eval_l.c

#line 1 "eval_l.c"

#line 3 "eval_l.c"

#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 6
#define YY_FLEX_SUBMINOR_VERSION 4
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif

#ifdef yy_create_buffer
#define fits_parser_yy_create_buffer_ALREADY_DEFINED
#else
#define yy_create_buffer fits_parser_yy_create_buffer
#endif

#ifdef yy_delete_buffer
#define fits_parser_yy_delete_buffer_ALREADY_DEFINED
#else
#define yy_delete_buffer fits_parser_yy_delete_buffer
#endif

#ifdef yy_scan_buffer
#define fits_parser_yy_scan_buffer_ALREADY_DEFINED
#else
#define yy_scan_buffer fits_parser_yy_scan_buffer
#endif

#ifdef yy_scan_string
#define fits_parser_yy_scan_string_ALREADY_DEFINED
#else
#define yy_scan_string fits_parser_yy_scan_string
#endif

#ifdef yy_scan_bytes
#define fits_parser_yy_scan_bytes_ALREADY_DEFINED
#else
#define yy_scan_bytes fits_parser_yy_scan_bytes
#endif

#ifdef yy_init_buffer
#define fits_parser_yy_init_buffer_ALREADY_DEFINED
#else
#define yy_init_buffer fits_parser_yy_init_buffer
#endif

#ifdef yy_flush_buffer
#define fits_parser_yy_flush_buffer_ALREADY_DEFINED
#else
#define yy_flush_buffer fits_parser_yy_flush_buffer
#endif

#ifdef yy_load_buffer_state
#define fits_parser_yy_load_buffer_state_ALREADY_DEFINED
#else
#define yy_load_buffer_state fits_parser_yy_load_buffer_state
#endif

#ifdef yy_switch_to_buffer
#define fits_parser_yy_switch_to_buffer_ALREADY_DEFINED
#else
#define yy_switch_to_buffer fits_parser_yy_switch_to_buffer
#endif

#ifdef yypush_buffer_state
#define fits_parser_yypush_buffer_state_ALREADY_DEFINED
#else
#define yypush_buffer_state fits_parser_yypush_buffer_state
#endif

#ifdef yypop_buffer_state
#define fits_parser_yypop_buffer_state_ALREADY_DEFINED
#else
#define yypop_buffer_state fits_parser_yypop_buffer_state
#endif

#ifdef yyensure_buffer_stack
#define fits_parser_yyensure_buffer_stack_ALREADY_DEFINED
#else
#define yyensure_buffer_stack fits_parser_yyensure_buffer_stack
#endif

#ifdef yylex
#define fits_parser_yylex_ALREADY_DEFINED
#else
#define yylex fits_parser_yylex
#endif

#ifdef yyrestart
#define fits_parser_yyrestart_ALREADY_DEFINED
#else
#define yyrestart fits_parser_yyrestart
#endif

#ifdef yylex_init
#define fits_parser_yylex_init_ALREADY_DEFINED
#else
#define yylex_init fits_parser_yylex_init
#endif

#ifdef yylex_init_extra
#define fits_parser_yylex_init_extra_ALREADY_DEFINED
#else
#define yylex_init_extra fits_parser_yylex_init_extra
#endif

#ifdef yylex_destroy
#define fits_parser_yylex_destroy_ALREADY_DEFINED
#else
#define yylex_destroy fits_parser_yylex_destroy
#endif

#ifdef yyget_debug
#define fits_parser_yyget_debug_ALREADY_DEFINED
#else
#define yyget_debug fits_parser_yyget_debug
#endif

#ifdef yyset_debug
#define fits_parser_yyset_debug_ALREADY_DEFINED
#else
#define yyset_debug fits_parser_yyset_debug
#endif

#ifdef yyget_extra
#define fits_parser_yyget_extra_ALREADY_DEFINED
#else
#define yyget_extra fits_parser_yyget_extra
#endif

#ifdef yyset_extra
#define fits_parser_yyset_extra_ALREADY_DEFINED
#else
#define yyset_extra fits_parser_yyset_extra
#endif

#ifdef yyget_in
#define fits_parser_yyget_in_ALREADY_DEFINED
#else
#define yyget_in fits_parser_yyget_in
#endif

#ifdef yyset_in
#define fits_parser_yyset_in_ALREADY_DEFINED
#else
#define yyset_in fits_parser_yyset_in
#endif

#ifdef yyget_out
#define fits_parser_yyget_out_ALREADY_DEFINED
#else
#define yyget_out fits_parser_yyget_out
#endif

#ifdef yyset_out
#define fits_parser_yyset_out_ALREADY_DEFINED
#else
#define yyset_out fits_parser_yyset_out
#endif

#ifdef yyget_leng
#define fits_parser_yyget_leng_ALREADY_DEFINED
#else
#define yyget_leng fits_parser_yyget_leng
#endif

#ifdef yyget_text
#define fits_parser_yyget_text_ALREADY_DEFINED
#else
#define yyget_text fits_parser_yyget_text
#endif

#ifdef yyget_lineno
#define fits_parser_yyget_lineno_ALREADY_DEFINED
#else
#define yyget_lineno fits_parser_yyget_lineno
#endif

#ifdef yyset_lineno
#define fits_parser_yyset_lineno_ALREADY_DEFINED
#else
#define yyset_lineno fits_parser_yyset_lineno
#endif

#ifdef yyget_column
#define fits_parser_yyget_column_ALREADY_DEFINED
#else
#define yyget_column fits_parser_yyget_column
#endif

#ifdef yyset_column
#define fits_parser_yyset_column_ALREADY_DEFINED
#else
#define yyset_column fits_parser_yyset_column
#endif

#ifdef yywrap
#define fits_parser_yywrap_ALREADY_DEFINED
#else
#define yywrap fits_parser_yywrap
#endif

#ifdef yyget_lval
#define fits_parser_yyget_lval_ALREADY_DEFINED
#else
#define yyget_lval fits_parser_yyget_lval
#endif

#ifdef yyset_lval
#define fits_parser_yyset_lval_ALREADY_DEFINED
#else
#define yyset_lval fits_parser_yyset_lval
#endif

#ifdef yyalloc
#define fits_parser_yyalloc_ALREADY_DEFINED
#else
#define yyalloc fits_parser_yyalloc
#endif

#ifdef yyrealloc
#define fits_parser_yyrealloc_ALREADY_DEFINED
#else
#define yyrealloc fits_parser_yyrealloc
#endif

#ifdef yyfree
#define fits_parser_yyfree_ALREADY_DEFINED
#else
#define yyfree fits_parser_yyfree
#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

/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
 * if you want the limit (max/min) macros for int types. 
 */
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS 1
#endif

#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;

/* 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

#ifndef SIZE_MAX
#define SIZE_MAX               (~(size_t)0)
#endif

#endif /* ! C99 */

#endif /* ! FLEXINT_H */

/* begin standard C++ headers. */

/* TODO: this is always defined, so inline it */
#define yyconst const

#if defined(__GNUC__) && __GNUC__ >= 3
#define yynoreturn __attribute__((__noreturn__))
#else
#define yynoreturn
#endif

