[bison.git] / src / bison.s1

/* -*-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
/* Define __yy_memcpy.  Note that the size argument
   should be passed with type unsigned int, because that is what the non-GCC
   definitions require.  With GCC, __builtin_memcpy takes an arg
   of type size_t, but it can handle unsigned int.  */

#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;
     unsigned 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, unsigned 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 * (unsigned int) sizeof (*yyssp));
      yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
      __yy_memcpy ((char *)yyvs, (char *)yyvs1,
		   size * (unsigned int) sizeof (*yyvsp));
#ifdef YYLSP_NEEDED
      yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
      __yy_memcpy ((char *)yyls, (char *)yyls1,
		   size * (unsigned int) 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	152	\f
5e02f2ad RS	153	/* Define __yy_memcpy. Note that the size argument
	154	should be passed with type unsigned int, because that is what the non-GCC
	155	definitions require. With GCC, __builtin_memcpy takes an arg
	156	of type size_t, but it can handle unsigned int. */
	157
10fa2066	158	#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
c245d0d3	159	#define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT)
10fa2066 RS	160	#else /* not GNU C or C++ */
	161	#ifndef __cplusplus
	162
	163	/* This is the most reliable way to avoid incompatibilities
	164	in available built-in functions on various systems. */
	165	static void
c245d0d3	166	__yy_memcpy (to, from, count)
10fa2066	167	char *to;
c245d0d3	168	char *from;
5e02f2ad	169	unsigned int count;
10fa2066 RS	170	{
	171	register char *f = from;
	172	register char *t = to;
	173	register int i = count;
	174
	175	while (i-- > 0)
	176	t++ = f++;
	177	}
	178
	179	#else /* __cplusplus */
	180
	181	/* This is the most reliable way to avoid incompatibilities
	182	in available built-in functions on various systems. */
	183	static void
5e02f2ad	184	__yy_memcpy (char to, char from, unsigned int count)
10fa2066	185	{
10fa2066	186	register char *t = to;
4cf401b2	187	register char *f = from;
10fa2066 RS	188	register int i = count;
	189
	190	while (i-- > 0)
	191	t++ = f++;
	192	}
	193
	194	#endif
	195	#endif
	196	\f
a8a7082e	197	#line 196 "bison.simple"
b658bf92 RS	198
	199	/* The user can define YYPARSE_PARAM as the name of an argument to be passed
	200	into yyparse. The argument should have type void *.
	201	It should actually point to an object.
	202	Grammar actions can access the variable by casting it
	203	to the proper pointer type. */
	204
	205	#ifdef YYPARSE_PARAM
30f5b1cc RS	206	#ifdef __cplusplus
	207	#define YYPARSE_PARAM_ARG void *YYPARSE_PARAM
	208	#define YYPARSE_PARAM_DECL
	209	#else /* not __cplusplus */
	210	#define YYPARSE_PARAM_ARG YYPARSE_PARAM
b658bf92	211	#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
30f5b1cc RS	212	#endif /* not __cplusplus */
	213	#else /* not YYPARSE_PARAM */
	214	#define YYPARSE_PARAM_ARG
21b3ea15	215	#define YYPARSE_PARAM_DECL
30f5b1cc	216	#endif /* not YYPARSE_PARAM */
b658bf92	217
1b181651 PE	218	/* Prevent warning if -Wstrict-prototypes. */
	219	#ifdef __GNUC__
