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-rw-r--r--src/parsdate.c1554
1 files changed, 1554 insertions, 0 deletions
diff --git a/src/parsdate.c b/src/parsdate.c
new file mode 100644
index 0000000..9ac5d77
--- /dev/null
+++ b/src/parsdate.c
@@ -0,0 +1,1554 @@
+/* original parser id follows */
+/* yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93" */
+/* (use YYMAJOR/YYMINOR for ifdefs dependent on parser version) */
+
+#define YYBYACC 1
+#define YYMAJOR 1
+#define YYMINOR 9
+#define YYPATCH 20170709
+
+#define YYEMPTY (-1)
+#define yyclearin (yychar = YYEMPTY)
+#define yyerrok (yyerrflag = 0)
+#define YYRECOVERING() (yyerrflag != 0)
+#define YYENOMEM (-2)
+#define YYEOF 0
+#define YYPREFIX "yy"
+
+#define YYPURE 0
+
+#line 2 "./parsdate.y"
+
+#include <LYLeaks.h>
+
+/*
+ * $LynxId: parsdate.c,v 1.18 2018/04/01 22:22:06 tom Exp $
+ *
+ * This module is adapted and extended from tin, to use for LYmktime().
+ *
+ * Project : tin - a Usenet reader
+ * Module : parsedate.y
+ * Author : S. Bellovin, R. $alz, J. Berets, P. Eggert
+ * Created : 1990-08-01
+ * Updated : 2008-06-30 (by Thomas Dickey, for Lynx)
+ * Notes : This grammar has 8 shift/reduce conflicts.
+ *
+ * Originally written by Steven M. Bellovin <smb@research.att.com>
+ * while at the University of North Carolina at Chapel Hill.
+ * Later tweaked by a couple of people on Usenet. Completely
+ * overhauled by Rich $alz <rsalz@osf.org> and Jim Berets
+ * <jberets@bbn.com> in August, 1990.
+ *
+ * Further revised (removed obsolete constructs and cleaned up
+ * timezone names) in August, 1991, by Rich.
+ * Paul Eggert <eggert@twinsun.com> helped in September 1992.
+ * Roland Rosenfeld added MET DST code in April 1994.
+ *
+ * Revision : 1.13
+ * Copyright : This code is in the public domain and has no copyright.
+ */
+
+/* SUPPRESS 530 */ /* Empty body for statement */
+/* SUPPRESS 593 on yyerrlab */ /* Label was not used */
+/* SUPPRESS 593 on yynewstate */ /* Label was not used */
+/* SUPPRESS 595 on yypvt */ /* Automatic variable may be used before set */
+
+#undef alloca /* conflicting def may be set by yacc */
+#include <parsdate.h>
+
+/*
+** Get the number of elements in a fixed-size array, or a pointer just
+** past the end of it.
+*/
+#define ENDOF(array) (&array[ARRAY_SIZE(array)])
+
+#ifdef EBCDIC
+#define TO_ASCII(c) TOASCII(c)
+#define TO_LOCAL(c) FROMASCII(c)
+#else
+#define TO_ASCII(c) (c)
+#define TO_LOCAL(c) (c)
+#endif
+
+#define IS7BIT(x) ((unsigned) TO_ASCII(x) < 128)
+#define CTYPE(isXXXXX, c) (IS7BIT(c) && isXXXXX(((unsigned char)c)))
+
+typedef char *PD_STRING;
+
+extern int date_parse(void);
+
+#define yyparse date_parse
+#define yylex date_lex
+#define yyerror date_error
+
+ /* See the LeapYears table in Convert. */
+#define EPOCH 1970
+#define END_OF_TIME 2038
+
+ /* Constants for general time calculations. */
+#define DST_OFFSET 1
+#define SECSPERDAY (24L * 60L * 60L)
+ /* Readability for TABLE stuff. */
+#define HOUR(x) (x * 60)
+
+#define LPAREN '('
+#define RPAREN ')'
+
+/*
+** Daylight-savings mode: on, off, or not yet known.
+*/
+typedef enum _DSTMODE {
+ DSTon, DSToff, DSTmaybe
+} DSTMODE;
+
+/*
+** Meridian: am, pm, or 24-hour style.
+*/
+typedef enum _MERIDIAN {
+ MERam, MERpm, MER24
+} MERIDIAN;
+
+/*
+** Global variables. We could get rid of most of them by using a yacc
+** union, but this is more efficient. (This routine predates the
+** yacc %union construct.)
+*/
+static char *yyInput;
+static DSTMODE yyDSTmode;
+static int yyHaveDate;
+static int yyHaveRel;
+static int yyHaveTime;
+static time_t yyTimezone;
+static time_t yyDay;
+static time_t yyHour;
+static time_t yyMinutes;
+static time_t yyMonth;
+static time_t yySeconds;
+static time_t yyYear;
+static MERIDIAN yyMeridian;
+static time_t yyRelMonth;
+static time_t yyRelSeconds;
+
+static time_t ToSeconds(time_t, time_t, time_t, MERIDIAN);
+static time_t Convert(time_t, time_t, time_t, time_t, time_t, time_t,
+ MERIDIAN, DSTMODE);
+static time_t DSTcorrect(time_t, time_t);
+static time_t RelativeMonth(time_t, time_t);
+static int LookupWord(char *, int);
+static int date_lex(void);
+static int GetTimeInfo(TIMEINFO * Now);
+
+/*
+ * The 'date_error()' function is declared here to work around a defect in
+ * bison 1.22, which redefines 'const' further down in this file, making it
+ * impossible to put a prototype here, and the function later. We're using
+ * 'const' on the parameter to quiet gcc's -Wwrite-strings warning.
