#include "XdmfConfig.h"

#define  YY_INT_ALIGNED short int

/* A lexical scanner generated by flex */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#define YY_FLEX_SUBMINOR_VERSION 31
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif

/* First, we deal with  platform-specific or compiler-specific issues. */

/* begin standard C headers. */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>

/* end standard C headers. */

/* flex integer type definitions */

#ifndef FLEXINT_H
#define FLEXINT_H

/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */

#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
#include <inttypes.h>
typedef int8_t flex_int8_t;
typedef uint8_t flex_uint8_t;
typedef int16_t flex_int16_t;
typedef uint16_t flex_uint16_t;
typedef int32_t flex_int32_t;
typedef uint32_t flex_uint32_t;
#else
typedef signed char flex_int8_t;
typedef short int flex_int16_t;
typedef int flex_int32_t;
typedef unsigned char flex_uint8_t; 
typedef unsigned short int flex_uint16_t;
typedef unsigned int flex_uint32_t;
#endif /* ! C99 */

/* Limits of integral types. */
/*
#ifndef INT8_MIN
#define INT8_MIN               (-128)
#endif
#ifndef INT16_MIN
#define INT16_MIN              (-32767-1)
#endif
#ifndef INT32_MIN
#define INT32_MIN              (-2147483647-1)
#endif
#ifndef INT8_MAX
#define INT8_MAX               (127)
#endif
#ifndef INT16_MAX
#define INT16_MAX              (32767)
#endif
#ifndef INT32_MAX
#define INT32_MAX              (2147483647)
#endif
#ifndef UINT8_MAX
#define UINT8_MAX              (255U)
#endif
#ifndef UINT16_MAX
#define UINT16_MAX             (65535U)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX             (4294967295U)
#endif
*/

#endif /* ! FLEXINT_H */

#ifdef __cplusplus

/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST

#else  /* ! __cplusplus */

#if __STDC__

#define YY_USE_CONST

#endif  /* __STDC__ */
#endif  /* ! __cplusplus */

#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#endif

/* Returned upon end-of-file. */
#define YY_NULL 0

/* Promotes a possibly negative, possibly signed char to an unsigned
 * integer for use as an array index.  If the signed char is negative,
 * we want to instead treat it as an 8-bit unsigned char, hence the
 * double cast.
 */
#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)

/* Enter a start condition.  This macro really ought to take a parameter,
 * but we do it the disgusting crufty way forced on us by the ()-less
 * definition of BEGIN.
 */
#define BEGIN (yy_start) = 1 + 2 *

/* Translate the current start state into a value that can be later handed
 * to BEGIN to return to the state.  The YYSTATE alias is for lex
 * compatibility.
 */
#define YY_START (((yy_start) - 1) / 2)
#define YYSTATE YY_START

/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)

/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE dice_yyrestart(dice_yyin  )

#define YY_END_OF_BUFFER_CHAR 0

/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#define YY_BUF_SIZE 16384
#endif

#ifndef YY_TYPEDEF_YY_BUFFER_STATE
#define YY_TYPEDEF_YY_BUFFER_STATE
typedef struct yy_buffer_state *YY_BUFFER_STATE;
#endif

extern int dice_yyleng;

extern FILE *dice_yyin, *dice_yyout;

#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2

    #define YY_LESS_LINENO(n)
    
/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
  do \
    { \
    /* Undo effects of setting up dice_yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
    *yy_cp = (yy_hold_char); \
    YY_RESTORE_YY_MORE_OFFSET \
    (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
    YY_DO_BEFORE_ACTION; /* set up dice_yytext again */ \
    } \
  while ( 0 )

#define unput(c) yyunput( c, (yytext_ptr)  )

/* The following is because we cannot portably get our hands on size_t
 * (without autoconf's help, which isn't available because we want
 * flex-generated scanners to compile on their own).
 */

#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef unsigned int yy_size_t;
#endif

#ifndef YY_STRUCT_YY_BUFFER_STATE
#define YY_STRUCT_YY_BUFFER_STATE
struct yy_buffer_state
  {
  FILE *yy_input_file;

  char *yy_ch_buf;    /* input buffer */
  char *yy_buf_pos;    /* current position in input buffer */

  /* Size of input buffer in bytes, not including room for EOB
   * characters.
   */
  yy_size_t yy_buf_size;

  /* Number of characters read into yy_ch_buf, not including EOB
   * characters.
   */
  int yy_n_chars;

  /* Whether we "own" the buffer - i.e., we know we created it,
   * and can realloc() it to grow it, and should free() it to
   * delete it.
   */
  int yy_is_our_buffer;

  /* Whether this is an "interactive" input source; if so, and
   * if we're using stdio for input, then we want to use getc()
   * instead of fread(), to make sure we stop fetching input after
   * each newline.
   */
  int yy_is_interactive;

  /* Whether we're considered to be at the beginning of a line.
   * If so, '^' rules will be active on the next match, otherwise
   * not.
   */
  int yy_at_bol;

    int yy_bs_lineno; /**< The line count. */
    int yy_bs_column; /**< The column count. */
    
  /* Whether to try to fill the input buffer when we reach the
   * end of it.
   */
  int yy_fill_buffer;

  int yy_buffer_status;

#define YY_BUFFER_NEW 0
#define YY_BUFFER_NORMAL 1
  /* When an EOF's been seen but there's still some text to process
   * then we mark the buffer as YY_EOF_PENDING, to indicate that we
   * shouldn't try reading from the input source any more.  We might
   * still have a bunch of tokens to match, though, because of
   * possible backing-up.
   *
   * When we actually see the EOF, we change the status to "new"
   * (via dice_yyrestart()), so that the user can continue scanning by
   * just pointing dice_yyin at a new input file.
   */
#define YY_BUFFER_EOF_PENDING 2

  };
#endif /* !YY_STRUCT_YY_BUFFER_STATE */

/* Stack of input buffers. */
static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */

/* We provide macros for accessing buffer states in case in the
 * future we want to put the buffer states in a more general
 * "scanner state".
 *
 * Returns the top of the stack, or NULL.
 */
#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
                          : NULL)

/* Same as previous macro, but useful when we know that the buffer stack is not
 * NULL or when we need an lvalue. For internal use only.
 */
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]

