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-rw-r--r--generic/tclDate.c256
-rw-r--r--generic/tclGetDate.y58
2 files changed, 210 insertions, 104 deletions
diff --git a/generic/tclDate.c b/generic/tclDate.c
index 87ab0fb..5e36665 100644
--- a/generic/tclDate.c
+++ b/generic/tclDate.c
@@ -10,7 +10,7 @@
* 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 1.15 2000/01/14 22:15:51 ericm Exp $
+ * RCS: @(#) $Id: tclDate.c,v 1.16 2000/02/09 03:56:24 ericm Exp $
*/
#include "tclInt.h"
@@ -74,8 +74,10 @@ 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;
@@ -104,6 +106,8 @@ static int Convert _ANSI_ARGS_((time_t Month, time_t Day, time_t Year,
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,
@@ -522,6 +526,35 @@ NamedDay(Start, DayOrdinal, DayNumber)
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 += 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)
@@ -814,12 +847,13 @@ TclGetDate(p, now, zone, timePtr)
TclDateHaveDate = 0;
TclDateHaveDay = 0;
+ TclDateHaveOrdinalMonth = 0;
TclDateHaveRel = 0;
TclDateHaveTime = 0;
TclDateHaveZone = 0;
if (TclDateparse() || TclDateHaveTime > 1 || TclDateHaveZone > 1 || TclDateHaveDate > 1 ||
- TclDateHaveDay > 1) {
+ TclDateHaveDay > 1 || TclDateHaveOrdinalMonth > 1) {
return -1;
}
@@ -872,6 +906,11 @@ TclGetDate(p, now, zone, timePtr)
Start += tod;
}
+ if (TclDateHaveOrdinalMonth) {
+ tod = NamedMonth(Start, TclDateMonthOrdinal, TclDateMonth);
+ Start += tod;
+ }
+
*timePtr = Start;
return 0;
}
@@ -880,21 +919,22 @@ static CONST TclDatetabelem TclDateexca[] ={
0, -1,
-2, 0,
};
-# define YYNPROD 53
-# define YYLAST 259
+# define YYNPROD 56
+# define YYLAST 261
static CONST TclDatetabelem TclDateact[]={
- 23, 40, 22, 34, 26, 35, 24, 26, 36, 24,
- 53, 42, 55, 25, 52, 80, 25, 79, 26, 31,
- 24, 30, 59, 48, 75, 74, 73, 25, 49, 72,
- 71, 70, 28, 69, 67, 50, 47, 46, 45, 39,
- 37, 60, 77, 44, 78, 66, 43, 63, 58, 20,
- 65, 64, 54, 38, 61, 10, 9, 8, 7, 6,
- 5, 33, 4, 3, 2, 1, 18, 0, 0, 41,
+ 24, 39, 23, 35, 55, 83, 40, 27, 54, 25,
+ 36, 41, 59, 37, 57, 27, 26, 25, 27, 32,
+ 25, 31, 62, 50, 26, 82, 78, 26, 51, 77,
+ 76, 75, 29, 74, 73, 72, 70, 52, 49, 48,
+ 47, 44, 38, 63, 80, 46, 45, 81, 69, 21,
+ 66, 61, 68, 67, 56, 43, 64, 11, 10, 9,
+ 8, 7, 34, 6, 5, 4, 3, 2, 42, 1,
+ 20, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 53, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 58, 0, 0, 60, 0, 0, 79, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 71, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 51, 0, 0, 0, 0, 0, 0, 0, 0, 56,
- 0, 0, 57, 0, 76, 0, 0, 0, 0, 0,
- 0, 0, 0, 68, 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,
@@ -904,65 +944,65 @@ static CONST TclDatetabelem TclDateact[]={
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, 17, 13, 0, 0, 0,
- 15, 26, 21, 24, 0, 11, 12, 16, 0, 14,
- 25, 19, 29, 0, 0, 27, 0, 32, 26, 0,
- 24, 0, 0, 0, 0, 0, 0, 25, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 62, 62 };
+ 0, 0, 0, 0, 0, 19, 14, 0, 0, 0,
+ 16, 27, 22, 25, 0, 12, 13, 17, 0, 15,
+ 26, 18, 30, 0, 0, 28, 0, 33, 27, 0,
+ 25, 0, 0, 0, 0, 0, 0, 26, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 65,