+ */
+/*ARGSUSED*/
+static void date_error(const char GCC_UNUSED *s)
+{
+ /*NOTREACHED */
+}
+
+#ifdef YYSTYPE
+#undef YYSTYPE_IS_DECLARED
+#define YYSTYPE_IS_DECLARED 1
+#endif
+#ifndef YYSTYPE_IS_DECLARED
+#define YYSTYPE_IS_DECLARED 1
+#line 136 "./parsdate.y"
+typedef union {
+ time_t Number;
+ enum _MERIDIAN Meridian;
+} YYSTYPE;
+#endif /* !YYSTYPE_IS_DECLARED */
+#line 166 "y.tab.c"
+
+/* compatibility with bison */
+#ifdef YYPARSE_PARAM
+/* compatibility with FreeBSD */
+# ifdef YYPARSE_PARAM_TYPE
+# define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM)
+# else
+# define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM)
+# endif
+#else
+# define YYPARSE_DECL() yyparse(void)
+#endif
+
+/* Parameters sent to lex. */
+#ifdef YYLEX_PARAM
+# define YYLEX_DECL() yylex(void *YYLEX_PARAM)
+# define YYLEX yylex(YYLEX_PARAM)
+#else
+# define YYLEX_DECL() yylex(void)
+# define YYLEX yylex()
+#endif
+
+/* Parameters sent to yyerror. */
+#ifndef YYERROR_DECL
+#define YYERROR_DECL() yyerror(const char *s)
+#endif
+#ifndef YYERROR_CALL
+#define YYERROR_CALL(msg) yyerror(msg)
+#endif
+
+extern int YYPARSE_DECL();
+
+#define tDAY 257
+#define tDAYZONE 258
+#define tMERIDIAN 259
+#define tMONTH 260
+#define tMONTH_UNIT 261
+#define tSEC_UNIT 262
+#define tSNUMBER 263
+#define tUNUMBER 264
+#define tZONE 265
+#define tDST 266
+#define YYERRCODE 256
+typedef short YYINT;
+static const YYINT yylhs[] = { -1,
+ 0, 0, 4, 4, 4, 4, 4, 4, 5, 5,
+ 5, 5, 5, 2, 2, 2, 2, 2, 1, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 7, 8,
+ 8, 8, 8, 3, 3,
+};
+static const YYINT yylen[] = { 2,
+ 0, 2, 1, 2, 1, 1, 2, 1, 2, 4,
+ 4, 6, 6, 1, 1, 2, 2, 1, 1, 3,
+ 5, 2, 4, 2, 3, 5, 6, 3, 9, 2,
+ 2, 2, 2, 0, 1,
+};
+static const YYINT yydefred[] = { 1,
+ 0, 0, 0, 0, 0, 2, 0, 5, 0, 8,
+ 0, 0, 0, 32, 30, 35, 0, 33, 31, 0,
+ 0, 0, 9, 0, 19, 0, 18, 4, 7, 0,
+ 0, 0, 25, 28, 0, 0, 16, 17, 0, 0,
+ 0, 23, 0, 11, 10, 0, 0, 26, 0, 0,
+ 21, 0, 27, 13, 12, 0, 0, 29,
+};
+static const YYINT yydgoto[] = { 1,
+ 27, 28, 23, 6, 7, 8, 9, 10,
+};
+static const YYINT yysindex[] = { 0,
+ -240, -41, -256, -227, -45, 0, -251, 0, -251, 0,
+ -254, -249, -22, 0, 0, 0, -237, 0, 0, -235,
+ -228, -226, 0, -236, 0, -224, 0, 0, 0, -223,
+ -39, -222, 0, 0, -58, -7, 0, 0, -15, -220,
+ -215, 0, -218, 0, 0, -217, -216, 0, -214, -234,
+ 0, -8, 0, 0, 0, -213, -212, 0,
+};
+static const YYINT yyrindex[] = { 0,
+ 0, 0, 0, 0, 5, 0, 26, 0, 31, 0,
+ 0, 0, 11, 0, 0, 0, 37, 0, 0, 0,
+ 0, 0, 0, 16, 0, 32, 0, 0, 0, 0,
+ 0, 0, 0, 0, 1, 21, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+};
+static const YYINT yygindex[] = { 0,
+ -17, 44, -31, 0, 0, 0, 0, 0,
+};
+#define YYTABLESIZE 300
+static const YYINT yytable[] = { 43,
+ 34, 22, 12, 45, 34, 41, 24, 13, 38, 30,
+ 22, 25, 21, 26, 31, 15, 2, 44, 55, 3,
+ 20, 32, 4, 5, 16, 3, 33, 34, 25, 37,
+ 6, 14, 54, 14, 15, 35, 24, 36, 25, 46,
+ 39, 42, 47, 48, 49, 50, 51, 52, 53, 56,
+ 57, 58, 29, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 16, 0, 0, 0, 25, 0, 0, 0, 0, 0,
+ 0, 0, 0, 16, 17, 18, 19, 20, 11, 0,
+ 40, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 34, 34, 0,
+ 34, 34, 34, 0, 34, 34, 0, 22, 34, 34,
+ 22, 0, 15, 22, 22, 15, 0, 20, 15, 15,
+ 20, 0, 3, 20, 20, 3, 0, 6, 14, 3,
+ 6, 14, 0, 24, 6, 14, 24, 0, 0, 24,
+};
+static const YYINT yycheck[] = { 58,
+ 0, 47, 44, 35, 0, 45, 258, 264, 26, 264,
+ 0, 263, 58, 265, 264, 0, 257, 35, 50, 260,
+ 0, 44, 263, 264, 259, 0, 264, 263, 263, 266,
+ 0, 0, 50, 261, 262, 264, 0, 264, 263, 47,
+ 264, 264, 58, 264, 260, 264, 264, 264, 263, 58,
+ 264, 264, 9, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ 259, -1, -1, -1, 263, -1, -1, -1, -1, -1,
+ -1, -1, -1, 259, 260, 261, 262, 263, 260, -1,
+ 260, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, 257, 258, -1,
+ 260, 257, 258, -1, 264, 265, -1, 257, 264, 265,
+ 260, -1, 257, 263, 264, 260, -1, 257, 263, 264,
+ 260, -1, 257, 263, 264, 260, -1, 257, 257, 264,
+ 260, 260, -1, 257, 264, 264, 260, -1, -1, 263,
+};
+#define YYFINAL 1
+#ifndef YYDEBUG
+#define YYDEBUG 0
+#endif
+#define YYMAXTOKEN 266
+#define YYUNDFTOKEN 277
+#define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a))
+#if YYDEBUG
+static const char *const yyname[] = {
+
+"end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,"','","'-'",0,"'/'",0,0,0,0,0,0,0,0,0,0,"':'",0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"tDAY","tDAYZONE",
+"tMERIDIAN","tMONTH","tMONTH_UNIT","tSEC_UNIT","tSNUMBER","tUNUMBER","tZONE",
+"tDST",0,0,0,0,0,0,0,0,0,0,"illegal-symbol",
+};
+static const char *const yyrule[] = {
+"$accept : spec",
+"spec :",
+"spec : spec item",
+"item : time",
+"item : time zone",
+"item : date",
+"item : both",
+"item : both zone",
+"item : rel",
+"time : tUNUMBER o_merid",
+"time : tUNUMBER ':' tUNUMBER o_merid",
+"time : tUNUMBER ':' tUNUMBER numzone",
+"time : tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid",
+"time : tUNUMBER ':' tUNUMBER ':' tUNUMBER numzone",
+"zone : tZONE",
+"zone : tDAYZONE",
+"zone : tDAYZONE tDST",
+"zone : tZONE numzone",
+"zone : numzone",
+"numzone : tSNUMBER",
+"date : tUNUMBER '/' tUNUMBER",
+"date : tUNUMBER '/' tUNUMBER '/' tUNUMBER",
+"date : tMONTH tUNUMBER",
+"date : tMONTH tUNUMBER ',' tUNUMBER",
+"date : tUNUMBER tMONTH",
+"date : tUNUMBER tMONTH tUNUMBER",
+"date : tDAY ',' tUNUMBER tMONTH tUNUMBER",
+"date : tDAY ',' tUNUMBER '-' tMONTH tSNUMBER",
+"date : tUNUMBER tSNUMBER tSNUMBER",
+"both : tDAY tMONTH tUNUMBER tUNUMBER ':' tUNUMBER ':' tUNUMBER tUNUMBER",
+"rel : tSNUMBER tSEC_UNIT",
+"rel : tUNUMBER tSEC_UNIT",
+"rel : tSNUMBER tMONTH_UNIT",
+"rel : tUNUMBER tMONTH_UNIT",
+"o_merid :",
+"o_merid : tMERIDIAN",
+
+};
+#endif
+
+int yydebug;
+int yynerrs;
+
+int yyerrflag;
+int yychar;
+YYSTYPE yyval;
+YYSTYPE yylval;
+
+/* define the initial stack-sizes */
+#ifdef YYSTACKSIZE
+#undef YYMAXDEPTH
+#define YYMAXDEPTH YYSTACKSIZE
+#else
+#ifdef YYMAXDEPTH
+#define YYSTACKSIZE YYMAXDEPTH
+#else
+#define YYSTACKSIZE 10000
+#define YYMAXDEPTH 10000
+#endif
+#endif
+
+#define YYINITSTACKSIZE 200
+
+typedef struct {
+ unsigned stacksize;
+ YYINT *s_base;
+ YYINT *s_mark;
+ YYINT *s_last;
+ YYSTYPE *l_base;
+ YYSTYPE *l_mark;
+} YYSTACKDATA;
+/* variables for the parser stack */
+static YYSTACKDATA yystack;
+#line 358 "./parsdate.y"
+
+
+/*
+** An entry in the lexical lookup table.
