xref: /minix/external/mit/expat/dist/lib/xmltok_ns.c (revision 1230fdc1)
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 *
NS(XmlGetUtf8InternalEncoding)9 NS(XmlGetUtf8InternalEncoding)(void)
10 {
11   return &ns(internal_utf8_encoding).enc;
12 }
13 
14 const ENCODING *
NS(XmlGetUtf16InternalEncoding)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
NS(initScanProlog)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
NS(initScanContent)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
NS(XmlInitEncoding)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 *
NS(findEncoding)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
NS(XmlParseXmlDecl)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 */
116