+/* Parse dates for touch and date.
-/* A Bison parser, made from ./posixtm.y with Bison version GNU Bison version 1.22
- */
+ Copyright (C) 1989-1991, 1998, 2000-2013 Free Software Foundation, Inc.
-#define YYBISON 1 /* Identify Bison output. */
-
-#define DIGIT 258
-
-#line 19 "./posixtm.y"
-
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/* The following block of alloca-related preprocessor directives is here
- solely to allow compilation by non GNU-C compilers of the C parser
- produced from this file by old versions of bison. Newer versions of
- bison include a block similar to this one in bison.simple. */
-
-#ifdef __GNUC__
-#define alloca __builtin_alloca
-#else
-#ifdef HAVE_ALLOCA_H
-#include <alloca.h>
-#else
-#ifdef _AIX
- #pragma alloca
-#else
-void *alloca ();
-#endif
-#endif
-#endif
-
-#include <stdio.h>
-#include <sys/types.h>
-
-#ifdef TM_IN_SYS_TIME
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-
-/* Some old versions of bison generate parsers that use bcopy.
- That loses on systems that don't provide the function, so we have
- to redefine it here. */
-#if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy)
-#define bcopy(from, to, len) memcpy ((to), (from), (len))
-#endif
-
-#define YYDEBUG 1
-
-/* Lexical analyzer's current scan position in the input string. */
-static char *curpos;
-
-/* The return value. */
-static struct tm t;
-
-time_t mktime ();
-
-#define zzparse posixtime_zzparse
-static int zzlex ();
-static int zzerror ();
-
-#ifndef YYLTYPE
-typedef
- struct zzltype
- {
- int timestamp;
- int first_line;
- int first_column;
- int last_line;
- int last_column;
- char *text;
- }
- zzltype;
-
-#define YYLTYPE zzltype
-#endif
-
-#ifndef YYSTYPE
-#define YYSTYPE int
-#endif
-#include <stdio.h>
-
-#ifndef __cplusplus
-#ifndef __STDC__
-#define const
-#endif
-#endif
-
-
-
-#define YYFINAL 15
-#define YYFLAG -32768
-#define YYNTBASE 5
-
-#define YYTRANSLATE(x) ((unsigned)(x) <= 258 ? zztranslate[x] : 9)
-
-static const char zztranslate[] = { 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, 2, 2, 4, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 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
-};
-
-#if YYDEBUG != 0
-static const short zzprhs[] = { 0,
- 0, 7, 9, 12, 13, 14, 17
-};
-
-static const short zzrhs[] = { 8,
- 8, 8, 8, 6, 7, 0, 8, 0, 8, 8,
- 0, 0, 0, 4, 8, 0, 3, 3, 0
-};
-
-#endif
-
-#if YYDEBUG != 0
-static const short zzrline[] = { 0,
- 78, 107, 114, 121, 132, 135, 144
-};
-
-static const char * const zztname[] = { "$","error","$illegal.","DIGIT","'.'",
-"date","year","seconds","digitpair",""
-};
-#endif
-
-static const short zzr1[] = { 0,
- 5, 6, 6, 6, 7, 7, 8
-};
-
-static const short zzr2[] = { 0,
- 6, 1, 2, 0, 0, 2, 2
-};
-
-static const short zzdefact[] = { 0,
- 0, 0, 7, 0, 0, 4, 5, 2, 0, 1,
- 3, 6, 0, 0, 0
-};
-
-static const short zzdefgoto[] = { 13,
- 7, 10, 2
-};
-
-static const short zzpact[] = { 2,
- 5, 2,-32768, 2, 2, 2, -3, 2, 2,-32768,
--32768,-32768, 9, 10,-32768
-};
-
-static const short zzpgoto[] = {-32768,
--32768,-32768, -2
-};
-
-
-#define YYLAST 10
-
-
-static const short zztable[] = { 4,
- 9, 5, 6, 8, 1, 11, 12, 3, 14, 15
-};
-
-static const short zzcheck[] = { 2,
- 4, 4, 5, 6, 3, 8, 9, 3, 0, 0
-};
-/* -*-C-*- Note some compilers choke on comments on `#line' lines. */
-#line 3 "/usr/local/lib/bison.simple"
-
-/* Skeleton output parser for bison,
- Copyright (C) 1984, 1989, 1990 Bob Corbett and Richard Stallman
-