+*/
+/* *INDENT-OFF* */
+typedef struct _TABLE {
+ const char *name;
+ int type;
+ time_t value;
+} TABLE;
+
+/* Month and day table. */
+static const TABLE MonthDayTable[] = {
+ { "january", tMONTH, 1 },
+ { "february", tMONTH, 2 },
+ { "march", tMONTH, 3 },
+ { "april", tMONTH, 4 },
+ { "may", tMONTH, 5 },
+ { "june", tMONTH, 6 },
+ { "july", tMONTH, 7 },
+ { "august", tMONTH, 8 },
+ { "september", tMONTH, 9 },
+ { "october", tMONTH, 10 },
+ { "november", tMONTH, 11 },
+ { "december", tMONTH, 12 },
+ /* The value of the day isn't used... */
+ { "sunday", tDAY, 0 },
+ { "monday", tDAY, 0 },
+ { "tuesday", tDAY, 0 },
+ { "wednesday", tDAY, 0 },
+ { "thursday", tDAY, 0 },
+ { "friday", tDAY, 0 },
+ { "saturday", tDAY, 0 },
+};
+
+/* Time units table. */
+static const TABLE UnitsTable[] = {
+ { "year", tMONTH_UNIT, 12 },
+ { "month", tMONTH_UNIT, 1 },
+ { "week", tSEC_UNIT, 7 * 24 * 60 * 60 },
+ { "day", tSEC_UNIT, 1 * 24 * 60 * 60 },
+ { "hour", tSEC_UNIT, 60 * 60 },
+ { "minute", tSEC_UNIT, 60 },
+ { "min", tSEC_UNIT, 60 },
+ { "second", tSEC_UNIT, 1 },
+ { "sec", tSEC_UNIT, 1 },
+};
+
+/* Timezone table. */
+static const TABLE TimezoneTable[] = {
+ { "gmt", tZONE, HOUR( 0) }, /* Greenwich Mean */
+ { "ut", tZONE, HOUR( 0) }, /* Universal */
+ { "utc", tZONE, HOUR( 0) }, /* Universal Coordinated */
+ { "cut", tZONE, HOUR( 0) }, /* Coordinated Universal */
+ { "z", tZONE, HOUR( 0) }, /* Greenwich Mean */
+ { "wet", tZONE, HOUR( 0) }, /* Western European */
+ { "bst", tDAYZONE, HOUR( 0) }, /* British Summer */
+ { "nst", tZONE, HOUR(3)+30 }, /* Newfoundland Standard */
+ { "ndt", tDAYZONE, HOUR(3)+30 }, /* Newfoundland Daylight */
+ { "ast", tZONE, HOUR( 4) }, /* Atlantic Standard */
+ { "adt", tDAYZONE, HOUR( 4) }, /* Atlantic Daylight */
+ { "est", tZONE, HOUR( 5) }, /* Eastern Standard */
+ { "edt", tDAYZONE, HOUR( 5) }, /* Eastern Daylight */
+ { "cst", tZONE, HOUR( 6) }, /* Central Standard */
+ { "cdt", tDAYZONE, HOUR( 6) }, /* Central Daylight */
+ { "mst", tZONE, HOUR( 7) }, /* Mountain Standard */
+ { "mdt", tDAYZONE, HOUR( 7) }, /* Mountain Daylight */
+ { "pst", tZONE, HOUR( 8) }, /* Pacific Standard */
+ { "pdt", tDAYZONE, HOUR( 8) }, /* Pacific Daylight */
+ { "yst", tZONE, HOUR( 9) }, /* Yukon Standard */
+ { "ydt", tDAYZONE, HOUR( 9) }, /* Yukon Daylight */
+ { "akst", tZONE, HOUR( 9) }, /* Alaska Standard */
+ { "akdt", tDAYZONE, HOUR( 9) }, /* Alaska Daylight */
+ { "hst", tZONE, HOUR(10) }, /* Hawaii Standard */
+ { "hast", tZONE, HOUR(10) }, /* Hawaii-Aleutian Standard */
+ { "hadt", tDAYZONE, HOUR(10) }, /* Hawaii-Aleutian Daylight */
+ { "ces", tDAYZONE, -HOUR(1) }, /* Central European Summer */
+ { "cest", tDAYZONE, -HOUR(1) }, /* Central European Summer */
+ { "mez", tZONE, -HOUR(1) }, /* Middle European */
+ { "mezt", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
+ { "cet", tZONE, -HOUR(1) }, /* Central European */
+ { "met", tZONE, -HOUR(1) }, /* Middle European */
+/* Additional aliases for MET / MET DST *************************************/
+ { "mez", tZONE, -HOUR(1) }, /* Middle European */
+ { "mewt", tZONE, -HOUR(1) }, /* Middle European Winter */
+ { "mest", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
+ { "mes", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
+ { "mesz", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
+ { "msz", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
+ { "metdst", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
+/****************************************************************************/
+ { "eet", tZONE, -HOUR(2) }, /* Eastern Europe */
+ { "msk", tZONE, -HOUR(3) }, /* Moscow Winter */
+ { "msd", tDAYZONE, -HOUR(3) }, /* Moscow Summer */
+ { "wast", tZONE, -HOUR(8) }, /* West Australian Standard */
+ { "wadt", tDAYZONE, -HOUR(8) }, /* West Australian Daylight */
+ { "hkt", tZONE, -HOUR(8) }, /* Hong Kong */
+ { "cct", tZONE, -HOUR(8) }, /* China Coast */
+ { "jst", tZONE, -HOUR(9) }, /* Japan Standard */
+ { "kst", tZONE, -HOUR(9) }, /* Korean Standard */
+ { "kdt", tZONE, -HOUR(9) }, /* Korean Daylight */
+ { "cast", tZONE, -(HOUR(9)+30) }, /* Central Australian Standard */
+ { "cadt", tDAYZONE, -(HOUR(9)+30) }, /* Central Australian Daylight */
+ { "east", tZONE, -HOUR(10) }, /* Eastern Australian Standard */
+ { "eadt", tDAYZONE, -HOUR(10) }, /* Eastern Australian Daylight */