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

/* Promotes a possibly negative, possibly signed char to an
 *   integer in range [0..255] for use as an array index.
 */
#define YY_SC_TO_UI(c) ((YY_CHAR) (c))

/* An opaque pointer. */
#ifndef YY_TYPEDEF_YY_SCANNER_T
#define YY_TYPEDEF_YY_SCANNER_T
typedef void* yyscan_t;
#endif

/* For convenience, these vars (plus the bison vars far below)
   are macros in the reentrant scanner. */
#define yyin yyg->yyin_r
#define yyout yyg->yyout_r
#define yyextra yyg->yyextra_r
#define yyleng yyg->yyleng_r
#define yytext yyg->yytext_r
#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)
#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
#define yy_flex_debug yyg->yy_flex_debug_r

/* 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 yyg->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 ((yyg->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 yyrestart( yyin , yyscanner )
#define YY_END_OF_BUFFER_CHAR 0

/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k.
 * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
 * Ditto for the __ia64__ case accordingly.
 */
#define YY_BUF_SIZE 32768
#else
#define YY_BUF_SIZE 16384
#endif /* __ia64__ */
#endif

/* The state buf must be large enough to hold one state per character in the main buffer.
 */
#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))

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

#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef size_t yy_size_t;
#endif

#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2
    
    #define YY_LESS_LINENO(n)
    #define YY_LINENO_REWIND_TO(ptr)
    
/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
	do \
		{ \
		/* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
		*yy_cp = yyg->yy_hold_char; \
		YY_RESTORE_YY_MORE_OFFSET \
		yyg->yy_c_buf_p = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
		YY_DO_BEFORE_ACTION; /* set up yytext again */ \
		} \
	while ( 0 )
#define unput(c) yyunput( c, yyg->yytext_ptr , yyscanner )

#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.
	 */
	int 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 yyrestart()), so that the user can continue scanning by
	 * just pointing yyin at a new input file.
	 */
#define YY_BUFFER_EOF_PENDING 2

	};
#endif /* !YY_STRUCT_YY_BUFFER_STATE */

/* 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 ( yyg->yy_buffer_stack \
                          ? yyg->yy_buffer_stack[yyg->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 yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]

void yyrestart ( FILE *input_file , yyscan_t yyscanner );
void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner );
YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size , yyscan_t yyscanner );
void yy_delete_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner );
void yy_flush_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner );
void yypush_buffer_state ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner );
void yypop_buffer_state ( yyscan_t yyscanner );

static void yyensure_buffer_stack ( yyscan_t yyscanner );
static void yy_load_buffer_state ( yyscan_t yyscanner );
static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file , yyscan_t yyscanner );
#define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER , yyscanner)

YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size , yyscan_t yyscanner );
YY_BUFFER_STATE yy_scan_string ( const char *yy_str , yyscan_t yyscanner );
YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len , yyscan_t yyscanner );

void *yyalloc ( yy_size_t , yyscan_t yyscanner );
void *yyrealloc ( void *, yy_size_t , yyscan_t yyscanner );
void yyfree ( void * , yyscan_t yyscanner );

#define yy_new_buffer yy_create_buffer
#define yy_set_interactive(is_interactive) \
	{ \
	if ( ! YY_CURRENT_BUFFER ){ \
        yyensure_buffer_stack (yyscanner); \
		YY_CURRENT_BUFFER_LVALUE =    \
            yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); \
	} \
	YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
	}
#define yy_set_bol(at_bol) \
	{ \
	if ( ! YY_CURRENT_BUFFER ){\
        yyensure_buffer_stack (yyscanner); \
		YY_CURRENT_BUFFER_LVALUE =    \
            yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); \
	} \
	YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
	}
#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

/* Begin user sect3 */
typedef flex_uint8_t YY_CHAR;

typedef int yy_state_type;

#define yytext_ptr yytext_r

static yy_state_type yy_get_previous_state ( yyscan_t yyscanner );
static yy_state_type yy_try_NUL_trans ( yy_state_type current_state  , yyscan_t yyscanner);
static int yy_get_next_buffer ( yyscan_t yyscanner );
static void yynoreturn yy_fatal_error ( const char* msg , yyscan_t yyscanner );

/* Done after the current pattern has been matched and before the
 * corresponding action - sets up yytext.
 */
#define YY_DO_BEFORE_ACTION \
	yyg->yytext_ptr = yy_bp; \
	yyleng = (int) (yy_cp - yy_bp); \
	yyg->yy_hold_char = *yy_cp; \
	*yy_cp = '\0'; \
	yyg->yy_c_buf_p = yy_cp;
#define YY_NUM_RULES 30
#define YY_END_OF_BUFFER 31
/* 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 const flex_int16_t yy_accept[174] =
    {   0,
        0,    0,   31,   29,    1,   28,   18,   29,   29,   29,
       29,   29,   29,   29,   10,    8,    8,   24,   29,   23,
       13,   13,   13,   13,    9,   13,   13,   13,   13,   13,
       17,   13,   13,   13,   13,   13,   13,   13,   29,    1,
       22,    0,   12,    0,   11,    0,   13,   20,    0,    0,
        0,    0,    0,    0,    0,   17,    0,   10,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,   10,    8,    0,    0,    0,    0,   26,   21,
       25,   13,   13,   13,    2,   13,   13,   13,    4,   13,
       13,   13,   13,    3,   13,   27,   13,   13,   13,   13,

       13,   13,   13,   13,   13,   19,    0,   11,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,   10,    5,    6,    7,
       14,   13,   23,   24,   13,   13,   13,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,   18,
        0,    0,   15,    0,    0,    0,    0,    0,    0,    0,
       16,    0,    0
    } ;

static const YY_CHAR 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,    5,    6,    7,    1,    8,    9,   10,
       11,   12,   13,    1,   13,   14,    1,   15,   16,   17,
       17,   17,   17,   17,   17,   18,   18,    1,    1,   19,
       20,   21,    1,    1,   22,   23,   24,   25,   26,   27,
       28,   29,   30,   31,   31,   32,   31,   33,   34,   31,
       35,   36,   31,   37,   38,   31,   31,   39,   31,   31,
        1,    1,   40,   41,   42,    1,   43,   44,   24,   45,

       46,   47,   48,   29,   49,   31,   31,   50,   31,   51,
       52,   31,   53,   54,   31,   55,   56,   31,   31,   57,
       31,   31,    1,   58,    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 const YY_CHAR yy_meta[59] =
    {   0,
        1,    1,    2,    1,    1,    1,    3,    1,    1,    1,
        1,    1,    1,    1,    4,    4,    4,    4,    1,    1,
        1,    4,    4,    4,    4,    4,    4,    5,    5,    5,
        5,    5,    5,    5,    5,    5,    5,    5,    5,    1,
        1,    5,    4,    4,    4,    4,    4,    5,    5,    5,
        5,    5,    5,    5,    5,    5,    5,    1
    } ;

static const flex_int16_t yy_base[182] =
    {   0,
        0,    0,  412,  413,  409,  413,  390,  404,  401,  400,
      398,  396,   34,  392,   70,  114,   16,  383,   46,  382,
       29,   84,  359,   28,  358,   52,  157,   64,   91,  128,
      358,    0,   40,   27,   69,   92,  100,  171,  340,  395,
      413,  391,  413,  388,  387,  386,  413,  413,  383,  357,
      358,  356,  336,  337,  335,  413,  139,  190,  352,  349,
       71,  111,  135,  347,  348,  330,  327,   59,   64,  116,
      325,  323,  175,    0,   59,  120,  326,    0,  413,  413,
      413,  153,  184,    0,  202,  209,  210,  219,  351,  220,
      228,  229,  211,  230,  240,  413,  221,  246,  254,  263,

