RasTop Code

 /**************************************************************************
 *                                                                         *
 *                                 RasTop                                  *
 *                                                                         *
 *                 Molecular Graphics Visualisation Tool                   *
 *                                                                         *
 *                                                                         *
 * 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 of the License.              *
 *                                                                         *
 * This program is distributed in the hope that it will be useful, but     *
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTA-   *
 * BILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public  *
 * License for more details (license.txt file ).                           *
 *                                                                         *
 * 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., *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA                   *
 *                                                                         *
 ***************************************************************************/

/* Authors:
 *
 * Please consult the help manual for more information about copyright 
 * holders and version history of RasTop/RasMol source. 
 *
 * Make sure to add your name to this list if you modify this file.
 *
 * Herbert J. Bernstein
 * Christian Duqué
 * Gary Grossman
 * Marco Molinaro
 * Arne Mueller
 * Naoum Salamé
 * Roger Sayle
 */


/**********************************************************************
 *  A Bison parser, made from cbf.stx.y                               *
 *  by  GNU Bison version 1.25                                        *
 *                                                                    *
 *  Hand modified for RasMol coding conventions, and to avoid alloca  *
 *  calls.                                                            *
 *                                                                    *
 *  Original grammar for CBFlib 0.1  by Paul Ellis, Apr 98            *
 *  Mods for CBFlib 0.2 by H. J. Bernstein, Aug 98                    *
 *  Mods for RasMol, H. J. Bernstein,                                 *
 *    yaya@bernstein-plus-sons.com, 2 Sep 98                          *
 *                                                                    *
 **********************************************************************/

/**********************************************************************
 *                                 NOTICE                             *
 * Creative endeavors depend on the lively exchange of ideas. There   *
 * are laws and customs which establish rights and responsibilities   *
 * for authors and the users of what authors create.  This notice     *
 * is not intended to prevent you from using the software and         *
 * documents in this package, but to ensure that there are no         *
 * misunderstandings about terms and conditions of such use.          *
 *                                                                    *
 * Please read the following notice carefully.  If you do not         *
 * understand any portion of this notice, please seek appropriate     *
 * professional legal advice before making use of the software and    *
 * documents included in this software package.  In addition to       *
 * whatever other steps you may be obliged to take to respect the     *
 * intellectual property rights of the various parties involved, if   *
 * you do make use of the software and documents in this package,     *
 * please give credit where credit is due by citing this package,     *
 * its authors and the URL or other source from which you obtained    *
 * it, or equivalent primary references in the literature with the    *
 * same authors.                                                      *
 *                                                                    *
 * Some of the software and documents included within this software   *
 * package are the intellectual property of various parties, and      *
 * placement in this package does not in any way imply that any       *
 * such rights have in any way been waived or diminished.             *
 *                                                                    *
 * With respect to any software or documents for which a copyright    *
 * exists, ALL RIGHTS ARE RESERVED TO THE OWNERS OF SUCH COPYRIGHT.   *
 *                                                                    *
 * Even though the authors of the various documents and software      *
 * found here have made a good faith effort to ensure that the        *
 * documents are correct and that the software performs according     *
 * to its documentation, and we would greatly appreciate hearing of   *
 * any problems you may encounter, the programs and documents any     *
 * files created by the programs are provided **AS IS** without any   *
 * warranty as to correctness, merchantability or fitness for any     *
 * particular or general use.                                         *
 *                                                                    *
 * THE RESPONSIBILITY FOR ANY ADVERSE CONSEQUENCES FROM THE USE OF    *
 * PROGRAMS OR DOCUMENTS OR ANY FILE OR FILES CREATED BY USE OF THE   *
 * PROGRAMS OR DOCUMENTS LIES SOLELY WITH THE USERS OF THE PROGRAMS   *
 * OR DOCUMENTS OR FILE OR FILES AND NOT WITH AUTHORS OF THE          *
 * PROGRAMS OR DOCUMENTS.                                             *
 **********************************************************************/

