/*
* tclGetDate.y --
*
* Contains yacc grammar for parsing date and time strings. The output of
* this file should be the file tclDate.c which is used directly in the
* Tcl sources. Note that this file is largely obsolete in Tcl 8.5; it is
* only used when doing free-form date parsing, an ill-defined process
* anyway.
*
* 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: tclGetDate.y,v 1.38.2.1 2009/06/09 13:52:58 kennykb Exp $
*/
%parse-param {DateInfo* info}
%lex-param {DateInfo* info}
%pure-parser
/* %error-verbose would be nice, but our token names are meaningless */
%locations
%{
/*
* 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.
*
*/
#include "tclInt.h"
/*
* Bison generates several labels that happen to be unused. MS Visual C++
* doesn't like that, and complains. Tell it to shut up.
*/
#ifdef _MSC_VER
#pragma warning( disable : 4102 )
#endif /* _MSC_VER */
/*
* yyparse will accept a 'struct DateInfo' as its parameter; that's where the
* parsed fields will be returned.
*/
typedef struct DateInfo {
Tcl_Obj* messages; /* Error messages */
const char* separatrix; /* String separating messages */
time_t dateYear;
time_t dateMonth;
time_t dateDay;
int dateHaveDate;
time_t dateHour;
time_t dateMinutes;
time_t dateSeconds;
int dateMeridian;
int dateHaveTime;
time_t dateTimezone;
int dateDSTmode;
int dateHaveZone;
time_t dateRelMonth;
time_t dateRelDay;
time_t dateRelSeconds;
int dateHaveRel;
time_t dateMonthOrdinal;
int dateHaveOrdinalMonth;
time_t dateDayOrdinal;
time_t dateDayNumber;
int dateHaveDay;
const char *dateStart;
const char *dateInput;
time_t *dateRelPointer;
int dateDigitCount;
} DateInfo;
#define YYMALLOC ckalloc
#define YYFREE(x) (ckfree((void*) (x)))
#define yyDSTmode (info->dateDSTmode)
#define yyDayOrdinal (info->dateDayOrdinal)
#define yyDayNumber (info->dateDayNumber)
#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 yyDay (info->dateDay)
#define yyMonth (info->dateMonth)
#define yyYear (info->dateYear)
#define yyHour (info->dateHour)
#define yyMinutes (info->dateMinutes)
#define yySeconds (info->dateSeconds)
#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)
#define EPOCH 1970
#define START_OF_TIME 1902
#define END_OF_TIME 2037
/*
* The offset of tm_year of struct tm returned by localtime, gmtime, etc.
* Posix requires 1900.
*/
#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 {
const 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;
%}
%union {
time_t Number;
enum _MERIDIAN Meridian;
}
%{
/*
* Prototypes of internal functions.
*/
static int LookupWord(YYSTYPE* yylvalPtr, char *buff);
static void TclDateerror(YYLTYPE* location,
DateInfo* info, const char *s);
static int TclDatelex(YYSTYPE* yylvalPtr, YYLTYPE* location,
DateInfo* info);
static time_t ToSeconds(time_t Hours, time_t Minutes,
time_t Seconds, MERIDIAN Meridian);
MODULE_SCOPE int yyparse(DateInfo*);
%}
%token tAGO
%token tDAY
%token tDAYZONE
%token tID
%token tMERIDIAN
%token tMONTH
%token tMONTH_UNIT
%token tSTARDATE
%token tSEC_UNIT
%token tSNUMBER
%token tUNUMBER
%token tZONE
%token tEPOCH
%token tDST
%token tISOBASE
%token tDAY_UNIT
%token tNEXT
%type <Number> tDAY
%type <Number> tDAYZONE