      264,  265,  266,  239,  275,  413,  346,  342,  310,  313,
      309,  289,  292,  288,  275,  317,  327,  326,  325,  324,
      323,  322,  298,  320,  297,  287,  317,  315,  314,  312,
      311,  310,  249,  289,  243,  294,  298,  134,  246,    0,
      413,  285,  413,  413,  288,  308,  309,  261,  261,  256,
      221,  215,  246,  241,  223,  218,  213,  208,  197,  413,
      166,  160,  413,  128,  122,  150,  154,  105,  101,   96,
      413,   84,  413,  351,  354,  359,  364,  366,  368,  373,
       89
    } ;

static const flex_int16_t yy_def[182] =
    {   0,
      173,    1,  173,  173,  173,  173,  173,  174,  175,  176,
      173,  177,  173,  173,  173,  173,   16,  173,  173,  173,
      178,  178,  178,  178,  178,  178,  178,  178,  178,  178,
      173,  179,  178,  178,  178,  178,  178,  178,  173,  173,
      173,  174,  173,  180,  175,  176,  173,  173,  177,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,   17,  173,  173,  173,  181,  173,  173,
      173,  178,  178,  179,  178,  178,  178,  178,   27,  178,
      178,  178,  178,  178,  178,  173,  178,  178,  178,  178,

      178,  178,  178,  178,  178,  173,  180,  180,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  181,
      173,  178,  173,  173,  178,  178,  178,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,    0,  173,  173,  173,  173,  173,  173,  173,
      173
    } ;

static const flex_int16_t yy_nxt[472] =
    {   0,
        4,    5,    6,    7,    8,    9,   10,   11,   12,   13,
        4,   14,    4,   15,   16,   17,   17,   17,   18,   19,
       20,   21,   22,   23,   23,   24,   25,   26,   27,   23,
       23,   28,   29,   30,   23,   23,   25,   23,   23,    4,
       31,   32,   33,   22,   23,   34,   25,   35,   23,   36,
       37,   38,   23,   23,   25,   23,   23,   39,   50,  173,
       51,   83,   86,   52,   79,   80,   81,  173,   84,   84,
       84,  136,  173,  137,  137,  137,  137,   87,   53,   98,
       54,   84,   55,   57,   58,   58,   58,   58,   88,   90,
       97,   59,  140,   84,  171,   60,  118,   61,   85,   85,

       91,   62,   63,   64,  128,   84,  171,  119,   65,  130,
       84,  171,   66,  129,   99,   67,   92,   68,  131,   69,
       70,   71,   85,  100,   93,   84,   72,   73,   74,   74,
       74,   74,   84,   84,  138,  138,  120,  101,   75,   75,
       85,   84,   94,   94,   94,  103,  102,  121,  138,  138,
      172,  104,   57,  115,  115,  115,  115,   76,   75,   75,
      122,  132,  141,   95,  171,   77,   94,  133,  123,   84,
       78,   89,   89,   89,   89,  170,  169,  168,   89,   89,
       89,   89,   89,   89,   94,   94,   94,   94,   57,   58,
       58,   58,   58,  141,   84,   89,  167,  166,   84,   89,

       89,   89,   89,   89,   58,   58,   58,   58,  142,   94,
       96,  141,   84,   89,   75,   75,   85,   85,  141,  141,
      141,  160,   80,   81,  105,   84,   48,   94,  141,  141,
      141,   96,  143,   79,   75,   75,  160,  141,  141,  141,
       85,  144,   41,   84,   94,   94,   94,  145,  141,  141,
       84,   84,   84,  106,   48,  141,  163,  165,   85,   80,
       84,   84,   84,  141,  164,  146,  163,   81,   94,   84,
       84,   84,  141,  141,  141,  141,  143,   79,  144,   41,
       84,   84,  162,  161,  141,  139,   94,   84,  106,  115,
      115,  115,  115,  147,  141,   84,  159,  141,   48,   75,

       75,  160,  106,  158,   84,   84,   84,   84,  137,  137,
      137,  137,  137,  137,  137,  137,   84,  141,  141,   75,
       75,   48,  160,   41,  144,   79,   84,  143,   81,   84,
       80,  157,  156,  106,  155,   41,  144,   79,  143,   81,
       80,  154,  153,  152,  151,  150,  149,  148,  108,   84,
       84,   42,  108,   42,   42,   42,   45,   45,   45,   46,
      141,   46,   46,   46,   49,  139,   49,   49,   49,   82,
       82,   84,   84,  107,  135,  107,  107,  107,  134,  127,
      126,  125,  124,  117,  116,  114,  113,  112,  111,  110,
      109,   43,   47,  173,  108,   43,   40,  106,   96,   84,

       84,   81,   79,   56,   43,   48,   47,   44,   43,   41,
       40,  173,    3,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173
    } ;

static const flex_int16_t yy_chk[472] =
    {   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,    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,   13,   17,
       13,   21,   24,   13,   19,   19,   19,   17,   34,   24,
       21,   75,   17,   75,   75,   75,   75,   26,   13,   34,
       13,   33,   13,   15,   15,   15,   15,   15,   26,   28,
       33,   15,  181,   26,  172,   15,   61,   15,   22,   22,

       28,   15,   15,   15,   68,   28,  170,   61,   15,   69,
       35,  169,   15,   68,   35,   15,   29,   15,   69,   15,
       15,   15,   22,   35,   29,   22,   15,   16,   16,   16,
       16,   16,   29,   36,   76,   76,   62,   36,   16,   16,
       22,   37,   30,   30,   30,   37,   36,   62,  138,  138,
      168,   37,   57,   57,   57,   57,   57,   16,   16,   16,
       63,   70,   82,   30,  167,   16,   30,   70,   63,   30,
       16,   27,   27,   27,   27,  166,  165,  164,   27,   27,
       27,   27,   27,   27,   30,   38,   38,   38,   73,   73,
       73,   73,   73,   83,   82,   27,  162,  161,   27,   27,

       27,   27,   27,   27,   58,   58,   58,   58,   83,   38,
      159,   85,   38,   27,   58,   58,   85,   85,   86,   87,
       93,  158,   86,   87,   38,   83,  157,   38,   88,   90,
       97,  156,   88,   90,   58,   58,  155,   91,   92,   94,
       85,   91,   92,   85,   94,   94,   94,   93,  104,   95,
       86,   87,   93,   95,  154,   98,  153,  152,   85,   98,
       88,   90,   97,   99,  151,   97,  150,   99,   94,   91,
       92,   94,  100,  101,  102,  103,  100,  101,  102,  103,
      104,   95,  149,  148,  105,  139,   94,   98,  105,  115,
      115,  115,  115,  104,  142,   99,  135,  145,  142,  115,

