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-
- /* A Bison parser, made from getdate.y */
-
- #define ID 258
- #define MONTH 259
- #define DAY 260
- #define MERIDIAN 261
- #define NUMBER 262
- #define UNIT 263
- #define MUNIT 264
- #define SUNIT 265
- #define ZONE 266
- #define DAYZONE 267
- #define AGO 268
-
- #line 2 "getdate.y"
-
- /* Steven M. Bellovin (unc!smb) */
- /* Dept. of Computer Science */
- /* University of North Carolina at Chapel Hill */
- /* @(#)getdate.y 2.13 9/16/86 */
-
- #include <sys/types.h>
- #include <ctype.h>
- #include <time.h>
-
- #ifndef NULL
- #define NULL 0
- #endif
-
- #define daysec (24L*60L*60L)
-
- static int timeflag, zoneflag, dateflag, dayflag, relflag;
- static time_t relsec, relmonth;
- static int hh, mm, ss, merid, daylite;
- static int dayord, dayreq;
- static int month, day, year;
- static int ourzone;
-
- #define AM 1
- #define PM 2
- #define DAYLIGHT 1
- #define STANDARD 2
- #define MAYBE 3
-
- #ifndef YYLTYPE
- typedef
- struct yyltype
- {
- int timestamp;
- int first_line;
- int first_column;
- int last_line;
- int last_column;
- char *text;
- }
- yyltype;
-
- #define YYLTYPE yyltype
- #endif
-
- #ifndef YYSTYPE
- #define YYSTYPE int
- #endif
- #include <stdio.h>
-
- #ifndef __STDC__
- #define const
- #endif
-
-
-
- #define YYFINAL 42
- #define YYFLAG -32768
- #define YYNTBASE 17
-
- #define YYTRANSLATE(x) ((unsigned)(x) <= 268 ? yytranslate[x] : 25)
-
- static const 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, 15, 2, 2, 16, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 14, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 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
- };
-
- #if YYDEBUG != 0
- static const short yyrline[] = { 0,
- 31, 32, 34, 36, 38, 40, 42, 44, 46, 50,
- 52, 54, 56, 59, 61, 63, 67, 69, 72, 74,
- 76, 79, 81, 83, 85, 87, 89, 93, 95, 97,
- 99, 101, 103, 105
- };
-
- static const char * const yytname[] = { 0,
- "error","$illegal.","ID","MONTH","DAY","MERIDIAN","NUMBER","UNIT","MUNIT","SUNIT",
- "ZONE","DAYZONE","AGO","':'","','","'/'","timedate"
- };
- #endif
-
- static const short yyr1[] = { 0,
- 17, 17, 18, 18, 18, 18, 18, 18, 19, 20,
- 20, 20, 20, 20, 20, 20, 21, 21, 22, 22,
- 22, 23, 23, 23, 23, 23, 23, 24, 24, 24,
- 24, 24, 24, 24
- };
-
- static const short yyr2[] = { 0,
- 0, 2, 1, 1, 1, 1, 1, 1, 1, 2,
- 3, 4, 4, 5, 6, 6, 1, 1, 1, 2,
- 2, 3, 5, 2, 4, 2, 3, 2, 2, 2,
- 1, 1, 1, 2
- };
-
- static const short yydefact[] = { 1,
- 0, 0, 19, 9, 31, 32, 33, 17, 18, 2,
- 8, 3, 4, 6, 5, 7, 24, 20, 26, 21,
- 10, 28, 29, 30, 0, 0, 34, 0, 27, 11,
- 22, 25, 12, 13, 0, 0, 14, 23, 15, 16,
- 0, 0
- };
-
- static const short yydefgoto[] = { 1,
- 10, 11, 12, 13, 14, 15, 16
- };
-
- static const short yypact[] = {-32768,
- 0, -4, -9, 9,-32768,-32768,-32768,-32768,-32768,-32768,
- -32768,-32768,-32768,-32768,-32768, 3, 7,-32768, 17,-32768,
- -32768,-32768,-32768,-32768, 19, 20,-32768, 22,-32768, 14,
- 15,-32768,-32768,-32768, 23, 25, -5,-32768,-32768,-32768,
- 33,-32768
- };
-
- static const short yypgoto[] = {-32768,
- -32768,-32768,-32768,-32768,-32768,-32768,-32768
- };
-
-
- #define YYLAST 33
-
-
- static const short yytable[] = { 41,
- 39, 40, 17, 2, 3, 18, 4, 5, 6, 7,
- 8, 9, 19, 20, 21, 27, 22, 23, 24, 33,
- 34, 28, 25, 29, 26, 30, 31, 35, 32, 37,
- 36, 38, 42
- };
-
- static const short yycheck[] = { 0,
- 6, 7, 7, 4, 5, 15, 7, 8, 9, 10,
- 11, 12, 4, 5, 6, 13, 8, 9, 10, 6,
- 7, 15, 14, 7, 16, 7, 7, 14, 7, 7,
- 16, 7, 0
- };
- #define YYPURE 1
-
- /* BISON template */
- /* -*-C-*- Note some compilers choke on comments on `#line' lines. */
- #line 3 "simple.bsn"
-
- /* 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
- 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.
