i18npool/source/inputchecker/inputsequencechecker_th.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_i18npool.hxx"
  33
  34 #include <inputsequencechecker_th.hxx>
  35 #include <wtt.h>
  36
  37 using namespace rtl;
  38
  39 namespace com { namespace sun { namespace star { namespace i18n {
  40
  41 InputSequenceChecker_th::InputSequenceChecker_th()
  42 {
  43     serviceName = "com.sun.star.i18n.InputSequenceChecker_th";
  44 }
  45
  46 InputSequenceChecker_th::~InputSequenceChecker_th()
  47 {
  48 }
  49
  50 /* Table for Thai Cell Manipulation */
  51 sal_Char _TAC_celltype_inputcheck[17][17] = {
  52 /* Cn */ /*      0,   1,   2,   3,   4,   5,   6,   7,   8,   9,   A,   B,   C,   D,   E,   F       */
  53 /* Cn-1 00 */{  'X', 'A', 'A', 'A', 'A', 'A', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  54      /* 10 */{  'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  55      /* 20 */{  'X', 'A', 'A', 'A', 'A', 'S', 'A', 'C', 'C', 'C', 'C', 'C', 'C', 'C', 'C', 'C', 'C' },
  56      /* 30 */{  'X', 'S', 'A', 'S', 'S', 'S', 'S', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  57      /* 40 */{  'X', 'A', 'A', 'A', 'A', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  58      /* 50 */{  'X', 'A', 'A', 'A', 'A', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  59      /* 60 */{  'X', 'A', 'A', 'A', 'S', 'A', 'S', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  60      /* 70 */{  'X', 'A', 'A', 'A', 'A', 'S', 'A', 'R', 'R', 'R', 'C', 'C', 'R', 'R', 'R', 'R', 'R' },
  61      /* 80 */{  'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'C', 'R', 'R', 'R', 'R', 'R', 'R' },
  62      /* 90 */{  'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  63      /* A0 */{  'X', 'A', 'A', 'A', 'A', 'A', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  64      /* B0 */{  'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  65      /* C0 */{  'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  66      /* D0 */{  'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R' },
  67      /* E0 */{  'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'C', 'C', 'R', 'R', 'R', 'R', 'R' },
  68      /* F0 */{  'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'C', 'R', 'R', 'R', 'R', 'R', 'R' },
  69          { 'X', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'C', 'R', 'C', 'R', 'R', 'R', 'R' }
  70 };
  71
  72 sal_Bool _TAC_Composible[3][5] = {
  73         /*  'A',        'C',            'S',            'R',            'X'   */
  74 /* Mode 0 */    {sal_True,      sal_True,       sal_True,       sal_True,       sal_True}, // PASSTHROUGH = 0
  75 /* Mode 1 */    {sal_True,      sal_True,       sal_True,       sal_False,      sal_True}, // BASIC = 1
  76 /* Mode 2 */    {sal_True,      sal_True,       sal_False,      sal_False,      sal_True}  // STRICT = 2
  77 };
  78
  79 static sal_Bool SAL_CALL check(sal_Unicode ch1, sal_Unicode ch2, sal_Int16 inputCheckMode)
  80 {
  81     sal_Int16  composible_class;
  82     switch (_TAC_celltype_inputcheck[getCharType(ch1)][getCharType(ch2)]) {
  83         case 'A': composible_class = 0; break;
  84         case 'C': composible_class = 1; break;
  85         case 'S': composible_class = 2; break;
  86         case 'R': composible_class = 3; break;
  87         case 'X': composible_class = 4; break;
  88         default:  composible_class = 0;
  89     }
  90     return (_TAC_Composible[inputCheckMode][composible_class]);
