
# line 15 "ydate.y"

/* #define YYDEBUG */


# line 20 "ydate.y"
typedef union  {        /* define YYSTYPE */
  int   in;
  char *ch;
} YYSTYPE;
#define YYSUNION /* %union occurred */
#define DIGIT 257
#define MONTH 258
#ifndef YYSTYPE
#define YYSTYPE int
#endif
YYSTYPE yylval, yyval;
#define YYERRCODE 256

# line 60 "ydate.y"



yyerror(s)             /* called for pcyacc syntax error */
char *s;
{
     printf( "YYERROR:%s\n", s );
}


#include <stdio.h>
FILE *yytfilep;
char *yytfilen;
int yytflag = 0;
int svdprd[2];
char svdnams[2][2];

int *yyxi;
int yyexca[] = {
  -1, 1,
  0, -1,
  -2, 0,
  0,
};

#define YYNPROD 12
#define YYLAST 249

int yyact[] = {
       2,      21,      14,      13,      15,       8,      16,      18,
      10,       7,       9,      17,       6,      12,       3,       5,
       1,       0,      11,       0,      14,       0,      19,       0,
       6,       0,       0,      21,      20,      22,      18,       0,
      17,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,      15,      15,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       0,       0,
       0,       0,       0,       0,       0,       0,       4,       8,
       5,
};

int yypact[] = {
   -1000,     -10,   -1000,       0,      -2,    -252,    -255,     -45,
   -1000,   -1000,   -1000,     -38,    -253,    -252,    -252,   -1000,
    -252,   -1000,    -253,     -46,   -1000,    -252,    -253,
};

int yypgo[] = {
       0,      16,      14,      12,      11,       7,
};

int yyr1[] = {
       0,       1,       1,       1,       1,       2,       2,       2,
       3,       4,       5,       5,
};

int yyr2[] = {
       2,       0,       2,       3,       3,       4,       3,       5,
       1,       1,       1,       2,
};

int yychk[] = {
   -1000,      -1,      10,      -2,     256,     258,      -3,      -5,
     257,      10,      10,      -3,      -5,     258,      47,     257,
      44,      -4,      -5,      -5,      -4,      47,      -5,
};

int yydef[] = {
       1,      -2,       2,       0,       0,       0,       0,       8,
      10,       3,       4,       0,       8,       0,       0,      11,
       0,       6,       9,       0,       5,       0,       7,
};

/*****************************************************************/
/*      ABRAXAS SOFTWARE (R) PCYACC (C)COPYRIGHT 1986,1988       */
/* PCYACC LALR parser driver routine -- a table driven procedure */
/* for recognizing sentences of a language defined by the        */
/* grammar that PCYACC analyzes. An LALR parsing table is then   */
/* constructed for the grammar and the skeletal parser uses the  */
/* table when performing syntactical analysis on input source    */
/* programs. The actions associated with grammar rules are       */
/* inserted into a switch statement for execution.               */
/*****************************************************************/


#ifndef YYMAXDEPTH
#define YYMAXDEPTH 200
#endif
#ifndef YYREDMAX
#define YYREDMAX 1000
#endif
#define PCYYFLAG -1000
#define WAS0ERR 0
#define WAS1ERR 1
#define WAS2ERR 2
#define WAS3ERR 3
#define yyclearin pcyytoken = -1
#define yyerrok   pcyyerrfl = 0
YYSTYPE yyv[YYMAXDEPTH];     /* value stack */
int pcyyerrct = 0;           /* error count */
int pcyyerrfl = 0;           /* error flag */
int redseq[YYREDMAX];
int redcnt = 0;
int pcyytoken = -1;          /* input token */


yyparse()
{
  int statestack[YYMAXDEPTH]; /* state stack */
  int      j, m;              /* working index */
  YYSTYPE *yypvt;
  int      tmpstate, tmptoken, *yyps, n;
  YYSTYPE *yypv;


  tmpstate = 0;
  pcyytoken = -1;
#ifdef YYDEBUG
  tmptoken = -1;
#endif
  pcyyerrct = 0;
  pcyyerrfl = 0;
  yyps = &statestack[-1];
  yypv = &yyv[-1];


  enstack:    /* push stack */
#ifdef YYDEBUG
    printf("at state %d, next token %d\n", tmpstate, tmptoken);
#endif
    if (++yyps - &statestack[YYMAXDEPTH] > 0) {
      yyerror("pcyacc internal stack overflow");
      return(1);
    }
    *yyps = tmpstate;
    ++yypv;
    *yypv = yyval;