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- #ifdef __GNUC__
- #define alloca __builtin_alloca
- #else /* Not GNU C. */
- #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__)
- #include <alloca.h>
- #else
- #ifdef MSDOS
- #include <malloc.h>
- #else
- void *alloca(unsigned);
- #endif /* MSDOS */
- #endif /* Sparc. */
- #endif /* Not GNU C. */
-
- #ifndef bcopy
- #define bcopy(s,d,x) memcpy(d,s,x)
- #endif
-
- /* 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 yyerrok (yyerrstatus = 0)
- #define yyclearin (yychar = YYEMPTY)
- #define YYEMPTY -2
- #define YYEOF 0
- #define YYACCEPT return(0)
- #define YYABORT return(1)
- #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); \
- yychar1 = YYTRANSLATE (yychar); \
- YYPOPSTACK; \
- goto yybackup; \
- } \
- else \
- { yyerror ("syntax error: cannot back up"); YYERROR; } \
- while (0)
-
- #define YYTERROR 1
- #define YYERRCODE 256
-
- #ifndef YYIMPURE
- #define YYLEX yylex()
- #endif
-
- #ifndef YYPURE
- #define YYLEX yylex(&yylval, &yylloc)
- #endif
-
- /* If nonreentrant, generate the variables here */
-
- #ifndef YYIMPURE
-
- int yychar; /* the lookahead symbol */
- YYSTYPE yylval; /* the semantic value of the */
- /* lookahead symbol */
-
- #ifdef YYLSP_NEEDED
- YYLTYPE yylloc; /* location data for the lookahead */
- /* symbol */
- #endif
-
- int yynerrs; /* number of parse errors so far */
- #endif /* YYIMPURE */
-
- #if YYDEBUG != 0
- int yydebug; /* nonzero means print parse trace */
- /* Since this is uninitialized, it does not stop multiple parsers
- from coexisting. */
- #endif
-
- /* YYINITDEPTH indicates the initial size of the parser's stacks */
-
- #ifndef YYINITDEPTH
- #define YYINITDEPTH 200
- #endif
-
- /* YYMAXDEPTH is the maximum size the stacks can grow to
- (effective only if the built-in stack extension method is used). */
-
- #if YYMAXDEPTH == 0
- #undef YYMAXDEPTH
- #endif
-
- #ifndef YYMAXDEPTH
- #define YYMAXDEPTH 10000
- #endif
-
- /* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
- static void
- __yy_bcopy (from, to, count)
- char *from;
- char *to;
- int count;
- {
- register char *f = from;
- register char *t = to;
- register int i = count;
-
- while (i-- > 0)
- *t++ = *f++;
- }
-
- #line 131 "simple.bsn"
- int
- yyparse()
- {
- register int yystate;
- register int yyn;
- register short *yyssp;
- register YYSTYPE *yyvsp;
- int yyerrstatus; /* number of tokens to shift before error messages enabled */
- int yychar1; /* lookahead token as an internal (translated) token number */
-
- short yyssa[YYINITDEPTH]; /* the state stack */
- YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
-
- short *yyss = yyssa; /* refer to the stacks thru separate pointers */
- YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */
-
- #ifdef YYLSP_NEEDED
- YYLTYPE *yyls = yylsa;
- YYLTYPE *yylsp;
- YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
-
- #define YYPOPSTACK (yyvsp--, yysp--, yylsp--)
- #else
- #define YYPOPSTACK (yyvsp--, yysp--)
- #endif
-
- int yystacksize = YYINITDEPTH;
-
- #ifndef YYPURE
- int yychar;
- YYSTYPE yylval;
- int yynerrs;
- #ifdef YYLSP_NEEDED
- YYLTYPE yylloc;
- #endif
- #endif
-
- YYSTYPE yyval; /* the variable used to return */
- /* semantic values from the action */
- /* routines */
-
- int yylen;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Starting parse\n");
- #endif
-
- 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. */
-
- yyssp = yyss - 1;
- yyvsp = yyvs;