  91 }
  92
  93 sal_Bool SAL_CALL
  94 InputSequenceChecker_th::checkInputSequence(const OUString& Text, sal_Int32 nStartPos,
  95     sal_Unicode inputChar, sal_Int16 inputCheckMode) throw(com::sun::star::uno::RuntimeException)
  96 {
  97     return check(Text[nStartPos], inputChar, inputCheckMode);
  98 }
  99
 100 sal_Int32 SAL_CALL
 101 InputSequenceChecker_th::correctInputSequence(OUString& Text,
 102                                             sal_Int32       nStartPos,
 103                                             sal_Unicode     inputChar,
 104                                             sal_Int16       inputCheckMode)
 105   throw(com::sun::star::uno::RuntimeException)
 106 {
 107 /* 9 rules for input sequence correction, see issue i42661 for detail,
 108
 109 http://www.openoffice.org/issues/show_bug.cgi?id=42661
 110
 111 <abv> = <av1>|<av2>|<av3>|<bv1>|<bv2>
 112 <abv1> = <av1>|<bv1>
 113 <thanthakhat> = 0E4C (karan)
 114
 115 1. <cons> <abv>_x + <abv>_y => <cons> <abv>_y (replace)
 116 2. <cons> <tone>_x + <tone>_y => <cons> <tone>_y (replace)
 117 3. <cons> <abv> <tone>_x + <tone>_y => <cons> <abv> <tone>_y (replace)
 118 4. <cons> <abv>_x <tone> + <abv>_y => <cons> <abv>_y <tone> (replace, reorder)
 119 5. <cons> <tone> + <abv> => <cons> <abv> <tone> (reorder)
 120 6. <cons> <fv1> + <tone> => <cons> <tone> <fv1> (reorder)
 121 7. <cons> <tone>_x <fv1> + <tone>_y => <cons> <tone>_y <fv1> (replace, reorder)
 122 8. <cons> <thanthakhat> + <abv1> => <cons> <abv1> <thanthakhat> (reorder)
 123 9. <cons> <abv1>_x <thanthakhat> + <abv1>_y => <cons> <abv1>_y <thanthakhat>(reorder, replace)
 124 */
 125 #define CT_ABV(t)  ( (t>=CT_AV1 && t<=CT_AV3) || t==CT_BV1 || t==CT_BV2)
 126 #define CT_ABV1(t) (t==CT_AV1 || t==CT_BV1)
 127
 128     if (check(Text[nStartPos], inputChar, inputCheckMode))
 129         Text = Text.replaceAt(++nStartPos, 0, OUString(inputChar));
 130     else if (nStartPos > 0 && getCharType(Text[nStartPos-1]) == CT_CONS) {
 131         sal_uInt16 t1=getCharType(Text[nStartPos]), t2=getCharType(inputChar);
 132         if ( (CT_ABV(t1) && CT_ABV(t2)) || // 1.
 133                 (t1==CT_TONE && t2==CT_TONE) )// 2.
 134             Text = Text.replaceAt(nStartPos, 1, OUString(inputChar));
 135         else if ( (t1==CT_TONE && CT_ABV(t2)) ||  // 5.
 136                 (t1==CT_FV1 && t2==CT_TONE) ||  // 6.
 137                 (Text[nStartPos]==0x0E4C && CT_ABV1(t2)) ) // 8.
 138             Text = Text.replaceAt(nStartPos++, 0, OUString(inputChar));
 139         else
 140             nStartPos=Text.getLength();
 141     } else if (nStartPos > 1 && getCharType(Text[nStartPos-2]) == CT_CONS) {
 142         sal_uInt16 t1=getCharType(Text[nStartPos-1]), t2=getCharType(Text[nStartPos]), t3=getCharType(inputChar);
 143         if (CT_ABV(t1) && t2==CT_TONE && t3==CT_TONE) // 3.
 144             Text = Text.replaceAt(nStartPos, 1, OUString(inputChar));
 145         else if ( (CT_ABV(t1) && t2==CT_TONE && CT_ABV(t3)) || // 4.
 146                 (t1==CT_TONE && t2==CT_FV1 && t3==CT_TONE) || // 7.
 147                 (CT_ABV1(t1) && Text[nStartPos]==0x0E4C && CT_ABV1(t3)) ) // 9.
 148             Text = Text.replaceAt(nStartPos-1, 1, OUString(inputChar));
 149         else
 150             nStartPos=Text.getLength();
 151     } else
 152         nStartPos=Text.getLength();
 153
 154     return nStartPos;
 155 }
 156
 157 } } } }