+ 65 };
static CONST TclDatetabelem TclDatepact[]={
-10000000, -43,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000,
--10000000, -26, -268,-10000000, -264, -228,-10000000, 9, -229, -257,
- -214, -230,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000, -231,-10000000,
- -232, -240, -233, -214,-10000000, -258,-10000000, 8,-10000000, -246,
--10000000,-10000000, -260,-10000000,-10000000, 2, -4, 0, 6, 5,
--10000000,-10000000,-10000000, -13, -234,-10000000, -214,-10000000, -235,-10000000,
- -237, -238,-10000000, -239, -242, -243, -244,-10000000,-10000000,-10000000,
--10000000, -3,-10000000,-10000000,-10000000, -14,-10000000, -251, -253,-10000000,
--10000000 };
+-10000000,-10000000, -26, -268,-10000000, -259, -226,-10000000, -257, 11,
+ -227, -212, -228,-10000000,-10000000,-10000000,-10000000,-10000000,-10000000, -229,
+-10000000, -230, -240, -231, -212,-10000000, -264,-10000000, 10,-10000000,
+-10000000, -249,-10000000,-10000000, -246,-10000000,-10000000, 5, -2, 3,
+ 8, 7,-10000000,-10000000,-10000000, -10, -232,-10000000,-10000000,-10000000,
+ -212, -233,-10000000, -234, -235,-10000000, -237, -238, -239, -242,
+-10000000,-10000000,-10000000,-10000000, -1,-10000000,-10000000,-10000000, -11,-10000000,
+ -243, -263,-10000000,-10000000 };
static CONST TclDatetabelem TclDatepgo[]={
- 0, 49, 46, 66, 22, 65, 64, 63, 62, 60,
- 59, 58, 57, 56, 55 };
+ 0, 49, 46, 70, 22, 69, 67, 66, 65, 64,
+ 63, 61, 60, 59, 58, 57 };
static CONST TclDatetabelem TclDater1[]={
0, 5, 5, 6, 6, 6, 6, 6, 6, 6,
- 6, 7, 7, 7, 7, 7, 8, 8, 8, 10,
- 10, 10, 10, 10, 9, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 12, 12, 12, 13, 11, 11,
- 11, 11, 11, 3, 3, 1, 1, 1, 2, 2,
- 14, 4, 4 };
+ 6, 6, 7, 7, 7, 7, 7, 8, 8, 8,
+ 11, 11, 11, 11, 11, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 10, 10, 13, 13, 13,
+ 14, 12, 12, 12, 12, 12, 3, 3, 1, 1,
+ 1, 2, 2, 15, 4, 4 };
static CONST TclDatetabelem TclDater2[]={
0, 0, 4, 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, 7, 15, 5, 9, 9, 7,
- 5, 7, 5, 3, 3, 3, 3, 3, 3, 1,
- 3, 1, 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, 9, 7, 5, 7, 5, 3, 3, 3, 3,
+ 3, 3, 1, 3, 1, 3 };
static CONST TclDatetabelem TclDatechk[]={
-10000000, -5, -6, -7, -8, -9, -10, -11, -12, -13,
- -14, 268, 269, 259, 272, 263, 270, 258, -3, 274,
- -1, 265, 45, 43, 266, 273, 264, 261, 58, 258,
- 47, 45, 263, -1, 271, 269, 272, 268, 44, 268,
- 258, -1, 268, -2, 257, 268, 268, 268, 263, 268,
- 268, -2, 272, 268, 44, 258, -1, -1, 46, -4,
- 45, 58, 261, 47, 45, 45, 58, 268, -2, 268,
- 268, 268, 268, 268, 268, 268, -4, 45, 58, 268,
- 268 };
+ -14, -15, 268, 269, 259, 272, 263, 270, 274, 258,
+ -3, -1, 265, 45, 43, 266, 273, 264, 261, 58,
+ 258, 47, 45, 263, -1, 271, 269, 272, 268, 258,
+ 263, 268, -1, 44, 268, -2, 257, 268, 268, 268,
+ 263, 268, 268, -2, 272, 268, 44, 263, -1, 258,
+ -1, 46, -4, 45, 58, 261, 47, 45, 45, 58,
+ 268, -2, 268, 268, 268, 268, 268, 268, 268, -4,
+ 45, 58, 268, 268 };
static CONST TclDatetabelem TclDatedef[]={
1, -2, 2, 3, 4, 5, 6, 7, 8, 9,
- 10, 50, 17, 18, 26, 0, 32, 19, 0, 0,
- 49, 0, 43, 44, 45, 46, 47, 11, 0, 21,