/* yy_hold_char holds the character lost when dice_yytext is formed. */
static char yy_hold_char;
static int yy_n_chars;    /* number of characters read into yy_ch_buf */
int dice_yyleng;

/* Points to current character in buffer. */
static char *yy_c_buf_p = (char *) 0;
static int yy_init = 1;    /* whether we need to initialize */
static int yy_start = 0;  /* start state number */

/* Flag which is used to allow dice_yywrap()'s to do buffer switches
 * instead of setting up a fresh dice_yyin.  A bit of a hack ...
 */
static int yy_did_buffer_switch_on_eof;

void dice_yyrestart (FILE *input_file  );
void dice_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer  );
YY_BUFFER_STATE dice_yy_create_buffer (FILE *file,int size  );
void dice_yy_delete_buffer (YY_BUFFER_STATE b  );
void dice_yy_flush_buffer (YY_BUFFER_STATE b  );
void dice_yypush_buffer_state (YY_BUFFER_STATE new_buffer  );
void dice_yypop_buffer_state (void );

static void dice_yyensure_buffer_stack (void );
static void dice_yy_load_buffer_state (void );
static void dice_yy_init_buffer (YY_BUFFER_STATE b,FILE *file  );

#define YY_FLUSH_BUFFER dice_yy_flush_buffer(YY_CURRENT_BUFFER )

YY_BUFFER_STATE dice_yy_scan_buffer (char *base,yy_size_t size  );
YY_BUFFER_STATE dice_yy_scan_string (yyconst char *yy_str  );
YY_BUFFER_STATE dice_yy_scan_bytes (yyconst char *bytes,int len  );

void *dice_yyalloc (yy_size_t  );
void *dice_yyrealloc (void *,yy_size_t  );
void dice_yyfree (void *  );

#define yy_new_buffer dice_yy_create_buffer

#define yy_set_interactive(is_interactive) \
  { \
  if ( ! YY_CURRENT_BUFFER ){ \
        dice_yyensure_buffer_stack (); \
    YY_CURRENT_BUFFER_LVALUE =    \
            dice_yy_create_buffer(dice_yyin,YY_BUF_SIZE ); \
  } \
  YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
  }

#define yy_set_bol(at_bol) \
  { \
  if ( ! YY_CURRENT_BUFFER ){\
        dice_yyensure_buffer_stack (); \
    YY_CURRENT_BUFFER_LVALUE =    \
            dice_yy_create_buffer(dice_yyin,YY_BUF_SIZE ); \
  } \
  YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
  }

#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

/* Begin user sect3 */

typedef unsigned char YY_CHAR;

FILE *dice_yyin = (FILE *) 0, *dice_yyout = (FILE *) 0;

typedef int yy_state_type;

extern int dice_yylineno;

int dice_yylineno = 1;

extern char *dice_yytext;
#define yytext_ptr dice_yytext

static yy_state_type yy_get_previous_state (void );
static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
static int yy_get_next_buffer (void );
static void yy_fatal_error (yyconst char msg[]  );

/* Done after the current pattern has been matched and before the
 * corresponding action - sets up dice_yytext.
 */
#define YY_DO_BEFORE_ACTION \
  (yytext_ptr) = yy_bp; \
  dice_yyleng = (size_t) (yy_cp - yy_bp); \
  (yy_hold_char) = *yy_cp; \
  *yy_cp = '\0'; \
  (yy_c_buf_p) = yy_cp;

#define YY_NUM_RULES 25
#define YY_END_OF_BUFFER 26
/* This struct is not used in this scanner,
   but its presence is necessary. */
struct yy_trans_info
  {
  flex_int32_t yy_verify;
  flex_int32_t yy_nxt;
  };
static yyconst flex_int16_t yy_accept[72] =
    {   0,
        0,    0,   26,   24,   22,   23,   24,   24,   24,   18,
       13,   24,   15,   21,   21,   21,   21,   20,   21,   21,
       21,   17,    0,   18,   19,   11,   14,   12,   16,   10,
       21,   21,   21,   21,   21,   21,   21,   20,   20,   21,
       21,   21,    0,   21,   21,   21,   21,   21,   21,   20,
       21,   21,   21,    0,   19,   21,   21,    2,    3,   21,
       21,   21,    1,   21,    8,    9,    5,    6,    7,    4,
        0
    } ;

static yyconst flex_int32_t yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    4,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    5,    1,    5,    6,    1,    7,    7,    7,
        7,    7,    7,    7,    7,    7,    7,    1,    1,    8,
        9,   10,    1,    1,   11,   11,   11,   12,   13,   11,
       11,   14,   15,   16,   11,   11,   11,   17,   18,   11,
       11,   19,   11,   11,   11,   11,   20,   21,   11,   11,
        1,    1,    1,    1,   22,    1,   11,   11,   11,   23,

       24,   11,   11,   25,   26,   27,   11,   11,   11,   28,
       29,   11,   11,   30,   11,   11,   11,   11,   31,   32,
       11,   11,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1
    } ;

static yyconst flex_int32_t yy_meta[33] =
    {   0,
        1,    1,    1,    1,    1,    1,    2,    1,    1,    1,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    3,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2
    } ;

static yyconst flex_int16_t yy_base[74] =
    {   0,
        0,    0,   94,   95,   95,   95,   84,   27,   85,   29,
       29,   82,   30,    0,   24,   24,   29,   68,   61,   59,
       62,   95,   79,   38,   42,   95,   95,   95,   95,   95,
        0,   73,   61,   68,   56,   68,   56,   57,   56,   54,
       50,   51,   41,   61,   49,   55,   43,   51,   39,   43,
       40,   35,   32,   54,   53,   38,   26,    0,    0,   44,
       32,   19,    0,   26,    0,    0,    0,    0,    0,    0,
       95,   45,   65
    } ;

static yyconst flex_int16_t yy_def[74] =
    {   0,
       71,    1,   71,   71,   71,   71,   71,   71,   71,   71,
       71,   71,   71,   72,   72,   72,   72,   73,   72,   72,
       72,   71,   71,   71,   71,   71,   71,   71,   71,   71,
       72,   72,   72,   72,   72,   72,   72,   73,   73,   72,
       72,   72,   71,   72,   72,   72,   72,   72,   72,   73,
       72,   72,   72,   71,   71,   72,   72,   72,   72,   72,
       72,   72,   72,   72,   72,   72,   72,   72,   72,   72,
        0,   71,   71
    } ;

