home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Black Box 4
/
BlackBox.cdr
/
progc
/
getdate.arj
/
GETDATE.C
next >
Wrap
Text File
|
1991-08-20
|
42KB
|
1,215 lines
# define ID 257
# define MONTH 258
# define DAY 259
# define MERIDIAN 260
# define SNUMBER 261
# define UNUMBER 262
# define UNIT 263
# define MUNIT 264
# define SUNIT 265
# define ZONE 266
# define DAYZONE 267
# define AGO 268
# line 3 "getdate.y"
/* Originally from: Steven M. Bellovin (unc!smb) */
/* Dept. of Computer Science */
/* University of North Carolina at Chapel Hill */
/* @(#)getdate.y 2.20 9/1/89 */
#ifdef COMMENT
#include "defs.h"
#endif
#include <sys/types.h>
#ifdef USG
struct timeb
{
time_t time;
unsigned short millitm;
short timezone;
short dstflag;
};
#else
#include <sys/timeb.h>
#endif
#include <ctype.h>
#if defined(BSD4_2)
#include <sys/time.h>
#else /* sane */
#include <time.h>
#endif /* sane */
#define NULL 0
#define daysec (24L*60L*60L)
static int timeflag, zoneflag, dateflag, dayflag, relflag;
static time_t relsec, relmonth;
static int hh, mm, ss, merid, daylght;
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
#define yyclearin yychar = -1
#define yyerrok yyerrflag = 0
extern int yychar;
extern int yyerrflag;
#ifndef YYMAXDEPTH
#define YYMAXDEPTH 150
#endif
#ifndef YYSTYPE
#define YYSTYPE int
#endif
YYSTYPE yylval, yyval;
typedef int yytabelem;
# define YYERRCODE 256
# line 126 "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 = 0;
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 (UNUMBER); */
return yylex(); /* skip the '-' sign */
}
}
yylval = 0;
while (isdigit(c = *lptr++))
yylval = 10*yylval + c - '0';
lptr--;
if (sign < 0)
yylval = -yylval;
if (sign != 0)
return SNUMBER;
else
return UNUMBER;
} 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;
long 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", UNUMBER, -1},
{"this", UNIT, 0},
{"next", UNUMBER, 2},
{"first", UNUMBER, 1},
/* {"second", UNUMBER, 2}, */
{"third", UNUMBER, 3},
{"fourth", UNUMBER, 4},
{"fifth", UNUMBER, 5},
{"sixth", UNUMBER, 6},
{"seventh", UNUMBER, 7},
{"eighth", UNUMBER, 8},
{"ninth", UNUMBER, 9},
{"tenth", UNUMBER, 10},
{"eleventh", UNUMBER, 11},
{"twelfth", UNUMBER, 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)
char idvar[128];
register char *j, *k;
register struct table *i;
int abbrev;
(void) strcpy(idvar, id);
j = idvar;
k = id - 1;
while (*++k)
*j++ = isupper(*k) ? tolower(*k) : *k;
*j = '\0';
if (strlen(idvar) == 3)
abbrev = 1;
else
if (strlen(idvar) == 4 && idvar[3] == '.') {
abbrev = 1;
idvar[3] = '\0';
}
else
abbrev = 0;
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;
}
}
for (i = mztab; i->name; i++)
if (strcmp(i->name, idvar) == 0)
return gotit;
for (i=mztab; i->name; i++)
if (strcmp(i->name, idvar) == 0)
return gotit;
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;
for (i = othertb; i->name; i++)
if (strcmp(i->name, idvar) == 0)
return gotit;
if (strlen(idvar) == 1 && isalpha(*idvar)) {
for (i = milzone; i->name; i++)
if (strcmp(i->name, idvar) == 0)
return gotit;
}
return ID;
}
time_t
getdate(p, now)
char *p;
struct timeb *now;
{
#define mcheck(f) if (f>1) err++
time_t monthadd();
int err;
struct tm *lt;
struct timeb ftz;
time_t sdate, tod;
lptr = p;
if (now == ((struct timeb *) NULL)) {
now = &ftz;
ftime(&ftz);
}
lt = localtime(&now->time);
year = lt->tm_year;
month = lt->tm_mon+1;
day = lt->tm_mday;
relsec = 0; relmonth = 0;
timeflag=zoneflag=dateflag=dayflag=relflag=0;
ourzone = now->timezone;
daylght = MAYBE;
hh = mm = ss = 0;
merid = 24;
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,daylght);
if (sdate < 0) return -1;
}
else {
sdate = now->time;
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;