- #ifdef YYLSP_NEEDED
- yylsp = yyls;
- #endif
-
- /* Push a new state, which is found in yystate . */
- /* In all cases, when you get here, the value and location stacks
- have just been pushed. so pushing a state here evens the stacks. */
- yynewstate:
-
- *++yyssp = yystate;
-
- if (yyssp >= yyss + yystacksize - 1)
- {
- /* 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;
- #ifdef YYLSP_NEEDED
- YYLTYPE *yyls1 = yyls;
- #endif
-
- /* Get the current used size of the three stacks, in elements. */
- int size = yyssp - yyss + 1;
-
- #ifdef yyoverflow
- /* Each stack pointer address is followed by the size of
- the data in use in that stack, in bytes. */
- yyoverflow("parser stack overflow",
- &yyss1, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- #ifdef YYLSP_NEEDED
- &yyls1, size * sizeof (*yylsp),
- #endif
- &yystacksize);
-
- yyss = yyss1; yyvs = yyvs1;
- #ifdef YYLSP_NEEDED
- yyls = yyls1;
- #endif
- #else /* no yyoverflow */
- /* Extend the stack our own way. */
- if (yystacksize >= YYMAXDEPTH)
- {
- yyerror("parser stack overflow");
- return 2;
- }
- yystacksize *= 2;
- if (yystacksize > YYMAXDEPTH)
- yystacksize = YYMAXDEPTH;
- yyss = (short *) alloca (yystacksize * sizeof (*yyssp));
- __yy_bcopy ((char *)yyss1, (char *)yyss, size * sizeof (*yyssp));
- yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
- __yy_bcopy ((char *)yyvs1, (char *)yyvs, size * sizeof (*yyvsp));
- #ifdef YYLSP_NEEDED
- yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
- __yy_bcopy ((char *)yyls1, (char *)yyls, size * sizeof (*yylsp));
- #endif
- #endif /* no yyoverflow */
-
- yyssp = yyss + size - 1;
- yyvsp = yyvs + size - 1;
- #ifdef YYLSP_NEEDED
- yylsp = yyls + size - 1;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Stack size increased to %d\n", yystacksize);
- #endif
-
- if (yyssp >= yyss + yystacksize - 1)
- YYABORT;
- }
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Entering state %d\n", yystate);
- #endif
-
- 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 == YYFLAG)
- goto yydefault;
-
- /* Not known => get a lookahead token if don't already have one. */
-
- /* yychar is either YYEMPTY or YYEOF
- or a valid token in external form. */
-
- if (yychar == YYEMPTY)
- {
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Reading a token: ");
- #endif
- yychar = YYLEX;
- }
-
- /* Convert token to internal form (in yychar1) for indexing tables with */
-
- if (yychar <= 0) /* This means end of input. */
- {
- yychar1 = 0;
- yychar = YYEOF; /* Don't call YYLEX any more */
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Now at end of input.\n");
- #endif
- }
- else
- {
- yychar1 = YYTRANSLATE(yychar);
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Next token is %d (%s)\n", yychar, yytname[yychar1]);
- #endif
- }
-
- yyn += yychar1;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
- goto yydefault;
-
- yyn = yytable[yyn];
-
- /* yyn is what to do for this token type in this state.
- Negative => reduce, -yyn is rule number.
- Positive => shift, yyn is new state.
- New state is final state => don't bother to shift,
- just return success.
- 0, or most negative number => error. */
-
- if (yyn < 0)
- {
- if (yyn == YYFLAG)
- goto yyerrlab;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrlab;
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- /* Shift the lookahead token. */
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
- #endif
-
- /* Discard the token being shifted unless it is eof. */