- 0, 0, 31, 49, 16, 0, 36, 29, 20, 0,
- 23, 40, 0, 42, 48, 0, 51, 24, 0, 0,
- 33, 39, 34, 0, 0, 22, 49, 41, 0, 12,
- 0, 0, 52, 0, 0, 0, 0, 30, 38, 37,
- 13, 51, 25, 27, 28, 0, 14, 0, 0, 15,
- 35 };
+ 10, 11, 53, 18, 19, 27, 0, 33, 0, 20,
+ 0, 52, 0, 46, 47, 48, 49, 50, 12, 0,
+ 22, 0, 0, 32, 52, 17, 0, 39, 30, 24,
+ 35, 0, 43, 21, 0, 45, 51, 0, 54, 25,
+ 0, 0, 34, 42, 37, 0, 0, 36, 44, 23,
+ 52, 0, 13, 0, 0, 55, 0, 0, 0, 0,
+ 31, 41, 40, 14, 54, 26, 28, 29, 0, 15,
+ 0, 0, 16, 38 };
typedef struct
#ifdef __cplusplus
TclDatetoktype
@@ -1005,6 +1045,7 @@ char * TclDatereds[] =
"item : time",
"item : zone",
"item : date",
+ "item : ordMonth",
"item : day",
"item : relspec",
"item : iso",
@@ -1033,6 +1074,8 @@ char * TclDatereds[] =
"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",
@@ -1591,46 +1634,49 @@ case 5:{
TclDateHaveDate++;
} break;
case 6:{
- TclDateHaveDay++;
+ TclDateHaveOrdinalMonth++;
} break;
case 7:{
- TclDateHaveRel++;
+ TclDateHaveDay++;
} break;
case 8:{
+ TclDateHaveRel++;
+ } break;
+case 9:{
TclDateHaveTime++;
TclDateHaveDate++;
} break;
-case 9:{
+case 10:{
TclDateHaveTime++;
TclDateHaveDate++;
TclDateHaveRel++;
} break;
-case 11:{
+case 12:{
TclDateHour = TclDatepvt[-1].Number;
TclDateMinutes = 0;
TclDateSeconds = 0;
TclDateMeridian = TclDatepvt[-0].Meridian;
} break;
-case 12:{
+case 13:{
TclDateHour = TclDatepvt[-3].Number;
TclDateMinutes = TclDatepvt[-1].Number;
TclDateSeconds = 0;
TclDateMeridian = TclDatepvt[-0].Meridian;
} break;
-case 13:{
+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 14:{
+case 15:{
TclDateHour = TclDatepvt[-5].Number;
TclDateMinutes = TclDatepvt[-3].Number;
TclDateSeconds = TclDatepvt[-1].Number;
TclDateMeridian = TclDatepvt[-0].Meridian;
} break;
-case 15:{
+case 16:{
TclDateHour = TclDatepvt[-6].Number;
TclDateMinutes = TclDatepvt[-4].Number;
TclDateSeconds = TclDatepvt[-2].Number;
@@ -1638,86 +1684,94 @@ case 15:{
TclDateDSTmode = DSToff;
TclDateTimezone = (TclDatepvt[-0].Number % 100 + (TclDatepvt[-0].Number / 100) * 60);
} break;
-case 16:{
+case 17:{
TclDateTimezone = TclDatepvt[-1].Number;
TclDateDSTmode = DSTon;
} break;
-case 17:{
+case 18:{
TclDateTimezone = TclDatepvt[-0].Number;
TclDateDSTmode = DSToff;
} break;
-case 18:{
+case 19:{
TclDateTimezone = TclDatepvt[-0].Number;
TclDateDSTmode = DSTon;
} break;
-case 19:{
+case 20:{
TclDateDayOrdinal = 1;
TclDateDayNumber = TclDatepvt[-0].Number;
} break;
-case 20:{
+case 21:{
TclDateDayOrdinal = 1;
TclDateDayNumber = TclDatepvt[-1].Number;
} break;
-case 21:{
+case 22:{
TclDateDayOrdinal = TclDatepvt[-1].Number;
TclDateDayNumber = TclDatepvt[-0].Number;
} break;
-case 22:{
+case 23:{
TclDateDayOrdinal = TclDatepvt[-2].Number * TclDatepvt[-1].Number;
TclDateDayNumber = TclDatepvt[-0].Number;
} break;
-case 23:{
+case 24:{
TclDateDayOrdinal = 2;
TclDateDayNumber = TclDatepvt[-0].Number;
} break;
-case 24:{
+case 25:{
TclDateMonth = TclDatepvt[-2].Number;
TclDateDay = TclDatepvt[-0].Number;
} break;
-case 25:{
+case 26:{
TclDateMonth = TclDatepvt[-4].Number;
TclDateDay = TclDatepvt[-2].Number;
TclDateYear = TclDatepvt[-0].Number;
} break;
-case 26:{
+case 27:{
