[bison.git] / src / 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.  */

/* As a special exception, when this file is copied by Bison into a
   Bison output file, you may use that output file without restriction.
   This special exception was added by the Free Software Foundation
   in version 1.24 of Bison.  */

/* 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.  */

#ifndef alloca
#ifdef __GNUC__
#define alloca __builtin_alloca
#else /* not GNU C.  */
#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386))
#include <alloca.h>
#else /* not sparc */
/* This used to test MSDOS, but that is a bad idea
   since that is in the user namespace.  */
#if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__)
#include <malloc.h>
#else /* not MSDOS, or __TURBOC__ */
#if defined(_AIX)
#include <malloc.h>
 #pragma alloca
#else /* not MSDOS, or __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.  */

/* 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
\f
#if __GNUC__ > 1		/* GNU C and GNU C++ define this.  */
#define __yy_memcpy(TO,FROM,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_memcpy (to, from, count)
     char *to;
     char *from;
     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_memcpy (char *to, char *from, int count)
{
  register char *t = to;
  register char *f = from;
  register int i = count;

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

#endif
#endif
\f
#line 196 "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
#ifdef __cplusplus
#define YYPARSE_PARAM_ARG void *YYPARSE_PARAM
#define YYPARSE_PARAM_DECL
#else /* not __cplusplus */
#define YYPARSE_PARAM_ARG YYPARSE_PARAM
#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
#endif /* not __cplusplus */
#else /* not YYPARSE_PARAM */
#define YYPARSE_PARAM_ARG
#define YYPARSE_PARAM_DECL
#endif /* not YYPARSE_PARAM */

/* Prevent warning if -Wstrict-prototypes.  */
#ifdef __GNUC__
#ifdef YYPARSE_PARAM
int yyparse (void *);
#else
int yyparse (void);
#endif
#endif

int
yyparse(YYPARSE_PARAM_ARG)
     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_memcpy ((char *)yyss, (char *)yyss1, size * sizeof (*yyssp));
      yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
      __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp));
#ifdef YYLSP_NEEDED
      yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
      __yy_memcpy ((char *)yyls, (char *)yyls1, 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 498 "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
c71f8bba RS	21	/* As a special exception, when this file is copied by Bison into a
	22	Bison output file, you may use that output file without restriction.
	23	This special exception was added by the Free Software Foundation
cfeaeb52	24	in version 1.24 of Bison. */
10fa2066	25
444fbf65 RS	26	/* This is the parser code that is written into each bison parser
	27	when the %semantic_parser declaration is not specified in the grammar.
	28	It was written by Richard Stallman by simplifying the hairy parser
	29	used when %semantic_parser is specified. */
	30
10fa2066 RS	31	#ifndef alloca
	32	#ifdef __GNUC__
	33	#define alloca __builtin_alloca
	34	#else /* not GNU C. */
b6287af6	35	#if (!defined (__STDC__) && defined (sparc)) \|\| defined (__sparc__) \|\| defined (__sparc) \|\| defined (__sgi) \|\| (defined (__sun) && defined (__i386))
10fa2066 RS	36	#include <alloca.h>
10fa2066 RS	37	#else /* not sparc */
db245ba8 RS	38	/* This used to test MSDOS, but that is a bad idea
db245ba8 RS	39	since that is in the user namespace. */
32d5c018	40	#if (defined (_MSDOS) \|\| defined (_MSDOS_)) && !defined (__TURBOC__)
10fa2066	41	#include <malloc.h>
32d5c018	42	#else /* not MSDOS, or __TURBOC__ */
10fa2066 RS	43	#if defined(_AIX)
	44	#include <malloc.h>
	45	#pragma alloca
32d5c018	46	#else /* not MSDOS, or __TURBOC__, or _AIX */
10fa2066 RS	47	#ifdef __hpux
	48	#ifdef __cplusplus
	49	extern "C" {
	50	void *alloca (unsigned int);
	51	};
	52	#else /* not __cplusplus */
	53	void *alloca ();
	54	#endif /* not __cplusplus */
	55	#endif /* __hpux */
	56	#endif /* not _AIX */
32d5c018	57	#endif /* not MSDOS, or __TURBOC__ */
10fa2066 RS	58	#endif /* not sparc. */
	59	#endif /* not GNU C. */
	60	#endif /* alloca not defined. */
	61
10fa2066 RS	62	/* Note: there must be only one dollar sign in this file.
