snapshot of project "lynx", label v2-8-8dev_7 - lynx-snapshots - Unnamed repository; edit this file 'description' to name the repository.

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author	Thomas E. Dickey <dickey@invisible-island.net>	2010-12-11 15:26:32 -0500
committer	Thomas E. Dickey <dickey@invisible-island.net>	2010-12-11 15:26:32 -0500
commit	14ee67ba5e4e2df67004f0e7e27fb1df993c5619 (patch)
tree	6b2a62418c88e8f5bce1cb31eb5a4b03165d354b /makefile.in
parent	f6ef3f03e831c3e150a18f31675862794e6c8c7f (diff)
download	lynx-snapshots-14ee67ba5e4e2df67004f0e7e27fb1df993c5619.tar.gz

snapshot of project "lynx", label v2-8-8dev_7

Diffstat (limited to 'makefile.in')

-rw-r--r--

makefile.in

1 files changed, 2 insertions, 2 deletions

6512ca27 ^

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%{ /* * $LynxId: parsdate.y,v 1.12 2009/01/01 22:12:25 tom Exp $ * * This module is adapted and extended from tin, to use for LYmktime(). * * Project : tin - a Usenet reader * Module : parsedate.y * Author : S. Bellovin, R. $alz, J. Berets, P. Eggert * Created : 1990-08-01 * Updated : 2008-06-30 (by Thomas Dickey, for Lynx) * Notes : This grammar has 8 shift/reduce conflicts. * * Originally written by Steven M. Bellovin <smb@research.att.com> * while at the University of North Carolina at Chapel Hill. * Later tweaked by a couple of people on Usenet. Completely * overhauled by Rich $alz <rsalz@osf.org> and Jim Berets * <jberets@bbn.com> in August, 1990. * * Further revised (removed obsolete constructs and cleaned up * timezone names) in August, 1991, by Rich. * Paul Eggert <eggert@twinsun.com> helped in September 1992. * Roland Rosenfeld added MET DST code in April 1994. * * Revision : 1.13 * Copyright : This code is in the public domain and has no copyright. */ /* SUPPRESS 530 */ /* Empty body for statement */ /* SUPPRESS 593 on yyerrlab */ /* Label was not used */ /* SUPPRESS 593 on yynewstate */ /* Label was not used */ /* SUPPRESS 595 on yypvt */ /* Automatic variable may be used before set */ #undef alloca /* conflicting def may be set by yacc */ #include <parsdate.h> /* ** Get the number of elements in a fixed-size array, or a pointer just ** past the end of it. */ #define ENDOF(array) (&array[ARRAY_SIZE(array)]) #ifdef EBCDIC #define TO_ASCII(c) TOASCII(c) #define TO_LOCAL(c) FROMASCII(c) #else #define TO_ASCII(c) (c) #define TO_LOCAL(c) (c) #endif #define IS7BIT(x) ((unsigned) TO_ASCII(x) < 128) #define CTYPE(isXXXXX, c) (IS7BIT(c) && isXXXXX(((unsigned char)c))) typedef char *PD_STRING; extern int date_parse(void); #define yyparse date_parse #define yylex date_lex #define yyerror date_error /* See the LeapYears table in Convert. */ #define EPOCH 1970 #define END_OF_TIME 2038 /* Constants for general time calculations. */ #define DST_OFFSET 1 #define SECSPERDAY (24L * 60L * 60L) /* Readability for TABLE stuff. */ #define HOUR(x) (x * 60) #define LPAREN '(' #define RPAREN ')' /* ** 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 them by using a yacc ** union, but this is more efficient. (This routine predates the ** yacc %union construct.) */ static char *yyInput; static DSTMODE yyDSTmode; static int yyHaveDate; static int yyHaveRel; static