      115,  145,  134,  133,  100,  101,  102,  103,  136,  136,
      136,  136,  137,  137,  137,  137,  105,  146,  147,  115,
      115,  146,  147,  132,  131,  130,  142,  129,  128,  145,
      127,  126,  125,  124,  123,  122,  121,  120,  119,  118,
      117,  116,  114,  113,  112,  111,  110,  109,  108,  146,
      147,  174,  107,  174,  174,  174,  175,  175,  175,  176,
       89,  176,  176,  176,  177,   77,  177,  177,  177,  178,
      178,  179,  179,  180,   72,  180,  180,  180,   71,   67,
       66,   65,   64,   60,   59,   55,   54,   53,   52,   51,
       50,   49,   46,   45,   44,   42,   40,   39,   31,   25,

       23,   20,   18,   14,   12,   11,   10,    9,    8,    7,
        5,    3,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173,  173,  173,  173,  173,  173,  173,  173,  173,  173,
      173
    } ;

/* 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
#line 1 "eval.l"
/************************************************************************/
/*                                                                      */
/*                       CFITSIO Lexical Parser                         */
/*                                                                      */
/* This specifies a thread-safe reentrant version of lex functions */
/* This specifies CFITSIO-unique names for lexer functions */
/* This facilitates calling between the Bison parser and this lexer */
#line 14 "eval.l"
/* This file is one of 3 files containing code which parses an          */
/* arithmetic expression and evaluates it in the context of an input    */
/* FITS file table extension.  The CFITSIO lexical parser is divided    */
/* into the following 3 parts/files: the CFITSIO "front-end",           */
/* eval_f.c, contains the interface between the user/CFITSIO and the    */
/* real core of the parser; the FLEX interpreter, eval_l.c, takes the   */
/* input string and parses it into tokens and identifies the FITS       */
/* information required to evaluate the expression (ie, keywords and    */
/* columns); and, the BISON grammar and evaluation routines, eval_y.c,  */
/* receives the FLEX output and determines and performs the actual      */
/* operations.  The files eval_l.c and eval_y.c are produced from       */
/* running flex and bison on the files eval.l and eval.y, respectively. */
/* (flex and bison are available from any GNU archive: see www.gnu.org) */
/*                                                                      */
/* The grammar rules, rather than evaluating the expression in situ,    */
/* builds a tree, or Nodal, structure mapping out the order of          */
/* operations and expression dependencies.  This "compilation" process  */
/* allows for much faster processing of multiple rows.  This technique  */
/* was developed by Uwe Lammers of the XMM Science Analysis System,     */
/* although the CFITSIO implementation is entirely code original.       */
/*                                                                      */
/*                                                                      */
/* Modification History:                                                */
/*                                                                      */
/*   Kent Blackburn      c1992  Original parser code developed for the  */
/*                              FTOOLS software package, in particular, */
/*                              the fselect task.                       */
/*   Kent Blackburn      c1995  BIT column support added                */
/*   Peter D Wilson   Feb 1998  Vector column support added             */
/*   Peter D Wilson   May 1998  Ported to CFITSIO library.  User        */
/*                              interface routines written, in essence  */
/*                              making fselect, fcalc, and maketime     */
/*                              capabilities available to all tools     */
/*                              via single function calls.              */
/*   Peter D Wilson   Jun 1998  Major rewrite of parser core, so as to  */
/*                              create a run-time evaluation tree,      */
/*                              inspired by the work of Uwe Lammers,    */
/*                              resulting in a speed increase of        */
/*                              10-100 times.                           */
/*   Peter D Wilson   Jul 1998  gtifilter(a,b,c,d) function added       */
/*   Peter D Wilson   Aug 1998  regfilter(a,b,c,d) function added       */
/*   Peter D Wilson   Jul 1999  Make parser fitsfile-independent,       */
/*                              allowing a purely vector-based usage    */
/*                                                                      */
/************************************************************************/

#include <math.h>
#include <string.h>
#include <ctype.h>
#ifdef sparc
#include <malloc.h>
#else
#include <stdlib.h>
#endif
#include "eval_defs.h"
#include "eval_tab.h"

/* This is a shorthand accessor to get at the "extra" data inside the
   lexer, which in our case is the lParse (ParseData) structure */
#define yylParse (yyextra)

/*****  Internal functions  *****/

       int fits_parser_yyGetVariable( ParseData *lParse, char *varName, FITS_PARSER_YYSTYPE *varVal );

static int find_variable( ParseData *lParse, char *varName );
static int expr_read( ParseData *lParse, char *buf, int nbytes );

/*****  Definitions  *****/

#define YY_NO_UNPUT   /*  Don't include YYUNPUT function  */
#define YY_NEVER_INTERACTIVE 1

#define MAXCHR 256
#define MAXBIT 128

#define OCT_0 "000"
#define OCT_1 "001"
#define OCT_2 "010"
#define OCT_3 "011"
#define OCT_4 "100"
#define OCT_5 "101"
#define OCT_6 "110"
#define OCT_7 "111"
#define OCT_X "xxx"

#define HEX_0 "0000"
#define HEX_1 "0001"
#define HEX_2 "0010"
#define HEX_3 "0011"
#define HEX_4 "0100"
#define HEX_5 "0101"
#define HEX_6 "0110"
#define HEX_7 "0111"
#define HEX_8 "1000"
#define HEX_9 "1001"
#define HEX_A "1010"
#define HEX_B "1011"
#define HEX_C "1100"
#define HEX_D "1101"
#define HEX_E "1110"
#define HEX_F "1111"
#define HEX_X "xxxx"

/* 
   MJT - 13 June 1996
   read from buffer instead of stdin
   (as per old ftools.skel)
*/
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
        if ( (result = expr_read( yylParse, (char *) buf, max_size )) < 0 ) \
            YY_FATAL_ERROR( "read() in flex scanner failed" );

#line 925 "eval_l.c"
#line 926 "eval_l.c"

#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

/* Holds the entire state of the reentrant scanner. */
struct yyguts_t
    {

    /* User-defined. Not touched by flex. */
    YY_EXTRA_TYPE yyextra_r;

    /* The rest are the same as the globals declared in the non-reentrant scanner. */
    FILE *yyin_r, *yyout_r;
    size_t yy_buffer_stack_top; /**< index of top of stack. */
    size_t yy_buffer_stack_max; /**< capacity of stack. */
    YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */
    char yy_hold_char;
    int yy_n_chars;
    int yyleng_r;
    char *yy_c_buf_p;
    int yy_init;
    int yy_start;
    int yy_did_buffer_switch_on_eof;
    int yy_start_stack_ptr;
    int yy_start_stack_depth;
    int *yy_start_stack;
    yy_state_type yy_last_accepting_state;
    char* yy_last_accepting_cpos;

    int yylineno_r;
    int yy_flex_debug_r;

    char *yytext_r;
    int yy_more_flag;
    int yy_more_len;

    YYSTYPE * yylval_r;

    }; /* end struct yyguts_t */

static int yy_init_globals ( yyscan_t yyscanner );

    /* This must go here because YYSTYPE and YYLTYPE are included
     * from bison output in section 1.*/
    #    define yylval yyg->yylval_r
    
int yylex_init (yyscan_t* scanner);

int yylex_init_extra ( YY_EXTRA_TYPE user_defined, yyscan_t* scanner);

