/* * 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 & 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. */ %parse-param {DateInfo* info} %lex-param {DateInfo* info} %define api.pure /* %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 & 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 */ /* * Meridian: am, pm, or 24-hour style. */ typedef enum _MERIDIAN { MERam, MERpm, MER24 } MERIDIAN; /* * 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; MERIDIAN 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; %} %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 tDAY %type tDAYZONE %type tMONTH %type tMONTH_UNIT %type tDST %type tSEC_UNIT %type tSNUMBER %type tUNUMBER %type tZONE %type tISOBASE %type tDAY_UNIT %type unit %type sign %type tNEXT %type tSTARDATE %type tMERIDIAN %type 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 o_merid { yyHour = $1; yyMinutes = $3; yySeconds = $5; yyMeridian = $6; } ; zone : tZONE tDST { yyTimezone = $1; if (yyTimezone > HOUR( 12)) yyTimezone -= HOUR(100); yyDSTmode = DSTon; } | tZONE { yyTimezone = $1; if (yyTimezone > HOUR( 12)) yyTimezone -= HOUR(100); yyDSTmode = DSToff; } | tDAYZONE { yyTimezone = $1; yyDSTmode = DSTon; } | sign tUNUMBER { yyTimezone = -$1*($2 % 100 + ($2 / 100) * 60); yyDSTmode = DSToff; } ; 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 : tUNUMBER '-' tUNUMBER '-' tUNUMBER tZONE tUNUMBER ':' tUNUMBER ':' tUNUMBER { if ($6 != HOUR( 7) + HOUR(100)) YYABORT; yyYear = $1; yyMonth = $3; yyDay = $5; yyHour = $7; yyMinutes = $9; yySeconds = $11; } | tISOBASE tZONE tISOBASE { if ($2 != HOUR( 7) + HOUR(100)) 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) + HOUR(100)) 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; } ; %% /* * Month and day table. */ static const 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, 0, 0 } }; /* * Time units table. */ static const 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, 0, 0 } }; /* * Assorted relative-time words. */ static const 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, 0, 0 } }; /* * The timezone table. (Note: This table was modified to not use any floating * point constants to work around an SGI compiler bug). */ static const 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, 0, 0 } }; /* * Military timezone table. */ static const TABLE MilitaryTable[] = { { "a", tZONE, -HOUR( 1) + HOUR(100) }, { "b", tZONE, -HOUR( 2) + HOUR(100) }, { "c", tZONE, -HOUR( 3) + HOUR(100) }, { "d", tZONE, -HOUR( 4) + HOUR(100) }, { "e", tZONE, -HOUR( 5) + HOUR(100) }, { "f", tZONE, -HOUR( 6) + HOUR(100) }, { "g", tZONE, -HOUR( 7) + HOUR(100) }, { "h", tZONE, -HOUR( 8) + HOUR(100) }, { "i", tZONE, -HOUR( 9) + HOUR(100) }, { "k", tZONE, -HOUR(10) + HOUR(100) }, { "l", tZONE, -HOUR(11) + HOUR(100) }, { "m", tZONE, -HOUR(12) + HOUR(100) }, { "n", tZONE, HOUR( 1) + HOUR(100) }, { "o", tZONE, HOUR( 2) + HOUR(100) }, { "p", tZONE, HOUR( 3) + HOUR(100) }, { "q", tZONE, HOUR( 4) + HOUR(100) }, { "r", tZONE, HOUR( 5) + HOUR(100) }, { "s", tZONE, HOUR( 6) + HOUR(100) }, { "t", tZONE, HOUR( 7) + HOUR(100) }, { "u", tZONE, HOUR( 8) + HOUR(100) }, { "v", tZONE, HOUR( 9) + HOUR(100) }, { "w", tZONE, HOUR( 10) + HOUR(100) }, { "x", tZONE, HOUR( 11) + HOUR(100) }, { "y", tZONE, HOUR( 12) + HOUR(100) }, { "z", tZONE, HOUR( 0) + HOUR(100) }, { NULL, 0, 0 } }; /* * 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); TclNewIntObj(t, location->first_column); Tcl_IncrRefCount(t); Tcl_AppendObjToObj(infoPtr->messages, t); Tcl_DecrRefCount(t); Tcl_AppendToObj(infoPtr->messages, "-", -1); TclNewIntObj(t, 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) { char *p; char *q; const 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) { char c; char *p; char buff[20]; int Count; location->first_column = yyInput - info->dateStart; for ( ; ; ) { while (TclIsSpaceProcM(*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( void *dummy, /* 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; (void)dummy; 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; TclNewObj(dateInfo.messages); dateInfo.separatrix = ""; Tcl_IncrRefCount(dateInfo.messages); status = yyparse(&dateInfo); if (status == 1) { Tcl_SetObjResult(interp, dateInfo.messages); Tcl_DecrRefCount(dateInfo.messages); Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "PARSE", NULL); return TCL_ERROR; } else if (status == 2) { Tcl_SetObjResult(interp, Tcl_NewStringObj("memory exhausted", -1)); Tcl_DecrRefCount(dateInfo.messages); Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL); 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); Tcl_SetErrorCode(interp, "TCL", "BUG", NULL); return TCL_ERROR; } Tcl_DecrRefCount(dateInfo.messages); if (yyHaveDate > 1) { Tcl_SetObjResult(interp, Tcl_NewStringObj("more than one date in string", -1)); Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL); return TCL_ERROR; } if (yyHaveTime > 1) { Tcl_SetObjResult(interp, Tcl_NewStringObj("more than one time of day in string", -1)); Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL); return TCL_ERROR; } if (yyHaveZone > 1) { Tcl_SetObjResult(interp, Tcl_NewStringObj("more than one time zone in string", -1)); Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL); return TCL_ERROR; } if (yyHaveDay > 1) { Tcl_SetObjResult(interp, Tcl_NewStringObj("more than one weekday in string", -1)); Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL); return TCL_ERROR; } if (yyHaveOrdinalMonth > 1) { Tcl_SetObjResult(interp, Tcl_NewStringObj("more than one ordinal month in string", -1)); Tcl_SetErrorCode(interp, "TCL", "VALUE", "DATE", "MULTIPLE", NULL); return TCL_ERROR; } TclNewObj(result); TclNewObj(resultElement); 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, (MERIDIAN)yyMeridian))); } else { Tcl_ListObjAppendElement(interp, result, Tcl_NewObj()); } TclNewObj(resultElement); if (yyHaveZone) { Tcl_ListObjAppendElement(interp, resultElement, Tcl_NewIntObj((int) -yyTimezone)); Tcl_ListObjAppendElement(interp, resultElement, Tcl_NewIntObj(1 - yyDSTmode)); } Tcl_ListObjAppendElement(interp, result, resultElement); TclNewObj(resultElement); 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); TcNewObj(resultElement); if (yyHaveDay && !yyHaveDate) { Tcl_ListObjAppendElement(interp, resultElement, Tcl_NewIntObj((int) yyDayOrdinal)); Tcl_ListObjAppendElement(interp, resultElement, Tcl_NewIntObj((int) yyDayNumber)); } Tcl_ListObjAppendElement(interp, result, resultElement); TclNewObj(resultElement); 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: */