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source: vbox/trunk/src/libs/libxml2-2.9.2/include/libxml/xmlIO.h@ 64696

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1/*
2 * Summary: interface for the I/O interfaces used by the parser
3 * Description: interface for the I/O interfaces used by the parser
4 *
5 * Copy: See Copyright for the status of this software.
6 *
7 * Author: Daniel Veillard
8 */
9
10#ifndef __XML_IO_H__
11#define __XML_IO_H__
12
13#include <stdio.h>
14#include <libxml/xmlversion.h>
15
16#ifdef __cplusplus
17extern "C" {
18#endif
19
20/*
21 * Those are the functions and datatypes for the parser input
22 * I/O structures.
23 */
24
25/**
26 * xmlInputMatchCallback:
27 * @filename: the filename or URI
28 *
29 * Callback used in the I/O Input API to detect if the current handler
30 * can provide input fonctionnalities for this resource.
31 *
32 * Returns 1 if yes and 0 if another Input module should be used
33 */
34typedef int (XMLCALL *xmlInputMatchCallback) (char const *filename);
35/**
36 * xmlInputOpenCallback:
37 * @filename: the filename or URI
38 *
39 * Callback used in the I/O Input API to open the resource
40 *
41 * Returns an Input context or NULL in case or error
42 */
43typedef void * (XMLCALL *xmlInputOpenCallback) (char const *filename);
44/**
45 * xmlInputReadCallback:
46 * @context: an Input context
47 * @buffer: the buffer to store data read
48 * @len: the length of the buffer in bytes
49 *
50 * Callback used in the I/O Input API to read the resource
51 *
52 * Returns the number of bytes read or -1 in case of error
53 */
54typedef int (XMLCALL *xmlInputReadCallback) (void * context, char * buffer, int len);
55/**
56 * xmlInputCloseCallback:
57 * @context: an Input context
58 *
59 * Callback used in the I/O Input API to close the resource
60 *
61 * Returns 0 or -1 in case of error
62 */
63typedef int (XMLCALL *xmlInputCloseCallback) (void * context);
64
65#ifdef LIBXML_OUTPUT_ENABLED
66/*
67 * Those are the functions and datatypes for the library output
68 * I/O structures.
69 */
70
71/**
72 * xmlOutputMatchCallback:
73 * @filename: the filename or URI
74 *
75 * Callback used in the I/O Output API to detect if the current handler
76 * can provide output fonctionnalities for this resource.
77 *
78 * Returns 1 if yes and 0 if another Output module should be used
79 */
80typedef int (XMLCALL *xmlOutputMatchCallback) (char const *filename);
81/**
82 * xmlOutputOpenCallback:
83 * @filename: the filename or URI
84 *
85 * Callback used in the I/O Output API to open the resource
86 *
87 * Returns an Output context or NULL in case or error
88 */
89typedef void * (XMLCALL *xmlOutputOpenCallback) (char const *filename);
90/**
91 * xmlOutputWriteCallback:
92 * @context: an Output context
93 * @buffer: the buffer of data to write
94 * @len: the length of the buffer in bytes
95 *
96 * Callback used in the I/O Output API to write to the resource
97 *
98 * Returns the number of bytes written or -1 in case of error
99 */
100typedef int (XMLCALL *xmlOutputWriteCallback) (void * context, const char * buffer,
101 int len);
102/**
103 * xmlOutputCloseCallback:
104 * @context: an Output context
105 *
106 * Callback used in the I/O Output API to close the resource
107 *
108 * Returns 0 or -1 in case of error
109 */
110typedef int (XMLCALL *xmlOutputCloseCallback) (void * context);
111#endif /* LIBXML_OUTPUT_ENABLED */
112
113#ifdef __cplusplus
114}
115#endif
116
117#include <libxml/globals.h>
118#include <libxml/tree.h>
119#include <libxml/parser.h>
120#include <libxml/encoding.h>
121
122#ifdef __cplusplus
123extern "C" {
124#endif
125struct _xmlParserInputBuffer {
126 void* context;
