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) 2000-2017 Expat development team
11 Licensed under the MIT license:
12
13 Permission is hereby granted, free of charge, to any person obtaining
14 a copy of this software and associated documentation files (the
15 "Software"), to deal in the Software without restriction, including
16 without limitation the rights to use, copy, modify, merge, publish,
17 distribute, sublicense, and/or sell copies of the Software, and to permit
18 persons to whom the Software is furnished to do so, subject to the
19 following conditions:
20
21 The above copyright notice and this permission notice shall be included
22 in all copies or substantial portions of the Software.
23
24 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
27 NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
28 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
29 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
30 USE OR OTHER DEALINGS IN THE SOFTWARE.
31 */
32
33 #ifdef XML_TOK_NS_C
34
35 const ENCODING *
NS(XmlGetUtf8InternalEncoding)36 NS(XmlGetUtf8InternalEncoding)(void)
37 {
38 return &ns(internal_utf8_encoding).enc;
39 }
40
41 const ENCODING *
NS(XmlGetUtf16InternalEncoding)42 NS(XmlGetUtf16InternalEncoding)(void)
43 {
44 #if BYTEORDER == 1234
45 return &ns(internal_little2_encoding).enc;
46 #elif BYTEORDER == 4321
47 return &ns(internal_big2_encoding).enc;
48 #else
49 const short n = 1;
50 return (*(const char *)&n
51 ? &ns(internal_little2_encoding).enc
52 : &ns(internal_big2_encoding).enc);
53 #endif
54 }
55
56 static const ENCODING * const NS(encodings)[] = {
57 &ns(latin1_encoding).enc,
58 &ns(ascii_encoding).enc,
59 &ns(utf8_encoding).enc,
60 &ns(big2_encoding).enc,
61 &ns(big2_encoding).enc,
62 &ns(little2_encoding).enc,
63 &ns(utf8_encoding).enc /* NO_ENC */
64 };
65
66 static int PTRCALL
NS(initScanProlog)67 NS(initScanProlog)(const ENCODING *enc, const char *ptr, const char *end,
68 const char **nextTokPtr)
69 {
70 return initScan(NS(encodings), (const INIT_ENCODING *)enc,
71 XML_PROLOG_STATE, ptr, end, nextTokPtr);
72 }
73
74 static int PTRCALL
NS(initScanContent)75 NS(initScanContent)(const ENCODING *enc, const char *ptr, const char *end,
76 const char **nextTokPtr)
77 {
78 return initScan(NS(encodings), (const INIT_ENCODING *)enc,
79 XML_CONTENT_STATE, ptr, end, nextTokPtr);
80 }
81
82 int
NS(XmlInitEncoding)83 NS(XmlInitEncoding)(INIT_ENCODING *p, const ENCODING **encPtr,
84 const char *name)
85 {
86 int i = getEncodingIndex(name);
87 if (i == UNKNOWN_ENC)
88 return 0;
89 SET_INIT_ENC_INDEX(p, i);
90 p->initEnc.scanners[XML_PROLOG_STATE] = NS(initScanProlog);
91 p->initEnc.scanners[XML_CONTENT_STATE] = NS(initScanContent);
92 p->initEnc.updatePosition = initUpdatePosition;
93 p->encPtr = encPtr;
94 *encPtr = &(p->initEnc);
95 return 1;
96 }
97
98 static const ENCODING *
NS(findEncoding)99 NS(findEncoding)(const ENCODING *enc, const char *ptr, const char *end)
100 {
101 #define ENCODING_MAX 128
102 char buf[ENCODING_MAX];
103 char *p = buf;
104 int i;
105 XmlUtf8Convert(enc, &ptr, end, &p, p + ENCODING_MAX - 1);
106 if (ptr != end)
107 return 0;
108 *p = 0;
109 if (streqci(buf, KW_UTF_16) && enc->minBytesPerChar == 2)
110 return enc;
111 i = getEncodingIndex(buf);
112 if (i == UNKNOWN_ENC)
113 return 0;
114 return NS(encodings)[i];
115 }
116
117 int
NS(XmlParseXmlDecl)118 NS(XmlParseXmlDecl)(int isGeneralTextEntity,
119 const ENCODING *enc,
120 const char *ptr,
121 const char *end,
122 const char **badPtr,
123 const char **versionPtr,
124 const char **versionEndPtr,
125 const char **encodingName,
126 const ENCODING **encoding,
127 int *standalone)
128 {
129 return doParseXmlDecl(NS(findEncoding),
130 isGeneralTextEntity,
131 enc,
132 ptr,
133 end,
134 badPtr,
135 versionPtr,
136 versionEndPtr,
137 encodingName,
138 encoding,
139 standalone);
140 }
141
142 #endif /* XML_TOK_NS_C */
143