tclDate.c
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上传日期:2015-12-11
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- /*
- * tclDate.c --
- *
- * This file is generated from a yacc grammar defined in
- * the file tclGetDate.y. It should not be edited directly.
- *
- * Copyright (c) 1992-1995 Karl Lehenbauer and Mark Diekhans.
- * Copyright (c) 1995-1997 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tclDate.c,v 1.20.4.3 2006/06/14 15:21:14 patthoyts Exp $
- */
- #include "tclInt.h"
- #include "tclPort.h"
- #if defined(MAC_TCL) && !defined(TCL_MAC_USE_MSL_EPOCH)
- # define EPOCH 1904
- # define START_OF_TIME 1904
- # define END_OF_TIME 2039
- #else
- # define EPOCH 1970
- # define START_OF_TIME 1902
- # define END_OF_TIME 2037
- #endif
- /*
- * The offset of tm_year of struct tm returned by localtime, gmtime, etc.
- * I don't know how universal this is; K&R II, the NetBSD manpages, and
- * ../compat/strftime.c all agree that tm_year is the year-1900. However,
- * some systems may have a different value. This #define should be the
- * same as in ../compat/strftime.c.
- */
- #define TM_YEAR_BASE 1900
- #define HOUR(x) ((int) (60 * x))
- #define SECSPERDAY (24L * 60L * 60L)
- #define IsLeapYear(x) ((x % 4 == 0) && (x % 100 != 0 || x % 400 == 0))
- /*
- * An entry in the lexical lookup table.
- */
- typedef struct _TABLE {
- char *name;
- int type;
- time_t value;
- } TABLE;
- /*
- * Daylight-savings mode: on, off, or not yet known.
- */
- typedef enum _DSTMODE {
- DSTon, DSToff, DSTmaybe
- } DSTMODE;
- /*
- * Meridian: am, pm, or 24-hour style.
- */
- typedef enum _MERIDIAN {
- MERam, MERpm, MER24
- } MERIDIAN;
- /*
- * Global variables. We could get rid of most of these by using a good
- * union as the yacc stack. (This routine was originally written before
- * yacc had the %union construct.) Maybe someday; right now we only use
- * the %union very rarely.
- */
- static char *TclDateInput;
- static DSTMODE TclDateDSTmode;
- static time_t TclDateDayOrdinal;
- static time_t TclDateDayNumber;
- static time_t TclDateMonthOrdinal;
- static int TclDateHaveDate;
- static int TclDateHaveDay;
- static int TclDateHaveOrdinalMonth;
- static int TclDateHaveRel;
- static int TclDateHaveTime;
- static int TclDateHaveZone;
- static time_t TclDateTimezone;
- static time_t TclDateDay;
- static time_t TclDateHour;
- static time_t TclDateMinutes;
- static time_t TclDateMonth;
- static time_t TclDateSeconds;
- static time_t TclDateYear;
- static MERIDIAN TclDateMeridian;
- static time_t TclDateRelMonth;
- static time_t TclDateRelDay;
- static time_t TclDateRelSeconds;
- static time_t *TclDateRelPointer;
- /*
- * Prototypes of internal functions.
- */
- static void TclDateerror _ANSI_ARGS_((char *s));
- static time_t ToSeconds _ANSI_ARGS_((time_t Hours, time_t Minutes,
- time_t Seconds, MERIDIAN Meridian));
- static int Convert _ANSI_ARGS_((time_t Month, time_t Day, time_t Year,
- time_t Hours, time_t Minutes, time_t Seconds,
- MERIDIAN Meridia, DSTMODE DSTmode, time_t *TimePtr));
- static time_t DSTcorrect _ANSI_ARGS_((time_t Start, time_t Future));
- static time_t NamedDay _ANSI_ARGS_((time_t Start, time_t DayOrdinal,
- time_t DayNumber));
- static time_t NamedMonth _ANSI_ARGS_((time_t Start, time_t MonthOrdinal,
- time_t MonthNumber));
- static int RelativeMonth _ANSI_ARGS_((time_t Start, time_t RelMonth,
- time_t *TimePtr));
- static int RelativeDay _ANSI_ARGS_((time_t Start, time_t RelDay,
- time_t *TimePtr));
- static int LookupWord _ANSI_ARGS_((char *buff));
- static int TclDatelex _ANSI_ARGS_((void));
- int
- TclDateparse _ANSI_ARGS_((void));
- typedef union
- #ifdef __cplusplus
- YYSTYPE
- #endif
- {
- time_t Number;
- enum _MERIDIAN Meridian;
- } YYSTYPE;
- # define tAGO 257
- # define tDAY 258
- # define tDAYZONE 259
- # define tID 260
- # define tMERIDIAN 261
- # define tMINUTE_UNIT 262
- # define tMONTH 263
- # define tMONTH_UNIT 264
- # define tSTARDATE 265
- # define tSEC_UNIT 266
- # define tSNUMBER 267
- # define tUNUMBER 268
- # define tZONE 269
- # define tEPOCH 270
- # define tDST 271
- # define tISOBASE 272
- # define tDAY_UNIT 273
- # define tNEXT 274
- #if defined(__cplusplus) || defined(__STDC__)
- #if defined(__cplusplus) && defined(__EXTERN_C__)
- extern "C" {
- #endif
- #ifndef TclDateerror
- #if defined(__cplusplus)
- void TclDateerror(CONST char *);
- #endif
- #endif
- #ifndef TclDatelex
- int TclDatelex(void);
- #endif
- int TclDateparse(void);
- #if defined(__cplusplus) && defined(__EXTERN_C__)
- }
- #endif
- #endif
- #define TclDateclearin TclDatechar = -1
- #define TclDateerrok TclDateerrflag = 0
- extern int TclDatechar;
- extern int TclDateerrflag;
- YYSTYPE TclDatelval;
- YYSTYPE TclDateval;
- typedef int TclDatetabelem;
- #ifndef YYMAXDEPTH
- #define YYMAXDEPTH 150
- #endif
- #if YYMAXDEPTH > 0
- int TclDate_TclDates[YYMAXDEPTH], *TclDates = TclDate_TclDates;
- YYSTYPE TclDate_TclDatev[YYMAXDEPTH], *TclDatev = TclDate_TclDatev;
- #else /* user does initial allocation */
- int *TclDates;
- YYSTYPE *TclDatev;
- #endif
- static int TclDatemaxdepth = YYMAXDEPTH;
- # define YYERRCODE 256
- /*
- * Month and day table.
- */
- static TABLE MonthDayTable[] = {
- { "january", tMONTH, 1 },
- { "february", tMONTH, 2 },
- { "march", tMONTH, 3 },
- { "april", tMONTH, 4 },
- { "may", tMONTH, 5 },
- { "june", tMONTH, 6 },
- { "july", tMONTH, 7 },
- { "august", tMONTH, 8 },
- { "september", tMONTH, 9 },
- { "sept", tMONTH, 9 },
- { "october", tMONTH, 10 },
- { "november", tMONTH, 11 },
- { "december", tMONTH, 12 },
- { "sunday", tDAY, 0 },
- { "monday", tDAY, 1 },
- { "tuesday", tDAY, 2 },
- { "tues", tDAY, 2 },
- { "wednesday", tDAY, 3 },
- { "wednes", tDAY, 3 },
- { "thursday", tDAY, 4 },
- { "thur", tDAY, 4 },
- { "thurs", tDAY, 4 },
- { "friday", tDAY, 5 },
- { "saturday", tDAY, 6 },
- { NULL }
- };
- /*
- * Time units table.
- */
- static TABLE UnitsTable[] = {
- { "year", tMONTH_UNIT, 12 },
- { "month", tMONTH_UNIT, 1 },
- { "fortnight", tDAY_UNIT, 14 },
- { "week", tDAY_UNIT, 7 },
- { "day", tDAY_UNIT, 1 },
- { "hour", tSEC_UNIT, 60 * 60 },
- { "minute", tSEC_UNIT, 60 },
- { "min", tSEC_UNIT, 60 },
- { "second", tSEC_UNIT, 1 },
- { "sec", tSEC_UNIT, 1 },
- { NULL }
- };
- /*
- * Assorted relative-time words.