static yyconst flex_int16_t yy_nxt[128] =
    {   0,
        4,    5,    6,    7,    8,    9,   10,   11,   12,   13,
       14,   14,   14,   14,   15,   16,   14,   14,   14,   17,
       14,   18,   14,   14,   14,   19,   20,   14,   14,   14,
       21,   14,   23,   24,   23,   24,   26,   27,   29,   30,
       32,   34,   36,   23,   24,   54,   31,   55,   25,   70,
       69,   33,   35,   37,   43,   68,   67,   66,   65,   55,
       55,   64,   63,   62,   50,   43,   38,   38,   61,   60,
       59,   58,   57,   56,   53,   52,   51,   39,   50,   49,
       48,   47,   46,   45,   44,   25,   42,   41,   40,   39,
       28,   25,   22,   71,    3,   71,   71,   71,   71,   71,

       71,   71,   71,   71,   71,   71,   71,   71,   71,   71,
       71,   71,   71,   71,   71,   71,   71,   71,   71,   71,
       71,   71,   71,   71,   71,   71,   71
    } ;

static yyconst flex_int16_t yy_chk[128] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    8,    8,   10,   10,   11,   11,   13,   13,
       15,   16,   17,   24,   24,   43,   72,   43,   25,   64,
       62,   15,   16,   17,   25,   61,   60,   57,   56,   55,
       54,   53,   52,   51,   50,   25,   73,   73,   49,   48,
       47,   46,   45,   44,   42,   41,   40,   39,   38,   37,
       36,   35,   34,   33,   32,   23,   21,   20,   19,   18,
       12,    9,    7,    3,   71,   71,   71,   71,   71,   71,

       71,   71,   71,   71,   71,   71,   71,   71,   71,   71,
       71,   71,   71,   71,   71,   71,   71,   71,   71,   71,
       71,   71,   71,   71,   71,   71,   71
    } ;

static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;

extern int dice_yy_flex_debug;
int dice_yy_flex_debug = 0;

/* The intent behind this definition is that it'll catch
 * any uses of REJECT which flex missed.
 */
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *dice_yytext;


#undef input
#undef output
#undef unput
#include <XdmfObject.h>
#include <XdmfExpr.h>
#include <XdmfArray.h>
/* Geneated by bison */
#include "XdmfExprYacc.tab.h"
// #include <ice.h>
#include <math.h>
#define YY_NEVER_INTERACTIVE 1

#if defined( _WIN32 ) && !defined( __CYGWIN__ )
/* Handle Windows properly */
#  include <io.h>
#  define YY_NO_UNISTD_H
#  define isatty _isatty
#endif

#ifndef yylval
#define yylval dice_yylval
extern YYSTYPE dice_yylval;
#endif
#ifndef dice_yywrap
#define dice_yywrap dice_yywrap
#endif
extern "C" int dice_yywrap(void);
/*
#define DiceExprDebug 1
*/

static int
GetPointerFromString( char *_c, void **_ptr ){
XDMF_BIG_INT  _p;

_p = 0;
if ( strcmp( _c, "NULL" ) == 0 ){
  *_ptr = NULL;
  return( 0 );
  }

  /* Pointer values must start with leading underscore */
  if (*_c == '_') {
  *_ptr = TagNameToArray( _c );
  if( *_ptr == NULL ) {
    return( 1 );
  }
  return( 0 );
/* Old
      _c++;
      while (*_c) {
    if ((*_c >= '0') && (*_c <= '9'))
      _p = (_p << 4) + (*_c - '0');
    else if ((*_c >= 'a') && (*_c <= 'f'))
      _p = (_p << 4) + ((*_c - 'a') + 10);
    else
      break;
    _c++;
      }
*/

   } else {
  *_ptr = NULL;
  return( 1 );
  }

*_ptr = *((void **) &_p);
return( 0 );
}



#define INITIAL 0

#ifndef YY_NO_UNISTD_H
/* Special case for "unistd.h", since it is non-ANSI. We include it way
 * down here because we want the user's section 1 to have been scanned first.
 * The user has a chance to override it with an option.
 */
#include <unistd.h>
#endif

#ifndef YY_EXTRA_TYPE
#define YY_EXTRA_TYPE void *
#endif

/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int dice_yywrap (void );
#else
extern int dice_yywrap (void );
#endif
#endif

    static void yyunput (int c,char *buf_ptr  );
    
#ifndef yytext_ptr
static void yy_flex_strncpy (char *,yyconst char *,int );
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * );
#endif

#ifndef YY_NO_INPUT

#ifdef __cplusplus
static int yyinput (void );
#else
static int input (void );
#endif

#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite().
 */
#define ECHO (void) fwrite( dice_yytext, dice_yyleng, 1, dice_yyout )
#endif

/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
  if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
    { \
    int c = '*'; \
    size_t n; \
    for ( n = 0; n < max_size && \
           (c = getc( dice_yyin )) != EOF && c != '\n'; ++n ) \
      buf[n] = (char) c; \
    if ( c == '\n' ) \
      buf[n++] = (char) c; \
    if ( c == EOF && ferror( dice_yyin ) ) \
      YY_FATAL_ERROR( "input in flex scanner failed" ); \
    result = n; \
    } \
  else \
    { \
    errno=0; \
    while ( (result = fread(buf, 1, max_size, dice_yyin))==0 && ferror(dice_yyin)) \
      { \
      if( errno != EINTR) \
        { \
        YY_FATAL_ERROR( "input in flex scanner failed" ); \
        break; \
        } \
      errno=0; \
      clearerr(dice_yyin); \
      } \
    }\
\

#endif

/* No semi-colon after return; correct usage is to write "yyterminate();" -
 * we don't want an extra ';' after the "return" because that will cause
 * some compilers to complain about unreachable statements.
 */
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif

/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif

/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
#endif

/* end tables serialization structures and prototypes */

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL_IS_OURS 1

extern int dice_yylex (void);

#define YY_DECL int dice_yylex (void)
#endif /* !YY_DECL */

/* Code executed at the beginning of each rule, after dice_yytext and dice_yyleng
 * have been set up.
 */
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif

/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif

#define YY_RULE_SETUP \
  YY_USER_ACTION

/** The main scanner function which does all the work.
 */
YY_DECL
{
  register yy_state_type yy_current_state;
  register char *yy_cp, *yy_bp;
  register int yy_act;
    




  if ( (yy_init) )
    {
    (yy_init) = 0;

#ifdef YY_USER_INIT
    YY_USER_INIT;
#endif

    if ( ! (yy_start) )
      (yy_start) = 1;  /* first start state */

    if ( ! dice_yyin )
      dice_yyin = stdin;

    if ( ! dice_yyout )
      dice_yyout = stdout;

    if ( ! YY_CURRENT_BUFFER ) {
      dice_yyensure_buffer_stack ();
      YY_CURRENT_BUFFER_LVALUE =
        dice_yy_create_buffer(dice_yyin,YY_BUF_SIZE );
    }

    dice_yy_load_buffer_state( );
    }

  while ( 1 )    /* loops until end-of-file is reached */
    {
    yy_cp = (yy_c_buf_p);

    /* Support of dice_yytext. */
    *yy_cp = (yy_hold_char);

    /* yy_bp points to the position in yy_ch_buf of the start of
     * the current run.
     */
    yy_bp = yy_cp;

    yy_current_state = (yy_start);
yy_match:
    do
      {
      register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
      if ( yy_accept[yy_current_state] )
        {
        (yy_last_accepting_state) = yy_current_state;
        (yy_last_accepting_cpos) = yy_cp;
        }
      while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
        {
        yy_current_state = (int) yy_def[yy_current_state];
        if ( yy_current_state >= 72 )
          yy_c = yy_meta[(unsigned int) yy_c];
        }
      yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
      ++yy_cp;
      }
    while ( yy_base[yy_current_state] != 95 );

yy_find_action:
    yy_act = yy_accept[yy_current_state];
    if ( yy_act == 0 )
      { /* have to back up */
      yy_cp = (yy_last_accepting_cpos);
      yy_current_state = (yy_last_accepting_state);
      yy_act = yy_accept[yy_current_state];
      }

    YY_DO_BEFORE_ACTION;

do_action:  /* This label is used only to access EOF actions. */

    switch ( yy_act )
  { /* beginning of action switch */
      case 0: /* must back up */
      /* undo the effects of YY_DO_BEFORE_ACTION */
      *yy_cp = (yy_hold_char);
      yy_cp = (yy_last_accepting_cpos);
      yy_current_state = (yy_last_accepting_state);
      goto yy_find_action;

case 1:
YY_RULE_SETUP

{ return JOIN; }
  YY_BREAK
case 2:
YY_RULE_SETUP

{ return JOIN; }
  YY_BREAK
case 3:
YY_RULE_SETUP

{ return JOIN; }
  YY_BREAK
case 4:
YY_RULE_SETUP

{ return WHERE; }
  YY_BREAK
case 5:
YY_RULE_SETUP

{ return WHERE; }
  YY_BREAK
case 6:
YY_RULE_SETUP

{ return WHERE; }
  YY_BREAK
case 7:
YY_RULE_SETUP

{ return INDEX; }
  YY_BREAK
case 8:
YY_RULE_SETUP

{ return INDEX; }
  YY_BREAK
case 9:
YY_RULE_SETUP

{ return INDEX; }
  YY_BREAK
case 10:
YY_RULE_SETUP

{ return GTGT; }
  YY_BREAK
case 11:
YY_RULE_SETUP

{ return LTLT; }
  YY_BREAK
case 12:
YY_RULE_SETUP

{ return EQEQ; }
  YY_BREAK
case 13:
YY_RULE_SETUP

{ return LT; }
  YY_BREAK
case 14:
YY_RULE_SETUP

{ return LE; }
  YY_BREAK
case 15:
YY_RULE_SETUP

{ return GT; }
  YY_BREAK
case 16:
YY_RULE_SETUP

{ return GE; }
  YY_BREAK
case 17:
YY_RULE_SETUP

{ return NE; }
  YY_BREAK
case 18:
YY_RULE_SETUP

{
#ifdef DiceExprDebug
  printf(" Lex got a tokINTEGER\n");
#endif
  yylval.IntegerValue = atoi(dice_yytext);
  return tokINTEGER;
  }
  YY_BREAK
case 19:
YY_RULE_SETUP

{
#ifdef DiceExprDebug
  printf(" Lex got a FLOAT\n");
#endif
  yylval.DoubleValue = atof(dice_yytext);
  return lFLOAT;
  }
  YY_BREAK
case 20:
YY_RULE_SETUP

{
#ifdef DiceExprDebug
  printf(" Lex got an tokARRAY pointer\n");
#endif
  if( GetPointerFromString( dice_yytext, &yylval.ArrayPointer ) ){
    printf("Bad Pointer Conversion\n");
    yylval.ArrayPointer = NULL;
  }
  return tokARRAY;
  }
  YY_BREAK
case 21:
YY_RULE_SETUP

{
  /* Symbol */
  XdmfExprSymbol  *sp;

  sp = XdmfExprSymbolLookup( dice_yytext );
  yylval.Symbol = sp;
  return( NAME );
  }
  YY_BREAK
case 22:
YY_RULE_SETUP

;
  YY_BREAK
case 23:
/* rule 23 can match eol */
YY_RULE_SETUP

return 0;
  YY_BREAK
case 24:
YY_RULE_SETUP

return dice_yytext[0];
  YY_BREAK
case 25:
YY_RULE_SETUP

ECHO;
  YY_BREAK

case YY_STATE_EOF(INITIAL):
  yyterminate();

  case YY_END_OF_BUFFER:
    {
    /* Amount of text matched not including the EOB char. */
    int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;

    /* Undo the effects of YY_DO_BEFORE_ACTION. */
    *yy_cp = (yy_hold_char);
    YY_RESTORE_YY_MORE_OFFSET

    if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
      {
      /* We're scanning a new file or input source.  It's
       * possible that this happened because the user
       * just pointed dice_yyin at a new source and called
       * dice_yylex().  If so, then we have to assure
       * consistency between YY_CURRENT_BUFFER and our
       * globals.  Here is the right place to do so, because
       * this is the first action (other than possibly a
       * back-up) that will match for the new input source.
       */
      (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
      YY_CURRENT_BUFFER_LVALUE->yy_input_file = dice_yyin;
      YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
      }