/**********************************************************************
 *                             The IUCr Policy                        *
 *                                    on                              *
 *     the Use of the Crystallographic Information File (CIF)         *
 *                                                                    *
 * The Crystallographic Information File (Hall, Allen & Brown,        *
 * 1991) is, as of January 1992, the recommended method for           *
 * submitting publications to Acta Crystallographica Section C. The   *
 * International Union of Crystallography holds the Copyright on      *
 * the CIF, and has applied for Patents on the STAR File syntax       *
 * which is the basis for the CIF format.                             *
 *                                                                    *
 * It is a principal objective of the IUCr to promote the use of      *
 * CIF for the exchange and storage of scientific data. The IUCr's    *
 * sponsorship of the CIF development was motivated by its            *
 * responsibility to its scientific journals, which set the           *
 * standards in crystallographic publishing. The IUCr intends that    *
 * CIFs will be used increasingly for electronic submission of        *
 * manuscripts to these journals in future. The IUCr recognises       *
 * that, if the CIF and the STAR File are to be adopted as a means    *
 * for universal data exchange, the syntax of these files must be     *
 * strictly and uniformly adhered to. Even small deviations from      *
 * the syntax would ultimately cause the demise of the universal      *
 * file concept. Through its Copyrights and Patents the IUCr has      *
 * taken the steps needed to ensure strict conformance with this      *
 * syntax.                                                            *
 *                                                                    *
 * The IUCr policy on the use of the CIF and STAR File processes is   *
 * as follows:                                                        *
 * _________________________________________________________________  *
 *                                                                    *
 *  * 1 CIFs and STAR Files may be generated, stored or transmitted,  *
 *    without permission or charge, provided their purpose is not     *
 *    specifically for profit or commercial gain, and provided that   *
 *    the published syntax is strictly adhered to.                    *
 *  * 2 Computer software may be developed for use with CIFs or STAR  *
 *    files, without permission or charge, provided it is distributed *
 *    in the public domain. This condition also applies to software   *
 *    for which a charge is made, provided that its primary function  *
 *    is for use with files that satisfy condition 1 and that it is   *
 *    distributed as a minor component of a larger package of         *
 *    software.                                                       *
 *  * 3 Permission will be granted for the use of CIFs and STAR Files *
 *    for specific commercial purposes (such as databases or network  *
 *    exchange processes), and for the distribution of commercial     *
 *    CIF/STAR software, on written application to the IUCr Executive *
 *    Secretary, 2 Abbey Square, Chester CH1 2HU, England. The        *
 *    nature, terms and duration of the licences granted will be      *
 *    determined by the IUCr Executive and Finance Committees.        *
 *                                                                    *
 * _________________________________________________________________  *
 *                                                                    *
 * In summary, the IUCr wishes to promote the use of the STAR File    *
 * concepts as a standard universal data file. It will insist on      *
 * strict compliance with the published syntax for all                *
 * applications. To assist with this compliance, the IUCr provides    *
 * public domain software for checking the logical integrity of a     *
 * CIF, and for validating the data name definitions contained        *
 * within a CIF. Detailed information on this software, and the       *
 * associated dictionaries, may be obtained from the IUCr Office at   *
 * 5 Abbey Square, Chester CH1 2HU, England.                          *
 **********************************************************************/


#define YYBISON 1  /* Identify Bison output.  */

#define    DATA    258
#define    LOOP    259
#define    ITEM    260
#define    CATEGORY    261
#define    COLUMN    262
#define    STRING    263
#define	CIFWORD	264
#define    BINARY    265
#define    UNKNOWN    266
#define    COMMENT    267
#ifdef CIFERROR
#undef CIFERROR
#endif
#define    CIFERROR    268



#ifdef __cplusplus

extern "C" {

#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "cif.h"

#ifdef __GNUC__
#ifdef USEMALLOCH
#include <malloc.h>
#endif
#endif

#include "rasmol.h"
#include "cmndline.h"
#ifdef IBMPC
#include <windows.h>
#include <malloc.h>
#endif
#ifdef APPLEMAC
#include <Types.h>
#endif
#ifndef sun386
#include <stdlib.h>
#endif

#define yyparse       cif_parse
#define yylex         cif_lex_wrapper
#define yyerror       cif_syntax_error
#define yyoverflow(msg,u,v,w,x,y)  RasMolFatalExit(msg)
     
#define YYLEX_PARAM   context
#define YYPARSE_PARAM context

int cif_lex (void __far *, void __far *);

int cif_lex_wrapper (void __far *val, void __far *context)
{
  int token;

  do

    token = cif_lex (val, ((void __far * __far *) context) [0]);

  while (token == COMMENT);

  return token;
}

int cif_syntax_error ( char __far *message)
{ InvalidateCmndLine();
  WriteString (message);
  WriteChar ('\n');
  return 0;
}