127 xmlInputReadCallback readcallback;
128 xmlInputCloseCallback closecallback;
129
130 xmlCharEncodingHandlerPtr encoder; /* I18N conversions to UTF-8 */
131
132 xmlBufPtr buffer; /* Local buffer encoded in UTF-8 */
133 xmlBufPtr raw; /* if encoder != NULL buffer for raw input */
134 int compressed; /* -1=unknown, 0=not compressed, 1=compressed */
135 int error;
136 unsigned long rawconsumed;/* amount consumed from raw */
137};
138
139
140#ifdef LIBXML_OUTPUT_ENABLED
141struct _xmlOutputBuffer {
142 void* context;
143 xmlOutputWriteCallback writecallback;
144 xmlOutputCloseCallback closecallback;
145
146 xmlCharEncodingHandlerPtr encoder; /* I18N conversions to UTF-8 */
147
148 xmlBufPtr buffer; /* Local buffer encoded in UTF-8 or ISOLatin */
149 xmlBufPtr conv; /* if encoder != NULL buffer for output */
150 int written; /* total number of byte written */
151 int error;
152};
153#endif /* LIBXML_OUTPUT_ENABLED */
154
155/*
156 * Interfaces for input
157 */
158XMLPUBFUN void XMLCALL
159 xmlCleanupInputCallbacks (void);
160
161XMLPUBFUN int XMLCALL
162 xmlPopInputCallbacks (void);
163
164XMLPUBFUN void XMLCALL
165 xmlRegisterDefaultInputCallbacks (void);
166XMLPUBFUN xmlParserInputBufferPtr XMLCALL
167 xmlAllocParserInputBuffer (xmlCharEncoding enc);
168
169XMLPUBFUN xmlParserInputBufferPtr XMLCALL
170 xmlParserInputBufferCreateFilename (const char *URI,
171 xmlCharEncoding enc);
172XMLPUBFUN xmlParserInputBufferPtr XMLCALL
173 xmlParserInputBufferCreateFile (FILE *file,
174 xmlCharEncoding enc);
175XMLPUBFUN xmlParserInputBufferPtr XMLCALL
176 xmlParserInputBufferCreateFd (int fd,
177 xmlCharEncoding enc);
178XMLPUBFUN xmlParserInputBufferPtr XMLCALL
179 xmlParserInputBufferCreateMem (const char *mem, int size,
180 xmlCharEncoding enc);
181XMLPUBFUN xmlParserInputBufferPtr XMLCALL
182 xmlParserInputBufferCreateStatic (const char *mem, int size,
183 xmlCharEncoding enc);
184XMLPUBFUN xmlParserInputBufferPtr XMLCALL
185 xmlParserInputBufferCreateIO (xmlInputReadCallback ioread,
186 xmlInputCloseCallback ioclose,
187 void *ioctx,
188 xmlCharEncoding enc);
189XMLPUBFUN int XMLCALL
190 xmlParserInputBufferRead (xmlParserInputBufferPtr in,
191 int len);
192XMLPUBFUN int XMLCALL
193 xmlParserInputBufferGrow (xmlParserInputBufferPtr in,
194 int len);
195XMLPUBFUN int XMLCALL
196 xmlParserInputBufferPush (xmlParserInputBufferPtr in,
197 int len,
198 const char *buf);
199XMLPUBFUN void XMLCALL
200 xmlFreeParserInputBuffer (xmlParserInputBufferPtr in);
201XMLPUBFUN char * XMLCALL
202 xmlParserGetDirectory (const char *filename);
203
204XMLPUBFUN int XMLCALL
205 xmlRegisterInputCallbacks (xmlInputMatchCallback matchFunc,
206 xmlInputOpenCallback openFunc,
207 xmlInputReadCallback readFunc,
208 xmlInputCloseCallback closeFunc);
209
210xmlParserInputBufferPtr
211 __xmlParserInputBufferCreateFilename(const char *URI,
212 xmlCharEncoding enc);
213
214#ifdef LIBXML_OUTPUT_ENABLED
215/*
216 * Interfaces for output
217 */
218XMLPUBFUN void XMLCALL
219 xmlCleanupOutputCallbacks (void);
220XMLPUBFUN void XMLCALL
221 xmlRegisterDefaultOutputCallbacks(void);
222XMLPUBFUN xmlOutputBufferPtr XMLCALL
223 xmlAllocOutputBuffer (xmlCharEncodingHandlerPtr encoder);
224
225XMLPUBFUN xmlOutputBufferPtr XMLCALL
226 xmlOutputBufferCreateFilename (const char *URI,
227 xmlCharEncodingHandlerPtr encoder,
228 int compression);
229
230XMLPUBFUN xmlOutputBufferPtr XMLCALL
231 xmlOutputBufferCreateFile (FILE *file,
232 xmlCharEncodingHandlerPtr encoder);
233
234XMLPUBFUN xmlOutputBufferPtr XMLCALL
235 xmlOutputBufferCreateBuffer (xmlBufferPtr buffer,
236 xmlCharEncodingHandlerPtr encoder);
237
238XMLPUBFUN xmlOutputBufferPtr XMLCALL
239 xmlOutputBufferCreateFd (int fd,