    /* Note that here we test for yy_c_buf_p "<=" to the position
     * of the first EOB in the buffer, since yy_c_buf_p will
     * already have been incremented past the NUL character
     * (since all states make transitions on EOB to the
     * end-of-buffer state).  Contrast this with the test
     * in input().
     */
    if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
      { /* This was really a NUL. */
      yy_state_type yy_next_state;

      (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;

      yy_current_state = yy_get_previous_state(  );

      /* Okay, we're now positioned to make the NUL
       * transition.  We couldn't have
       * yy_get_previous_state() go ahead and do it
       * for us because it doesn't know how to deal
       * with the possibility of jamming (and we don't
       * want to build jamming into it because then it
       * will run more slowly).
       */

      yy_next_state = yy_try_NUL_trans( yy_current_state );

      yy_bp = (yytext_ptr) + YY_MORE_ADJ;

      if ( yy_next_state )
        {
        /* Consume the NUL. */
        yy_cp = ++(yy_c_buf_p);
        yy_current_state = yy_next_state;
        goto yy_match;
        }

      else
        {
        yy_cp = (yy_c_buf_p);
        goto yy_find_action;
        }
      }

    else switch ( yy_get_next_buffer(  ) )
      {
      case EOB_ACT_END_OF_FILE:
        {
        (yy_did_buffer_switch_on_eof) = 0;

        if ( dice_yywrap( ) )
          {
          /* Note: because we've taken care in
           * yy_get_next_buffer() to have set up
           * dice_yytext, we can now set up
           * yy_c_buf_p so that if some total
           * hoser (like flex itself) wants to
           * call the scanner after we return the
           * YY_NULL, it'll still work - another
           * YY_NULL will get returned.
           */
          (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;

          yy_act = YY_STATE_EOF(YY_START);
          goto do_action;
          }

        else
          {
          if ( ! (yy_did_buffer_switch_on_eof) )
            YY_NEW_FILE;
          }
        break;
        }

      case EOB_ACT_CONTINUE_SCAN:
        (yy_c_buf_p) =
          (yytext_ptr) + yy_amount_of_matched_text;

        yy_current_state = yy_get_previous_state(  );

        yy_cp = (yy_c_buf_p);
        yy_bp = (yytext_ptr) + YY_MORE_ADJ;
        goto yy_match;

      case EOB_ACT_LAST_MATCH:
        (yy_c_buf_p) =
        &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];

        yy_current_state = yy_get_previous_state(  );

        yy_cp = (yy_c_buf_p);
        yy_bp = (yytext_ptr) + YY_MORE_ADJ;
        goto yy_find_action;
      }
    break;
    }

  default:
    YY_FATAL_ERROR(
      "fatal flex scanner internal error--no action found" );
  } /* end of action switch */
    } /* end of scanning one token */
} /* end of dice_yylex */

/* yy_get_next_buffer - try to read in a new buffer
 *
 * Returns a code representing an action:
 *  EOB_ACT_LAST_MATCH -
 *  EOB_ACT_CONTINUE_SCAN - continue scanning from current position
 *  EOB_ACT_END_OF_FILE - end of file
 */
static int yy_get_next_buffer (void)
{
      register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
  register char *source = (yytext_ptr);
  register int number_to_move, i;
  int ret_val;

  if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
    YY_FATAL_ERROR(
    "fatal flex scanner internal error--end of buffer missed" );

  if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
    { /* Don't try to fill the buffer, so this is an EOF. */
    if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
      {
      /* We matched a single character, the EOB, so
       * treat this as a final EOF.
       */
      return EOB_ACT_END_OF_FILE;
      }

    else
      {
      /* We matched some text prior to the EOB, first
       * process it.
       */
      return EOB_ACT_LAST_MATCH;
      }
    }

  /* Try to read more data. */

  /* First move last chars to start of buffer. */
  number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;

  for ( i = 0; i < number_to_move; ++i )
    *(dest++) = *(source++);

  if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
    /* don't do the read, it's not guaranteed to return an EOF,
     * just force an EOF
     */
    YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;

  else
    {
      size_t num_to_read =
      YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;

    while ( num_to_read <= 0 )
      { /* Not enough room in the buffer - grow it. */

      /* just a shorter name for the current buffer */
      YY_BUFFER_STATE b = YY_CURRENT_BUFFER;

      int yy_c_buf_p_offset =
        (int) ((yy_c_buf_p) - b->yy_ch_buf);

      if ( b->yy_is_our_buffer )
        {
        int new_size = b->yy_buf_size * 2;

        if ( new_size <= 0 )
          b->yy_buf_size += b->yy_buf_size / 8;
        else
          b->yy_buf_size *= 2;

        b->yy_ch_buf = (char *)
          /* Include room in for 2 EOB chars. */
          dice_yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
        }
      else
        /* Can't grow it, we don't own it. */
        b->yy_ch_buf = 0;

      if ( ! b->yy_ch_buf )
        YY_FATAL_ERROR(
        "fatal error - scanner input buffer overflow" );

      (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];

      num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
            number_to_move - 1;

      }

    if ( num_to_read > YY_READ_BUF_SIZE )
      num_to_read = YY_READ_BUF_SIZE;

    /* Read in more data. */
    YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
      (yy_n_chars), num_to_read );

    YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
    }

  if ( (yy_n_chars) == 0 )
    {
    if ( number_to_move == YY_MORE_ADJ )
      {
      ret_val = EOB_ACT_END_OF_FILE;
      dice_yyrestart(dice_yyin  );
      }

    else
      {
      ret_val = EOB_ACT_LAST_MATCH;
      YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
        YY_BUFFER_EOF_PENDING;
      }
    }

  else
    ret_val = EOB_ACT_CONTINUE_SCAN;

  (yy_n_chars) += number_to_move;
  YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
  YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;