#include <stdio.h>

#ifndef __cplusplus
#ifndef __STDC__
#define const
#endif
#endif



#define    YYFINAL        34
#define    YYFLAG        -32768
#define    YYNTBASE    14

#define YYTRANSLATE(x) ((unsigned)(x) <= 268 ? yytranslate[x] : 31)

static const char __far yytranslate[] = {     0,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     1,     2,     3,     4,     5,
     6,     7,     8,     9,    10,    11,    12,    13
};

#if YYDEBUG != 0
static const short __far yyprhs[] = {     0,
     0,     2,     3,     5,     8,    10,    12,    14,    17,    20,
    23,    26,    29,    32,    35,    38,    41,    44,    47,    50,
    52,    54,    56,    58,    60,    62,    64
};

static const short __far yyrhs[] = {    17,
     0,     0,    15,     0,    14,    26,     0,    16,     0,    20,
     0,    24,     0,    17,    27,     0,    18,    28,     0,    17,
    29,     0,    19,    30,     0,    17,    25,     0,    21,    27,
     0,    23,    27,     0,    21,    29,     0,    23,    29,     0,
    22,    28,     0,    23,    30,     0,    24,    30,     0,     4,
     0,     3,     0,     6,     0,     7,     0,     5,     0,     8,
     0,     9,     0,    10,     0
};

#endif

#if YYDEBUG != 0
static const short __far yyrline[] = { 0,
    92,    97,   102,   105,   110,   113,   116,   121,   126,   129,
   136,   143,   150,   157,   168,   179,   192,   203,   210,   219,
   222,   227,   232,   237,   242,   245,   248
};
#endif


#if YYDEBUG != 0 || defined (YYERROR_VERBOSE)

static const char __far * const yytname[] = {   "$","error","$undefined.","DATA","LOOP",
"ITEM","CATEGORY","COLUMN","STRING","CIFWORD","BINARY","UNKNOWN","COMMENT","CIFERROR",
"cbf","cbfstart","datablockstart","datablock","category","column","assignment",
"loopstart","loopcategory","loopcolumn","loopassignment","loop","datablockname",
"categoryname","columnname","itemname","value", NULL
};
#endif

static const short __far yyr1[] = {     0,
    14,    15,    16,    16,    17,    17,    17,    18,    19,    19,
    20,    21,    22,    22,    23,    23,    23,    24,    24,    25,
    26,    27,    28,    29,    30,    30,    30
};

static const short __far yyr2[] = {     0,
     1,     0,     1,     2,     1,     1,     1,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     1,
     1,     1,     1,     1,     1,     1,     1
};

static const short __far yydefact[] = {     2,
     0,     3,     5,     1,     0,     0,     6,     0,     0,     0,
     7,    21,     4,    20,    24,    22,    12,     8,    10,    23,
     9,    25,    26,    27,    11,    13,    15,    17,    14,    16,
    18,    19,     0,     0
};

static const short __far yydefgoto[] = {     1,
     2,     3,     4,     5,     6,     7,     8,     9,    10,    11,
    17,    13,    18,    21,    19,    25
};

static const short __far yypact[] = {-32768,
     6,-32768,-32768,     7,    13,     8,-32768,     9,    13,    -5,
     8,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
-32768,-32768,     2,-32768
};

static const short __far yypgoto[] = {-32768,
-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
-32768,-32768,     0,    -2,    11,    12
};


#define    YYLAST        23


static const short __far yytable[] = {    15,
    16,    34,    22,    23,    24,    33,    28,    26,    12,    29,
    14,    15,    16,    15,    16,    22,    23,    24,    27,    20,
    30,    31,    32
};

static const short __far yycheck[] = {     5,
     6,     0,     8,     9,    10,     0,     9,     8,     3,    10,
     4,     5,     6,     5,     6,     8,     9,    10,     8,     7,
    10,    10,    11
};
#define YYPURE 1

/***********************************************************************
 * cif_PARSER.simple                                                   *
 * made from the _output_ of a bsion run against a grammar by          *
 * Herbert J. Bernstein, yaya@bernstein-plus-sons.com, 10 August 1998  *
 *                                                                     *
 * This file is used as a replacement for /usr/lib/bison.simple        *
 * if it is necessary to rebuild cbf.stx.tab.c                         *
 *                                                                     *
 * Under the terms of the "special exception", below, we may use       * 
 * the file from which this file was made "without restriction".       *
 * We have made only one signficant change to the original file        *
 * changing the __GNUC__ declaration of yyparse to be                  *
 *                                                                     *
 *  #ifdef YYPARSE_PARAM                                               *
 *  int yyparse (void *YYPARSE_PARAM);                                 *
 *  #else                                                              *
 *  int yyparse (void);                                                *
 *  #endif                                                             *
 *                                                                     *
 * and suppressed the "#line" declarations                             *
 *                                                                     *
 * Please treat this file as being subject to the same conditions      *
 * as the original bison.simple.  However, inclusion of this file      *
 * with other software purely for the purpose of providing a           *
 * replacement for bison.simple does not bring that other software     *
 * within the reach of the GNU General Public License.                 *
 ***********************************************************************/
 