+ { "nzst", tZONE, -HOUR(12) }, /* New Zealand Standard */
+ { "nzdt", tDAYZONE, -HOUR(12) }, /* New Zealand Daylight */
+
+ /* For completeness we include the following entries. */
+#if 0
+
+ /* Duplicate names. Either they conflict with a zone listed above
+ * (which is either more likely to be seen or just been in circulation
+ * longer), or they conflict with another zone in this section and
+ * we could not reasonably choose one over the other. */
+ { "fst", tZONE, HOUR( 2) }, /* Fernando De Noronha Standard */
+ { "fdt", tDAYZONE, HOUR( 2) }, /* Fernando De Noronha Daylight */
+ { "bst", tZONE, HOUR( 3) }, /* Brazil Standard */
+ { "est", tZONE, HOUR( 3) }, /* Eastern Standard (Brazil) */
+ { "edt", tDAYZONE, HOUR( 3) }, /* Eastern Daylight (Brazil) */
+ { "wst", tZONE, HOUR( 4) }, /* Western Standard (Brazil) */
+ { "wdt", tDAYZONE, HOUR( 4) }, /* Western Daylight (Brazil) */
+ { "cst", tZONE, HOUR( 5) }, /* Chile Standard */
+ { "cdt", tDAYZONE, HOUR( 5) }, /* Chile Daylight */
+ { "ast", tZONE, HOUR( 5) }, /* Acre Standard */
+ { "adt", tDAYZONE, HOUR( 5) }, /* Acre Daylight */
+ { "cst", tZONE, HOUR( 5) }, /* Cuba Standard */
+ { "cdt", tDAYZONE, HOUR( 5) }, /* Cuba Daylight */
+ { "est", tZONE, HOUR( 6) }, /* Easter Island Standard */
+ { "edt", tDAYZONE, HOUR( 6) }, /* Easter Island Daylight */
+ { "sst", tZONE, HOUR(11) }, /* Samoa Standard */
+ { "ist", tZONE, -HOUR(2) }, /* Israel Standard */
+ { "idt", tDAYZONE, -HOUR(2) }, /* Israel Daylight */
+ { "idt", tDAYZONE, -(HOUR(3)+30) }, /* Iran Daylight */
+ { "ist", tZONE, -(HOUR(3)+30) }, /* Iran Standard */
+ { "cst", tZONE, -HOUR(8) }, /* China Standard */
+ { "cdt", tDAYZONE, -HOUR(8) }, /* China Daylight */
+ { "sst", tZONE, -HOUR(8) }, /* Singapore Standard */
+
+ /* Dubious (e.g., not in Olson's TIMEZONE package) or obsolete. */
+ { "gst", tZONE, HOUR( 3) }, /* Greenland Standard */
+ { "wat", tZONE, -HOUR(1) }, /* West Africa */
+ { "at", tZONE, HOUR( 2) }, /* Azores */
+ { "gst", tZONE, -HOUR(10) }, /* Guam Standard */
+ { "nft", tZONE, HOUR(3)+30 }, /* Newfoundland */
+ { "idlw", tZONE, HOUR(12) }, /* International Date Line West */
+ { "mewt", tZONE, -HOUR(1) }, /* Middle European Winter */
+ { "mest", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
+ { "swt", tZONE, -HOUR(1) }, /* Swedish Winter */
+ { "sst", tDAYZONE, -HOUR(1) }, /* Swedish Summer */
+ { "fwt", tZONE, -HOUR(1) }, /* French Winter */
+ { "fst", tDAYZONE, -HOUR(1) }, /* French Summer */
+ { "bt", tZONE, -HOUR(3) }, /* Baghdad */
+ { "it", tZONE, -(HOUR(3)+30) }, /* Iran */
+ { "zp4", tZONE, -HOUR(4) }, /* USSR Zone 3 */
+ { "zp5", tZONE, -HOUR(5) }, /* USSR Zone 4 */
+ { "ist", tZONE, -(HOUR(5)+30) }, /* Indian Standard */
+ { "zp6", tZONE, -HOUR(6) }, /* USSR Zone 5 */
+ { "nst", tZONE, -HOUR(7) }, /* North Sumatra */
+ { "sst", tZONE, -HOUR(7) }, /* South Sumatra */
+ { "jt", tZONE, -(HOUR(7)+30) }, /* Java (3pm in Cronusland!) */
+ { "nzt", tZONE, -HOUR(12) }, /* New Zealand */
+ { "idle", tZONE, -HOUR(12) }, /* International Date Line East */
+ { "cat", tZONE, HOUR(10) }, /* -- expired 1967 */
+ { "nt", tZONE, HOUR(11) }, /* -- expired 1967 */
+ { "ahst", tZONE, HOUR(10) }, /* -- expired 1983 */
+ { "hdt", tDAYZONE, HOUR(10) }, /* -- expired 1986 */
+#endif /* 0 */
+};
+/* *INDENT-ON* */
+
+static time_t ToSeconds(time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian)
+{
+ if ((long) Minutes < 0 || Minutes > 59 || (long) Seconds < 0 || Seconds > 61)
+ return -1;
+ if (Meridian == MER24) {
+ if ((long) Hours < 0 || Hours > 23)
+ return -1;
+ } else {
+ if (Hours < 1 || Hours > 12)
+ return -1;
+ if (Hours == 12)
+ Hours = 0;
+ if (Meridian == MERpm)
+ Hours += 12;
+ }
+ return (Hours * 60L + Minutes) * 60L + Seconds;
+}
+
+static time_t Convert(time_t Month, time_t Day, time_t Year, time_t Hours,
+ time_t Minutes, time_t Seconds, MERIDIAN Meridian,
+ DSTMODE dst)
+{
+ static const int DaysNormal[13] =
+ {
+ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+ };
+ static const int DaysLeap[13] =
+ {
+ 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+ };
+ static const int LeapYears[] =
+ {
+ 1972, 1976, 1980, 1984, 1988, 1992, 1996,
+ 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036
+ };
+ const int *yp;
+ const int *mp;
+ int i;
+ time_t Julian;
+ time_t tod;
+
+ if ((long) Year < 0)
+ Year = -Year;
+ if (Year < 70)
