Add vfs_readonly module which allows to enforce periodic read-only limit on a share based on a specified start and end dates according to date(1) format

(This used to be commit 8b263c2fda89ff6aa2dc3a60460c5d46cf0814c6)

1 files changed, 2459 insertions, 0 deletions

diff --git a/source3/modules/getdate.c b/source3/modules/getdate.c
new file mode 100644
index 0000000000..d21a0d2aa6
--- /dev/null
+++ b/source3/modules/getdate.c
@@ -0,0 +1,2459 @@
+/* A Bison parser, made by GNU Bison 1.875a.  */
+
+/* Skeleton parser for Yacc-like parsing with Bison,
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003 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 1
+
+/* 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 {
+     tAGO = 258,
+     tDST = 259,
+     tDAY = 260,
+     tDAY_UNIT = 261,
+     tDAYZONE = 262,
+     tHOUR_UNIT = 263,
+     tLOCAL_ZONE = 264,
+     tMERIDIAN = 265,
+     tMINUTE_UNIT = 266,
+     tMONTH = 267,
+     tMONTH_UNIT = 268,
+     tSEC_UNIT = 269,
+     tYEAR_UNIT = 270,
+     tZONE = 271,
+     tSNUMBER = 272,
+     tUNUMBER = 273
+   };
+#endif
+#define tAGO 258
+#define tDST 259
+#define tDAY 260
+#define tDAY_UNIT 261
+#define tDAYZONE 262
+#define tHOUR_UNIT 263
+#define tLOCAL_ZONE 264
+#define tMERIDIAN 265
+#define tMINUTE_UNIT 266
+#define tMONTH 267
+#define tMONTH_UNIT 268
+#define tSEC_UNIT 269
+#define tYEAR_UNIT 270
+#define tZONE 271
+#define tSNUMBER 272
+#define tUNUMBER 273
+
+
+
+
+/* Copy the first part of user declarations.  */
+#line 1 "getdate.y"
+
+/* Parse a string into an internal time stamp.
+   Copyright (C) 1999, 2000, 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.  */
+
+/* Originally written by Steven M. Bellovin <smb@research.att.com> while
+   at the University of North Carolina at Chapel Hill.  Later tweaked by
+   a couple of people on Usenet.  Completely overhauled by Rich $alz
+   <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990.
+
+   Modified by Paul Eggert <eggert@twinsun.com> in August 1999 to do
+   the right thing about local DST.  Unlike previous versions, this
+   version is reentrant.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+# ifdef HAVE_ALLOCA_H
+#  include <alloca.h>
+# endif
+#endif
+
+/* Since the code of getdate.y is not included in the Emacs executable
+   itself, there is no need to #define static in this file.  Even if
+   the code were included in the Emacs executable, it probably
+   wouldn't do any harm to #undef it here; this will only cause
+   problems if we try to write to a static variable, which I don't
+   think this code needs to do.  */
+#ifdef emacs
+# undef static
+#endif
+
+#include <ctype.h>
+
+#if HAVE_STDLIB_H
+# include <stdlib.h> /* for `free'; used by Bison 1.27 */
+#endif
+
+#if STDC_HEADERS || (! defined isascii && ! HAVE_ISASCII)
+# define IN_CTYPE_DOMAIN(c) 1
+#else
+# define IN_CTYPE_DOMAIN(c) isascii (c)
+#endif
+
+#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c))
+#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
+#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
+#define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
+
+/* ISDIGIT differs from ISDIGIT_LOCALE, as follows:
+   - Its arg may be any int or unsigned int; it need not be an unsigned char.
+   - It's guaranteed to evaluate its argument exactly once.
+   - It's typically faster.
+   POSIX says that only '0' through '9' are digits.  Prefer ISDIGIT to
+   ISDIGIT_LOCALE unless it's important to use the locale's definition
+   of `digit' even when the host does not conform to POSIX.  */
+#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
+
+#if STDC_HEADERS || HAVE_STRING_H
+# include <string.h>
+#endif
+
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
+# define __attribute__(x)
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif
+
+#define EPOCH_YEAR 1970
+#define TM_YEAR_BASE 1900
+
+#define HOUR(x) ((x) * 60)
+
+/* An integer value, and the number of digits in its textual
+   representation.  */
+typedef struct
+{
+  int value;
+  int digits;
+} textint;
+
+/* An entry in the lexical lookup table.  */
+typedef struct
+{
+  char const *name;
+  int type;
+  int value;
+} table;
+
+/* Meridian: am, pm, or 24-hour style.  */
+enum { MERam, MERpm, MER24 };
+
+/* Information passed to and from the parser.  */
+typedef struct
+{
+  /* The input string remaining to be parsed. */
+  const char *input;
+
+  /* N, if this is the Nth Tuesday.  */
+  int day_ordinal;
+
+  /* Day of week; Sunday is 0.  */
+  int day_number;
+
+  /* tm_isdst flag for the local zone.  */
+  int local_isdst;
+
+  /* Time zone, in minutes east of UTC.  */
+  int time_zone;
+
+  /* Style used for time.  */
+  int meridian;
+
+  /* Gregorian year, month, day, hour, minutes, and seconds.  */
+  textint year;
+  int month;
+  int day;
+  int hour;
+  int minutes;
+  int seconds;
+
+  /* Relative year, month, day, hour, minutes, and seconds.  */
+  int rel_year;
+  int rel_month;
+  int rel_day;
+  int rel_hour;
+  int rel_minutes;
+  int rel_seconds;
+
+  /* Counts of nonterminals of various flavors parsed so far.  */
+  int dates_seen;
+  int days_seen;
+  int local_zones_seen;
+  int rels_seen;
+  int times_seen;
+  int zones_seen;
+
+  /* Table of local time zone abbrevations, terminated by a null entry.  */
+  table local_time_zone_table[3];
+} parser_control;
+
+#define PC (* (parser_control *) parm)
+#define YYLEX_PARAM parm
+#define YYPARSE_PARAM parm
+
+static int yyerror ();
+static int yylex ();
+
+
+
+/* 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 172 "getdate.y"
+typedef union YYSTYPE {
+  int intval;
+  textint textintval;
+} YYSTYPE;
+/* Line 191 of yacc.c.  */
+#line 281 "getdate.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 293 "getdate.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 <stdlib.h> /* 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   52
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS  22
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS  12
+/* YYNRULES -- Number of rules. */
+#define YYNRULES  54
+/* YYNRULES -- Number of states. */
+#define YYNSTATES  64
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+#define YYUNDEFTOK  2
+#define YYMAXUTOK   273
+
+#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,    20,     2,     2,    21,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,    19,     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,    12,    13,    14,
+      15,    16,    17,    18
+};
+
+#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,    11,    13,    15,    17,
+      19,    21,    24,    29,    34,    41,    48,    50,    53,    55,
+      57,    60,    62,    65,    68,    72,    78,    82,    86,    89,
+      94,    97,   101,   104,   106,   109,   112,   114,   117,   120,
