diff options
Diffstat (limited to 'lib/getdate.y')
| -rw-r--r-- | lib/getdate.y | 1081 |
1 files changed, 0 insertions, 1081 deletions
diff --git a/lib/getdate.y b/lib/getdate.y deleted file mode 100644 index 2ea894838..000000000 --- a/lib/getdate.y +++ /dev/null @@ -1,1081 +0,0 @@ -%{ -/* -** 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@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990. -** -** This code has been modified since it was included in curl, to make it -** thread-safe and to make compilers complain less about it. -** -** This code is in the public domain and has no copyright. -*/ - -#include "setup.h" - -# ifdef HAVE_ALLOCA_H -# include <alloca.h> -# endif - -# ifdef HAVE_TIME_H -# include <time.h> -# endif - -#ifndef YYDEBUG - /* to satisfy gcc -Wundef, we set this to 0 */ -#define YYDEBUG 0 -#endif - -#ifndef YYSTACK_USE_ALLOCA - /* to satisfy gcc -Wundef, we set this to 0 */ -#define YYSTACK_USE_ALLOCA 0 -#endif - -/* Since the code of getdate.y is not included in the Emacs executable - itself, there is no need to #define static in this file. Even if - the code were included in the Emacs executable, it probably - wouldn't do any harm to #undef it here; this will only cause - problems if we try to write to a static variable, which I don't - think this code needs to do. */ -#ifdef emacs -# undef static -#endif - -#ifdef __APPLE__ -#include <sys/types.h> -#include <sys/malloc.h> -#else - -#endif -#include <string.h> -#include <stdio.h> -#include <ctype.h> - -#if HAVE_STDLIB_H -# include <stdlib.h> /* for `free'; used by Bison 1.27 */ -#else - -#ifdef HAVE_MALLOC_H -#include <malloc.h> -#endif - -#endif - -#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII)) -# define IN_CTYPE_DOMAIN(c) 1 -#else -# define IN_CTYPE_DOMAIN(c) isascii(c) -#endif - -#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c)) -#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c)) -#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c)) -#define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (c)) - -/* ISDIGIT differs from ISDIGIT_LOCALE, as follows: - - Its arg may be any int or unsigned int; it need not be an unsigned char. - - It's guaranteed to evaluate its argument exactly once. - - It's typically faster. - Posix 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that - only '0' through '9' are digits. Prefer ISDIGIT to ISDIGIT_LOCALE unless - it's important to use the locale's definition of `digit' even when the - host does not conform to Posix. */ -#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9) - -#if defined (STDC_HEADERS) || defined (USG) -# include <string.h> -#endif - -#include "memory.h" -/* The last #include file should be: */ -#include "memdebug.h" - -#ifndef YYMAXDEPTH -#define YYMAXDEPTH 0 -#endif - -#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) -# define __attribute__(x) -#endif - -#ifndef ATTRIBUTE_UNUSED -# define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) -#endif - -/* Some old versions of bison generate parsers that use bcopy. - That loses on systems that don't provide the function, so we have - to redefine it here. */ -#if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy) -# define bcopy(from, to, len) memcpy ((to), (from), (len)) -#endif - -/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc), - as well as gratuitiously global symbol names, so we can have multiple - yacc generated parsers in the same program. Note that these are only - the variables produced by yacc. If other parser generators (bison, - byacc, etc) produce additional global names that conflict at link time, - then those parser generators need to be fixed instead of adding those - names to this list. */ - -#define yymaxdepth Curl_gd_maxdepth -#define yyparse Curl_gd_parse -#define yylex Curl_gd_lex -#define yyerror Curl_gd_error -#define yylval Curl_gd_lval -#define yychar Curl_gd_char -#define yydebug Curl_gd_debug -#define yypact Curl_gd_pact -#define yyr1 Curl_gd_r1 -#define yyr2 Curl_gd_r2 -#define yydef Curl_gd_def -#define yychk Curl_gd_chk -#define yypgo Curl_gd_pgo -#define yyact Curl_gd_act -#define yyexca Curl_gd_exca -#define yyerrflag Curl_gd_errflag -#define yynerrs Curl_gd_nerrs -#define yyps Curl_gd_ps -#define yypv Curl_gd_pv -#define yys Curl_gd_s -#define yy_yys Curl_gd_yys -#define yystate Curl_gd_state -#define yytmp Curl_gd_tmp -#define yyv Curl_gd_v -#define yy_yyv Curl_gd_yyv -#define yyval Curl_gd_val -#define yylloc Curl_gd_lloc -#define yyreds Curl_gd_reds /* With YYDEBUG defined */ -#define yytoks Curl_gd_toks /* With YYDEBUG defined */ -#define yylhs Curl_gd_yylhs -#define yylen Curl_gd_yylen -#define yydefred Curl_gd_yydefred -#define yydgoto Curl_gd_yydgoto -#define yysindex Curl_gd_yysindex -#define yyrindex Curl_gd_yyrindex -#define yygindex Curl_gd_yygindex -#define yytable Curl_gd_yytable -#define yycheck Curl_gd_yycheck - -#define EPOCH 1970 -#define HOUR(x) ((x) * 60) - -#define MAX_BUFF_LEN 128 /* size of buffer to read the date into */ - -/* -** An entry in the lexical lookup table. -*/ -typedef struct _TABLE { - const char *name; - int type; - int value; -} TABLE; - - -/* -** Meridian: am, pm, or 24-hour style. -*/ -typedef enum _MERIDIAN { - MERam, MERpm, MER24 -} MERIDIAN; - -/* parse results and input string */ -typedef struct _CURL_CONTEXT { - const char *yyInput; - int yyDayOrdinal; - int yyDayNumber; - int yyHaveDate; - int yyHaveDay; - int yyHaveRel; - int yyHaveTime; - int yyHaveZone; - int yyTimezone; - int yyDay; - int yyHour; - int yyMinutes; - int yyMonth; - int yySeconds; - int yyYear; - MERIDIAN yyMeridian; - int yyRelDay; - int yyRelHour; - int yyRelMinutes; - int yyRelMonth; - int yyRelSeconds; - int yyRelYear; -} CURL_CONTEXT; - -/* enable use of extra argument to yyparse and yylex which can be used to pass -** in a user defined value (CURL_CONTEXT struct in our case) -*/ -#define YYPARSE_PARAM cookie -#define YYLEX_PARAM cookie -#define context ((CURL_CONTEXT *) cookie) -%} - -/* This grammar has 13 shift/reduce conflicts. */ -%expect 13 - -/* turn global variables into locals, additionally enable extra arguments -** for yylex (pointer to yylval and user defined value) -*/ -%pure_parser - -%union { - int Number; - enum _MERIDIAN Meridian; -} - -%{ -static int yylex (YYSTYPE *yylval, void *cookie); -static int yyerror (const char *s); -%} - -%token tAGO tDAY tDAY_UNIT tDAYZONE tDST tHOUR_UNIT tID -%token tMERIDIAN tMINUTE_UNIT tMONTH tMONTH_UNIT -%token tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE - -%type <Number> tDAY tDAY_UNIT tDAYZONE tHOUR_UNIT tMINUTE_UNIT -%type <Number> tMONTH tMONTH_UNIT -%type <Number> tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE -%type <Meridian> tMERIDIAN o_merid - -%% - -spec : /* NULL */ - | spec item - ; - -item : time { - context->yyHaveTime++; - } - | zone { - context->yyHaveZone++; - } - | date { - context->yyHaveDate++; - } - | day { - context->yyHaveDay++; - } - | rel { - context->yyHaveRel++; - } - | number - ; - -time : tUNUMBER tMERIDIAN { - context->yyHour = $1; - context->yyMinutes = 0; - context->yySeconds = 0; - context->yyMeridian = $2; - } - | tUNUMBER ':' tUNUMBER o_merid { - context->yyHour = $1; - context->yyMinutes = $3; - context->yySeconds = 0; - context->yyMeridian = $4; - } - | tUNUMBER ':' tUNUMBER tSNUMBER { - context->yyHour = $1; - context->yyMinutes = $3; - context->yyMeridian = MER24; - context->yyHaveZone++; - context->yyTimezone = ($4 < 0 - ? -$4 % 100 + (-$4 / 100) * 60 - : - ($4 % 100 + ($4 / 100) * 60)); - } - | tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid { - context->yyHour = $1; - context->yyMinutes = $3; - context->yySeconds = $5; - context->yyMeridian = $6; - } - | tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER { - context->yyHour = $1; - context->yyMinutes = $3; - context->yySeconds = $5; - context->yyMeridian = MER24; - context->yyHaveZone++; - context->yyTimezone = ($6 < 0 - ? -$6 % 100 + (-$6 / 100) * 60 - : - ($6 % 100 + ($6 / 100) * 60)); - } - ; - -zone : tZONE { - context->yyTimezone = $1; - } - | tDAYZONE { - context->yyTimezone = $1 - 60; - } - | - tZONE tDST { - context->yyTimezone = $1 - 60; - } - ; - -day : tDAY { - context->yyDayOrdinal = 1; - context->yyDayNumber = $1; - } - | tDAY ',' { - context->yyDayOrdinal = 1; - context->yyDayNumber = $1; - } - | tUNUMBER tDAY { - context->yyDayOrdinal = $1; - context->yyDayNumber = $2; - } - ; - -date : tUNUMBER '/' tUNUMBER { - context->yyMonth = $1; - context->yyDay = $3; - } - | tUNUMBER '/' tUNUMBER '/' tUNUMBER { - /* Interpret as YYYY/MM/DD if $1 >= 1000, otherwise as MM/DD/YY. - The goal in recognizing YYYY/MM/DD is solely to support legacy - machine-generated dates like those in an RCS log listing. If - you want portability, use the ISO 8601 format. */ - if ($1 >= 1000) - { - context->yyYear = $1; - context->yyMonth = $3; - context->yyDay = $5; - } - else - { - context->yyMonth = $1; - context->yyDay = $3; - context->yyYear = $5; - } - } - | tUNUMBER tSNUMBER tSNUMBER { - /* ISO 8601 format. yyyy-mm-dd. */ - context->yyYear = $1; - context->yyMonth = -$2; - context->yyDay = -$3; - } - | tUNUMBER tMONTH tSNUMBER { - /* e.g. 17-JUN-1992. */ - context->yyDay = $1; - context->yyMonth = $2; - context->yyYear = -$3; - } - | tMONTH tUNUMBER { - context->yyMonth = $1; - context->yyDay = $2; - } - | tMONTH tUNUMBER ',' tUNUMBER { - context->yyMonth = $1; - context->yyDay = $2; - context->yyYear = $4; - } - | tUNUMBER tMONTH { - context->yyMonth = $2; - context->yyDay = $1; - } - | tUNUMBER tMONTH tUNUMBER { - context->yyMonth = $2; - context->yyDay = $1; - context->yyYear = $3; - } - ; - -rel : relunit tAGO { - context->yyRelSeconds = -context->yyRelSeconds; - context->yyRelMinutes = -context->yyRelMinutes; - context->yyRelHour = -context->yyRelHour; - context->yyRelDay = -context->yyRelDay; - context->yyRelMonth = -context->yyRelMonth; - context->yyRelYear = -context->yyRelYear; - } - | relunit - ; - -relunit : tUNUMBER tYEAR_UNIT { - context->yyRelYear += $1 * $2; - } - | tSNUMBER tYEAR_UNIT { - context->yyRelYear += $1 * $2; - } - | tYEAR_UNIT { - context->yyRelYear += $1; - } - | tUNUMBER tMONTH_UNIT { - context->yyRelMonth += $1 * $2; - } - | tSNUMBER tMONTH_UNIT { - context->yyRelMonth += $1 * $2; - } - | tMONTH_UNIT { - context->yyRelMonth += $1; - } - | tUNUMBER tDAY_UNIT { - context->yyRelDay += $1 * $2; - } - | tSNUMBER tDAY_UNIT { - context->yyRelDay += $1 * $2; - } - | tDAY_UNIT { - context->yyRelDay += $1; - } - | tUNUMBER tHOUR_UNIT { - context->yyRelHour += $1 * $2; - } - | tSNUMBER tHOUR_UNIT { - context->yyRelHour += $1 * $2; - } - | tHOUR_UNIT { - context->yyRelHour += $1; - } - | tUNUMBER tMINUTE_UNIT { - context->yyRelMinutes += $1 * $2; - } - | tSNUMBER tMINUTE_UNIT { - context->yyRelMinutes += $1 * $2; - } - | tMINUTE_UNIT { - context->yyRelMinutes += $1; - } - | tUNUMBER tSEC_UNIT { - context->yyRelSeconds += $1 * $2; - } - | tSNUMBER tSEC_UNIT { - context->yyRelSeconds += $1 * $2; - } - | tSEC_UNIT { - context->yyRelSeconds += $1; - } - ; - -number : tUNUMBER - { - if (context->yyHaveTime && context->yyHaveDate && - !context->yyHaveRel) - context->yyYear = $1; - else - { - if ($1>10000) - { - context->yyHaveDate++; - context->yyDay= ($1)%100; - context->yyMonth= ($1/100)%100; - context->yyYear = $1/10000; - } - else - { - context->yyHaveTime++; - if ($1 < 100) - { - context->yyHour = $1; - context->yyMinutes = 0; - } - else - { - context->yyHour = $1 / 100; - context->yyMinutes = $1 % 100; - } - context->yySeconds = 0; - context->yyMeridian = MER24; - } - } - } - ; - -o_merid : /* NULL */ - { - $$ = MER24; - } - | tMERIDIAN - { - $$ = $1; - } - ; - -%% - -/* Include this file down here because bison inserts code above which - may define-away `const'. We want the prototype for get_date to have - the same signature as the function definition does. */ -#include "getdate.h" - -#ifndef WIN32 /* the windows dudes don't need these, does anyone really? */ -extern struct tm *gmtime (const time_t *); -extern struct tm *localtime (const time_t *); -extern time_t mktime (struct tm *); -#endif - -/* Month and day table. */ -static TABLE const 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 TABLE const UnitsTable[] = { - { "year", tYEAR_UNIT, 1 }, - { "month", tMONTH_UNIT, 1 }, - { "fortnight", tDAY_UNIT, 14 }, - { "week", tDAY_UNIT, 7 }, - { "day", tDAY_UNIT, 1 }, - { "hour", tHOUR_UNIT, 1 }, - { "minute", tMINUTE_UNIT, 1 }, - { "min", tMINUTE_UNIT, 1 }, - { "second", tSEC_UNIT, 1 }, - { "sec", tSEC_UNIT, 1 }, - { NULL, 0, 0 } -}; - -/* Assorted relative-time words. */ -static TABLE const OtherTable[] = { - { "tomorrow", tMINUTE_UNIT, 1 * 24 * 60 }, - { "yesterday", tMINUTE_UNIT, -1 * 24 * 60 }, - { "today", tMINUTE_UNIT, 0 }, - { "now", tMINUTE_UNIT, 0 }, - { "last", tUNUMBER, -1 }, - { "this", tMINUTE_UNIT, 0 }, - { "next", tUNUMBER, 1 }, - { "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 }, - { "ago", tAGO, 1 }, - { NULL, 0, 0 } -}; - -/* The timezone table. */ -static TABLE const TimezoneTable[] = { - { "gmt", tZONE, HOUR ( 0) }, /* Greenwich Mean */ - { "ut", tZONE, HOUR ( 0) }, /* Universal (Coordinated) */ - { "utc", tZONE, HOUR ( 0) }, - { "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 -#if 0 - { "nft", tZONE, HOUR (3.5) }, /* Newfoundland */ - { "nst", tZONE, HOUR (3.5) }, /* Newfoundland Standard */ - { "ndt", tDAYZONE, HOUR (3.5) }, /* Newfoundland Daylight */ -#endif - { "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 */ - { "met", tZONE, -HOUR (1) }, /* Middle European */ - { "mewt", tZONE, -HOUR (1) }, /* Middle European Winter */ - { "mest", tDAYZONE, -HOUR (1) }, /* Middle European Summer */ - { "mesz", 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 */ -#if 0 - { "it", tZONE, -HOUR (3.5) },/* Iran */ -#endif - { "zp4", tZONE, -HOUR (4) }, /* USSR Zone 3 */ - { "zp5", tZONE, -HOUR (5) }, /* USSR Zone 4 */ -#if 0 - { "ist", tZONE, -HOUR (5.5) },/* Indian Standard */ -#endif - { "zp6", tZONE, -HOUR (6) }, /* USSR Zone 5 */ -#if 0 - /* For completeness. NST is also Newfoundland Standard, and SST is - * also Swedish Summer. */ - { "nst", tZONE, -HOUR (6.5) },/* 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 */ -#if 0 - { "jt", tZONE, -HOUR (7.5) },/* Java (3pm in Cronusland!) */ -#endif - { "cct", tZONE, -HOUR (8) }, /* China Coast, USSR Zone 7 */ - { "jst", tZONE, -HOUR (9) }, /* Japan Standard, USSR Zone 8 */ -#if 0 - { "cast", tZONE, -HOUR (9.5) },/* Central Australian Standard */ - { "cadt", tDAYZONE, -HOUR (9.5) },/* Central Australian Daylight */ -#endif - { "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 */ - { NULL, 0, 0 } -}; - -/* Military timezone table. */ -static TABLE const 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, 0, 0 } -}; - - - - -/* ARGSUSED */ -static int -yyerror (const char *s ATTRIBUTE_UNUSED) -{ - return 0; -} - -static int -ToHour (int Hours, MERIDIAN Meridian) -{ - switch (Meridian) - { - case MER24: - if (Hours < 0 || Hours > 23) - return -1; - return Hours; - case MERam: - if (Hours < 1 || Hours > 12) - return -1; - if (Hours == 12) - Hours = 0; - return Hours; - case MERpm: - if (Hours < 1 || Hours > 12) - return -1; - if (Hours == 12) - Hours = 0; - return Hours + 12; - default: - break; /* used to do abort() here */ - } - /* NOTREACHED - but make gcc happy! */ - return -1; -} - -static int -ToYear (int Year) -{ - if (Year < 0) - Year = -Year; - - /* XPG4 suggests that years 00-68 map to 2000-2068, and - years 69-99 map to 1969-1999. */ - if (Year < 69) - Year += 2000; - else if (Year < 100) - Year += 1900; - - return Year; -} - -static int -LookupWord (YYSTYPE *yylval, char *buff) -{ - char *p; - char *q; - const TABLE *tp; - size_t i; - int abbrev; - - /* Make it lowercase. */ - for (p = buff; *p; p++) - if (ISUPPER ((unsigned char) *p)) - *p = tolower ((int)*p); - - if (strcmp (buff, "am") == 0 || strcmp (buff, "a.m.") == 0) - { - yylval->Meridian = MERam; - return tMERIDIAN; - } - if (strcmp (buff, "pm") == 0 || strcmp (buff, "p.m.") == 0) - { - yylval->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) - { - yylval->Number = tp->value; - return tp->type; - } - } - else