/*
 	File:		TextEncodingConverter.h
 
 	Contains:	Text Encoding Conversion Interfaces. 
 
 	Version:	Technology:	Mac OS 8
 				Release:	QuickTime 4.0
 
 	Copyright:	(c) 1994-1998 by Apple Computer, Inc., all rights reserved.
 
 	Bugs?:		For bug reports, consult the following page on
 				the World Wide Web:
 
 					http://developer.apple.com/bugreporter/
 
*/
#ifndef __TEXTENCODINGCONVERTER__
#define __TEXTENCODINGCONVERTER__

#ifndef __MACTYPES__
#include <MacTypes.h>
#endif
#ifndef __TEXTCOMMON__
#include <TextCommon.h>
#endif



#if PRAGMA_ONCE
#pragma once
#endif

#ifdef __cplusplus
extern "C" {
#endif

#if PRAGMA_IMPORT
#pragma import on
#endif

#if PRAGMA_STRUCT_ALIGN
	#pragma options align=mac68k
#elif PRAGMA_STRUCT_PACKPUSH
	#pragma pack(push, 2)
#elif PRAGMA_STRUCT_PACK
	#pragma pack(2)
#endif

typedef OSType 							TECPluginSignature;
typedef UInt32 							TECPluginVersion;
/* plugin signatures */

enum {
	kTECSignature				= FOUR_CHAR_CODE('encv'),
	kTECUnicodePluginSignature	= FOUR_CHAR_CODE('puni'),
	kTECJapanesePluginSignature	= FOUR_CHAR_CODE('pjpn'),
	kTECChinesePluginSignature	= FOUR_CHAR_CODE('pzho'),
	kTECKoreanPluginSignature	= FOUR_CHAR_CODE('pkor')
};


/* converter object reference */
typedef struct OpaqueTECObjectRef* 		TECObjectRef;
typedef struct OpaqueTECSnifferObjectRef*  TECSnifferObjectRef;
typedef OSType 							TECPluginSig;

struct TECConversionInfo {
	TextEncoding 					sourceEncoding;
	TextEncoding 					destinationEncoding;
	UInt16 							reserved1;
	UInt16 							reserved2;
};
typedef struct TECConversionInfo		TECConversionInfo;
/* return number of encodings types supported by user's configuraton of the encoding converter */
EXTERN_API( OSStatus )
TECCountAvailableTextEncodings	(ItemCount *			numberEncodings);

/* fill in an array of type TextEncoding passed in by the user with types of encodings the current configuration of the encoder can handle. */
EXTERN_API( OSStatus )
TECGetAvailableTextEncodings	(TextEncoding 			availableEncodings[],
								 ItemCount 				maxAvailableEncodings,
								 ItemCount *			actualAvailableEncodings);

/* return number of from-to encoding conversion pairs supported  */
EXTERN_API( OSStatus )
TECCountDirectTextEncodingConversions (ItemCount *		numberOfEncodings);

/* fill in an array of type TextEncodingPair passed in by the user with types of encoding pairs the current configuration of the encoder can handle. */
EXTERN_API( OSStatus )
TECGetDirectTextEncodingConversions (TECConversionInfo 	availableConversions[],
								 ItemCount 				maxAvailableConversions,
								 ItemCount *			actualAvailableConversions);

/* return number of encodings a given encoding can be converter into */
EXTERN_API( OSStatus )
TECCountDestinationTextEncodings (TextEncoding 			inputEncoding,
								 ItemCount *			numberOfEncodings);

/* fill in an array of type TextEncodingPair passed in by the user with types of encodings pairs the current configuration of the encoder can handle. */
EXTERN_API( OSStatus )
TECGetDestinationTextEncodings	(TextEncoding 			inputEncoding,
								 TextEncoding 			destinationEncodings[],
								 ItemCount 				maxDestinationEncodings,
								 ItemCount *			actualDestinationEncodings);

/* get info about a text encoding */
EXTERN_API( OSStatus )
TECGetTextEncodingInternetName	(TextEncoding 			textEncoding,
								 Str255 				encodingName);

EXTERN_API( OSStatus )
TECGetTextEncodingFromInternetName (TextEncoding *		textEncoding,
								 ConstStr255Param 		encodingName);

/* create/dispose converters */
EXTERN_API( OSStatus )
TECCreateConverter				(TECObjectRef *			newEncodingConverter,
								 TextEncoding 			inputEncoding,
								 TextEncoding 			outputEncoding);

EXTERN_API( OSStatus )
TECCreateConverterFromPath		(TECObjectRef *			newEncodingConverter,
								 const TextEncoding 	inPath[],
								 ItemCount 				inEncodings);

EXTERN_API( OSStatus )
TECDisposeConverter				(TECObjectRef 			newEncodingConverter);

/* convert text encodings */
EXTERN_API( OSStatus )
TECClearConverterContextInfo	(TECObjectRef 			encodingConverter);