	220	#ifdef YYPARSE_PARAM
	221	int yyparse (void *);
	222	#else
	223	int yyparse (void);
	224	#endif
	225	#endif
	226
10fa2066	227	int
30f5b1cc	228	yyparse(YYPARSE_PARAM_ARG)
b658bf92	229	YYPARSE_PARAM_DECL
10fa2066 RS	230	{
	231	register int yystate;
	232	register int yyn;
	233	register short *yyssp;
	234	register YYSTYPE *yyvsp;
	235	int yyerrstatus; /* number of tokens to shift before error messages enabled */
c6c88451	236	int yychar1 = 0; /* lookahead token as an internal (translated) token number */
10fa2066 RS	237
	238	short yyssa[YYINITDEPTH]; /* the state stack */
	239	YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
	240
	241	short yyss = yyssa; / refer to the stacks thru separate pointers */
	242	YYSTYPE yyvs = yyvsa; / to allow yyoverflow to reallocate them elsewhere */
	243
	244	#ifdef YYLSP_NEEDED
	245	YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
	246	YYLTYPE *yyls = yylsa;
	247	YYLTYPE *yylsp;
	248
	249	#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
	250	#else
	251	#define YYPOPSTACK (yyvsp--, yyssp--)
	252	#endif
	253
	254	int yystacksize = YYINITDEPTH;
	255
	256	#ifdef YYPURE
	257	int yychar;
	258	YYSTYPE yylval;
	259	int yynerrs;
	260	#ifdef YYLSP_NEEDED
	261	YYLTYPE yylloc;
	262	#endif
	263	#endif
	264
	265	YYSTYPE yyval; /* the variable used to return */
	266	/* semantic values from the action */
	267	/* routines */
	268
	269	int yylen;
	270
	271	#if YYDEBUG != 0
	272	if (yydebug)
	273	fprintf(stderr, "Starting parse\n");
	274	#endif
	275
	276	yystate = 0;
	277	yyerrstatus = 0;
	278	yynerrs = 0;
	279	yychar = YYEMPTY; /* Cause a token to be read. */
	280
	281	/* Initialize stack pointers.
	282	Waste one element of value and location stack
	283	so that they stay on the same level as the state stack.
	284	The wasted elements are never initialized. */
	285
	286	yyssp = yyss - 1;
	287	yyvsp = yyvs;
	288	#ifdef YYLSP_NEEDED
	289	yylsp = yyls;
	290	#endif
	291
	292	/* Push a new state, which is found in yystate . */
	293	/* In all cases, when you get here, the value and location stacks
	294	have just been pushed. so pushing a state here evens the stacks. */
	295	yynewstate:
	296
	297	*++yyssp = yystate;
	298
	299	if (yyssp >= yyss + yystacksize - 1)
	300	{
301	/* Give user a chance to reallocate the stack */
302	/* Use copies of these so that the &'s don't force the real ones into memory. */
303	YYSTYPE *yyvs1 = yyvs;
304	short *yyss1 = yyss;
305	#ifdef YYLSP_NEEDED
306	YYLTYPE *yyls1 = yyls;
307	#endif
308
309	/* Get the current used size of the three stacks, in elements. */
310	int size = yyssp - yyss + 1;
311
312	#ifdef yyoverflow
313	/* Each stack pointer address is followed by the size of
314	the data in use in that stack, in bytes. */
be4bf877 RS	315	#ifdef YYLSP_NEEDED
	316	/* This used to be a conditional around just the two extra args,
	317	but that might be undefined if yyoverflow is a macro. */
10fa2066 RS	318	yyoverflow("parser stack overflow",
	319	&yyss1, size * sizeof (*yyssp),
	320	&yyvs1, size * sizeof (*yyvsp),
10fa2066	321	&yyls1, size * sizeof (*yylsp),
10fa2066	322	&yystacksize);
be4bf877 RS	323	#else
	324	yyoverflow("parser stack overflow",
	325	&yyss1, size * sizeof (*yyssp),
	326	&yyvs1, size * sizeof (*yyvsp),
	327	&yystacksize);