int yyHaveTime; static time_t yyTimezone; static time_t yyDay; static time_t yyHour; static time_t yyMinutes; static time_t yyMonth; static time_t yySeconds; static time_t yyYear; static MERIDIAN yyMeridian; static time_t yyRelMonth; static time_t yyRelSeconds; static time_t ToSeconds(time_t, time_t, time_t, MERIDIAN); static time_t Convert(time_t, time_t, time_t, time_t, time_t, time_t, MERIDIAN, DSTMODE); static time_t DSTcorrect(time_t, time_t); static time_t RelativeMonth(time_t, time_t); static int LookupWord(char *, int); static int date_lex(void); static int GetTimeInfo(TIMEINFO *Now); /* * The 'date_error()' function is declared here to work around a defect in * bison 1.22, which redefines 'const' further down in this file, making it * impossible to put a prototype here, and the function later. We're using * 'const' on the parameter to quiet gcc's -Wwrite-strings warning. */ /*ARGSUSED*/ static void date_error(const char GCC_UNUSED *s) { /*NOTREACHED*/ } %} %union { time_t Number; enum _MERIDIAN Meridian; } %token tDAY tDAYZONE tMERIDIAN tMONTH tMONTH_UNIT tSEC_UNIT tSNUMBER %token tUNUMBER tZONE tDST %type <Number> tDAYZONE tMONTH tMONTH_UNIT tSEC_UNIT %type <Number> tSNUMBER tUNUMBER tZONE numzone zone %type <Meridian> tMERIDIAN o_merid %% spec : /* NULL */ | spec item ; item : time { yyHaveTime++; #if defined(lint) /* I am compulsive about lint natterings... */ if (yyHaveTime == -1) { YYERROR; } #endif /* defined(lint) */ } | time zone { yyHaveTime++; yyTimezone = $2; } | date { yyHaveDate++; } | both { yyHaveDate++; yyHaveTime++; } | both zone { yyHaveDate++; yyHaveTime++; yyTimezone = $2; } | rel { yyHaveRel = 1; } ; time : tUNUMBER o_merid { if ($1 < 100) { yyHour = $1; yyMinutes = 0; } else { yyHour = $1 / 100; yyMinutes = $1 % 100; } yySeconds = 0; yyMeridian = $2; } | tUNUMBER ':' tUNUMBER o_merid { yyHour = $1; yyMinutes = $3; yySeconds = 0; yyMeridian = $4; } | tUNUMBER ':' tUNUMBER numzone { yyHour = $1; yyMinutes = $3; yyTimezone = $4; yyMeridian = MER24; yyDSTmode = DSToff; } | tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid { yyHour = $1; yyMinutes = $3; yySeconds = $5; yyMeridian = $6; } | tUNUMBER ':' tUNUMBER ':' tUNUMBER numzone { yyHour = $1; yyMinutes = $3; yySeconds = $5; yyTimezone = $6; yyMeridian = MER24; yyDSTmode = DSToff; } ; zone : tZONE { $$ = $1; yyDSTmode = DSToff; } | tDAYZONE { $$ = $1; yyDSTmode = DSTon; } | tDAYZONE tDST { yyTimezone = $1; yyDSTmode = DSTon; } | tZONE numzone { /* Only allow "GMT+300" and "GMT-0800" */ if ($1 != 0) { YYABORT; } $$ = $2; yyDSTmode = DSToff; } | numzone { $$ = $1; yyDSTmode = DSToff; } ; numzone : tSNUMBER { int i; /* Unix and GMT and numeric timezones -- a little confusing. */ if ((int)$1 < 0) { /* Don't work with negative modulus. */ $1 = -(int)$1; if ($1 > 9999 || (i = $1 % 100) >= 60) { YYABORT; } $$ = ($1 / 100) * 60 + i; } else { if ($1 > 9999 || (i = $1 % 100) >= 60) { YYABORT; } $$ = -(($1 / 100) * 60 + i); } } ; date : tUNUMBER '/' tUNUMBER { yyMonth = $1; yyDay = $3; } | tUNUMBER '/' tUNUMBER '/' tUNUMBER { if ($1 > 100) { yyYear = $1; yyMonth = $3; yyDay = $5; } else { yyMonth = $1; yyDay = $3; yyYear = $5; } } | tMONTH tUNUMBER { yyMonth = $1; yyDay = $2; } | tMONTH tUNUMBER ',' tUNUMBER { yyMonth = $1; yyDay = $2; yyYear = $4; } | tUNUMBER tMONTH { yyDay = $1; yyMonth = $2; } | tUNUMBER tMONTH tUNUMBER { yyDay = $1; yyMonth = $2; yyYear = $3; } | tDAY ',' tUNUMBER tMONTH tUNUMBER { yyDay = $3; yyMonth = $4; yyYear = $5; } | tDAY ',' tUNUMBER '-' tMONTH tSNUMBER { yyDay = $3; yyMonth = $5; yyYear = -$6; } | tUNUMBER tSNUMBER tSNUMBER { yyDay = $1; yyMonth = -$2; yyYear = -$3; yyDSTmode = DSToff; /* assume midnight if no time given */ yyTimezone = 0; /* Lynx assumes GMT for this format */ } ; both : tDAY tMONTH tUNUMBER tUNUMBER ':' tUNUMBER ':' tUNUMBER tUNUMBER { yyMonth = $2; yyDay = $3; yyYear = $9; yyHour = $4; yyMinutes = $6; yySeconds = $8; } ; rel : tSNUMBER tSEC_UNIT { yyRelSeconds += $1 * $2; } | tUNUMBER tSEC_UNIT { yyRelSeconds += $1 * $2; } | tSNUMBER tMONTH_UNIT { yyRelMonth += $1 * $2; } | tUNUMBER tMONTH_UNIT { yyRelMonth += $1 * $2; } ; o_merid : /* NULL */ { $$ = MER24; } | tMERIDIAN { $$ = $1; } ; %% /* ** An entry in the lexical lookup table. */ typedef struct _TABLE { const char *name; int type; time_t value; } TABLE; /* 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 }, { "october", tMONTH, 10 }, { "november", tMONTH, 11 }, { "december", tMONTH, 12 }, /* The value of the day isn't used... */ { "sunday", tDAY, 0 }, { "monday", tDAY, 0 }, { "tuesday", tDAY, 0 }, { "wednesday", tDAY, 0 }, { "thursday", tDAY, 0 }, { "friday", tDAY, 0 }, { "saturday", tDAY, 0 }, }; /* Time units table. */ static const TABLE UnitsTable[] = { { "year", tMONTH_UNIT, 12 }, { "month", tMONTH_UNIT, 1 }, { "week", tSEC_UNIT, 7 * 24 * 60 * 60 }, { "day", tSEC_UNIT, 1 * 24 * 60 * 60 }, { "hour", tSEC_UNIT, 60 * 60 }, { "minute", tSEC_UNIT, 60 }, { "min", tSEC_UNIT, 60 }, { "second", tSEC_UNIT, 1 }, { "sec", tSEC_UNIT, 1 }, }; /* Timezone table. */ static const TABLE TimezoneTable[] = { { "gmt", tZONE, HOUR( 0) }, /* Greenwich Mean */ { "ut", tZONE, HOUR( 0) }, /* Universal */ { "utc", tZONE, HOUR( 0) }, /* Universal Coordinated */ { "cut", tZONE, HOUR( 0) }, /* Coordinated Universal */ { "z", tZONE, HOUR( 0) }, /* Greenwich Mean */ { "wet", tZONE, HOUR( 0) }, /* Western European */ { "bst", tDAYZONE, HOUR( 0) }, /* British Summer */ { "nst", tZONE, HOUR(3)+30 }, /* Newfoundland Standard */ { "ndt", tDAYZONE, HOUR(3)+30 }, /* 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 */ { "akst", tZONE, HOUR( 9) }, /* Alaska Standard */ { "akdt", tDAYZONE, HOUR( 9) }, /* Alaska Daylight */ { "hst", tZONE, HOUR(10) }, /* Hawaii Standard */ { "hast", tZONE, HOUR(10) }, /* Hawaii-Aleutian Standard */ { "hadt", tDAYZONE, HOUR(10) }, /* Hawaii-Aleutian Daylight */ { "ces", tDAYZONE, -HOUR(1) }, /* Central European Summer */ { "cest", tDAYZONE, -HOUR(1) }, /* Central European Summer */ { "mez", tZONE, -HOUR(1) }, /* Middle European */ { "mezt", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ { "cet", tZONE, -HOUR(1) }, /* Central European */ { "met", tZONE, -HOUR(1) }, /* Middle European */ /* Additional aliases for MET / MET DST *************************************/ { "mez", tZONE, -HOUR(1) }, /* Middle European */ { "mewt", tZONE, -HOUR(1) }, /* Middle European Winter */ { "mest", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ { "mes", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ { "mesz", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ { "msz", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ { "metdst", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ /****************************************************************************/ { "eet", tZONE, -HOUR(2) }, /* Eastern Europe */ { "msk", tZONE, -HOUR(3) }, /* Moscow Winter */ { "msd", tDAYZONE, -HOUR(3) }, /* Moscow Summer */ { "wast", tZONE, -HOUR(8) }, /* West Australian Standard */ { "wadt", tDAYZONE, -HOUR(8) }, /* West Australian Daylight */ { "hkt", tZONE, -HOUR(8) }, /* Hong Kong */ { "cct", tZONE, -HOUR(8) }, /* China Coast */ { "jst", tZONE, -HOUR(9) }, /* Japan Standard */ { "kst", tZONE, -HOUR(9) }, /* Korean Standard */ { "kdt", tZONE, -HOUR(9) }, /* Korean Daylight */ { "cast", tZONE, -(HOUR(9)+30) }, /* Central Australian Standard */ { "cadt", tDAYZONE, -(HOUR(9)+30) }, /* Central Australian Daylight */ { "east", tZONE, -HOUR(10) }, /* Eastern Australian Standard */ { "eadt", tDAYZONE, -HOUR(10) }, /* Eastern Australian Daylight */ { "nzst", tZONE, -HOUR(12) }, /* New Zealand Standard */ { "nzdt", tDAYZONE, -HOUR(12) }, /* New Zealand Daylight */ /* For completeness we include the following entries. */ #if 0 /* Duplicate names. Either they conflict with a zone listed above * (which is either more likely to be seen or just been in circulation * longer), or they conflict with another zone in this section and * we could not reasonably choose one over the other. */ { "fst", tZONE, HOUR( 2) }, /* Fernando De Noronha Standard */ { "fdt", tDAYZONE, HOUR( 2) }, /* Fernando De Noronha Daylight */ { "bst", tZONE, HOUR( 3) }, /* Brazil Standard */ { "est", tZONE, HOUR( 3) }, /* Eastern Standard (Brazil) */ { "edt", tDAYZONE, HOUR( 3) }, /* Eastern Daylight (Brazil) */ { "wst", tZONE, HOUR( 4) }, /* Western Standard (Brazil) */ { "wdt", tDAYZONE, HOUR( 4) }, /* Western Daylight (Brazil) */ { "cst", tZONE, HOUR( 5) }, /* Chile Standard */ { "cdt", tDAYZONE, HOUR( 5) }, /* Chile Daylight */ { "ast", tZONE, HOUR( 5) }, /* Acre Standard */ { "adt", tDAYZONE, HOUR( 5) }, /* Acre Daylight */ { "cst", tZONE, HOUR( 5) }, /* Cuba Standard */ { "cdt", tDAYZONE, HOUR( 5) }, /* Cuba Daylight */ { "est", tZONE, HOUR( 6) }, /* Easter Island Standard */ { "edt", tDAYZONE, HOUR( 6) }, /* Easter Island Daylight */ { "sst", tZONE, HOUR(11) }, /* Samoa Standard */ { "ist", tZONE, -HOUR(2) }, /* Israel Standard */ { "idt", tDAYZONE, -HOUR(2) }, /* Israel Daylight */ { "idt", tDAYZONE, -(HOUR(3)+30) }, /* Iran Daylight */ { "ist", tZONE, -(HOUR(3)+30) }, /* Iran Standard */ { "cst", tZONE, -HOUR(8) }, /* China Standard */ { "cdt", tDAYZONE, -HOUR(8) }, /* China Daylight */ { "sst", tZONE, -HOUR(8) }, /* Singapore Standard */ /* Dubious (e.g., not in Olson's TIMEZONE package) or obsolete. */ { "gst", tZONE, HOUR( 3) }, /* Greenland Standard */ { "wat", tZONE, -HOUR(1) }, /* West Africa */ { "at", tZONE, HOUR( 2) }, /* Azores */ { "gst", tZONE, -HOUR(10) }, /* Guam Standard */ { "nft", tZONE, HOUR(3)+30 }, /* Newfoundland */ { "idlw", tZONE, HOUR(12) }, /* International Date Line West */ { "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 */ { "bt", tZONE, -HOUR(3) }, /* Baghdad */ { "it", tZONE, -(HOUR(3)+30) }, /* Iran */ { "zp4", tZONE, -HOUR(4) }, /* USSR Zone 3 */ { "zp5", tZONE, -HOUR(5) }, /* USSR Zone 4 */ { "ist", tZONE, -(HOUR(5)+30) }, /* Indian Standard */ { "zp6", tZONE, -HOUR(6) }, /* USSR Zone 5 */ { "nst", tZONE, -HOUR(7) }, /* North Sumatra */ { "sst", tZONE, -HOUR(7) }, /* South Sumatra */ { "jt", tZONE, -(HOUR(7)+30) }, /* Java (3pm in Cronusland!) */ { "nzt", tZONE, -HOUR(12) }, /* New Zealand */ { "idle", tZONE, -HOUR(12) }, /* International Date Line East */ { "cat", tZONE, HOUR(10) }, /* -- expired 1967 */ { "nt", tZONE, HOUR(11) }, /* -- expired 1967 */ { "ahst", tZONE, HOUR(10) }, /* -- expired 1983 */ { "hdt", tDAYZONE, HOUR(10) }, /* -- expired 1986 */ #endif /* 0 */ }; static time_t ToSeconds( time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian) { if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 61) return -1; if (Meridian == MER24) { if (Hours < 0 || Hours > 23) return -1; } else { if (Hours < 1 || Hours > 12) return -1; if (Hours == 12) Hours = 0; if (Meridian == MERpm) Hours += 12; } return (Hours * 60L + Minutes) * 60L + Seconds; } static time_t Convert( time_t Month, time_t Day, time_t Year, time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian, DSTMODE dst) { static const int DaysNormal[13] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; static const int DaysLeap[13] = { 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; static const int LeapYears[] = { 1972, 1976, 1980, 1984, 1988, 1992, 1996, 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036 }; const int *yp; const int *mp; int i; time_t Julian; time_t tod; if (Year < 0) Year = -Year; if (Year < 70) Year += 2000; if (Year < 100) Year += 1900; if (Year < EPOCH) Year += 100; for (mp = DaysNormal, yp = LeapYears; yp < ENDOF(LeapYears); yp++) if (Year == *yp) { mp = DaysLeap; break; } if (Year < EPOCH || Year > END_OF_TIME || Month < 1 || Month > 12 /* NOSTRICT */ /* conversion from long may lose accuracy */ || Day < 1 || Day > mp[(int)Month]) { return -1; } Julian = Day - 1 + (Year - EPOCH) * 365; for (yp = LeapYears; yp < ENDOF(LeapYears); yp++, Julian++) { if (Year <= *yp) break; } for (i = 1; i < Month; i++) Julian += *++mp; Julian *= SECSPERDAY; Julian += yyTimezone * 60L; if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0) { return -1; } Julian += tod; tod = Julian; if (dst == DSTon || (dst == DSTmaybe && localtime(&tod)->tm_isdst)) Julian -= DST_OFFSET * 60 * 60; return Julian; } static time_t DSTcorrect( time_t Start, time_t Future) { time_t StartDay; time_t FutureDay; StartDay = (localtime(&Start)->tm_hour + 1) % 24; FutureDay = (localtime(&Future)->tm_hour + 1) % 24; return (Future - Start) + (StartDay - FutureDay) * DST_OFFSET * 60 * 60; } static time_t RelativeMonth( time_t Start, time_t RelMonth) { struct tm *tm; time_t Month; time_t Year; tm = localtime(&Start); Month = 12 * tm->tm_year + tm->tm_mon + RelMonth; Year = Month / 12 + 1900; Month = Month % 12 + 1; return DSTcorrect(Start, 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)); } static int LookupWord( char *buff, int length) { char *p; const