	63	It is replaced by the list of actions, each action
	64	as one case of the switch. */
	65
	66	#define yyerrok (yyerrstatus = 0)
	67	#define yyclearin (yychar = YYEMPTY)
	68	#define YYEMPTY -2
	69	#define YYEOF 0
	70	#define YYACCEPT return(0)
	71	#define YYABORT return(1)
	72	#define YYERROR goto yyerrlab1
	73	/* Like YYERROR except do call yyerror.
	74	This remains here temporarily to ease the
	75	transition to the new meaning of YYERROR, for GCC.
	76	Once GCC version 2 has supplanted version 1, this can go. */
	77	#define YYFAIL goto yyerrlab
	78	#define YYRECOVERING() (!!yyerrstatus)
	79	#define YYBACKUP(token, value) \
	80	do \
	81	if (yychar == YYEMPTY && yylen == 1) \
	82	{ yychar = (token), yylval = (value); \
	83	yychar1 = YYTRANSLATE (yychar); \
	84	YYPOPSTACK; \
	85	goto yybackup; \
	86	} \
	87	else \
	88	{ yyerror ("syntax error: cannot back up"); YYERROR; } \
	89	while (0)
	90
	91	#define YYTERROR 1
	92	#define YYERRCODE 256
	93
	94	#ifndef YYPURE
	95	#define YYLEX yylex()
	96	#endif
	97
	98	#ifdef YYPURE
	99	#ifdef YYLSP_NEEDED
e425e872 RS	100	#ifdef YYLEX_PARAM
	101	#define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM)
	102	#else
10fa2066	103	#define YYLEX yylex(&yylval, &yylloc)
e425e872 RS	104	#endif
	105	#else /* not YYLSP_NEEDED */
	106	#ifdef YYLEX_PARAM
	107	#define YYLEX yylex(&yylval, YYLEX_PARAM)
10fa2066 RS	108	#else
	109	#define YYLEX yylex(&yylval)
	110	#endif
e425e872	111	#endif /* not YYLSP_NEEDED */
10fa2066 RS	112	#endif
	113
	114	/* If nonreentrant, generate the variables here */
	115
	116	#ifndef YYPURE
	117
	118	int yychar; /* the lookahead symbol */
	119	YYSTYPE yylval; /* the semantic value of the */
	120	/* lookahead symbol */
	121
	122	#ifdef YYLSP_NEEDED
	123	YYLTYPE yylloc; /* location data for the lookahead */
	124	/* symbol */
	125	#endif
	126
	127	int yynerrs; /* number of parse errors so far */
	128	#endif /* not YYPURE */
	129
	130	#if YYDEBUG != 0
	131	int yydebug; /* nonzero means print parse trace */
	132	/* Since this is uninitialized, it does not stop multiple parsers
	133	from coexisting. */
	134	#endif
	135
	136	/* YYINITDEPTH indicates the initial size of the parser's stacks */
	137
	138	#ifndef YYINITDEPTH
	139	#define YYINITDEPTH 200
	140	#endif
	141
	142	/* YYMAXDEPTH is the maximum size the stacks can grow to
	143	(effective only if the built-in stack extension method is used). */
	144
	145	#if YYMAXDEPTH == 0
	146	#undef YYMAXDEPTH
	147	#endif
	148
	149	#ifndef YYMAXDEPTH
	150	#define YYMAXDEPTH 10000
	151	#endif
10fa2066 RS	152	\f
10fa2066 RS	153	#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
c245d0d3	154	#define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT)
10fa2066 RS	155	#else /* not GNU C or C++ */
	156	#ifndef __cplusplus
	157
	158	/* This is the most reliable way to avoid incompatibilities
	159	in available built-in functions on various systems. */
	160	static void
c245d0d3	161	__yy_memcpy (to, from, count)
10fa2066	162	char *to;
c245d0d3	163	char *from;
10fa2066 RS	164	int count;
	165	{
	166	register char *f = from;
	167	register char *t = to;
	168	register int i = count;
	169
	170	while (i-- > 0)
	171	t++ = f++;
	172	}
	173
	174	#else /* __cplusplus */
	175
	176	/* This is the most reliable way to avoid incompatibilities
	177	in available built-in functions on various systems. */
	178	static void
c245d0d3	179	__yy_memcpy (char to, char from, int count)
10fa2066	180	{
10fa2066	181	register char *t = to;
4cf401b2	182	register char *f = from;
10fa2066 RS	183	register int i = count;
	184
	185	while (i-- > 0)
	186	t++ = f++;
	187	}
	188
	189	#endif
	190	#endif
	191	\f
a8a7082e	192	#line 196 "bison.simple"
b658bf92 RS	193
	194	/* The user can define YYPARSE_PARAM as the name of an argument to be passed
	195	into yyparse. The argument should have type void *.
