third_party/expat/files/lib/xmltok_ns.c

   1 /* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
   2    See the file COPYING for copying permission.
   3 */
   4
   5 /* This file is included! */
   6 #ifdef XML_TOK_NS_C
   7
   8 const ENCODING *
   9 NS(XmlGetUtf8InternalEncoding)(void)
  10 {
  11   return &ns(internal_utf8_encoding).enc;
  12 }
  13
  14 const ENCODING *
  15 NS(XmlGetUtf16InternalEncoding)(void)
  16 {
  17 #if BYTEORDER == 1234
  18   return &ns(internal_little2_encoding).enc;
  19 #elif BYTEORDER == 4321
  20   return &ns(internal_big2_encoding).enc;
  21 #else
  22   const short n = 1;
  23   return (*(const char *)&n
  24           ? &ns(internal_little2_encoding).enc
  25           : &ns(internal_big2_encoding).enc);
  26 #endif
  27 }
  28
  29 static const ENCODING * const NS(encodings)[] = {
  30   &ns(latin1_encoding).enc,
  31   &ns(ascii_encoding).enc,
  32   &ns(utf8_encoding).enc,
  33   &ns(big2_encoding).enc,
  34   &ns(big2_encoding).enc,
  35   &ns(little2_encoding).enc,
  36   &ns(utf8_encoding).enc /* NO_ENC */
  37 };
  38
  39 static int PTRCALL
  40 NS(initScanProlog)(const ENCODING *enc, const char *ptr, const char *end,
  41                    const char **nextTokPtr)
  42 {
  43   return initScan(NS(encodings), (const INIT_ENCODING *)enc,
  44                   XML_PROLOG_STATE, ptr, end, nextTokPtr);
  45 }
  46
  47 static int PTRCALL
  48 NS(initScanContent)(const ENCODING *enc, const char *ptr, const char *end,
  49                     const char **nextTokPtr)
  50 {
  51   return initScan(NS(encodings), (const INIT_ENCODING *)enc,
  52                   XML_CONTENT_STATE, ptr, end, nextTokPtr);
  53 }
  54
  55 int
  56 NS(XmlInitEncoding)(INIT_ENCODING *p, const ENCODING **encPtr,
  57                     const char *name)
  58 {
  59   int i = getEncodingIndex(name);
  60   if (i == UNKNOWN_ENC)
  61     return 0;
  62   SET_INIT_ENC_INDEX(p, i);
  63   p->initEnc.scanners[XML_PROLOG_STATE] = NS(initScanProlog);
  64   p->initEnc.scanners[XML_CONTENT_STATE] = NS(initScanContent);
  65   p->initEnc.updatePosition = initUpdatePosition;
  66   p->encPtr = encPtr;
  67   *encPtr = &(p->initEnc);
  68   return 1;
  69 }
  70
  71 static const ENCODING *
  72 NS(findEncoding)(const ENCODING *enc, const char *ptr, const char *end)
  73 {
  74 #define ENCODING_MAX 128
  75   char buf[ENCODING_MAX];
  76   char *p = buf;
  77   int i;
  78   XmlUtf8Convert(enc, &ptr, end, &p, p + ENCODING_MAX - 1);
  79   if (ptr != end)
  80     return 0;
  81   *p = 0;
  82   if (streqci(buf, KW_UTF_16) && enc->minBytesPerChar == 2)
  83     return enc;
  84   i = getEncodingIndex(buf);
  85   if (i == UNKNOWN_ENC)
  86     return 0;
  87   return NS(encodings)[i];
  88 }
  89
  90 int
  91 NS(XmlParseXmlDecl)(int isGeneralTextEntity,
  92                     const ENCODING *enc,
  93                     const char *ptr,
  94                     const char *end,
  95                     const char **badPtr,
  96                     const char **versionPtr,
  97                     const char **versionEndPtr,
  98                     const char **encodingName,
  99                     const ENCODING **encoding,
 100                     int *standalone)
 101 {
 102   return doParseXmlDecl(NS(findEncoding),
 103                         isGeneralTextEntity,
 104                         enc,
 105                         ptr,
 106                         end,
 107                         badPtr,
 108                         versionPtr,
 109                         versionEndPtr,
 110                         encodingName,
 111                         encoding,
 112                         standalone);
 113 }
 114
 115 #endif /* XML_TOK_NS_C */