[bison.git] / bison.simple

/* -*-C-*-  Note some compilers choke on comments on `#line' lines.  */
#line 3 "bison.simple"

/* Skeleton output parser for bison,
   Copyright (C) 1984, 1989, 1990 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., 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 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 YYPURE
#define YYLEX		yylex()
#endif

#ifdef YYPURE
#ifdef YYLSP_NEEDED
#ifdef YYLEX_PARAM
#define YYLEX		yylex(&yylval, &yylloc, YYLEX_PARAM)
#else
#define YYLEX		yylex(&yylval, &yylloc)
#endif
#else /* not YYLSP_NEEDED */
#ifdef YYLEX_PARAM
#define YYLEX		yylex(&yylval, YYLEX_PARAM)
#else
#define YYLEX		yylex(&yylval)
#endif
#endif /* not YYLSP_NEEDED */
#endif

/* If nonreentrant, generate the variables here */

#ifndef YYPURE

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  /* not YYPURE */

#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

/* Prevent warning if -Wstrict-prototypes.  */
#ifdef __GNUC__
int yyparse (void);
#endif
\f
#if __GNUC__ > 1		/* GNU C and GNU C++ define this.  */
#define __yy_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
__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++;
}

#else /* __cplusplus */

/* This is the most reliable way to avoid incompatibilities
   in available built-in functions on various systems.  */
static void
__yy_bcopy (char *from, char *to, int count)
{
  register char *f = from;
  register char *t = to;
  register int i = count;

  while (i-- > 0)
    *t++ = *f++;
}

#endif
#endif
\f
#line 192 "bison.simple"

/* The user can define YYPARSE_PARAM as the name of an argument to be passed
   into yyparse.  The argument should have type void *.
   It should actually point to an object.
   Grammar actions can access the variable by casting it
   to the proper pointer type.  */

#ifdef YYPARSE_PARAM
#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
#else
#define YYPARSE_PARAM
#define YYPARSE_PARAM_DECL
#endif

int
yyparse(YYPARSE_PARAM)
     YYPARSE_PARAM_DECL
{
  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 = 0;		/*  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 yylsa[YYINITDEPTH];	/*  the location stack			*/
  YYLTYPE *yyls = yylsa;
  YYLTYPE *yylsp;

#define YYPOPSTACK   (yyvsp--, yyssp--, yylsp--)
#else
#define YYPOPSTACK   (yyvsp--, yyssp--)
#endif

  int yystacksize = YYINITDEPTH;

#ifdef 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.
     The wasted elements are never initialized.  */

  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.  */
#ifdef YYLSP_NEEDED
      /* 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, size * sizeof (*yyssp),
		 &yyvs1, size * sizeof (*yyvsp),
		 &yyls1, size * sizeof (*yylsp),
		 &yystacksize);
#else
      yyoverflow("parser stack overflow",
		 &yyss1, size * sizeof (*yyssp),
		 &yyvs1, size * sizeof (*yyvsp),
		 &yystacksize);
#endif

      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

  goto 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 == 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", yychar, yytname[yychar1]);
	  /* Give the individual parser a way to print the precise meaning
	     of a token, for further debugging info.  */
#ifdef YYPRINT
	  YYPRINT (stderr, yychar, yylval);
#endif
	  fprintf (stderr, ")\n");
	}
#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];
  if (yylen > 0)
    yyval = yyvsp[1-yylen]; /* implement default value of the action */

#if YYDEBUG != 0
  if (yydebug)
    {
      int i;

      fprintf (stderr, "Reducing via rule %d (line %d), ",
	       yyn, yyrline[yyn]);

      /* Print the symbols being reduced, and their result.  */
      for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
	fprintf (stderr, "%s ", yytname[yyrhs[i]]);
      fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
    }
#endif