}
/*
** Have to do *something* with a legitimate -1 so it's distinguishable
** from the error return value. (Alternately could set errno on error.)
*/
return (sdate == -1) ? 0 : sdate;
}
yyerror(s) char *s;
{}
yytabelem yyexca[] ={
-1, 1,
0, -1,
-2, 0,
};
# define YYNPROD 38
# define YYLAST 223
yytabelem yyact[]={
12, 13, 22, 14, 9, 15, 16, 17, 10, 11,
42, 18, 41, 20, 29, 30, 31, 43, 44, 38,
40, 34, 33, 32, 27, 39, 35, 28, 8, 7,
6, 5, 4, 3, 2, 1, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 23, 21, 19, 0, 0, 24, 25,
26, 36, 37 };
yytabelem yypact[]={
-1000, -258, -1000, -1000, -1000, -1000, -1000, -257, -1000, -45,
-1000, -1000, -238, -17, -249, -1000, -1000, -1000, -1000, -1000,
-239, -1000, -240, -241, -1000, -1000, -1000, -18, -1000, -1000,
-1000, -1000, -39, -22, -1000, -242, -1000, -1000, -250, -252,
-1000, -243, -1000, -1000, -1000 };
yytabelem yypgo[]={
0, 35, 34, 33, 32, 31, 30, 29, 28 };
yytabelem yyr1[]={
0, 1, 1, 2, 2, 2, 2, 2, 2, 8,
3, 3, 3, 3, 3, 3, 3, 4, 4, 6,
6, 6, 5, 5, 5, 5, 5, 5, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7 };
yytabelem yyr2[]={
0, 0, 4, 3, 3, 3, 3, 3, 2, 3,
5, 7, 9, 9, 11, 13, 13, 3, 3, 3,
5, 5, 7, 11, 5, 9, 5, 7, 5, 5,
5, 5, 5, 5, 3, 3, 3, 5 };
yytabelem yychk[]={
-1000, -1, -2, -3, -4, -5, -6, -7, -8, 262,
266, 267, 258, 259, 261, 263, 264, 265, 268, 260,
58, 259, 47, 258, 263, 264, 265, 262, 44, 263,
264, 265, 262, 262, 262, 44, 260, 261, 58, 47,
262, 262, 262, 260, 261 };
yytabelem yydef[]={
1, -2, 2, 3, 4, 5, 6, 7, 8, 9,
17, 18, 0, 19, 0, 34, 35, 36, 37, 10,
0, 21, 0, 26, 29, 31, 33, 24, 20, 28,
30, 32, 11, 22, 27, 0, 12, 13, 0, 0,
25, 14, 23, 15, 16 };
typedef struct { char *t_name; int t_val; } yytoktype;
#ifndef YYDEBUG
# define YYDEBUG 0 /* don't allow debugging */
#endif
#if YYDEBUG
yytoktype yytoks[] =
{
"ID", 257,
"MONTH", 258,
"DAY", 259,
"MERIDIAN", 260,
"SNUMBER", 261,
"UNUMBER", 262,
"UNIT", 263,
"MUNIT", 264,
"SUNIT", 265,
"ZONE", 266,
"DAYZONE", 267,
"AGO", 268,
"-unknown-", -1 /* ends search */
};
char * yyreds[] =
{
"-no such reduction-",
"timedate : /* empty */",
"timedate : timedate item",
"item : tspec",
"item : zone",
"item : dtspec",
"item : dyspec",
"item : rspec",
"item : nspec",
"nspec : UNUMBER",
"tspec : UNUMBER MERIDIAN",
"tspec : UNUMBER ':' UNUMBER",
"tspec : UNUMBER ':' UNUMBER MERIDIAN",
"tspec : UNUMBER ':' UNUMBER SNUMBER",
"tspec : UNUMBER ':' UNUMBER ':' UNUMBER",
"tspec : UNUMBER ':' UNUMBER ':' UNUMBER MERIDIAN",
"tspec : UNUMBER ':' UNUMBER ':' UNUMBER SNUMBER",
