From: Art Cancro Date: Fri, 16 Dec 2005 04:13:19 +0000 (+0000) Subject: * Include a pre-fixed parsedate.c in the source tree in order to eliminate X-Git-Tag: v7.86~4366 X-Git-Url: https://code.citadel.org/?p=citadel.git;a=commitdiff_plain;h=a8cb9de18a5ca7ac238eb95340293d175d94fc3f * Include a pre-fixed parsedate.c in the source tree in order to eliminate the requirement for yacc or bison to build Citadel. Also, 'make clean' no longer deletes parsedate.c --- diff --git a/citadel/ChangeLog b/citadel/ChangeLog index f8023e4f9..9b99736f6 100644 --- a/citadel/ChangeLog +++ b/citadel/ChangeLog @@ -1,5 +1,10 @@ $Id$ +Thu Dec 15 23:12:05 EST 2005 ajc +* Include a pre-fixed parsedate.c in the source tree in order to eliminate + the requirement for yacc or bison to build Citadel. Also, 'make clean' + no longer deletes parsedate.c + Thu Dec 15 10:51:45 EST 2005 ajc * newinstall.sh: be smarter about how wget and curl are used diff --git a/citadel/Makefile.in b/citadel/Makefile.in index ab2b6402d..3a99502df 100644 --- a/citadel/Makefile.in +++ b/citadel/Makefile.in @@ -318,7 +318,7 @@ install-exec-new: all fi clean: - rm -f *.o parsedate.c + rm -f *.o cleaner: clean rm -rf $(CLIENT_TARGETS) $(SERVER_TARGETS) $(UTIL_TARGETS) *.la diff --git a/citadel/parsedate.c b/citadel/parsedate.c new file mode 100644 index 000000000..b7845b2fe --- /dev/null +++ b/citadel/parsedate.c @@ -0,0 +1,2109 @@ +/* A Bison parser, made by GNU Bison 1.875. */ + +/* Skeleton parser for Yacc-like parsing with Bison, + Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* As a special exception, when this file is copied by Bison into a + Bison output file, you may use that output file without restriction. + This special exception was added by the Free Software Foundation + in version 1.24 of Bison. */ + +/* Written by Richard Stallman by simplifying the original so called + ``semantic'' parser. */ + +/* All symbols defined below should begin with yy or YY, to avoid + infringing on user name space. This should be done even for local + variables, as they might otherwise be expanded by user macros. + There are some unavoidable exceptions within include files to + define necessary library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ + +/* Identify Bison output. */ +#define YYBISON 1 + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 0 + +/* Using locations. */ +#define YYLSP_NEEDED 0 + + + +/* Tokens. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + /* Put the tokens into the symbol table, so that GDB and other debuggers + know about them. */ + enum yytokentype { + tDAY = 258, + tDAYZONE = 259, + tMERIDIAN = 260, + tMONTH = 261, + tMONTH_UNIT = 262, + tSEC_UNIT = 263, + tSNUMBER = 264, + tUNUMBER = 265, + tZONE = 266 + }; +#endif +#define tDAY 258 +#define tDAYZONE 259 +#define tMERIDIAN 260 +#define tMONTH 261 +#define tMONTH_UNIT 262 +#define tSEC_UNIT 263 +#define tSNUMBER 264 +#define tUNUMBER 265 +#define tZONE 266 + + + + +/* Copy the first part of user declarations. */ +#line 1 "parsedate.y" + +/* $Revision: 4003 $ +** +** Originally written by Steven M. Bellovin while +** at the University of North Carolina at Chapel Hill. Later tweaked by +** a couple of people on Usenet. Completely overhauled by Rich $alz +** and Jim Berets in August, 1990. +** Further revised (removed obsolete constructs and cleaned up timezone +** names) in August, 1991, by Rich. Paul Eggert +** helped in September, 1992. Art Cancro cleaned +** it up for ANSI C in December, 1999. +** +** This grammar has six shift/reduce conflicts. +** +** 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 */ + +#include "sysdep.h" + +#include +#include +#include +#include + +#if TIME_WITH_SYS_TIME +# include +# include +#else +# if HAVE_SYS_TIME_H +# include +# else +# include +# endif +#endif + +#if HAVE_STRING_H +# if !STDC_HEADERS && HAVE_MEMORY_H +# include +# endif +# include +#endif +#if HAVE_STRINGS_H +# include +#endif + +#include "parsedate.h" + +int date_lex(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 ')' +#define IS7BIT(x) ((unsigned int)(x) < 0200) + +#define SIZEOF(array) ((int)(sizeof array / sizeof array[0])) +#define ENDOF(array) (&array[SIZEOF(array)]) + + +/* +** An entry in the lexical lookup table. +*/ +typedef struct _TABLE { + char *name; + int type; + time_t value; +} TABLE; + +/* +** Daylight-savings mode: on, off, or not yet known. +*/ +typedef enum _DSTMODE { + DSTon, DSToff, DSTmaybe +} DSTMODE; + +/* +** Meridian: am, pm, or 24-hour style. +*/ +typedef enum _MERIDIAN { + MERam, MERpm, MER24 +} MERIDIAN; + + +/* +** 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 void date_error(char *); + + +/* Enabling traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif + +/* Enabling verbose error messages. */ +#ifdef YYERROR_VERBOSE +# undef YYERROR_VERBOSE +# define YYERROR_VERBOSE 1 +#else +# define YYERROR_VERBOSE 0 +#endif + +#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) +#line 125 "parsedate.y" +typedef union YYSTYPE { + time_t Number; + enum _MERIDIAN Meridian; +} YYSTYPE; +/* Line 191 of yacc.c. */ +#line 226 "y.tab.c" +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 +# define YYSTYPE_IS_TRIVIAL 1 +#endif + + + +/* Copy the second part of user declarations. */ + + +/* Line 214 of yacc.c. */ +#line 238 "y.tab.c" + +#if ! defined (yyoverflow) || YYERROR_VERBOSE + +/* The parser invokes alloca or malloc; define the necessary symbols. */ + +# if YYSTACK_USE_ALLOCA +# define YYSTACK_ALLOC alloca +# else +# ifndef YYSTACK_USE_ALLOCA +# if defined (alloca) || defined (_ALLOCA_H) +# define YYSTACK_ALLOC alloca +# else +# ifdef __GNUC__ +# define YYSTACK_ALLOC __builtin_alloca +# endif +# endif +# endif +# endif + +# ifdef YYSTACK_ALLOC + /* Pacify GCC's `empty if-body' warning. */ +# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0) +# else +# if defined (__STDC__) || defined (__cplusplus) +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# endif +# define YYSTACK_ALLOC malloc +# define YYSTACK_FREE free +# endif +#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ + + +#if (! defined (yyoverflow) \ + && (! defined (__cplusplus) \ + || (YYSTYPE_IS_TRIVIAL))) + +/* A type that is properly aligned for any stack member. */ +union yyalloc +{ + short yyss; + YYSTYPE yyvs; + }; + +/* The size of the maximum gap between one aligned stack and the next. */ +# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1) + +/* The size of an array large to enough to hold all stacks, each with + N elements. */ +# define YYSTACK_BYTES(N) \ + ((N) * (sizeof (short) + sizeof (YYSTYPE)) \ + + YYSTACK_GAP_MAXIMUM) + +/* Copy COUNT objects from FROM to TO. The source and destination do + not overlap. */ +# ifndef YYCOPY +# if 1 < __GNUC__ +# define YYCOPY(To, From, Count) \ + __builtin_memcpy (To, From, (Count) * sizeof (*(From))) +# else +# define YYCOPY(To, From, Count) \ + do \ + { \ + register YYSIZE_T yyi; \ + for (yyi = 0; yyi < (Count); yyi++) \ + (To)[yyi] = (From)[yyi]; \ + } \ + while (0) +# endif +# endif + +/* Relocate STACK from its old location to the new one. The + local variables YYSIZE and YYSTACKSIZE give the old and new number of + elements in the stack, and YYPTR gives the new location of the + stack. Advance YYPTR to a properly aligned location for the next + stack. */ +# define YYSTACK_RELOCATE(Stack) \ + do \ + { \ + YYSIZE_T yynewbytes; \ + YYCOPY (&yyptr->Stack, Stack, yysize); \ + Stack = &yyptr->Stack; \ + yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ + yyptr += yynewbytes / sizeof (*yyptr); \ + } \ + while (0) + +#endif + +#if defined (__STDC__) || defined (__cplusplus) + typedef signed char yysigned_char; +#else + typedef short yysigned_char; +#endif + +/* YYFINAL -- State number of the termination state. */ +#define YYFINAL 2 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 40 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 15 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 9 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 30 +/* YYNRULES -- Number of states. */ +#define YYNSTATES 44 + +/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ +#define YYUNDEFTOK 2 +#define YYMAXUTOK 266 + +#define YYTRANSLATE(YYX) \ + ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) + +/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ +static const unsigned char yytranslate[] = +{ + 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 14, 2, 2, 13, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 12, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, + 5, 6, 7, 8, 9, 10, 11 +}; + +#if YYDEBUG +/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in + YYRHS. */ +static const unsigned char yyprhs[] = +{ + 0, 0, 3, 4, 7, 9, 12, 14, 16, 19, + 24, 29, 36, 43, 45, 47, 50, 52, 54, 58, + 64, 67, 72, 75, 79, 85, 88, 91, 94, 97, + 98 +}; + +/* YYRHS -- A `-1'-separated list of the rules' RHS. */ +static const yysigned_char yyrhs[] = +{ + 16, 0, -1, -1, 16, 17, -1, 18, -1, 18, + 19, -1, 21, -1, 22, -1, 10, 23, -1, 10, + 12, 10, 23, -1, 10, 12, 10, 20, -1, 10, + 12, 10, 12, 10, 23, -1, 10, 12, 10, 12, + 10, 20, -1, 11, -1, 4, -1, 11, 20, -1, + 20, -1, 9, -1, 10, 13, 10, -1, 10, 13, + 10, 13, 10, -1, 6, 10, -1, 6, 10, 14, + 10, -1, 10, 6, -1, 10, 6, 10, -1, 3, + 14, 10, 6, 10, -1, 9, 8, -1, 10, 8, + -1, 9, 7, -1, 10, 7, -1, -1, 5, -1 +}; + +/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ +static const unsigned short yyrline[] = +{ + 0, 139, 139, 140, 143, 152, 156, 159, 164, 176, + 182, 189, 195, 205, 209, 213, 221, 227, 248, 252, + 264, 268, 273, 277, 282, 289, 292, 295, 298, 