/*
 	File:		DateTimeUtils.h
 
 	Contains:	International Date and Time Interfaces (previously in TextUtils)
 
 	Version:	Technology:	System 7.5
 				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 __DATETIMEUTILS__
#define __DATETIMEUTILS__

#ifndef __CONDITIONALMACROS__
#include <ConditionalMacros.h>
#endif
#ifndef __MACTYPES__
#include <MacTypes.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

/*

	Here are the current routine names and the translations to the older forms.
	Please use the newer forms in all new code and migrate the older names out of existing
	code as maintainance permits.
	
	New Name					Old Name(s)
	
	DateString					IUDatePString IUDateString 
	InitDateCache
	LongDateString				IULDateString
	LongTimeString				IULTimeString
	StringToDate				String2Date
	StringToTime								
	TimeString					IUTimeString IUTimePString
	LongDateToSeconds			LongDate2Secs
	LongSecondsToDate			LongSecs2Date
	DateToSeconds				Date2Secs
	SecondsToDate				Secs2Date
*/


enum {
																/* Toggle results */
	toggleUndefined				= 0,
	toggleOK					= 1,
	toggleBadField				= 2,
	toggleBadDelta				= 3,
	toggleBadChar				= 4,
	toggleUnknown				= 5,
	toggleBadNum				= 6,
	toggleOutOfRange			= 7,							/*synonym for toggleErr3*/
	toggleErr3					= 7,
	toggleErr4					= 8,
	toggleErr5					= 9
};


enum {
																/* Date equates */
	smallDateBit				= 31,							/*Restrict valid date/time to range of Time global*/
	togChar12HourBit			= 30,							/*If toggling hour by char, accept hours 1..12 only*/
	togCharZCycleBit			= 29,							/*Modifier for togChar12HourBit: accept hours 0..11 only*/
	togDelta12HourBit			= 28,							/*If toggling hour up/down, restrict to 12-hour range (am/pm)*/
	genCdevRangeBit				= 27,							/*Restrict date/time to range used by genl CDEV*/
	validDateFields				= -1,
	maxDateField				= 10
};


enum {
	eraMask						= 0x0001,
	yearMask					= 0x0002,
	monthMask					= 0x0004,
	dayMask						= 0x0008,
	hourMask					= 0x0010,
	minuteMask					= 0x0020,
	secondMask					= 0x0040,
	dayOfWeekMask				= 0x0080,
	dayOfYearMask				= 0x0100,
	weekOfYearMask				= 0x0200,
	pmMask						= 0x0400,
	dateStdMask					= 0x007F						/*default for ValidDate flags and ToggleDate TogglePB.togFlags*/
};


enum {
	eraField					= 0,
	yearField					= 1,
	monthField					= 2,
	dayField					= 3,
	hourField					= 4,
	minuteField					= 5,
	secondField					= 6,
	dayOfWeekField				= 7,
	dayOfYearField				= 8,
	weekOfYearField				= 9,
	pmField						= 10,
	res1Field					= 11,
	res2Field					= 12,
	res3Field					= 13
};

typedef SignedByte 						LongDateField;

enum {
	shortDate					= 0,
	longDate					= 1,
	abbrevDate					= 2
};

typedef SInt8 							DateForm;

enum {
																/* StringToDate status values */
	fatalDateTime				= 0x8000,						/* StringToDate and String2Time mask to a fatal error */
	longDateFound				= 1,							/* StringToDate mask to long date found */
	leftOverChars				= 2,							/* StringToDate & Time mask to warn of left over characters */
	sepNotIntlSep				= 4,							/* StringToDate & Time mask to warn of non-standard separators */
	fieldOrderNotIntl			= 8,							/* StringToDate & Time mask to warn of non-standard field order */
	extraneousStrings			= 16,							/* StringToDate & Time mask to warn of unparsable strings in text */
	tooManySeps					= 32,							/* StringToDate & Time mask to warn of too many separators */
	sepNotConsistent			= 64,							/* StringToDate & Time mask to warn of inconsistent separators */
	tokenErr					= 0x8100,						/* StringToDate & Time mask for 'tokenizer err encountered' */
	cantReadUtilities			= 0x8200,
	dateTimeNotFound			= 0x8400,
	dateTimeInvalid				= 0x8800
};

typedef short 							StringToDateStatus;
typedef short 							String2DateStatus;

struct DateCacheRecord {
	short 							hidden[256];				/* only for temporary use */
};
typedef struct DateCacheRecord			DateCacheRecord;

typedef DateCacheRecord *				DateCachePtr;