char *q; const TABLE *tp; int c; p = buff; c = p[0]; /* See if we have an abbreviation for a month. */ if (length == 3 || (length == 4 && p[3] == '.')) { for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) { q = tp->name; if (c == q[0] && p[1] == q[1] && p[2] == q[2]) { yylval.Number = tp->value; return tp->type; } } } else { for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) { if (c == tp->name[0] && strcmp(p, tp->name) == 0) { yylval.Number = tp->value; return tp->type; } } } /* Try for a timezone. */ for (tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++) { if (c == tp->name[0] && p[1] == tp->name[1] && strcmp(p, tp->name) == 0) { yylval.Number = tp->value; return tp->type; } } if (strcmp(buff, "dst") == 0) return tDST; /* Try the units table. */ for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++) { if (c == tp->name[0] && strcmp(p, tp->name) == 0) { yylval.Number = tp->value; return tp->type; } } /* Strip off any plural and try the units table again. */ if (--length > 0 && p[length] == 's') { p[length] = '\0'; for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++) { if (c == tp->name[0] && strcmp(p, tp->name) == 0) { p[length] = 's'; yylval.Number = tp->value; return tp->type; } } p[length] = 's'; } length++; /* Drop out any periods. */ for (p = buff, q = (PD_STRING)buff; *q; q++) { if (*q != '.') *p++ = *q; } *p = '\0'; /* Try the meridians. */ if (buff[1] == 'm' && buff[2] == '\0') { if (buff[0] == 'a') { yylval.Meridian = MERam; return tMERIDIAN; } if (buff[0] == 'p') { yylval.Meridian = MERpm; return tMERIDIAN; } } /* If we saw any periods, try the timezones again. */ if (p - buff != length) { c = buff[0]; for (p = buff, tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++) { if (c == tp->name[0] && p[1] == tp->name[1] && strcmp(p, tp->name) == 0) { yylval.Number = tp->value; return tp->type; } } } /* Unknown word -- assume GMT timezone. */ yylval.Number = 0; return tZONE; } /* * This returns characters as-is (the ones that are not part of some token), * and codes greater than 256 (the token values). * * yacc generates tables that may use the character value. In particular, * byacc's yycheck[] table contains integer values for the expected codes from * this function, which (unless byacc is run locally) are ASCII codes. * * The TO_LOCAL() function assumes its input is in ASCII, and the output is * whatever native encoding is used on the machine, e.g., EBCDIC. * * The TO_ASCII() function is the inverse of TO_LOCAL(). */ static int date_lex(void) { int c; char *p; char buff[20]; int sign; int i; int nesting; for(;;) { /* Get first character after the whitespace. */ for(;;) { while (CTYPE(isspace, *yyInput)) yyInput++; c = *yyInput; /* Ignore RFC 822 comments, typically time zone names. */ if (c != LPAREN) break; for (nesting = 1; (c = *++yyInput) != RPAREN || --nesting; ) { if (c == LPAREN) { nesting++; } else if (!IS7BIT(c) || c == '\0' || c == '\r' || (c == '\\' && ((c = *++yyInput) == '\0' || !IS7BIT(c)))) { /* Lexical error: bad comment. */ return '?'; } } yyInput++; } /* A number? */ if (CTYPE(isdigit, c) || c == '-' || c == '+') { if (c == '-' || c == '+') { sign = c == '-' ? -1 : 1; yyInput++; if (!CTYPE(isdigit, *yyInput)) { /* Return the isolated plus or minus sign. */ --yyInput; return *yyInput++; } } else { sign = 0; } for (p = buff; (c = *yyInput++) != '\0' && CTYPE(isdigit, c); ) { if (p < &buff[sizeof buff - 1]) *p++ = (char) c; } *p = '\0'; i = atoi(buff); yyInput--; yylval.Number = sign < 0 ? -i : i; return sign ? tSNUMBER : tUNUMBER; } /* A word? */ if (CTYPE(isalpha, c)) { for (p = buff; (c = *yyInput++) == '.' || CTYPE(isalpha, c); ) { if (p < &buff[sizeof buff - 1]) *p++ = (char) (CTYPE(isupper, c) ? tolower(c) : c); } *p = '\0'; yyInput--; return LookupWord(buff, p - buff); } return *yyInput++; } } static int GetTimeInfo( TIMEINFO *Now) { static time_t LastTime; static long LastTzone; struct tm *tm; #if defined(HAVE_GETTIMEOFDAY) struct timeval tv; #endif /* defined(HAVE_GETTIMEOFDAY) */ #if defined(DONT_HAVE_TM_GMTOFF) struct tm local; struct tm gmt; #endif /* !defined(DONT_HAVE_TM_GMTOFF) */ /* Get the basic time. */ #if defined(HAVE_GETTIMEOFDAY) if (gettimeofday(&tv, (struct timezone *)NULL) == -1) return -1; Now->time = tv.tv_sec; Now->usec = tv.tv_usec; #else /* Can't check for -1 since that might be a time, I guess. */ (void)time(&Now->time); Now->usec = 0; #endif /* defined(HAVE_GETTIMEOFDAY) */ /* Now get the timezone if it's been an hour since the last time. */ if (Now->time - LastTime > 60 * 60) { LastTime = Now->time; if ((tm = localtime(&Now->time)) == NULL) return -1; #if defined(DONT_HAVE_TM_GMTOFF) /* To get the timezone, compare localtime with GMT. */ local = *tm; if ((tm = gmtime(&Now->time)) == NULL) return -1; gmt = *tm; /* Assume we are never more than 24 hours away. */ LastTzone = gmt.tm_yday - local.tm_yday; if (LastTzone > 1) LastTzone = -24; else if (LastTzone < -1) LastTzone = 24; else LastTzone *= 24; /* Scale in the hours and minutes; ignore seconds. */ LastTzone += gmt.tm_hour - local.tm_hour; LastTzone *= 60; LastTzone += gmt.tm_min - local.tm_min; #else LastTzone = (0 - tm->tm_gmtoff) / 60; #endif /* defined(DONT_HAVE_TM_GMTOFF) */ } Now->tzone = LastTzone; return 0; } time_t parsedate( char *p, TIMEINFO *now) { struct tm *tm; TIMEINFO ti; time_t Start; yyInput = p; if (now == NULL) { now = &ti; (void)GetTimeInfo(&ti); } tm = localtime(&now->time); yyYear = tm->tm_year + 1900; yyMonth = tm->tm_mon + 1; yyDay = tm->tm_mday; yyTimezone = now->tzone; if (tm->tm_isdst) /* Correct timezone offset for DST */ yyTimezone += DST_OFFSET * 60; yyDSTmode = DSTmaybe; yyHour = 0; yyMinutes = 0; yySeconds = 0; yyMeridian = MER24; yyRelSeconds = 0; yyRelMonth = 0; yyHaveDate = 0; yyHaveRel = 0; yyHaveTime = 0; if (date_parse() || yyHaveTime > 1 || yyHaveDate > 1) return -1; if (yyHaveDate || yyHaveTime) { Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds, yyMeridian, yyDSTmode); if (Start < 0) return -1; } else { Start = now->time; if (!yyHaveRel) Start -= (tm->tm_hour * 60L + tm->tm_min) * 60L + tm->tm_sec; } Start += yyRelSeconds; if (yyRelMonth) Start += RelativeMonth(Start, yyRelMonth); /* Have to do *something* with a legitimate -1 so it's distinguishable * from the error return value. (Alternately could set errno on error.) */ return Start == -1 ? 0 : Start; }


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