TclDateYear = TclDatepvt[-0].Number / 10000;
TclDateMonth = (TclDatepvt[-0].Number % 10000)/100;
TclDateDay = TclDatepvt[-0].Number % 100;
} break;
-case 27:{
+case 28:{
TclDateDay = TclDatepvt[-4].Number;
TclDateMonth = TclDatepvt[-2].Number;
TclDateYear = TclDatepvt[-0].Number;
} break;
-case 28:{
+case 29:{
TclDateMonth = TclDatepvt[-2].Number;
TclDateDay = TclDatepvt[-0].Number;
TclDateYear = TclDatepvt[-4].Number;
} break;
-case 29:{
+case 30:{
TclDateMonth = TclDatepvt[-1].Number;
TclDateDay = TclDatepvt[-0].Number;
} break;
-case 30:{
+case 31:{
TclDateMonth = TclDatepvt[-3].Number;
TclDateDay = TclDatepvt[-2].Number;
TclDateYear = TclDatepvt[-0].Number;
} break;
-case 31:{
+case 32:{
TclDateMonth = TclDatepvt[-0].Number;
TclDateDay = TclDatepvt[-1].Number;
} break;
-case 32:{
+case 33:{
TclDateMonth = 1;
TclDateDay = 1;
TclDateYear = EPOCH;
} break;
-case 33:{
+case 34:{
TclDateMonth = TclDatepvt[-1].Number;
TclDateDay = TclDatepvt[-2].Number;
TclDateYear = TclDatepvt[-0].Number;
} break;
-case 34:{
+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;
@@ -1726,7 +1780,7 @@ case 34:{
TclDateMinutes = (TclDatepvt[-0].Number % 10000)/100;
TclDateSeconds = TclDatepvt[-0].Number % 100;
} break;
-case 35:{
+case 38:{
if (TclDatepvt[-5].Number != HOUR(- 7)) YYABORT;
TclDateYear = TclDatepvt[-6].Number / 10000;
TclDateMonth = (TclDatepvt[-6].Number % 10000)/100;
@@ -1735,7 +1789,7 @@ case 35:{
TclDateMinutes = TclDatepvt[-2].Number;
TclDateSeconds = TclDatepvt[-0].Number;
} break;
-case 36:{
+case 39:{
TclDateYear = TclDatepvt[-1].Number / 10000;
TclDateMonth = (TclDatepvt[-1].Number % 10000)/100;
TclDateDay = TclDatepvt[-1].Number % 100;
@@ -1743,7 +1797,7 @@ case 36:{
TclDateMinutes = (TclDatepvt[-0].Number % 10000)/100;
TclDateSeconds = TclDatepvt[-0].Number % 100;
} break;
-case 37:{
+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
@@ -1754,19 +1808,19 @@ case 37:{
TclDateRelDay += ((TclDatepvt[-2].Number%1000)*(365 + IsLeapYear(TclDateYear)))/1000;
TclDateRelSeconds += TclDatepvt[-0].Number * 144 * 60;
} break;
-case 38:{ *TclDateRelPointer += TclDatepvt[-3].Number * TclDatepvt[-2].Number * TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
-case 39:{ *TclDateRelPointer += TclDatepvt[-2].Number * TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
-case 40:{ *TclDateRelPointer += TclDatepvt[-0].Number; } break;
-case 41:{ *TclDateRelPointer += TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
-case 42:{ *TclDateRelPointer += TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
-case 43:{ TclDateval.Number = -1; } break;
-case 44:{ TclDateval.Number = 1; } break;
-case 45:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelSeconds; } break;
-case 46:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelDay; } break;
-case 47:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelMonth; } break;
-case 48:{ TclDateval.Number = -1; } break;
-case 49:{ TclDateval.Number = 1; } break;
-case 50:{
+case 41:{ *TclDateRelPointer += TclDatepvt[-3].Number * TclDatepvt[-2].Number * TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