/* 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.  */

#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 __far *alloca (unsigned int);
};
#else /* not __cplusplus */
void __far *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__
#ifdef YYPARSE_PARAM
int yyparse (void __far *YYPARSE_PARAM);
#else
int yyparse (void);
#endif
#endif

#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 __far *to;
     char __far *from;
     int count;
{
  register char __far *f = from;
  register char __far *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 __far *to, char __far *from, int count)
{
  register char __far *f = from;
  register char __far *t = to;
  register int i = count;

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

#endif
#endif



/* 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 */

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 __far yyssa[YYINITDEPTH];     /*  the state stack                     */
  YYSTYPE __far yyvsa[YYINITDEPTH];   /*  the semantic value stack            */

  short __far *yyss = yyssa;          /*  refer to the stacks thru separate pointers */
  YYSTYPE __far *yyvs = yyvsa;        /*  to allow yyoverflow to reallocate them elsewhere */

#ifdef YYLSP_NEEDED
  YYLTYPE __far yylsa[YYINITDEPTH];   /*  the location stack                  */
  YYLTYPE __far *yyls = yylsa;
  YYLTYPE __far *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 __far *yyvs1 = yyvs;
      short __far *yyss1 = yyss;
#ifdef YYLSP_NEEDED
      YYLTYPE __far *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 __far *) alloca (yystacksize * sizeof (*yyssp));
      __yy_memcpy ((char __far *)yyss, (char *)yyss1, size * sizeof (*yyssp));
      yyvs = (YYSTYPE __far *) alloca (yystacksize * sizeof (*yyvsp));
      __yy_memcpy ((char __far *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp));
#ifdef YYLSP_NEEDED
      yyls = (YYLTYPE __far *) alloca (yystacksize * sizeof (*yylsp));
      __yy_memcpy ((char __far *)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



  switch (yyn) {

case 1:
{
                                                  cif_failnez (cif_find_parent (&(yyval.node), yyvsp[0].node, CIF_ROOT))
                                                ;
    break;}
case 2:
{
                                                  yyval.node = ((void **) context) [1];
                                                ;
    break;}
case 3:
{
                                                  cif_failnez (cif_make_child (&(yyval.node), yyvsp[0].node, CIF_DATABLOCK, NULL))
                                                ;
    break;}
case 4:
{
                                                  cif_failnez (cif_make_child (&(yyval.node), yyvsp[-1].node, CIF_DATABLOCK, yyvsp[0].text))
                                                ;
    break;}
case 5:
{
                                                  yyval.node = yyvsp[0].node;
                                                ;
    break;}
case 6:
{
                                                  cif_failnez (cif_find_parent (&(yyval.node), yyvsp[0].node, CIF_DATABLOCK))
                                                ;
    break;}
case 7:
{
                                                  cif_failnez (cif_find_parent (&(yyval.node), yyvsp[0].node, CIF_DATABLOCK))
                                                ;
    break;}
case 8:
{
                                                  cif_failnez (cif_make_child (&(yyval.node), yyvsp[-1].node, CIF_CATEGORY, yyvsp[0].text))
                                                ;
    break;}
case 9:
{
                                                  cif_failnez (cif_make_child (&(yyval.node), yyvsp[-1].node, CIF_COLUMN, yyvsp[0].text))
                                                ;
    break;}
case 10:
{
                                                  cif_failnez (cif_make_new_child (&(yyval.node), yyvsp[-1].node, CIF_CATEGORY, NULL))
                                                  
                                                  cif_failnez (cif_make_child (&(yyval.node), yyval.node, CIF_COLUMN, yyvsp[0].text))
                                                ;
    break;}
case 11:
{
                                                  yyval.node = yyvsp[-1].node;