$   /* the action file gets copied in in place of this dollarsign */
#line 487 "bison.simple"
\f
  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;
	  /* Start X at -yyn if nec to avoid negative indexes in yycheck.  */
	  for (x = (yyn < 0 ? -yyn : 0);
	       x < (sizeof(yytname) / sizeof(char *)); x++)
	    if (yycheck[x + yyn] == x)
	      size += strlen(yytname[x]) + 15, count++;
	  msg = (char *) malloc(size + 15);
	  if (msg != 0)
	    {
	      strcpy(msg, "parse error");

	      if (count < 5)
		{
		  count = 0;
		  for (x = (yyn < 0 ? -yyn : 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
	    yyerror ("parse error; also virtual memory exceeded");
	}
      else
#endif /* YYERROR_VERBOSE */
	yyerror("parse error");
    }

  goto yyerrlab1;
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;
}
Commit	Line	Data
10fa2066 RS	1	/* --C-- Note some compilers choke on comments on `#line' lines. */
	2	#line 3 "bison.simple"
	3
	4	/* Skeleton output parser for bison,
21b14802	5	Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc.
10fa2066 RS	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
21b14802	9	the Free Software Foundation; either version 2, or (at your option)
10fa2066 RS	10	any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	20
	21
	22	#ifndef alloca
	23	#ifdef __GNUC__
	24	#define alloca __builtin_alloca
	25	#else /* not GNU C. */
	26	#if (!defined (__STDC__) && defined (sparc)) \|\| defined (__sparc__) \|\| defined (__sparc) \|\| defined (__sgi)
	27	#include <alloca.h>
	28	#else /* not sparc */
	29	#if defined (MSDOS) && !defined (__TURBOC__)
	30	#include <malloc.h>
	31	#else /* not MSDOS, or __TURBOC__ */
	32	#if defined(_AIX)
	33	#include <malloc.h>
	34	#pragma alloca
	35	#else /* not MSDOS, __TURBOC__, or _AIX */
	36	#ifdef __hpux
	37	#ifdef __cplusplus
	38	extern "C" {
	39	void *alloca (unsigned int);
	40	};
	41	#else /* not __cplusplus */
	42	void *alloca ();
	43	#endif /* not __cplusplus */
	44	#endif /* __hpux */
	45	#endif /* not _AIX */
	46	#endif /* not MSDOS, or __TURBOC__ */
	47	#endif /* not sparc. */
	48	#endif /* not GNU C. */
	49	#endif /* alloca not defined. */
	50
	51	/* This is the parser code that is written into each bison parser
	52	when the %semantic_parser declaration is not specified in the grammar.
	53	It was written by Richard Stallman by simplifying the hairy parser
	54	used when %semantic_parser is specified. */
	55
	56	/* Note: there must be only one dollar sign in this file.
	57	It is replaced by the list of actions, each action
	58	as one case of the switch. */
	59
	60	#define yyerrok (yyerrstatus = 0)
	61	#define yyclearin (yychar = YYEMPTY)
	62	#define YYEMPTY -2
	63	#define YYEOF 0
	64	#define YYACCEPT return(0)
	65	#define YYABORT return(1)
	66	#define YYERROR goto yyerrlab1
	67	/* Like YYERROR except do call yyerror.
	68	This remains here temporarily to ease the
	69	transition to the new meaning of YYERROR, for GCC.
	70	Once GCC version 2 has supplanted version 1, this can go. */
	71	#define YYFAIL goto yyerrlab
	72	#define YYRECOVERING() (!!yyerrstatus)
	73	#define YYBACKUP(token, value) \
74	do \
75	if (yychar == YYEMPTY && yylen == 1) \