- This program is free software; you can redistribute it and/or modify
+ 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 1, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, 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
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
-#ifndef alloca
-#ifdef __GNUC__
-#define alloca __builtin_alloca
-#else /* not GNU C. */
-#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi)
-#include <alloca.h>
-#else /* not sparc */
-#if defined (MSDOS) && !defined (__TURBOC__)
-#include <malloc.h>
-#else /* not MSDOS, or __TURBOC__ */
-#if defined(_AIX)
-#include <malloc.h>
- #pragma alloca
-#else /* not MSDOS, __TURBOC__, or _AIX */
-#ifdef __hpux
-#ifdef __cplusplus
-extern "C" {
-void *alloca (unsigned int);
-};
-#else /* not __cplusplus */
-void *alloca ();
-#endif /* not __cplusplus */
-#endif /* __hpux */
-#endif /* not _AIX */
-#endif /* not MSDOS, or __TURBOC__ */
-#endif /* not sparc. */
-#endif /* not GNU C. */
-#endif /* alloca not defined. */
-
-/* This is the parser code that is written into each bison parser
- when the %semantic_parser declaration is not specified in the grammar.
- It was written by Richard Stallman by simplifying the hairy parser
- used when %semantic_parser is specified. */
-
-/* Note: there must be only one dollar sign in this file.
- It is replaced by the list of actions, each action
- as one case of the switch. */
-
-#define zzerrok (zzerrstatus = 0)
-#define zzclearin (zzchar = YYEMPTY)
-#define YYEMPTY -2
-#define YYEOF 0
-#define YYACCEPT return(0)
-#define YYABORT return(1)
-#define YYERROR goto zzerrlab1
-/* Like YYERROR except do call zzerror.
- 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 zzerrlab
-#define YYRECOVERING() (!!zzerrstatus)
-#define YYBACKUP(token, value) \
-do \
- if (zzchar == YYEMPTY && zzlen == 1) \
- { zzchar = (token), zzlval = (value); \
- zzchar1 = YYTRANSLATE (zzchar); \
- YYPOPSTACK; \
- goto zzbackup; \
- } \
- else \
- { zzerror ("syntax error: cannot back up"); YYERROR; } \
-while (0)
-
-#define YYTERROR 1
-#define YYERRCODE 256
-
-#ifndef YYPURE
-#define YYLEX zzlex()
-#endif
-
-#ifdef YYPURE
-#ifdef YYLSP_NEEDED
-#define YYLEX zzlex(&zzlval, &zzlloc)
-#else
-#define YYLEX zzlex(&zzlval)
-#endif
-#endif
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-/* If nonreentrant, generate the variables here */
+/* Yacc-based version written by Jim Kingdon and David MacKenzie.
+ Rewritten by Jim Meyering. */
-#ifndef YYPURE
-
-int zzchar; /* the lookahead symbol */
-YYSTYPE zzlval; /* the semantic value of the */
- /* lookahead symbol */
-
-#ifdef YYLSP_NEEDED
-YYLTYPE zzlloc; /* location data for the lookahead */
- /* symbol */
-#endif
-
-int zznerrs; /* number of parse errors so far */
-#endif /* not YYPURE */
+#include <config.h>
-#if YYDEBUG != 0
-int zzdebug; /* nonzero means print parse trace */
-/* Since this is uninitialized, it does not stop multiple parsers
- from coexisting. */
-#endif
+#include "posixtm.h"
-/* YYINITDEPTH indicates the initial size of the parser's stacks */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <string.h>
-#ifndef YYINITDEPTH
-#define YYINITDEPTH 200
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
#endif
-/* YYMAXDEPTH is the maximum size the stacks can grow to
- (effective only if the built-in stack extension method is used). */
+/* ISDIGIT differs from isdigit, as follows:
+ - Its arg may be any int or unsigned int; it need not be an unsigned char
+ or EOF.