- */
- static TABLE OtherTable[] = {
- { "tomorrow", tDAY_UNIT, 1 },
- { "yesterday", tDAY_UNIT, -1 },
- { "today", tDAY_UNIT, 0 },
- { "now", tSEC_UNIT, 0 },
- { "last", tUNUMBER, -1 },
- { "this", tSEC_UNIT, 0 },
- { "next", tNEXT, 1 },
- #if 0
- { "first", tUNUMBER, 1 },
- { "second", tUNUMBER, 2 },
- { "third", tUNUMBER, 3 },
- { "fourth", tUNUMBER, 4 },
- { "fifth", tUNUMBER, 5 },
- { "sixth", tUNUMBER, 6 },
- { "seventh", tUNUMBER, 7 },
- { "eighth", tUNUMBER, 8 },
- { "ninth", tUNUMBER, 9 },
- { "tenth", tUNUMBER, 10 },
- { "eleventh", tUNUMBER, 11 },
- { "twelfth", tUNUMBER, 12 },
- #endif
- { "ago", tAGO, 1 },
- { "epoch", tEPOCH, 0 },
- { "stardate", tSTARDATE, 0},
- { NULL }
- };
- /*
- * The timezone table. (Note: This table was modified to not use any floating
- * point constants to work around an SGI compiler bug).
- */
- static TABLE TimezoneTable[] = {
- { "gmt", tZONE, HOUR( 0) }, /* Greenwich Mean */
- { "ut", tZONE, HOUR( 0) }, /* Universal (Coordinated) */
- { "utc", tZONE, HOUR( 0) },
- { "uct", tZONE, HOUR( 0) }, /* Universal Coordinated Time */
- { "wet", tZONE, HOUR( 0) }, /* Western European */
- { "bst", tDAYZONE, HOUR( 0) }, /* British Summer */
- { "wat", tZONE, HOUR( 1) }, /* West Africa */
- { "at", tZONE, HOUR( 2) }, /* Azores */
- #if 0
- /* For completeness. BST is also British Summer, and GST is
- * also Guam Standard. */
- { "bst", tZONE, HOUR( 3) }, /* Brazil Standard */
- { "gst", tZONE, HOUR( 3) }, /* Greenland Standard */
- #endif
- { "nft", tZONE, HOUR( 7/2) }, /* Newfoundland */
- { "nst", tZONE, HOUR( 7/2) }, /* Newfoundland Standard */
- { "ndt", tDAYZONE, HOUR( 7/2) }, /* Newfoundland Daylight */
- { "ast", tZONE, HOUR( 4) }, /* Atlantic Standard */
- { "adt", tDAYZONE, HOUR( 4) }, /* Atlantic Daylight */
- { "est", tZONE, HOUR( 5) }, /* Eastern Standard */
- { "edt", tDAYZONE, HOUR( 5) }, /* Eastern Daylight */
- { "cst", tZONE, HOUR( 6) }, /* Central Standard */
- { "cdt", tDAYZONE, HOUR( 6) }, /* Central Daylight */
- { "mst", tZONE, HOUR( 7) }, /* Mountain Standard */
- { "mdt", tDAYZONE, HOUR( 7) }, /* Mountain Daylight */
- { "pst", tZONE, HOUR( 8) }, /* Pacific Standard */
- { "pdt", tDAYZONE, HOUR( 8) }, /* Pacific Daylight */
- { "yst", tZONE, HOUR( 9) }, /* Yukon Standard */
- { "ydt", tDAYZONE, HOUR( 9) }, /* Yukon Daylight */
- { "hst", tZONE, HOUR(10) }, /* Hawaii Standard */
- { "hdt", tDAYZONE, HOUR(10) }, /* Hawaii Daylight */
- { "cat", tZONE, HOUR(10) }, /* Central Alaska */
- { "ahst", tZONE, HOUR(10) }, /* Alaska-Hawaii Standard */
- { "nt", tZONE, HOUR(11) }, /* Nome */
- { "idlw", tZONE, HOUR(12) }, /* International Date Line West */
- { "cet", tZONE, -HOUR( 1) }, /* Central European */
- { "cest", tDAYZONE, -HOUR( 1) }, /* Central European Summer */
- { "met", tZONE, -HOUR( 1) }, /* Middle European */
- { "mewt", tZONE, -HOUR( 1) }, /* Middle European Winter */
- { "mest", tDAYZONE, -HOUR( 1) }, /* Middle European Summer */
- { "swt", tZONE, -HOUR( 1) }, /* Swedish Winter */
- { "sst", tDAYZONE, -HOUR( 1) }, /* Swedish Summer */
- { "fwt", tZONE, -HOUR( 1) }, /* French Winter */
- { "fst", tDAYZONE, -HOUR( 1) }, /* French Summer */
- { "eet", tZONE, -HOUR( 2) }, /* Eastern Europe, USSR Zone 1 */
- { "bt", tZONE, -HOUR( 3) }, /* Baghdad, USSR Zone 2 */
- { "it", tZONE, -HOUR( 7/2) }, /* Iran */
- { "zp4", tZONE, -HOUR( 4) }, /* USSR Zone 3 */
- { "zp5", tZONE, -HOUR( 5) }, /* USSR Zone 4 */
- { "ist", tZONE, -HOUR(11/2) }, /* Indian Standard */
- { "zp6", tZONE, -HOUR( 6) }, /* USSR Zone 5 */
- #if 0
- /* For completeness. NST is also Newfoundland Stanard, nad SST is
- * also Swedish Summer. */
- { "nst", tZONE, -HOUR(13/2) }, /* North Sumatra */
- { "sst", tZONE, -HOUR( 7) }, /* South Sumatra, USSR Zone 6 */
- #endif /* 0 */
- { "wast", tZONE, -HOUR( 7) }, /* West Australian Standard */
- { "wadt", tDAYZONE, -HOUR( 7) }, /* West Australian Daylight */
- { "jt", tZONE, -HOUR(15/2) }, /* Java (3pm in Cronusland!) */
- { "cct", tZONE, -HOUR( 8) }, /* China Coast, USSR Zone 7 */
- { "jst", tZONE, -HOUR( 9) }, /* Japan Standard, USSR Zone 8 */
- { "jdt", tDAYZONE, -HOUR( 9) }, /* Japan Daylight */
- { "kst", tZONE, -HOUR( 9) }, /* Korea Standard */
- { "kdt", tDAYZONE, -HOUR( 9) }, /* Korea Daylight */
- { "cast", tZONE, -HOUR(19/2) }, /* Central Australian Standard */
- { "cadt", tDAYZONE, -HOUR(19/2) }, /* Central Australian Daylight */
- { "east", tZONE, -HOUR(10) }, /* Eastern Australian Standard */
- { "eadt", tDAYZONE, -HOUR(10) }, /* Eastern Australian Daylight */
- { "gst", tZONE, -HOUR(10) }, /* Guam Standard, USSR Zone 9 */
- { "nzt", tZONE, -HOUR(12) }, /* New Zealand */
- { "nzst", tZONE, -HOUR(12) }, /* New Zealand Standard */
- { "nzdt", tDAYZONE, -HOUR(12) }, /* New Zealand Daylight */
- { "idle", tZONE, -HOUR(12) }, /* International Date Line East */
- /* ADDED BY Marco Nijdam */
- { "dst", tDST, HOUR( 0) }, /* DST on (hour is ignored) */
- /* End ADDED */
- { NULL }
- };
- /*
- * Military timezone table.
- */
- static TABLE MilitaryTable[] = {
- { "a", tZONE, HOUR( 1) },
- { "b", tZONE, HOUR( 2) },
- { "c", tZONE, HOUR( 3) },
- { "d", tZONE, HOUR( 4) },
- { "e", tZONE, HOUR( 5) },
- { "f", tZONE, HOUR( 6) },
- { "g", tZONE, HOUR( 7) },
- { "h", tZONE, HOUR( 8) },
- { "i", tZONE, HOUR( 9) },
- { "k", tZONE, HOUR( 10) },
- { "l", tZONE, HOUR( 11) },
- { "m", tZONE, HOUR( 12) },
- { "n", tZONE, HOUR(- 1) },
- { "o", tZONE, HOUR(- 2) },
- { "p", tZONE, HOUR(- 3) },
- { "q", tZONE, HOUR(- 4) },
- { "r", tZONE, HOUR(- 5) },
- { "s", tZONE, HOUR(- 6) },
- { "t", tZONE, HOUR(- 7) },
- { "u", tZONE, HOUR(- 8) },
- { "v", tZONE, HOUR(- 9) },
- { "w", tZONE, HOUR(-10) },
- { "x", tZONE, HOUR(-11) },
- { "y", tZONE, HOUR(-12) },
- { "z", tZONE, HOUR( 0) },
- { NULL }
- };
- /*
- * Dump error messages in the bit bucket.
