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Diffstat (limited to 'i18npool/source/inputchecker/inputsequencechecker_hi.cxx')
| -rw-r--r-- | i18npool/source/inputchecker/inputsequencechecker_hi.cxx | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/i18npool/source/inputchecker/inputsequencechecker_hi.cxx b/i18npool/source/inputchecker/inputsequencechecker_hi.cxx new file mode 100644 index 000000000..b1f9e99f6 --- /dev/null +++ b/i18npool/source/inputchecker/inputsequencechecker_hi.cxx @@ -0,0 +1,136 @@ +/* -*- 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: */ |