]> git.saurik.com Git - wxWidgets.git/blame - src/expat/xmlwf/xmlfile.c
[ 1509599 ] 'Split pickers page in widgets sample' with more icons and rebaking.
[wxWidgets.git] / src / expat / xmlwf / xmlfile.c
CommitLineData
5e9f2524
VS
1/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
2 See the file COPYING for copying permission.
3*/
4
5#include <stdio.h>
6#include <stdlib.h>
7#include <stddef.h>
8#include <string.h>
9#include <fcntl.h>
10#ifdef COMPILED_FROM_DSP
11#include "winconfig.h"
12#else
13#include "expat_config.h"
14#endif
15#include "expat.h"
16#include "xmlfile.h"
17#include "xmltchar.h"
18#include "filemap.h"
19
20#ifdef _MSC_VER
21#include <io.h>
22#endif
23
24#ifdef HAVE_UNISTD_H
25#include <unistd.h>
26#endif
27
28#ifndef O_BINARY
29#ifdef _O_BINARY
30#define O_BINARY _O_BINARY
31#else
32#define O_BINARY 0
33#endif
34#endif
35
36#ifdef _DEBUG
37#define READ_SIZE 16
38#else
39#define READ_SIZE (1024*8)
40#endif
41
42
43typedef struct {
44 XML_Parser parser;
45 int *retPtr;
46} PROCESS_ARGS;
47
48static void
49reportError(XML_Parser parser, const XML_Char *filename)
50{
51 int code = XML_GetErrorCode(parser);
52 const XML_Char *message = XML_ErrorString(code);
53 if (message)
54 ftprintf(stdout, T("%s:%d:%d: %s\n"),
55 filename,
56 XML_GetErrorLineNumber(parser),
57 XML_GetErrorColumnNumber(parser),
58 message);
59 else
60 ftprintf(stderr, T("%s: (unknown message %d)\n"), filename, code);
61}
62
63static void
64processFile(const void *data, size_t size,
65 const XML_Char *filename, void *args)
66{
67 XML_Parser parser = ((PROCESS_ARGS *)args)->parser;
68 int *retPtr = ((PROCESS_ARGS *)args)->retPtr;
69 if (XML_Parse(parser, data, size, 1) == XML_STATUS_ERROR) {
70 reportError(parser, filename);
71 *retPtr = 0;
72 }
73 else
74 *retPtr = 1;
75}
76
77#ifdef WIN32
78
79static int
80isAsciiLetter(XML_Char c)
81{
82 return (T('a') <= c && c <= T('z')) || (T('A') <= c && c <= T('Z'));
83}
84
85#endif /* WIN32 */
86
87static const XML_Char *
88resolveSystemId(const XML_Char *base, const XML_Char *systemId,
89 XML_Char **toFree)
90{
91 XML_Char *s;
92 *toFree = 0;
93 if (!base
94 || *systemId == T('/')
95#ifdef WIN32
96 || *systemId == T('\\')
97 || (isAsciiLetter(systemId[0]) && systemId[1] == T(':'))
98#endif
99 )
100 return systemId;
101 *toFree = (XML_Char *)malloc((tcslen(base) + tcslen(systemId) + 2)
102 * sizeof(XML_Char));
103 if (!*toFree)
104 return systemId;
105 tcscpy(*toFree, base);
106 s = *toFree;
107 if (tcsrchr(s, T('/')))
108 s = tcsrchr(s, T('/')) + 1;
109#ifdef WIN32
110 if (tcsrchr(s, T('\\')))
111 s = tcsrchr(s, T('\\')) + 1;
112#endif
113 tcscpy(s, systemId);
114 return *toFree;
115}
116
117static int
118externalEntityRefFilemap(XML_Parser parser,
119 const XML_Char *context,
120 const XML_Char *base,
121 const XML_Char *systemId,
122 const XML_Char *publicId)
123{
124 int result;
125 XML_Char *s;
126 const XML_Char *filename;
127 XML_Parser entParser = XML_ExternalEntityParserCreate(parser, context, 0);
128 PROCESS_ARGS args;
129 args.retPtr = &result;
130 args.parser = entParser;
131 filename = resolveSystemId(base, systemId, &s);
132 XML_SetBase(entParser, filename);
133 if (!filemap(filename, processFile, &args))
134 result = 0;
135 free(s);
136 XML_ParserFree(entParser);
137 return result;
138}
139
140static int
141processStream(const XML_Char *filename, XML_Parser parser)
142{
143 /* passing NULL for filename means read intput from stdin */
144 int fd = 0; /* 0 is the fileno for stdin */
145
146 if (filename != NULL) {
147 fd = topen(filename, O_BINARY|O_RDONLY);
148 if (fd < 0) {
149 tperror(filename);
150 return 0;
151 }
152 }
153 for (;;) {
154 int nread;
155 char *buf = XML_GetBuffer(parser, READ_SIZE);
156 if (!buf) {
157 if (filename != NULL)
158 close(fd);
159 ftprintf(stderr, T("%s: out of memory\n"),
160 filename != NULL ? filename : "xmlwf");
161 return 0;
162 }
163 nread = read(fd, buf, READ_SIZE);
164 if (nread < 0) {
165 tperror(filename != NULL ? filename : "STDIN");
166 if (filename != NULL)
167 close(fd);
168 return 0;
169 }
170 if (XML_ParseBuffer(parser, nread, nread == 0) == XML_STATUS_ERROR) {
171 reportError(parser, filename != NULL ? filename : "STDIN");
172 if (filename != NULL)
173 close(fd);
174 return 0;
175 }
176 if (nread == 0) {
177 if (filename != NULL)
178 close(fd);
179 break;;
180 }
181 }
182 return 1;
183}
184
185static int
186externalEntityRefStream(XML_Parser parser,
187 const XML_Char *context,
188 const XML_Char *base,
189 const XML_Char *systemId,
190 const XML_Char *publicId)
191{
192 XML_Char *s;
193 const XML_Char *filename;
194 int ret;
195 XML_Parser entParser = XML_ExternalEntityParserCreate(parser, context, 0);
196 filename = resolveSystemId(base, systemId, &s);
197 XML_SetBase(entParser, filename);
198 ret = processStream(filename, entParser);
199 free(s);
200 XML_ParserFree(entParser);
201 return ret;
202}
203
204int
205XML_ProcessFile(XML_Parser parser,
206 const XML_Char *filename,
207 unsigned flags)
208{
209 int result;
210
211 if (!XML_SetBase(parser, filename)) {
212 ftprintf(stderr, T("%s: out of memory"), filename);
213 exit(1);
214 }
215
216 if (flags & XML_EXTERNAL_ENTITIES)
217 XML_SetExternalEntityRefHandler(parser,
218 (flags & XML_MAP_FILE)
219 ? externalEntityRefFilemap
220 : externalEntityRefStream);
221 if (flags & XML_MAP_FILE) {
222 PROCESS_ARGS args;
223 args.retPtr = &result;
224 args.parser = parser;
225 if (!filemap(filename, processFile, &args))
226 result = 0;
227 }
228 else
229 result = processStream(filename, parser);
230 return result;
231}