	328	#endif
10fa2066 RS	329
	330	yyss = yyss1; yyvs = yyvs1;
	331	#ifdef YYLSP_NEEDED
	332	yyls = yyls1;
	333	#endif
	334	#else /* no yyoverflow */
	335	/* Extend the stack our own way. */
	336	if (yystacksize >= YYMAXDEPTH)
	337	{
	338	yyerror("parser stack overflow");
	339	return 2;
	340	}
	341	yystacksize *= 2;
	342	if (yystacksize > YYMAXDEPTH)
	343	yystacksize = YYMAXDEPTH;
	344	yyss = (short ) alloca (yystacksize sizeof (*yyssp));
5e02f2ad RS	345	__yy_memcpy ((char )yyss, (char )yyss1,
5e02f2ad RS	346	size * (unsigned int) sizeof (*yyssp));
10fa2066	347	yyvs = (YYSTYPE ) alloca (yystacksize sizeof (*yyvsp));
5e02f2ad RS	348	__yy_memcpy ((char )yyvs, (char )yyvs1,
5e02f2ad RS	349	size * (unsigned int) sizeof (*yyvsp));
10fa2066 RS	350	#ifdef YYLSP_NEEDED
10fa2066 RS	351	yyls = (YYLTYPE ) alloca (yystacksize sizeof (*yylsp));
5e02f2ad RS	352	__yy_memcpy ((char )yyls, (char )yyls1,
5e02f2ad RS	353	size * (unsigned int) sizeof (*yylsp));
10fa2066 RS	354	#endif
	355	#endif /* no yyoverflow */
	356
	357	yyssp = yyss + size - 1;
	358	yyvsp = yyvs + size - 1;
	359	#ifdef YYLSP_NEEDED
	360	yylsp = yyls + size - 1;
	361	#endif
	362
	363	#if YYDEBUG != 0
	364	if (yydebug)
	365	fprintf(stderr, "Stack size increased to %d\n", yystacksize);
	366	#endif
	367
	368	if (yyssp >= yyss + yystacksize - 1)
	369	YYABORT;
	370	}
	371
	372	#if YYDEBUG != 0
	373	if (yydebug)
	374	fprintf(stderr, "Entering state %d\n", yystate);
	375	#endif
	376
	377	goto yybackup;
	378	yybackup:
	379
	380	/* Do appropriate processing given the current state. */
	381	/* Read a lookahead token if we need one and don't already have one. */
	382	/* yyresume: */
	383
	384	/* First try to decide what to do without reference to lookahead token. */
	385
	386	yyn = yypact[yystate];
	387	if (yyn == YYFLAG)
	388	goto yydefault;
	389
	390	/* Not known => get a lookahead token if don't already have one. */
	391
	392	/* yychar is either YYEMPTY or YYEOF
	393	or a valid token in external form. */
	394
	395	if (yychar == YYEMPTY)
	396	{
	397	#if YYDEBUG != 0
	398	if (yydebug)
	399	fprintf(stderr, "Reading a token: ");
	400	#endif
	401	yychar = YYLEX;
	402	}
	403
	404	/* Convert token to internal form (in yychar1) for indexing tables with */
	405
	406	if (yychar <= 0) /* This means end of input. */
	407	{
	408	yychar1 = 0;
	409	yychar = YYEOF; /* Don't call YYLEX any more */
	410
	411	#if YYDEBUG != 0
	412	if (yydebug)
	413	fprintf(stderr, "Now at end of input.\n");
	414	#endif
	415	}
	416	else
	417	{
418	yychar1 = YYTRANSLATE(yychar);
419
420	#if YYDEBUG != 0
421	if (yydebug)
422	{
423	fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]);
424	/* Give the individual parser a way to print the precise meaning
425	of a token, for further debugging info. */
426	#ifdef YYPRINT
427	YYPRINT (stderr, yychar, yylval);
428	#endif
429	fprintf (stderr, ")\n");
430	}
431	#endif
432	}
433
434	yyn += yychar1;
435	if (yyn < 0 \|\| yyn > YYLAST \|\| yycheck[yyn] != yychar1)
436	goto yydefault;
437
438	yyn = yytable[yyn];
439
440	/* yyn is what to do for this token type in this state.
441	Negative => reduce, -yyn is rule number.
442	Positive => shift, yyn is new state.
443	New state is final state => don't bother to shift,
444	just return success.
