contrib/src/xml/expat/xmltok/xmltok_ns.c

   1 const ENCODING *NS(XmlGetUtf8InternalEncoding)(void)
   2 {
   3   return &ns(internal_utf8_encoding).enc;
   4 }
   5
   6 const ENCODING *NS(XmlGetUtf16InternalEncoding)(void)
   7 {
   8 #if XML_BYTE_ORDER == 12
   9   return &ns(internal_little2_encoding).enc;
  10 #elif XML_BYTE_ORDER == 21
  11   return &ns(internal_big2_encoding).enc;
  12 #else
  13   const short n = 1;
  14   return *(const char *)&n ? &ns(internal_little2_encoding).enc : &ns(internal_big2_encoding).enc;
  15 #endif
  16 }
  17
  18 static
  19 const ENCODING *NS(encodings)[] = {
  20   &ns(latin1_encoding).enc,
  21   &ns(ascii_encoding).enc,
  22   &ns(utf8_encoding).enc,
  23   &ns(big2_encoding).enc,
  24   &ns(big2_encoding).enc,
  25   &ns(little2_encoding).enc,
  26   &ns(utf8_encoding).enc /* NO_ENC */
  27 };
  28
  29 static
  30 int NS(initScanProlog)(const ENCODING *enc, const char *ptr, const char *end,
  31                        const char **nextTokPtr)
  32 {
  33   return initScan(NS(encodings), (const INIT_ENCODING *)enc, XML_PROLOG_STATE, ptr, end, nextTokPtr);
  34 }
  35
  36 static
  37 int NS(initScanContent)(const ENCODING *enc, const char *ptr, const char *end,
  38                        const char **nextTokPtr)
  39 {
  40   return initScan(NS(encodings), (const INIT_ENCODING *)enc, XML_CONTENT_STATE, ptr, end, nextTokPtr);
  41 }
  42
  43 int NS(XmlInitEncoding)(INIT_ENCODING *p, const ENCODING **encPtr, const char *name)
  44 {
  45   int i = getEncodingIndex(name);
  46   if (i == UNKNOWN_ENC)
  47     return 0;
  48   SET_INIT_ENC_INDEX(p, i);
  49   p->initEnc.scanners[XML_PROLOG_STATE] = NS(initScanProlog);
  50   p->initEnc.scanners[XML_CONTENT_STATE] = NS(initScanContent);
  51   p->initEnc.updatePosition = initUpdatePosition;
  52   p->encPtr = encPtr;
  53   *encPtr = &(p->initEnc);
  54   return 1;
  55 }
  56
  57 static
  58 const ENCODING *NS(findEncoding)(const ENCODING *enc, const char *ptr, const char *end)
  59 {
  60 #define ENCODING_MAX 128
  61   char buf[ENCODING_MAX];
  62   char *p = buf;
  63   int i;
  64   XmlUtf8Convert(enc, &ptr, end, &p, p + ENCODING_MAX - 1);
  65   if (ptr != end)
  66     return 0;
  67   *p = 0;
  68   if (streqci(buf, KW_UTF_16) && enc->minBytesPerChar == 2)
  69     return enc;
  70   i = getEncodingIndex(buf);
  71   if (i == UNKNOWN_ENC)
  72     return 0;
  73   return NS(encodings)[i];
  74 }
  75
  76 int NS(XmlParseXmlDecl)(int isGeneralTextEntity,
  77                         const ENCODING *enc,
  78                         const char *ptr,
  79                         const char *end,
  80                         const char **badPtr,
  81                         const char **versionPtr,
  82                         const char **encodingName,
  83                         const ENCODING **encoding,
  84                         int *standalone)
  85 {
  86   return doParseXmlDecl(NS(findEncoding),
  87                         isGeneralTextEntity,
  88                         enc,
  89                         ptr,
  90                         end,
  91                         badPtr,
  92                         versionPtr,
  93                         encodingName,
  94                         encoding,
  95                         standalone);
  96 }