76	{ yychar = (token), yylval = (value); \
77	yychar1 = YYTRANSLATE (yychar); \
78	YYPOPSTACK; \
79	goto yybackup; \
80	} \
81	else \
82	{ yyerror ("syntax error: cannot back up"); YYERROR; } \
83	while (0)
84
85	#define YYTERROR 1
86	#define YYERRCODE 256
87
88	#ifndef YYPURE
89	#define YYLEX yylex()
90	#endif
91
92	#ifdef YYPURE
93	#ifdef YYLSP_NEEDED
e425e872 RS	94	#ifdef YYLEX_PARAM
	95	#define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM)
	96	#else
10fa2066	97	#define YYLEX yylex(&yylval, &yylloc)
e425e872 RS	98	#endif
	99	#else /* not YYLSP_NEEDED */
	100	#ifdef YYLEX_PARAM
	101	#define YYLEX yylex(&yylval, YYLEX_PARAM)
10fa2066 RS	102	#else
	103	#define YYLEX yylex(&yylval)
	104	#endif
e425e872	105	#endif /* not YYLSP_NEEDED */
10fa2066 RS	106	#endif
	107
	108	/* If nonreentrant, generate the variables here */
	109
	110	#ifndef YYPURE
	111
	112	int yychar; /* the lookahead symbol */
	113	YYSTYPE yylval; /* the semantic value of the */
	114	/* lookahead symbol */
	115
	116	#ifdef YYLSP_NEEDED
	117	YYLTYPE yylloc; /* location data for the lookahead */
	118	/* symbol */
	119	#endif
	120
	121	int yynerrs; /* number of parse errors so far */
	122	#endif /* not YYPURE */
	123
	124	#if YYDEBUG != 0
	125	int yydebug; /* nonzero means print parse trace */
	126	/* Since this is uninitialized, it does not stop multiple parsers
	127	from coexisting. */
	128	#endif
	129
	130	/* YYINITDEPTH indicates the initial size of the parser's stacks */
	131
	132	#ifndef YYINITDEPTH
	133	#define YYINITDEPTH 200
	134	#endif
	135
	136	/* YYMAXDEPTH is the maximum size the stacks can grow to
	137	(effective only if the built-in stack extension method is used). */
	138
	139	#if YYMAXDEPTH == 0
	140	#undef YYMAXDEPTH
	141	#endif
	142
	143	#ifndef YYMAXDEPTH
	144	#define YYMAXDEPTH 10000
	145	#endif
	146
	147	/* Prevent warning if -Wstrict-prototypes. */
	148	#ifdef __GNUC__
	149	int yyparse (void);
	150	#endif
	151	\f
	152	#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
	153	#define __yy_bcopy(FROM,TO,COUNT) __builtin_memcpy(TO,FROM,COUNT)
	154	#else /* not GNU C or C++ */
	155	#ifndef __cplusplus
	156
	157	/* This is the most reliable way to avoid incompatibilities
	158	in available built-in functions on various systems. */
	159	static void
	160	__yy_bcopy (from, to, count)
	161	char *from;
	162	char *to;
	163	int count;
	164	{
	165	register char *f = from;
	166	register char *t = to;
	167	register int i = count;
	168
	169	while (i-- > 0)
170	t++ = f++;
171	}
172
173	#else /* __cplusplus */
174
175	/* This is the most reliable way to avoid incompatibilities
176	in available built-in functions on various systems. */
177	static void
178	__yy_bcopy (char from, char to, int count)
179	{
180	register char *f = from;
181	register char *t = to;
182	register int i = count;
183
184	while (i-- > 0)
185	t++ = f++;
186	}
187
188	#endif
189	#endif
190	\f
cc90caac	191	#line 192 "bison.simple"
b658bf92 RS	192
	193	/* The user can define YYPARSE_PARAM as the name of an argument to be passed
	194	into yyparse. The argument should have type void *.
	195	It should actually point to an object.