%type <Number> tMONTH
%type <Number> tMONTH_UNIT
%type <Number> tDST
%type <Number> tSEC_UNIT
%type <Number> tSNUMBER
%type <Number> tUNUMBER
%type <Number> tZONE
%type <Number> tISOBASE
%type <Number> tDAY_UNIT
%type <Number> unit
%type <Number> sign
%type <Number> tNEXT
%type <Number> tSTARDATE
%type <Meridian> tMERIDIAN
%type <Meridian> o_merid
%%
spec : /* NULL */
| spec item
;
item : time {
yyHaveTime++;
}
| zone {
yyHaveZone++;
}
| date {
yyHaveDate++;
}
| ordMonth {
yyHaveOrdinalMonth++;
}
| day {
yyHaveDay++;
}
| relspec {
yyHaveRel++;
}
| iso {
yyHaveTime++;
yyHaveDate++;
}
| trek {
yyHaveTime++;
yyHaveDate++;
yyHaveRel++;
}
| number
;
time : tUNUMBER tMERIDIAN {
yyHour = $1;
yyMinutes = 0;
yySeconds = 0;
yyMeridian = $2;
}
| tUNUMBER ':' tUNUMBER o_merid {
yyHour = $1;
yyMinutes = $3;
yySeconds = 0;
yyMeridian = $4;
}
| tUNUMBER ':' tUNUMBER '-' tUNUMBER {
yyHour = $1;
yyMinutes = $3;
yyMeridian = MER24;
yyDSTmode = DSToff;
yyTimezone = ($5 % 100 + ($5 / 100) * 60);
++yyHaveZone;
}
| tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid {
yyHour = $1;
yyMinutes = $3;
yySeconds = $5;
yyMeridian = $6;
}
| tUNUMBER ':' tUNUMBER ':' tUNUMBER '-' tUNUMBER {
yyHour = $1;
yyMinutes = $3;
yySeconds = $5;
yyMeridian = MER24;
yyDSTmode = DSToff;
yyTimezone = ($7 % 100 + ($7 / 100) * 60);
++yyHaveZone;
}
;
zone : tZONE tDST {
yyTimezone = $1;
yyDSTmode = DSTon;
}
| tZONE {
yyTimezone = $1;
yyDSTmode = DSToff;
}
| tDAYZONE {
yyTimezone = $1;
yyDSTmode = DSTon;
}
;
day : tDAY {
yyDayOrdinal = 1;
yyDayNumber = $1;
}
| tDAY ',' {
yyDayOrdinal = 1;
yyDayNumber = $1;
}
| tUNUMBER tDAY {
yyDayOrdinal = $1;
yyDayNumber = $2;
}
| sign tUNUMBER tDAY {
yyDayOrdinal = $1 * $2;
yyDayNumber = $3;
}
| tNEXT tDAY {
yyDayOrdinal = 2;
yyDayNumber = $2;
}
;
date : tUNUMBER '/' tUNUMBER {
yyMonth = $1;
yyDay = $3;
}
| tUNUMBER '/' tUNUMBER '/' tUNUMBER {
yyMonth = $1;
yyDay = $3;
yyYear = $5;
}
| tISOBASE {
yyYear = $1 / 10000;
yyMonth = ($1 % 10000)/100;
yyDay = $1 % 100;
}
| tUNUMBER '-' tMONTH '-' tUNUMBER {
yyDay = $1;
yyMonth = $3;
yyYear = $5;
}
| tUNUMBER '-' tUNUMBER '-' tUNUMBER {
yyMonth = $3;
yyDay = $5;
yyYear = $1;
}
| tMONTH tUNUMBER {
yyMonth = $1;
yyDay = $2;
}
| tMONTH tUNUMBER ',' tUNUMBER {
yyMonth = $1;
yyDay = $2;
yyYear = $4;
}
| tUNUMBER tMONTH {
yyMonth = $2;
yyDay = $1;
}
| tEPOCH {
yyMonth = 1;
yyDay = 1;
yyYear = EPOCH;
}
| tUNUMBER tMONTH tUNUMBER {
yyMonth = $2;
yyDay = $1;
yyYear = $3;
}
;
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;
yyMonth = ($1 % 10000)/100;
yyDay = $1 % 100;
yyHour = $3 / 10000;
yyMinutes = ($3 % 10000)/100;
yySeconds = $3 % 100;
}
| tISOBASE tZONE tUNUMBER ':' tUNUMBER ':' tUNUMBER {
if ($2 != HOUR( 7)) YYABORT;
yyYear = $1 / 10000;
yyMonth = ($1 % 10000)/100;
yyDay = $1 % 100;
yyHour = $3;
yyMinutes = $5;
yySeconds = $7;
}
| tISOBASE tISOBASE {
yyYear = $1 / 10000;
yyMonth = ($1 % 10000)/100;
yyDay = $1 % 100;
yyHour = $2 / 10000;
yyMinutes = ($2 % 10000)/100;
yySeconds = $2 % 100;
}
;
trek : tSTARDATE tUNUMBER '.' tUNUMBER {
/*
* Offset computed year by -377 so that the returned years will be
* in a range accessible with a 32 bit clock seconds value.
