sal/textenc/converter.c

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  27
  28 #include "converter.h"
  29 #include "tenchelp.h"
  30 #include "unichars.h"
  31 #include "rtl/textcvt.h"
  32 #include "sal/types.h"
  33
  34 ImplBadInputConversionAction ImplHandleBadInputTextToUnicodeConversion(
  35     sal_Bool bUndefined, sal_Bool bMultiByte, sal_Char cByte, sal_uInt32 nFlags,
  36     sal_Unicode ** pDestBufPtr, sal_Unicode * pDestBufEnd, sal_uInt32 * pInfo)
  37 {
  38     *pInfo |= bUndefined
  39         ? (bMultiByte
  40            ? RTL_TEXTTOUNICODE_INFO_MBUNDEFINED
  41            : RTL_TEXTTOUNICODE_INFO_UNDEFINED)
  42         : RTL_TEXTTOUNICODE_INFO_INVALID;
  43     switch (nFlags
  44             & (bUndefined
  45                ? (bMultiByte
  46                   ? RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_MASK
  47                   : RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_MASK)
  48                : RTL_TEXTTOUNICODE_FLAGS_INVALID_MASK))
  49     {
  50     case RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR:
  51     case RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR:
  52     case RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR:
  53         *pInfo |= RTL_TEXTTOUNICODE_INFO_ERROR;
  54         return IMPL_BAD_INPUT_STOP;
  55
  56     case RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_IGNORE:
  57     case RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_IGNORE:
  58     case RTL_TEXTTOUNICODE_FLAGS_INVALID_IGNORE:
  59         return IMPL_BAD_INPUT_CONTINUE;
  60
  61     case RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_MAPTOPRIVATE:
  62         if (*pDestBufPtr != pDestBufEnd)
  63         {
  64             *(*pDestBufPtr)++ = RTL_TEXTCVT_BYTE_PRIVATE_START
  65                 | ((sal_uChar) cByte);
  66             return IMPL_BAD_INPUT_CONTINUE;
  67         }
  68         else
  69             return IMPL_BAD_INPUT_NO_OUTPUT;
  70
  71     default: /* RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_DEFAULT,
  72                 RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_DEFAULT,
  73                 RTL_TEXTTOUNICODE_FLAGS_INVALID_DEFAULT */
  74         if (*pDestBufPtr != pDestBufEnd)
  75         {
  76             *(*pDestBufPtr)++ = RTL_TEXTENC_UNICODE_REPLACEMENT_CHARACTER;
  77             return IMPL_BAD_INPUT_CONTINUE;
  78         }
  79         else
  80             return IMPL_BAD_INPUT_NO_OUTPUT;
  81     }
  82 }
  83
  84 ImplBadInputConversionAction
  85 ImplHandleBadInputUnicodeToTextConversion(sal_Bool bUndefined,
  86                                           sal_uInt32 nUtf32,
  87                                           sal_uInt32 nFlags,
  88                                           sal_Char ** pDestBufPtr,
  89                                           sal_Char * pDestBufEnd,
  90                                           sal_uInt32 * pInfo,
  91                                           sal_Char const * pPrefix,
  92                                           sal_Size nPrefixLen,
  93                                           sal_Bool * pPrefixWritten)
  94 {
  95     /* TODO! RTL_UNICODETOTEXT_FLAGS_UNDEFINED_REPLACE
  96              RTL_UNICODETOTEXT_FLAGS_UNDEFINED_REPLACESTR */
  97
  98     sal_Char cReplace;
  99
 100     if (bUndefined)
 101     {
 102         if (ImplIsControlOrFormat(nUtf32))
 103         {
 104             if ((nFlags & RTL_UNICODETOTEXT_FLAGS_CONTROL_IGNORE) != 0)
 105                 nFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE;
 106         }
 107         else if (ImplIsPrivateUse(nUtf32))
 108         {
 109             if ((nFlags & RTL_UNICODETOTEXT_FLAGS_PRIVATE_IGNORE) != 0)
 110                 nFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE;
 111             else if ((nFlags & RTL_UNICODETOTEXT_FLAGS_PRIVATE_MAPTO0) != 0)
 112                 nFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0;
 113         }
 114         else if (ImplIsZeroWidth(nUtf32))
 115         {
 116             if ((nFlags & RTL_UNICODETOTEXT_FLAGS_NONSPACING_IGNORE) != 0)
 117                 nFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE;
 118         }
 119     }
 120     *pInfo |= bUndefined ? RTL_UNICODETOTEXT_INFO_UNDEFINED :
 121                            RTL_UNICODETOTEXT_INFO_INVALID;
 122     switch (nFlags & (bUndefined ? RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK :
 123                                    RTL_UNICODETOTEXT_FLAGS_INVALID_MASK))
 124     {
 125     case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR:
 126     case RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR:
 127         *pInfo |= RTL_UNICODETOTEXT_INFO_ERROR;
 128         return IMPL_BAD_INPUT_STOP;
 129
 130     case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE:
 131     case RTL_UNICODETOTEXT_FLAGS_INVALID_IGNORE:
 132         if (pPrefixWritten)
 133             *pPrefixWritten = sal_False;
 134         return IMPL_BAD_INPUT_CONTINUE;
 135
 136     case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0:
 137     case RTL_UNICODETOTEXT_FLAGS_INVALID_0:
 138         cReplace = 0;
 139         break;
 140
 141     case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK:
 142     case RTL_UNICODETOTEXT_FLAGS_INVALID_QUESTIONMARK:
 143     default: /* RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT,
 144                 RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT */
 145         cReplace = '?';
 146         break;
 147
 148     case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_UNDERLINE:
 149     case RTL_UNICODETOTEXT_FLAGS_INVALID_UNDERLINE:
 150         cReplace = '_';
 151         break;
 152     }
 153     if ((sal_Size) (pDestBufEnd - *pDestBufPtr) > nPrefixLen)
 154     {
 155         while (nPrefixLen-- > 0)
 156             *(*pDestBufPtr)++ = *pPrefix++;
 157         *(*pDestBufPtr)++ = cReplace;
 158         if (pPrefixWritten)
 159             *pPrefixWritten = sal_True;
 160         return IMPL_BAD_INPUT_CONTINUE;
 161     }
 162     else
 163         return IMPL_BAD_INPUT_NO_OUTPUT;
 164 }