| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_i18npool.hxx" |
| |
| #include <inputsequencechecker_th.hxx> |
| #include <wtt.h> |
| |
| using namespace rtl; |
| |
| namespace com { namespace sun { namespace star { namespace i18n { |
| |
| InputSequenceChecker_th::InputSequenceChecker_th() |
| { |
| serviceName = "com.sun.star.i18n.InputSequenceChecker_th"; |
| } |
| |
| InputSequenceChecker_th::~InputSequenceChecker_th() |
| { |
| } |
| |
| /* Table for Thai Cell Manipulation */ |
| sal_Char _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' } |
| }; |
| |
| sal_Bool _TAC_Composible[3][5] = { |
| /* 'A', 'C', 'S', 'R', 'X' */ |
| /* Mode 0 */ {sal_True, sal_True, sal_True, sal_True, sal_True}, // PASSTHROUGH = 0 |
| /* Mode 1 */ {sal_True, sal_True, sal_True, sal_False, sal_True}, // BASIC = 1 |
| /* Mode 2 */ {sal_True, sal_True, sal_False, sal_False, sal_True} // STRICT = 2 |
| }; |
| |
| static sal_Bool SAL_CALL 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) throw(com::sun::star::uno::RuntimeException) |
| { |
| return check(Text[nStartPos], inputChar, inputCheckMode); |
| } |
| |
| sal_Int32 SAL_CALL |
| InputSequenceChecker_th::correctInputSequence(OUString& Text, |
| sal_Int32 nStartPos, |
| sal_Unicode inputChar, |
| sal_Int16 inputCheckMode) |
| throw(com::sun::star::uno::RuntimeException) |
| { |
| /* 9 rules for input sequence correction, see issue i42661 for detail, |
| |
| http://www.openoffice.org/issues/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, OUString(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, OUString(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, OUString(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, OUString(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, OUString(inputChar)); |
| else |
| nStartPos=Text.getLength(); |
| } else |
| nStartPos=Text.getLength(); |
| |
| return nStartPos; |
| } |
| |
| } } } } |