/*

 * Summary: interface for the I/O interfaces used by the parser

 * Description: interface for the I/O interfaces used by the parser

 *

 * Copy: See Copyright for the status of this software.

 *

 * Author: Daniel Veillard

 */

#ifndef __XML_IO_H__

#define __XML_IO_H__

#include <stdio.h>

#include <libxml/xmlversion.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 (XMLCALL *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 * (XMLCALL *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 (XMLCALL *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 (XMLCALL *xmlInputCloseCallback) (void * context);

#ifdef LIBXML_OUTPUT_ENABLED

/*

 * 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 (XMLCALL *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 * (XMLCALL *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 (XMLCALL *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 (XMLCALL *xmlOutputCloseCallback) (void * context);

#endif /* LIBXML_OUTPUT_ENABLED */

#ifdef __cplusplus

}

#endif

#include <libxml/globals.h>

#include <libxml/tree.h>

#include <libxml/parser.h>

#include <libxml/encoding.h>

#ifdef __cplusplus

extern "C" {

#endif

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 */

    int	compressed;	    /* -1=unknown, 0=not compressed, 1=compressed */

    int error;

    unsigned long rawconsumed;/* amount consumed from raw */

};

#ifdef LIBXML_OUTPUT_ENABLED

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 */

    int error;

};

#endif /* LIBXML_OUTPUT_ENABLED */

/*

 * Interfaces for input

 */

XMLPUBFUN void XMLCALL	

	xmlCleanupInputCallbacks		(void);

XMLPUBFUN int XMLCALL

	xmlPopInputCallbacks			(void);

XMLPUBFUN void XMLCALL	

	xmlRegisterDefaultInputCallbacks	(void);

XMLPUBFUN xmlParserInputBufferPtr XMLCALL

	xmlAllocParserInputBuffer		(xmlCharEncoding enc);

XMLPUBFUN xmlParserInputBufferPtr XMLCALL

	xmlParserInputBufferCreateFilename	(const char *URI,

                                                 xmlCharEncoding enc);

XMLPUBFUN xmlParserInputBufferPtr XMLCALL

	xmlParserInputBufferCreateFile		(FILE *file,

                                                 xmlCharEncoding enc);

XMLPUBFUN xmlParserInputBufferPtr XMLCALL

	xmlParserInputBufferCreateFd		(int fd,

	                                         xmlCharEncoding enc);

XMLPUBFUN xmlParserInputBufferPtr XMLCALL

	xmlParserInputBufferCreateMem		(const char *mem, int size,

	                                         xmlCharEncoding enc);

XMLPUBFUN xmlParserInputBufferPtr XMLCALL

	xmlParserInputBufferCreateStatic	(const char *mem, int size,

	                                         xmlCharEncoding enc);

XMLPUBFUN xmlParserInputBufferPtr XMLCALL

	xmlParserInputBufferCreateIO		(xmlInputReadCallback   ioread,

						 xmlInputCloseCallback  ioclose,

						 void *ioctx,

	                                         xmlCharEncoding enc);

XMLPUBFUN int XMLCALL	

	xmlParserInputBufferRead		(xmlParserInputBufferPtr in,

						 int len);

XMLPUBFUN int XMLCALL	

	xmlParserInputBufferGrow		(xmlParserInputBufferPtr in,

						 int len);

XMLPUBFUN int XMLCALL	

	xmlParserInputBufferPush		(xmlParserInputBufferPtr in,

						 int len,

						 const char *buf);

XMLPUBFUN void XMLCALL	

	xmlFreeParserInputBuffer		(xmlParserInputBufferPtr in);

XMLPUBFUN char * XMLCALL	

	xmlParserGetDirectory			(const char *filename);

XMLPUBFUN int XMLCALL     

	xmlRegisterInputCallbacks		(xmlInputMatchCallback matchFunc,

						 xmlInputOpenCallback openFunc,

						 xmlInputReadCallback readFunc,

						 xmlInputCloseCallback closeFunc);

xmlParserInputBufferPtr

	__xmlParserInputBufferCreateFilename(const char *URI,

										xmlCharEncoding enc);

#ifdef LIBXML_OUTPUT_ENABLED

/*

 * Interfaces for output

 */

XMLPUBFUN void XMLCALL	

	xmlCleanupOutputCallbacks		(void);

XMLPUBFUN void XMLCALL	

	xmlRegisterDefaultOutputCallbacks(void);

XMLPUBFUN xmlOutputBufferPtr XMLCALL

	xmlAllocOutputBuffer		(xmlCharEncodingHandlerPtr encoder);

XMLPUBFUN xmlOutputBufferPtr XMLCALL

	xmlOutputBufferCreateFilename	(const char *URI,

					 xmlCharEncodingHandlerPtr encoder,

					 int compression);

XMLPUBFUN xmlOutputBufferPtr XMLCALL

	xmlOutputBufferCreateFile	(FILE *file,

					 xmlCharEncodingHandlerPtr encoder);