	196	Grammar actions can access the variable by casting it
	197	to the proper pointer type. */
	198
	199	#ifdef YYPARSE_PARAM
	200	#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
	201	#else
	202	#define YYPARSE_PARAM
21b3ea15	203	#define YYPARSE_PARAM_DECL
b658bf92 RS	204	#endif
b658bf92 RS	205
10fa2066	206	int
b658bf92 RS	207	yyparse(YYPARSE_PARAM)
b658bf92 RS	208	YYPARSE_PARAM_DECL
10fa2066 RS	209	{
	210	register int yystate;
	211	register int yyn;
	212	register short *yyssp;
	213	register YYSTYPE *yyvsp;
	214	int yyerrstatus; /* number of tokens to shift before error messages enabled */
c6c88451	215	int yychar1 = 0; /* lookahead token as an internal (translated) token number */
10fa2066 RS	216
	217	short yyssa[YYINITDEPTH]; /* the state stack */
	218	YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
	219
	220	short yyss = yyssa; / refer to the stacks thru separate pointers */
	221	YYSTYPE yyvs = yyvsa; / to allow yyoverflow to reallocate them elsewhere */
	222
	223	#ifdef YYLSP_NEEDED
	224	YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
	225	YYLTYPE *yyls = yylsa;
	226	YYLTYPE *yylsp;
	227
	228	#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
	229	#else
	230	#define YYPOPSTACK (yyvsp--, yyssp--)
	231	#endif
	232
	233	int yystacksize = YYINITDEPTH;
	234
	235	#ifdef YYPURE
	236	int yychar;
	237	YYSTYPE yylval;
	238	int yynerrs;
	239	#ifdef YYLSP_NEEDED
	240	YYLTYPE yylloc;
	241	#endif
	242	#endif
	243
	244	YYSTYPE yyval; /* the variable used to return */
	245	/* semantic values from the action */
	246	/* routines */
	247
	248	int yylen;
	249
	250	#if YYDEBUG != 0
	251	if (yydebug)
	252	fprintf(stderr, "Starting parse\n");
	253	#endif
	254
	255	yystate = 0;
	256	yyerrstatus = 0;
	257	yynerrs = 0;
	258	yychar = YYEMPTY; /* Cause a token to be read. */
	259
	260	/* Initialize stack pointers.
	261	Waste one element of value and location stack
	262	so that they stay on the same level as the state stack.
	263	The wasted elements are never initialized. */
	264
	265	yyssp = yyss - 1;
	266	yyvsp = yyvs;
	267	#ifdef YYLSP_NEEDED
	268	yylsp = yyls;
	269	#endif
	270
	271	/* Push a new state, which is found in yystate . */
	272	/* In all cases, when you get here, the value and location stacks
	273	have just been pushed. so pushing a state here evens the stacks. */
	274	yynewstate:
	275
	276	*++yyssp = yystate;
	277
	278	if (yyssp >= yyss + yystacksize - 1)
	279	{
280	/* Give user a chance to reallocate the stack */
281	/* Use copies of these so that the &'s don't force the real ones into memory. */
282	YYSTYPE *yyvs1 = yyvs;
283	short *yyss1 = yyss;
284	#ifdef YYLSP_NEEDED
285	YYLTYPE *yyls1 = yyls;
286	#endif
287
288	/* Get the current used size of the three stacks, in elements. */
289	int size = yyssp - yyss + 1;
290
291	#ifdef yyoverflow
292	/* Each stack pointer address is followed by the size of
293	the data in use in that stack, in bytes. */
be4bf877 RS	294	#ifdef YYLSP_NEEDED
	295	/* This used to be a conditional around just the two extra args,
	296	but that might be undefined if yyoverflow is a macro. */
10fa2066 RS	297	yyoverflow("parser stack overflow",
	298	&yyss1, size * sizeof (*yyssp),