struct DateTimeRec {
	short 							year;
	short 							month;
	short 							day;
	short 							hour;
	short 							minute;
	short 							second;
	short 							dayOfWeek;
};
typedef struct DateTimeRec				DateTimeRec;

typedef SInt64 							LongDateTime;

union LongDateCvt {
	SInt64 							c;
	struct {
		UInt32 							lHigh;
		UInt32 							lLow;
	} 								hl;
};
typedef union LongDateCvt				LongDateCvt;

union LongDateRec {
	struct {
		short 							era;
		short 							year;
		short 							month;
		short 							day;
		short 							hour;
		short 							minute;
		short 							second;
		short 							dayOfWeek;
		short 							dayOfYear;
		short 							weekOfYear;
		short 							pm;
		short 							res1;
		short 							res2;
		short 							res3;
	} 								ld;
	short 							list[14];					/*Index by LongDateField!*/
	struct {
		short 							eraAlt;
		DateTimeRec 					oldDate;
	} 								od;
};
typedef union LongDateRec				LongDateRec;

typedef SInt8 							DateDelta;

struct TogglePB {
	long 							togFlags;					/*caller normally sets low word to dateStdMask=$7F*/
	ResType 						amChars;					/*from 'itl0', but uppercased*/
	ResType 						pmChars;					/*from 'itl0', but uppercased*/
	long 							reserved[4];
};
typedef struct TogglePB					TogglePB;

typedef short 							ToggleResults;
/*
 **************************************************************************************
 *
 * The following functions are new names that work on 68k and PowerPC
 *
 **************************************************************************************
*/

EXTERN_API( OSErr )
InitDateCache					(DateCachePtr 			theCache)							FOURWORDINLINE(0x2F3C, 0x8204, 0xFFF8, 0xA8B5);

EXTERN_API( StringToDateStatus )
StringToDate					(Ptr 					textPtr,
								 long 					textLen,
								 DateCachePtr 			theCache,
								 long *					lengthUsed,
								 LongDateRec *			dateTime)							FOURWORDINLINE(0x2F3C, 0x8214, 0xFFF6, 0xA8B5);

EXTERN_API( StringToDateStatus )
StringToTime					(Ptr 					textPtr,
								 long 					textLen,
								 DateCachePtr 			theCache,
								 long *					lengthUsed,
								 LongDateRec *			dateTime)							FOURWORDINLINE(0x2F3C, 0x8214, 0xFFF4, 0xA8B5);

EXTERN_API( void )
IUDateString					(long 					dateTime,
								 DateForm 				longFlag,
								 Str255 				result)								TWOWORDINLINE(0x4267, 0xA9ED);

EXTERN_API( void )
IUTimeString					(long 					dateTime,
								 Boolean 				wantSeconds,
								 Str255 				result)								THREEWORDINLINE(0x3F3C, 0x0002, 0xA9ED);

EXTERN_API( void )
IUDatePString					(long 					dateTime,
								 DateForm 				longFlag,
								 Str255 				result,
								 Handle 				intlHandle)							THREEWORDINLINE(0x3F3C, 0x000E, 0xA9ED);

EXTERN_API( void )
IUTimePString					(long 					dateTime,
								 Boolean 				wantSeconds,
								 Str255 				result,
								 Handle 				intlHandle)							THREEWORDINLINE(0x3F3C, 0x0010, 0xA9ED);

EXTERN_API( void )
IULDateString					(LongDateTime *			dateTime,
								 DateForm 				longFlag,
								 Str255 				result,
								 Handle 				intlHandle)							THREEWORDINLINE(0x3F3C, 0x0014, 0xA9ED);

EXTERN_API( void )
IULTimeString					(LongDateTime *			dateTime,
								 Boolean 				wantSeconds,
								 Str255 				result,
								 Handle 				intlHandle)							THREEWORDINLINE(0x3F3C, 0x0016, 0xA9ED);


EXTERN_API( void )
LongDateToSeconds				(const LongDateRec *	lDate,
								 LongDateTime *			lSecs)								FOURWORDINLINE(0x2F3C, 0x8008, 0xFFF2, 0xA8B5);

EXTERN_API( void )
LongSecondsToDate				(const LongDateTime *	lSecs,
								 LongDateRec *			lDate)								FOURWORDINLINE(0x2F3C, 0x8008, 0xFFF0, 0xA8B5);

EXTERN_API( ToggleResults )
ToggleDate						(LongDateTime *			lSecs,
								 LongDateField 			field,
								 DateDelta 				delta,
								 short 					ch,
								 const TogglePB *		params)								FOURWORDINLINE(0x2F3C, 0x820E, 0xFFEE, 0xA8B5);