*/
yyYear = $2/1000 + 2323 - 377;
yyDay = 1;
yyMonth = 1;
yyRelDay += (($2%1000)*(365 + IsLeapYear(yyYear)))/1000;
yyRelSeconds += $4 * 144 * 60;
}
;
relspec : relunits tAGO {
yyRelSeconds *= -1;
yyRelMonth *= -1;
yyRelDay *= -1;
}
| relunits
;
relunits : sign tUNUMBER unit {
*yyRelPointer += $1 * $2 * $3;
}
| tUNUMBER unit {
*yyRelPointer += $1 * $2;
}
| tNEXT unit {
*yyRelPointer += $2;
}
| tNEXT tUNUMBER unit {
*yyRelPointer += $2 * $3;
}
| unit {
*yyRelPointer += $1;
}
;
sign : '-' {
$$ = -1;
}
| '+' {
$$ = 1;
}
;
unit : tSEC_UNIT {
$$ = $1;
yyRelPointer = &yyRelSeconds;
}
| tDAY_UNIT {
$$ = $1;
yyRelPointer = &yyRelDay;
}
| tMONTH_UNIT {
$$ = $1;
yyRelPointer = &yyRelMonth;
}
;
number : tUNUMBER {
if (yyHaveTime && yyHaveDate && !yyHaveRel) {
yyYear = $1;
} else {
yyHaveTime++;
if (yyDigitCount <= 2) {
yyHour = $1;
yyMinutes = 0;
} else {
yyHour = $1 / 100;
yyMinutes = $1 % 100;
}
yySeconds = 0;
yyMeridian = MER24;
}
}
;
o_merid : /* NULL */ {
$$ = MER24;
}
| tMERIDIAN {
$$ = $1;
}
;
%%
MODULE_SCOPE int yychar;
MODULE_SCOPE YYSTYPE yylval;
MODULE_SCOPE int yynerrs;
/*
* 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(
YYLTYPE* location,
DateInfo* infoPtr,
const char *s)
{
Tcl_Obj* t;
Tcl_AppendToObj(infoPtr->messages, infoPtr->separatrix, -1);
Tcl_AppendToObj(infoPtr->messages, s, -1);
Tcl_AppendToObj(infoPtr->messages, " (characters ", -1);
t = Tcl_NewIntObj(location->first_column);
Tcl_IncrRefCount(t);
Tcl_AppendObjToObj(infoPtr->messages, t);
Tcl_DecrRefCount(t);
Tcl_AppendToObj(infoPtr->messages, "-", -1);
t = Tcl_NewIntObj(location->last_column);
Tcl_IncrRefCount(t);
Tcl_AppendObjToObj(infoPtr->messages, t);
Tcl_DecrRefCount(t);
Tcl_AppendToObj(infoPtr->messages, ")", -1);
infoPtr->separatrix = "\n";
}
static time_t
ToSeconds(
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 */
}
static int
LookupWord(
YYSTYPE* yylvalPtr,
char *buff)
{
register char *p;
register char *q;
register TABLE *tp;
int i, abbrev;
/*
* Make it lowercase.
*/
Tcl_UtfToLower(buff);
if (strcmp(buff, "am") == 0 || strcmp(buff, "a.m.") == 0) {
yylvalPtr->Meridian = MERam;
return tMERIDIAN;
}
if (strcmp(buff, "pm") == 0 || strcmp(buff, "p.m.") == 0) {
yylvalPtr->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] = '\0';
} else {
abbrev = 0;
}
for (tp = MonthDayTable; tp->name; tp++) {
if (abbrev) {
if (strncmp(buff, tp->name, 3) == 0) {
yylvalPtr->Number = tp->value;
return tp->type;
}
} else if (strcmp(buff, tp->name) == 0) {
yylvalPtr->Number = tp->value;
return tp->type;
}
}
for (tp = TimezoneTable; tp->name; tp++) {
if (strcmp(buff, tp->name) == 0) {
yylvalPtr->Number = tp->value;
return tp->type;
}
}
for (tp = UnitsTable; tp->name; tp++) {
if (strcmp(buff, tp->name) == 0) {
yylvalPtr->Number = tp->value;
return tp->type;
}
}
/*
* Strip off any plural and try the units table again.