	196	It should actually point to an object.
	197	Grammar actions can access the variable by casting it
	198	to the proper pointer type. */
	199
	200	#ifdef YYPARSE_PARAM
30f5b1cc RS	201	#ifdef __cplusplus
	202	#define YYPARSE_PARAM_ARG void *YYPARSE_PARAM
	203	#define YYPARSE_PARAM_DECL
	204	#else /* not __cplusplus */
	205	#define YYPARSE_PARAM_ARG YYPARSE_PARAM
b658bf92	206	#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
30f5b1cc RS	207	#endif /* not __cplusplus */
	208	#else /* not YYPARSE_PARAM */
	209	#define YYPARSE_PARAM_ARG
21b3ea15	210	#define YYPARSE_PARAM_DECL
30f5b1cc	211	#endif /* not YYPARSE_PARAM */
b658bf92	212
1b181651 PE	213	/* Prevent warning if -Wstrict-prototypes. */
	214	#ifdef __GNUC__
	215	#ifdef YYPARSE_PARAM
	216	int yyparse (void *);
	217	#else
	218	int yyparse (void);
	219	#endif
	220	#endif
	221
10fa2066	222	int
30f5b1cc	223	yyparse(YYPARSE_PARAM_ARG)
b658bf92	224	YYPARSE_PARAM_DECL
10fa2066 RS	225	{
	226	register int yystate;
	227	register int yyn;
	228	register short *yyssp;
	229	register YYSTYPE *yyvsp;
	230	int yyerrstatus; /* number of tokens to shift before error messages enabled */
c6c88451	231	int yychar1 = 0; /* lookahead token as an internal (translated) token number */
10fa2066 RS	232
	233	short yyssa[YYINITDEPTH]; /* the state stack */
	234	YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
	235
	236	short yyss = yyssa; / refer to the stacks thru separate pointers */
	237	YYSTYPE yyvs = yyvsa; / to allow yyoverflow to reallocate them elsewhere */
	238
	239	#ifdef YYLSP_NEEDED
	240	YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
	241	YYLTYPE *yyls = yylsa;
	242	YYLTYPE *yylsp;
	243
	244	#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
	245	#else
	246	#define YYPOPSTACK (yyvsp--, yyssp--)
	247	#endif
	248
	249	int yystacksize = YYINITDEPTH;
	250
	251	#ifdef YYPURE
	252	int yychar;
	253	YYSTYPE yylval;
	254	int yynerrs;
	255	#ifdef YYLSP_NEEDED
	256	YYLTYPE yylloc;
	257	#endif
	258	#endif
	259
	260	YYSTYPE yyval; /* the variable used to return */
	261	/* semantic values from the action */
	262	/* routines */
	263
	264	int yylen;
	265
	266	#if YYDEBUG != 0
	267	if (yydebug)
	268	fprintf(stderr, "Starting parse\n");
	269	#endif
	270
	271	yystate = 0;
	272	yyerrstatus = 0;
	273	yynerrs = 0;
	274	yychar = YYEMPTY; /* Cause a token to be read. */
	275
	276	/* Initialize stack pointers.
	277	Waste one element of value and location stack
	278	so that they stay on the same level as the state stack.