- if (yychar != YYEOF)
- yychar = YYEMPTY;
-
- *++yyvsp = yylval;
- #ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
- #endif
-
- /* count tokens shifted since error; after three, turn off error status. */
- if (yyerrstatus) yyerrstatus--;
-
- yystate = yyn;
- goto yynewstate;
-
- /* Do the default action for the current state. */
- yydefault:
-
- yyn = yydefact[yystate];
- if (yyn == 0)
- goto yyerrlab;
-
- /* Do a reduction. yyn is the number of a rule to reduce with. */
- yyreduce:
- yylen = yyr2[yyn];
- yyval = yyvsp[1-yylen]; /* implement default value of the action */
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- if (yylen == 1)
- fprintf (stderr, "Reducing 1 value via rule %d (line %d), ",
- yyn, yyrline[yyn]);
- else
- fprintf (stderr, "Reducing %d values via rule %d (line %d), ",
- yylen, yyn, yyrline[yyn]);
- }
- #endif
-
-
- switch (yyn) {
-
- case 3:
- #line 35 "getdate.y"
- {timeflag++;;
- break;}
- case 4:
- #line 37 "getdate.y"
- {zoneflag++;;
- break;}
- case 5:
- #line 39 "getdate.y"
- {dateflag++;;
- break;}
- case 6:
- #line 41 "getdate.y"
- {dayflag++;;
- break;}
- case 7:
- #line 43 "getdate.y"
- {relflag++;;
- break;}
- case 9:
- #line 47 "getdate.y"
- {if (timeflag && dateflag && !relflag) year = yyvsp[0];
- else {timeflag++;hh = yyvsp[0]/100;mm = yyvsp[0]%100;ss = 0;merid = 24;};
- break;}
- case 10:
- #line 51 "getdate.y"
- {hh = yyvsp[-1]; mm = 0; ss = 0; merid = yyvsp[0];;
- break;}
- case 11:
- #line 53 "getdate.y"
- {hh = yyvsp[-2]; mm = yyvsp[0]; merid = 24;;
- break;}
- case 12:
- #line 55 "getdate.y"
- {hh = yyvsp[-3]; mm = yyvsp[-1]; merid = yyvsp[0];;
- break;}
- case 13:
- #line 57 "getdate.y"
- {hh = yyvsp[-3]; mm = yyvsp[-1]; merid = 24;
- daylite = STANDARD; ourzone = -(yyvsp[0]%100 + 60*yyvsp[0]/100);;
- break;}
- case 14:
- #line 60 "getdate.y"
- {hh = yyvsp[-4]; mm = yyvsp[-2]; ss = yyvsp[0]; merid = 24;;
- break;}
- case 15:
- #line 62 "getdate.y"
- {hh = yyvsp[-5]; mm = yyvsp[-3]; ss = yyvsp[-1]; merid = yyvsp[0];;
- break;}
- case 16:
- #line 64 "getdate.y"
- {hh = yyvsp[-5]; mm = yyvsp[-3]; ss = yyvsp[-1]; merid = 24;
- daylite = STANDARD; ourzone = -(yyvsp[0]%100 + 60*yyvsp[0]/100);;
- break;}
- case 17:
- #line 68 "getdate.y"
- {ourzone = yyvsp[0]; daylite = STANDARD;;
- break;}
- case 18:
- #line 70 "getdate.y"
- {ourzone = yyvsp[0]; daylite = DAYLIGHT;;
- break;}
- case 19:
- #line 73 "getdate.y"
- {dayord = 1; dayreq = yyvsp[0];;
- break;}
- case 20:
- #line 75 "getdate.y"
- {dayord = 1; dayreq = yyvsp[-1];;
- break;}
- case 21:
- #line 77 "getdate.y"
- {dayord = yyvsp[-1]; dayreq = yyvsp[0];;
- break;}
- case 22:
- #line 80 "getdate.y"
- {month = yyvsp[-2]; day = yyvsp[0];;
- break;}
- case 23:
- #line 82 "getdate.y"
- {month = yyvsp[-4]; day = yyvsp[-2]; year = yyvsp[0];;
- break;}
- case 24:
- #line 84 "getdate.y"
- {month = yyvsp[-1]; day = yyvsp[0];;
- break;}
- case 25:
- #line 86 "getdate.y"
- {month = yyvsp[-3]; day = yyvsp[-2]; year = yyvsp[0];;
- break;}
- case 26:
- #line 88 "getdate.y"
- {month = yyvsp[0]; day = yyvsp[-1];;
- break;}
- case 27:
- #line 90 "getdate.y"
- {month = yyvsp[-1]; day = yyvsp[-2]; year = yyvsp[0];;
- break;}
- case 28:
- #line 94 "getdate.y"
- {relsec += 60L * yyvsp[-1] * yyvsp[0];;
- break;}
- case 29:
- #line 96 "getdate.y"
- {relmonth += yyvsp[-1] * yyvsp[0];;
- break;}
- case 30:
- #line 98 "getdate.y"
- {relsec += yyvsp[-1];;
- break;}
- case 31:
- #line 100 "getdate.y"
