ ND_, ND_, ND_, ND_, ND_, ND_, ND_, ND_,
ND_, ND_, ND_, ND_, ND_, ND_, ND_, ND_,
};
/*
* Devanagari character composition table
*/
const sal_uInt16 dev_cell_check[14][14] = {
/* ND, UP, NP, IV, CN, CK, RC, NM, RM, IM, HL, NK, VD, HD, */
/* 0 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* ND */
/* 1 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* UP */
/* 2 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* NP */
/* 3 */ { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* IV */
/* 4 */ { 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0 }, /* CN */
/* 5 */ { 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0 }, /* CK */
/* 6 */ { 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0 }, /* RC */
/* 7 */ { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* NM */
/* 8 */ { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* RM */
/* 9 */ { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* IM */
/* 10 */ { 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 }, /* HL */
/* 11 */ { 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0 }, /* NK */
/* 12 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* VD */
/* 13 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* HD */
};
bool const DEV_Composible[2][2] = {
/* Mode 0 */ {true, true }, // PASSTHROUGH = 0
/* Mode 1 */ {false, true} // STRICT = 1
};
static constexpr sal_uInt16 getCharType(sal_Unicode x)
{
return (x >= 0x0900 && x < 0x097f) ? devaCT[x - 0x0900] : ND_;
}
sal_Bool SAL_CALL
InputSequenceChecker_hi::checkInputSequence(const OUString& Text,
sal_Int32 nStartPos,
sal_Unicode inputChar,
sal_Int16 inputCheckMode)
{
sal_Unicode currentChar = Text[nStartPos];
sal_uInt16 ch1 = getCharType(inputChar);
sal_uInt16 ch2 = getCharType(currentChar);
return (DEV_Composible[inputCheckMode][dev_cell_check[ch2][ch1]]);
}
sal_Int32 SAL_CALL
InputSequenceChecker_hi::correctInputSequence(OUString& Text,
sal_Int32 nStartPos,
sal_Unicode inputChar,
sal_Int16 inputCheckMode)
{
if (checkInputSequence(Text, nStartPos, inputChar, inputCheckMode))
Text = Text.replaceAt(++nStartPos, 0, rtl::OUStringChar(inputChar));
else
nStartPos=Text.getLength();
return nStartPos;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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