	279	The wasted elements are never initialized. */
	280
	281	yyssp = yyss - 1;
	282	yyvsp = yyvs;
	283	#ifdef YYLSP_NEEDED
	284	yylsp = yyls;
	285	#endif
	286
	287	/* Push a new state, which is found in yystate . */
	288	/* In all cases, when you get here, the value and location stacks
	289	have just been pushed. so pushing a state here evens the stacks. */
	290	yynewstate:
	291
	292	*++yyssp = yystate;
	293
	294	if (yyssp >= yyss + yystacksize - 1)
	295	{
296	/* Give user a chance to reallocate the stack */
297	/* Use copies of these so that the &'s don't force the real ones into memory. */
298	YYSTYPE *yyvs1 = yyvs;
299	short *yyss1 = yyss;
300	#ifdef YYLSP_NEEDED
301	YYLTYPE *yyls1 = yyls;
302	#endif
303
304	/* Get the current used size of the three stacks, in elements. */
305	int size = yyssp - yyss + 1;
306
307	#ifdef yyoverflow
308	/* Each stack pointer address is followed by the size of
309	the data in use in that stack, in bytes. */
be4bf877 RS	310	#ifdef YYLSP_NEEDED
	311	/* This used to be a conditional around just the two extra args,
	312	but that might be undefined if yyoverflow is a macro. */
10fa2066 RS	313	yyoverflow("parser stack overflow",
	314	&yyss1, size * sizeof (*yyssp),
	315	&yyvs1, size * sizeof (*yyvsp),
10fa2066	316	&yyls1, size * sizeof (*yylsp),
10fa2066	317	&yystacksize);
be4bf877 RS	318	#else
	319	yyoverflow("parser stack overflow",
	320	&yyss1, size * sizeof (*yyssp),
	321	&yyvs1, size * sizeof (*yyvsp),
	322	&yystacksize);
	323	#endif
10fa2066 RS	324
	325	yyss = yyss1; yyvs = yyvs1;
	326	#ifdef YYLSP_NEEDED
	327	yyls = yyls1;
	328	#endif
	329	#else /* no yyoverflow */
	330	/* Extend the stack our own way. */
	331	if (yystacksize >= YYMAXDEPTH)
	332	{
	333	yyerror("parser stack overflow");
	334	return 2;
	335	}
	336	yystacksize *= 2;
	337	if (yystacksize > YYMAXDEPTH)
	338	yystacksize = YYMAXDEPTH;
	339	yyss = (short ) alloca (yystacksize sizeof (*yyssp));
c245d0d3	340	__yy_memcpy ((char )yyss, (char )yyss1, size * sizeof (*yyssp));
10fa2066	341	yyvs = (YYSTYPE ) alloca (yystacksize sizeof (*yyvsp));
c245d0d3	342	__yy_memcpy ((char )yyvs, (char )yyvs1, size * sizeof (*yyvsp));
10fa2066 RS	343	#ifdef YYLSP_NEEDED
10fa2066 RS	344	yyls = (YYLTYPE ) alloca (yystacksize sizeof (*yylsp));
c245d0d3	345	__yy_memcpy ((char )yyls, (char )yyls1, size * sizeof (*yylsp));
10fa2066 RS	346	#endif
	347	#endif /* no yyoverflow */
	348
	349	yyssp = yyss + size - 1;
	350	yyvsp = yyvs + size - 1;
	351	#ifdef YYLSP_NEEDED
	352	yylsp = yyls + size - 1;
	353	#endif
	354
	355	#if YYDEBUG != 0
	356	if (yydebug)
	357	fprintf(stderr, "Stack size increased to %d\n", yystacksize);
	358	#endif
	359
	360	if (yyssp >= yyss + yystacksize - 1)
	361	YYABORT;
	362	}
	363
	364	#if YYDEBUG != 0
	365	if (yydebug)
	366	fprintf(stderr, "Entering state %d\n", yystate);
	367	#endif
	368
	369	goto yybackup;
	370	yybackup:
	371
	372	/* Do appropriate processing given the current state. */
	373	/* Read a lookahead token if we need one and don't already have one. */
	374	/* yyresume: */
	375
	376	/* First try to decide what to do without reference to lookahead token. */
	377
	378	yyn = yypact[yystate];
	379	if (yyn == YYFLAG)
	380	goto yydefault;
	381
	382	/* Not known => get a lookahead token if don't already have one. */
	383
	384	/* yychar is either YYEMPTY or YYEOF
	385	or a valid token in external form. */
	386
	387	if (yychar == YYEMPTY)
	388	{
	389	#if YYDEBUG != 0
	390	if (yydebug)
	391	fprintf(stderr, "Reading a token: ");
	392	#endif
	393	yychar = YYLEX;
	394	}
	395
	396	/* Convert token to internal form (in yychar1) for indexing tables with */
	397
	398	if (yychar <= 0) /* This means end of input. */
	399	{
	400	yychar1 = 0;
	401	yychar = YYEOF; /* Don't call YYLEX any more */
	402
	403	#if YYDEBUG != 0
	404	if (yydebug)
	405	fprintf(stderr, "Now at end of input.\n");
	406	#endif
	407	}
	408	else
	409	{
410	yychar1 = YYTRANSLATE(yychar);
411
412	#if YYDEBUG != 0
413	if (yydebug)
414	{
415	fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]);
416	/* Give the individual parser a way to print the precise meaning
417	of a token, for further debugging info. */
418	#ifdef YYPRINT
419	YYPRINT (stderr, yychar, yylval);
420	#endif
421	fprintf (stderr, ")\n");
422	}
423	#endif
424	}
425
426	yyn += yychar1;
427	if (yyn < 0 \|\| yyn > YYLAST \|\| yycheck[yyn] != yychar1)
428	goto yydefault;
429
430	yyn = yytable[yyn];
431
432	/* yyn is what to do for this token type in this state.