- {relsec += 60L * yyvsp[0];;
- break;}
- case 32:
- #line 102 "getdate.y"
- {relmonth += yyvsp[0];;
- break;}
- case 33:
- #line 104 "getdate.y"
- {relsec++;;
- break;}
- case 34:
- #line 106 "getdate.y"
- {relsec = -relsec; relmonth = -relmonth;;
- break;}
- }
- /* the action file gets copied in in place of this dollarsign */
- #line 362 "simple.bsn"
-
- yyvsp -= yylen;
- yyssp -= yylen;
- #ifdef YYLSP_NEEDED
- yylsp -= yylen;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- short *ssp1 = yyss - 1;
- fprintf (stderr, "state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
- #endif
-
- *++yyvsp = yyval;
-
- #ifdef YYLSP_NEEDED
- yylsp++;
- if (yylen == 0)
- {
- yylsp->first_line = yylloc.first_line;
- yylsp->first_column = yylloc.first_column;
- yylsp->last_line = (yylsp-1)->last_line;
- yylsp->last_column = (yylsp-1)->last_column;
- yylsp->text = 0;
- }
- else
- {
- yylsp->last_line = (yylsp+yylen-1)->last_line;
- yylsp->last_column = (yylsp+yylen-1)->last_column;
- }
- #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. */
-
- yyn = yyr1[yyn];
-
- yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
- if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
- yystate = yytable[yystate];
- else
- yystate = yydefgoto[yyn - YYNTBASE];
-
- goto yynewstate;
-
- yyerrlab: /* here on detecting error */
-
- if (! yyerrstatus)
- /* If not already recovering from an error, report this error. */
- {
- ++yynerrs;
-
- #ifdef YYERROR_VERBOSE
- yyn = yypact[yystate];
-
- if (yyn > YYFLAG && yyn < YYLAST)
- {
- int size = 0;
- char *msg;
- int x, count;
-
- count = 0;
- for (x = 0; x < (sizeof(yytname) / sizeof(char *)); x++)
- if (yycheck[x + yyn] == x)
- size += strlen(yytname[x]) + 15, count++;
- msg = (char *) xmalloc(size + 15);
- strcpy(msg, "parse error");
-
- if (count < 5)
- {
- count = 0;
- for (x = 0; x < (sizeof(yytname) / sizeof(char *)); x++)
- if (yycheck[x + yyn] == x)
- {
- strcat(msg, count == 0 ? ", expecting `" : " or `");
- strcat(msg, yytname[x]);
- strcat(msg, "'");
- count++;
- }
- }
- yyerror(msg);
- free(msg);
- }
- else
- #endif /* YYERROR_VERBOSE */
- yyerror("parse error");
- }
-
- yyerrlab1: /* here on error raised explicitly by an action */
-
- 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)
- YYABORT;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
- #endif
-
- yychar = YYEMPTY;
- }
-
- /* Else will try to reuse lookahead token
- after shifting the error token. */
-
- yyerrstatus = 3; /* Each real token shifted decrements this */
-
- goto yyerrhandle;
-
- yyerrdefault: /* 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. */
- yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
- if (yyn) goto yydefault;
- #endif
-
- yyerrpop: /* pop the current state because it cannot handle the error token */
-
- if (yyssp == yyss) YYABORT;
- yyvsp--;
- yystate = *--yyssp;
- #ifdef YYLSP_NEEDED
- yylsp--;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- short *ssp1 = yyss - 1;
- fprintf (stderr, "Error: state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
- #endif
-
- yyerrhandle:
-
- yyn = yypact[yystate];
- if (yyn == YYFLAG)
- goto yyerrdefault;
-
- yyn += YYTERROR;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
- goto yyerrdefault;
-
- yyn = yytable[yyn];
- if (yyn < 0)
- {
- if (yyn == YYFLAG)
- goto yyerrpop;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrpop;
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting error token, ");
- #endif