240 xmlCharEncodingHandlerPtr encoder);
241
242XMLPUBFUN xmlOutputBufferPtr XMLCALL
243 xmlOutputBufferCreateIO (xmlOutputWriteCallback iowrite,
244 xmlOutputCloseCallback ioclose,
245 void *ioctx,
246 xmlCharEncodingHandlerPtr encoder);
247
248/* Couple of APIs to get the output without digging into the buffers */
249XMLPUBFUN const xmlChar * XMLCALL
250 xmlOutputBufferGetContent (xmlOutputBufferPtr out);
251XMLPUBFUN size_t XMLCALL
252 xmlOutputBufferGetSize (xmlOutputBufferPtr out);
253
254XMLPUBFUN int XMLCALL
255 xmlOutputBufferWrite (xmlOutputBufferPtr out,
256 int len,
257 const char *buf);
258XMLPUBFUN int XMLCALL
259 xmlOutputBufferWriteString (xmlOutputBufferPtr out,
260 const char *str);
261XMLPUBFUN int XMLCALL
262 xmlOutputBufferWriteEscape (xmlOutputBufferPtr out,
263 const xmlChar *str,
264 xmlCharEncodingOutputFunc escaping);
265
266XMLPUBFUN int XMLCALL
267 xmlOutputBufferFlush (xmlOutputBufferPtr out);
268XMLPUBFUN int XMLCALL
269 xmlOutputBufferClose (xmlOutputBufferPtr out);
270
271XMLPUBFUN int XMLCALL
272 xmlRegisterOutputCallbacks (xmlOutputMatchCallback matchFunc,
273 xmlOutputOpenCallback openFunc,
274 xmlOutputWriteCallback writeFunc,
275 xmlOutputCloseCallback closeFunc);
276
277xmlOutputBufferPtr
278 __xmlOutputBufferCreateFilename(const char *URI,
279 xmlCharEncodingHandlerPtr encoder,
280 int compression);
281
282#ifdef LIBXML_HTTP_ENABLED
283/* This function only exists if HTTP support built into the library */
284XMLPUBFUN void XMLCALL
285 xmlRegisterHTTPPostCallbacks (void );
286#endif /* LIBXML_HTTP_ENABLED */
287
288#endif /* LIBXML_OUTPUT_ENABLED */
289
290XMLPUBFUN xmlParserInputPtr XMLCALL
291 xmlCheckHTTPInput (xmlParserCtxtPtr ctxt,
292 xmlParserInputPtr ret);
293
294/*
295 * A predefined entity loader disabling network accesses
296 */
297XMLPUBFUN xmlParserInputPtr XMLCALL
298 xmlNoNetExternalEntityLoader (const char *URL,
299 const char *ID,
300 xmlParserCtxtPtr ctxt);
301
302/*
303 * xmlNormalizeWindowsPath is obsolete, don't use it.
304 * Check xmlCanonicPath in uri.h for a better alternative.
305 */
306XMLPUBFUN xmlChar * XMLCALL
307 xmlNormalizeWindowsPath (const xmlChar *path);
308
309XMLPUBFUN int XMLCALL
310 xmlCheckFilename (const char *path);
311/**
312 * Default 'file://' protocol callbacks
313 */
314XMLPUBFUN int XMLCALL
315 xmlFileMatch (const char *filename);
316XMLPUBFUN void * XMLCALL
317 xmlFileOpen (const char *filename);
318XMLPUBFUN int XMLCALL
319 xmlFileRead (void * context,
320 char * buffer,
321 int len);
322XMLPUBFUN int XMLCALL
323 xmlFileClose (void * context);
324
325/**
326 * Default 'http://' protocol callbacks
327 */
328#ifdef LIBXML_HTTP_ENABLED
329XMLPUBFUN int XMLCALL
330 xmlIOHTTPMatch (const char *filename);
331XMLPUBFUN void * XMLCALL
332 xmlIOHTTPOpen (const char *filename);
333#ifdef LIBXML_OUTPUT_ENABLED
334XMLPUBFUN void * XMLCALL
335 xmlIOHTTPOpenW (const char * post_uri,
336 int compression );
337#endif /* LIBXML_OUTPUT_ENABLED */
338XMLPUBFUN int XMLCALL
339 xmlIOHTTPRead (void * context,
340 char * buffer,
341 int len);
342XMLPUBFUN int XMLCALL
343 xmlIOHTTPClose (void * context);
344#endif /* LIBXML_HTTP_ENABLED */
345
346/**
347 * Default 'ftp://' protocol callbacks
348 */
349#ifdef LIBXML_FTP_ENABLED
350XMLPUBFUN int XMLCALL
351 xmlIOFTPMatch (const char *filename);
352XMLPUBFUN void * XMLCALL
353 xmlIOFTPOpen (const char *filename);
354XMLPUBFUN int XMLCALL
355 xmlIOFTPRead (void * context,
356 char * buffer,
357 int len);
358XMLPUBFUN int XMLCALL
359 xmlIOFTPClose (void * context);
360#endif /* LIBXML_FTP_ENABLED */
361
362#ifdef __cplusplus
363}
364#endif
365
366#endif /* __XML_IO_H__ */
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