433	Negative => reduce, -yyn is rule number.
434	Positive => shift, yyn is new state.
435	New state is final state => don't bother to shift,
436	just return success.
437	0, or most negative number => error. */
438
439	if (yyn < 0)
440	{
441	if (yyn == YYFLAG)
442	goto yyerrlab;
443	yyn = -yyn;
444	goto yyreduce;
445	}
446	else if (yyn == 0)
447	goto yyerrlab;
448
449	if (yyn == YYFINAL)
450	YYACCEPT;
451
452	/* Shift the lookahead token. */
453
454	#if YYDEBUG != 0
455	if (yydebug)
456	fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
457	#endif
458
459	/* Discard the token being shifted unless it is eof. */
460	if (yychar != YYEOF)
461	yychar = YYEMPTY;
462
463	*++yyvsp = yylval;
464	#ifdef YYLSP_NEEDED
465	*++yylsp = yylloc;
466	#endif
467
468	/* count tokens shifted since error; after three, turn off error status. */
469	if (yyerrstatus) yyerrstatus--;
470
471	yystate = yyn;
472	goto yynewstate;
473
474	/* Do the default action for the current state. */
475	yydefault:
476
477	yyn = yydefact[yystate];
478	if (yyn == 0)
479	goto yyerrlab;
480
481	/* Do a reduction. yyn is the number of a rule to reduce with. */
482	yyreduce:
483	yylen = yyr2[yyn];
fb75fa82 RS	484	if (yylen > 0)
fb75fa82 RS	485	yyval = yyvsp[1-yylen]; /* implement default value of the action */
10fa2066 RS	486
	487	#if YYDEBUG != 0
	488	if (yydebug)
	489	{
	490	int i;
	491
	492	fprintf (stderr, "Reducing via rule %d (line %d), ",
	493	yyn, yyrline[yyn]);
	494
	495	/* Print the symbols being reduced, and their result. */
	496	for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
	497	fprintf (stderr, "%s ", yytname[yyrhs[i]]);
	498	fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
	499	}
	500	#endif
	501
	502	$ /* the action file gets copied in in place of this dollarsign */
a8a7082e	503	#line 498 "bison.simple"
10fa2066 RS	504	\f
	505	yyvsp -= yylen;
	506	yyssp -= yylen;
	507	#ifdef YYLSP_NEEDED
	508	yylsp -= yylen;
	509	#endif
	510
	511	#if YYDEBUG != 0
	512	if (yydebug)
	513	{
	514	short *ssp1 = yyss - 1;
	515	fprintf (stderr, "state stack now");
	516	while (ssp1 != yyssp)
	517	fprintf (stderr, " %d", *++ssp1);
	518	fprintf (stderr, "\n");
	519	}
	520	#endif
	521
	522	*++yyvsp = yyval;
	523
	524	#ifdef YYLSP_NEEDED
	525	yylsp++;
	526	if (yylen == 0)
	527	{
	528	yylsp->first_line = yylloc.first_line;
	529	yylsp->first_column = yylloc.first_column;
	530	yylsp->last_line = (yylsp-1)->last_line;
	531	yylsp->last_column = (yylsp-1)->last_column;
	532	yylsp->text = 0;
	533	}
	534	else
	535	{
	536	yylsp->last_line = (yylsp+yylen-1)->last_line;
	537	yylsp->last_column = (yylsp+yylen-1)->last_column;
	538	}
	539	#endif
	540
	541	/* Now "shift" the result of the reduction.