	299	&yyvs1, size * sizeof (*yyvsp),
10fa2066	300	&yyls1, size * sizeof (*yylsp),
10fa2066	301	&yystacksize);
be4bf877 RS	302	#else
	303	yyoverflow("parser stack overflow",
	304	&yyss1, size * sizeof (*yyssp),
	305	&yyvs1, size * sizeof (*yyvsp),
	306	&yystacksize);
	307	#endif
10fa2066 RS	308
	309	yyss = yyss1; yyvs = yyvs1;
	310	#ifdef YYLSP_NEEDED
	311	yyls = yyls1;
	312	#endif
	313	#else /* no yyoverflow */
	314	/* Extend the stack our own way. */
	315	if (yystacksize >= YYMAXDEPTH)
	316	{
	317	yyerror("parser stack overflow");
	318	return 2;
	319	}
	320	yystacksize *= 2;
	321	if (yystacksize > YYMAXDEPTH)
	322	yystacksize = YYMAXDEPTH;
	323	yyss = (short ) alloca (yystacksize sizeof (*yyssp));
	324	__yy_bcopy ((char )yyss1, (char )yyss, size * sizeof (*yyssp));
	325	yyvs = (YYSTYPE ) alloca (yystacksize sizeof (*yyvsp));
	326	__yy_bcopy ((char )yyvs1, (char )yyvs, size * sizeof (*yyvsp));
	327	#ifdef YYLSP_NEEDED
	328	yyls = (YYLTYPE ) alloca (yystacksize sizeof (*yylsp));
	329	__yy_bcopy ((char )yyls1, (char )yyls, size * sizeof (*yylsp));
	330	#endif
	331	#endif /* no yyoverflow */
	332
	333	yyssp = yyss + size - 1;
	334	yyvsp = yyvs + size - 1;
	335	#ifdef YYLSP_NEEDED
	336	yylsp = yyls + size - 1;
	337	#endif
	338
	339	#if YYDEBUG != 0
	340	if (yydebug)
	341	fprintf(stderr, "Stack size increased to %d\n", yystacksize);
	342	#endif
	343
	344	if (yyssp >= yyss + yystacksize - 1)
	345	YYABORT;
	346	}
	347
	348	#if YYDEBUG != 0
	349	if (yydebug)
	350	fprintf(stderr, "Entering state %d\n", yystate);
	351	#endif
	352
	353	goto yybackup;
	354	yybackup:
	355
	356	/* Do appropriate processing given the current state. */
	357	/* Read a lookahead token if we need one and don't already have one. */
	358	/* yyresume: */
	359
	360	/* First try to decide what to do without reference to lookahead token. */
	361
	362	yyn = yypact[yystate];
	363	if (yyn == YYFLAG)
	364	goto yydefault;
	365
	366	/* Not known => get a lookahead token if don't already have one. */
	367
	368	/* yychar is either YYEMPTY or YYEOF
	369	or a valid token in external form. */
	370
	371	if (yychar == YYEMPTY)
372	{
373	#if YYDEBUG != 0
374	if (yydebug)
375	fprintf(stderr, "Reading a token: ");
376	#endif
377	yychar = YYLEX;
378	}
379
380	/* Convert token to internal form (in yychar1) for indexing tables with */
381
382	if (yychar <= 0) /* This means end of input. */
383	{
384	yychar1 = 0;
385	yychar = YYEOF; /* Don't call YYLEX any more */
386
387	#if YYDEBUG != 0
388	if (yydebug)
389	fprintf(stderr, "Now at end of input.\n");
390	#endif
391	}
392	else
393	{
394	yychar1 = YYTRANSLATE(yychar);
395
396	#if YYDEBUG != 0
397	if (yydebug)
398	{
399	fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]);
400	/* Give the individual parser a way to print the precise meaning
401	of a token, for further debugging info. */
402	#ifdef YYPRINT
403	YYPRINT (stderr, yychar, yylval);
404	#endif
405	fprintf (stderr, ")\n");
406	}
407	#endif
408	}
409
410	yyn += yychar1;
411	if (yyn < 0 \|\| yyn > YYLAST \|\| yycheck[yyn] != yychar1)
412	goto yydefault;
413
414	yyn = yytable[yyn];
415
416	/* yyn is what to do for this token type in this state.