+     122,   125,   128,   130,   133,   136,   138,   141,   144,   146,
+     149,   152,   154,   156,   157
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yysigned_char yyrhs[] =
+{
+      23,     0,    -1,    -1,    23,    24,    -1,    25,    -1,    26,
+      -1,    27,    -1,    29,    -1,    28,    -1,    30,    -1,    32,
+      -1,    18,    10,    -1,    18,    19,    18,    33,    -1,    18,
+      19,    18,    17,    -1,    18,    19,    18,    19,    18,    33,
+      -1,    18,    19,    18,    19,    18,    17,    -1,     9,    -1,
+       9,     4,    -1,    16,    -1,     7,    -1,    16,     4,    -1,
+       5,    -1,     5,    20,    -1,    18,     5,    -1,    18,    21,
+      18,    -1,    18,    21,    18,    21,    18,    -1,    18,    17,
+      17,    -1,    18,    12,    17,    -1,    12,    18,    -1,    12,
+      18,    20,    18,    -1,    18,    12,    -1,    18,    12,    18,
+      -1,    31,     3,    -1,    31,    -1,    18,    15,    -1,    17,
+      15,    -1,    15,    -1,    18,    13,    -1,    17,    13,    -1,
+      13,    -1,    18,     6,    -1,    17,     6,    -1,     6,    -1,
+      18,     8,    -1,    17,     8,    -1,     8,    -1,    18,    11,
+      -1,    17,    11,    -1,    11,    -1,    18,    14,    -1,    17,
+      14,    -1,    14,    -1,    18,    -1,    -1,    10,    -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
+static const unsigned short yyrline[] =
+{
+       0,   188,   188,   190,   194,   196,   198,   200,   202,   204,
+     206,   210,   217,   224,   232,   239,   251,   253,   258,   260,
+     262,   267,   272,   277,   285,   290,   310,   317,   325,   330,
+     336,   341,   350,   359,   363,   365,   367,   369,   371,   373,
+     375,   377,   379,   381,   383,   385,   387,   389,   391,   393,
+     395,   397,   402,   439,   440
+};
+#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", "$undefined", "tAGO", "tDST", "tDAY", "tDAY_UNIT", 
+  "tDAYZONE", "tHOUR_UNIT", "tLOCAL_ZONE", "tMERIDIAN", "tMINUTE_UNIT", 
+  "tMONTH", "tMONTH_UNIT", "tSEC_UNIT", "tYEAR_UNIT", "tZONE", "tSNUMBER", 
+  "tUNUMBER", "':'", "','", "'/'", "$accept", "spec", "item", "time", 
+  "local_zone", "zone", "day", "date", "rel", "relunit", "number", 
+  "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,   267,   268,   269,   270,   271,   272,   273,    58,
+      44,    47
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+static const unsigned char yyr1[] =
+{
+       0,    22,    23,    23,    24,    24,    24,    24,    24,    24,
+      24,    25,    25,    25,    25,    25,    26,    26,    27,    27,
+      27,    28,    28,    28,    29,    29,    29,    29,    29,    29,
+      29,    29,    30,    30,    31,    31,    31,    31,    31,    31,
+      31,    31,    31,    31,    31,    31,    31,    31,    31,    31,
+      31,    31,    32,    33,    33
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
+static const unsigned char yyr2[] =
+{
+       0,     2,     0,     2,     1,     1,     1,     1,     1,     1,
+       1,     2,     4,     4,     6,     6,     1,     2,     1,     1,
+       2,     1,     2,     2,     3,     5,     3,     3,     2,     4,
+       2,     3,     2,     1,     2,     2,     1,     2,     2,     1,
+       2,     2,     1,     2,     2,     1,     2,     2,     1,     2,
+       2,     1,     1,     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,    21,    42,    19,    45,    16,    48,     0,
+      39,    51,    36,    18,     0,    52,     3,     4,     5,     6,
+       8,     7,     9,    33,    10,    22,    17,    28,    20,    41,
+      44,    47,    38,    50,    35,    23,    40,    43,    11,    46,
+      30,    37,    49,    34,     0,     0,     0,    32,     0,    27,
+      31,    26,    53,    24,    29,    54,    13,     0,    12,     0,
+      53,    25,    15,    14
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const yysigned_char yydefgoto[] =
+{
+      -1,     1,    16,    17,    18,    19,    20,    21,    22,    23,
+      24,    58
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+   STATE-NUM.  */
+#define YYPACT_NINF -17
+static const yysigned_char yypact[] =
+{
+     -17,     0,   -17,     1,   -17,   -17,   -17,    19,   -17,   -14,
+     -17,   -17,   -17,    32,    26,    14,   -17,   -17,   -17,   -17,
+     -17,   -17,   -17,    27,   -17,   -17,   -17,    22,   -17,   -17,
+     -17,   -17,   -17,   -17,   -17,   -17,   -17,   -17,   -17,   -17,
+     -16,   -17,   -17,   -17,    29,    25,    30,   -17,    31,   -17,
+     -17,   -17,    28,    23,   -17,   -17,   -17,    33,   -17,    34,
+      -7,   -17,   -17,   -17
+};
+
+/* YYPGOTO[NTERM-NUM].  */
+static const yysigned_char yypgoto[] =
+{
+     -17,   -17,   -17,   -17,   -17,   -17,   -17,   -17,   -17,   -17,
+     -17,   -10
+};
+
+/* 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[] =
+{
+       2,    49,    50,    55,    27,     3,     4,     5,     6,     7,
+      62,     8,     9,    10,    11,    12,    13,    14,    15,    35,
+      36,    25,    37,    26,    38,    39,    40,    41,    42,    43,
+      47,    44,    29,    45,    30,    46,    28,    31,    55,    32,
+      33,    34,    48,    52,    59,    56,    51,    57,    53,    54,
+      63,    60,    61
+};
+
+static const unsigned char yycheck[] =
+{
+       0,    17,    18,    10,    18,     5,     6,     7,     8,     9,
+      17,    11,    12,    13,    14,    15,    16,    17,    18,     5,
+       6,    20,     8,     4,    10,    11,    12,    13,    14,    15,
+       3,    17,     6,    19,     8,    21,     4,    11,    10,    13,
+      14,    15,    20,    18,    21,    17,    17,    19,    18,    18,
+      60,    18,    18
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+   symbol of state STATE-NUM.  */
+static const unsigned char yystos[] =
+{
+       0,    23,     0,     5,     6,     7,     8,     9,    11,    12,
+      13,    14,    15,    16,    17,    18,    24,    25,    26,    27,
+      28,    29,    30,    31,    32,    20,     4,    18,     4,     6,
+       8,    11,    13,    14,    15,     5,     6,     8,    10,    11,
+      12,    13,    14,    15,    17,    19,    21,     3,    20,    17,
+      18,    17,    18,    18,    18,    10,    17,    19,    33,    21,
+      18,    18,    17,    33
+};
+
+#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 <stddef.h> /* 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 (&yylval, YYLEX_PARAM)
+#else
+# define YYLEX yylex (&yylval)
+#endif
+
+/* Enable debugging if requested.  */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+#  include <stdio.h> /* 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 */
+
+
+
+
+
+
+/*----------.