445	0, or most negative number => error. */
446
447	if (yyn < 0)
448	{
449	if (yyn == YYFLAG)
450	goto yyerrlab;
451	yyn = -yyn;
452	goto yyreduce;
453	}
454	else if (yyn == 0)
455	goto yyerrlab;
456
457	if (yyn == YYFINAL)
458	YYACCEPT;
459
460	/* Shift the lookahead token. */
461
462	#if YYDEBUG != 0
463	if (yydebug)
464	fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
465	#endif
466
467	/* Discard the token being shifted unless it is eof. */
468	if (yychar != YYEOF)
469	yychar = YYEMPTY;
470
471	*++yyvsp = yylval;
472	#ifdef YYLSP_NEEDED
473	*++yylsp = yylloc;
474	#endif
475
476	/* count tokens shifted since error; after three, turn off error status. */
477	if (yyerrstatus) yyerrstatus--;
478
479	yystate = yyn;
480	goto yynewstate;
481
482	/* Do the default action for the current state. */
483	yydefault:
484
485	yyn = yydefact[yystate];
486	if (yyn == 0)
487	goto yyerrlab;
488
489	/* Do a reduction. yyn is the number of a rule to reduce with. */
490	yyreduce:
491	yylen = yyr2[yyn];
fb75fa82 RS	492	if (yylen > 0)
fb75fa82 RS	493	yyval = yyvsp[1-yylen]; /* implement default value of the action */
10fa2066 RS	494
	495	#if YYDEBUG != 0
	496	if (yydebug)
	497	{
	498	int i;
	499
	500	fprintf (stderr, "Reducing via rule %d (line %d), ",
	501	yyn, yyrline[yyn]);
	502
	503	/* Print the symbols being reduced, and their result. */
	504	for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
	505	fprintf (stderr, "%s ", yytname[yyrhs[i]]);
	506	fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
	507	}
	508	#endif
	509
	510	$ /* the action file gets copied in in place of this dollarsign */
a8a7082e	511	#line 498 "bison.simple"
10fa2066 RS	512	\f
	513	yyvsp -= yylen;
	514	yyssp -= yylen;
	515	#ifdef YYLSP_NEEDED
	516	yylsp -= yylen;
	517	#endif
	518
	519	#if YYDEBUG != 0
	520	if (yydebug)
	521	{
	522	short *ssp1 = yyss - 1;
	523	fprintf (stderr, "state stack now");
	524	while (ssp1 != yyssp)
	525	fprintf (stderr, " %d", *++ssp1);
	526	fprintf (stderr, "\n");
	527	}
	528	#endif
	529
	530	*++yyvsp = yyval;
	531
	532	#ifdef YYLSP_NEEDED
	533	yylsp++;
	534	if (yylen == 0)
	535	{
	536	yylsp->first_line = yylloc.first_line;
	537	yylsp->first_column = yylloc.first_column;
	538	yylsp->last_line = (yylsp-1)->last_line;
	539	yylsp->last_column = (yylsp-1)->last_column;
	540	yylsp->text = 0;
	541	}
	542	else
	543	{
	544	yylsp->last_line = (yylsp+yylen-1)->last_line;
	545	yylsp->last_column = (yylsp+yylen-1)->last_column;
	546	}
	547	#endif
	548
	549	/* Now "shift" the result of the reduction.