- */
- static void
- TclDateerror(s)
- char *s;
- {
- }
- static time_t
- ToSeconds(Hours, Minutes, Seconds, Meridian)
- time_t Hours;
- time_t Minutes;
- time_t Seconds;
- MERIDIAN Meridian;
- {
- if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 59)
- return -1;
- switch (Meridian) {
- case MER24:
- if (Hours < 0 || Hours > 23)
- return -1;
- return (Hours * 60L + Minutes) * 60L + Seconds;
- case MERam:
- if (Hours < 1 || Hours > 12)
- return -1;
- return ((Hours % 12) * 60L + Minutes) * 60L + Seconds;
- case MERpm:
- if (Hours < 1 || Hours > 12)
- return -1;
- return (((Hours % 12) + 12) * 60L + Minutes) * 60L + Seconds;
- }
- return -1; /* Should never be reached */
- }
- /*
- *-----------------------------------------------------------------------------
- *
- * Convert --
- *
- * Convert a {month, day, year, hours, minutes, seconds, meridian, dst}
- * tuple into a clock seconds value.
- *
- * Results:
- * 0 or -1 indicating success or failure.
- *
- * Side effects:
- * Fills TimePtr with the computed value.
- *
- *-----------------------------------------------------------------------------
- */
- static int
- Convert(Month, Day, Year, Hours, Minutes, Seconds, Meridian, DSTmode, TimePtr)
- time_t Month;
- time_t Day;
- time_t Year;
- time_t Hours;
- time_t Minutes;
- time_t Seconds;
- MERIDIAN Meridian;
- DSTMODE DSTmode;
- time_t *TimePtr;
- {
- static int DaysInMonth[12] = {
- 31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
- };
- time_t tod;
- time_t Julian;
- int i;
- /* Figure out how many days are in February for the given year.
- * Every year divisible by 4 is a leap year.
- * But, every year divisible by 100 is not a leap year.
- * But, every year divisible by 400 is a leap year after all.
- */
- DaysInMonth[1] = IsLeapYear(Year) ? 29 : 28;
- /* Check the inputs for validity */
- if (Month < 1 || Month > 12
- || Year < START_OF_TIME || Year > END_OF_TIME
- || Day < 1 || Day > DaysInMonth[(int)--Month])
- return -1;
- /* Start computing the value. First determine the number of days
- * represented by the date, then multiply by the number of seconds/day.
- */
- for (Julian = Day - 1, i = 0; i < Month; i++)
- Julian += DaysInMonth[i];
- if (Year >= EPOCH) {
- for (i = EPOCH; i < Year; i++)
- Julian += 365 + IsLeapYear(i);
- } else {
- for (i = (int)Year; i < EPOCH; i++)
- Julian -= 365 + IsLeapYear(i);
- }
- Julian *= SECSPERDAY;
- /* Add the timezone offset ?? */
- Julian += TclDateTimezone * 60L;
- /* Add the number of seconds represented by the time component */
- if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0)
- return -1;
- Julian += tod;
- /* Perform a preliminary DST compensation ?? */
- if (DSTmode == DSTon
- || (DSTmode == DSTmaybe && TclpGetDate((TclpTime_t)&Julian, 0)->tm_isdst))
- Julian -= 60 * 60;
- *TimePtr = Julian;
- return 0;
- }
- static time_t
- DSTcorrect(Start, Future)
- time_t Start;
- time_t Future;
- {
- time_t StartDay;
- time_t FutureDay;
- StartDay = (TclpGetDate((TclpTime_t)&Start, 0)->tm_hour + 1) % 24;
- FutureDay = (TclpGetDate((TclpTime_t)&Future, 0)->tm_hour + 1) % 24;
- return (Future - Start) + (StartDay - FutureDay) * 60L * 60L;
- }
- static time_t
- NamedDay(Start, DayOrdinal, DayNumber)
- time_t Start;
- time_t DayOrdinal;
- time_t DayNumber;
- {
- struct tm *tm;
- time_t now;
- now = Start;
- tm = TclpGetDate((TclpTime_t)&now, 0);
- now += SECSPERDAY * ((DayNumber - tm->tm_wday + 7) % 7);
- now += 7 * SECSPERDAY * (DayOrdinal <= 0 ? DayOrdinal : DayOrdinal - 1);
- return DSTcorrect(Start, now);
- }
- static time_t
- NamedMonth(Start, MonthOrdinal, MonthNumber)
- time_t Start;
- time_t MonthOrdinal;
- time_t MonthNumber;
- {
- struct tm *tm;
- time_t now;
- int result;
-
- now = Start;
- tm = TclpGetDate((TclpTime_t)&now, 0);
- /* To compute the next n'th month, we use this alg:
- * add n to year value
- * if currentMonth < requestedMonth decrement year value by 1 (so that
- * doing next february from january gives us february of the current year)
- * set day to 1, time to 0
- */
- tm->tm_year += (int)MonthOrdinal;
- if (tm->tm_mon < MonthNumber - 1) {
- tm->tm_year--;
- }
- result = Convert(MonthNumber, (time_t) 1, tm->tm_year + TM_YEAR_BASE,
- (time_t) 0, (time_t) 0, (time_t) 0, MER24, DSTmaybe, &now);
- if (result < 0) {
- return 0;
- }
- return DSTcorrect(Start, now);
- }
- static int
- RelativeMonth(Start, RelMonth, TimePtr)
- time_t Start;
- time_t RelMonth;
- time_t *TimePtr;
- {
- struct tm *tm;
- time_t Month;
- time_t Year;
- time_t Julian;
- int result;
- if (RelMonth == 0) {
- *TimePtr = 0;
- return 0;
- }
- tm = TclpGetDate((TclpTime_t)&Start, 0);
- Month = 12 * (tm->tm_year + TM_YEAR_BASE) + tm->tm_mon + RelMonth;
- Year = Month / 12;
- Month = Month % 12 + 1;
- result = Convert(Month, (time_t) tm->tm_mday, Year,
- (time_t) tm->tm_hour, (time_t) tm->tm_min, (time_t) tm->tm_sec,
- MER24, DSTmaybe, &Julian);
- /*
- * The Julian time returned above is behind by one day, if "month"
- * or "year" is used to specify relative time and the GMT flag is true.
- * This problem occurs only when the current time is closer to
- * midnight, the difference being not more than its time difference
- * with GMT. For example, in US/Pacific time zone, the problem occurs
- * whenever the current time is between midnight to 8:00am or 7:00amDST.
- * See Bug# 413397 for more details and sample script.
- * To resolve this bug, we simply add the number of seconds corresponding
- * to timezone difference with GMT to Julian time, if GMT flag is true.
- */
- if (TclDateTimezone == 0) {
- Julian += TclpGetTimeZone((unsigned long) Start) * 60L;
- }
- /*
- * The following iteration takes into account the case were we jump
- * into a "short month". Far example, "one month from Jan 31" will
- * fail because there is no Feb 31. The code below will reduce the
- * day and try converting the date until we succed or the date equals
- * 28 (which always works unless the date is bad in another way).
- */
- while ((result != 0) && (tm->tm_mday > 28)) {
- tm->tm_mday--;
- result = Convert(Month, (time_t) tm->tm_mday, Year,
- (time_t) tm->tm_hour, (time_t) tm->tm_min, (time_t) tm->tm_sec,
- MER24, DSTmaybe, &Julian);
- }
- if (result != 0) {
- return -1;
- }
- *TimePtr = DSTcorrect(Start, Julian);
- return 0;
- }
- /*
- *-----------------------------------------------------------------------------
- *
- * RelativeDay --
- *
- * Given a starting time and a number of days before or after, compute the
- * DST corrected difference between those dates.
- *
- * Results:
- * 1 or -1 indicating success or failure.
- *
- * Side effects:
- * Fills TimePtr with the computed value.
- *
- *-----------------------------------------------------------------------------
- */
- static int
- RelativeDay(Start, RelDay, TimePtr)
- time_t Start;
- time_t RelDay;
- time_t *TimePtr;
- {
- time_t new;
- new = Start + (RelDay * 60 * 60 * 24);
- *TimePtr = DSTcorrect(Start, new);
- return 1;
- }
- static int
- LookupWord(buff)
- char *buff;
- {
- register char *p;
- register char *q;
- register TABLE *tp;
- int i;
- int abbrev;
- /*
- * Make it lowercase.
