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/*
* xmlIO.h : interface for the I/O interfaces used by the parser
*
* See Copyright for the status of this software.
*
* daniel@veillard.com
*
* 15 Nov 2000 ht - modified for VMS
*/
#ifndef __XML_IO_H__
#define __XML_IO_H__
#include <stdio.h>
#if defined(WIN32) && defined(_MSC_VER)
#include <libxml/xmlwin32version.h>
#else
#include <libxml/xmlversion.h>
#endif
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/encoding.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Those are the functions and datatypes for the parser input
* I/O structures.
*/
/**
* xmlInputMatchCallback:
* @filename: the filename or URI
*
* Callback used in the I/O Input API to detect if the current handler
* can provide input fonctionnalities for this resource.
*
* Returns 1 if yes and 0 if another Input module should be used
*/
typedef int (*xmlInputMatchCallback) (char const *filename);
/**
* xmlInputOpenCallback:
* @filename: the filename or URI
*
* Callback used in the I/O Input API to open the resource
*
* Returns an Input context or NULL in case or error
*/
typedef void * (*xmlInputOpenCallback) (char const *filename);
/**
* xmlInputReadCallback:
* @context: an Input context
* @buffer: the buffer to store data read
* @len: the length of the buffer in bytes
*
* Callback used in the I/O Input API to read the resource
*
* Returns the number of bytes read or -1 in case of error
*/
typedef int (*xmlInputReadCallback) (void * context, char * buffer, int len);
/**
* xmlInputCloseCallback:
* @context: an Input context
*
* Callback used in the I/O Input API to close the resource
*
* Returns 0 or -1 in case of error
*/
typedef int (*xmlInputCloseCallback) (void * context);
struct _xmlParserInputBuffer {
void* context;
xmlInputReadCallback readcallback;
xmlInputCloseCallback closecallback;
xmlCharEncodingHandlerPtr encoder; /* I18N conversions to UTF-8 */
xmlBufferPtr buffer; /* Local buffer encoded in UTF-8 */
xmlBufferPtr raw; /* if encoder != NULL buffer for raw input */
};
/*
* Those are the functions and datatypes for the library output
* I/O structures.
*/
/**
* xmlOutputMatchCallback:
* @filename: the filename or URI
*
* Callback used in the I/O Output API to detect if the current handler
* can provide output fonctionnalities for this resource.
*
* Returns 1 if yes and 0 if another Output module should be used
*/
typedef int (*xmlOutputMatchCallback) (char const *filename);
/**
* xmlOutputOpenCallback:
* @filename: the filename or URI
*
* Callback used in the I/O Output API to open the resource
*
* Returns an Output context or NULL in case or error
*/
typedef void * (*xmlOutputOpenCallback) (char const *filename);
/**
* xmlOutputWriteCallback:
* @context: an Output context
* @buffer: the buffer of data to write
* @len: the length of the buffer in bytes
*
* Callback used in the I/O Output API to write to the resource
*
* Returns the number of bytes written or -1 in case of error
*/
typedef int (*xmlOutputWriteCallback) (void * context, const char * buffer,
int len);
/**
* xmlOutputCloseCallback:
* @context: an Output context
*
* Callback used in the I/O Output API to close the resource
*
* Returns 0 or -1 in case of error
*/
typedef int (*xmlOutputCloseCallback) (void * context);
struct _xmlOutputBuffer {
void* context;
xmlOutputWriteCallback writecallback;
xmlOutputCloseCallback closecallback;
xmlCharEncodingHandlerPtr encoder; /* I18N conversions to UTF-8 */
xmlBufferPtr buffer; /* Local buffer encoded in UTF-8 or ISOLatin */
xmlBufferPtr conv; /* if encoder != NULL buffer for output */
int written; /* total number of byte written */
};
/*
* Interfaces for input
*/
void xmlCleanupInputCallbacks (void);
void xmlCleanupOutputCallbacks (void);
void xmlRegisterDefaultInputCallbacks (void);
xmlParserInputBufferPtr
xmlAllocParserInputBuffer (xmlCharEncoding enc);
#ifdef VMS
xmlParserInputBufferPtr
xmlParserInputBufferCreateFname (const char *URI,
xmlCharEncoding enc);
#define xmlParserInputBufferCreateFilename xmlParserInputBufferCreateFname
#else
xmlParserInputBufferPtr
xmlParserInputBufferCreateFilename (const char *URI,
xmlCharEncoding enc);
#endif
xmlParserInputBufferPtr
xmlParserInputBufferCreateFile (FILE *file,
xmlCharEncoding enc);
xmlParserInputBufferPtr
xmlParserInputBufferCreateFd (int fd,
xmlCharEncoding enc);
xmlParserInputBufferPtr
xmlParserInputBufferCreateMem (const char *mem, int size,
xmlCharEncoding enc);
xmlParserInputBufferPtr
xmlParserInputBufferCreateIO (xmlInputReadCallback ioread,
xmlInputCloseCallback ioclose,
void *ioctx,
xmlCharEncoding enc);
int xmlParserInputBufferRead (xmlParserInputBufferPtr in,
int len);
int xmlParserInputBufferGrow (xmlParserInputBufferPtr in,
int len);
int xmlParserInputBufferPush (xmlParserInputBufferPtr in,
int len,
const char *buf);
void xmlFreeParserInputBuffer (xmlParserInputBufferPtr in);
char * xmlParserGetDirectory (const char *filename);
int xmlRegisterInputCallbacks (xmlInputMatchCallback matchFunc,
xmlInputOpenCallback openFunc,
xmlInputReadCallback readFunc,
xmlInputCloseCallback closeFunc);
/*
* Interfaces for output
*/
void xmlRegisterDefaultOutputCallbacks(void);
xmlOutputBufferPtr
xmlAllocOutputBuffer (xmlCharEncodingHandlerPtr encoder);
xmlOutputBufferPtr
xmlOutputBufferCreateFilename (const char *URI,
xmlCharEncodingHandlerPtr encoder,
int compression);
xmlOutputBufferPtr
xmlOutputBufferCreateFile (FILE *file,
xmlCharEncodingHandlerPtr encoder);
xmlOutputBufferPtr
xmlOutputBufferCreateFd (int fd,
xmlCharEncodingHandlerPtr encoder);
xmlOutputBufferPtr
xmlOutputBufferCreateIO (xmlOutputWriteCallback iowrite,
xmlOutputCloseCallback ioclose,
void *ioctx,
xmlCharEncodingHandlerPtr encoder);
int xmlOutputBufferWrite (xmlOutputBufferPtr out,
int len,
const char *buf);
int xmlOutputBufferWriteString (xmlOutputBufferPtr out,
const char *str);
int xmlOutputBufferFlush (xmlOutputBufferPtr out);
int xmlOutputBufferClose (xmlOutputBufferPtr out);
int xmlRegisterOutputCallbacks (xmlOutputMatchCallback matchFunc,
xmlOutputOpenCallback openFunc,
xmlOutputWriteCallback writeFunc,
xmlOutputCloseCallback closeFunc);
/* This function only exists if HTTP support built into the library */
#ifdef LIBXML_HTTP_ENABLED
void * xmlIOHTTPOpenW (const char * post_uri,
int compression );
void xmlRegisterHTTPPostCallbacks (void );
#endif
/*
* A predefined entity loader disabling network accesses
*/
xmlParserInputPtr xmlNoNetExternalEntityLoader(const char *URL,
const char *ID,
xmlParserCtxtPtr ctxt);
#ifdef __cplusplus
}
#endif
#endif /* __XML_IO_H__ */
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