XMLPUBFUN xmlOutputBufferPtr XMLCALL

	xmlOutputBufferCreateBuffer	(xmlBufferPtr buffer,

					 xmlCharEncodingHandlerPtr encoder);

XMLPUBFUN xmlOutputBufferPtr XMLCALL

	xmlOutputBufferCreateFd		(int fd,

					 xmlCharEncodingHandlerPtr encoder);

XMLPUBFUN xmlOutputBufferPtr XMLCALL

	xmlOutputBufferCreateIO		(xmlOutputWriteCallback   iowrite,

					 xmlOutputCloseCallback  ioclose,

					 void *ioctx,

					 xmlCharEncodingHandlerPtr encoder);

XMLPUBFUN int XMLCALL	

	xmlOutputBufferWrite		(xmlOutputBufferPtr out,

					 int len,

					 const char *buf);

XMLPUBFUN int XMLCALL	

	xmlOutputBufferWriteString	(xmlOutputBufferPtr out,

					 const char *str);

XMLPUBFUN int XMLCALL	

	xmlOutputBufferWriteEscape	(xmlOutputBufferPtr out,

					 const xmlChar *str,

					 xmlCharEncodingOutputFunc escaping);

XMLPUBFUN int XMLCALL	

	xmlOutputBufferFlush		(xmlOutputBufferPtr out);

XMLPUBFUN int XMLCALL	

	xmlOutputBufferClose		(xmlOutputBufferPtr out);

XMLPUBFUN int XMLCALL     

	xmlRegisterOutputCallbacks	(xmlOutputMatchCallback matchFunc,

					 xmlOutputOpenCallback openFunc,

					 xmlOutputWriteCallback writeFunc,

					 xmlOutputCloseCallback closeFunc);

xmlOutputBufferPtr

	__xmlOutputBufferCreateFilename(const char *URI,

                              xmlCharEncodingHandlerPtr encoder,

                              int compression);

#ifdef LIBXML_HTTP_ENABLED

/*  This function only exists if HTTP support built into the library  */

XMLPUBFUN void XMLCALL	

	xmlRegisterHTTPPostCallbacks	(void );

#endif /* LIBXML_HTTP_ENABLED */

#endif /* LIBXML_OUTPUT_ENABLED */

XMLPUBFUN xmlParserInputPtr XMLCALL

	xmlCheckHTTPInput		(xmlParserCtxtPtr ctxt,

					 xmlParserInputPtr ret);

/*

 * A predefined entity loader disabling network accesses

 */

XMLPUBFUN xmlParserInputPtr XMLCALL 

	xmlNoNetExternalEntityLoader	(const char *URL,

					 const char *ID,

					 xmlParserCtxtPtr ctxt);

/* 

 * xmlNormalizeWindowsPath is obsolete, don't use it. 

 * Check xmlCanonicPath in uri.h for a better alternative.

 */

XMLPUBFUN xmlChar * XMLCALL 

	xmlNormalizeWindowsPath		(const xmlChar *path);

XMLPUBFUN int XMLCALL	

	xmlCheckFilename		(const char *path);

/**

 * Default 'file://' protocol callbacks 

 */

XMLPUBFUN int XMLCALL	

	xmlFileMatch 			(const char *filename);

XMLPUBFUN void * XMLCALL	

	xmlFileOpen 			(const char *filename);

XMLPUBFUN int XMLCALL	

	xmlFileRead 			(void * context, 

					 char * buffer, 

					 int len);

XMLPUBFUN int XMLCALL	

	xmlFileClose 			(void * context);

/**

 * Default 'http://' protocol callbacks 

 */

#ifdef LIBXML_HTTP_ENABLED

XMLPUBFUN int XMLCALL	

	xmlIOHTTPMatch 			(const char *filename);

XMLPUBFUN void * XMLCALL	

	xmlIOHTTPOpen 			(const char *filename);

#ifdef LIBXML_OUTPUT_ENABLED

XMLPUBFUN void * XMLCALL	

	xmlIOHTTPOpenW			(const char * post_uri,

					 int   compression );

#endif /* LIBXML_OUTPUT_ENABLED */

XMLPUBFUN int XMLCALL 	

	xmlIOHTTPRead			(void * context, 

					 char * buffer, 

					 int len);

XMLPUBFUN int XMLCALL	

	xmlIOHTTPClose 			(void * context);

#endif /* LIBXML_HTTP_ENABLED */

/**

 * Default 'ftp://' protocol callbacks 

 */

#ifdef LIBXML_FTP_ENABLED 

XMLPUBFUN int XMLCALL	

	xmlIOFTPMatch 			(const char *filename);

XMLPUBFUN void * XMLCALL	

	xmlIOFTPOpen 			(const char *filename);

XMLPUBFUN int XMLCALL 	

	xmlIOFTPRead			(void * context, 

					 char * buffer, 

					 int len);

XMLPUBFUN int XMLCALL 	

	xmlIOFTPClose 			(void * context);

#endif /* LIBXML_FTP_ENABLED */

#ifdef __cplusplus

}

#endif

#endif /* __XML_IO_H__ */