  (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];

  return ret_val;
}

/* yy_get_previous_state - get the state just before the EOB char was reached */

    static yy_state_type yy_get_previous_state (void)
{
  register yy_state_type yy_current_state;
  register char *yy_cp;
    
  yy_current_state = (yy_start);

  for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
    {
    register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
    if ( yy_accept[yy_current_state] )
      {
      (yy_last_accepting_state) = yy_current_state;
      (yy_last_accepting_cpos) = yy_cp;
      }
    while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
      {
      yy_current_state = (int) yy_def[yy_current_state];
      if ( yy_current_state >= 72 )
        yy_c = yy_meta[(unsigned int) yy_c];
      }
    yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
    }

  return yy_current_state;
}

/* yy_try_NUL_trans - try to make a transition on the NUL character
 *
 * synopsis
 *  next_state = yy_try_NUL_trans( current_state );
 */
    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
{
  register int yy_is_jam;
      register char *yy_cp = (yy_c_buf_p);

  register YY_CHAR yy_c = 1;
  if ( yy_accept[yy_current_state] )
    {
    (yy_last_accepting_state) = yy_current_state;
    (yy_last_accepting_cpos) = yy_cp;
    }
  while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
    {
    yy_current_state = (int) yy_def[yy_current_state];
    if ( yy_current_state >= 72 )
      yy_c = yy_meta[(unsigned int) yy_c];
    }
  yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
  yy_is_jam = (yy_current_state == 71);

  return yy_is_jam ? 0 : yy_current_state;
}

    static void yyunput (int c, register char * yy_bp )
{
  register char *yy_cp;
    
    yy_cp = (yy_c_buf_p);

  /* undo effects of setting up dice_yytext */
  *yy_cp = (yy_hold_char);

  if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
    { /* need to shift things up to make room */
    /* +2 for EOB chars. */
    register int number_to_move = (yy_n_chars) + 2;
    register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
          YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
    register char *source =
        &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];

    while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
      *--dest = *--source;

    yy_cp += (int) (dest - source);
    yy_bp += (int) (dest - source);
    YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
      (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;

    if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
      YY_FATAL_ERROR( "flex scanner push-back overflow" );
    }

  *--yy_cp = (char) c;

  (yytext_ptr) = yy_bp;
  (yy_hold_char) = *yy_cp;
  (yy_c_buf_p) = yy_cp;
}

#ifndef YY_NO_INPUT
#ifdef __cplusplus
    static int yyinput (void)
#else
    static int input  (void)
#endif

{
  int c;
    
  *(yy_c_buf_p) = (yy_hold_char);

  if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
    {
    /* yy_c_buf_p now points to the character we want to return.
     * If this occurs *before* the EOB characters, then it's a
     * valid NUL; if not, then we've hit the end of the buffer.
     */
    if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
      /* This was really a NUL. */
      *(yy_c_buf_p) = '\0';

    else
      { /* need more input */
      int offset = (yy_c_buf_p) - (yytext_ptr);
      ++(yy_c_buf_p);

      switch ( yy_get_next_buffer(  ) )
        {
        case EOB_ACT_LAST_MATCH:
          /* This happens because yy_g_n_b()
           * sees that we've accumulated a
           * token and flags that we need to
           * try matching the token before
           * proceeding.  But for input(),
           * there's no matching to consider.
           * So convert the EOB_ACT_LAST_MATCH
           * to EOB_ACT_END_OF_FILE.
           */

          /* Reset buffer status. */
          dice_yyrestart(dice_yyin );

          /*FALLTHROUGH*/

        case EOB_ACT_END_OF_FILE:
          {
          if ( dice_yywrap( ) )
            return EOF;

          if ( ! (yy_did_buffer_switch_on_eof) )
            YY_NEW_FILE;
#ifdef __cplusplus
          return yyinput();
#else
          return input();
#endif
          }

        case EOB_ACT_CONTINUE_SCAN:
          (yy_c_buf_p) = (yytext_ptr) + offset;
          break;
        }
      }
    }

  c = *(unsigned char *) (yy_c_buf_p);  /* cast for 8-bit char's */
  *(yy_c_buf_p) = '\0';  /* preserve dice_yytext */
  (yy_hold_char) = *++(yy_c_buf_p);

  return c;
}
#endif  /* ifndef YY_NO_INPUT */

/** Immediately switch to a different input stream.
 * @param input_file A readable stream.
 * 
 * @note This function does not reset the start condition to @c INITIAL .
 */
    void dice_yyrestart  (FILE * input_file )
{
    
  if ( ! YY_CURRENT_BUFFER ){
        dice_yyensure_buffer_stack ();
    YY_CURRENT_BUFFER_LVALUE =
            dice_yy_create_buffer(dice_yyin,YY_BUF_SIZE );
  }

  dice_yy_init_buffer(YY_CURRENT_BUFFER,input_file );
  dice_yy_load_buffer_state( );
}

/** Switch to a different input buffer.
 * @param new_buffer The new input buffer.
 * 
 */
    void dice_yy_switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
{
    
  /* TODO. We should be able to replace this entire function body
   * with
   *    dice_yypop_buffer_state();
   *    dice_yypush_buffer_state(new_buffer);
     */
  dice_yyensure_buffer_stack ();
  if ( YY_CURRENT_BUFFER == new_buffer )
    return;

  if ( YY_CURRENT_BUFFER )
    {
    /* Flush out information for old buffer. */
    *(yy_c_buf_p) = (yy_hold_char);
    YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
    YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
    }

  YY_CURRENT_BUFFER_LVALUE = new_buffer;
  dice_yy_load_buffer_state( );

  /* We don't actually know whether we did this switch during
   * EOF (dice_yywrap()) processing, but the only time this flag
   * is looked at is after dice_yywrap() is called, so it's safe
   * to go ahead and always set it.
   */
  (yy_did_buffer_switch_on_eof) = 1;
}

static void dice_yy_load_buffer_state  (void)
{
      (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
  (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
  dice_yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
  (yy_hold_char) = *(yy_c_buf_p);
}

/** Allocate and initialize an input buffer state.
 * @param file A readable stream.
 * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
 * 
 * @return the allocated buffer state.
 */
    YY_BUFFER_STATE dice_yy_create_buffer  (FILE * file, int  size )
{
  YY_BUFFER_STATE b;
    
  b = (YY_BUFFER_STATE) dice_yyalloc(sizeof( struct yy_buffer_state )  );
  if ( ! b )
    YY_FATAL_ERROR( "out of dynamic memory in dice_yy_create_buffer()" );

  b->yy_buf_size = size;