+ - It's typically faster.
+ POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
+ isdigit 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 int) (c) - '0' <= 9)
-#if YYMAXDEPTH == 0
-#undef YYMAXDEPTH
-#endif
+/*
+ POSIX requires:
-#ifndef YYMAXDEPTH
-#define YYMAXDEPTH 10000
-#endif
+ touch -t [[CC]YY]mmddhhmm[.ss] FILE...
+ 8, 10, or 12 digits, followed by optional .ss
+ (PDS_LEADING_YEAR | PDS_CENTURY | PDS_SECONDS)
-/* Prevent warning if -Wstrict-prototypes. */
-#ifdef __GNUC__
-int zzparse (void);
-#endif
-\f
-#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
-#define __zz_bcopy(FROM,TO,COUNT) __builtin_memcpy(TO,FROM,COUNT)
-#else /* not GNU C or C++ */
-#ifndef __cplusplus
-
-/* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
-static void
-__zz_bcopy (from, to, count)
- char *from;
- char *to;
- int count;
-{
- register char *f = from;
- register char *t = to;
- register int i = count;
+ touch mmddhhmm[YY] FILE... (obsoleted by POSIX 1003.1-2001)
+ 8 or 10 digits, YY (if present) must be in the range 69-99
+ (PDS_TRAILING_YEAR | PDS_PRE_2000)
- while (i-- > 0)
- *t++ = *f++;
-}
+ date mmddhhmm[[CC]YY]
+ 8, 10, or 12 digits
+ (PDS_TRAILING_YEAR | PDS_CENTURY)
-#else /* __cplusplus */
+*/
-/* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
-static void
-__zz_bcopy (char *from, char *to, int count)
+static int
+year (struct tm *tm, const int *digit_pair, size_t n, unsigned int syntax_bits)
{
- register char *f = from;
- register char *t = to;
- register int i = count;
+ switch (n)
+ {
+ case 1:
+ tm->tm_year = *digit_pair;
+ /* Deduce the century based on the year.
+ POSIX requires that 00-68 be interpreted as 2000-2068,
+ and that 69-99 be interpreted as 1969-1999. */
+ if (digit_pair[0] <= 68)
+ {
+ if (syntax_bits & PDS_PRE_2000)
+ return 1;
+ tm->tm_year += 100;
+ }
+ break;
+
+ case 2:
+ if (! (syntax_bits & PDS_CENTURY))
+ return 1;
+ tm->tm_year = digit_pair[0] * 100 + digit_pair[1] - 1900;
+ break;
+
+ case 0:
+ {
+ time_t now;
+ struct tm *tmp;
+
+ /* Use current year. */
+ time (&now);
+ tmp = localtime (&now);
+ if (! tmp)
+ return 1;
+ tm->tm_year = tmp->tm_year;
+ }
+ break;
+
+ default:
+ abort ();
+ }
- while (i-- > 0)
- *t++ = *f++;
+ return 0;
}
-#endif
-#endif
-\f
-#line 184 "/usr/local/lib/bison.simple"
-int
-zzparse()
+static int
+posix_time_parse (struct tm *tm, const char *s, unsigned int syntax_bits)
{
- register int zzstate;
- register int zzn;
- register short *zzssp;
- register YYSTYPE *zzvsp;
- int zzerrstatus; /* number of tokens to shift before error messages enabled */
- int zzchar1 = 0; /* lookahead token as an internal (translated) token number */
-
- short zzssa[YYINITDEPTH]; /* the state stack */
- YYSTYPE zzvsa[YYINITDEPTH]; /* the semantic value stack */
-
- short *zzss = zzssa; /* refer to the stacks thru separate pointers */