"zone : ZONE",
"zone : DAYZONE",
"dyspec : DAY",
"dyspec : DAY ','",
"dyspec : UNUMBER DAY",
"dtspec : UNUMBER '/' UNUMBER",
"dtspec : UNUMBER '/' UNUMBER '/' UNUMBER",
"dtspec : MONTH UNUMBER",
"dtspec : MONTH UNUMBER ',' UNUMBER",
"dtspec : UNUMBER MONTH",
"dtspec : UNUMBER MONTH UNUMBER",
"rspec : SNUMBER UNIT",
"rspec : UNUMBER UNIT",
"rspec : SNUMBER MUNIT",
"rspec : UNUMBER MUNIT",
"rspec : SNUMBER SUNIT",
"rspec : UNUMBER SUNIT",
"rspec : UNIT",
"rspec : MUNIT",
"rspec : SUNIT",
"rspec : rspec AGO",
};
#endif /* YYDEBUG */
/*
** Skeleton parser driver for yacc output
*/
/*
** yacc user known macros and defines
*/
#define YYERROR goto yyerrlab
#define YYACCEPT return(0)
#define YYABORT return(1)
#define YYBACKUP( newtoken, newvalue )\
{\
if ( yychar >= 0 || ( yyr2[ yytmp ] >> 1 ) != 1 )\
{\
yyerror( "syntax error - cannot backup" );\
goto yyerrlab;\
}\
yychar = newtoken;\
yystate = *yyps;\
yylval = newvalue;\
goto yynewstate;\
}
#define YYRECOVERING() (!!yyerrflag)
#ifndef YYDEBUG
# define YYDEBUG 1 /* make debugging available */
#endif
/*
** user known globals
*/
int yydebug; /* set to 1 to get debugging */
/*
** driver internal defines
*/
#define YYFLAG (-1000)
/*
** global variables used by the parser
*/
YYSTYPE yyv[ YYMAXDEPTH ]; /* value stack */
int yys[ YYMAXDEPTH ]; /* state stack */
YYSTYPE *yypv; /* top of value stack */
int *yyps; /* top of state stack */
int yystate; /* current state */
int yytmp; /* extra var (lasts between blocks) */
int yynerrs; /* number of errors */
int yyerrflag; /* error recovery flag */
int yychar; /* current input token number */
/*
** yyparse - return 0 if worked, 1 if syntax error not recovered from
*/
int
yyparse()
{
register YYSTYPE *yypvt; /* top of value stack for $vars */
/*
** Initialize externals - yyparse may be called more than once
*/
yypv = &yyv[-1];
yyps = &yys[-1];
yystate = 0;
yytmp = 0;
yynerrs = 0;
yyerrflag = 0;
yychar = -1;
goto yystack;
{
register YYSTYPE *yy_pv; /* top of value stack */
register int *yy_ps; /* top of state stack */
register int yy_state; /* current state */
register int yy_n; /* internal state number info */
/*
** get globals into registers.
** branch to here only if YYBACKUP was called.
*/
yynewstate:
yy_pv = yypv;
yy_ps = yyps;
yy_state = yystate;
goto yy_newstate;
/*
** get globals into registers.
** either we just started, or we just finished a reduction
*/
yystack:
yy_pv = yypv;
yy_ps = yyps;
yy_state = yystate;
/*
** top of for (;;) loop while no reductions done
*/
yy_stack:
/*
** put a state and value onto the stacks
*/
#if YYDEBUG
/*
** if debugging, look up token value in list of value vs.
** name pairs. 0 and negative (-1) are special values.
** Note: linear search is used since time is not a real
** consideration while debugging.
*/
if ( yydebug )
{
register int yy_i;
printf( "State %d, token ", yy_state );
if ( yychar == 0 )
printf( "end-of-file\n" );
else if ( yychar < 0 )
printf( "-none-\n" );
else
{
for ( yy_i = 0; yytoks[yy_i].t_val >= 0;
yy_i++ )
{
if ( yytoks[yy_i].t_val == yychar )
break;
}
printf( "%s\n", yytoks[yy_i].t_name );
}
}
#endif /* YYDEBUG */
if ( ++yy_ps >= &yys[ YYMAXDEPTH ] ) /* room on stack? */
{
yyerror( "yacc stack overflow" );
YYABORT;
}
*yy_ps = yy_state;
*++yy_pv = yyval;
/*
** we have a new state - find out what to do
*/
yy_newstate:
if ( ( yy_n = yypact[ yy_state ] ) <= YYFLAG )
goto yydefault; /* simple state */
#if YYDEBUG
/*
** if debugging, need to mark whether new token grabbed
*/
yytmp = yychar < 0;
#endif
if ( ( yychar < 0 ) && ( ( yychar = yylex() ) < 0 ) )
yychar = 0; /* reached EOF */
#if YYDEBUG
if ( yydebug && yytmp )
{
register int yy_i;
printf( "Received token " );
if ( yychar == 0 )
printf( "end-of-file\n" );
else if ( yychar < 0 )
printf( "-none-\n" );
else
{
for ( yy_i = 0; yytoks[yy_i].t_val >= 0;
yy_i++ )
{
if ( yytoks[yy_i].t_val == yychar )
break;
}
printf( "%s\n", yytoks[yy_i].t_name );
}
}
#endif /* YYDEBUG */
if ( ( ( yy_n += yychar ) < 0 ) || ( yy_n >= YYLAST ) )
goto yydefault;
if ( yychk[ yy_n = yyact[ yy_n ] ] == yychar ) /*valid shift*/
{
yychar = -1;
yyval = yylval;
yy_state = yy_n;
if ( yyerrflag > 0 )
yyerrflag--;
goto yy_stack;
}
yydefault:
if ( ( yy_n = yydef[ yy_state ] ) == -2 )
{
#if YYDEBUG
yytmp = yychar < 0;
#endif
if ( ( yychar < 0 ) && ( ( yychar = yylex() ) < 0 ) )
yychar = 0; /* reached EOF */
#if YYDEBUG
if ( yydebug && yytmp )
{
register int yy_i;
printf( "Received token " );
if ( yychar == 0 )
printf( "end-of-file\n" );
else if ( yychar < 0 )
printf( "-none-\n" );
else
{
for ( yy_i = 0;
yytoks[yy_i].t_val >= 0;
yy_i++ )
{
if ( yytoks[yy_i].t_val
== yychar )
{
break;
}
}
printf( "%s\n", yytoks[yy_i].t_name );
}
}
#endif /* YYDEBUG */
/*
** look through exception table
*/
{
register int *yyxi = yyexca;
while ( ( *yyxi != -1 ) ||
( yyxi[1] != yy_state ) )
{
yyxi += 2;
}
while ( ( *(yyxi += 2) >= 0 ) &&
( *yyxi != yychar ) )
;
if ( ( yy_n = yyxi[1] ) < 0 )
YYACCEPT;
}
}
/*
** check for syntax error
*/
if ( yy_n == 0 ) /* have an error */
{
/* no worry about speed here! */
switch ( yyerrflag )
{
case 0: /* new error */
yyerror( "syntax error" );
goto skip_init;
yyerrlab:
/*
** get globals into registers.
** we have a user generated syntax type error
*/
yy_pv = yypv;
yy_ps = yyps;
yy_state = yystate;
yynerrs++;
skip_init:
case 1:
case 2: /* incompletely recovered error */
/* try again... */
yyerrflag = 3;
/*
** find state where "error" is a legal
** shift action
*/
while ( yy_ps >= yys )
{
yy_n = yypact[ *yy_ps ] + YYERRCODE;
if ( yy_n >= 0 && yy_n < YYLAST &&
yychk[yyact[yy_n]] == YYERRCODE) {
/*
** simulate shift of "error"
*/
yy_state = yyact[ yy_n ];
goto yy_stack;
}
/*
** current state has no shift on
** "error", pop stack
*/
#if YYDEBUG
# define _POP_ "Error recovery pops state %d, uncovers state %d\n"
if ( yydebug )
printf( _POP_, *yy_ps,
yy_ps[-1] );
# undef _POP_
#endif
yy_ps--;
yy_pv--;
}
/*
** there is no state on stack with "error" as
** a valid shift. give up.
*/
YYABORT;
case 3: /* no shift yet; eat a token */
#if YYDEBUG
/*
** if debugging, look up token in list of
** pairs. 0 and negative shouldn't occur,
** but since timing doesn't matter when
** debugging, it doesn't hurt to leave the
** tests here.
*/
if ( yydebug )
{
register int yy_i;
printf( "Error recovery discards " );
if ( yychar == 0 )
printf( "token end-of-file\n" );
else if ( yychar < 0 )
printf( "token -none-\n" );
else
{
for ( yy_i = 0;
yytoks[yy_i].t_val >= 0;
yy_i++ )
{
if ( yytoks[yy_i].t_val
== yychar )
{
break;
}
}
printf( "token %s\n",
yytoks[yy_i].t_name );
}
}
#endif /* YYDEBUG */
if ( yychar == 0 ) /* reached EOF. quit */
YYABORT;
yychar = -1;
goto yy_newstate;
}
}/* end if ( yy_n == 0 ) */
/*
** reduction by production yy_n
** put stack tops, etc. so things right after switch
*/
#if YYDEBUG
/*
** if debugging, print the string that is the user's
** specification of the reduction which is just about
** to be done.
*/
if ( yydebug )
printf( "Reduce by (%d) \"%s\"\n",
yy_n, yyreds[ yy_n ] );
#endif
yytmp = yy_n; /* value to switch over */
yypvt = yy_pv; /* $vars top of value stack */
/*
** Look in goto table for next state
** Sorry about using yy_state here as temporary
** register variable, but why not, if it works...
** If yyr2[ yy_n ] doesn't have the low order bit
** set, then there is no action to be done for
** this reduction. So, no saving & unsaving of
** registers done. The only difference between the
** code just after the if and the body of the if is
** the goto yy_stack in the body. This way the test
** can be made before the choice of what to do is needed.
*/
{
/* length of production doubled with extra bit */
register int yy_len = yyr2[ yy_n ];
if ( !( yy_len & 01 ) )
{
yy_len >>= 1;
yyval = ( yy_pv -= yy_len )[1]; /* $$ = $1 */
yy_state = yypgo[ yy_n = yyr1[ yy_n ] ] +
*( yy_ps -= yy_len ) + 1;
if ( yy_state >= YYLAST ||
yychk[ yy_state =
yyact[ yy_state ] ] != -yy_n )
{
yy_state = yyact[ yypgo[ yy_n ] ];
}
goto yy_stack;
}
yy_len >>= 1;
yyval = ( yy_pv -= yy_len )[1]; /* $$ = $1 */
yy_state = yypgo[ yy_n = yyr1[ yy_n ] ] +
*( yy_ps -= yy_len ) + 1;
if ( yy_state >= YYLAST ||
yychk[ yy_state = yyact[ yy_state ] ] != -yy_n )
{
yy_state = yyact[ yypgo[ yy_n ] ];