  newstate:
    n = yypact[tmpstate];
    if (n <= PCYYFLAG) goto defaultact; /*  a simple state */


    if (pcyytoken < 0) if ((pcyytoken=yylex()) < 0) pcyytoken = 0;
    if ((n += pcyytoken) < 0 || n >= YYLAST) goto defaultact;


    if (yychk[n=yyact[n]] == pcyytoken) { /* a shift */
#ifdef YYDEBUG
      tmptoken  = pcyytoken;
#endif
      pcyytoken = -1;
      yyval = yylval;
      tmpstate = n;
      if (pcyyerrfl > 0) --pcyyerrfl;
      goto enstack;
    }


  defaultact:


    if ((n=yydef[tmpstate]) == -2) {
      if (pcyytoken < 0) if ((pcyytoken=yylex())<0) pcyytoken = 0;
      for (yyxi=yyexca; (*yyxi!= (-1)) || (yyxi[1]!=tmpstate); yyxi += 2);
      while (*(yyxi+=2) >= 0) if (*yyxi == pcyytoken) break;
      if ((n=yyxi[1]) < 0) { /* an accept action */
        if (yytflag) {
          int ti; int tj;
          yytfilep = fopen(yytfilen, "w");
          if (yytfilep == NULL) {
            fprintf(stderr, "Can't open t file: %s\n", yytfilen);
            return(0);          }
          for (ti=redcnt-1; ti>=0; ti--) {
            tj = svdprd[redseq[ti]];
            while (strcmp(svdnams[tj], "$EOP"))
              fprintf(yytfilep, "%s ", svdnams[tj++]);
            fprintf(yytfilep, "\n");
          }
          fclose(yytfilep);
        }
        return (0);
      }
    }


    if (n == 0) {        /* error situation */
      switch (pcyyerrfl) {
        case WAS0ERR:          /* an error just occurred */
          yyerror("syntax error");
          yyerrlab:
            ++pcyyerrct;
        case WAS1ERR:
        case WAS2ERR:           /* try again */
          pcyyerrfl = 3;
	   /* find a state for a legal shift action */
          while (yyps >= statestack) {
	     n = yypact[*yyps] + YYERRCODE;
	     if (n >= 0 && n < YYLAST && yychk[yyact[n]] == YYERRCODE) {
	       tmpstate = yyact[n];  /* simulate a shift of "error" */
	       goto enstack;
            }
	     n = yypact[*yyps];


	     /* the current yyps has no shift on "error", pop stack */
#ifdef YYDEBUG
            printf("error: pop state %d, recover state %d\n", *yyps, yyps[-1]);
#endif
	     --yyps;
	     --yypv;
	   }


	   yyabort:
	     return(1);


	 case WAS3ERR:  /* clobber input char */
#ifdef YYDEBUG
          printf("error: discard token %d\n", pcyytoken);
#endif
          if (pcyytoken == 0) goto yyabort; /* quit */
	   pcyytoken = -1;
	   goto newstate;      } /* switch */
    } /* if */


    /* reduction, given a production n */
#ifdef YYDEBUG
    printf("reduce with rule %d\n", n);
#endif
    if (yytflag && redcnt<YYREDMAX) redseq[redcnt++] = n;
    yyps -= yyr2[n];
    yypvt = yypv;
    yypv -= yyr2[n];
    yyval = yypv[1];
    m = n;
    /* find next state from goto table */
    n = yyr1[n];
    j = yypgo[n] + *yyps + 1;
    if (j>=YYLAST || yychk[ tmpstate = yyact[j] ] != -n) tmpstate = yyact[yypgo[n]];
    switch (m) { /* actions associated with grammar rules */
      
      case 4:
# line 35 "ydate.y"
      { yyerrok; /* line error */ } break;
      case 5:
# line 39 "ydate.y"
      { showday( yypvt[-3], yypvt[-2], yypvt[-0] ); } break;
      case 6:
# line 41 "ydate.y"
      { showday( yypvt[-1], yypvt[-2], yypvt[-0] ); } break;
      case 7:
# line 43 "ydate.y"
      { showday( yypvt[-4], yypvt[-2], yypvt[-0] ); } break;
      case 10:
# line 55 "ydate.y"
      { yyval = yypvt[-0]; } break;
      case 11:
# line 57 "ydate.y"
      { yyval = 10 * yypvt[-1] + yypvt[-0]; } break;    }
    goto enstack;
}