- YYSTYPE *zzvs = zzvsa; /* to allow zzoverflow to reallocate them elsewhere */
-
-#ifdef YYLSP_NEEDED
- YYLTYPE zzlsa[YYINITDEPTH]; /* the location stack */
- YYLTYPE *zzls = zzlsa;
- YYLTYPE *zzlsp;
-
-#define YYPOPSTACK (zzvsp--, zzssp--, zzlsp--)
-#else
-#define YYPOPSTACK (zzvsp--, zzssp--)
-#endif
-
- int zzstacksize = YYINITDEPTH;
+ const char *dot = NULL;
+ int pair[6];
+ int *p;
+ size_t i;
-#ifdef YYPURE
- int zzchar;
- YYSTYPE zzlval;
- int zznerrs;
-#ifdef YYLSP_NEEDED
- YYLTYPE zzlloc;
-#endif
-#endif
-
- YYSTYPE zzval; /* the variable used to return */
- /* semantic values from the action */
- /* routines */
-
- int zzlen;
-
-#if YYDEBUG != 0
- if (zzdebug)
- fprintf(stderr, "Starting parse\n");
-#endif
-
- zzstate = 0;
- zzerrstatus = 0;
- zznerrs = 0;
- zzchar = YYEMPTY; /* Cause a token to be read. */
+ size_t s_len = strlen (s);
+ size_t len = (((syntax_bits & PDS_SECONDS) && (dot = strchr (s, '.')))
+ ? (size_t) (dot - s)
+ : s_len);
- /* 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. */
+ if (len != 8 && len != 10 && len != 12)
+ return 1;
- zzssp = zzss - 1;
- zzvsp = zzvs;
-#ifdef YYLSP_NEEDED
- zzlsp = zzls;
-#endif
-
-/* Push a new state, which is found in zzstate . */
-/* In all cases, when you get here, the value and location stacks
- have just been pushed. so pushing a state here evens the stacks. */
-zznewstate:
-
- *++zzssp = zzstate;
-
- if (zzssp >= zzss + zzstacksize - 1)
+ if (dot)
{
- /* 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 *zzvs1 = zzvs;
- short *zzss1 = zzss;
-#ifdef YYLSP_NEEDED
- YYLTYPE *zzls1 = zzls;
-#endif
-
- /* Get the current used size of the three stacks, in elements. */
- int size = zzssp - zzss + 1;
-
-#ifdef zzoverflow
- /* Each stack pointer address is followed by the size of
- the data in use in that stack, in bytes. */
-#ifdef YYLSP_NEEDED
- /* This used to be a conditional around just the two extra args,
- but that might be undefined if zzoverflow is a macro. */
- zzoverflow("parser stack overflow",
- &zzss1, size * sizeof (*zzssp),
- &zzvs1, size * sizeof (*zzvsp),
- &zzls1, size * sizeof (*zzlsp),
- &zzstacksize);
-#else
- zzoverflow("parser stack overflow",
- &zzss1, size * sizeof (*zzssp),
- &zzvs1, size * sizeof (*zzvsp),
- &zzstacksize);
-#endif
-
- zzss = zzss1; zzvs = zzvs1;
-#ifdef YYLSP_NEEDED
- zzls = zzls1;
-#endif
-#else /* no zzoverflow */
- /* Extend the stack our own way. */
- if (zzstacksize >= YYMAXDEPTH)
- {
- zzerror("parser stack overflow");
- return 2;
- }
- zzstacksize *= 2;
- if (zzstacksize > YYMAXDEPTH)
- zzstacksize = YYMAXDEPTH;
- zzss = (short *) alloca (zzstacksize * sizeof (*zzssp));
- __zz_bcopy ((char *)zzss1, (char *)zzss, size * sizeof (*zzssp));
- zzvs = (YYSTYPE *) alloca (zzstacksize * sizeof (*zzvsp));