-
- *++yyvsp = yylval;
- #ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
- #endif
-
- yystate = yyn;
- goto yynewstate;
- }
- #line 107 "getdate.y"
-
-
- static int mdays[12] =
- {31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
- #define epoch 1970
-
- extern struct tm *localtime();
- time_t dateconv(mm, dd, yy, h, m, s, mer, zone, dayflag)
- int mm, dd, yy, h, m, s, mer, zone, dayflag;
- {
- time_t tod, jdate;
- register int i;
- time_t timeconv();
-
- if (yy < 0) yy = -yy;
- if (yy < 100) yy += 1900;
- mdays[1] = 28 + (yy%4 == 0 && (yy%100 != 0 || yy%400 == 0));
- if (yy < epoch || yy > 1999 || mm < 1 || mm > 12 ||
- dd < 1 || dd > mdays[--mm]) return (-1);
- jdate = dd-1;
- for (i=0; i<mm; i++) jdate += mdays[i];
- for (i = epoch; i < yy; i++) jdate += 365 + (i%4 == 0);
- jdate *= daysec;
- jdate += zone * 60L;
- if ((tod = timeconv(h, m, s, mer)) < 0) return (-1);
- jdate += tod;
- if (dayflag==DAYLIGHT || (dayflag==MAYBE&&localtime(&jdate)->tm_isdst))
- jdate += -1*60*60;
- return (jdate);
- }
-
- time_t dayconv(ord, day, now) int ord, day; time_t now;
- {
- register struct tm *loctime;
- time_t tod;
- time_t daylcorr();
-
- tod = now;
- loctime = localtime(&tod);
- tod += daysec * ((day - loctime->tm_wday + 7) % 7);
- tod += 7*daysec*(ord<=0?ord:ord-1);
- return daylcorr(tod, now);
- }
-
- time_t timeconv(hh, mm, ss, mer) register int hh, mm, ss, mer;
- {
- if (mm < 0 || mm > 59 || ss < 0 || ss > 59) return (-1);
- switch (mer) {
- case AM: if (hh < 1 || hh > 12) return(-1);
- return (60L * ((hh%12)*60L + mm)+ss);
- case PM: if (hh < 1 || hh > 12) return(-1);
- return (60L * ((hh%12 +12)*60L + mm)+ss);
- case 24: if (hh < 0 || hh > 23) return (-1);
- return (60L * (hh*60L + mm)+ss);
- default: return (-1);
- }
- }
- time_t monthadd(sdate, relmonth) time_t sdate, relmonth;
- {
- struct tm *ltime;
- time_t dateconv();
- time_t daylcorr();
- int mm, yy;
-
- if (relmonth == 0) return 0;
- ltime = localtime(&sdate);
- mm = 12*ltime->tm_year + ltime->tm_mon + relmonth;
- yy = mm/12;
- mm = mm%12 + 1;
- return daylcorr(dateconv(mm, ltime->tm_mday, yy, ltime->tm_hour,
- ltime->tm_min, ltime->tm_sec, 24, ourzone, MAYBE), sdate);
- }
-
- time_t daylcorr(future, now) time_t future, now;
- {
- int fdayl, nowdayl;
-
- nowdayl = (localtime(&now)->tm_hour+1) % 24;
- fdayl = (localtime(&future)->tm_hour+1) % 24;
- return (future-now) + 60L*60L*(nowdayl-fdayl);
- }
-
- static char *lptr;
-
- yylex()
- {
- extern int yylval;
- int sign;
- register char c;
- register char *p;
- char idbuf[20];
- int pcnt;
-
- for (;;) {
- while (isspace(*lptr)) lptr++;
-
- if (isdigit(c = *lptr) || c == '-' || c == '+') {
- if (c== '-' || c == '+') {
- if (c=='-') sign = -1;
- else sign = 1;
- if (!isdigit(*++lptr)) {
- /* yylval = sign; return (NUMBER); */
- return yylex(); /* skip the '-' sign */
- }
- } else sign = 1;
- yylval = 0;
- while (isdigit(c = *lptr++)) yylval = 10*yylval + c - '0';
- yylval *= sign;
- lptr--;
- return (NUMBER);
-
- } else if (isalpha(c)) {
- p = idbuf;
- while (isalpha(c = *lptr++) || c=='.')
- if (p < &idbuf[sizeof(idbuf)-1])
- *p++ = c;
- *p = '\0';
- lptr--;
- return (lookup(idbuf));
- }
-
- else if (c == '(') {
- pcnt = 0;
- do {
- c = *lptr++;
- if (c == '\0') return(c);
- else if (c == '(') pcnt++;
- else if (c == ')') pcnt--;
- } while (pcnt > 0);
- }
-
- else return (*lptr++);
- }
- }
-
- struct table {
- char *name;
- int type, value;
- };
-
- struct table mdtab[] = {