303, + 306 +}; +#endif + +#if YYDEBUG || YYERROR_VERBOSE +/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ +static const char *const yytname[] = +{ + "$end", "error", "$undefined", "tDAY", "tDAYZONE", "tMERIDIAN", "tMONTH", + "tMONTH_UNIT", "tSEC_UNIT", "tSNUMBER", "tUNUMBER", "tZONE", "':'", + "'/'", "','", "$accept", "spec", "item", "time", "zone", "numzone", + "date", "rel", "o_merid", 0 +}; +#endif + +# ifdef YYPRINT +/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to + token YYLEX-NUM. */ +static const unsigned short yytoknum[] = +{ + 0, 256, 257, 258, 259, 260, 261, 262, 263, 264, + 265, 266, 58, 47, 44 +}; +# endif + +/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const unsigned char yyr1[] = +{ + 0, 15, 16, 16, 17, 17, 17, 17, 18, 18, + 18, 18, 18, 19, 19, 19, 19, 20, 21, 21, + 21, 21, 21, 21, 21, 22, 22, 22, 22, 23, + 23 +}; + +/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ +static const unsigned char yyr2[] = +{ + 0, 2, 0, 2, 1, 2, 1, 1, 2, 4, + 4, 6, 6, 1, 1, 2, 1, 1, 3, 5, + 2, 4, 2, 3, 5, 2, 2, 2, 2, 0, + 1 +}; + +/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state + STATE-NUM when YYTABLE doesn't specify something else to do. Zero + means the default is an error. */ +static const unsigned char yydefact[] = +{ + 2, 0, 1, 0, 0, 0, 29, 3, 4, 6, + 7, 0, 20, 27, 25, 30, 22, 28, 26, 0, + 0, 8, 14, 17, 13, 5, 16, 0, 0, 23, + 29, 18, 15, 0, 21, 0, 10, 9, 0, 24, + 29, 19, 12, 11 +}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yysigned_char yydefgoto[] = +{ + -1, 1, 7, 8, 25, 26, 9, 10, 21 +}; + +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +#define YYPACT_NINF -29 +static const yysigned_char yypact[] = +{ + -29, 1, -29, -11, 11, 20, 12, -29, 4, -29, + -29, 13, 16, -29, -29, -29, 21, -29, -29, 22, + 23, -29, -29, -29, 5, -29, -29, 28, 25, -29, + 17, 24, -29, 26, -29, 29, -29, -29, 30, -29, + 0, -29, -29, -29 +}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yysigned_char yypgoto[] = +{ + -29, -29, -29, -29, -29, -24, -29, -29, -28 +}; + +/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule which + number is the opposite. If zero, do what YYDEFACT says. + If YYTABLE_NINF, syntax error. */ +#define YYTABLE_NINF -1 +static const unsigned char yytable[] = +{ + 32, 2, 37, 11, 3, 15, 36, 4, 22, 23, + 5, 6, 43, 23, 23, 24, 42, 15, 16, 17, + 18, 12, 15, 27, 19, 20, 23, 13, 14, 35, + 28, 29, 30, 31, 33, 34, 39, 38, 0, 40, + 41 +}; + +static const yysigned_char yycheck[] = +{ + 24, 0, 30, 14, 3, 5, 30, 6, 4, 9, + 9, 10, 40, 9, 9, 11, 40, 5, 6, 7, + 8, 10, 5, 10, 12, 13, 9, 7, 8, 12, + 14, 10, 10, 10, 6, 10, 10, 13, -1, 10, + 10 +}; + +/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing + symbol of state STATE-NUM. */ +static const unsigned char yystos[] = +{ + 0, 16, 0, 3, 6, 9, 10, 17, 18, 21, + 22, 14, 10, 7, 8, 5, 6, 7, 8, 12, + 13, 23, 4, 9, 11, 19, 20, 10, 14, 10, + 10, 10, 20, 6, 10, 12, 20, 23, 13, 10, + 10, 10, 20, 23 +}; + +#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) +# define YYSIZE_T __SIZE_TYPE__ +#endif +#if ! defined (YYSIZE_T) && defined (size_t) +# define YYSIZE_T size_t +#endif +#if ! defined (YYSIZE_T) +# if defined (__STDC__) || defined (__cplusplus) +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# endif +#endif +#if ! defined (YYSIZE_T) +# define YYSIZE_T unsigned int +#endif + +#define yyerrok (yyerrstatus = 0) +#define yyclearin (yychar = YYEMPTY) +#define YYEMPTY (-2) +#define YYEOF 0 + +#define YYACCEPT goto yyacceptlab +#define YYABORT goto yyabortlab +#define YYERROR goto yyerrlab1 + + +/* Like YYERROR except do call yyerror. This remains here temporarily + to ease the transition to the new meaning of YYERROR, for GCC. + Once GCC version 2 has supplanted version 1, this can go. */ + +#define YYFAIL goto yyerrlab + +#define YYRECOVERING() (!!yyerrstatus) + +#define YYBACKUP(Token, Value) \ +do \ + if (yychar == YYEMPTY && yylen == 1) \ + { \ + yychar = (Token); \ + yylval = (Value); \ + yytoken = YYTRANSLATE (yychar); \ + YYPOPSTACK; \ + goto yybackup; \ + } \ + else \ + { \ + yyerror ("syntax error: cannot back up");\ + YYERROR; \ + } \ +while (0) + +#define YYTERROR 1 +#define YYERRCODE 256 + +/* YYLLOC_DEFAULT -- Compute the default location (before the actions + are run). */ + +#ifndef YYLLOC_DEFAULT +# define YYLLOC_DEFAULT(Current, Rhs, N) \ + Current.first_line = Rhs[1].first_line; \ + Current.first_column = Rhs[1].first_column; \ + Current.last_line = Rhs[N].last_line; \ + Current.last_column = Rhs[N].last_column; +#endif + +/* YYLEX -- calling `yylex' with the right arguments. */ + +#ifdef YYLEX_PARAM +# define YYLEX yylex (YYLEX_PARAM) +#else +# define YYLEX yylex () +#endif + +/* Enable debugging if requested. */ +#if YYDEBUG + +# ifndef YYFPRINTF +# include /* INFRINGES ON USER NAME SPACE */ +# define