- __zz_bcopy ((char *)zzvs1, (char *)zzvs, size * sizeof (*zzvsp));
-#ifdef YYLSP_NEEDED
- zzls = (YYLTYPE *) alloca (zzstacksize * sizeof (*zzlsp));
- __zz_bcopy ((char *)zzls1, (char *)zzls, size * sizeof (*zzlsp));
-#endif
-#endif /* no zzoverflow */
+ if (!(syntax_bits & PDS_SECONDS))
+ return 1;
- zzssp = zzss + size - 1;
- zzvsp = zzvs + size - 1;
-#ifdef YYLSP_NEEDED
- zzlsp = zzls + size - 1;
-#endif
-
-#if YYDEBUG != 0
- if (zzdebug)
- fprintf(stderr, "Stack size increased to %d\n", zzstacksize);
-#endif
-
- if (zzssp >= zzss + zzstacksize - 1)
- YYABORT;
+ if (s_len - len != 3)
+ return 1;
}
-#if YYDEBUG != 0
- if (zzdebug)
- fprintf(stderr, "Entering state %d\n", zzstate);
-#endif
-
- goto zzbackup;
- zzbackup:
-
-/* Do appropriate processing given the current state. */
-/* Read a lookahead token if we need one and don't already have one. */
-/* zzresume: */
-
- /* First try to decide what to do without reference to lookahead token. */
-
- zzn = zzpact[zzstate];
- if (zzn == YYFLAG)
- goto zzdefault;
+ for (i = 0; i < len; i++)
+ if (!ISDIGIT (s[i]))
+ return 1;
- /* Not known => get a lookahead token if don't already have one. */
+ len /= 2;
+ for (i = 0; i < len; i++)
+ pair[i] = 10 * (s[2*i] - '0') + s[2*i + 1] - '0';
- /* zzchar is either YYEMPTY or YYEOF
- or a valid token in external form. */
-
- if (zzchar == YYEMPTY)
+ p = pair;
+ if (syntax_bits & PDS_LEADING_YEAR)
{
-#if YYDEBUG != 0
- if (zzdebug)
- fprintf(stderr, "Reading a token: ");
-#endif
- zzchar = YYLEX;
+ if (year (tm, p, len - 4, syntax_bits))
+ return 1;
+ p += len - 4;
+ len = 4;
}
- /* Convert token to internal form (in zzchar1) for indexing tables with */
+ /* Handle 8 digits worth of 'MMDDhhmm'. */
+ tm->tm_mon = *p++ - 1;
+ tm->tm_mday = *p++;
+ tm->tm_hour = *p++;
+ tm->tm_min = *p++;
+ len -= 4;
- if (zzchar <= 0) /* This means end of input. */
+ /* Handle any trailing year. */
+ if (syntax_bits & PDS_TRAILING_YEAR)
{
- zzchar1 = 0;
- zzchar = YYEOF; /* Don't call YYLEX any more */
-
-#if YYDEBUG != 0
- if (zzdebug)
- fprintf(stderr, "Now at end of input.\n");
-#endif
+ if (year (tm, p, len, syntax_bits))
+ return 1;
}
- else
- {
- zzchar1 = YYTRANSLATE(zzchar);
-
-#if YYDEBUG != 0
- if (zzdebug)
- {
- fprintf (stderr, "Next token is %d (%s", zzchar, zztname[zzchar1]);
- /* Give the individual parser a way to print the precise meaning
- of a token, for further debugging info. */
-#ifdef YYPRINT
- YYPRINT (stderr, zzchar, zzlval);
-#endif
- fprintf (stderr, ")\n");
- }
-#endif
- }
-
- zzn += zzchar1;
- if (zzn < 0 || zzn > YYLAST || zzcheck[zzn] != zzchar1)
- goto zzdefault;
- zzn = zztable[zzn];
-
- /* zzn is what to do for this token type in this state.
- Negative => reduce, -zzn is rule number.
- Positive => shift, zzn is new state.
- New state is final state => don't bother to shift,
- just return success.