+| 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
+{
+  /* The lookahead symbol.  */
+int yychar;
+
+/* The semantic value of the lookahead symbol.  */
+YYSTYPE yylval;
+
+/* Number of syntax errors so far.  */
+int yynerrs;
+
+  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 195 "getdate.y"
+    { PC.times_seen++; }
+    break;
+
+  case 5:
+#line 197 "getdate.y"
+    { PC.local_zones_seen++; }
+    break;
+
+  case 6:
+#line 199 "getdate.y"
+    { PC.zones_seen++; }
+    break;
+
+  case 7:
+#line 201 "getdate.y"
+    { PC.dates_seen++; }
+    break;
+
+  case 8:
+#line 203 "getdate.y"
+    { PC.days_seen++; }
+    break;
+
+  case 9:
+#line 205 "getdate.y"
+    { PC.rels_seen++; }
+    break;
+
+  case 11:
+#line 211 "getdate.y"
+    {
+	PC.hour = yyvsp[-1].textintval.value;
+	PC.minutes = 0;
+	PC.seconds = 0;
+	PC.meridian = yyvsp[0].intval;
+      }
+    break;
+
+  case 12:
+#line 218 "getdate.y"
+    {
+	PC.hour = yyvsp[-3].textintval.value;
+	PC.minutes = yyvsp[-1].textintval.value;
+	PC.seconds = 0;
+	PC.meridian = yyvsp[0].intval;
+      }
+    break;
+
+  case 13:
+#line 225 "getdate.y"
+    {
+	PC.hour = yyvsp[-3].textintval.value;
+	PC.minutes = yyvsp[-1].textintval.value;
+	PC.meridian = MER24;
+	PC.zones_seen++;
+	PC.time_zone = yyvsp[0].textintval.value % 100 + (yyvsp[0].textintval.value / 100) * 60;
+      }
+    break;
+
+  case 14:
+#line 233 "getdate.y"
+    {
+	PC.hour = yyvsp[-5].textintval.value;
+	PC.minutes = yyvsp[-3].textintval.value;
+	PC.seconds = yyvsp[-1].textintval.value;
+	PC.meridian = yyvsp[0].intval;
+      }
+    break;
+
+  case 15:
+#line 240 "getdate.y"
+    {
+	PC.hour = yyvsp[-5].textintval.value;
+	PC.minutes = yyvsp[-3].textintval.value;
+	PC.seconds = yyvsp[-1].textintval.value;
+	PC.meridian = MER24;
+	PC.zones_seen++;
+	PC.time_zone = yyvsp[0].textintval.value % 100 + (yyvsp[0].textintval.value / 100) * 60;
+      }
+    break;
+
+  case 16:
+#line 252 "getdate.y"
+    { PC.local_isdst = yyvsp[0].intval; }
+    break;
+
+  case 17:
+#line 254 "getdate.y"
+    { PC.local_isdst = yyvsp[-1].intval < 0 ? 1 : yyvsp[-1].intval + 1; }
+    break;
+
+  case 18:
+#line 259 "getdate.y"
+    { PC.time_zone = yyvsp[0].intval; }
+    break;
+
+  case 19:
+#line 261 "getdate.y"
+    { PC.time_zone = yyvsp[0].intval + 60; }
+    break;
+
+  case 20:
+#line 263 "getdate.y"
+    { PC.time_zone = yyvsp[-1].intval + 60; }
+    break;
+
+  case 21:
+#line 268 "getdate.y"
+    {
+	PC.day_ordinal = 1;
+	PC.day_number = yyvsp[0].intval;
+      }
+    break;
+
+  case 22:
+#line 273 "getdate.y"
+    {
+	PC.day_ordinal = 1;
+	PC.day_number = yyvsp[-1].intval;
+      }
+    break;
+
+  case 23:
+#line 278 "getdate.y"
+    {
+	PC.day_ordinal = yyvsp[-1].textintval.value;
+	PC.day_number = yyvsp[0].intval;
+      }
+    break;
+
+  case 24:
+#line 286 "getdate.y"
+    {
+	PC.month = yyvsp[-2].textintval.value;
+	PC.day = yyvsp[0].textintval.value;
+      }
+    break;
+
+  case 25:
+#line 291 "getdate.y"
+    {
+	/* Interpret as YYYY/MM/DD if the first value has 4 or more digits,
+	   otherwise as MM/DD/YY.