*/
i = strlen(buff) - 1;
if (i > 0 && buff[i] == 's') {
buff[i] = '\0';
for (tp = UnitsTable; tp->name; tp++) {
if (strcmp(buff, tp->name) == 0) {
yylvalPtr->Number = tp->value;
return tp->type;
}
}
}
for (tp = OtherTable; tp->name; tp++) {
if (strcmp(buff, tp->name) == 0) {
yylvalPtr->Number = tp->value;
return tp->type;
}
}
/*
* Military timezones.
*/
if (buff[1] == '\0' && !(*buff & 0x80)
&& isalpha(UCHAR(*buff))) { /* INTL: ISO only */
for (tp = MilitaryTable; tp->name; tp++) {
if (strcmp(buff, tp->name) == 0) {
yylvalPtr->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 = '\0';
if (i) {
for (tp = TimezoneTable; tp->name; tp++) {
if (strcmp(buff, tp->name) == 0) {
yylvalPtr->Number = tp->value;
return tp->type;
}
}
}
return tID;
}
static int
TclDatelex(
YYSTYPE* yylvalPtr,
YYLTYPE* location,
DateInfo *info)
{
register char c;
register char *p;
char buff[20];
int Count;
location->first_column = yyInput - info->dateStart;
for ( ; ; ) {
while (isspace(UCHAR(*yyInput))) {
yyInput++;
}
if (isdigit(UCHAR(c = *yyInput))) { /* INTL: digit */
/*
* Convert the string into a number; count the number of digits.
*/
Count = 0;
for (yylvalPtr->Number = 0;
isdigit(UCHAR(c = *yyInput++)); ) { /* INTL: digit */
yylvalPtr->Number = 10 * yylvalPtr->Number + c - '0';
Count++;
}
yyInput--;
yyDigitCount = Count;
/*
* A number with 6 or more digits is considered an ISO 8601 base.
*/
if (Count >= 6) {
location->last_column = yyInput - info->dateStart - 1;
return tISOBASE;
} else {
location->last_column = yyInput - info->dateStart - 1;
return tUNUMBER;
}
}
if (!(c & 0x80) && isalpha(UCHAR(c))) { /* INTL: ISO only. */
for (p = buff; isalpha(UCHAR(c = *yyInput++)) /* INTL: ISO only. */
|| c == '.'; ) {
if (p < &buff[sizeof buff - 1]) {
*p++ = c;
}
}
*p = '\0';
yyInput--;
location->last_column = yyInput - info->dateStart - 1;
return LookupWord(yylvalPtr, buff);
}
if (c != '(') {
location->last_column = yyInput - info->dateStart;
return *yyInput++;
}
Count = 0;
do {
c = *yyInput++;
if (c == '\0') {
location->last_column = yyInput - info->dateStart - 1;
return c;
} else if (c == '(') {
Count++;
} else if (c == ')') {
Count--;
}
} while (Count > 0);
}
}
int
TclClockOldscanObjCmd(
ClientData clientData, /* Unused */
Tcl_Interp *interp, /* Tcl interpreter */
int objc, /* Count of paraneters */
Tcl_Obj *CONST *objv) /* Parameters */
{
Tcl_Obj *result, *resultElement;
int yr, mo, da;
DateInfo dateInfo;
DateInfo* info = &dateInfo;
int status;
if (objc != 5) {
Tcl_WrongNumArgs(interp, 1, objv,
"stringToParse baseYear baseMonth baseDay" );
return TCL_ERROR;
}
yyInput = Tcl_GetString( objv[1] );
dateInfo.dateStart = yyInput;
yyHaveDate = 0;
if (Tcl_GetIntFromObj(interp, objv[2], &yr) != TCL_OK
|| Tcl_GetIntFromObj(interp, objv[3], &mo) != TCL_OK
|| Tcl_GetIntFromObj(interp, objv[4], &da) != TCL_OK) {
return TCL_ERROR;
}
yyYear = yr; yyMonth = mo; yyDay = da;
yyHaveTime = 0;
yyHour = 0; yyMinutes = 0; yySeconds = 0; yyMeridian = MER24;
yyHaveZone = 0;
yyTimezone = 0; yyDSTmode = DSTmaybe;
yyHaveOrdinalMonth = 0;
yyMonthOrdinal = 0;
yyHaveDay = 0;
yyDayOrdinal = 0; yyDayNumber = 0;
yyHaveRel = 0;