                                                  cif_failnez (cif_set_columnrow (yyval.node, 0, yyvsp[0].text))
                                                ;
    break;}
case 12:
{
                                                  cif_failnez (cif_make_node (&(yyval.node), CIF_LINK,  NULL))

                                                  cif_failnez (cif_set_link (yyval.node, yyvsp[-1].node))
                                                ;
    break;}
case 13:
{
                                                  cif_failnez (cif_make_child (&(yyval.node), yyvsp[-1].node, CIF_CATEGORY, yyvsp[0].text))

                                                  cif_failnez (cif_set_link (yyvsp[-1].node, yyval.node))

                                                  yyval.node = yyvsp[-1].node;
                                                ;
    break;}
case 14:
{
                                                  cif_failnez (cif_find_parent (&(yyval.node), yyvsp[-1].node, CIF_DATABLOCK))

                                                  cif_failnez (cif_make_child (&(yyval.node), yyval.node, CIF_CATEGORY, yyvsp[0].text))

                                                  cif_failnez (cif_set_link (yyvsp[-1].node, yyval.node))

                                                  yyval.node = yyvsp[-1].node;
                                                ;
    break;}
case 15:
{
                                                  cif_failnez (cif_make_new_child (&(yyval.node), yyvsp[-1].node, CIF_CATEGORY, NULL))
                                                  
                                                  cif_failnez (cif_make_child (&(yyval.node), yyval.node, CIF_COLUMN, yyvsp[0].text))

                                                  cif_failnez (cif_set_link (yyvsp[-1].node, yyval.node))

                                                  cif_failnez (cif_add_link (yyvsp[-1].node, yyval.node))

                                                  yyval.node = yyvsp[-1].node;
                                                ;
    break;}
case 16:
{
                                                  cif_failnez (cif_find_parent (&(yyval.node), yyvsp[-1].node, CIF_DATABLOCK))

                                                  cif_failnez (cif_make_child (&(yyval.node), yyval.node, CIF_CATEGORY, NULL))
                                                  
                                                  cif_failnez (cif_make_child (&(yyval.node), yyval.node, CIF_COLUMN, yyvsp[0].text))

                                                  cif_failnez (cif_set_link (yyvsp[-1].node, yyval.node))

                                                  cif_failnez (cif_add_link (yyvsp[-1].node, yyval.node))

                                                  yyval.node = yyvsp[-1].node;
                                                ;
    break;}
case 17:
{
                                                  cif_failnez (cif_make_child (&(yyval.node), yyvsp[-1].node, CIF_COLUMN, yyvsp[0].text))

                                                  cif_failnez (cif_set_link (yyvsp[-1].node, yyval.node))

                                                  cif_failnez (cif_add_link (yyvsp[-1].node, yyval.node))

                                                  yyval.node = yyvsp[-1].node;
                                                ;
    break;}
case 18:
{
                                                  yyval.node = yyvsp[-1].node;

                                                  cif_failnez (cif_shift_link (yyval.node))

                                                  cif_failnez (cif_add_columnrow (yyval.node, yyvsp[0].text))
                                                ;
    break;}
case 19:
{
                                                  yyval.node = yyvsp[-1].node;

                                                  cif_failnez (cif_shift_link (yyval.node))

                                                  cif_failnez (cif_add_columnrow (yyval.node, yyvsp[0].text))
                                                ;
    break;}
case 21:
{
                                                  yyval.text = yyvsp[0].text;
                                                ;
    break;}
case 22:
{
                                                  yyval.text = yyvsp[0].text;
                                                ;
    break;}
case 23:
{
                                                  yyval.text = yyvsp[0].text;
                                                ;
    break;}
case 24:
{
                                                  yyval.text = yyvsp[0].text;
                                                ;
    break;}
case 25:
{
                                                  yyval.text = yyvsp[0].text;
                                                ;
    break;}
case 26:
{
                                                  yyval.text = yyvsp[0].text;
                                                ;
    break;}
case 27:
{
                                                  yyval.text = yyvsp[0].text;
                                                ;
    break;}
}
   /* the action file gets copied in in place of this dollarsign */


  yyvsp -= yylen;
  yyssp -= yylen;
#ifdef YYLSP_NEEDED
  yylsp -= yylen;
#endif

#if YYDEBUG != 0
  if (yydebug)
    {
      short __far *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 __far *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 *) _fmalloc(size + 15);
          if (msg != 0)
            {
              RegisterAlloc( msg );
              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);
              FreeAlloc(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 __far *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;
}



#ifdef __cplusplus

}

#endif