+	   The goal in recognizing YYYY/MM/DD is solely to support legacy
+	   machine-generated dates like those in an RCS log listing.  If
+	   you want portability, use the ISO 8601 format.  */
+	if (4 <= yyvsp[-4].textintval.digits)
+	  {
+	    PC.year = yyvsp[-4].textintval;
+	    PC.month = yyvsp[-2].textintval.value;
+	    PC.day = yyvsp[0].textintval.value;
+	  }
+	else
+	  {
+	    PC.month = yyvsp[-4].textintval.value;
+	    PC.day = yyvsp[-2].textintval.value;
+	    PC.year = yyvsp[0].textintval;
+	  }
+      }
+    break;
+
+  case 26:
+#line 311 "getdate.y"
+    {
+	/* ISO 8601 format.  YYYY-MM-DD.  */
+	PC.year = yyvsp[-2].textintval;
+	PC.month = -yyvsp[-1].textintval.value;
+	PC.day = -yyvsp[0].textintval.value;
+      }
+    break;
+
+  case 27:
+#line 318 "getdate.y"
+    {
+	/* e.g. 17-JUN-1992.  */
+	PC.day = yyvsp[-2].textintval.value;
+	PC.month = yyvsp[-1].intval;
+	PC.year.value = -yyvsp[0].textintval.value;
+	PC.year.digits = yyvsp[0].textintval.digits;
+      }
+    break;
+
+  case 28:
+#line 326 "getdate.y"
+    {
+	PC.month = yyvsp[-1].intval;
+	PC.day = yyvsp[0].textintval.value;
+      }
+    break;
+
+  case 29:
+#line 331 "getdate.y"
+    {
+	PC.month = yyvsp[-3].intval;
+	PC.day = yyvsp[-2].textintval.value;
+	PC.year = yyvsp[0].textintval;
+      }
+    break;
+
+  case 30:
+#line 337 "getdate.y"
+    {
+	PC.day = yyvsp[-1].textintval.value;
+	PC.month = yyvsp[0].intval;
+      }
+    break;
+
+  case 31:
+#line 342 "getdate.y"
+    {
+	PC.day = yyvsp[-2].textintval.value;
+	PC.month = yyvsp[-1].intval;
+	PC.year = yyvsp[0].textintval;
+      }
+    break;
+
+  case 32:
+#line 351 "getdate.y"
+    {
+	PC.rel_seconds = -PC.rel_seconds;
+	PC.rel_minutes = -PC.rel_minutes;
+	PC.rel_hour = -PC.rel_hour;
+	PC.rel_day = -PC.rel_day;
+	PC.rel_month = -PC.rel_month;
+	PC.rel_year = -PC.rel_year;
+      }
+    break;
+
+  case 34:
+#line 364 "getdate.y"
+    { PC.rel_year += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 35:
+#line 366 "getdate.y"
+    { PC.rel_year += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 36:
+#line 368 "getdate.y"
+    { PC.rel_year += yyvsp[0].intval; }
+    break;
+
+  case 37:
+#line 370 "getdate.y"
+    { PC.rel_month += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 38:
+#line 372 "getdate.y"
+    { PC.rel_month += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 39:
+#line 374 "getdate.y"
+    { PC.rel_month += yyvsp[0].intval; }
+    break;
+
+  case 40:
+#line 376 "getdate.y"
+    { PC.rel_day += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 41:
+#line 378 "getdate.y"
+    { PC.rel_day += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 42:
+#line 380 "getdate.y"
+    { PC.rel_day += yyvsp[0].intval; }
+    break;
+
+  case 43:
+#line 382 "getdate.y"
+    { PC.rel_hour += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 44:
+#line 384 "getdate.y"
+    { PC.rel_hour += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 45:
+#line 386 "getdate.y"
+    { PC.rel_hour += yyvsp[0].intval; }
+    break;
+
+  case 46:
+#line 388 "getdate.y"
+    { PC.rel_minutes += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 47:
+#line 390 "getdate.y"
+    { PC.rel_minutes += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 48:
+#line 392 "getdate.y"
+    { PC.rel_minutes += yyvsp[0].intval; }
+    break;
+
+  case 49:
+#line 394 "getdate.y"
+    { PC.rel_seconds += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 50:
+#line 396 "getdate.y"
+    { PC.rel_seconds += yyvsp[-1].textintval.value * yyvsp[0].intval; }
+    break;
+
+  case 51:
+#line 398 "getdate.y"
+    { PC.rel_seconds += yyvsp[0].intval; }
+    break;
+
+  case 52:
+#line 403 "getdate.y"
+    {
+	if (PC.dates_seen