- {"January", MONTH, 1},
- {"February", MONTH, 2},
- {"March", MONTH, 3},
- {"April", MONTH, 4},
- {"May", MONTH, 5},
- {"June", MONTH, 6},
- {"July", MONTH, 7},
- {"August", MONTH, 8},
- {"September", MONTH, 9},
- {"Sept", MONTH, 9},
- {"October", MONTH, 10},
- {"November", MONTH, 11},
- {"December", MONTH, 12},
-
- {"Sunday", DAY, 0},
- {"Monday", DAY, 1},
- {"Tuesday", DAY, 2},
- {"Tues", DAY, 2},
- {"Wednesday", DAY, 3},
- {"Wednes", DAY, 3},
- {"Thursday", DAY, 4},
- {"Thur", DAY, 4},
- {"Thurs", DAY, 4},
- {"Friday", DAY, 5},
- {"Saturday", DAY, 6},
- {0, 0, 0}};
-
- #define HRS *60
- #define HALFHR 30
- struct table mztab[] = {
- {"a.m.", MERIDIAN, AM},
- {"am", MERIDIAN, AM},
- {"p.m.", MERIDIAN, PM},
- {"pm", MERIDIAN, PM},
- {"nst", ZONE, 3 HRS + HALFHR}, /* Newfoundland */
- {"n.s.t.", ZONE, 3 HRS + HALFHR},
- {"ast", ZONE, 4 HRS}, /* Atlantic */
- {"a.s.t.", ZONE, 4 HRS},
- {"adt", DAYZONE, 4 HRS},
- {"a.d.t.", DAYZONE, 4 HRS},
- {"est", ZONE, 5 HRS}, /* Eastern */
- {"e.s.t.", ZONE, 5 HRS},
- {"edt", DAYZONE, 5 HRS},
- {"e.d.t.", DAYZONE, 5 HRS},
- {"cst", ZONE, 6 HRS}, /* Central */
- {"c.s.t.", ZONE, 6 HRS},
- {"cdt", DAYZONE, 6 HRS},
- {"c.d.t.", DAYZONE, 6 HRS},
- {"mst", ZONE, 7 HRS}, /* Mountain */
- {"m.s.t.", ZONE, 7 HRS},
- {"mdt", DAYZONE, 7 HRS},
- {"m.d.t.", DAYZONE, 7 HRS},
- {"pst", ZONE, 8 HRS}, /* Pacific */
- {"p.s.t.", ZONE, 8 HRS},
- {"pdt", DAYZONE, 8 HRS},
- {"p.d.t.", DAYZONE, 8 HRS},
- {"yst", ZONE, 9 HRS}, /* Yukon */
- {"y.s.t.", ZONE, 9 HRS},
- {"ydt", DAYZONE, 9 HRS},
- {"y.d.t.", DAYZONE, 9 HRS},
- {"hst", ZONE, 10 HRS}, /* Hawaii */
- {"h.s.t.", ZONE, 10 HRS},
- {"hdt", DAYZONE, 10 HRS},
- {"h.d.t.", DAYZONE, 10 HRS},
-
- {"gmt", ZONE, 0 HRS},
- {"g.m.t.", ZONE, 0 HRS},
- {"bst", DAYZONE, 0 HRS}, /* British Summer Time */
- {"b.s.t.", DAYZONE, 0 HRS},
- {"eet", ZONE, 0 HRS}, /* European Eastern Time */
- {"e.e.t.", ZONE, 0 HRS},
- {"eest", DAYZONE, 0 HRS}, /* European Eastern Summer Time */
- {"e.e.s.t.", DAYZONE, 0 HRS},
- {"met", ZONE, -1 HRS}, /* Middle European Time */
- {"m.e.t.", ZONE, -1 HRS},
- {"mest", DAYZONE, -1 HRS}, /* Middle European Summer Time */
- {"m.e.s.t.", DAYZONE, -1 HRS},
- {"wet", ZONE, -2 HRS }, /* Western European Time */
- {"w.e.t.", ZONE, -2 HRS },
- {"west", DAYZONE, -2 HRS}, /* Western European Summer Time */
- {"w.e.s.t.", DAYZONE, -2 HRS},
-
- {"jst", ZONE, -9 HRS}, /* Japan Standard Time */
- {"j.s.t.", ZONE, -9 HRS}, /* Japan Standard Time */
- /* No daylight savings time */
-
- {"aest", ZONE, -10 HRS}, /* Australian Eastern Time */
- {"a.e.s.t.", ZONE, -10 HRS},
- {"aesst", DAYZONE, -10 HRS}, /* Australian Eastern Summer Time */
- {"a.e.s.s.t.", DAYZONE, -10 HRS},
- {"acst", ZONE, -(9 HRS + HALFHR)}, /* Australian Central Time */
- {"a.c.s.t.", ZONE, -(9 HRS + HALFHR)},
- {"acsst", DAYZONE, -(9 HRS + HALFHR)}, /* Australian Central Summer */
- {"a.c.s.s.t.", DAYZONE, -(9 HRS + HALFHR)},
- {"awst", ZONE, -8 HRS}, /* Australian Western Time */
- {"a.w.s.t.", ZONE, -8 HRS}, /* (no daylight time there, I'm told */
- {0, 0, 0}};
-
- struct table unittb[] = {
- {"year", MUNIT, 12},
- {"month", MUNIT, 1},
- {"fortnight", UNIT, 14*24*60},
- {"week", UNIT, 7*24*60},
- {"day", UNIT, 1*24*60},
- {"hour", UNIT, 60},
- {"minute", UNIT, 1},
- {"min", UNIT, 1},
- {"second", SUNIT, 1},
- {"sec", SUNIT, 1},
- {0, 0, 0}};
-
- struct table othertb[] = {
- {"tomorrow", UNIT, 1*24*60},
- {"yesterday", UNIT, -1*24*60},
- {"today", UNIT, 0},
- {"now", UNIT, 0},