- 0, or most negative number => error. */
-
- if (zzn < 0)
+ /* Handle seconds. */
+ if (!dot)
{
- if (zzn == YYFLAG)
- goto zzerrlab;
- zzn = -zzn;
- goto zzreduce;
+ tm->tm_sec = 0;
}
- else if (zzn == 0)
- goto zzerrlab;
-
- if (zzn == YYFINAL)
- YYACCEPT;
-
- /* Shift the lookahead token. */
-
-#if YYDEBUG != 0
- if (zzdebug)
- fprintf(stderr, "Shifting token %d (%s), ", zzchar, zztname[zzchar1]);
-#endif
-
- /* Discard the token being shifted unless it is eof. */
- if (zzchar != YYEOF)
- zzchar = YYEMPTY;
-
- *++zzvsp = zzlval;
-#ifdef YYLSP_NEEDED
- *++zzlsp = zzlloc;
-#endif
-
- /* count tokens shifted since error; after three, turn off error status. */
- if (zzerrstatus) zzerrstatus--;
-
- zzstate = zzn;
- goto zznewstate;
-
-/* Do the default action for the current state. */
-zzdefault:
-
- zzn = zzdefact[zzstate];
- if (zzn == 0)
- goto zzerrlab;
-
-/* Do a reduction. zzn is the number of a rule to reduce with. */
-zzreduce:
- zzlen = zzr2[zzn];
- if (zzlen > 0)
- zzval = zzvsp[1-zzlen]; /* implement default value of the action */
-
-#if YYDEBUG != 0
- if (zzdebug)
+ else
{
- int i;
+ int seconds;
- fprintf (stderr, "Reducing via rule %d (line %d), ",
- zzn, zzrline[zzn]);
+ ++dot;
+ if (!ISDIGIT (dot[0]) || !ISDIGIT (dot[1]))
+ return 1;
+ seconds = 10 * (dot[0] - '0') + dot[1] - '0';
- /* Print the symbols being reduced, and their result. */
- for (i = zzprhs[zzn]; zzrhs[i] > 0; i++)
- fprintf (stderr, "%s ", zztname[zzrhs[i]]);
- fprintf (stderr, " -> %s\n", zztname[zzr1[zzn]]);
+ tm->tm_sec = seconds;
}
-#endif
+ return 0;
+}
- switch (zzn) {
+/* Parse a POSIX-style date, returning true if successful. */
-case 1:
-#line 84 "./posixtm.y"
-{
- if (zzvsp[-5] >= 1 && zzvsp[-5] <= 12)
- t.tm_mon = zzvsp[-5] - 1;
- else {
- YYABORT;
- }
- if (zzvsp[-4] >= 1 && zzvsp[-4] <= 31)
- t.tm_mday = zzvsp[-4];
- else {
- YYABORT;
- }
- if (zzvsp[-3] >= 0 && zzvsp[-3] <= 23)
- t.tm_hour = zzvsp[-3];
- else {
- YYABORT;
- }
- if (zzvsp[-2] >= 0 && zzvsp[-2] <= 59)
- t.tm_min = zzvsp[-2];
- else {
- YYABORT;
- }
- ;
- break;}
-case 2:
-#line 107 "./posixtm.y"
-{
- t.tm_year = zzvsp[0];
- /* Deduce the century based on the year.