  /* yy_ch_buf has to be 2 characters longer than the size given because
   * we need to put in 2 end-of-buffer characters.
   */
  b->yy_ch_buf = (char *) dice_yyalloc(b->yy_buf_size + 2  );
  if ( ! b->yy_ch_buf )
    YY_FATAL_ERROR( "out of dynamic memory in dice_yy_create_buffer()" );

  b->yy_is_our_buffer = 1;

  dice_yy_init_buffer(b,file );

  return b;
}

/** Destroy the buffer.
 * @param b a buffer created with dice_yy_create_buffer()
 * 
 */
    void dice_yy_delete_buffer (YY_BUFFER_STATE  b )
{
    
  if ( ! b )
    return;

  if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
    YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;

  if ( b->yy_is_our_buffer )
    dice_yyfree((void *) b->yy_ch_buf  );

  dice_yyfree((void *) b  );
}

#ifndef __cplusplus
extern int isatty (int );
#endif /* __cplusplus */
    
/* Initializes or reinitializes a buffer.
 * This function is sometimes called more than once on the same buffer,
 * such as during a dice_yyrestart() or at EOF.
 */
    static void dice_yy_init_buffer  (YY_BUFFER_STATE  b, FILE * file )

{
  int oerrno = errno;
    
  dice_yy_flush_buffer(b );

  b->yy_input_file = file;
  b->yy_fill_buffer = 1;

    /* If b is the current buffer, then dice_yy_init_buffer was _probably_
     * called from dice_yyrestart() or through yy_get_next_buffer.
     * In that case, we don't want to reset the lineno or column.
     */
    if (b != YY_CURRENT_BUFFER){
        b->yy_bs_lineno = 1;
        b->yy_bs_column = 0;
    }

        b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
    
  errno = oerrno;
}

/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
 * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
 * 
 */
    void dice_yy_flush_buffer (YY_BUFFER_STATE  b )
{
      if ( ! b )
    return;

  b->yy_n_chars = 0;

  /* We always need two end-of-buffer characters.  The first causes
   * a transition to the end-of-buffer state.  The second causes
   * a jam in that state.
   */
  b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
  b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;

  b->yy_buf_pos = &b->yy_ch_buf[0];

  b->yy_at_bol = 1;
  b->yy_buffer_status = YY_BUFFER_NEW;

  if ( b == YY_CURRENT_BUFFER )
    dice_yy_load_buffer_state( );
}

/** Pushes the new state onto the stack. The new state becomes
 *  the current state. This function will allocate the stack
 *  if necessary.
 *  @param new_buffer The new state.
 *  
 */
void dice_yypush_buffer_state (YY_BUFFER_STATE new_buffer )
{
      if (new_buffer == NULL)
    return;

  dice_yyensure_buffer_stack();

  /* This block is copied from dice_yy_switch_to_buffer. */
  if ( YY_CURRENT_BUFFER )
    {
    /* Flush out information for old buffer. */
    *(yy_c_buf_p) = (yy_hold_char);
    YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
    YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
    }

  /* Only push if top exists. Otherwise, replace top. */
  if (YY_CURRENT_BUFFER)
    (yy_buffer_stack_top)++;
  YY_CURRENT_BUFFER_LVALUE = new_buffer;

  /* copied from dice_yy_switch_to_buffer. */
  dice_yy_load_buffer_state( );
  (yy_did_buffer_switch_on_eof) = 1;
}

/** Removes and deletes the top of the stack, if present.
 *  The next element becomes the new top.
 *  
 */
void dice_yypop_buffer_state (void)
{
      if (!YY_CURRENT_BUFFER)
    return;

  dice_yy_delete_buffer(YY_CURRENT_BUFFER );
  YY_CURRENT_BUFFER_LVALUE = NULL;
  if ((yy_buffer_stack_top) > 0)
    --(yy_buffer_stack_top);

  if (YY_CURRENT_BUFFER) {
    dice_yy_load_buffer_state( );
    (yy_did_buffer_switch_on_eof) = 1;
  }
}

/* Allocates the stack if it does not exist.
 *  Guarantees space for at least one push.
 */
static void dice_yyensure_buffer_stack (void)
{
  int num_to_alloc;
    
  if (!(yy_buffer_stack)) {

    /* First allocation is just for 2 elements, since we don't know if this
     * scanner will even need a stack. We use 2 instead of 1 to avoid an
     * immediate realloc on the next call.
         */
    num_to_alloc = 1;
    (yy_buffer_stack) = (struct yy_buffer_state**)dice_yyalloc
                (num_to_alloc * sizeof(struct yy_buffer_state*)
                );
    
    memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
        
    (yy_buffer_stack_max) = num_to_alloc;
    (yy_buffer_stack_top) = 0;
    return;
  }

  if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){

    /* Increase the buffer to prepare for a possible push. */
    int grow_size = 8 /* arbitrary grow size */;

    num_to_alloc = (yy_buffer_stack_max) + grow_size;
    (yy_buffer_stack) = (struct yy_buffer_state**)dice_yyrealloc
                ((yy_buffer_stack),
                num_to_alloc * sizeof(struct yy_buffer_state*)
                );

    /* zero only the new slots.*/
    memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
    (yy_buffer_stack_max) = num_to_alloc;
  }
}

/** Setup the input buffer state to scan directly from a user-specified character buffer.
 * @param base the character buffer
 * @param size the size in bytes of the character buffer
 * 
 * @return the newly allocated buffer state object. 
 */
YY_BUFFER_STATE dice_yy_scan_buffer  (char * base, yy_size_t  size )
{
  YY_BUFFER_STATE b;
    
  if ( size < 2 ||
       base[size-2] != YY_END_OF_BUFFER_CHAR ||
       base[size-1] != YY_END_OF_BUFFER_CHAR )
    /* They forgot to leave room for the EOB's. */
    return 0;

  b = (YY_BUFFER_STATE) dice_yyalloc(sizeof( struct yy_buffer_state )  );
  if ( ! b )
    YY_FATAL_ERROR( "out of dynamic memory in dice_yy_scan_buffer()" );

  b->yy_buf_size = size - 2;  /* "- 2" to take care of EOB's */
  b->yy_buf_pos = b->yy_ch_buf = base;
  b->yy_is_our_buffer = 0;
  b->yy_input_file = 0;
  b->yy_n_chars = b->yy_buf_size;
  b->yy_is_interactive = 0;
  b->yy_at_bol = 1;
  b->yy_fill_buffer = 0;
  b->yy_buffer_status = YY_BUFFER_NEW;