- {"last", NUMBER, -1},
- {"this", UNIT, 0},
- {"next", NUMBER, 2},
- {"first", NUMBER, 1},
- /* {"second", NUMBER, 2}, */
- {"third", NUMBER, 3},
- {"fourth", NUMBER, 4},
- {"fifth", NUMBER, 5},
- {"sixth", NUMBER, 6},
- {"seventh", NUMBER, 7},
- {"eigth", NUMBER, 8},
- {"ninth", NUMBER, 9},
- {"tenth", NUMBER, 10},
- {"eleventh", NUMBER, 11},
- {"twelfth", NUMBER, 12},
- {"ago", AGO, 1},
- {0, 0, 0}};
-
- struct table milzone[] = {
- {"a", ZONE, 1 HRS},
- {"b", ZONE, 2 HRS},
- {"c", ZONE, 3 HRS},
- {"d", ZONE, 4 HRS},
- {"e", ZONE, 5 HRS},
- {"f", ZONE, 6 HRS},
- {"g", ZONE, 7 HRS},
- {"h", ZONE, 8 HRS},
- {"i", ZONE, 9 HRS},
- {"k", ZONE, 10 HRS},
- {"l", ZONE, 11 HRS},
- {"m", ZONE, 12 HRS},
- {"n", ZONE, -1 HRS},
- {"o", ZONE, -2 HRS},
- {"p", ZONE, -3 HRS},
- {"q", ZONE, -4 HRS},
- {"r", ZONE, -5 HRS},
- {"s", ZONE, -6 HRS},
- {"t", ZONE, -7 HRS},
- {"u", ZONE, -8 HRS},
- {"v", ZONE, -9 HRS},
- {"w", ZONE, -10 HRS},
- {"x", ZONE, -11 HRS},
- {"y", ZONE, -12 HRS},
- {"z", ZONE, 0 HRS},
- {0, 0, 0}};
-
- lookup(id) char *id;
- {
- #define gotit (yylval=i->value, i->type)
- #define getid for(j=idvar, k=id; *j++ = *k++; )
-
- char idvar[20];
- register char *j, *k;
- register struct table *i;
- int abbrev;
-
- getid;
- if (strlen(idvar) == 3) abbrev = 1;
- else if (strlen(idvar) == 4 && idvar[3] == '.') {
- abbrev = 1;
- idvar[3] = '\0';
- }
- else abbrev = 0;
-
- if (islower(*idvar)) *idvar = toupper(*idvar);
-
- for (i = mdtab; i->name; i++) {
- k = idvar;
- for (j = i->name; *j++ == *k++;) {
- if (abbrev && j==i->name+3) return gotit;
- if (j[-1] == 0) return gotit;
- }
- }
-
- getid;
- for (i = mztab; i->name; i++)
- if (strcmp(i->name, idvar) == 0) return gotit;
-
- for (j = idvar; *j; j++)
- if (isupper(*j)) *j = tolower(*j);
- for (i=mztab; i->name; i++)
- if (strcmp(i->name, idvar) == 0) return gotit;
-
- getid;
- for (i=unittb; i->name; i++)
- if (strcmp(i->name, idvar) == 0) return gotit;
-
- if (idvar[strlen(idvar)-1] == 's')
- idvar[strlen(idvar)-1] = '\0';
- for (i=unittb; i->name; i++)
- if (strcmp(i->name, idvar) == 0) return gotit;
-
- getid;
- for (i = othertb; i->name; i++)
- if (strcmp(i->name, idvar) == 0) return gotit;
-
- getid;
- if (strlen(idvar) == 1 && isalpha(*idvar)) {
- if (isupper(*idvar)) *idvar = tolower(*idvar);
- for (i = milzone; i->name; i++)
- if (strcmp(i->name, idvar) == 0) return gotit;
- }
-
- return(ID);
- }
-
- time_t get_date(p, now, zone) char *p; time_t now; long zone;
- {
- #define mcheck(f) if (f>1) err++
- time_t monthadd();
- int err;
- struct tm *lt;
- time_t sdate, tod;
-
- lptr = p;
- if (now <= 0)
- (void) time(&now);
- lt = localtime(&now);
- year = lt->tm_year;
- month = lt->tm_mon+1;
- day = lt->tm_mday;
- relsec = 0; relmonth = 0;
- timeflag=zoneflag=dateflag=dayflag=relflag=0;
- daylite = MAYBE;
- hh = mm = ss = 0;
- merid = 24;
- ourzone = zone;
-
- if (err = yyparse()) return (-1);
-
- mcheck(timeflag);
- mcheck(zoneflag);
- mcheck(dateflag);
- mcheck(dayflag);
-
- if (err) return (-1);
- if (dateflag || timeflag || dayflag) {
- sdate = dateconv(month,day,year,hh,mm,ss,merid,ourzone,daylite);
- if (sdate < 0) return -1;
- }
- else {
- sdate = now;
- if (relflag == 0)
- sdate -= (lt->tm_sec + lt->tm_min*60 +
- lt->tm_hour*(60L*60L));
- }
-
- sdate += relsec;
- sdate += monthadd(sdate, relmonth);
-
- if (dayflag && !dateflag) {
- tod = dayconv(dayord, dayreq, sdate);
- sdate += tod;
- }
-
- return sdate;
- }
-
- yyerror(s) char *s;
- {}
-