417	Negative => reduce, -yyn is rule number.
418	Positive => shift, yyn is new state.
419	New state is final state => don't bother to shift,
420	just return success.
421	0, or most negative number => error. */
422
423	if (yyn < 0)
424	{
425	if (yyn == YYFLAG)
426	goto yyerrlab;
427	yyn = -yyn;
428	goto yyreduce;
429	}
430	else if (yyn == 0)
431	goto yyerrlab;
432
433	if (yyn == YYFINAL)
434	YYACCEPT;
435
436	/* Shift the lookahead token. */
437
438	#if YYDEBUG != 0
439	if (yydebug)
440	fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
441	#endif
442
443	/* Discard the token being shifted unless it is eof. */
444	if (yychar != YYEOF)
445	yychar = YYEMPTY;
446
447	*++yyvsp = yylval;
448	#ifdef YYLSP_NEEDED
449	*++yylsp = yylloc;
450	#endif
451
452	/* count tokens shifted since error; after three, turn off error status. */
453	if (yyerrstatus) yyerrstatus--;
454
455	yystate = yyn;
456	goto yynewstate;
457
458	/* Do the default action for the current state. */
459	yydefault:
460
461	yyn = yydefact[yystate];
462	if (yyn == 0)
463	goto yyerrlab;
464
465	/* Do a reduction. yyn is the number of a rule to reduce with. */
466	yyreduce:
467	yylen = yyr2[yyn];
fb75fa82 RS	468	if (yylen > 0)
fb75fa82 RS	469	yyval = yyvsp[1-yylen]; /* implement default value of the action */
10fa2066 RS	470
	471	#if YYDEBUG != 0
	472	if (yydebug)
	473	{
	474	int i;
	475
	476	fprintf (stderr, "Reducing via rule %d (line %d), ",
	477	yyn, yyrline[yyn]);
	478
	479	/* Print the symbols being reduced, and their result. */
	480	for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
	481	fprintf (stderr, "%s ", yytname[yyrhs[i]]);
	482	fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
	483	}
	484	#endif
	485
	486	$ /* the action file gets copied in in place of this dollarsign */
cc90caac	487	#line 487 "bison.simple"
10fa2066 RS	488	\f
	489	yyvsp -= yylen;
	490	yyssp -= yylen;
	491	#ifdef YYLSP_NEEDED
	492	yylsp -= yylen;
	493	#endif
	494
	495	#if YYDEBUG != 0
	496	if (yydebug)
	497	{
	498	short *ssp1 = yyss - 1;
	499	fprintf (stderr, "state stack now");
	500	while (ssp1 != yyssp)
	501	fprintf (stderr, " %d", *++ssp1);
	502	fprintf (stderr, "\n");
	503	}
	504	#endif
	505
	506	*++yyvsp = yyval;
	507
	508	#ifdef YYLSP_NEEDED
	509	yylsp++;
	510	if (yylen == 0)
	511	{
	512	yylsp->first_line = yylloc.first_line;
	513	yylsp->first_column = yylloc.first_column;
	514	yylsp->last_line = (yylsp-1)->last_line;
	515	yylsp->last_column = (yylsp-1)->last_column;
	516	yylsp->text = 0;
	517	}
	518	else
	519	{
	520	yylsp->last_line = (yylsp+yylen-1)->last_line;
	521	yylsp->last_column = (yylsp+yylen-1)->last_column;
	522	}
	523	#endif
	524
	525	/* Now "shift" the result of the reduction.
	526	Determine what state that goes to,
	527	based on the state we popped back to
	528	and the rule number reduced by. */
	529
	530	yyn = yyr1[yyn];
	531
	532	yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
	533	if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
	534	yystate = yytable[yystate];
	535	else
	536	yystate = yydefgoto[yyn - YYNTBASE];
	537
	538	goto yynewstate;
	539
	540	yyerrlab: /* here on detecting error */