+	    && ! PC.rels_seen && (PC.times_seen || 2 < yyvsp[0].textintval.digits))
+	  PC.year = yyvsp[0].textintval;
+	else
+	  {
+	    if (4 < yyvsp[0].textintval.digits)
+	      {
+		PC.dates_seen++;
+		PC.day = yyvsp[0].textintval.value % 100;
+		PC.month = (yyvsp[0].textintval.value / 100) % 100;
+		PC.year.value = yyvsp[0].textintval.value / 10000;
+		PC.year.digits = yyvsp[0].textintval.digits - 4;
+	      }
+	    else
+	      {
+		PC.times_seen++;
+		if (yyvsp[0].textintval.digits <= 2)
+		  {
+		    PC.hour = yyvsp[0].textintval.value;
+		    PC.minutes = 0;
+		  }
+		else
+		  {
+		    PC.hour = yyvsp[0].textintval.value / 100;
+		    PC.minutes = yyvsp[0].textintval.value % 100;
+		  }
+		PC.seconds = 0;
+		PC.meridian = MER24;
+	      }
+	  }
+      }
+    break;
+
+  case 53:
+#line 439 "getdate.y"
+    { yyval.intval = MER24; }
+    break;
+
+  case 54:
+#line 441 "getdate.y"
+    { yyval.intval = yyvsp[0].intval; }
+    break;
+
+
+    }
+
+/* Line 999 of yacc.c.  */
+#line 1593 "getdate.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 444 "getdate.y"
+
+
+/* Include this file down here because bison inserts code above which
+   may define-away `const'.  We want the prototype for get_date to have
+   the same signature as the function definition.  */
+#include "getdate.h"
+
+#ifndef gmtime
+struct tm *gmtime ();
+#endif
+#ifndef localtime
+struct tm *localtime ();
+#endif
+#ifndef mktime
+time_t mktime ();
+#endif
+
+static table const meridian_table[] =
+{
+  { "AM",   tMERIDIAN, MERam },
+  { "A.M.", tMERIDIAN, MERam },
+  { "PM",   tMERIDIAN, MERpm },
+  { "P.M.", tMERIDIAN, MERpm },
+  { 0, 0, 0 }
+};
+
+static table const dst_table[] =
+{
+  { "DST", tDST, 0 }
+};
+
+static table const month_and_day_table[] =
+{
+  { "JANUARY",	tMONTH,	 1 },
+  { "FEBRUARY",	tMONTH,	 2 },
+  { "MARCH",	tMONTH,	 3 },
+  { "APRIL",	tMONTH,	 4 },
+  { "MAY",	tMONTH,	 5 },
+  { "JUNE",	tMONTH,	 6 },
+  { "JULY",	tMONTH,	 7 },
+  { "AUGUST",	tMONTH,	 8 },
+  { "SEPTEMBER",tMONTH,	 9 },
+  { "SEPT",	tMONTH,	 9 },
+  { "OCTOBER",	tMONTH,	10 },
+  { "NOVEMBER",	tMONTH,	11 },
+  { "DECEMBER",	tMONTH,	12 },
+  { "SUNDAY",	tDAY,	 0 },
+  { "MONDAY",	tDAY,	 1 },
+  { "TUESDAY",	tDAY,	 2 },
+  { "TUES",	tDAY,	 2 },
+  { "WEDNESDAY",tDAY,	 3 },
+  { "WEDNES",	tDAY,	 3 },
+  { "THURSDAY",	tDAY,	 4 },
+  { "THUR",	tDAY,	 4 },
+  { "THURS",	tDAY,	 4 },
+  { "FRIDAY",	tDAY,	 5 },
+  { "SATURDAY",	tDAY,	 6 },
+  { 0, 0, 0 }
+};
+
+static table const time_units_table[] =
+{
+  { "YEAR",	tYEAR_UNIT,	 1 },
+  { "MONTH",	tMONTH_UNIT,	 1 },
+  { "FORTNIGHT",tDAY_UNIT,	14 },
+  { "WEEK",	tDAY_UNIT,	 7 },
+  { "DAY",	tDAY_UNIT,	 1 },
+  { "HOUR",	tHOUR_UNIT,	 1 },
+  { "MINUTE",	tMINUTE_UNIT,	 1 },
+  { "MIN",	tMINUTE_UNIT,	 1 },
+  { "SECOND",	tSEC_UNIT,	 1 },
+  { "SEC",	tSEC_UNIT,	 1 },
+  { 0, 0, 0 }
+};
+
+/* Assorted relative-time words. */
+static table const relative_time_table[] =
+{
+  { "TOMORROW",	tMINUTE_UNIT,	24 * 60 },
+  { "YESTERDAY",tMINUTE_UNIT,	- (24 * 60) },
+  { "TODAY",	tMINUTE_UNIT,	 0 },
+  { "NOW",	tMINUTE_UNIT,	 0 },
+  { "LAST",	tUNUMBER,	-1 },
+  { "THIS",	tUNUMBER,	 0 },
+  { "NEXT",	tUNUMBER,	 1 },
+  { "FIRST",	tUNUMBER,	 1 },
+/*{ "SECOND",	tUNUMBER,	 2 }, */
+  { "THIRD",	tUNUMBER,	 3 },
+  { "FOURTH",	tUNUMBER,	 4 },
+  { "FIFTH",	tUNUMBER,	 5 },
+  { "SIXTH",	tUNUMBER,	 6 },
+  { "SEVENTH",	tUNUMBER,	 7 },
+  { "EIGHTH",	tUNUMBER,	 8 },
+  { "NINTH",	tUNUMBER,	 9 },
+  { "TENTH",	tUNUMBER,	10 },
+  { "ELEVENTH",	tUNUMBER,	11 },
+  { "TWELFTH",	tUNUMBER,	12 },
+  { "AGO",	tAGO,		 1 },
+  { 0, 0, 0 }
+};
+
+/* The time zone table.  This table is necessarily incomplete, as time
+   zone abbreviations are ambiguous; e.g. Australians interpret "EST"
+   as Eastern time in Australia, not as US Eastern Standard Time.