- */
- Tcl_UtfToLower(buff);
- if (strcmp(buff, "am") == 0 || strcmp(buff, "a.m.") == 0) {
- TclDatelval.Meridian = MERam;
- return tMERIDIAN;
- }
- if (strcmp(buff, "pm") == 0 || strcmp(buff, "p.m.") == 0) {
- TclDatelval.Meridian = MERpm;
- return tMERIDIAN;
- }
- /*
- * See if we have an abbreviation for a month.
- */
- if (strlen(buff) == 3) {
- abbrev = 1;
- } else if (strlen(buff) == 4 && buff[3] == '.') {
- abbrev = 1;
- buff[3] = ' ';
- } else {
- abbrev = 0;
- }
- for (tp = MonthDayTable; tp->name; tp++) {
- if (abbrev) {
- if (strncmp(buff, tp->name, 3) == 0) {
- TclDatelval.Number = tp->value;
- return tp->type;
- }
- } else if (strcmp(buff, tp->name) == 0) {
- TclDatelval.Number = tp->value;
- return tp->type;
- }
- }
- for (tp = TimezoneTable; tp->name; tp++) {
- if (strcmp(buff, tp->name) == 0) {
- TclDatelval.Number = tp->value;
- return tp->type;
- }
- }
- for (tp = UnitsTable; tp->name; tp++) {
- if (strcmp(buff, tp->name) == 0) {
- TclDatelval.Number = tp->value;
- return tp->type;
- }
- }
- /*
- * Strip off any plural and try the units table again.
- */
- i = strlen(buff) - 1;
- if (buff[i] == 's') {
- buff[i] = ' ';
- for (tp = UnitsTable; tp->name; tp++) {
- if (strcmp(buff, tp->name) == 0) {
- TclDatelval.Number = tp->value;
- return tp->type;
- }
- }
- }
- for (tp = OtherTable; tp->name; tp++) {
- if (strcmp(buff, tp->name) == 0) {
- TclDatelval.Number = tp->value;
- return tp->type;
- }
- }
- /*
- * Military timezones.
- */
- if (buff[1] == ' ' && !(*buff & 0x80)
- && isalpha(UCHAR(*buff))) { /* INTL: ISO only */
- for (tp = MilitaryTable; tp->name; tp++) {
- if (strcmp(buff, tp->name) == 0) {
- TclDatelval.Number = tp->value;
- return tp->type;
- }
- }
- }
- /*
- * Drop out any periods and try the timezone table again.
- */
- for (i = 0, p = q = buff; *q; q++)
- if (*q != '.') {
- *p++ = *q;
- } else {
- i++;
- }
- *p = ' ';
- if (i) {
- for (tp = TimezoneTable; tp->name; tp++) {
- if (strcmp(buff, tp->name) == 0) {
- TclDatelval.Number = tp->value;
- return tp->type;
- }
- }
- }
-
- return tID;
- }
- static int
- TclDatelex()
- {
- register char c;
- register char *p;
- char buff[20];
- int Count;
- for ( ; ; ) {
- while (isspace(UCHAR(*TclDateInput))) {
- TclDateInput++;
- }
- if (isdigit(UCHAR(c = *TclDateInput))) { /* INTL: digit */
- /* convert the string into a number; count the number of digits */
- Count = 0;
- for (TclDatelval.Number = 0;
- isdigit(UCHAR(c = *TclDateInput++)); ) { /* INTL: digit */
- TclDatelval.Number = 10 * TclDatelval.Number + c - '0';
- Count++;
- }
- TclDateInput--;
- /* A number with 6 or more digits is considered an ISO 8601 base */
- if (Count >= 6) {
- return tISOBASE;
- } else {
- return tUNUMBER;
- }
- }
- if (!(c & 0x80) && isalpha(UCHAR(c))) { /* INTL: ISO only. */
- for (p = buff; isalpha(UCHAR(c = *TclDateInput++)) /* INTL: ISO only. */
- || c == '.'; ) {
- if (p < &buff[sizeof buff - 1]) {
- *p++ = c;
- }
- }
- *p = ' ';
- TclDateInput--;
- return LookupWord(buff);
- }
- if (c != '(') {
- return *TclDateInput++;
- }
- Count = 0;
- do {
- c = *TclDateInput++;
- if (c == ' ') {
- return c;
- } else if (c == '(') {
- Count++;
- } else if (c == ')') {
- Count--;
- }
- } while (Count > 0);
- }
- }
- /*
- * Specify zone is of -50000 to force GMT. (This allows BST to work).
- */
- int
- TclGetDate(p, now, zone, timePtr)
- char *p;
- Tcl_WideInt now;
- long zone;
- Tcl_WideInt *timePtr;
- {
- struct tm *tm;
- time_t Start;
- time_t Time;
- time_t tod;
- int thisyear;
- TclDateInput = p;
- /* now has to be cast to a time_t for 64bit compliance */
- Start = (time_t) now;
- tm = TclpGetDate((TclpTime_t) &Start, (zone == -50000));
- thisyear = tm->tm_year + TM_YEAR_BASE;
- TclDateYear = thisyear;
- TclDateMonth = tm->tm_mon + 1;
- TclDateDay = tm->tm_mday;
- TclDateTimezone = zone;
- if (zone == -50000) {
- TclDateDSTmode = DSToff; /* assume GMT */
- TclDateTimezone = 0;
- } else {
- TclDateDSTmode = DSTmaybe;
- }
- TclDateHour = 0;
- TclDateMinutes = 0;
- TclDateSeconds = 0;
- TclDateMeridian = MER24;
- TclDateRelSeconds = 0;
- TclDateRelMonth = 0;
- TclDateRelDay = 0;
- TclDateRelPointer = NULL;
- TclDateHaveDate = 0;
- TclDateHaveDay = 0;
- TclDateHaveOrdinalMonth = 0;
- TclDateHaveRel = 0;
- TclDateHaveTime = 0;
- TclDateHaveZone = 0;
- if (TclDateparse() || TclDateHaveTime > 1 || TclDateHaveZone > 1 || TclDateHaveDate > 1 ||
- TclDateHaveDay > 1 || TclDateHaveOrdinalMonth > 1) {
- return -1;
- }
-
- if (TclDateHaveDate || TclDateHaveTime || TclDateHaveDay) {
- if (TclDateYear < 0) {
- TclDateYear = -TclDateYear;
- }
- /*
- * The following line handles years that are specified using
- * only two digits. The line of code below implements a policy
- * defined by the X/Open workgroup on the millinium rollover.
- * Note: some of those dates may not actually be valid on some
- * platforms. The POSIX standard startes that the dates 70-99
- * shall refer to 1970-1999 and 00-38 shall refer to 2000-2038.
- * This later definition should work on all platforms.