  dice_yy_switch_to_buffer(b  );

  return b;
}

/** Setup the input buffer state to scan a string. The next call to dice_yylex() will
 * scan from a @e copy of @a str.
 * @param str a NUL-terminated string to scan
 * 
 * @return the newly allocated buffer state object.
 * @note If you want to scan bytes that may contain NUL values, then use
 *       dice_yy_scan_bytes() instead.
 */
YY_BUFFER_STATE dice_yy_scan_string (yyconst char * yy_str )
{
    
  return dice_yy_scan_bytes(yy_str,strlen(yy_str) );
}

/** Setup the input buffer state to scan the given bytes. The next call to dice_yylex() will
 * scan from a @e copy of @a bytes.
 * @param bytes the byte buffer to scan
 * @param len the number of bytes in the buffer pointed to by @a bytes.
 * 
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE dice_yy_scan_bytes  (yyconst char * bytes, int  len )
{
  YY_BUFFER_STATE b;
  char *buf;
  yy_size_t n;
  int i;
    
  /* Get memory for full buffer, including space for trailing EOB's. */
  n = len + 2;
  buf = (char *) dice_yyalloc(n  );
  if ( ! buf )
    YY_FATAL_ERROR( "out of dynamic memory in dice_yy_scan_bytes()" );

  for ( i = 0; i < len; ++i )
    buf[i] = bytes[i];

  buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;

  b = dice_yy_scan_buffer(buf,n );
  if ( ! b )
    YY_FATAL_ERROR( "bad buffer in dice_yy_scan_bytes()" );

  /* It's okay to grow etc. this buffer, and we should throw it
   * away when we're done.
   */
  b->yy_is_our_buffer = 1;

  return b;
}

#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif

static void yy_fatal_error (yyconst char* msg )
{
      (void) fprintf( stderr, "%s\n", msg );
  exit( YY_EXIT_FAILURE );
}

/* Redefine yyless() so it works in section 3 code. */

#undef yyless
#define yyless(n) \
  do \
    { \
    /* Undo effects of setting up dice_yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
    dice_yytext[dice_yyleng] = (yy_hold_char); \
    (yy_c_buf_p) = dice_yytext + yyless_macro_arg; \
    (yy_hold_char) = *(yy_c_buf_p); \
    *(yy_c_buf_p) = '\0'; \
    dice_yyleng = yyless_macro_arg; \
    } \
  while ( 0 )

/* Accessor  methods (get/set functions) to struct members. */

/** Get the current line number.
 * 
 */
int dice_yyget_lineno  (void)
{
        
    return dice_yylineno;
}

/** Get the input stream.
 * 
 */
FILE *dice_yyget_in  (void)
{
        return dice_yyin;
}

/** Get the output stream.
 * 
 */
FILE *dice_yyget_out  (void)
{
        return dice_yyout;
}

/** Get the length of the current token.
 * 
 */
int dice_yyget_leng  (void)
{
        return dice_yyleng;
}

/** Get the current token.
 * 
 */

char *dice_yyget_text  (void)
{
        return dice_yytext;
}

/** Set the current line number.
 * @param line_number
 * 
 */
void dice_yyset_lineno (int  line_number )
{
    
    dice_yylineno = line_number;
}

/** Set the input stream. This does not discard the current
 * input buffer.
 * @param in_str A readable stream.
 * 
 * @see dice_yy_switch_to_buffer
 */
void dice_yyset_in (FILE *  in_str )
{
        dice_yyin = in_str ;
}

void dice_yyset_out (FILE *  out_str )
{
        dice_yyout = out_str ;
}

int dice_yyget_debug  (void)
{
        return dice_yy_flex_debug;
}

void dice_yyset_debug (int  bdebug )
{
        dice_yy_flex_debug = bdebug ;
}

/* dice_yylex_destroy is for both reentrant and non-reentrant scanners. */
int dice_yylex_destroy  (void)
{
    
    /* Pop the buffer stack, destroying each element. */
  while(YY_CURRENT_BUFFER){
    dice_yy_delete_buffer(YY_CURRENT_BUFFER  );
    YY_CURRENT_BUFFER_LVALUE = NULL;
    dice_yypop_buffer_state();
  }

  /* Destroy the stack itself. */
  dice_yyfree((yy_buffer_stack) );
  (yy_buffer_stack) = NULL;

    return 0;
}

/*
 * Internal utility routines.
 */

#ifndef yytext_ptr
static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
{
  register int i;
      for ( i = 0; i < n; ++i )
    s1[i] = s2[i];
}
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * s )
{
  register int n;
      for ( n = 0; s[n]; ++n )
    ;

  return n;
}
#endif

void *dice_yyalloc (yy_size_t  size )
{
  return (void *) malloc( size );
}

void *dice_yyrealloc  (void * ptr, yy_size_t  size )
{
  /* The cast to (char *) in the following accommodates both
   * implementations that use char* generic pointers, and those
   * that use void* generic pointers.  It works with the latter
   * because both ANSI C and C++ allow castless assignment from
   * any pointer type to void*, and deal with argument conversions
   * as though doing an assignment.
   */
  return (void *) realloc( (char *) ptr, size );
}

void dice_yyfree (void * ptr )
{
  free( (char *) ptr );  /* see dice_yyrealloc() for (char *) cast */
}

#define YYTABLES_NAME "yytables"

#undef YY_NEW_FILE
#undef YY_FLUSH_BUFFER
#undef yy_set_bol
#undef yy_new_buffer
#undef yy_set_interactive
#undef yytext_ptr
#undef YY_DO_BEFORE_ACTION

#ifdef YY_DECL_IS_OURS
#undef YY_DECL_IS_OURS
#undef YY_DECL
#endif




extern int  XdmfExprInput();
extern void  XdmfExprUnput( int c );
extern void  XdmfExprOutput( int c );

#define input() XdmfExprInput()
#define unput(c) XdmfExprUnput((c))
#define output(c) XdmfExprOutput( ( c ) )

void XdmfYYUnput(int c, char* buf_ptr )
{
  yyunput(c, buf_ptr);
}

