i18npool/source/inputchecker/inputsequencechecker_hi.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_hi.hxx>
  35
  36 using namespace rtl;
  37
  38 namespace com {
  39 namespace sun {
  40 namespace star {
  41 namespace i18n {
  42
  43 InputSequenceChecker_hi::InputSequenceChecker_hi()
  44 {
  45     serviceName = "com.sun.star.i18n.InputSequenceChecker_hi";
  46 }
  47
  48 InputSequenceChecker_hi::~InputSequenceChecker_hi()
  49 {
  50 }
  51 /* Non-Defined Class type */
  52 #define __ND            0
  53
  54 /*
  55  * Devanagari character type definitions
  56  */
  57 #define __UP  1  // ChandraBindu & Anuswar
  58 #define __NP  2  // Visarg
  59 #define __IV    3  // Independant Vowels
  60 #define __CN    4  // Consonants except _CK & _RC
  61 #define __CK    5  // Consonants that can be followed by Nukta
  62 #define __RC    6  // Ra
  63 #define __NM    7  // Matra
  64 #define __RM    8  // Ra + HAL
  65 #define __IM    9  // Choti I Matra
  66 #define __HL    10 // HAL
  67 #define __NK    11 // Nukta
  68 #define __VD    12 // Vedic
  69 #define __HD    13 // Hindu Numerals
  70
  71 /*
  72  * Devanagari character type table
  73  */
  74 static const sal_uInt16 devaCT[128] = {
  75 /*         0,    1,    2,    3,    4,    5,    6,    7,
  76            8,    9,    A,    B,    C,    D,    E,    F, */
  77 /* 0900 */ __ND, __UP, __UP, __NP, __ND, __IV, __IV, __IV,
  78            __IV, __IV, __IV, __IV, __IV, __IV, __IV, __IV,
  79 /* 0910 */ __IV, __IV, __IV, __IV, __IV, __CK, __CK, __CK,
  80            __CN, __CN, __CN, __CN, __CK, __CN, __CN, __CN,
  81 /* 0920 */ __CN, __CK, __CK, __CN, __CN, __CN, __CN, __CN,
  82            __CN, __CN, __CN, __CK, __CN, __CN, __CN, __CN,
  83 /* 0930 */ __RC, __CN, __CN, __CN, __CN, __CN, __CN, __CN,
  84            __CN, __CN, __ND, __ND, __NK, __VD, __NM, __IM,
  85 /* 0940 */ __RM, __NM, __NM, __NM, __NM, __RM, __RM, __RM,
  86            __RM, __RM, __RM, __RM, __RM, __HL, __ND, __ND,
  87 /* 0950 */ __ND, __VD, __VD, __VD, __VD, __ND, __ND, __ND,
  88            __CN, __CN, __CN, __CN, __CN, __CN, __CN, __CN,
  89 /* 0960 */ __IV, __IV, __NM, __NM, __ND, __ND, __HD, __HD,
  90            __HD, __HD, __HD, __HD, __HD, __HD, __HD, __HD,
  91 /* 0970 */ __ND, __ND, __ND, __ND, __ND, __ND, __ND, __ND,
  92            __ND, __ND, __ND, __ND, __ND, __ND, __ND, __ND,
  93 };
  94
  95 /*
  96  * Devanagari character composition table
  97  */
  98 static const sal_uInt16 dev_cell_check[14][14] = {
  99   /*        ND, UP, NP, IV, CN, CK, RC, NM, RM, IM, HL, NK, VD, HD, */
 100   /* 0  */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* ND */
 101   /* 1  */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* UP */
 102   /* 2  */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* NP */
 103   /* 3  */ { 0,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* IV */
 104   /* 4  */ { 0,  1,  1,  0,  0,  0,  0,  1,  1,  1,  1,  0,  0,  0 }, /* CN */
 105   /* 5  */ { 0,  1,  1,  0,  0,  0,  0,  1,  1,  1,  1,  1,  0,  0 }, /* CK */
 106   /* 6  */ { 0,  1,  1,  0,  0,  0,  0,  1,  1,  1,  1,  0,  0,  0 }, /* RC */
 107   /* 7  */ { 0,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* NM */
 108   /* 8  */ { 0,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* RM */
 109   /* 9  */ { 0,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* IM */
 110   /* 10 */ { 0,  0,  0,  0,  1,  1,  1,  0,  0,  0,  0,  0,  0,  0 }, /* HL */
 111   /* 11 */ { 0,  1,  1,  0,  0,  0,  0,  1,  1,  1,  1,  0,  0,  0 }, /* NK */
 112   /* 12 */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* VD */
 113   /* 13 */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }  /* HD */
 114 };
 115
 116 sal_Bool _DEV_Composible[2][2] = {
 117 /* Mode 0 */    {sal_True, sal_True }, // PASSTHROUGH = 0
 118 /* Mode 1 */    {sal_False, sal_True}  // STRICT = 1
 119 };
 120
 121 #define getCharType(x) \
 122     ((x >= 0x0900 && x < 0x097f) ? devaCT[x - 0x0900] : __ND)
 123
 124 sal_Bool SAL_CALL
 125 InputSequenceChecker_hi::checkInputSequence(const OUString& Text,
 126                                             sal_Int32       nStartPos,
 127                                             sal_Unicode     inputChar,
 128                                             sal_Int16       inputCheckMode)
 129   throw(com::sun::star::uno::RuntimeException)
 130 {
 131     sal_Unicode currentChar = Text[nStartPos];
 132   sal_uInt16  ch1 = getCharType(inputChar);
 133     sal_uInt16  ch2 = getCharType(currentChar);
 134
 135     return (_DEV_Composible[inputCheckMode][dev_cell_check[ch2][ch1]]);
 136 }
 137
 138 sal_Int32 SAL_CALL
 139 InputSequenceChecker_hi::correctInputSequence(OUString& Text,
 140                                             sal_Int32       nStartPos,
 141                                             sal_Unicode     inputChar,
 142                                             sal_Int16       inputCheckMode)
 143   throw(com::sun::star::uno::RuntimeException)
 144 {
 145     if (checkInputSequence(Text, nStartPos, inputChar, inputCheckMode))
 146         Text = Text.replaceAt(++nStartPos, 0, OUString(inputChar));
 147     else
 148         nStartPos=Text.getLength();
 149     return nStartPos;
 150 }
 151 } } } }