+ Year += 2000;
+ if (Year < 100)
+ Year += 1900;
+ if (Year < EPOCH)
+ Year += 100;
+ for (mp = DaysNormal, yp = LeapYears; yp < ENDOF(LeapYears); yp++)
+ if (Year == *yp) {
+ mp = DaysLeap;
+ break;
+ }
+ if (Year < EPOCH || Year > END_OF_TIME
+ || Month < 1 || Month > 12
+ /* NOSTRICT */
+ /* conversion from long may lose accuracy */
+ || Day < 1 || Day > mp[(int) Month]) {
+ return -1;
+ }
+
+ Julian = Day - 1 + (Year - EPOCH) * 365;
+ for (yp = LeapYears; yp < ENDOF(LeapYears); yp++, Julian++) {
+ if (Year <= *yp)
+ break;
+ }
+ for (i = 1; i < Month; i++)
+ Julian += *++mp;
+ Julian *= SECSPERDAY;
+ Julian += yyTimezone * 60L;
+ if ((long) (tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0) {
+ return -1;
+ }
+ Julian += tod;
+ tod = Julian;
+ if (dst == DSTon || (dst == DSTmaybe && localtime(&tod)->tm_isdst))
+ Julian -= DST_OFFSET * 60 * 60;
+ return Julian;
+}
+
+static time_t DSTcorrect(time_t Start, time_t Future)
+{
+ time_t StartDay;
+ time_t FutureDay;
+
+ StartDay = (localtime(&Start)->tm_hour + 1) % 24;
+ FutureDay = (localtime(&Future)->tm_hour + 1) % 24;
+ return (Future - Start) + (StartDay - FutureDay) * DST_OFFSET * 60 * 60;
+}
+
+static time_t RelativeMonth(time_t Start, time_t RelMonth)
+{
+ struct tm *tm;
+ time_t Month;
+ time_t Year;
+
+ tm = localtime(&Start);
+ Month = 12 * tm->tm_year + tm->tm_mon + RelMonth;
+ Year = Month / 12 + 1900;
+ Month = Month % 12 + 1;
+ return DSTcorrect(Start,
+ Convert(Month, (time_t) tm->tm_mday, Year,
+ (time_t) tm->tm_hour, (time_t) tm->tm_min,
+ (time_t) tm->tm_sec,
+ MER24, DSTmaybe));
+}
+
+static int LookupWord(char *buff,
+ int length)
+{
+ char *p;
+ const char *q;
+ const TABLE *tp;
+ int c;
+
+ p = buff;
+ c = p[0];
+
+ /* See if we have an abbreviation for a month. */
+ if (length == 3 || (length == 4 && p[3] == '.')) {
+ for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) {
+ q = tp->name;
+ if (c == q[0] && p[1] == q[1] && p[2] == q[2]) {
+ yylval.Number = tp->value;
+ return tp->type;
+ }
+ }
+ } else {
+ for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) {
+ if (c == tp->name[0] && strcmp(p, tp->name) == 0) {
+ yylval.Number = tp->value;
+ return tp->type;
+ }
+ }
+ }
+
+ /* Try for a timezone. */
+ for (tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++) {
+ if (c == tp->name[0] && p[1] == tp->name[1]
+ && strcmp(p, tp->name) == 0) {
+ yylval.Number = tp->value;
+ return tp->type;
+ }
+ }
+
+ if (strcmp(buff, "dst") == 0)
+ return tDST;
+
+ /* Try the units table. */
+ for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++) {
+ if (c == tp->name[0] && strcmp(p, tp->name) == 0) {
+ yylval.Number = tp->value;
+ return tp->type;
+ }
+ }
+
+ /* Strip off any plural and try the units table again. */
+ if (--length > 0 && p[length] == 's') {
+ p[length] = '\0';
+ for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++) {
+ if (c == tp->name[0] && strcmp(p, tp->name) == 0) {
+ p[length] = 's';
+ yylval.Number = tp->value;
+ return tp->type;
+ }
+ }
+ p[length] = 's';
+ }
+ length++;
+
+ /* Drop out any periods. */
+ for (p = buff, q = (PD_STRING) buff; *q; q++) {
+ if (*q != '.')
+ *p++ = *q;
+ }
+ *p = '\0';
+
+ /* Try the meridians. */
+ if (buff[1] == 'm' && buff[2] == '\0') {
+ if (buff[0] == 'a') {
+ yylval.Meridian = MERam;
+ return tMERIDIAN;
+ }
+ if (buff[0] == 'p') {
+ yylval.Meridian = MERpm;
+ return tMERIDIAN;
+ }
+ }
+
+ /* If we saw any periods, try the timezones again. */
+ if (p - buff != length) {
+ c = buff[0];
+ for (p = buff, tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++) {
+ if (c == tp->name[0] && p[1] == tp->name[1]
+ && strcmp(p, tp->name) == 0) {
+ yylval.Number = tp->value;
+ return tp->type;
+ }
+ }
+ }
+
+ /* Unknown word -- assume GMT timezone. */
+ yylval.Number = 0;
+ return tZONE;
+}
+
+/*
+ * This returns characters as-is (the ones that are not part of some token),
+ * and codes greater than 256 (the token values).
+ *
+ * yacc generates tables that may use the character value. In particular,
+ * byacc's yycheck[] table contains integer values for the expected codes from
+ * this function, which (unless byacc is run locally) are ASCII codes.
+ *
+ * The TO_LOCAL() function assumes its input is in ASCII, and the output is
+ * whatever native encoding is used on the machine, e.g., EBCDIC.
+ *
+ * The TO_ASCII() function is the inverse of TO_LOCAL().