/* Accessor methods to globals.
   These are made visible to non-reentrant scanners for convenience. */

int yylex_destroy ( yyscan_t yyscanner );

int yyget_debug ( yyscan_t yyscanner );

void yyset_debug ( int debug_flag , yyscan_t yyscanner );

YY_EXTRA_TYPE yyget_extra ( yyscan_t yyscanner );

void yyset_extra ( YY_EXTRA_TYPE user_defined , yyscan_t yyscanner );

FILE *yyget_in ( yyscan_t yyscanner );

void yyset_in  ( FILE * _in_str , yyscan_t yyscanner );

FILE *yyget_out ( yyscan_t yyscanner );

void yyset_out  ( FILE * _out_str , yyscan_t yyscanner );

			int yyget_leng ( yyscan_t yyscanner );

char *yyget_text ( yyscan_t yyscanner );

int yyget_lineno ( yyscan_t yyscanner );

void yyset_lineno ( int _line_number , yyscan_t yyscanner );

int yyget_column  ( yyscan_t yyscanner );

void yyset_column ( int _column_no , yyscan_t yyscanner );

YYSTYPE * yyget_lval ( yyscan_t yyscanner );

void yyset_lval ( YYSTYPE * yylval_param , yyscan_t yyscanner );

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

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap ( yyscan_t yyscanner );
#else
extern int yywrap ( yyscan_t yyscanner );
#endif
#endif

#ifndef YY_NO_UNPUT
    
    static void yyunput ( int c, char *buf_ptr  , yyscan_t yyscanner);
    
#endif

#ifndef yytext_ptr
static void yy_flex_strncpy ( char *, const char *, int , yyscan_t yyscanner);
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen ( const char * , yyscan_t yyscanner);
#endif

#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput ( yyscan_t yyscanner );
#else
static int input ( yyscan_t yyscanner );
#endif

#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k */
#define YY_READ_BUF_SIZE 16384
#else
#define YY_READ_BUF_SIZE 8192
#endif /* __ia64__ */
#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 do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0)
#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 = '*'; \
		int n; \
		for ( n = 0; n < max_size && \
			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
			buf[n] = (char) c; \
		if ( c == '\n' ) \
			buf[n++] = (char) c; \
		if ( c == EOF && ferror( yyin ) ) \
			YY_FATAL_ERROR( "input in flex scanner failed" ); \
		result = n; \
		} \
	else \
		{ \
		errno=0; \
		while ( (result = (int) fread(buf, 1, (yy_size_t) max_size, yyin)) == 0 && ferror(yyin)) \
			{ \
			if( errno != EINTR) \
				{ \
				YY_FATAL_ERROR( "input in flex scanner failed" ); \
				break; \
				} \
			errno=0; \
			clearerr(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 , yyscanner)
#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 yylex \
               (YYSTYPE * yylval_param , yyscan_t yyscanner);

#define YY_DECL int yylex \
               (YYSTYPE * yylval_param , yyscan_t yyscanner)
#endif /* !YY_DECL */

/* Code executed at the beginning of each rule, after yytext and 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 /*LINTED*/break;
#endif

#define YY_RULE_SETUP \
	YY_USER_ACTION

/** The main scanner function which does all the work.
 */
YY_DECL
{
	yy_state_type yy_current_state;
	char *yy_cp, *yy_bp;
	int yy_act;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

    yylval = yylval_param;

	if ( !yyg->yy_init )
		{
		yyg->yy_init = 1;

#ifdef YY_USER_INIT
		YY_USER_INIT;
#endif

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

		if ( ! yyin )
			yyin = stdin;

		if ( ! yyout )
			yyout = stdout;

		if ( ! YY_CURRENT_BUFFER ) {
			yyensure_buffer_stack (yyscanner);
			YY_CURRENT_BUFFER_LVALUE =
				yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner);
		}

		yy_load_buffer_state( yyscanner );
		}

	{
#line 158 "eval.l"


#line 1203 "eval_l.c"

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

		/* Support of yytext. */
		*yy_cp = yyg->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 = yyg->yy_start;
yy_match:
		do
			{
			YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ;
			if ( yy_accept[yy_current_state] )
				{
				yyg->yy_last_accepting_state = yy_current_state;
				yyg->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 >= 174 )
					yy_c = yy_meta[yy_c];
				}
			yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
			++yy_cp;
			}
		while ( yy_base[yy_current_state] != 413 );

yy_find_action:
		yy_act = yy_accept[yy_current_state];
		if ( yy_act == 0 )
			{ /* have to back up */
			yy_cp = yyg->yy_last_accepting_cpos;
			yy_current_state = yyg->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 = yyg->yy_hold_char;
			yy_cp = yyg->yy_last_accepting_cpos;
			yy_current_state = yyg->yy_last_accepting_state;
			goto yy_find_action;

case 1:
YY_RULE_SETUP
#line 160 "eval.l"
;
	YY_BREAK
case 2:
YY_RULE_SETUP
#line 161 "eval.l"
{
                  int len;
                  len = strlen(yytext);
		  while (yytext[len] == ' ')
			len--;
                  len = len - 1;
		  strncpy(yylval->str,&yytext[1],len);
		  yylval->str[len] = '\0';
		  return( BITSTR );
		}
	YY_BREAK
case 3:
YY_RULE_SETUP
#line 171 "eval.l"
{
                  int len;
                  char tmpstring[256];
                  char bitstring[256];
                  len = strlen(yytext);
		  if (len >= 256) {
		    char errMsg[100];
		    yylParse->status = PARSE_SYNTAX_ERR;
		    strcpy (errMsg,"Bit string exceeds maximum length: '");
		    strncat(errMsg, &(yytext[0]), 20);
		    strcat (errMsg,"...'");
		    ffpmsg (errMsg);
		    len = 0;
		  } else {
		    while (yytext[len] == ' ')
		      len--;
		    len = len - 1;
		    strncpy(tmpstring,&yytext[1],len);
		  }
                  tmpstring[len] = '\0';
                  bitstring[0] = '\0';
		  len = 0;
                  while ( tmpstring[len] != '\0')
                       {
			switch ( tmpstring[len] )
			      {
			       case '0':
					strcat(bitstring,OCT_0);
					break;
			       case '1':
					strcat(bitstring,OCT_1);
					break;
			       case '2':
					strcat(bitstring,OCT_2);
					break;
			       case '3':
					strcat(bitstring,OCT_3);
					break;
			       case '4':
					strcat(bitstring,OCT_4);
					break;
			       case '5':
					strcat(bitstring,OCT_5);
					break;
			       case '6':
					strcat(bitstring,OCT_6);
					break;
			       case '7':
					strcat(bitstring,OCT_7);
					break;
			       case 'x':
			       case 'X':
					strcat(bitstring,OCT_X);
					break;
			      }
			len++;
                       }
                  strcpy( yylval->str, bitstring );
		  return( BITSTR );
		}
	YY_BREAK
case 4:
YY_RULE_SETUP
#line 231 "eval.l"
{
                  int len;
                  char tmpstring[256];
                  char bitstring[256];
                  len = strlen(yytext);
		  if (len >= 256) {
		    char errMsg[100];
		    yylParse->status = PARSE_SYNTAX_ERR;
		    strcpy (errMsg,"Hex string exceeds maximum length: '");
		    strncat(errMsg, &(yytext[0]), 20);
		    strcat (errMsg,"...'");
		    ffpmsg (errMsg);
		    len = 0;
		  } else {
		    while (yytext[len] == ' ')
		      len--;
		    len = len - 1;
		    strncpy(tmpstring,&yytext[1],len);
		  }
                  tmpstring[len] = '\0';
                  bitstring[0] = '\0';
		  len = 0;
                  while ( tmpstring[len] != '\0')
                       {
			switch ( tmpstring[len] )
			      {
			       case '0':
					strcat(bitstring,HEX_0);
					break;
			       case '1':
					strcat(bitstring,HEX_1);
					break;
			       case '2':
					strcat(bitstring,HEX_2);
					break;
			       case '3':
					strcat(bitstring,HEX_3);
					break;
			       case '4':
					strcat(bitstring,HEX_4);
					break;
			       case '5':
					strcat(bitstring,HEX_5);
					break;
			       case '6':
					strcat(bitstring,HEX_6);
					break;
			       case '7':
					strcat(bitstring,HEX_7);
					break;
			       case '8':
					strcat(bitstring,HEX_8);
					break;
			       case '9':
					strcat(bitstring,HEX_9);
					break;
			       case 'a':
			       case 'A':
					strcat(bitstring,HEX_A);
					break;
			       case 'b':
			       case 'B':
					strcat(bitstring,HEX_B);
					break;
			       case 'c':
			       case 'C':
					strcat(bitstring,HEX_C);
					break;
			       case 'd':
			       case 'D':
					strcat(bitstring,HEX_D);
					break;
			       case 'e':
			       case 'E':
					strcat(bitstring,HEX_E);
					break;
			       case 'f':
			       case 'F':
					strcat(bitstring,HEX_F);
					break;
			       case 'x':
			       case 'X':
					strcat(bitstring,HEX_X);
					break;
			      }
			len++;
                       }