}
}
/* save until reenter driver code */
yystate = yy_state;
yyps = yy_ps;
yypv = yy_pv;
}
/*
** code supplied by user is placed in this switch
*/
switch( yytmp )
{
case 3:
# line 48 "getdate.y"
{timeflag++;} break;
case 4:
# line 50 "getdate.y"
{zoneflag++;} break;
case 5:
# line 52 "getdate.y"
{dateflag++;} break;
case 6:
# line 54 "getdate.y"
{dayflag++;} break;
case 7:
# line 56 "getdate.y"
{relflag++;} break;
case 9:
# line 60 "getdate.y"
{if (timeflag && dateflag && !relflag) year = yypvt[-0];
else {timeflag++;hh = yypvt[-0]/100;mm = yypvt[-0]%100;ss = 0;merid = 24;}} break;
case 10:
# line 64 "getdate.y"
{hh = yypvt[-1]; mm = 0; ss = 0; merid = yypvt[-0];} break;
case 11:
# line 66 "getdate.y"
{hh = yypvt[-2]; mm = yypvt[-0]; merid = 24;} break;
case 12:
# line 68 "getdate.y"
{hh = yypvt[-3]; mm = yypvt[-1]; merid = yypvt[-0];} break;
case 13:
# line 70 "getdate.y"
{hh = yypvt[-3]; mm = yypvt[-1]; merid = 24;
daylght = STANDARD; ourzone = -(yypvt[-0]%100 + 60*(yypvt[-0]/100));} break;
case 14:
# line 73 "getdate.y"
{hh = yypvt[-4]; mm = yypvt[-2]; ss = yypvt[-0]; merid = 24;} break;
case 15:
# line 75 "getdate.y"
{hh = yypvt[-5]; mm = yypvt[-3]; ss = yypvt[-1]; merid = yypvt[-0];} break;
case 16:
# line 77 "getdate.y"
{hh = yypvt[-5]; mm = yypvt[-3]; ss = yypvt[-1]; merid = 24;
daylght = STANDARD; ourzone = -(yypvt[-0]%100 + 60*(yypvt[-0]/100));} break;
case 17:
# line 81 "getdate.y"
{ourzone = yypvt[-0]; daylght = STANDARD;} break;
case 18:
# line 83 "getdate.y"
{ourzone = yypvt[-0]; daylght = DAYLIGHT;} break;
case 19:
# line 86 "getdate.y"
{dayord = 1; dayreq = yypvt[-0];} break;
case 20:
# line 88 "getdate.y"
{dayord = 1; dayreq = yypvt[-1];} break;
case 21:
# line 90 "getdate.y"
{dayord = yypvt[-1]; dayreq = yypvt[-0];} break;
case 22:
# line 93 "getdate.y"
{month = yypvt[-2]; day = yypvt[-0];} break;
case 23:
# line 95 "getdate.y"
{month = yypvt[-4]; day = yypvt[-2]; year = yypvt[-0];} break;
case 24:
# line 97 "getdate.y"
{month = yypvt[-1]; day = yypvt[-0];} break;
case 25:
# line 99 "getdate.y"
{month = yypvt[-3]; day = yypvt[-2]; year = yypvt[-0];} break;
case 26:
# line 101 "getdate.y"
{month = yypvt[-0]; day = yypvt[-1];} break;
case 27:
# line 103 "getdate.y"
{month = yypvt[-1]; day = yypvt[-2]; year = yypvt[-0];} break;
case 28:
# line 106 "getdate.y"
{relsec += 60L * yypvt[-1] * yypvt[-0];} break;
case 29:
# line 108 "getdate.y"
{relsec += 60L * yypvt[-1] * yypvt[-0];} break;
case 30:
# line 110 "getdate.y"
{relmonth += yypvt[-1] * yypvt[-0];} break;
case 31:
# line 112 "getdate.y"
{relmonth += yypvt[-1] * yypvt[-0];} break;
case 32:
# line 114 "getdate.y"
{relsec += yypvt[-1];} break;
case 33:
# line 116 "getdate.y"
{relsec += yypvt[-1];} break;
case 34:
# line 118 "getdate.y"
{relsec += 60L * yypvt[-0];} break;
case 35:
# line 120 "getdate.y"
{relmonth += yypvt[-0];} break;
case 36:
# line 122 "getdate.y"
{relsec++;} break;
case 37:
# line 124 "getdate.y"
{relsec = -relsec; relmonth = -relmonth;} break;
}
goto yystack; /* reset registers in driver code */
}