	541
	542	if (! yyerrstatus)
	543	/* If not already recovering from an error, report this error. */
	544	{
	545	++yynerrs;
	546
	547	#ifdef YYERROR_VERBOSE
	548	yyn = yypact[yystate];
	549
	550	if (yyn > YYFLAG && yyn < YYLAST)
	551	{
552	int size = 0;
553	char *msg;
554	int x, count;
555
556	count = 0;
557	/* Start X at -yyn if nec to avoid negative indexes in yycheck. */
558	for (x = (yyn < 0 ? -yyn : 0);
559	x < (sizeof(yytname) / sizeof(char *)); x++)
560	if (yycheck[x + yyn] == x)
561	size += strlen(yytname[x]) + 15, count++;
562	msg = (char *) malloc(size + 15);
563	if (msg != 0)
564	{
565	strcpy(msg, "parse error");
566
567	if (count < 5)
568	{
569	count = 0;
570	for (x = (yyn < 0 ? -yyn : 0);
571	x < (sizeof(yytname) / sizeof(char *)); x++)
572	if (yycheck[x + yyn] == x)
573	{
574	strcat(msg, count == 0 ? ", expecting `" : " or `");
575	strcat(msg, yytname[x]);
576	strcat(msg, "'");
577	count++;
578	}
579	}
580	yyerror(msg);
581	free(msg);
582	}
583	else
584	yyerror ("parse error; also virtual memory exceeded");
585	}
586	else
587	#endif /* YYERROR_VERBOSE */
588	yyerror("parse error");
589	}
590
591	goto yyerrlab1;
592	yyerrlab1: /* here on error raised explicitly by an action */
593
594	if (yyerrstatus == 3)
595	{
596	/* if just tried and failed to reuse lookahead token after an error, discard it. */
597
598	/* return failure if at end of input */
599	if (yychar == YYEOF)
600	YYABORT;
601
602	#if YYDEBUG != 0
603	if (yydebug)
604	fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
605	#endif
606
607	yychar = YYEMPTY;
608	}
609
610	/* Else will try to reuse lookahead token
611	after shifting the error token. */
612
613	yyerrstatus = 3; /* Each real token shifted decrements this */
614
615	goto yyerrhandle;
616
617	yyerrdefault: /* current state does not do anything special for the error token. */
618
619	#if 0
620	/* This is wrong; only states that explicitly want error tokens
621	should shift them. */
622	yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
623	if (yyn) goto yydefault;
624	#endif
625
626	yyerrpop: /* pop the current state because it cannot handle the error token */
627
628	if (yyssp == yyss) YYABORT;
629	yyvsp--;
630	yystate = *--yyssp;
631	#ifdef YYLSP_NEEDED
632	yylsp--;
633	#endif
634
635	#if YYDEBUG != 0
636	if (yydebug)
637	{
638	short *ssp1 = yyss - 1;
639	fprintf (stderr, "Error: state stack now");
640	while (ssp1 != yyssp)
641	fprintf (stderr, " %d", *++ssp1);
642	fprintf (stderr, "\n");
643	}
644	#endif
645
646	yyerrhandle:
647
648	yyn = yypact[yystate];
649	if (yyn == YYFLAG)
650	goto yyerrdefault;
651
652	yyn += YYTERROR;
653	if (yyn < 0 \|\| yyn > YYLAST \|\| yycheck[yyn] != YYTERROR)
654	goto yyerrdefault;
655
656	yyn = yytable[yyn];
657	if (yyn < 0)
658	{
659	if (yyn == YYFLAG)
660	goto yyerrpop;
661	yyn = -yyn;
662	goto yyreduce;
663	}
664	else if (yyn == 0)
665	goto yyerrpop;
666
667	if (yyn == YYFINAL)
668	YYACCEPT;
669
670	#if YYDEBUG != 0
671	if (yydebug)
672	fprintf(stderr, "Shifting error token, ");
673	#endif
674
675	*++yyvsp = yylval;
676	#ifdef YYLSP_NEEDED
677	*++yylsp = yylloc;
678	#endif
679
680	yystate = yyn;
681	goto yynewstate;
682	}