+   You cannot rely on getdate to handle arbitrary time zone
+   abbreviations; use numeric abbreviations like `-0500' instead.  */
+static table const time_zone_table[] =
+{
+  { "GMT",	tZONE,     HOUR ( 0) },	/* Greenwich Mean */
+  { "UT",	tZONE,     HOUR ( 0) },	/* Universal (Coordinated) */
+  { "UTC",	tZONE,     HOUR ( 0) },
+  { "WET",	tZONE,     HOUR ( 0) },	/* Western European */
+  { "WEST",	tDAYZONE,  HOUR ( 0) },	/* Western European Summer */
+  { "BST",	tDAYZONE,  HOUR ( 0) },	/* British Summer */
+  { "ART",	tZONE,	  -HOUR ( 3) },	/* Argentina */
+  { "BRT",	tZONE,	  -HOUR ( 3) },	/* Brazil */
+  { "BRST",	tDAYZONE, -HOUR ( 3) },	/* Brazil 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 */
+  { "CLT",	tZONE,    -HOUR ( 4) },	/* Chile */
+  { "CLST",	tDAYZONE, -HOUR ( 4) },	/* Chile Summer */
+  { "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 */
+  { "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 */
+  { "SST",	tZONE,    -HOUR (12) },	/* Samoa Standard */
+  { "WAT",	tZONE,     HOUR ( 1) },	/* West Africa */
+  { "CET",	tZONE,     HOUR ( 1) },	/* Central European */
+  { "CEST",	tDAYZONE,  HOUR ( 1) },	/* Central European Summer */
+  { "MET",	tZONE,     HOUR ( 1) },	/* Middle European */
+  { "MEZ",	tZONE,     HOUR ( 1) },	/* Middle European */
+  { "MEST",	tDAYZONE,  HOUR ( 1) },	/* Middle European Summer */
+  { "MESZ",	tDAYZONE,  HOUR ( 1) },	/* Middle European Summer */
+  { "EET",	tZONE,     HOUR ( 2) },	/* Eastern European */
+  { "EEST",	tDAYZONE,  HOUR ( 2) },	/* Eastern European Summer */
+  { "CAT",	tZONE,	   HOUR ( 2) },	/* Central Africa */
+  { "SAST",	tZONE,	   HOUR ( 2) },	/* South Africa Standard */
+  { "EAT",	tZONE,	   HOUR ( 3) },	/* East Africa */
+  { "MSK",	tZONE,	   HOUR ( 3) },	/* Moscow */
+  { "MSD",	tDAYZONE,  HOUR ( 3) },	/* Moscow Daylight */
+  { "IST",	tZONE,	  (HOUR ( 5) + 30) },	/* India Standard */
+  { "SGT",	tZONE,     HOUR ( 8) },	/* Singapore */
+  { "KST",	tZONE,     HOUR ( 9) },	/* Korea Standard */
+  { "JST",	tZONE,     HOUR ( 9) },	/* Japan Standard */
+  { "GST",	tZONE,     HOUR (10) },	/* Guam Standard */
+  { "NZST",	tZONE,     HOUR (12) },	/* New Zealand Standard */
+  { "NZDT",	tDAYZONE,  HOUR (12) },	/* New Zealand Daylight */
+  { 0, 0, 0  }
+};
+
+/* Military time zone table. */
+static table const military_table[] =
+{
+  { "A", tZONE,	-HOUR ( 1) },
+  { "B", tZONE,	-HOUR ( 2) },
+  { "C", tZONE,	-HOUR ( 3) },
+  { "D", tZONE,	-HOUR ( 4) },
+  { "E", tZONE,	-HOUR ( 5) },
+  { "F", tZONE,	-HOUR ( 6) },
+  { "G", tZONE,	-HOUR ( 7) },
+  { "H", tZONE,	-HOUR ( 8) },
+  { "I", tZONE,	-HOUR ( 9) },
+  { "K", tZONE,	-HOUR (10) },
+  { "L", tZONE,	-HOUR (11) },
+  { "M", tZONE,	-HOUR (12) },
+  { "N", tZONE,	 HOUR ( 1) },
+  { "O", tZONE,	 HOUR ( 2) },
+  { "P", tZONE,	 HOUR ( 3) },
+  { "Q", tZONE,	 HOUR ( 4) },
+  { "R", tZONE,	 HOUR ( 5) },
+  { "S", tZONE,	 HOUR ( 6) },
+  { "T", tZONE,	 HOUR ( 7) },
+  { "U", tZONE,	 HOUR ( 8) },
+  { "V", tZONE,	 HOUR ( 9) },
+  { "W", tZONE,	 HOUR (10) },
+  { "X", tZONE,	 HOUR (11) },
+  { "Y", tZONE,	 HOUR (12) },
+  { "Z", tZONE,	 HOUR ( 0) },
+  { 0, 0, 0 }
+};
+
+
+
+static int
+to_hour (int hours, int meridian)
+{
+  switch (meridian)
+    {
+    case MER24:
+      return 0 <= hours && hours < 24 ? hours : -1;
+    case MERam:
+      return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1;
+    case MERpm:
+      return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1;
+    default:
+      abort ();
+    }
+  /* NOTREACHED */
+}
+
+static int
+to_year (textint textyear)
+{
+  int year = textyear.value;
+
+  if (year < 0)
+    year = -year;
+
+  /* XPG4 suggests that years 00-68 map to 2000-2068, and
+     years 69-99 map to 1969-1999.  */
+  if (textyear.digits == 2)
+    year += year < 69 ? 2000 : 1900;
+
+  return year;
+}
+
+static table const *
+lookup_zone (parser_control const *pc, char const *name)
+{
+  table const *tp;
+
+  /* Try local zone abbreviations first; they're more likely to be right.  */
+  for (tp = pc->local_time_zone_table; tp->name; tp++)
+    if (strcmp (name, tp->name) == 0)
+      return tp;
+
+  for (tp = time_zone_table; tp->name; tp++)
+    if (strcmp (name, tp->name) == 0)
+      return tp;
+
+  return 0;
+}
+
+#if ! HAVE_TM_GMTOFF
+/* Yield the difference between *A and *B,
+   measured in seconds, ignoring leap seconds.
+   The body of this function is taken directly from the GNU C Library;
+   see src/strftime.c.  */
+static int
+tm_diff (struct tm const *a, struct tm const *b)
+{
+  /* Compute intervening leap days correctly even if year is negative.
+     Take care to avoid int overflow in leap day calculations,
+     but it's OK to assume that A and B are close to each other.  */
+  int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3);
+  int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3);
+  int a100 = a4 / 25 - (a4 % 25 < 0);
+  int b100 = b4 / 25 - (b4 % 25 < 0);
+  int a400 = a100 >> 2;
+  int b400 = b100 >> 2;
+  int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
+  int years = a->tm_year - b->tm_year;
+  int days = (365 * years + intervening_leap_days
+	      + (a->tm_yday - b->tm_yday));
+  return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
+		+ (a->tm_min - b->tm_min))
+	  + (a->tm_sec - b->tm_sec));
+}
+#endif /* ! HAVE_TM_GMTOFF */
+
+static table const *
+lookup_word (parser_control const *pc, char *word)
+{
+  char *p;
+  char *q;
+  size_t wordlen;
+  table const *tp;
+  int i;
+  int abbrev;
+
+  /* Make it uppercase.  */
+  for (p = word; *p; p++)
+    if (ISLOWER ((unsigned char) *p))
+      *p = toupper ((unsigned char) *p);
+
+  for (tp = meridian_table; tp->name; tp++)
+    if (strcmp (word, tp->name) == 0)
+      return tp;
+
+  /* See if we have an abbreviation for a month. */
+  wordlen = strlen (word);
+  abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.');
+
+  for (tp = month_and_day_table; tp->name; tp++)
+    if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0)
+      return tp;
+
+  if ((tp = lookup_zone (pc, word)))
+    return tp;
+
+  if (strcmp (word, dst_table[0].name) == 0)
+    return dst_table;
+
+  for (tp = time_units_table; tp->name; tp++)
+    if (strcmp (word, tp->name) == 0)
+      return tp;
+
+  /* Strip off any plural and try the units table again. */
+  if (word[wordlen - 1] == 'S')
+    {
+      word[wordlen - 1] = '\0';
+      for (tp = time_units_table; tp->name; tp++)
+	if (strcmp (word, tp->name) == 0)
+	  return tp;
+      word[wordlen - 1] = 'S';	/* For "this" in relative_time_table.  */
+    }
+
+  for (tp = relative_time_table; tp->name; tp++)
+    if (strcmp (word, tp->name) == 0)
+      return tp;
+
+  /* Military time zones. */
+  if (wordlen == 1)
+    for (tp = military_table; tp->name; tp++)
+      if (word[0] == tp->name[0])
+	return tp;
+
+  /* Drop out any periods and try the time zone table again. */
+  for (i = 0, p = q = word; (*p = *q); q++)
+    if (*q == '.')