+case 42:{ *TclDateRelPointer += TclDatepvt[-2].Number * TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
+case 43:{ *TclDateRelPointer += TclDatepvt[-0].Number; } break;
+case 44:{ *TclDateRelPointer += TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
+case 45:{ *TclDateRelPointer += TclDatepvt[-1].Number * TclDatepvt[-0].Number; } break;
+case 46:{ TclDateval.Number = -1; } break;
+case 47:{ TclDateval.Number = 1; } break;
+case 48:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelSeconds; } break;
+case 49:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelDay; } break;
+case 50:{ TclDateval.Number = TclDatepvt[-0].Number; TclDateRelPointer = &TclDateRelMonth; } break;
+case 51:{ TclDateval.Number = -1; } break;
+case 52:{ TclDateval.Number = 1; } break;
+case 53:{
if (TclDateHaveTime && TclDateHaveDate && !TclDateHaveRel) {
TclDateYear = TclDatepvt[-0].Number;
} else {
@@ -1782,10 +1836,10 @@ case 50:{
TclDateMeridian = MER24;
}
} break;
-case 51:{
+case 54:{
TclDateval.Meridian = MER24;
} break;
-case 52:{
+case 55:{
TclDateval.Meridian = TclDatepvt[-0].Meridian;
} break;
}
diff --git a/generic/tclGetDate.y b/generic/tclGetDate.y
index 7e6e01e..c5347bb 100644
--- a/generic/tclGetDate.y
+++ b/generic/tclGetDate.y
@@ -11,7 +11,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclGetDate.y,v 1.13 2000/01/14 22:15:51 ericm Exp $
+ * RCS: @(#) $Id: tclGetDate.y,v 1.14 2000/02/09 03:56:24 ericm Exp $
*/
%{
@@ -91,8 +91,10 @@ static char *yyInput;
static DSTMODE yyDSTmode;
static time_t yyDayOrdinal;
static time_t yyDayNumber;
+static time_t yyMonthOrdinal;
static int yyHaveDate;
static int yyHaveDay;
+static int yyHaveOrdinalMonth;
static int yyHaveRel;
static int yyHaveTime;
static int yyHaveZone;
@@ -121,6 +123,8 @@ static int Convert _ANSI_ARGS_((time_t Month, time_t Day, time_t Year,
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,
@@ -161,6 +165,9 @@ item : time {
| date {
yyHaveDate++;
}
+ | ordMonth {
+ yyHaveOrdinalMonth++;
+ }
| day {
yyHaveDay++;
}
@@ -287,7 +294,7 @@ date : tUNUMBER '/' tUNUMBER {
yyMonth = $2;
yyDay = $1;
}
- | tEPOCH {
+ | tEPOCH {
yyMonth = 1;
yyDay = 1;
yyYear = EPOCH;
@@ -299,6 +306,16 @@ date : tUNUMBER '/' tUNUMBER {
}
;
+ordMonth: tNEXT tMONTH {
+ yyMonthOrdinal = 1;
+ yyMonth = $2;
+ }
+ | tNEXT tUNUMBER tMONTH {
+ yyMonthOrdinal = $2;
+ yyMonth = $3;
+ }
+ ;
+
iso : tISOBASE tZONE tISOBASE {
if ($2 != HOUR(- 7)) YYABORT;
yyYear = $1 / 10000;
@@ -724,6 +741,35 @@ NamedDay(Start, DayOrdinal, DayNumber)
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 += 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)
@@ -1016,12 +1062,13 @@ TclGetDate(p, now, zone, timePtr)
yyHaveDate = 0;
yyHaveDay = 0;
+ yyHaveOrdinalMonth = 0;
yyHaveRel = 0;
yyHaveTime = 0;
yyHaveZone = 0;
if (yyparse() || yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 ||
- yyHaveDay > 1) {
+ yyHaveDay > 1 || yyHaveOrdinalMonth > 1) {
return -1;
}
@@ -1074,6 +1121,11 @@ TclGetDate(p, now, zone, timePtr)
Start += tod;
}
+ if (yyHaveOrdinalMonth) {
+ tod = NamedMonth(Start, yyMonthOrdinal, yyMonth);
+ Start += tod;
+ }
+
*timePtr = Start;
return 0;
}