yyRelMonth = 0; yyRelDay = 0; yyRelSeconds = 0; yyRelPointer = NULL;
dateInfo.messages = Tcl_NewObj();
dateInfo.separatrix = "";
Tcl_IncrRefCount(dateInfo.messages);
status = yyparse(&dateInfo);
if (status == 1) {
Tcl_SetObjResult(interp, dateInfo.messages);
Tcl_DecrRefCount(dateInfo.messages);
return TCL_ERROR;
} else if (status == 2) {
Tcl_SetObjResult(interp, Tcl_NewStringObj("memory exhausted", -1));
Tcl_DecrRefCount(dateInfo.messages);
return TCL_ERROR;
} else if (status != 0) {
Tcl_SetObjResult(interp, Tcl_NewStringObj("Unknown status returned "
"from date parser. Please "
"report this error as a "
"bug in Tcl.", -1));
Tcl_DecrRefCount(dateInfo.messages);
return TCL_ERROR;
}
Tcl_DecrRefCount(dateInfo.messages);
if (yyHaveDate > 1) {
Tcl_SetObjResult(interp,
Tcl_NewStringObj("more than one date in string", -1));
return TCL_ERROR;
}
if (yyHaveTime > 1) {
Tcl_SetObjResult(interp,
Tcl_NewStringObj("more than one time of day in string", -1));
return TCL_ERROR;
}
if (yyHaveZone > 1) {
Tcl_SetObjResult(interp,
Tcl_NewStringObj("more than one time zone in string", -1));
return TCL_ERROR;
}
if (yyHaveDay > 1) {
Tcl_SetObjResult(interp,
Tcl_NewStringObj("more than one weekday in string", -1));
return TCL_ERROR;
}
if (yyHaveOrdinalMonth > 1) {
Tcl_SetObjResult(interp,
Tcl_NewStringObj("more than one ordinal month in string", -1));
return TCL_ERROR;
}
result = Tcl_NewObj();
resultElement = Tcl_NewObj();
if (yyHaveDate) {
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyYear));
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyMonth));
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyDay));
}
Tcl_ListObjAppendElement(interp, result, resultElement);
if (yyHaveTime) {
Tcl_ListObjAppendElement(interp, result, Tcl_NewIntObj((int)
ToSeconds(yyHour, yyMinutes, yySeconds, yyMeridian)));
} else {
Tcl_ListObjAppendElement(interp, result, Tcl_NewObj());
}
resultElement = Tcl_NewObj();
if (yyHaveZone) {
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) -yyTimezone));
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj(1 - yyDSTmode));
}
Tcl_ListObjAppendElement(interp, result, resultElement);
resultElement = Tcl_NewObj();
if (yyHaveRel) {
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyRelMonth));
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyRelDay));
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyRelSeconds));
}
Tcl_ListObjAppendElement(interp, result, resultElement);
resultElement = Tcl_NewObj();
if (yyHaveDay && !yyHaveDate) {
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyDayOrdinal));
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyDayNumber));
}
Tcl_ListObjAppendElement(interp, result, resultElement);
resultElement = Tcl_NewObj();
if (yyHaveOrdinalMonth) {
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyMonthOrdinal));
Tcl_ListObjAppendElement(interp, resultElement,
Tcl_NewIntObj((int) yyMonth));
}
Tcl_ListObjAppendElement(interp, result, resultElement);
Tcl_SetObjResult(interp, result);
return TCL_OK;
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/
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