YYFPRINTF fprintf +# endif + +# define YYDPRINTF(Args) \ +do { \ + if (yydebug) \ + YYFPRINTF Args; \ +} while (0) + +# define YYDSYMPRINT(Args) \ +do { \ + if (yydebug) \ + yysymprint Args; \ +} while (0) + +# define YYDSYMPRINTF(Title, Token, Value, Location) \ +do { \ + if (yydebug) \ + { \ + YYFPRINTF (stderr, "%s ", Title); \ + yysymprint (stderr, \ + Token, Value); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (0) + +/*------------------------------------------------------------------. +| yy_stack_print -- Print the state stack from its BOTTOM up to its | +| TOP (cinluded). | +`------------------------------------------------------------------*/ + +#if defined (__STDC__) || defined (__cplusplus) +static void +yy_stack_print (short *bottom, short *top) +#else +static void +yy_stack_print (bottom, top) + short *bottom; + short *top; +#endif +{ + YYFPRINTF (stderr, "Stack now"); + for (/* Nothing. */; bottom <= top; ++bottom) + YYFPRINTF (stderr, " %d", *bottom); + YYFPRINTF (stderr, "\n"); +} + +# define YY_STACK_PRINT(Bottom, Top) \ +do { \ + if (yydebug) \ + yy_stack_print ((Bottom), (Top)); \ +} while (0) + + +/*------------------------------------------------. +| Report that the YYRULE is going to be reduced. | +`------------------------------------------------*/ + +#if defined (__STDC__) || defined (__cplusplus) +static void +yy_reduce_print (int yyrule) +#else +static void +yy_reduce_print (yyrule) + int yyrule; +#endif +{ + int yyi; + unsigned int yylineno = yyrline[yyrule]; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ", + yyrule - 1, yylineno); + /* Print the symbols being reduced, and their result. */ + for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++) + YYFPRINTF (stderr, "%s ", yytname [yyrhs[yyi]]); + YYFPRINTF (stderr, "-> %s\n", yytname [yyr1[yyrule]]); +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (Rule); \ +} while (0) + +/* Nonzero means print parse trace. It is left uninitialized so that + multiple parsers can coexist. */ +int yydebug; +#else /* !YYDEBUG */ +# define YYDPRINTF(Args) +# define YYDSYMPRINT(Args) +# define YYDSYMPRINTF(Title, Token, Value, Location) +# define YY_STACK_PRINT(Bottom, Top) +# define YY_REDUCE_PRINT(Rule) +#endif /* !YYDEBUG */ + + +/* YYINITDEPTH -- initial size of the parser's stacks. */ +#ifndef YYINITDEPTH +# define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only + if the built-in stack extension method is used). + + Do not make this value too large; the results are undefined if + SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH) + evaluated with infinite-precision integer arithmetic. */ + +#if YYMAXDEPTH == 0 +# undef YYMAXDEPTH +#endif + +#ifndef YYMAXDEPTH +# define YYMAXDEPTH 10000 +#endif + + + +#if YYERROR_VERBOSE + +# ifndef yystrlen +# if defined (__GLIBC__) && defined (_STRING_H) +# define yystrlen strlen +# else +/* Return the length of YYSTR. */ +static YYSIZE_T +# if defined (__STDC__) || defined (__cplusplus) +yystrlen (const char *yystr) +# else +yystrlen (yystr) + const char *yystr; +# endif +{ + register const char *yys = yystr; + + while (*yys++ != '\0') + continue; + + return yys - yystr - 1; +} +# endif +# endif + +# ifndef yystpcpy +# if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE) +# define yystpcpy stpcpy +# else +/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in + YYDEST. */ +static char * +# if defined (__STDC__) || defined (__cplusplus) +yystpcpy (char *yydest, const char *yysrc) +# else +yystpcpy (yydest, yysrc) + char *yydest; + const char *yysrc; +# endif +{ + register char *yyd = yydest; + register const char *yys = yysrc; + + while ((*yyd++ = *yys++) != '\0') + continue; + + return yyd - 1; +} +# endif +# endif + +#endif /* !YYERROR_VERBOSE */ + + + +#if YYDEBUG +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +#if defined (__STDC__) || defined (__cplusplus) +static void +yysymprint (FILE *yyoutput, int yytype, YYSTYPE *yyvaluep) +#else +static void +yysymprint (yyoutput, yytype, yyvaluep) + FILE *yyoutput; + int yytype; + YYSTYPE *yyvaluep; +#endif +{ + /* Pacify ``unused variable'' warnings. */ + (void) yyvaluep; + + if (yytype < YYNTOKENS) + { + YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); +# ifdef YYPRINT + YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); +# endif + } + else + YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); + + switch (yytype) + { + default: + break; + } + YYFPRINTF (yyoutput, ")"); +} + +#endif /* ! YYDEBUG */ +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +#if defined (__STDC__) || defined (__cplusplus) +static void +yydestruct (int yytype, YYSTYPE *yyvaluep) +#else +static void +yydestruct (yytype, yyvaluep) + int yytype; + YYSTYPE *yyvaluep; +#endif +{ + /* Pacify ``unused variable'' warnings. */ + (void) yyvaluep; + + switch (yytype) + { + + default: + break; + } +} + + +/* Prevent warnings from -Wmissing-prototypes. */ + +#ifdef YYPARSE_PARAM +# if defined (__STDC__) || defined (__cplusplus) +int yyparse (void *YYPARSE_PARAM); +# else +int yyparse (); +# endif +#else /* ! YYPARSE_PARAM */ +#if defined (__STDC__) || defined (__cplusplus) +int yyparse (void); +#else +int yyparse (); +#endif +#endif /* ! YYPARSE_PARAM */ + + + +/* The lookahead symbol. */ +int yychar; + +/* The semantic value of the lookahead symbol. */ +YYSTYPE yylval; + +/* Number of syntax errors so far. */ +int yynerrs; + + + +/*----------. +| yyparse. | +`----------*/ + +#ifdef YYPARSE_PARAM +# if defined (__STDC__) || defined (__cplusplus) +int yyparse (void *YYPARSE_PARAM) +# else +int yyparse (YYPARSE_PARAM) + void *YYPARSE_PARAM; +# endif +#else /* ! YYPARSE_PARAM */ +#if defined (__STDC__) || defined (__cplusplus) +int +yyparse (void) +#else +int +yyparse () + +#endif +#endif +{ + + register int yystate; + register int yyn; + int yyresult; + /* Number of tokens to shift before error messages enabled. */ + int yyerrstatus; + /* Lookahead token as an internal (translated) token number. */ + int yytoken = 0; + + /* Three stacks and their tools: + `yyss': related to states, + `yyvs': related to semantic values, + `yyls': related to locations. + + Refer to the stacks thru separate pointers, to allow yyoverflow + to reallocate them elsewhere. */ + + /* The state stack. */ + short yyssa[YYINITDEPTH]; + short *yyss = yyssa; + register short *yyssp; + + /* The semantic value stack. */ + YYSTYPE yyvsa[YYINITDEPTH]; + YYSTYPE *yyvs = yyvsa; + register YYSTYPE *yyvsp; + + + +#define YYPOPSTACK (yyvsp--, yyssp--) + + YYSIZE_T yystacksize = YYINITDEPTH; + + /* The variables used to return semantic value and location from the + action routines. */ + YYSTYPE yyval; + + + /* When reducing, the number of symbols on the RHS of the reduced + rule. */ + int yylen; + + YYDPRINTF ((stderr, "Starting parse\n")); + + yystate = 0; + yyerrstatus = 0; + yynerrs = 0; + yychar = YYEMPTY; /* Cause a token to be read. */ + + /* Initialize stack pointers. + Waste one element of value and location stack + so that they stay on the same level as the state stack. + The wasted elements are never initialized. */ + + yyssp = yyss; + yyvsp = yyvs; + + goto yysetstate; + +/*------------------------------------------------------------. +| yynewstate -- Push a new state, which is found in yystate. | +`------------------------------------------------------------*/ + yynewstate: + /* In all cases, when you get here, the value and location stacks + have just been pushed. so pushing a state here evens the stacks. + */ + yyssp++; + + yysetstate: + *yyssp = yystate; + + if (yyss + yystacksize - 1 <= yyssp) + { + /* Get the current used size of the three stacks, in elements. */ + YYSIZE_T yysize = yyssp - yyss + 1; + +#ifdef yyoverflow + { + /* Give user a chance to reallocate the stack. Use copies of + these so that the &'s don't force the real ones into + memory. */ + YYSTYPE *yyvs1 = yyvs; + short *yyss1 = yyss; + + + /* Each stack pointer address is followed by the size of the + data in use in that stack, in bytes. This used to be a + conditional around just the two extra args, but that might + be undefined if yyoverflow is a macro. */ + yyoverflow ("parser stack overflow", + &yyss1, yysize * sizeof (*yyssp), + &yyvs1, yysize * sizeof (*yyvsp), + + &yystacksize); + + yyss = yyss1; + yyvs = yyvs1; + } +#else /* no yyoverflow */ +# ifndef YYSTACK_RELOCATE + goto yyoverflowlab; +# else + /* Extend the stack our own way. */ + if (YYMAXDEPTH <= yystacksize) + goto yyoverflowlab; + yystacksize *= 2; + if (YYMAXDEPTH < yystacksize) + yystacksize = YYMAXDEPTH; + + { + short *yyss1 = yyss; + union yyalloc *yyptr = + (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); + if (! yyptr) + goto yyoverflowlab; + YYSTACK_RELOCATE (yyss); + YYSTACK_RELOCATE (yyvs); + +# undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE (yyss1); + } +# endif +#endif /* no yyoverflow */ + + yyssp = yyss + yysize - 1; + yyvsp = yyvs + yysize - 1; + + + YYDPRINTF ((stderr, "Stack size increased to %lu\n", + (unsigned long int) yystacksize)); + + if (yyss + yystacksize - 1 <= yyssp) + YYABORT; + } + + YYDPRINTF ((stderr, "Entering state %d\n", yystate)); + + goto yybackup; + +/*-----------. +| yybackup. | +`-----------*/ +yybackup: + +/* Do appropriate processing given the current state. */ +/* Read a lookahead token if we need one and don't already have one. */ +/* yyresume: */ + + /* First try to decide what to do without reference to lookahead token. */ + + yyn = yypact[yystate]; + if (yyn == YYPACT_NINF) + goto yydefault; + + /* Not known => get a lookahead token if don't already have one. */ + + /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ + if (yychar == YYEMPTY) + { + YYDPRINTF ((stderr, "Reading a token: ")); + yychar = YYLEX; + } + + if (yychar <= YYEOF) + { + yychar = yytoken = YYEOF; + YYDPRINTF ((stderr, "Now at end of input.