+      i = 1;
+    else
+      p++;
+  if (i && (tp = lookup_zone (pc, word)))
+    return tp;
+
+  return 0;
+}
+
+static int
+yylex (YYSTYPE *lvalp, parser_control *pc)
+{
+  unsigned char c;
+  int count;
+
+  for (;;)
+    {
+      while (c = *pc->input, ISSPACE (c))
+	pc->input++;
+
+      if (ISDIGIT (c) || c == '-' || c == '+')
+	{
+	  char const *p;
+	  int sign;
+	  int value;
+	  if (c == '-' || c == '+')
+	    {
+	      sign = c == '-' ? -1 : 1;
+	      c = *++pc->input;
+	      if (! ISDIGIT (c))
+		/* skip the '-' sign */
+		continue;
+	    }
+	  else
+	    sign = 0;
+	  p = pc->input;
+	  value = 0;
+	  do
+	    {
+	      value = 10 * value + c - '0';
+	      c = *++p;
+	    }
+	  while (ISDIGIT (c));
+	  lvalp->textintval.value = sign < 0 ? -value : value;
+	  lvalp->textintval.digits = p - pc->input;
+	  pc->input = p;
+	  return sign ? tSNUMBER : tUNUMBER;
+	}
+
+      if (ISALPHA (c))
+	{
+	  char buff[20];
+	  char *p = buff;
+	  table const *tp;
+
+	  do
+	    {
+	      if (p < buff + sizeof buff - 1)
+		*p++ = c;
+	      c = *++pc->input;
+	    }
+	  while (ISALPHA (c) || c == '.');
+
+	  *p = '\0';
+	  tp = lookup_word (pc, buff);
+	  if (! tp)
+	    return '?';
+	  lvalp->intval = tp->value;
+	  return tp->type;
+	}
+
+      if (c != '(')
+	return *pc->input++;
+      count = 0;
+      do
+	{
+	  c = *pc->input++;
+	  if (c == '\0')
+	    return c;
+	  if (c == '(')
+	    count++;
+	  else if (c == ')')
+	    count--;
+	}
+      while (count > 0);
+    }
+}
+
+/* Do nothing if the parser reports an error.  */
+static int
+yyerror (char *s ATTRIBUTE_UNUSED)
+{
+  return 0;
+}
+
+/* Parse a date/time string P.  Return the corresponding time_t value,
+   or (time_t) -1 if there is an error.  P can be an incomplete or
+   relative time specification; if so, use *NOW as the basis for the
+   returned time.  */
+time_t
+get_date (const char *p, const time_t *now)
+{
+  time_t Start = now ? *now : time (0);
+  struct tm *tmp = localtime (&Start);
+  struct tm tm;
+  struct tm tm0;
+  parser_control pc;
+
+  if (! tmp)
+    return -1;
+
+  pc.input = p;
+  pc.year.value = tmp->tm_year + TM_YEAR_BASE;
+  pc.year.digits = 4;
+  pc.month = tmp->tm_mon + 1;
+  pc.day = tmp->tm_mday;
+  pc.hour = tmp->tm_hour;
+  pc.minutes = tmp->tm_min;
+  pc.seconds = tmp->tm_sec;
+  tm.tm_isdst = tmp->tm_isdst;
+
+  pc.meridian = MER24;
+  pc.rel_seconds = 0;
+  pc.rel_minutes = 0;
+  pc.rel_hour = 0;
+  pc.rel_day = 0;
+  pc.rel_month = 0;
+  pc.rel_year = 0;
+  pc.dates_seen = 0;
+  pc.days_seen = 0;
+  pc.rels_seen = 0;
+  pc.times_seen = 0;
+  pc.local_zones_seen = 0;
+  pc.zones_seen = 0;
+
+#if HAVE_STRUCT_TM_TM_ZONE
+  pc.local_time_zone_table[0].name = tmp->tm_zone;
+  pc.local_time_zone_table[0].type = tLOCAL_ZONE;
+  pc.local_time_zone_table[0].value = tmp->tm_isdst;
+  pc.local_time_zone_table[1].name = 0;
+
+  /* Probe the names used in the next three calendar quarters, looking
+     for a tm_isdst different from the one we already have.  */
+  {
+    int quarter;
+    for (quarter = 1; quarter <= 3; quarter++)
+      {
+	time_t probe = Start + quarter * (90 * 24 * 60 * 60);
+	struct tm *probe_tm = localtime (&probe);
+	if (probe_tm && probe_tm->tm_zone
+	    && probe_tm->tm_isdst != pc.local_time_zone_table[0].value)
+	  {
+	      {
+		pc.local_time_zone_table[1].name = probe_tm->tm_zone;
+		pc.local_time_zone_table[1].type = tLOCAL_ZONE;
+		pc.local_time_zone_table[1].value = probe_tm->tm_isdst;
+		pc.local_time_zone_table[2].name = 0;
+	      }
+	    break;
+	  }
+      }
+  }
+#else
+#if HAVE_TZNAME
+  {
+# ifndef tzname
+    extern char *tzname[];
+# endif
+    int i;
+    for (i = 0; i < 2; i++)
+      {
+	pc.local_time_zone_table[i].name = tzname[i];
+	pc.local_time_zone_table[i].type = tLOCAL_ZONE;
+	pc.local_time_zone_table[i].value = i;
+      }
+    pc.local_time_zone_table[i].name = 0;
+  }
+#else
+  pc.local_time_zone_table[0].name = 0;
+#endif
+#endif
+
+  if (pc.local_time_zone_table[0].name && pc.local_time_zone_table[1].name
+      && ! strcmp (pc.local_time_zone_table[0].name,
+		   pc.local_time_zone_table[1].name))
+    {
+      /* This locale uses the same abbrevation for standard and
+	 daylight times.  So if we see that abbreviation, we don't
+	 know whether it's daylight time.  */