	542	Determine what state that goes to,
	543	based on the state we popped back to
	544	and the rule number reduced by. */
	545
	546	yyn = yyr1[yyn];
	547
	548	yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
	549	if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
	550	yystate = yytable[yystate];
	551	else
	552	yystate = yydefgoto[yyn - YYNTBASE];
	553
	554	goto yynewstate;
	555
	556	yyerrlab: /* here on detecting error */
	557
	558	if (! yyerrstatus)
	559	/* If not already recovering from an error, report this error. */
	560	{
	561	++yynerrs;
	562
	563	#ifdef YYERROR_VERBOSE
	564	yyn = yypact[yystate];
	565
	566	if (yyn > YYFLAG && yyn < YYLAST)
	567	{
568	int size = 0;
569	char *msg;
570	int x, count;
571
572	count = 0;
573	/* Start X at -yyn if nec to avoid negative indexes in yycheck. */
574	for (x = (yyn < 0 ? -yyn : 0);
575	x < (sizeof(yytname) / sizeof(char *)); x++)
576	if (yycheck[x + yyn] == x)
577	size += strlen(yytname[x]) + 15, count++;
578	msg = (char *) malloc(size + 15);
579	if (msg != 0)
580	{
581	strcpy(msg, "parse error");
582
583	if (count < 5)
584	{
585	count = 0;
586	for (x = (yyn < 0 ? -yyn : 0);
587	x < (sizeof(yytname) / sizeof(char *)); x++)
588	if (yycheck[x + yyn] == x)
589	{
590	strcat(msg, count == 0 ? ", expecting `" : " or `");
591	strcat(msg, yytname[x]);
592	strcat(msg, "'");
593	count++;
594	}
595	}
596	yyerror(msg);
597	free(msg);
598	}
599	else
600	yyerror ("parse error; also virtual memory exceeded");
601	}
602	else
603	#endif /* YYERROR_VERBOSE */
604	yyerror("parse error");
605	}
606
607	goto yyerrlab1;
608	yyerrlab1: /* here on error raised explicitly by an action */
609
610	if (yyerrstatus == 3)
611	{
612	/* if just tried and failed to reuse lookahead token after an error, discard it. */
613
614	/* return failure if at end of input */
615	if (yychar == YYEOF)
616	YYABORT;
617
618	#if YYDEBUG != 0
619	if (yydebug)
620	fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
621	#endif
622
623	yychar = YYEMPTY;
624	}
625
626	/* Else will try to reuse lookahead token
627	after shifting the error token. */
628
629	yyerrstatus = 3; /* Each real token shifted decrements this */
630
631	goto yyerrhandle;
632
633	yyerrdefault: /* current state does not do anything special for the error token. */
634
635	#if 0
636	/* This is wrong; only states that explicitly want error tokens
637	should shift them. */
638	yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
639	if (yyn) goto yydefault;
640	#endif
641
642	yyerrpop: /* pop the current state because it cannot handle the error token */
643
644	if (yyssp == yyss) YYABORT;
645	yyvsp--;
646	yystate = *--yyssp;
647	#ifdef YYLSP_NEEDED
648	yylsp--;
649	#endif
650
651	#if YYDEBUG != 0
652	if (yydebug)
653	{
654	short *ssp1 = yyss - 1;
655	fprintf (stderr, "Error: state stack now");
656	while (ssp1 != yyssp)
657	fprintf (stderr, " %d", *++ssp1);
658	fprintf (stderr, "\n");
659	}
660	#endif
661
662	yyerrhandle:
663
664	yyn = yypact[yystate];
665	if (yyn == YYFLAG)
666	goto yyerrdefault;
667
668	yyn += YYTERROR;
669	if (yyn < 0 \|\| yyn > YYLAST \|\| yycheck[yyn] != YYTERROR)
670	goto yyerrdefault;
671
672	yyn = yytable[yyn];
673	if (yyn < 0)
674	{
675	if (yyn == YYFLAG)
676	goto yyerrpop;
677	yyn = -yyn;
678	goto yyreduce;
679	}
680	else if (yyn == 0)
681	goto yyerrpop;
682
683	if (yyn == YYFINAL)
684	YYACCEPT;
685
686	#if YYDEBUG != 0
687	if (yydebug)
688	fprintf(stderr, "Shifting error token, ");
689	#endif
690
691	*++yyvsp = yylval;
692	#ifdef YYLSP_NEEDED
693	*++yylsp = yylloc;
694	#endif
695
696	yystate = yyn;
697	goto yynewstate;
698	}