                  strcpy( yylval->str, bitstring );
		  return( BITSTR );
		}
	YY_BREAK
case 5:
YY_RULE_SETUP
#line 322 "eval.l"
{
		  long int constval = 0;
		  char *p;
		  for (p = &(yytext[2]); *p; p++) {
		    constval = (constval << 1) | (*p == '1');
		  }
		  yylval->lng = constval;
		  return( LONG );
		}
	YY_BREAK
case 6:
YY_RULE_SETUP
#line 331 "eval.l"
{
		  long int constval = 0;
		  char *p;
		  for (p = &(yytext[2]); *p; p++) {
		    constval = (constval << 3) | (*p - '0');
		  }
		  yylval->lng = constval;
		  return( LONG );
		}
	YY_BREAK
case 7:
YY_RULE_SETUP
#line 340 "eval.l"
{
		  long int constval = 0;
		  char *p;
		  for (p = &(yytext[2]); *p; p++) {
                    int v = (isdigit(*p) ? (*p - '0') : (*p - 'a' + 10));
                    constval = (constval << 4) | v;
		  }
		  yylval->lng = constval;
		  return( LONG );
		}
	YY_BREAK
case 8:
YY_RULE_SETUP
#line 352 "eval.l"
{
                  yylval->lng = atol(yytext);
		  return( LONG );
		}
	YY_BREAK
case 9:
YY_RULE_SETUP
#line 356 "eval.l"
{
                  if ((yytext[0] == 't') || (yytext[0] == 'T'))
		    yylval->log = 1;
		  else
		    yylval->log = 0;
		  return( BOOLEAN );
		}
	YY_BREAK
case 10:
YY_RULE_SETUP
#line 363 "eval.l"
{
                  yylval->dbl = atof(yytext);
		  return( DOUBLE );
		}
	YY_BREAK
case 11:
YY_RULE_SETUP
#line 367 "eval.l"
{
                  if(        !fits_strcasecmp(yytext,"#PI") ) {
		     yylval->dbl = (double)(4) * atan((double)(1));
		     return( DOUBLE );
		  } else if( !fits_strcasecmp(yytext,"#E") ) {
		     yylval->dbl = exp((double)(1));
		     return( DOUBLE );
		  } else if( !fits_strcasecmp(yytext,"#DEG") ) {
		     yylval->dbl = ((double)4)*atan((double)1)/((double)180);
		     return( DOUBLE );
		  } else if( !fits_strcasecmp(yytext,"#ROW") ) {
		     return( ROWREF );
		  } else if( !fits_strcasecmp(yytext,"#NULL") ) {
		     return( NULLREF );
		  } else if( !fits_strcasecmp(yytext,"#SNULL") ) {
		     return( SNULLREF );
		  } else {
                     int len; 
		     int result;
                     if (yytext[1] == '$') {
                        len = strlen(yytext) - 3;
                        yylval->str[0]     = '#';
                        strncpy(yylval->str+1,&yytext[2],len);
                        yylval->str[len+1] = '\0';
                        yytext = yylval->str;
		     }
                     result = (*yylParse->getData)(yylParse, yytext, (yylval));
		     return result;
                  }
                }
	YY_BREAK
case 12:
YY_RULE_SETUP
#line 397 "eval.l"
{
                  int len;
                  len = strlen(yytext) - 2;
		  if (len >= MAX_STRLEN) {
		    char errMsg[100];
		    yylParse->status = PARSE_SYNTAX_ERR;
		    strcpy (errMsg,"String exceeds maximum length: '");
		    strncat(errMsg, &(yytext[1]), 20);
		    strcat (errMsg,"...'");
		    ffpmsg (errMsg);
		    len = 0;
		  } else {
		    strncpy(yylval->str,&yytext[1],len);
		  }
		  yylval->str[len] = '\0';
		  return( STRING );
		}
	YY_BREAK
case 13:
YY_RULE_SETUP
#line 414 "eval.l"
{
		 int    len,type;

                 if (yytext[0] == '$') {
		    len = strlen(yytext) - 2;
		    strncpy(yylval->str,&yytext[1],len);
		    yylval->str[len] = '\0';
		    yytext = yylval->str;
		 } 
		 type = fits_parser_yyGetVariable(yylParse, yytext, (yylval));
		 return( type );
		}
	YY_BREAK
case 14:
YY_RULE_SETUP
#line 426 "eval.l"
{
                  char *fname;
		  int len=0;
                  fname = &(yylval->str[0]);
		  while( (fname[len]=toupper(yytext[len])) ) len++;

                  if(      FSTRCMP(fname,"BOX(")==0 
                        || FSTRCMP(fname,"CIRCLE(")==0 
                        || FSTRCMP(fname,"ELLIPSE(")==0 
                        || FSTRCMP(fname,"NEAR(")==0 
                        || FSTRCMP(fname,"ISNULL(")==0 
                         )
                     /* Return type is always boolean  */
		     return( BFUNCTION );

                  else if( FSTRCMP(fname,"GTIFILTER(")==0 )
                     return( GTIFILTER );

                  else if( FSTRCMP(fname,"GTIOVERLAP(")==0 )
                     return( GTIOVERLAP );