- */
- if (TclDateYear < 100) {
- if (TclDateYear >= 69) {
- TclDateYear += 1900;
- } else {
- TclDateYear += 2000;
- }
- }
- if (Convert(TclDateMonth, TclDateDay, TclDateYear, TclDateHour, TclDateMinutes, TclDateSeconds,
- TclDateMeridian, TclDateDSTmode, &Start) < 0) {
- return -1;
- }
- } else {
- Start = (time_t) now;
- if (!TclDateHaveRel) {
- Start -= ((tm->tm_hour * 60L * 60L) +
- tm->tm_min * 60L) + tm->tm_sec;
- }
- }
- Start += TclDateRelSeconds;
- if (RelativeMonth(Start, TclDateRelMonth, &Time) < 0) {
- return -1;
- }
- Start += Time;
- if (RelativeDay(Start, TclDateRelDay, &Time) < 0) {
- return -1;
- }
- Start += Time;
-
- if (TclDateHaveDay && !TclDateHaveDate) {
- tod = NamedDay(Start, TclDateDayOrdinal, TclDateDayNumber);
- Start += tod;
- }
- if (TclDateHaveOrdinalMonth) {
- tod = NamedMonth(Start, TclDateMonthOrdinal, TclDateMonth);
- Start += tod;
- }
-
- *timePtr = Start;
- return 0;
- }
- static CONST TclDatetabelem TclDateexca[] ={
- -1, 1,
- 0, -1,
- -2, 0,
- };
- # define YYNPROD 56
- # define YYLAST 261
- static CONST TclDatetabelem TclDateact[]={
- 24, 40, 23, 36, 54, 81, 41, 28, 53, 26,
- 37, 42, 58, 38, 56, 28, 27, 26, 28, 33,
- 26, 32, 61, 50, 27, 80, 76, 27, 51, 75,
- 74, 73, 30, 72, 71, 70, 69, 52, 49, 48,
- 47, 45, 39, 62, 78, 46, 79, 68, 25, 65,
- 60, 67, 66, 55, 44, 21, 63, 11, 10, 9,
- 8, 35, 7, 6, 5, 4, 3, 43, 2, 1,
- 20, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 57, 0, 0, 59, 77, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 19, 14, 0, 0, 0,
- 16, 28, 22, 26, 0, 12, 13, 17, 0, 15,
- 27, 18, 31, 0, 0, 29, 0, 34, 28, 0,
- 26, 0, 0, 0, 0, 0, 0, 27, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 64,
- 64 };
- static CONST TclDatetabelem TclDatepact[]={
- -10000000, -43,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000,
- -10000000,-10000000, -26, -268,-10000000, -259, -226,-10000000, -257, 10,
- -227, -212, -228,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000,
- -229,-10000000, -230, -240, -231,-10000000,-10000000, -264,-10000000, 9,
- -10000000,-10000000, -249,-10000000,-10000000, -246,-10000000, 4, -2, 2,
- 7, 6,-10000000,-10000000, -11, -232,-10000000,-10000000,-10000000,-10000000,
- -233,-10000000, -234, -235,-10000000, -237, -238, -239, -242,-10000000,
- -10000000,-10000000, -1,-10000000,-10000000,-10000000, -12,-10000000, -243, -263,
- -10000000,-10000000 };
- static CONST TclDatetabelem TclDatepgo[]={
- 0, 48, 70, 22, 69, 68, 66, 65, 64, 63,
- 62, 60, 59, 58, 57, 55 };
- static CONST TclDatetabelem TclDater1[]={
- 0, 4, 4, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 6, 6, 6, 6, 6, 7, 7, 7,
- 10, 10, 10, 10, 10, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 9, 9, 12, 12, 12,
- 13, 11, 11, 15, 15, 15, 15, 15, 2, 2,
- 1, 1, 1, 14, 3, 3 };
- static CONST TclDatetabelem TclDater2[]={
- 0, 0, 4, 3, 3, 3, 3, 3, 3, 3,
- 3, 2, 5, 9, 11, 13, 15, 5, 3, 3,
- 3, 5, 5, 7, 5, 7, 11, 3, 11, 11,
- 5, 9, 5, 3, 7, 5, 7, 7, 15, 5,
- 9, 5, 2, 7, 5, 5, 7, 3, 3, 3,
- 3, 3, 3, 3, 1, 3 };
- static CONST TclDatetabelem TclDatechk[]={
- -10000000, -4, -5, -6, -7, -8, -9, -10, -11, -12,
- -13, -14, 268, 269, 259, 272, 263, 270, 274, 258,
- -2, -15, 265, 45, 43, -1, 266, 273, 264, 261,
- 58, 258, 47, 45, 263, -1, 271, 269, 272, 268,
- 258, 263, 268, -1, 44, 268, 257, 268, 268, 268,
- 263, 268, 268, 272, 268, 44, 263, -1, 258, -1,
- 46, -3, 45, 58, 261, 47, 45, 45, 58, 268,
- 268, 268, 268, 268, 268, 268, 268, -3, 45, 58,
- 268, 268 };
- static CONST TclDatetabelem TclDatedef[]={
- 1, -2, 2, 3, 4, 5, 6, 7, 8, 9,
- 10, 11, 53, 18, 19, 27, 0, 33, 0, 20,
- 0, 42, 0, 48, 49, 47, 50, 51, 52, 12,
- 0, 22, 0, 0, 32, 44, 17, 0, 39, 30,
- 24, 35, 0, 45, 21, 0, 41, 0, 54, 25,
- 0, 0, 34, 37, 0, 0, 36, 46, 23, 43,
- 0, 13, 0, 0, 55, 0, 0, 0, 0, 31,
- 40, 14, 54, 26, 28, 29, 0, 15, 0, 0,
- 16, 38 };
- typedef struct
- #ifdef __cplusplus
- TclDatetoktype
- #endif
- { char *t_name; int t_val; } TclDatetoktype;
- #ifndef YYDEBUG
- # define YYDEBUG 0 /* don't allow debugging */
- #endif
- #if YYDEBUG
- TclDatetoktype TclDatetoks[] =
- {
- "tAGO", 257,
- "tDAY", 258,
- "tDAYZONE", 259,
- "tID", 260,
- "tMERIDIAN", 261,
- "tMINUTE_UNIT", 262,
- "tMONTH", 263,
- "tMONTH_UNIT", 264,
- "tSTARDATE", 265,
- "tSEC_UNIT", 266,
- "tSNUMBER", 267,
- "tUNUMBER", 268,
- "tZONE", 269,
- "tEPOCH", 270,
- "tDST", 271,
- "tISOBASE", 272,
- "tDAY_UNIT", 273,
- "tNEXT", 274,
- "-unknown-", -1 /* ends search */
- };
- char * TclDatereds[] =
- {
- "-no such reduction-",
- "spec : /* empty */",
- "spec : spec item",
- "item : time",
- "item : zone",
- "item : date",
- "item : ordMonth",
- "item : day",
- "item : relspec",
- "item : iso",
- "item : trek",
- "item : number",
- "time : tUNUMBER tMERIDIAN",
- "time : tUNUMBER ':' tUNUMBER o_merid",
- "time : tUNUMBER ':' tUNUMBER '-' tUNUMBER",
- "time : tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid",
- "time : tUNUMBER ':' tUNUMBER ':' tUNUMBER '-' tUNUMBER",
- "zone : tZONE tDST",
- "zone : tZONE",
- "zone : tDAYZONE",
- "day : tDAY",
- "day : tDAY ','",
- "day : tUNUMBER tDAY",
- "day : sign tUNUMBER tDAY",
- "day : tNEXT tDAY",
- "date : tUNUMBER '/' tUNUMBER",
- "date : tUNUMBER '/' tUNUMBER '/' tUNUMBER",
- "date : tISOBASE",
- "date : tUNUMBER '-' tMONTH '-' tUNUMBER",
- "date : tUNUMBER '-' tUNUMBER '-' tUNUMBER",
- "date : tMONTH tUNUMBER",
- "date : tMONTH tUNUMBER ',' tUNUMBER",
- "date : tUNUMBER tMONTH",
- "date : tEPOCH",
- "date : tUNUMBER tMONTH tUNUMBER",
- "ordMonth : tNEXT tMONTH",
- "ordMonth : tNEXT tUNUMBER tMONTH",
- "iso : tISOBASE tZONE tISOBASE",
- "iso : tISOBASE tZONE tUNUMBER ':' tUNUMBER ':' tUNUMBER",
- "iso : tISOBASE tISOBASE",
- "trek : tSTARDATE tUNUMBER '.' tUNUMBER",
- "relspec : relunits tAGO",
- "relspec : relunits",
- "relunits : sign tUNUMBER unit",
- "relunits : tUNUMBER unit",
- "relunits : tNEXT unit",
- "relunits : tNEXT tUNUMBER unit",
- "relunits : unit",
- "sign : '-'",
- "sign : '+'",
- "unit : tSEC_UNIT",
- "unit : tDAY_UNIT",
- "unit : tMONTH_UNIT",
- "number : tUNUMBER",
- "o_merid : /* empty */",
- "o_merid : tMERIDIAN",
- };
- #endif /* YYDEBUG */
- /*
- * Copyright (c) 1993 by Sun Microsystems, Inc.
