| %{ |
| /* |
| ** 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 |
| |
| /* 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 |
| |
| /* The last #include file should be: */ |
| #ifdef MALLOCDEBUG |
| #include "memdebug.h" |
| #endif |
| |
| #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: |
| abort (); |
| } |
| /* NOTREACHED */ |
| } |
| |
| 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; |
| } |
| |
| #if defined (TEST) |
| |
| /* ARGSUSED */ |
| int |
| main (int ac, char *av[]) |
| { |
| char buff[MAX_BUFF_LEN + 1]; |
| time_t d; |
| |
| (void) printf ("Enter date, or blank line to exit.\n\t> "); |
| (void) fflush (stdout); |
| |
| buff[MAX_BUFF_LEN] = 0; |
| while (fgets (buff, MAX_BUFF_LEN, stdin) && buff[0]) |
| { |
| d = curl_getdate (buff, (time_t *) NULL); |
| if (d == -1) |
| (void) printf ("Bad format - couldn't convert.\n"); |
| else |
| (void) printf ("%s", ctime (&d)); |
| (void) printf ("\t> "); |
| (void) fflush (stdout); |
| } |
| exit (0); |
| /* NOTREACHED */ |
| } |
| #endif /* defined (TEST) */ |