                  else if( FSTRCMP(fname,"GTIFIND(")==0 )
                     return( GTIFIND );

                  else if( FSTRCMP(fname,"REGFILTER(")==0 )
                     return( REGFILTER );

                  else if( FSTRCMP(fname,"STRSTR(")==0 )
                     return( IFUNCTION );  /* Returns integer */

                  else 
		     return( FUNCTION  );
		}
	YY_BREAK
case 15:
YY_RULE_SETUP
#line 459 "eval.l"
{ return( INTCAST ); }
	YY_BREAK
case 16:
YY_RULE_SETUP
#line 460 "eval.l"
{ return( FLTCAST ); }
	YY_BREAK
case 17:
YY_RULE_SETUP
#line 461 "eval.l"
{ return( POWER   ); }
	YY_BREAK
case 18:
YY_RULE_SETUP
#line 462 "eval.l"
{ return( NOT     ); }
	YY_BREAK
case 19:
YY_RULE_SETUP
#line 463 "eval.l"
{ return( OR      ); }
	YY_BREAK
case 20:
YY_RULE_SETUP
#line 464 "eval.l"
{ return( AND     ); }
	YY_BREAK
case 21:
YY_RULE_SETUP
#line 465 "eval.l"
{ return( EQ      ); }
	YY_BREAK
case 22:
YY_RULE_SETUP
#line 466 "eval.l"
{ return( NE      ); }
	YY_BREAK
case 23:
YY_RULE_SETUP
#line 467 "eval.l"
{ return( GT      ); }
	YY_BREAK
case 24:
YY_RULE_SETUP
#line 468 "eval.l"
{ return( LT      ); }
	YY_BREAK
case 25:
YY_RULE_SETUP
#line 469 "eval.l"
{ return( GTE     ); }
	YY_BREAK
case 26:
YY_RULE_SETUP
#line 470 "eval.l"
{ return( LTE     ); }
	YY_BREAK
case 27:
YY_RULE_SETUP
#line 471 "eval.l"
{ return( XOR     ); }
	YY_BREAK
case 28:
/* rule 28 can match eol */
YY_RULE_SETUP
#line 472 "eval.l"
{ return( '\n'    ); }
	YY_BREAK
case 29:
YY_RULE_SETUP
#line 473 "eval.l"
{ return( yytext[0] ); }
	YY_BREAK
case 30:
YY_RULE_SETUP
#line 474 "eval.l"
ECHO;
	YY_BREAK
#line 1694 "eval_l.c"
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 - yyg->yytext_ptr) - 1;

		/* Undo the effects of YY_DO_BEFORE_ACTION. */
		*yy_cp = yyg->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 yyin at a new source and called
			 * 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.
			 */
			yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
			YY_CURRENT_BUFFER_LVALUE->yy_input_file = 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 ( yyg->yy_c_buf_p <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] )
			{ /* This was really a NUL. */
			yy_state_type yy_next_state;

			yyg->yy_c_buf_p = yyg->yytext_ptr + yy_amount_of_matched_text;

			yy_current_state = yy_get_previous_state( yyscanner );

			/* 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 , yyscanner);

			yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;

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

			else
				{
				yy_cp = yyg->yy_c_buf_p;
				goto yy_find_action;
				}
			}

		else switch ( yy_get_next_buffer( yyscanner ) )
			{
			case EOB_ACT_END_OF_FILE:
				{
				yyg->yy_did_buffer_switch_on_eof = 0;

				if ( yywrap( yyscanner ) )
					{
					/* Note: because we've taken care in
					 * yy_get_next_buffer() to have set up
					 * 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.
					 */
					yyg->yy_c_buf_p = yyg->yytext_ptr + YY_MORE_ADJ;

					yy_act = YY_STATE_EOF(YY_START);
					goto do_action;
					}

				else
					{
					if ( ! yyg->yy_did_buffer_switch_on_eof )
						YY_NEW_FILE;
					}
				break;
				}

			case EOB_ACT_CONTINUE_SCAN:
				yyg->yy_c_buf_p =
					yyg->yytext_ptr + yy_amount_of_matched_text;

				yy_current_state = yy_get_previous_state( yyscanner );

				yy_cp = yyg->yy_c_buf_p;
				yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
				goto yy_match;

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

				yy_current_state = yy_get_previous_state( yyscanner );

				yy_cp = yyg->yy_c_buf_p;
				yy_bp = yyg->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 user's declarations */
} /* end of 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 (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
	char *source = yyg->yytext_ptr;
	int number_to_move, i;
	int ret_val;

	if ( yyg->yy_c_buf_p > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->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 ( yyg->yy_c_buf_p - yyg->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) (yyg->yy_c_buf_p - yyg->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 = yyg->yy_n_chars = 0;

	else
		{
			int 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_LVALUE;

			int yy_c_buf_p_offset =
				(int) (yyg->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. */
					yyrealloc( (void *) b->yy_ch_buf,
							 (yy_size_t) (b->yy_buf_size + 2) , yyscanner );
				}
			else
				/* Can't grow it, we don't own it. */
				b->yy_ch_buf = NULL;

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

			yyg->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]),
			yyg->yy_n_chars, num_to_read );

		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
		}

	if ( yyg->yy_n_chars == 0 )
		{
		if ( number_to_move == YY_MORE_ADJ )
			{
			ret_val = EOB_ACT_END_OF_FILE;
			yyrestart( yyin  , yyscanner);
			}

		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;

	if ((yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
		/* Extend the array by 50%, plus the number we really need. */
		int new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1);
		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc(
			(void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf, (yy_size_t) new_size , yyscanner );
		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
		/* "- 2" to take care of EOB's */
		YY_CURRENT_BUFFER_LVALUE->yy_buf_size = (int) (new_size - 2);
	}

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

	yyg->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 (yyscan_t yyscanner)
{
	yy_state_type yy_current_state;
	char *yy_cp;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	yy_current_state = yyg->yy_start;

	for ( yy_cp = yyg->yytext_ptr + YY_MORE_ADJ; yy_cp < yyg->yy_c_buf_p; ++yy_cp )
		{
		YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
		if ( yy_accept[yy_current_state] )
			{
			yyg->yy_last_accepting_state = yy_current_state;
			yyg->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 >= 174 )
				yy_c = yy_meta[yy_c];
			}
		yy_current_state = yy_nxt[yy_base[yy_current_state] + 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 , yyscan_t yyscanner)
{
	int yy_is_jam;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* This var may be unused depending upon options. */
	char *yy_cp = yyg->yy_c_buf_p;

	YY_CHAR yy_c = 1;
	if ( yy_accept[yy_current_state] )
		{
		yyg->yy_last_accepting_state = yy_current_state;
		yyg->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 >= 174 )
			yy_c = yy_meta[yy_c];
		}
	yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
	yy_is_jam = (yy_current_state == 173);

	(void)yyg;
	return yy_is_jam ? 0 : yy_current_state;
}

#ifndef YY_NO_UNPUT

    static void yyunput (int c, char * yy_bp , yyscan_t yyscanner)
{
	char *yy_cp;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

    yy_cp = yyg->yy_c_buf_p;