+      pc.local_time_zone_table[0].value = -1;
+      pc.local_time_zone_table[1].name = 0;
+    }
+
+  if (yyparse (&pc) != 0
+      || 1 < pc.times_seen || 1 < pc.dates_seen || 1 < pc.days_seen
+      || 1 < (pc.local_zones_seen + pc.zones_seen)
+      || (pc.local_zones_seen && 1 < pc.local_isdst))
+    return -1;
+
+  tm.tm_year = to_year (pc.year) - TM_YEAR_BASE + pc.rel_year;
+  tm.tm_mon = pc.month - 1 + pc.rel_month;
+  tm.tm_mday = pc.day + pc.rel_day;
+  if (pc.times_seen || (pc.rels_seen && ! pc.dates_seen && ! pc.days_seen))
+    {
+      tm.tm_hour = to_hour (pc.hour, pc.meridian);
+      if (tm.tm_hour < 0)
+	return -1;
+      tm.tm_min = pc.minutes;
+      tm.tm_sec = pc.seconds;
+    }
+  else
+    {
+      tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
+    }
+
+  /* Let mktime deduce tm_isdst if we have an absolute time stamp,
+     or if the relative time stamp mentions days, months, or years.  */
+  if (pc.dates_seen | pc.days_seen | pc.times_seen | pc.rel_day
+      | pc.rel_month | pc.rel_year)
+    tm.tm_isdst = -1;
+
+  /* But if the input explicitly specifies local time with or without
+     DST, give mktime that information.  */
+  if (pc.local_zones_seen)
+    tm.tm_isdst = pc.local_isdst;
+
+  tm0 = tm;
+
+  Start = mktime (&tm);
+
+  if (Start == (time_t) -1)
+    {
+
+      /* Guard against falsely reporting errors near the time_t boundaries
+         when parsing times in other time zones.  For example, if the min
+         time_t value is 1970-01-01 00:00:00 UTC and we are 8 hours ahead
+         of UTC, then the min localtime value is 1970-01-01 08:00:00; if
+         we apply mktime to 1970-01-01 00:00:00 we will get an error, so
+         we apply mktime to 1970-01-02 08:00:00 instead and adjust the time
+         zone by 24 hours to compensate.  This algorithm assumes that
+         there is no DST transition within a day of the time_t boundaries.  */
+      if (pc.zones_seen)
+	{
+	  tm = tm0;
+	  if (tm.tm_year <= EPOCH_YEAR - TM_YEAR_BASE)
+	    {
+	      tm.tm_mday++;
+	      pc.time_zone += 24 * 60;
+	    }
+	  else
+	    {
+	      tm.tm_mday--;
+	      pc.time_zone -= 24 * 60;
+	    }
+	  Start = mktime (&tm);
+	}
+
+      if (Start == (time_t) -1)
+	return Start;
+    }
+
+  if (pc.days_seen && ! pc.dates_seen)
+    {
+      tm.tm_mday += ((pc.day_number - tm.tm_wday + 7) % 7
+		     + 7 * (pc.day_ordinal - (0 < pc.day_ordinal)));
+      tm.tm_isdst = -1;
+      Start = mktime (&tm);
+      if (Start == (time_t) -1)
+	return Start;
+    }
+
+  if (pc.zones_seen)
+    {
+      int delta = pc.time_zone * 60;
+#ifdef HAVE_TM_GMTOFF
+      delta -= tm.tm_gmtoff;
+#else
+      struct tm *gmt = gmtime (&Start);
+      if (! gmt)
+	return -1;
+      delta -= tm_diff (&tm, gmt);
+#endif
+      if ((Start < Start - delta) != (delta < 0))
+	return -1;	/* time_t overflow */
+      Start -= delta;
+    }
+
+  /* Add relative hours, minutes, and seconds.  Ignore leap seconds;
+     i.e. "+ 10 minutes" means 600 seconds, even if one of them is a
+     leap second.  Typically this is not what the user wants, but it's
+     too hard to do it the other way, because the time zone indicator
+     must be applied before relative times, and if mktime is applied
+     again the time zone will be lost.  */
+  {
+    time_t t0 = Start;
+    long d1 = 60 * 60 * (long) pc.rel_hour;
+    time_t t1 = t0 + d1;
+    long d2 = 60 * (long) pc.rel_minutes;
+    time_t t2 = t1 + d2;
+    int d3 = pc.rel_seconds;
+    time_t t3 = t2 + d3;
+    if ((d1 / (60 * 60) ^ pc.rel_hour)
+	| (d2 / 60 ^ pc.rel_minutes)
+	| ((t0 + d1 < t0) ^ (d1 < 0))
+	| ((t1 + d2 < t1) ^ (d2 < 0))
+	| ((t2 + d3 < t2) ^ (d3 < 0)))
+      return -1;
+    Start = t3;
+  }
+
+  return Start;
+}
+
+#if TEST
+
+#include <stdio.h>
+
+int
+main (int ac, char **av)
+{
+  char buff[BUFSIZ];
+  time_t d;
+
+  printf ("Enter date, or blank line to exit.\n\t> ");
+  fflush (stdout);
+
+  buff[BUFSIZ - 1] = 0;
+  while (fgets (buff, BUFSIZ - 1, stdin) && buff[0])
+    {
+      d = get_date (buff, 0);
+      if (d == (time_t) -1)
+	printf ("Bad format - couldn't convert.\n");
+      else
+	printf ("%s", ctime (&d));
+      printf ("\t> ");
+      fflush (stdout);
+    }
+  return 0;
+}
+#endif /* defined TEST */
+
+