EXTERN_API( short )
ValidDate						(const LongDateRec *	vDate,
								 long 					flags,
								 LongDateTime *			newSecs)							FOURWORDINLINE(0x2F3C, 0x820C, 0xFFE4, 0xA8B5);

																							#if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
																							#pragma parameter __D0 ReadDateTime(__A0)
																							#endif
EXTERN_API( OSErr )
ReadDateTime					(unsigned long *		time)								ONEWORDINLINE(0xA039);

																							#if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
																							#pragma parameter GetDateTime(__A0)
																							#endif
EXTERN_API( void )
GetDateTime						(unsigned long *		secs)								TWOWORDINLINE(0x20B8, 0x020C);

																							#if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
																							#pragma parameter __D0 SetDateTime(__D0)
																							#endif
EXTERN_API( OSErr )
SetDateTime						(unsigned long 			time)								ONEWORDINLINE(0xA03A);

																							#if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
																							#pragma parameter SetTime(__A0)
																							#endif
EXTERN_API( void )
SetTime							(const DateTimeRec *	d)									TWOWORDINLINE(0xA9C7, 0xA03A);

																							#if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
																							#pragma parameter GetTime(__A0)
																							#endif
EXTERN_API( void )
GetTime							(DateTimeRec *			d)									THREEWORDINLINE(0x2038, 0x020C, 0xA9C6);

EXTERN_API( void )
DateToSeconds					(const DateTimeRec *	d,
								 unsigned long *		secs);

																							#if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
																							#pragma parameter SecondsToDate(__D0, __A0)
																							#endif
EXTERN_API( void )
SecondsToDate					(unsigned long 			secs,
								 DateTimeRec *			d)									ONEWORDINLINE(0xA9C6);

/*
 **************************************************************************************
 *
 * The following are macros which map new names to the names exported by InterfaceLib
 *
 **************************************************************************************
*/
#define DateString(dateTime, longFlag, result, intlHandle) \
		 IUDatePString( dateTime, longFlag, result, intlHandle)
#define TimeString(dateTime, wantSeconds, result, intlHandle) \
		 IUTimePString(dateTime, wantSeconds, result, intlHandle)
#define LongDateString(dateTime, longFlag, result, intlHandle) \
		 IULDateString(dateTime, longFlag, result, intlHandle)
#define LongTimeString(dateTime, wantSeconds, result, intlHandle) \
		 IULTimeString(dateTime, wantSeconds, result, intlHandle)

/*
 **************************************************************************************
 *
 * The following are macros which map old names to the names exported by InterfaceLib
 *
 **************************************************************************************
*/
#if OLDROUTINENAMES
#define String2Date(textPtr, textLen, theCache, lengthUsed, dateTime)  \
		 StringToDate(textPtr, textLen, theCache, lengthUsed, dateTime)
#define String2Time(textPtr, textLen, theCache, lengthUsed, dateTime)  \
		 StringToTime(textPtr, textLen, theCache, lengthUsed, dateTime)
#define LongDate2Secs(lDate, lSecs) LongDateToSeconds(lDate, lSecs)
#define LongSecs2Date(lSecs, lDate) LongSecondsToDate(lSecs, lDate)
#define Date2Secs(d, secs) DateToSeconds(d, secs)
#define Secs2Date(secs, d) SecondsToDate(secs, d)
#if CGLUESUPPORTED
EXTERN_API_C( void )
iudatestring					(long 					dateTime,
								 DateForm 				longFlag,
								 char *					result);

EXTERN_API_C( void )
iudatepstring					(long 					dateTime,
								 DateForm 				longFlag,
								 char *					result,
								 Handle 				intlHandle);

EXTERN_API_C( void )
iutimestring					(long 					dateTime,
								 Boolean 				wantSeconds,
								 char *					result);

EXTERN_API_C( void )
iutimepstring					(long 					dateTime,
								 Boolean 				wantSeconds,
								 char *					result,
								 Handle 				intlHandle);

EXTERN_API_C( void )
iuldatestring					(LongDateTime *			dateTime,
								 DateForm 				longFlag,
								 char *					result,
								 Handle 				intlHandle);

EXTERN_API_C( void )
iultimestring					(LongDateTime *			dateTime,
								 Boolean 				wantSeconds,
								 char *					result,
								 Handle 				intlHandle);

#else
#endif  /* CGLUESUPPORTED */

#endif  /* OLDROUTINENAMES */






#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 /* __DATETIMEUTILS__ */