if (strcmp (buff, tp->name) == 0) - { - yylval->Number = tp->value; - return tp->type; - } - } - - for (tp = TimezoneTable; tp->name; tp++) - if (strcmp (buff, tp->name) == 0) - { - yylval->Number = tp->value; - return tp->type; - } - - if (strcmp (buff, "dst") == 0) - return tDST; - - for (tp = UnitsTable; tp->name; tp++) - if (strcmp (buff, tp->name) == 0) - { - yylval->Number = tp->value; - return tp->type; - } - - /* Strip off any plural and try the units table again. */ - i = strlen (buff) - 1; - if (buff[i] == 's') - { - buff[i] = '\0'; - for (tp = UnitsTable; tp->name; tp++) - if (strcmp (buff, tp->name) == 0) - { - yylval->Number = tp->value; - return tp->type; - } - buff[i] = 's'; /* Put back for "this" in OtherTable. */ - } - - for (tp = OtherTable; tp->name; tp++) - if (strcmp (buff, tp->name) == 0) - { - yylval->Number = tp->value; - return tp->type; - } - - /* Military timezones. */ - if (buff[1] == '\0' && ISALPHA ((unsigned char) *buff)) - { - for (tp = MilitaryTable; tp->name; tp++) - if (strcmp (buff, tp->name) == 0) - { - yylval->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) - { - yylval->Number = tp->value; - return tp->type; - } - - return tID; -} - -static int -yylex (YYSTYPE *yylval, void *cookie) -{ - register unsigned char c; - register char *p; - char buff[20]; - int Count; - int sign; - - for (;;) - { - while (ISSPACE ((unsigned char) *context->yyInput)) - context->yyInput++; - - if (ISDIGIT (c = *context->yyInput) || c == '-' || c == '+') - { - if (c == '-' || c == '+') - { - sign = c == '-' ? -1 : 1; - if (!ISDIGIT (*++context->yyInput)) - /* skip the '-' sign */ - continue; - } - else - sign = 0; - for (yylval->Number = 0; ISDIGIT (c = *context->yyInput++);) - yylval->Number = 10 * yylval->Number + c - '0'; - context->yyInput--; - if (sign < 0) - yylval->Number = -yylval->Number; - return sign ? tSNUMBER : tUNUMBER; - } - if (ISALPHA (c)) - { - for (p = buff; (c = *context->yyInput++, ISALPHA (c)) || c == '.';) - if (p < &buff[sizeof buff - 1]) - *p++ = c; - *p = '\0'; - context->yyInput--; - return LookupWord (yylval, buff); - } - if (c != '(') - return *context->yyInput++; - Count = 0; - do - { - c = *context->yyInput++; - if (c == '\0') - return c; - if (c == '(') - Count++; - else if (c == ')') - Count--; - } - while (Count > 0); - } -} - -#define TM_YEAR_ORIGIN 1900 - -/* Yield A - B, measured in seconds. */ -static long -difftm (struct tm *a, struct tm *b) -{ - int ay = a->tm_year + (TM_YEAR_ORIGIN - 1); - int by = b->tm_year + (TM_YEAR_ORIGIN - 1); - long days = ( - /* difference in day of year */ - a->tm_yday - b->tm_yday - /* + intervening leap days */ - + ((ay >> 2) - (by >> 2)) - - (ay / 100 - by / 100) - + ((ay / 100 >> 2) - (by / 100 >> 2)) - /* + difference in years * 365 */ - + (long) (ay - by) * 365 - ); - return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) - + (a->tm_min - b->tm_min)) - + (a->tm_sec - b->tm_sec)); -} - -time_t -curl_getdate (const char *p, const time_t *now) -{ - struct tm tm, tm0, *tmp; - time_t Start; - CURL_CONTEXT cookie; -#ifdef HAVE_LOCALTIME_R - struct tm keeptime; -#endif - cookie.yyInput = p; - Start = now ? *now : time ((time_t *) NULL); -#ifdef HAVE_LOCALTIME_R - tmp = (struct tm *)localtime_r(&Start, &keeptime); -#else - tmp = localtime (&Start); -#endif - if (!tmp) - return -1; - cookie.yyYear = tmp->tm_year + TM_YEAR_ORIGIN; - cookie.yyMonth = tmp->tm_mon + 1; - cookie.yyDay = tmp->tm_mday; - cookie.yyHour = tmp->tm_hour; - cookie.yyMinutes = tmp->tm_min; - cookie.yySeconds = tmp->tm_sec; - tm.tm_isdst = tmp->tm_isdst; - cookie.yyMeridian = MER24; - cookie.yyRelSeconds = 0; - cookie.yyRelMinutes = 0; - cookie.yyRelHour = 0; - cookie.yyRelDay = 0; - cookie.yyRelMonth = 0; - cookie.yyRelYear = 0; - cookie.yyHaveDate = 0; - cookie.yyHaveDay = 0; - cookie.yyHaveRel = 0; - cookie.yyHaveTime = 0; - cookie.yyHaveZone = 0; - - if (yyparse (&cookie) - || cookie.yyHaveTime > 1 || cookie.yyHaveZone > 1 || - cookie.yyHaveDate > 1 || cookie.yyHaveDay > 1) - return -1; - - tm.tm_year = ToYear (cookie.yyYear) - TM_YEAR_ORIGIN + cookie.yyRelYear; - tm.tm_mon = cookie.yyMonth - 1 + cookie.yyRelMonth; - tm.tm_mday = cookie.yyDay + cookie.yyRelDay; - if (cookie.yyHaveTime || - (cookie.yyHaveRel && !cookie.yyHaveDate && !cookie.yyHaveDay)) - { - tm.tm_hour = ToHour (cookie.yyHour, cookie.yyMeridian); - if (tm.tm_hour < 0) - return -1; - tm.tm_min = cookie.yyMinutes; - tm.tm_sec = cookie.yySeconds; - } - else - { - tm.tm_hour = tm.tm_min = tm.tm_sec = 0; - } - tm.tm_hour += cookie.yyRelHour; - tm.tm_min += cookie.yyRelMinutes; - tm.tm_sec += cookie.yyRelSeconds; - - /* Let mktime deduce tm_isdst if we have an absolute timestamp, - or if the relative timestamp mentions days, months, or years. */ - if (cookie.yyHaveDate | cookie.yyHaveDay | cookie.yyHaveTime | - cookie.yyRelDay | cookie.yyRelMonth | cookie.yyRelYear) - tm.tm_isdst = -1; - - tm0 = tm; - - Start = mktime (&tm); - - if (Start == (time_t) -1) - { - - /* Guard against falsely reporting errors near the time_t boundaries - when parsing times in other time zones. For example, if the min - time_t value is 1970-01-01 00:00:00 UTC and we are 8 hours ahead - of UTC, then the min localtime value is 1970-01-01 08:00:00; if - we apply mktime to 1970-01-01 00:00:00 we will get an error, so - we apply mktime to 1970-01-02 08:00:00 instead and adjust the time - zone by 24 hours to compensate. This algorithm assumes that - there is no DST transition within a day of the time_t boundaries. */ - if (cookie.yyHaveZone) - { - tm = tm0; - if (tm.tm_year <= EPOCH - TM_YEAR_ORIGIN) - { - tm.tm_mday++; - cookie.yyTimezone -= 24 * 60; - } - else - { - tm.tm_mday--; - cookie.yyTimezone += 24 * 60; - } - Start = mktime (&tm); - } - - if (Start == (time_t) -1) - return Start; - } - - if (cookie.yyHaveDay && !cookie.yyHaveDate) - { - tm.tm_mday += ((cookie.yyDayNumber - tm.tm_wday + 7) % 7 - + 7 * (cookie.yyDayOrdinal - (0 < cookie.yyDayOrdinal))); - Start = mktime (&tm); - if (Start == (time_t) -1) - return Start; - } - - if (cookie.yyHaveZone) - { - long delta; - struct tm *gmt; -#ifdef HAVE_GMTIME_R - /* thread-safe version */ - struct tm keeptime2; - gmt = (struct tm *)gmtime_r(&Start, &keeptime2); -#else - gmt = gmtime(&Start); -#endif - if (!gmt) - return -1; - delta = cookie.yyTimezone * 60L + difftm (&tm, gmt); - if ((Start + delta < Start) != (delta < 0)) - return -1; /* time_t overflow */ - Start += delta; - } - - return Start; -} |