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/*
* tclDate.h --
*
* This header file handles common usage of clock primitives
* between tclDate.c (yacc) and tclClock.c.
*
* Copyright (c) 2014 Serg G. Brester (aka sebres)
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#ifndef _TCLCLOCK_H
#define _TCLCLOCK_H
/*
* Structure containing the fields used in [clock format] and [clock scan]
*/
typedef struct TclDateFields {
Tcl_WideInt seconds; /* Time expressed in seconds from the Posix
* epoch */
Tcl_WideInt localSeconds; /* Local time expressed in nominal seconds
* from the Posix epoch */
int tzOffset; /* Time zone offset in seconds east of
* Greenwich */
Tcl_Obj *tzName; /* Time zone name (if set the refCount is incremented) */
Tcl_Obj *tzData; /* Time zone data object (internally referenced) */
int julianDay; /* Julian Day Number in local time zone */
enum {BCE=1, CE=0} era; /* Era */
int gregorian; /* Flag == 1 if the date is Gregorian */
int year; /* Year of the era */
int dayOfYear; /* Day of the year (1 January == 1) */
int month; /* Month number */
int dayOfMonth; /* Day of the month */
int iso8601Year; /* ISO8601 week-based year */
int iso8601Week; /* ISO8601 week number */
int dayOfWeek; /* Day of the week */
int hour; /* Hours of day (in-between time only calculation) */
int minutes; /* Minutes of day (in-between time only calculation) */
int secondOfDay; /* Seconds of day (in-between time only calculation) */
} TclDateFields;
/*
* Structure contains return parsed fields.
*/
typedef struct DateInfo {
TclDateFields date;
int dateHaveDate;
int dateMeridian;
int dateHaveTime;
time_t dateTimezone;
int dateDSTmode;
int dateHaveZone;
time_t dateRelMonth;
time_t dateRelDay;
time_t dateRelSeconds;
int dateHaveRel;
time_t dateMonthOrdinalIncr;
time_t dateMonthOrdinal;
int dateHaveOrdinalMonth;
time_t dateDayOrdinal;
time_t dateDayNumber;
int dateHaveDay;
const char *dateStart;
const char *dateInput;
time_t *dateRelPointer;
int dateDigitCount;
Tcl_Obj* messages; /* Error messages */
const char* separatrix; /* String separating messages */
} DateInfo;
#define yydate (info->date) /* Date fields used for converting */
#define yyDay (info->date.dayOfMonth)
#define yyMonth (info->date.month)
#define yyYear (info->date.year)
#define yyHour (info->date.hour)
#define yyMinutes (info->date.minutes)
#define yySeconds (info->date.secondOfDay)
#define yyDSTmode (info->dateDSTmode)
#define yyDayOrdinal (info->dateDayOrdinal)
#define yyDayNumber (info->dateDayNumber)
#define yyMonthOrdinalIncr (info->dateMonthOrdinalIncr)
#define yyMonthOrdinal (info->dateMonthOrdinal)
#define yyHaveDate (info->dateHaveDate)
#define yyHaveDay (info->dateHaveDay)
#define yyHaveOrdinalMonth (info->dateHaveOrdinalMonth)
#define yyHaveRel (info->dateHaveRel)
#define yyHaveTime (info->dateHaveTime)
#define yyHaveZone (info->dateHaveZone)
#define yyTimezone (info->dateTimezone)
#define yyMeridian (info->dateMeridian)
#define yyRelMonth (info->dateRelMonth)
#define yyRelDay (info->dateRelDay)
#define yyRelSeconds (info->dateRelSeconds)
#define yyRelPointer (info->dateRelPointer)
#define yyInput (info->dateInput)
#define yyDigitCount (info->dateDigitCount)
enum {CL_INVALIDATE = (signed int)0x80000000};
/*
* Structure containing the command arguments supplied to [clock format] and [clock scan]
*/
typedef struct ClockFmtScnCmdArgs {
Tcl_Obj *formatObj; /* Format */
Tcl_Obj *localeObj; /* Name of the locale where the time will be expressed. */
Tcl_Obj *timezoneObj; /* Default time zone in which the time will be expressed */
Tcl_Obj *baseObj; /* Base (scan only) */
} ClockFmtScnCmdArgs;
/*
* Meridian: am, pm, or 24-hour style.
*/
typedef enum _MERIDIAN {
MERam, MERpm, MER24
} MERIDIAN;
/*
* Clock scan and format facilities.
*/
#define CLOCK_FMT_SCN_STORAGE_GC_SIZE 32
#define CLOCK_MIN_TOK_CHAIN_BLOCK_SIZE 12
typedef enum _CLCKTOK_TYPE {
CTOKT_EOB=0, CTOKT_DIGIT, CTOKT_SPACE
} CLCKTOK_TYPE;
typedef struct ClockFmtScnStorage ClockFmtScnStorage;
typedef struct ClockFormatToken {
CLCKTOK_TYPE type;
} ClockFormatToken;
typedef struct ClockScanToken {
unsigned short int type;
unsigned short int minSize;
unsigned short int maxSize;
unsigned short int offs;
} ClockScanToken;
typedef struct ClockFmtScnStorage {
int objRefCount; /* Reference count shared across threads */
ClockScanToken **scnTok;
unsigned int scnTokC;
ClockFormatToken **fmtTok;
unsigned int fmtTokC;
#if CLOCK_FMT_SCN_STORAGE_GC_SIZE > 0
ClockFmtScnStorage *nextPtr;
ClockFmtScnStorage *prevPtr;
#endif
/* +Tcl_HashEntry hashEntry /* ClockFmtScnStorage is a derivate of Tcl_HashEntry,
* stored by offset +sizeof(self) */
} ClockFmtScnStorage;
typedef struct ClockLitStorage {
int dummy;
} ClockLitStorage;
/*
* Prototypes of module functions.
*/
MODULE_SCOPE time_t ToSeconds(time_t Hours, time_t Minutes,
time_t Seconds, MERIDIAN Meridian);
MODULE_SCOPE int TclClockFreeScan(Tcl_Interp *interp, DateInfo *info);
/* tclClockFmt.c module declarations */
MODULE_SCOPE ClockFmtScnStorage *
Tcl_GetClockFrmScnFromObj(Tcl_Interp *interp,
Tcl_Obj *objPtr);
MODULE_SCOPE int ClockScan(ClientData clientData, Tcl_Interp *interp,
TclDateFields *date, Tcl_Obj *strObj,
ClockFmtScnCmdArgs *opts);
/*
* Other externals.
*/
MODULE_SCOPE unsigned long TclEnvEpoch; /* Epoch of the tcl environment
* (if changed with tcl-env). */
#endif /* _TCLCLOCK_H */
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