1 /* This file is included!
2                             __  __            _
3                          ___\ \/ /_ __   __ _| |_
4                         / _ \\  /| '_ \ / _` | __|
5                        |  __//  \| |_) | (_| | |_
6                         \___/_/\_\ .__/ \__,_|\__|
7                                  |_| XML parser
8 
9    Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
10    Copyright (c) 2000      Clark Cooper <coopercc@users.sourceforge.net>
11    Copyright (c) 2002      Greg Stein <gstein@users.sourceforge.net>
12    Copyright (c) 2002      Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
13    Copyright (c) 2002-2006 Karl Waclawek <karl@waclawek.net>
14    Copyright (c) 2017      Sebastian Pipping <sebastian@pipping.org>
15    Licensed under the MIT license:
16 
17    Permission is  hereby granted,  free of charge,  to any  person obtaining
18    a  copy  of  this  software   and  associated  documentation  files  (the
19    "Software"),  to  deal in  the  Software  without restriction,  including
20    without  limitation the  rights  to use,  copy,  modify, merge,  publish,
21    distribute, sublicense, and/or sell copies of the Software, and to permit
22    persons  to whom  the Software  is  furnished to  do so,  subject to  the
23    following conditions:
24 
25    The above copyright  notice and this permission notice  shall be included
26    in all copies or substantial portions of the Software.
27 
28    THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
29    EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
30    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
31    NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
32    DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
33    OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
34    USE OR OTHER DEALINGS IN THE SOFTWARE.
35 */
36 
37 #ifdef XML_TOK_NS_C
38 
39 const ENCODING *
NS(XmlGetUtf8InternalEncoding)40 NS(XmlGetUtf8InternalEncoding)(void) {
41   return &ns(internal_utf8_encoding).enc;
42 }
43 
44 const ENCODING *
NS(XmlGetUtf16InternalEncoding)45 NS(XmlGetUtf16InternalEncoding)(void) {
46 #  if BYTEORDER == 1234
47   return &ns(internal_little2_encoding).enc;
48 #  elif BYTEORDER == 4321
49   return &ns(internal_big2_encoding).enc;
50 #  else
51   const short n = 1;
52   return (*(const char *)&n ? &ns(internal_little2_encoding).enc
53                             : &ns(internal_big2_encoding).enc);
54 #  endif
55 }
56 
57 static const ENCODING *const NS(encodings)[] = {
58     &ns(latin1_encoding).enc, &ns(ascii_encoding).enc,
59     &ns(utf8_encoding).enc,   &ns(big2_encoding).enc,
60     &ns(big2_encoding).enc,   &ns(little2_encoding).enc,
61     &ns(utf8_encoding).enc /* NO_ENC */
62 };
63 
64 static int PTRCALL
NS(initScanProlog)65 NS(initScanProlog)(const ENCODING *enc, const char *ptr, const char *end,
66                    const char **nextTokPtr) {
67   return initScan(NS(encodings), (const INIT_ENCODING *)enc, XML_PROLOG_STATE,
68                   ptr, end, nextTokPtr);
69 }
70 
71 static int PTRCALL
NS(initScanContent)72 NS(initScanContent)(const ENCODING *enc, const char *ptr, const char *end,
73                     const char **nextTokPtr) {
74   return initScan(NS(encodings), (const INIT_ENCODING *)enc, XML_CONTENT_STATE,
75                   ptr, end, nextTokPtr);
76 }
77 
78 int
NS(XmlInitEncoding)79 NS(XmlInitEncoding)(INIT_ENCODING *p, const ENCODING **encPtr,
80                     const char *name) {
81   int i = getEncodingIndex(name);
82   if (i == UNKNOWN_ENC)
83     return 0;
84   SET_INIT_ENC_INDEX(p, i);
85   p->initEnc.scanners[XML_PROLOG_STATE] = NS(initScanProlog);
86   p->initEnc.scanners[XML_CONTENT_STATE] = NS(initScanContent);
87   p->initEnc.updatePosition = initUpdatePosition;
88   p->encPtr = encPtr;
89   *encPtr = &(p->initEnc);
90   return 1;
91 }
92 
93 static const ENCODING *
NS(findEncoding)94 NS(findEncoding)(const ENCODING *enc, const char *ptr, const char *end) {
95 #  define ENCODING_MAX 128
96   char buf[ENCODING_MAX];
97   char *p = buf;
98   int i;
99   XmlUtf8Convert(enc, &ptr, end, &p, p + ENCODING_MAX - 1);
100   if (ptr != end)
101     return 0;
102   *p = 0;
103   if (streqci(buf, KW_UTF_16) && enc->minBytesPerChar == 2)
104     return enc;
105   i = getEncodingIndex(buf);
106   if (i == UNKNOWN_ENC)
107     return 0;
108   return NS(encodings)[i];
109 }
110 
111 int
NS(XmlParseXmlDecl)112 NS(XmlParseXmlDecl)(int isGeneralTextEntity, const ENCODING *enc,
113                     const char *ptr, const char *end, const char **badPtr,
114                     const char **versionPtr, const char **versionEndPtr,
115                     const char **encodingName, const ENCODING **encoding,
116                     int *standalone) {
117   return doParseXmlDecl(NS(findEncoding), isGeneralTextEntity, enc, ptr, end,
118                         badPtr, versionPtr, versionEndPtr, encodingName,
119                         encoding, standalone);
120 }
121 
122 #endif /* XML_TOK_NS_C */
123