- */
- /*
- ** Skeleton parser driver for yacc output
- */
- /*
- ** yacc user known macros and defines
- */
- #define YYERROR goto TclDateerrlab
- #define YYACCEPT return(0)
- #define YYABORT return(1)
- #define YYBACKUP( newtoken, newvalue )
- {
- if ( TclDatechar >= 0 || ( TclDater2[ TclDatetmp ] >> 1 ) != 1 )
- {
- TclDateerror( "syntax error - cannot backup" );
- goto TclDateerrlab;
- }
- TclDatechar = newtoken;
- TclDatestate = *TclDateps;
- TclDatelval = newvalue;
- goto TclDatenewstate;
- }
- #define YYRECOVERING() (!!TclDateerrflag)
- #define YYNEW(type) malloc(sizeof(type) * TclDatenewmax)
- #define YYCOPY(to, from, type)
- (type *) memcpy(to, (char *) from, TclDatemaxdepth * sizeof (type))
- #define YYENLARGE( from, type)
- (type *) realloc((char *) from, TclDatenewmax * sizeof(type))
- #ifndef YYDEBUG
- # define YYDEBUG 1 /* make debugging available */
- #endif
- /*
- ** user known globals
- */
- int TclDatedebug; /* set to 1 to get debugging */
- /*
- ** driver internal defines
- */
- #define YYFLAG (-10000000)
- /*
- ** global variables used by the parser
- */
- YYSTYPE *TclDatepv; /* top of value stack */
- int *TclDateps; /* top of state stack */
- int TclDatestate; /* current state */
- int TclDatetmp; /* extra var (lasts between blocks) */
- int TclDatenerrs; /* number of errors */
- int TclDateerrflag; /* error recovery flag */
- int TclDatechar; /* current input token number */
- #ifdef YYNMBCHARS
- #define YYLEX() TclDatecvtok(TclDatelex())
- /*
- ** TclDatecvtok - return a token if i is a wchar_t value that exceeds 255.
- ** If i<255, i itself is the token. If i>255 but the neither
- ** of the 30th or 31st bit is on, i is already a token.
- */
- #if defined(__STDC__) || defined(__cplusplus)
- int TclDatecvtok(int i)
- #else
- int TclDatecvtok(i) int i;
- #endif
- {
- int first = 0;
- int last = YYNMBCHARS - 1;
- int mid;
- wchar_t j;
- if(i&0x60000000){/*Must convert to a token. */
- if( TclDatembchars[last].character < i ){
- return i;/*Giving up*/
- }
- while ((last>=first)&&(first>=0)) {/*Binary search loop*/
- mid = (first+last)/2;
- j = TclDatembchars[mid].character;
- if( j==i ){/*Found*/
- return TclDatembchars[mid].tvalue;
- }else if( j<i ){
- first = mid + 1;
- }else{
- last = mid -1;
- }
- }
- /*No entry in the table.*/
- return i;/* Giving up.*/
- }else{/* i is already a token. */
- return i;
- }
- }
- #else/*!YYNMBCHARS*/
- #define YYLEX() TclDatelex()
- #endif/*!YYNMBCHARS*/
- /*
- ** TclDateparse - return 0 if worked, 1 if syntax error not recovered from
- */
- #if defined(__STDC__) || defined(__cplusplus)
- int TclDateparse(void)
- #else
- int TclDateparse()
- #endif
- {
- register YYSTYPE *TclDatepvt = 0; /* top of value stack for $vars */
- #if defined(__cplusplus) || defined(lint)
- /*
- hacks to please C++ and lint - goto's inside
- switch should never be executed
- */
- static int __yaccpar_lint_hack__ = 0;
- switch (__yaccpar_lint_hack__)
- {
- case 1: goto TclDateerrlab;
- case 2: goto TclDatenewstate;
- }
- #endif
- /*
- ** Initialize externals - TclDateparse may be called more than once
- */
- TclDatepv = &TclDatev[-1];
- TclDateps = &TclDates[-1];
- TclDatestate = 0;
- TclDatetmp = 0;
- TclDatenerrs = 0;
- TclDateerrflag = 0;
- TclDatechar = -1;
- #if YYMAXDEPTH <= 0
- if (TclDatemaxdepth <= 0)
- {
- if ((TclDatemaxdepth = YYEXPAND(0)) <= 0)
- {
- TclDateerror("yacc initialization error");
- YYABORT;
- }
- }
- #endif
- {
- register YYSTYPE *TclDate_pv; /* top of value stack */
- register int *TclDate_ps; /* top of state stack */
- register int TclDate_state; /* current state */
- register int TclDate_n; /* internal state number info */
- goto TclDatestack; /* moved from 6 lines above to here to please C++ */
- /*
- ** get globals into registers.
- ** branch to here only if YYBACKUP was called.
- */
- TclDate_pv = TclDatepv;
- TclDate_ps = TclDateps;
- TclDate_state = TclDatestate;
- goto TclDate_newstate;
- /*
- ** get globals into registers.
- ** either we just started, or we just finished a reduction
- */
- TclDatestack:
- TclDate_pv = TclDatepv;
- TclDate_ps = TclDateps;
- TclDate_state = TclDatestate;
- /*
- ** top of for (;;) loop while no reductions done
- */
- TclDate_stack:
- /*
- ** put a state and value onto the stacks
- */
- #if YYDEBUG
- /*
- ** if debugging, look up token value in list of value vs.
- ** name pairs. 0 and negative (-1) are special values.
- ** Note: linear search is used since time is not a real
- ** consideration while debugging.
- */
- if ( TclDatedebug )
- {
- register int TclDate_i;
- printf( "State %d, token ", TclDate_state );
- if ( TclDatechar == 0 )
- printf( "end-of-filen" );
- else if ( TclDatechar < 0 )
- printf( "-none-n" );
- else
- {
- for ( TclDate_i = 0; TclDatetoks[TclDate_i].t_val >= 0;
- TclDate_i++ )
- {
- if ( TclDatetoks[TclDate_i].t_val == TclDatechar )
- break;
- }
- printf( "%sn", TclDatetoks[TclDate_i].t_name );
- }
- }
- #endif /* YYDEBUG */
- if ( ++TclDate_ps >= &TclDates[ TclDatemaxdepth ] ) /* room on stack? */
- {
- /*
- ** reallocate and recover. Note that pointers
- ** have to be reset, or bad things will happen
- */
- long TclDateps_index = (TclDate_ps - TclDates);
- long TclDatepv_index = (TclDate_pv - TclDatev);
- long TclDatepvt_index = (TclDatepvt - TclDatev);
- int TclDatenewmax;
- #ifdef YYEXPAND
- TclDatenewmax = YYEXPAND(TclDatemaxdepth);
- #else
- TclDatenewmax = 2 * TclDatemaxdepth; /* double table size */
- if (TclDatemaxdepth == YYMAXDEPTH) /* first time growth */
- {
- char *newTclDates = (char *)YYNEW(int);
- char *newTclDatev = (char *)YYNEW(YYSTYPE);
- if (newTclDates != 0 && newTclDatev != 0)
- {
- TclDates = YYCOPY(newTclDates, TclDates, int);
- TclDatev = YYCOPY(newTclDatev, TclDatev, YYSTYPE);
- }
- else
- TclDatenewmax = 0; /* failed */
- }
- else /* not first time */
- {
- TclDates = YYENLARGE(TclDates, int);
- TclDatev = YYENLARGE(TclDatev, YYSTYPE);