- See POSIX.2 section 4.63.3. */
- if (zzvsp[0] <= 68)
- t.tm_year += 100;
- ;
- break;}
-case 3:
-#line 114 "./posixtm.y"
-{
- t.tm_year = zzvsp[-1] * 100 + zzvsp[0];
- if (t.tm_year < 1900) {
- YYABORT;
- } else
- t.tm_year -= 1900;
- ;
- break;}
-case 4:
-#line 121 "./posixtm.y"
-{
- time_t now;
- struct tm *tmp;
-
- /* Use current year. */
- time (&now);
- tmp = localtime (&now);
- t.tm_year = tmp->tm_year;
- ;
- break;}
-case 5:
-#line 132 "./posixtm.y"
+bool
+posixtime (time_t *p, const char *s, unsigned int syntax_bits)
{
- t.tm_sec = 0;
- ;
- break;}
-case 6:
-#line 135 "./posixtm.y"
-{
- if (zzvsp[0] >= 0 && zzvsp[0] <= 61)
- t.tm_sec = zzvsp[0];
- else {
- YYABORT;
- }
- ;
- break;}
-case 7:
-#line 144 "./posixtm.y"
-{
- zzval = zzvsp[-1] * 10 + zzvsp[0];
- ;
- break;}
-}
- /* the action file gets copied in in place of this dollarsign */
-#line 465 "/usr/local/lib/bison.simple"
-\f
- zzvsp -= zzlen;
- zzssp -= zzlen;
-#ifdef YYLSP_NEEDED
- zzlsp -= zzlen;
-#endif
+ struct tm tm0;
+ struct tm tm1;
+ struct tm const *tm;
+ time_t t;
-#if YYDEBUG != 0
- if (zzdebug)
- {
- short *ssp1 = zzss - 1;
- fprintf (stderr, "state stack now");
- while (ssp1 != zzssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
-#endif
+ if (posix_time_parse (&tm0, s, syntax_bits))
+ return false;
- *++zzvsp = zzval;
+ tm1 = tm0;
+ tm1.tm_isdst = -1;
+ t = mktime (&tm1);
-#ifdef YYLSP_NEEDED
- zzlsp++;
- if (zzlen == 0)
- {
- zzlsp->first_line = zzlloc.first_line;
- zzlsp->first_column = zzlloc.first_column;
- zzlsp->last_line = (zzlsp-1)->last_line;
- zzlsp->last_column = (zzlsp-1)->last_column;
- zzlsp->text = 0;
- }
+ if (t != (time_t) -1)
+ tm = &tm1;
else
{
- zzlsp->last_line = (zzlsp+zzlen-1)->last_line;
- zzlsp->last_column = (zzlsp+zzlen-1)->last_column;
+ /* mktime returns -1 for errors, but -1 is also a valid time_t
+ value. Check whether an error really occurred. */
+ tm = localtime (&t);
+ if (! tm)
+ return false;
}
-#endif
- /* 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. */
-
- zzn = zzr1[zzn];
-
- zzstate = zzpgoto[zzn - YYNTBASE] + *zzssp;
- if (zzstate >= 0 && zzstate <= YYLAST && zzcheck[zzstate] == *zzssp)
- zzstate = zztable[zzstate];
- else
- zzstate = zzdefgoto[zzn - YYNTBASE];
-
- goto zznewstate;
-
-zzerrlab: /* here on detecting error */
-
- if (! zzerrstatus)
- /* If not already recovering from an error, report this error. */
+ /* Reject dates like "September 31" and times like "25:61".
+ Do not reject times that specify "60" as the number of seconds. */
+ if ((tm0.tm_year ^ tm->tm_year)
+ | (tm0.tm_mon ^ tm->tm_mon)
+ | (tm0.tm_mday ^ tm->tm_mday)
+ | (tm0.tm_hour ^ tm->tm_hour)
+ | (tm0.tm_min ^ tm->tm_min)
+ | (tm0.tm_sec ^ tm->tm_sec))
{
- ++zznerrs;
-
-#ifdef YYERROR_VERBOSE
- zzn = zzpact[zzstate];
-
- if (zzn > YYFLAG && zzn < YYLAST)
- {
- int size = 0;
- char *msg;
- int x, count;
-
- count = 0;
- /* Start X at -zzn if nec to avoid negative indexes in zzcheck. */
- for (x = (zzn < 0 ? -zzn : 0);
- x < (sizeof(zztname) / sizeof(char *)); x++)
- if (zzcheck[x + zzn] == x)
- size += strlen(zztname[x]) + 15, count++;
- msg = (char *) malloc(size + 15);
- if (msg != 0)
- {
- strcpy(msg, "parse error");
-
- if (count < 5)
- {
- count = 0;
- for (x = (zzn < 0 ? -zzn : 0);
- x < (sizeof(zztname) / sizeof(char *)); x++)