+ */
+static int date_lex(void)
+{
+ int c;
+ char *p;
+ char buff[20];
+ int sign;
+ int i;
+ int nesting;
+
+ /* Get first character after the whitespace. */
+ for (;;) {
+ while (CTYPE(isspace, *yyInput))
+ yyInput++;
+ c = *yyInput;
+
+ /* Ignore RFC 822 comments, typically time zone names. */
+ if (c != LPAREN)
+ break;
+ for (nesting = 1;
+ (c = *++yyInput) != RPAREN || --nesting;
+ ) {
+ if (c == LPAREN) {
+ nesting++;
+ } else if (!IS7BIT(c) || c == '\0' || c == '\r'
+ || (c == '\\'
+ && ((c = *++yyInput) == '\0'
+ || !IS7BIT(c)))) {
+ /* Lexical error: bad comment. */
+ return '?';
+ }
+ }
+ yyInput++;
+ }
+
+ /* A number? */
+ if (CTYPE(isdigit, c) || c == '-' || c == '+') {
+ if (c == '-' || c == '+') {
+ sign = c == '-' ? -1 : 1;
+ yyInput++;
+ if (!CTYPE(isdigit, *yyInput)) {
+ /* Return the isolated plus or minus sign. */
+ --yyInput;
+ return *yyInput++;
+ }
+ } else {
+ sign = 0;
+ }
+ for (p = buff;
+ (c = *yyInput++) != '\0' && CTYPE(isdigit, c);
+ ) {
+ if (p < &buff[sizeof buff - 1])
+ *p++ = (char) c;
+ }
+ *p = '\0';
+ i = atoi(buff);
+
+ yyInput--;
+ yylval.Number = sign < 0 ? -i : i;
+ return sign ? tSNUMBER : tUNUMBER;
+ }
+
+ /* A word? */
+ if (CTYPE(isalpha, c)) {
+ for (p = buff;
+ (c = *yyInput++) == '.' || CTYPE(isalpha, c);
+ ) {
+ if (p < &buff[sizeof buff - 1])
+ *p++ = (char) (CTYPE(isupper, c) ? tolower(c) : c);
+ }
+ *p = '\0';
+ yyInput--;
+ return LookupWord(buff, (int) (p - buff));
+ }
+
+ return *yyInput++;
+}
+
+static int GetTimeInfo(TIMEINFO * Now)
+{
+ static time_t LastTime;
+ static long LastTzone;
+ struct tm *tm;
+
+#if defined(HAVE_GETTIMEOFDAY)
+ struct timeval tv;
+#endif /* defined(HAVE_GETTIMEOFDAY) */
+#if defined(DONT_HAVE_TM_GMTOFF)
+ struct tm local;
+ struct tm gmt;
+#endif /* !defined(DONT_HAVE_TM_GMTOFF) */
+
+ /* Get the basic time. */
+#if defined(HAVE_GETTIMEOFDAY)
+ if (gettimeofday(&tv, (struct timezone *) NULL) == -1)
+ return -1;
+ Now->time = tv.tv_sec;
+ Now->usec = tv.tv_usec;
+#else
+ /* Can't check for -1 since that might be a time, I guess. */
+ (void) time(&Now->time);
+ Now->usec = 0;
+#endif /* defined(HAVE_GETTIMEOFDAY) */
+
+ /* Now get the timezone if it's been an hour since the last time. */
+ if (Now->time - LastTime > 60 * 60) {
+ LastTime = Now->time;
+ if ((tm = localtime(&Now->time)) == NULL)
+ return -1;
+#if defined(DONT_HAVE_TM_GMTOFF)
+ /* To get the timezone, compare localtime with GMT. */
+ local = *tm;
+ if ((tm = gmtime(&Now->time)) == NULL)
+ return -1;
+ gmt = *tm;
+
+ /* Assume we are never more than 24 hours away. */
+ LastTzone = gmt.tm_yday - local.tm_yday;
+ if (LastTzone > 1)
+ LastTzone = -24;
+ else if (LastTzone < -1)
+ LastTzone = 24;
+ else
+ LastTzone *= 24;
+
+ /* Scale in the hours and minutes; ignore seconds. */
+ LastTzone += gmt.tm_hour - local.tm_hour;
+ LastTzone *= 60;
+ LastTzone += gmt.tm_min - local.tm_min;
+#else
+ LastTzone = (0 - tm->tm_gmtoff) / 60;
+#endif /* defined(DONT_HAVE_TM_GMTOFF) */
+ }
+ Now->tzone = LastTzone;
+ return 0;
+}
+
+#if defined(YYBYACC) && defined(YYPURE) && defined(LY_FIND_LEAKS)
+#undef YYPURE
+#define YYPURE 1
+static void yyfreestack(YYSTACKDATA *);
+static void parsedate_leaks(void)
+{
+ yyfreestack(&yystack);
+}
+#endif
+
+time_t parsedate(char *p,
+ TIMEINFO * now)
+{
+ struct tm *tm;
+ TIMEINFO ti;
+ time_t Start;
+
+#if defined(YYBYACC) && defined(YYPURE) && defined(LY_FIND_LEAKS)
+ static int initialized;
+
+ if (!initialized) {
+ initialized = 1;
+ atexit(parsedate_leaks);
+ }
+#endif
+
+ yyInput = p;
+ if (now == NULL) {
+ now = &ti;
+ (void) GetTimeInfo(&ti);
+ }
+
+ tm = localtime(&now->time);
+ yyYear = tm->tm_year + 1900;
+ yyMonth = tm->tm_mon + 1;
+ yyDay = tm->tm_mday;
+ yyTimezone = now->tzone;
+ if (tm->tm_isdst) /* Correct timezone offset for DST */
+ yyTimezone += DST_OFFSET * 60;
+ yyDSTmode = DSTmaybe;
+ yyHour = 0;
+ yyMinutes = 0;
+ yySeconds = 0;
+ yyMeridian = MER24;
+ yyRelSeconds = 0;
+ yyRelMonth = 0;
+ yyHaveDate = 0;
+ yyHaveRel = 0;
+ yyHaveTime = 0;
+
+ if (date_parse() || yyHaveTime > 1 || yyHaveDate > 1)
+ return -1;
+
+ if (yyHaveDate || yyHaveTime) {
+ Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds,
+ yyMeridian, yyDSTmode);
+ if ((long) Start < 0)
+ return -1;
+ } else {
+ Start = now->time;
+ if (!yyHaveRel)
+ Start -= (tm->tm_hour * 60L + tm->tm_min) * 60L + tm->tm_sec;
+ }
+
+ Start += yyRelSeconds;
+ if (yyRelMonth)
+ Start += RelativeMonth(Start, yyRelMonth);
+
+ /* Have to do *something* with a legitimate -1 so it's distinguishable
+ * from the error return value. (Alternately could set errno on error.) */
+ return (Start == (time_t) -1) ? 0 : Start;
+}
+#line 1013 "y.tab.c"
+
+#if YYDEBUG
+#include <stdio.h> /* needed for printf */
+#endif
+
+#include <stdlib.h> /* needed for malloc, etc */
+#include <string.h> /* needed for memset */
+
+/* allocate initial stack or double stack size, up to YYMAXDEPTH */
+static int yygrowstack(YYSTACKDATA *data)
+{
+ int i;
+ unsigned newsize;
+ YYINT *newss;
+ YYSTYPE *newvs;
+
+ if ((newsize = data->stacksize) == 0)
+ newsize = YYINITSTACKSIZE;
+ else if (newsize >= YYMAXDEPTH)
+ return YYENOMEM;
+ else if ((newsize *= 2) > YYMAXDEPTH)
+ newsize = YYMAXDEPTH;
+
+ i = (int) (data->s_mark - data->s_base);
+ newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
+ if (newss == 0)
+ return YYENOMEM;
+
+ data->s_base = newss;
+ data->s_mark = newss + i;
+
+ newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
+ if (newvs == 0)
+ return YYENOMEM;
+
+ data->l_base = newvs;
+ data->l_mark = newvs + i;
+
+ data->stacksize = newsize;
+ data->s_last = data->s_base + newsize - 1;
+ return 0;
+}
+
+#if YYPURE || defined(YY_NO_LEAKS)
+static void yyfreestack(YYSTACKDATA *data)
+{
+ free(data->s_base);
+ free(data->l_base);
+ memset(data, 0, sizeof(*data));
+}
+#else
+#define yyfreestack(data) /* nothing */
+#endif
+
+#define YYABORT goto yyabort
+#define YYREJECT goto yyabort
+#define YYACCEPT goto yyaccept
+#define YYERROR goto yyerrlab
+
+int
+YYPARSE_DECL()
+{
+ int yym, yyn, yystate;
+#if YYDEBUG
+ const char *yys;
+
+ if ((yys = getenv("YYDEBUG")) != 0)
+ {
+ yyn = *yys;
+ if (yyn >= '0' && yyn <= '9')
+ yydebug = yyn - '0';
+ }
+#endif
+
+ yym = 0;
+ yyn = 0;
+ yynerrs = 0;
+ yyerrflag = 0;
+ yychar = YYEMPTY;
+ yystate = 0;
+
+#if YYPURE
+ memset(&yystack, 0, sizeof(yystack));
+#endif
+
+ if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
+ yystack.s_mark = yystack.s_base;
+ yystack.l_mark = yystack.l_base;
+ yystate = 0;
+ *yystack.s_mark = 0;
+
+yyloop:
+ if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
+ if (yychar < 0)
+ {
+ yychar = YYLEX;
+ if (yychar < 0) yychar = YYEOF;
+#if YYDEBUG
+ if (yydebug)
+ {
+ if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
+ printf("%sdebug: state %d, reading %d (%s)\n",
+ YYPREFIX, yystate, yychar, yys);
+ }
+#endif
+ }
+ if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
+ yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
+ {
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: state %d, shifting to state %d\n",
+ YYPREFIX, yystate, yytable[yyn]);
+#endif
+ if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
+ yystate = yytable[yyn];
+ *++yystack.s_mark = yytable[yyn];
+ *++yystack.l_mark = yylval;
+ yychar = YYEMPTY;
+ if (yyerrflag > 0) --yyerrflag;
+ goto yyloop;
+ }
+ if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
+ yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
+ {
+ yyn = yytable[yyn];
+ goto yyreduce;
+ }
+ if (yyerrflag != 0) goto yyinrecovery;
+
+ YYERROR_CALL("syntax error");
+
+ goto yyerrlab; /* redundant goto avoids 'unused label' warning */
+yyerrlab:
+ ++yynerrs;
+
+yyinrecovery:
+ if (yyerrflag < 3)
+ {
+ yyerrflag = 3;
+ for (;;)
+ {
+ if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
+ yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)
+ {
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: state %d, error recovery shifting\
+ to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
+#endif
+ if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
+ yystate = yytable[yyn];
+ *++yystack.s_mark = yytable[yyn];
+ *++yystack.l_mark = yylval;
+ goto yyloop;
+ }
+ else
+ {
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: error recovery discarding state %d\n",
+ YYPREFIX, *yystack.s_mark);
+#endif
+ if (yystack.s_mark <= yystack.s_base) goto yyabort;
+ --yystack.s_mark;
+ --yystack.l_mark;
+ }
+ }
+ }
+ else
+ {
+ if (yychar == YYEOF) goto yyabort;
+#if YYDEBUG
+ if (yydebug)
+ {
+ if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
+ printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
+ YYPREFIX, yystate, yychar, yys);
+ }
+#endif
+ yychar = YYEMPTY;
+ goto yyloop;
+ }
+
+yyreduce:
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: state %d, reducing by rule %d (%s)\n",
+ YYPREFIX, yystate, yyn, yyrule[yyn]);
+#endif
+ yym = yylen[yyn];
+ if (yym > 0)
+ yyval = yystack.l_mark[1-yym];
+ else
+ memset(&yyval, 0, sizeof yyval);
+
+ switch (yyn)
+ {
+case 3:
+#line 154 "./parsdate.y"
+ {
+ yyHaveTime++;
+#if defined(lint)
+ /* I am compulsive about lint natterings... */
+ if (yyHaveTime == -1) {
+ YYERROR;
+ }
+#endif /* defined(lint) */
+ }
+break;
+case 4:
+#line 163 "./parsdate.y"
+ {
+ yyHaveTime++;
+ yyTimezone = yystack.l_mark[0].Number;
+ }
+break;
+case 5:
+#line 167 "./parsdate.y"
+ {
+ yyHaveDate++;
+ }
+break;
+case 6:
+#line 170 "./parsdate.y"
+ {
+ yyHaveDate++;
+ yyHaveTime++;
+ }
+break;
+case 7:
+#line 174 "./parsdate.y"
+ {
+ yyHaveDate++;
+ yyHaveTime++;
+ yyTimezone = yystack.l_mark[0].Number;
+ }
+break;
+case 8:
+#line 179 "./parsdate.y"
+ {
+ yyHaveRel = 1;
+ }
+break;
+case 9:
+#line 184 "./parsdate.y"
+ {
+ if (yystack.l_mark[-1].Number < 100) {
+ yyHour = yystack.l_mark[-1].Number;
+ yyMinutes = 0;
+ }
+ else {
+ yyHour = yystack.l_mark[-1].Number / 100;
+ yyMinutes = yystack.l_mark[-1].Number % 100;
+ }
+ yySeconds = 0;
+ yyMeridian = yystack.l_mark[0].Meridian;
+ }
+break;
+case 10:
+#line 196 "./parsdate.y"
+ {
+ yyHour = yystack.l_mark[-3].Number;
+ yyMinutes = yystack.l_mark[-1].Number;
+ yySeconds = 0;
+ yyMeridian = yystack.l_mark[0].Meridian;
+ }
+break;
+case 11:
+#line 202 "./parsdate.y"
+ {
+ yyHour = yystack.l_mark[-3].Number;
+ yyMinutes = yystack.l_mark[-1].Number;
+ yyTimezone = yystack.l_mark[0].Number;
+ yyMeridian = MER24;
+ yyDSTmode = DSToff;
+ }
+break;
+case 12:
+#line 209 "./parsdate.y"
+ {
+ yyHour = yystack.l_mark[-5].Number;
+ yyMinutes = yystack.l_mark[-3].Number;
+ yySeconds = yystack.l_mark[-1].Number;
+ yyMeridian = yystack.l_mark[0].Meridian;
+ }
+break;
+case 13:
+#line 215 "./parsdate.y"
+ {
+ yyHour = yystack.l_mark[-5].Number;
+ yyMinutes = yystack.l_mark[-3].Number;
+ yySeconds = yystack.l_mark[-1].Number;
+ yyTimezone = yystack.l_mark[0].Number;