- if (TclDates == 0 || TclDatev == 0)
- TclDatenewmax = 0; /* failed */
- }
- #endif
- if (TclDatenewmax <= TclDatemaxdepth) /* tables not expanded */
- {
- TclDateerror( "yacc stack overflow" );
- YYABORT;
- }
- TclDatemaxdepth = TclDatenewmax;
- TclDate_ps = TclDates + TclDateps_index;
- TclDate_pv = TclDatev + TclDatepv_index;
- TclDatepvt = TclDatev + TclDatepvt_index;
- }
- *TclDate_ps = TclDate_state;
- *++TclDate_pv = TclDateval;
- /*
- ** we have a new state - find out what to do
- */
- TclDate_newstate:
- if ( ( TclDate_n = TclDatepact[ TclDate_state ] ) <= YYFLAG )
- goto TclDatedefault; /* simple state */
- #if YYDEBUG
- /*
- ** if debugging, need to mark whether new token grabbed
- */
- TclDatetmp = TclDatechar < 0;
- #endif
- if ( ( TclDatechar < 0 ) && ( ( TclDatechar = YYLEX() ) < 0 ) )
- TclDatechar = 0; /* reached EOF */
- #if YYDEBUG
- if ( TclDatedebug && TclDatetmp )
- {
- register int TclDate_i;
- printf( "Received token " );
- if ( TclDatechar == 0 )
- printf( "end-of-filen" );
- else if ( TclDatechar < 0 )
- printf( "-none-n" );
- else
- {
- for ( TclDate_i = 0; TclDatetoks[TclDate_i].t_val >= 0;
- TclDate_i++ )
- {
- if ( TclDatetoks[TclDate_i].t_val == TclDatechar )
- break;
- }
- printf( "%sn", TclDatetoks[TclDate_i].t_name );
- }
- }
- #endif /* YYDEBUG */
- if ( ( ( TclDate_n += TclDatechar ) < 0 ) || ( TclDate_n >= YYLAST ) )
- goto TclDatedefault;
- if ( TclDatechk[ TclDate_n = TclDateact[ TclDate_n ] ] == TclDatechar ) /*valid shift*/
- {
- TclDatechar = -1;
- TclDateval = TclDatelval;
- TclDate_state = TclDate_n;
- if ( TclDateerrflag > 0 )
- TclDateerrflag--;
- goto TclDate_stack;
- }
- TclDatedefault:
- if ( ( TclDate_n = TclDatedef[ TclDate_state ] ) == -2 )
- {
- #if YYDEBUG
- TclDatetmp = TclDatechar < 0;
- #endif
- if ( ( TclDatechar < 0 ) && ( ( TclDatechar = YYLEX() ) < 0 ) )
- TclDatechar = 0; /* reached EOF */
- #if YYDEBUG
- if ( TclDatedebug && TclDatetmp )
- {
- register int TclDate_i;
- printf( "Received token " );
- if ( TclDatechar == 0 )
- printf( "end-of-filen" );
- else if ( TclDatechar < 0 )
- printf( "-none-n" );
- else
- {
- for ( TclDate_i = 0;
- TclDatetoks[TclDate_i].t_val >= 0;
- TclDate_i++ )
- {
- if ( TclDatetoks[TclDate_i].t_val
- == TclDatechar )
- {
- break;
- }
- }
- printf( "%sn", TclDatetoks[TclDate_i].t_name );
- }
- }
- #endif /* YYDEBUG */
- /*
- ** look through exception table
- */
- {
- register CONST int *TclDatexi = TclDateexca;
- while ( ( *TclDatexi != -1 ) ||
- ( TclDatexi[1] != TclDate_state ) )
- {
- TclDatexi += 2;
- }
- while ( ( *(TclDatexi += 2) >= 0 ) &&
- ( *TclDatexi != TclDatechar ) )
- ;
- if ( ( TclDate_n = TclDatexi[1] ) < 0 )
- YYACCEPT;
- }
- }
- /*
- ** check for syntax error
- */
- if ( TclDate_n == 0 ) /* have an error */
- {
- /* no worry about speed here! */
- switch ( TclDateerrflag )
- {
- case 0: /* new error */
- TclDateerror( "syntax error" );
- goto skip_init;
- /*
- ** get globals into registers.
- ** we have a user generated syntax type error
- */
- TclDate_pv = TclDatepv;
- TclDate_ps = TclDateps;
- TclDate_state = TclDatestate;
- skip_init:
- TclDatenerrs++;
- /* FALLTHRU */
- case 1:
- case 2: /* incompletely recovered error */
- /* try again... */
- TclDateerrflag = 3;
- /*
- ** find state where "error" is a legal
- ** shift action
- */
- while ( TclDate_ps >= TclDates )
- {
- TclDate_n = TclDatepact[ *TclDate_ps ] + YYERRCODE;
- if ( TclDate_n >= 0 && TclDate_n < YYLAST &&
- TclDatechk[TclDateact[TclDate_n]] == YYERRCODE) {
- /*
- ** simulate shift of "error"
- */
- TclDate_state = TclDateact[ TclDate_n ];
- goto TclDate_stack;
- }
- /*
- ** current state has no shift on
- ** "error", pop stack
- */
- #if YYDEBUG
- # define _POP_ "Error recovery pops state %d, uncovers state %dn"
- if ( TclDatedebug )
- printf( _POP_, *TclDate_ps,
- TclDate_ps[-1] );
- # undef _POP_
- #endif
- TclDate_ps--;
- TclDate_pv--;
- }
- /*
- ** there is no state on stack with "error" as
- ** a valid shift. give up.
- */
- YYABORT;
- case 3: /* no shift yet; eat a token */
- #if YYDEBUG
- /*
- ** if debugging, look up token in list of
- ** pairs. 0 and negative shouldn't occur,
- ** but since timing doesn't matter when
- ** debugging, it doesn't hurt to leave the
- ** tests here.
- */
- if ( TclDatedebug )
- {
- register int TclDate_i;
- printf( "Error recovery discards " );
- if ( TclDatechar == 0 )
- printf( "token end-of-filen" );
- else if ( TclDatechar < 0 )
- printf( "token -none-n" );
- else
- {
- for ( TclDate_i = 0;
- TclDatetoks[TclDate_i].t_val >= 0;
- TclDate_i++ )
- {
- if ( TclDatetoks[TclDate_i].t_val
- == TclDatechar )
- {
- break;
- }
- }
- printf( "token %sn",
- TclDatetoks[TclDate_i].t_name );
- }
- }
- #endif /* YYDEBUG */
- if ( TclDatechar == 0 ) /* reached EOF. quit */
- YYABORT;
- TclDatechar = -1;
- goto TclDate_newstate;
- }
- }/* end if ( TclDate_n == 0 ) */
- /*
- ** reduction by production TclDate_n
- ** put stack tops, etc. so things right after switch
- */
- #if YYDEBUG
- /*
- ** if debugging, print the string that is the user's
- ** specification of the reduction which is just about
- ** to be done.
- */
- if ( TclDatedebug )
- printf( "Reduce by (%d) "%s"n",
- TclDate_n, TclDatereds[ TclDate_n ] );
- #endif
- TclDatetmp = TclDate_n; /* value to switch over */
- TclDatepvt = TclDate_pv; /* $vars top of value stack */
- /*
- ** Look in goto table for next state
- ** Sorry about using TclDate_state here as temporary
- ** register variable, but why not, if it works...
- ** If TclDater2[ TclDate_n ] doesn't have the low order bit
- ** set, then there is no action to be done for
- ** this reduction. So, no saving & unsaving of
- ** registers done. The only difference between the
- ** code just after the if and the body of the if is
- ** the goto TclDate_stack in the body. This way the test
- ** can be made before the choice of what to do is needed.