\n")); + } + else + { + yytoken = YYTRANSLATE (yychar); + YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc); + } + + /* If the proper action on seeing token YYTOKEN is to reduce or to + detect an error, take that action. */ + yyn += yytoken; + if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) + goto yydefault; + yyn = yytable[yyn]; + if (yyn <= 0) + { + if (yyn == 0 || yyn == YYTABLE_NINF) + goto yyerrlab; + yyn = -yyn; + goto yyreduce; + } + + if (yyn == YYFINAL) + YYACCEPT; + + /* Shift the lookahead token. */ + YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken])); + + /* Discard the token being shifted unless it is eof. */ + if (yychar != YYEOF) + yychar = YYEMPTY; + + *++yyvsp = yylval; + + + /* Count tokens shifted since error; after three, turn off error + status. */ + if (yyerrstatus) + yyerrstatus--; + + yystate = yyn; + goto yynewstate; + + +/*-----------------------------------------------------------. +| yydefault -- do the default action for the current state. | +`-----------------------------------------------------------*/ +yydefault: + yyn = yydefact[yystate]; + if (yyn == 0) + goto yyerrlab; + goto yyreduce; + + +/*-----------------------------. +| yyreduce -- Do a reduction. | +`-----------------------------*/ +yyreduce: + /* yyn is the number of a rule to reduce with. */ + yylen = yyr2[yyn]; + + /* If YYLEN is nonzero, implement the default value of the action: + `$$ = $1'. + + Otherwise, the following line sets YYVAL to garbage. + This behavior is undocumented and Bison + users should not rely upon it. Assigning to YYVAL + unconditionally makes the parser a bit smaller, and it avoids a + GCC warning that YYVAL may be used uninitialized. */ + yyval = yyvsp[1-yylen]; + + + YY_REDUCE_PRINT (yyn); + switch (yyn) + { + case 4: +#line 143 "parsedate.y" + { + yyHaveTime++; +#ifdef lint + /* I am compulsive about lint natterings... */ + if (yyHaveTime == -1) { + YYERROR; + } +#endif /* lint */ + } + break; + + case 5: +#line 152 "parsedate.y" + { + yyHaveTime++; + yyTimezone = yyvsp[0].Number; + } + break; + + case 6: +#line 156 "parsedate.y" + { + yyHaveDate++; + } + break; + + case 7: +#line 159 "parsedate.y" + { + yyHaveRel = 1; + } + break; + + case 8: +#line 164 "parsedate.y" + { + if (yyvsp[-1].Number < 100) { + yyHour = yyvsp[-1].Number; + yyMinutes = 0; + } + else { + yyHour = yyvsp[-1].Number / 100; + yyMinutes = yyvsp[-1].Number % 100; + } + yySeconds = 0; + yyMeridian = yyvsp[0].Meridian; + } + break; + + case 9: +#line 176 "parsedate.y" + { + yyHour = yyvsp[-3].Number; + yyMinutes = yyvsp[-1].Number; + yySeconds = 0; + yyMeridian = yyvsp[0].Meridian; + } + break; + + case 10: +#line 182 "parsedate.y" + { + yyHour = yyvsp[-3].Number; + yyMinutes = yyvsp[-1].Number; + yyTimezone = yyvsp[0].Number; + yyMeridian = MER24; + yyDSTmode = DSToff; + } + break; + + case 11: +#line 189 "parsedate.y" + { + yyHour = yyvsp[-5].Number; + yyMinutes = yyvsp[-3].Number; + yySeconds = yyvsp[-1].Number; + yyMeridian = yyvsp[0].Meridian; + } + break; + + case 12: +#line 195 "parsedate.y" + { + yyHour = yyvsp[-5].Number; + yyMinutes = yyvsp[-3].Number; + yySeconds = yyvsp[-1].Number; + yyTimezone = yyvsp[0].Number; + yyMeridian = MER24; + yyDSTmode = DSToff; + } + break; + + case 13: +#line 205 "parsedate.y" + { + yyval.Number = yyvsp[0].Number; + yyDSTmode = DSToff; + } + break; + + case 14: +#line 209 "parsedate.y" + { + yyval.Number = yyvsp[0].Number; + yyDSTmode = DSTon; + } + break; + + case 15: +#line 213 "parsedate.y" + { + /* Only allow "GMT+300" and "GMT-0800" */ + if (yyvsp[-1].Number != 0) { + YYABORT; + } + yyval.Number = yyvsp[0].Number; + yyDSTmode = DSToff; + } + break; + + case 16: +#line 221 "parsedate.y" + { + yyval.Number = yyvsp[0].Number; + yyDSTmode = DSToff; + } + break; + + case 17: +#line 227 "parsedate.y" + { + int i; + + /* Unix and GMT and numeric timezones -- a little confusing. */ + if (yyvsp[0].Number < 0) { + /* Don't work with negative modulus. */ + yyvsp[0].Number = -yyvsp[0].Number; + if (yyvsp[0].Number > 9999 || (i = yyvsp[0].Number % 100) >= 60) { + YYABORT; + } + yyval.Number = (yyvsp[0].Number / 100) * 60 + i; + } + else { + if (yyvsp[0].Number > 9999 || (i = yyvsp[0].Number % 100) >= 60) { + YYABORT; + } + yyval.Number = -((yyvsp[0].Number / 100) * 60 + i); + } + } + break; + + case 18: +#line 248 "parsedate.y" + { + yyMonth = yyvsp[-2].Number; + yyDay = yyvsp[0].Number; + } + break; + + case 19: +#line 252 "parsedate.y" + { + if (yyvsp[-4].Number > 100) { + yyYear = yyvsp[-4].Number; + yyMonth = yyvsp[-2].Number; + yyDay = yyvsp[0].Number; + } + else { + yyMonth = yyvsp[-4].Number; + yyDay = yyvsp[-2].Number; + yyYear = yyvsp[0].Number; + } + } + break; + + case 20: +#line 264 "parsedate.y" + { + yyMonth = yyvsp[-1].Number; + yyDay = yyvsp[0].Number; + } + break; + + case 21: +#line 268 "parsedate.y" + { + yyMonth = yyvsp[-3].Number; + yyDay = yyvsp[-2].Number; + yyYear = yyvsp[0].Number; + } + break; + + case 22: +#line 273 "parsedate.y" + { + yyDay = yyvsp[-1].Number; + yyMonth = yyvsp[0].Number; + } + break; + + case 23: +#line 277 "parsedate.y" + { + yyDay = yyvsp[-2].Number; + yyMonth = yyvsp[-1].Number; + yyYear = yyvsp[0].Number; + } + break; + + case 24: +#line 282 "parsedate.y" + { + yyDay = yyvsp[-2].Number; + yyMonth = yyvsp[-1].Number; + yyYear = yyvsp[0].Number; + } + break; + + case 25: +#line 289 "parsedate.y" + { + yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number; + } + break; + + case 26: +#line 292 "parsedate.y" + { + yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number; + } + break; + + case 27: +#line 295 "parsedate.y" + { + yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number; + } + break; + + case 28: +#line 298 "parsedate.y" + { + yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number; + } + break; + + case 29: +#line 303 "parsedate.y" + { + yyval.Meridian = MER24; + } + break; + + case 30: +#line 306 "parsedate.y" + { + yyval.Meridian = yyvsp[0].Meridian; + } + break; + + + } + +/* Line 999 of yacc.c. */ +#line 1406 "y.tab.c" + + yyvsp -= yylen; + yyssp -= yylen; + + + YY_STACK_PRINT (yyss, yyssp); + + *++yyvsp = yyval; + + + /* Now `shift' the result of the reduction. Determine what state + that goes to, based on the state we popped back to and the rule + number reduced by. */ + + yyn = yyr1[yyn]; + + yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; + if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) + yystate = yytable[yystate]; + else + yystate = yydefgoto[yyn - YYNTOKENS]; + + goto yynewstate; + + +/*------------------------------------. +| yyerrlab -- here on detecting error | +`------------------------------------*/ +yyerrlab: + /* If not already recovering from an error, report this error. */ + if (!yyerrstatus) + { + ++yynerrs; +#if YYERROR_VERBOSE + yyn = yypact[yystate]; + + if (YYPACT_NINF < yyn && yyn < YYLAST) + { + YYSIZE_T yysize = 0; + int yytype = YYTRANSLATE (yychar); + char *yymsg; + int yyx, yycount; + + yycount = 0; + /* Start YYX at -YYN if negative to avoid negative indexes in + YYCHECK. */ + for (yyx = yyn < 0 ? -yyn : 0; + yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) + yysize += yystrlen (yytname[yyx]) + 15, yycount++; + yysize += yystrlen ("syntax error, unexpected ") + 1; + yysize += yystrlen (yytname[yytype]); + yymsg = (char *) YYSTACK_ALLOC (yysize); + if (yymsg != 0) + { + char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); + yyp = yystpcpy (yyp, yytname[yytype]); + + if (yycount < 5) + { + yycount = 0; + for (yyx = yyn < 0 ? -yyn : 0; + yyx < (int) (sizeof (yytname) / sizeof (char *)); + yyx++) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) + { + const char *yyq = ! yycount ? ", expecting " : " or "; + yyp = yystpcpy (yyp, yyq); + yyp = yystpcpy (yyp, yytname[yyx]); + yycount++; + } + } + yyerror (yymsg); + YYSTACK_FREE (yymsg); + } + else + yyerror ("syntax error; also virtual memory exhausted"); + } + else +#endif /* YYERROR_VERBOSE */ + yyerror ("syntax error"); + } + + + + if (yyerrstatus == 3) + { + /* If just tried and failed to reuse lookahead token after an + error, discard it. */ + + /* Return failure if at end of input. */ + if (yychar == YYEOF) + { + /* Pop the error token. */ + YYPOPSTACK; + /* Pop the rest of the stack. */ + while (yyss < yyssp) + { + YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp); + yydestruct (yystos[*yyssp], yyvsp); + YYPOPSTACK; + } + YYABORT; + } + + YYDSYMPRINTF ("Error: discarding", yytoken, &yylval, &yylloc); + yydestruct (yytoken, &yylval); + yychar = YYEMPTY; + + } + + /* Else will try to reuse lookahead token after shifting the error + token. */ + goto yyerrlab1; + + +/*----------------------------------------------------. +| yyerrlab1 -- error raised explicitly by an action. | +`----------------------------------------------------*/ +yyerrlab1: + yyerrstatus = 3; /* Each real token shifted decrements this. */ + + for (;;) + { + yyn = yypact[yystate]; + if (yyn != YYPACT_NINF) + { + yyn += YYTERROR; + if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) + { + yyn = yytable[yyn]; + if (0 < yyn) + break; + } + } + + /* Pop the current state because it cannot handle the error token. */ + if (yyssp == yyss) + YYABORT; + + YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp); + yydestruct (yystos[yystate], yyvsp); + yyvsp--; + yystate = *--yyssp; + + YY_STACK_PRINT (yyss, yyssp); + } + + if (yyn == YYFINAL) + YYACCEPT; + + YYDPRINTF ((stderr, "Shifting error token, ")); + + *++yyvsp = yylval; + + + yystate = yyn; + goto yynewstate; + + +/*-------------------------------------. +| yyacceptlab -- YYACCEPT comes here. | +`-------------------------------------*/ +yyacceptlab: + yyresult = 0; + goto yyreturn; + +/*-----------------------------------. +| yyabortlab -- YYABORT comes here. | +`-----------------------------------*/ +yyabortlab: + yyresult = 1; + goto yyreturn; + +#ifndef yyoverflow +/*----------------------------------------------. +| yyoverflowlab -- parser overflow comes here. | +`----------------------------------------------*/ +yyoverflowlab: + yyerror ("parser stack overflow"); + yyresult = 2; + /* Fall through. */ +#endif + +yyreturn: +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); +#endif + return yyresult; +} + + +#line 311 "parsedate.y" + + +/* Month and day table. */ +static TABLE MonthDayTable[] = { + { "january", tMONTH, 1 }, + { "february", tMONTH, 2 }, + { "march", tMONTH, 3 }, + { "april", tMONTH, 4 }, + { "may", tMONTH, 5 }, + { "june", tMONTH, 6 }, + { "july", tMONTH, 7 }, + { "august", tMONTH, 8 }, + { "september", tMONTH, 9 }, + { "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 TABLE UnitsTable[] = { + { "year", tMONTH_UNIT, 12 }, + { "month", tMONTH_UNIT, 1 }, + { "week", tSEC_UNIT, 7L * 24 * 60 * 60 }, + { "day", tSEC_UNIT, 1L * 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 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 */ + { "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 */ +}; + + +/* ARGSUSED */ +static void +date_error(char *s) +{ + /* NOTREACHED */ +} + + +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 int DaysNormal[13] = { + 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 + }; + static int DaysLeap[13] = { + 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 + }; + static int LeapYears[] = { + 1972, 1976, 1980, 1984, 1988, 1992, 1996, + 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036 + }; + register int *yp; + register int *mp; + register time_t Julian; + register int i; + time_t tod; + + if (Year < 0) + Year = -Year; + 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 * 60L * 60L; + 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 * 60L * 60L; +} + + +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; + 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, register int length) +{ + register char *p; + register char *q; + register TABLE *tp; + register 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; + } + + /* 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 = (char*)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; +} + + +int +date_lex(void) +{ + register char c; + register char *p; + char buff[20]; + register int sign; + register int i; + register int nesting; + + for ( ; ; ) { + /* Get first character after the whitespace. */ + for ( ; ; ) { + while (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 (isdigit(c) || c == '-' || c == '+') { + if (c == '-' || c == '+') { + sign = c == '-' ? -1 : 1; + yyInput++; + if (!isdigit(*yyInput)) + /* Skip the plus or minus sign. */ + continue; + } + else + sign = 0; + for (i = 0; (c = *yyInput++) != '\0' && isdigit(c); ) + i = 10 * i + c - '0'; + yyInput--; + yylval.Number = sign < 0 ? -i : i; + return sign ? tSNUMBER : tUNUMBER; + } + + /* A word? */ + if (isalpha(c)) { + for (p = buff; (c = *yyInput++) == '.' || isalpha(c); ) + if (p < &buff[sizeof buff - 1]) + *p++ = isupper(c) ? tolower(c) : c; + *p = '\0'; + yyInput--; + return LookupWord(buff, p - buff); + } + + return *yyInput++; + } +} + + +time_t +parsedate(char *p) +{ + extern int date_parse(void); + time_t Start; + + yyInput = p; + + yyYear = 0; + yyMonth = 0; + yyDay = 0; + yyTimezone = 0; + 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 + return -1; + + 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; +} + + +#ifdef TEST + +#if YYDEBUG +extern int yydebug; +#endif /* YYDEBUG */ + +/* ARGSUSED */ +int +main(int ac, char *av[]) +{ + char buff[128]; + time_t d; + +#if YYDEBUG + yydebug = 1; +#endif /* YYDEBUG */ + + (void)printf("Enter date, or blank line to exit.\n\t> "); + for ( ; ; ) { + (void)printf("\t> "); + (void)fflush(stdout); + if (fgets(buff, sizeof buff, stdin) == NULL || buff[0] == '\n') + break; +#if YYDEBUG + if (strcmp(buff, "yydebug") == 0) { + yydebug = !yydebug; + printf("yydebug = %s\n", yydebug ? "on" : "off"); + continue; + } +#endif /* YYDEBUG */ + d = parsedate(buff, (TIMEINFO *)NULL); + if (d == -1) + (void)printf("Bad format - couldn't convert.\n"); + else + (void)printf("%s", ctime(&d)); + } + + exit(0); + /* NOTREACHED */ +} +#endif /* TEST */ + +