- if (zzcheck[x + zzn] == x)
- {
- strcat(msg, count == 0 ? ", expecting `" : " or `");
- strcat(msg, zztname[x]);
- strcat(msg, "'");
- count++;
- }
- }
- zzerror(msg);
- free(msg);
- }
- else
- zzerror ("parse error; also virtual memory exceeded");
- }
- else
-#endif /* YYERROR_VERBOSE */
- zzerror("parse error");
+ /* Any mismatch without 60 in the tm_sec field is invalid. */
+ if (tm0.tm_sec != 60)
+ return false;
+
+ {
+ /* Allow times like 01:35:60 or 23:59:60. */
+ time_t dummy;
+ char buf[16];
+ char *b = stpcpy (buf, s);
+ strcpy (b - 2, "59");
+ if (!posixtime (&dummy, buf, syntax_bits))
+ return false;
+ }
}
- goto zzerrlab1;
-zzerrlab1: /* here on error raised explicitly by an action */
-
- if (zzerrstatus == 3)
- {
- /* if just tried and failed to reuse lookahead token after an error, discard it. */
-
- /* return failure if at end of input */
- if (zzchar == YYEOF)
- YYABORT;
-
-#if YYDEBUG != 0
- if (zzdebug)
- fprintf(stderr, "Discarding token %d (%s).\n", zzchar, zztname[zzchar1]);
-#endif
-
- zzchar = YYEMPTY;
- }
-
- /* Else will try to reuse lookahead token
- after shifting the error token. */
-
- zzerrstatus = 3; /* Each real token shifted decrements this */
-
- goto zzerrhandle;
-
-zzerrdefault: /* current state does not do anything special for the error token. */
-
-#if 0
- /* This is wrong; only states that explicitly want error tokens
- should shift them. */
- zzn = zzdefact[zzstate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
- if (zzn) goto zzdefault;
-#endif
-
-zzerrpop: /* pop the current state because it cannot handle the error token */
-
- if (zzssp == zzss) YYABORT;
- zzvsp--;
- zzstate = *--zzssp;
-#ifdef YYLSP_NEEDED
- zzlsp--;
-#endif
-
-#if YYDEBUG != 0
- if (zzdebug)
- {
- short *ssp1 = zzss - 1;
- fprintf (stderr, "Error: state stack now");
- while (ssp1 != zzssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
-#endif
-
-zzerrhandle:
-
- zzn = zzpact[zzstate];
- if (zzn == YYFLAG)
- goto zzerrdefault;
-
- zzn += YYTERROR;
- if (zzn < 0 || zzn > YYLAST || zzcheck[zzn] != YYTERROR)
- goto zzerrdefault;
-
- zzn = zztable[zzn];
- if (zzn < 0)
- {
- if (zzn == YYFLAG)
- goto zzerrpop;
- zzn = -zzn;
- goto zzreduce;
- }
- else if (zzn == 0)
- goto zzerrpop;
-
- if (zzn == YYFINAL)
- YYACCEPT;
-
-#if YYDEBUG != 0
- if (zzdebug)
- fprintf(stderr, "Shifting error token, ");
-#endif
-
- *++zzvsp = zzlval;
-#ifdef YYLSP_NEEDED
- *++zzlsp = zzlloc;
-#endif
-
- zzstate = zzn;
- goto zznewstate;
-}
-#line 148 "./posixtm.y"
-
-static int
-zzlex ()
-{
- char ch = *curpos++;
-
- if (ch >= '0' && ch <= '9')
- {
- zzlval = ch - '0';
- return DIGIT;
- }
- else if (ch == '.' || ch == 0)
- return ch;
- else
- return '?'; /* Cause an error. */
-}
-
-static int
-zzerror ()
-{
- return 0;
-}
-
-/* Parse a POSIX-style date and return it, or (time_t)-1 for an error. */
-
-time_t
-posixtime (s)
- char *s;
-{
- curpos = s;
- /* Let mktime decide whether it is daylight savings time. */
- t.tm_isdst = -1;
- if (zzparse ())
- return (time_t)-1;
- else
- return mktime (&t);
-}
-
-/* Parse a POSIX-style date and return it, or NULL for an error. */
-
-struct tm *
-posixtm (s)
- char *s;
-{
- if (posixtime (s) == -1)
- return NULL;
- return &t;
+ *p = t;
+ return true;
}
projects / gnulib.git / blobdiff