- */
- {
- /* length of production doubled with extra bit */
- register int TclDate_len = TclDater2[ TclDate_n ];
- if ( !( TclDate_len & 01 ) )
- {
- TclDate_len >>= 1;
- TclDateval = ( TclDate_pv -= TclDate_len )[1]; /* $$ = $1 */
- TclDate_state = TclDatepgo[ TclDate_n = TclDater1[ TclDate_n ] ] +
- *( TclDate_ps -= TclDate_len ) + 1;
- if ( TclDate_state >= YYLAST ||
- TclDatechk[ TclDate_state =
- TclDateact[ TclDate_state ] ] != -TclDate_n )
- {
- TclDate_state = TclDateact[ TclDatepgo[ TclDate_n ] ];
- }
- goto TclDate_stack;
- }
- TclDate_len >>= 1;
- TclDateval = ( TclDate_pv -= TclDate_len )[1]; /* $$ = $1 */
- TclDate_state = TclDatepgo[ TclDate_n = TclDater1[ TclDate_n ] ] +
- *( TclDate_ps -= TclDate_len ) + 1;
- if ( TclDate_state >= YYLAST ||
- TclDatechk[ TclDate_state = TclDateact[ TclDate_state ] ] != -TclDate_n )
- {
- TclDate_state = TclDateact[ TclDatepgo[ TclDate_n ] ];
- }
- }
- /* save until reenter driver code */
- TclDatestate = TclDate_state;
- TclDateps = TclDate_ps;
- TclDatepv = TclDate_pv;
- }
- /*
- ** code supplied by user is placed in this switch
- */
- switch( TclDatetmp )
- {
-
- case 3:{
- TclDateHaveTime++;
- } break;
- case 4:{
- TclDateHaveZone++;
- } break;
- case 5:{
- TclDateHaveDate++;
- } break;
- case 6:{
- TclDateHaveOrdinalMonth++;
- } break;
- case 7:{
- TclDateHaveDay++;
- } break;
- case 8:{
- TclDateHaveRel++;
- } break;
- case 9:{
- TclDateHaveTime++;
- TclDateHaveDate++;
- } break;
- case 10:{
- TclDateHaveTime++;
- TclDateHaveDate++;
- TclDateHaveRel++;
- } break;
- case 12:{
- TclDateHour = TclDatepvt[-1].Number;
- TclDateMinutes = 0;
- TclDateSeconds = 0;
- TclDateMeridian = TclDatepvt[-0].Meridian;
- } break;
- case 13:{
- TclDateHour = TclDatepvt[-3].Number;
- TclDateMinutes = TclDatepvt[-1].Number;
- TclDateSeconds = 0;
- TclDateMeridian = TclDatepvt[-0].Meridian;
- } break;
- case 14:{
- TclDateHour = TclDatepvt[-4].Number;
- TclDateMinutes = TclDatepvt[-2].Number;
- TclDateMeridian = MER24;
- TclDateDSTmode = DSToff;
- TclDateTimezone = (TclDatepvt[-0].Number % 100 + (TclDatepvt[-0].Number / 100) * 60);
- } break;
- case 15:{
- TclDateHour = TclDatepvt[-5].Number;
- TclDateMinutes = TclDatepvt[-3].Number;
- TclDateSeconds = TclDatepvt[-1].Number;
- TclDateMeridian = TclDatepvt[-0].Meridian;
- } break;
- case 16:{
- TclDateHour = TclDatepvt[-6].Number;
- TclDateMinutes = TclDatepvt[-4].Number;
- TclDateSeconds = TclDatepvt[-2].Number;
- TclDateMeridian = MER24;
- TclDateDSTmode = DSToff;
- TclDateTimezone = (TclDatepvt[-0].Number % 100 + (TclDatepvt[-0].Number / 100) * 60);
- } break;
- case 17:{
- TclDateTimezone = TclDatepvt[-1].Number;
- TclDateDSTmode = DSTon;
- } break;
- case 18:{
- TclDateTimezone = TclDatepvt[-0].Number;
- TclDateDSTmode = DSToff;
- } break;
- case 19:{
- TclDateTimezone = TclDatepvt[-0].Number;
- TclDateDSTmode = DSTon;
- } break;
- case 20:{
- TclDateDayOrdinal = 1;
- TclDateDayNumber = TclDatepvt[-0].Number;
- } break;
- case 21:{
- TclDateDayOrdinal = 1;
- TclDateDayNumber = TclDatepvt[-1].Number;
- } break;
- case 22:{
- TclDateDayOrdinal = TclDatepvt[-1].Number;
- TclDateDayNumber = TclDatepvt[-0].Number;
- } break;
- case 23:{
- TclDateDayOrdinal = TclDatepvt[-2].Number * TclDatepvt[-1].Number;
- TclDateDayNumber = TclDatepvt[-0].Number;
- } break;
- case 24:{
- TclDateDayOrdinal = 2;
- TclDateDayNumber = TclDatepvt[-0].Number;
- } break;
- case 25:{
- TclDateMonth = TclDatepvt[-2].Number;
- TclDateDay = TclDatepvt[-0].Number;
- } break;
- case 26:{
- TclDateMonth = TclDatepvt[-4].Number;
- TclDateDay = TclDatepvt[-2].Number;
- TclDateYear = TclDatepvt[-0].Number;
- } break;
- case 27:{
- TclDateYear = TclDatepvt[-0].Number / 10000;
- TclDateMonth = (TclDatepvt[-0].Number % 10000)/100;
- TclDateDay = TclDatepvt[-0].Number % 100;
- } break;
- case 28:{
- TclDateDay = TclDatepvt[-4].Number;
- TclDateMonth = TclDatepvt[-2].Number;
- TclDateYear = TclDatepvt[-0].Number;
- } break;
- case 29:{
- TclDateMonth = TclDatepvt[-2].Number;
- TclDateDay = TclDatepvt[-0].Number;
- TclDateYear = TclDatepvt[-4].Number;
- } break;
- case 30:{
- TclDateMonth = TclDatepvt[-1].Number;
- TclDateDay = TclDatepvt[-0].Number;
- } break;
- case 31:{
- TclDateMonth = TclDatepvt[-3].Number;
- TclDateDay = TclDatepvt[-2].Number;
- TclDateYear = TclDatepvt[-0].Number;
- } break;
- case 32:{
- TclDateMonth = TclDatepvt[-0].Number;
- TclDateDay = TclDatepvt[-1].Number;
- } break;
- case 33:{
- TclDateMonth = 1;
- TclDateDay = 1;
- TclDateYear = EPOCH;
- } break;
- case 34:{
- TclDateMonth = TclDatepvt[-1].Number;
- TclDateDay = TclDatepvt[-2].Number;
- TclDateYear = TclDatepvt[-0].Number;
- } break;
- case 35:{
- TclDateMonthOrdinal = 1;
- TclDateMonth = TclDatepvt[-0].Number;
- } break;
- case 36:{
- TclDateMonthOrdinal = TclDatepvt[-1].Number;
- TclDateMonth = TclDatepvt[-0].Number;
- } break;
- case 37:{
- if (TclDatepvt[-1].Number != HOUR(- 7)) YYABORT;
- TclDateYear = TclDatepvt[-2].Number / 10000;
- TclDateMonth = (TclDatepvt[-2].Number % 10000)/100;
- TclDateDay = TclDatepvt[-2].Number % 100;
- TclDateHour = TclDatepvt[-0].Number / 10000;
- TclDateMinutes = (TclDatepvt[-0].Number % 10000)/100;
- TclDateSeconds = TclDatepvt[-0].Number % 100;
- } break;
- case 38:{
- if (TclDatepvt[-5].Number != HOUR(- 7)) YYABORT;
- TclDateYear = TclDatepvt[-6].Number / 10000;
- TclDateMonth = (TclDatepvt[-6].Number % 10000)/100;
- TclDateDay = TclDatepvt[-6].Number % 100;
- TclDateHour = TclDatepvt[-4].Number;
- TclDateMinutes = TclDatepvt[-2].Number;
- TclDateSeconds = TclDatepvt[-0].Number;
- } break;
- case 39:{
- TclDateYear = TclDatepvt[-1].Number / 10000;
- TclDateMonth = (TclDatepvt[-1].Number % 10000)/100;
- TclDateDay = TclDatepvt[-1].Number % 100;
- TclDateHour = TclDatepvt[-0].Number / 10000;
- TclDateMinutes = (TclDatepvt[-0].Number % 10000)/100;
- TclDateSeconds = TclDatepvt[-0].Number % 100;
- } break;
- case 40:{
- /*
- * Offset computed year by -377 so that the returned years will
- * be in a range accessible with a 32 bit clock seconds value
- */
- TclDateYear = TclDatepvt[-2].Number/1000 + 2323 - 377;
- TclDateDay = 1;
- TclDateMonth = 1;
- TclDateRelDay += ((TclDatepvt[-2].Number%1000)*(365 + IsLeapYear(TclDateYear)))/1000;
- TclDateRelSeconds += TclDatepvt[-0].Number * 144 * 60;
- } break;
- case 41:{
- TclDateRelSeconds *= -1;
- TclDateRelMonth *= -1;
- TclDateRelDay *= -1;
- } break;
- case 43:{ *TclDateRelPointer += TclDatepvt[-2].Number * TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
- case 44:{ *TclDateRelPointer += TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
- case 45:{ *TclDateRelPointer += TclDatepvt[-0].Number; } break;
- case 46:{ *TclDateRelPointer += TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
- case 47:{ *TclDateRelPointer += TclDatepvt[-0].Number; } break;
- case 48:{ TclDateval.Number = -1; } break;
- case 49:{ TclDateval.Number = 1; } break;
- case 50:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelSeconds; } break;
- case 51:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelDay; } break;
- case 52:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelMonth; } break;
- case 53:{
- if (TclDateHaveTime && TclDateHaveDate && !TclDateHaveRel) {
- TclDateYear = TclDatepvt[-0].Number;
- } else {
- TclDateHaveTime++;
- if (TclDatepvt[-0].Number < 100) {
- TclDateHour = TclDatepvt[-0].Number;
- TclDateMinutes = 0;
- } else {
- TclDateHour = TclDatepvt[-0].Number / 100;
- TclDateMinutes = TclDatepvt[-0].Number % 100;
- }
- TclDateSeconds = 0;
- TclDateMeridian = MER24;
- }
- } break;
- case 54:{
- TclDateval.Meridian = MER24;
- } break;
- case 55:{
- TclDateval.Meridian = TclDatepvt[-0].Meridian;
- } break;
- }
- goto TclDatestack; /* reset registers in driver code */
- }