EXTERN_API( OSStatus )
TECConvertText					(TECObjectRef 			encodingConverter,
								 ConstTextPtr 			inputBuffer,
								 ByteCount 				inputBufferLength,
								 ByteCount *			actualInputLength,
								 TextPtr 				outputBuffer,
								 ByteCount 				outputBufferLength,
								 ByteCount *			actualOutputLength);

EXTERN_API( OSStatus )
TECFlushText					(TECObjectRef 			encodingConverter,
								 TextPtr 				outputBuffer,
								 ByteCount 				outputBufferLength,
								 ByteCount *			actualOutputLength);

/* one-to-many routines */
EXTERN_API( OSStatus )
TECCountSubTextEncodings		(TextEncoding 			inputEncoding,
								 ItemCount *			numberOfEncodings);

EXTERN_API( OSStatus )
TECGetSubTextEncodings			(TextEncoding 			inputEncoding,
								 TextEncoding 			subEncodings[],
								 ItemCount 				maxSubEncodings,
								 ItemCount *			actualSubEncodings);

EXTERN_API( OSStatus )
TECGetEncodingList				(TECObjectRef 			encodingConverter,
								 ItemCount *			numEncodings,
								 Handle *				encodingList);

EXTERN_API( OSStatus )
TECCreateOneToManyConverter		(TECObjectRef *			newEncodingConverter,
								 TextEncoding 			inputEncoding,
								 ItemCount 				numOutputEncodings,
								 const TextEncoding 	outputEncodings[]);


EXTERN_API( OSStatus )
TECConvertTextToMultipleEncodings (TECObjectRef 		encodingConverter,
								 ConstTextPtr 			inputBuffer,
								 ByteCount 				inputBufferLength,
								 ByteCount *			actualInputLength,
								 TextPtr 				outputBuffer,
								 ByteCount 				outputBufferLength,
								 ByteCount *			actualOutputLength,
								 TextEncodingRun 		outEncodingsBuffer[],
								 ItemCount 				maxOutEncodingRuns,
								 ItemCount *			actualOutEncodingRuns);

EXTERN_API( OSStatus )
TECFlushMultipleEncodings		(TECObjectRef 			encodingConverter,
								 TextPtr 				outputBuffer,
								 ByteCount 				outputBufferLength,
								 ByteCount *			actualOutputLength,
								 TextEncodingRun 		outEncodingsBuffer[],
								 ItemCount 				maxOutEncodingRuns,
								 ItemCount *			actualOutEncodingRuns);

/* international internet info */
EXTERN_API( OSStatus )
TECCountWebTextEncodings		(RegionCode 			locale,
								 ItemCount *			numberEncodings);

EXTERN_API( OSStatus )
TECGetWebTextEncodings			(RegionCode 			locale,
								 TextEncoding 			availableEncodings[],
								 ItemCount 				maxAvailableEncodings,
								 ItemCount *			actualAvailableEncodings);

EXTERN_API( OSStatus )
TECCountMailTextEncodings		(RegionCode 			locale,
								 ItemCount *			numberEncodings);

EXTERN_API( OSStatus )
TECGetMailTextEncodings			(RegionCode 			locale,
								 TextEncoding 			availableEncodings[],
								 ItemCount 				maxAvailableEncodings,
								 ItemCount *			actualAvailableEncodings);

/* examine text encodings */
EXTERN_API( OSStatus )
TECCountAvailableSniffers		(ItemCount *			numberOfEncodings);

EXTERN_API( OSStatus )
TECGetAvailableSniffers			(TextEncoding 			availableSniffers[],
								 ItemCount 				maxAvailableSniffers,
								 ItemCount *			actualAvailableSniffers);

EXTERN_API( OSStatus )
TECCreateSniffer				(TECSnifferObjectRef *	encodingSniffer,
								 TextEncoding 			testEncodings[],
								 ItemCount 				numTextEncodings);

EXTERN_API( OSStatus )
TECSniffTextEncoding			(TECSnifferObjectRef 	encodingSniffer,
								 TextPtr 				inputBuffer,
								 ByteCount 				inputBufferLength,
								 TextEncoding 			testEncodings[],
								 ItemCount 				numTextEncodings,
								 ItemCount 				numErrsArray[],
								 ItemCount 				maxErrs,
								 ItemCount 				numFeaturesArray[],
								 ItemCount 				maxFeatures);

EXTERN_API( OSStatus )
TECDisposeSniffer				(TECSnifferObjectRef 	encodingSniffer);

EXTERN_API( OSStatus )
TECClearSnifferContextInfo		(TECSnifferObjectRef 	encodingSniffer);




#if PRAGMA_STRUCT_ALIGN
	#pragma options align=reset
#elif PRAGMA_STRUCT_PACKPUSH
	#pragma pack(pop)
#elif PRAGMA_STRUCT_PACK
	#pragma pack()
#endif

#ifdef PRAGMA_IMPORT_OFF
#pragma import off
#elif PRAGMA_IMPORT
#pragma import reset
#endif

#ifdef __cplusplus
}
#endif

#endif /* __TEXTENCODINGCONVERTER__ */