	550	Determine what state that goes to,
	551	based on the state we popped back to
	552	and the rule number reduced by. */
	553
	554	yyn = yyr1[yyn];
	555
	556	yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
	557	if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
	558	yystate = yytable[yystate];
	559	else
	560	yystate = yydefgoto[yyn - YYNTBASE];
	561
	562	goto yynewstate;
	563
	564	yyerrlab: /* here on detecting error */
	565
	566	if (! yyerrstatus)
	567	/* If not already recovering from an error, report this error. */
	568	{
	569	++yynerrs;
	570
	571	#ifdef YYERROR_VERBOSE
	572	yyn = yypact[yystate];
	573
	574	if (yyn > YYFLAG && yyn < YYLAST)
	575	{
576	int size = 0;
577	char *msg;
578	int x, count;
579
580	count = 0;
581	/* Start X at -yyn if nec to avoid negative indexes in yycheck. */
582	for (x = (yyn < 0 ? -yyn : 0);
583	x < (sizeof(yytname) / sizeof(char *)); x++)
584	if (yycheck[x + yyn] == x)
585	size += strlen(yytname[x]) + 15, count++;
586	msg = (char *) malloc(size + 15);
587	if (msg != 0)
588	{
589	strcpy(msg, "parse error");
590
591	if (count < 5)
592	{
593	count = 0;
594	for (x = (yyn < 0 ? -yyn : 0);
595	x < (sizeof(yytname) / sizeof(char *)); x++)
596	if (yycheck[x + yyn] == x)
597	{
598	strcat(msg, count == 0 ? ", expecting `" : " or `");
599	strcat(msg, yytname[x]);
600	strcat(msg, "'");
601	count++;
602	}
603	}
604	yyerror(msg);
605	free(msg);
606	}
607	else
608	yyerror ("parse error; also virtual memory exceeded");
609	}
610	else
611	#endif /* YYERROR_VERBOSE */
612	yyerror("parse error");
613	}
614
615	goto yyerrlab1;
616	yyerrlab1: /* here on error raised explicitly by an action */
617
618	if (yyerrstatus == 3)
619	{
620	/* if just tried and failed to reuse lookahead token after an error, discard it. */
621
622	/* return failure if at end of input */
623	if (yychar == YYEOF)
624	YYABORT;
625
626	#if YYDEBUG != 0
627	if (yydebug)
628	fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
629	#endif
630
631	yychar = YYEMPTY;
632	}
633
634	/* Else will try to reuse lookahead token
635	after shifting the error token. */
636
637	yyerrstatus = 3; /* Each real token shifted decrements this */
638
639	goto yyerrhandle;
640
641	yyerrdefault: /* current state does not do anything special for the error token. */
642
643	#if 0
644	/* This is wrong; only states that explicitly want error tokens
645	should shift them. */
646	yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
647	if (yyn) goto yydefault;
648	#endif
649
650	yyerrpop: /* pop the current state because it cannot handle the error token */
651
652	if (yyssp == yyss) YYABORT;
653	yyvsp--;
654	yystate = *--yyssp;
655	#ifdef YYLSP_NEEDED
656	yylsp--;
657	#endif
658
659	#if YYDEBUG != 0
660	if (yydebug)
661	{
662	short *ssp1 = yyss - 1;
663	fprintf (stderr, "Error: state stack now");
664	while (ssp1 != yyssp)
665	fprintf (stderr, " %d", *++ssp1);
666	fprintf (stderr, "\n");
667	}
668	#endif
669
670	yyerrhandle:
671
672	yyn = yypact[yystate];
673	if (yyn == YYFLAG)
674	goto yyerrdefault;
675
676	yyn += YYTERROR;
677	if (yyn < 0 \|\| yyn > YYLAST \|\| yycheck[yyn] != YYTERROR)
678	goto yyerrdefault;
679
680	yyn = yytable[yyn];
681	if (yyn < 0)
682	{
683	if (yyn == YYFLAG)
684	goto yyerrpop;
685	yyn = -yyn;
686	goto yyreduce;
687	}
688	else if (yyn == 0)
689	goto yyerrpop;
690
691	if (yyn == YYFINAL)
692	YYACCEPT;
693
694	#if YYDEBUG != 0
695	if (yydebug)
696	fprintf(stderr, "Shifting error token, ");
697	#endif
698
699	*++yyvsp = yylval;
700	#ifdef YYLSP_NEEDED
701	*++yylsp = yylloc;
702	#endif
703
704	yystate = yyn;
705	goto yynewstate;
706	}