+ yyMeridian = MER24;
+ yyDSTmode = DSToff;
+ }
+break;
+case 14:
+#line 225 "./parsdate.y"
+ {
+ yyval.Number = yystack.l_mark[0].Number;
+ yyDSTmode = DSToff;
+ }
+break;
+case 15:
+#line 229 "./parsdate.y"
+ {
+ yyval.Number = yystack.l_mark[0].Number;
+ yyDSTmode = DSTon;
+ }
+break;
+case 16:
+#line 233 "./parsdate.y"
+ {
+ yyTimezone = yystack.l_mark[-1].Number;
+ yyDSTmode = DSTon;
+ }
+break;
+case 17:
+#line 237 "./parsdate.y"
+ {
+ /* Only allow "GMT+300" and "GMT-0800" */
+ if (yystack.l_mark[-1].Number != 0) {
+ YYABORT;
+ }
+ yyval.Number = yystack.l_mark[0].Number;
+ yyDSTmode = DSToff;
+ }
+break;
+case 18:
+#line 245 "./parsdate.y"
+ {
+ yyval.Number = yystack.l_mark[0].Number;
+ yyDSTmode = DSToff;
+ }
+break;
+case 19:
+#line 251 "./parsdate.y"
+ {
+ int i;
+
+ /* Unix and GMT and numeric timezones -- a little confusing. */
+ if ((int)yystack.l_mark[0].Number < 0) {
+ /* Don't work with negative modulus. */
+ yystack.l_mark[0].Number = -(int)yystack.l_mark[0].Number;
+ if (yystack.l_mark[0].Number > 9999 || (i = (int) (yystack.l_mark[0].Number % 100)) >= 60) {
+ YYABORT;
+ }
+ yyval.Number = (yystack.l_mark[0].Number / 100) * 60 + i;
+ }
+ else {
+ if (yystack.l_mark[0].Number > 9999 || (i = (int) (yystack.l_mark[0].Number % 100)) >= 60) {
+ YYABORT;
+ }
+ yyval.Number = -((yystack.l_mark[0].Number / 100) * 60 + i);
+ }
+ }
+break;
+case 20:
+#line 272 "./parsdate.y"
+ {
+ yyMonth = yystack.l_mark[-2].Number;
+ yyDay = yystack.l_mark[0].Number;
+ }
+break;
+case 21:
+#line 276 "./parsdate.y"
+ {
+ if (yystack.l_mark[-4].Number > 100) {
+ yyYear = yystack.l_mark[-4].Number;
+ yyMonth = yystack.l_mark[-2].Number;
+ yyDay = yystack.l_mark[0].Number;
+ }
+ else {
+ yyMonth = yystack.l_mark[-4].Number;
+ yyDay = yystack.l_mark[-2].Number;
+ yyYear = yystack.l_mark[0].Number;
+ }
+ }
+break;
+case 22:
+#line 288 "./parsdate.y"
+ {
+ yyMonth = yystack.l_mark[-1].Number;
+ yyDay = yystack.l_mark[0].Number;
+ }
+break;
+case 23:
+#line 292 "./parsdate.y"
+ {
+ yyMonth = yystack.l_mark[-3].Number;
+ yyDay = yystack.l_mark[-2].Number;
+ yyYear = yystack.l_mark[0].Number;
+ }
+break;
+case 24:
+#line 297 "./parsdate.y"
+ {
+ yyDay = yystack.l_mark[-1].Number;
+ yyMonth = yystack.l_mark[0].Number;
+ }
+break;
+case 25:
+#line 301 "./parsdate.y"
+ {
+ yyDay = yystack.l_mark[-2].Number;
+ yyMonth = yystack.l_mark[-1].Number;
+ yyYear = yystack.l_mark[0].Number;
+ }
+break;
+case 26:
+#line 306 "./parsdate.y"
+ {
+ yyDay = yystack.l_mark[-2].Number;
+ yyMonth = yystack.l_mark[-1].Number;
+ yyYear = yystack.l_mark[0].Number;
+ }
+break;
+case 27:
+#line 311 "./parsdate.y"
+ {
+ yyDay = yystack.l_mark[-3].Number;
+ yyMonth = yystack.l_mark[-1].Number;
+ yyYear = -yystack.l_mark[0].Number;
+ }
+break;
+case 28:
+#line 316 "./parsdate.y"
+ {
+ yyDay = yystack.l_mark[-2].Number;
+ yyMonth = -yystack.l_mark[-1].Number;
+ yyYear = -yystack.l_mark[0].Number;
+ yyDSTmode = DSToff; /* assume midnight if no time given */
+ yyTimezone = 0; /* Lynx assumes GMT for this format */
+ }
+break;
+case 29:
+#line 325 "./parsdate.y"
+ {
+ yyMonth = yystack.l_mark[-7].Number;
+ yyDay = yystack.l_mark[-6].Number;
+ yyYear = yystack.l_mark[0].Number;
+ yyHour = yystack.l_mark[-5].Number;
+ yyMinutes = yystack.l_mark[-3].Number;
+ yySeconds = yystack.l_mark[-1].Number;
+ }
+break;
+case 30:
+#line 335 "./parsdate.y"
+ {
+ yyRelSeconds += yystack.l_mark[-1].Number * yystack.l_mark[0].Number;
+ }
+break;
+case 31:
+#line 338 "./parsdate.y"
+ {
+ yyRelSeconds += yystack.l_mark[-1].Number * yystack.l_mark[0].Number;
+ }
+break;
+case 32:
+#line 341 "./parsdate.y"
+ {
+ yyRelMonth += yystack.l_mark[-1].Number * yystack.l_mark[0].Number;
+ }
+break;
+case 33:
+#line 344 "./parsdate.y"
+ {
+ yyRelMonth += yystack.l_mark[-1].Number * yystack.l_mark[0].Number;
+ }
+break;
+case 34:
+#line 349 "./parsdate.y"
+ {
+ yyval.Meridian = MER24;
+ }
+break;
+case 35:
+#line 352 "./parsdate.y"
+ {
+ yyval.Meridian = yystack.l_mark[0].Meridian;
+ }
+break;
+#line 1498 "y.tab.c"
+ }
+ yystack.s_mark -= yym;
+ yystate = *yystack.s_mark;
+ yystack.l_mark -= yym;
+ yym = yylhs[yyn];
+ if (yystate == 0 && yym == 0)
+ {
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: after reduction, shifting from state 0 to\
+ state %d\n", YYPREFIX, YYFINAL);
+#endif
+ yystate = YYFINAL;
+ *++yystack.s_mark = YYFINAL;
+ *++yystack.l_mark = yyval;
+ if (yychar < 0)
+ {
+ yychar = YYLEX;
+ if (yychar < 0) yychar = YYEOF;
+#if YYDEBUG
+ if (yydebug)
+ {
+ if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
+ printf("%sdebug: state %d, reading %d (%s)\n",
+ YYPREFIX, YYFINAL, yychar, yys);
+ }
+#endif
+ }
+ if (yychar == YYEOF) goto yyaccept;
+ goto yyloop;
+ }
+ if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&
+ yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate)
+ yystate = yytable[yyn];
+ else
+ yystate = yydgoto[yym];
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: after reduction, shifting from state %d \
+to state %d\n", YYPREFIX, *yystack.s_mark, yystate);
+#endif
+ if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
+ *++yystack.s_mark = (YYINT) yystate;
+ *++yystack.l_mark = yyval;
+ goto yyloop;
+
+yyoverflow:
+ YYERROR_CALL("yacc stack overflow");
+
+yyabort:
+ yyfreestack(&yystack);
+ return (1);
+
+yyaccept:
+ yyfreestack(&yystack);
+ return (0);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-23 17:29:54 +0000