	/* undo effects of setting up yytext */
	*yy_cp = yyg->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. */
		int number_to_move = yyg->yy_n_chars + 2;
		char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
					YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
		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 =
			yyg->yy_n_chars = (int) 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;

	yyg->yytext_ptr = yy_bp;
	yyg->yy_hold_char = *yy_cp;
	yyg->yy_c_buf_p = yy_cp;
}

#endif

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

{
	int c;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	*yyg->yy_c_buf_p = yyg->yy_hold_char;

	if ( *yyg->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 ( yyg->yy_c_buf_p < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] )
			/* This was really a NUL. */
			*yyg->yy_c_buf_p = '\0';

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

			switch ( yy_get_next_buffer( yyscanner ) )
				{
				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. */
					yyrestart( yyin , yyscanner);

					/*FALLTHROUGH*/

				case EOB_ACT_END_OF_FILE:
					{
					if ( yywrap( yyscanner ) )
						return 0;

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

				case EOB_ACT_CONTINUE_SCAN:
					yyg->yy_c_buf_p = yyg->yytext_ptr + offset;
					break;
				}
			}
		}

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

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

/** Immediately switch to a different input stream.
 * @param input_file A readable stream.
 * @param yyscanner The scanner object.
 * @note This function does not reset the start condition to @c INITIAL .
 */
    void yyrestart  (FILE * input_file , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	if ( ! YY_CURRENT_BUFFER ){
        yyensure_buffer_stack (yyscanner);
		YY_CURRENT_BUFFER_LVALUE =
            yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner);
	}

	yy_init_buffer( YY_CURRENT_BUFFER, input_file , yyscanner);
	yy_load_buffer_state( yyscanner );
}

/** Switch to a different input buffer.
 * @param new_buffer The new input buffer.
 * @param yyscanner The scanner object.
 */
    void yy_switch_to_buffer  (YY_BUFFER_STATE  new_buffer , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	/* TODO. We should be able to replace this entire function body
	 * with
	 *		yypop_buffer_state();
	 *		yypush_buffer_state(new_buffer);
     */
	yyensure_buffer_stack (yyscanner);
	if ( YY_CURRENT_BUFFER == new_buffer )
		return;

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

	YY_CURRENT_BUFFER_LVALUE = new_buffer;
	yy_load_buffer_state( yyscanner );

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

static void yy_load_buffer_state  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
	yyg->yytext_ptr = yyg->yy_c_buf_p = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
	yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
	yyg->yy_hold_char = *yyg->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.
 * @param yyscanner The scanner object.
 * @return the allocated buffer state.
 */
    YY_BUFFER_STATE yy_create_buffer  (FILE * file, int  size , yyscan_t yyscanner)
{
	YY_BUFFER_STATE b;
    
	b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) , yyscanner );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in 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 *) yyalloc( (yy_size_t) (b->yy_buf_size + 2) , yyscanner );
	if ( ! b->yy_ch_buf )
		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );

	b->yy_is_our_buffer = 1;

	yy_init_buffer( b, file , yyscanner);

	return b;
}

/** Destroy the buffer.
 * @param b a buffer created with yy_create_buffer()
 * @param yyscanner The scanner object.
 */
    void yy_delete_buffer (YY_BUFFER_STATE  b , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	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 )
		yyfree( (void *) b->yy_ch_buf , yyscanner );

	yyfree( (void *) b , yyscanner );
}

/* Initializes or reinitializes a buffer.
 * This function is sometimes called more than once on the same buffer,
 * such as during a yyrestart() or at EOF.
 */
    static void yy_init_buffer  (YY_BUFFER_STATE  b, FILE * file , yyscan_t yyscanner)

{
	int oerrno = errno;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	yy_flush_buffer( b , yyscanner);

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

    /* If b is the current buffer, then yy_init_buffer was _probably_
     * called from 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.
 * @param yyscanner The scanner object.
 */
    void yy_flush_buffer (YY_BUFFER_STATE  b , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	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 )
		yy_load_buffer_state( yyscanner );
}

/** 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.
 *  @param yyscanner The scanner object.
 */
void yypush_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	if (new_buffer == NULL)
		return;

	yyensure_buffer_stack(yyscanner);

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

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

	/* copied from yy_switch_to_buffer. */
	yy_load_buffer_state( yyscanner );
	yyg->yy_did_buffer_switch_on_eof = 1;
}

/** Removes and deletes the top of the stack, if present.
 *  The next element becomes the new top.
 *  @param yyscanner The scanner object.
 */
void yypop_buffer_state (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	if (!YY_CURRENT_BUFFER)
		return;

	yy_delete_buffer(YY_CURRENT_BUFFER , yyscanner);
	YY_CURRENT_BUFFER_LVALUE = NULL;
	if (yyg->yy_buffer_stack_top > 0)
		--yyg->yy_buffer_stack_top;

	if (YY_CURRENT_BUFFER) {
		yy_load_buffer_state( yyscanner );
		yyg->yy_did_buffer_switch_on_eof = 1;
	}
}

/* Allocates the stack if it does not exist.
 *  Guarantees space for at least one push.
 */
static void yyensure_buffer_stack (yyscan_t yyscanner)
{
	yy_size_t num_to_alloc;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	if (!yyg->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; /* After all that talk, this was set to 1 anyways... */
		yyg->yy_buffer_stack = (struct yy_buffer_state**)yyalloc
								(num_to_alloc * sizeof(struct yy_buffer_state*)
								, yyscanner);
		if ( ! yyg->yy_buffer_stack )
			YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );

		memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*));

		yyg->yy_buffer_stack_max = num_to_alloc;
		yyg->yy_buffer_stack_top = 0;
		return;
	}

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

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

		num_to_alloc = yyg->yy_buffer_stack_max + grow_size;
		yyg->yy_buffer_stack = (struct yy_buffer_state**)yyrealloc
								(yyg->yy_buffer_stack,
								num_to_alloc * sizeof(struct yy_buffer_state*)
								, yyscanner);
		if ( ! yyg->yy_buffer_stack )
			YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );

		/* zero only the new slots.*/
		memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*));
		yyg->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
 * @param yyscanner The scanner object.
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE yy_scan_buffer  (char * base, yy_size_t  size , yyscan_t yyscanner)
{
	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 NULL;

	b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) , yyscanner );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );

	b->yy_buf_size = (int) (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 = NULL;
	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;

	yy_switch_to_buffer( b , yyscanner );

	return b;
}

/** Setup the input buffer state to scan a string. The next call to yylex() will
 * scan from a @e copy of @a str.
 * @param yystr a NUL-terminated string to scan
 * @param yyscanner The scanner object.
 * @return the newly allocated buffer state object.
 * @note If you want to scan bytes that may contain NUL values, then use
 *       yy_scan_bytes() instead.
 */
YY_BUFFER_STATE yy_scan_string (const char * yystr , yyscan_t yyscanner)
{
    
	return yy_scan_bytes( yystr, (int) strlen(yystr) , yyscanner);
}

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

	for ( i = 0; i < _yybytes_len; ++i )
		buf[i] = yybytes[i];

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

	b = yy_scan_buffer( buf, n , yyscanner);
	if ( ! b )
		YY_FATAL_ERROR( "bad buffer in 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 yynoreturn yy_fatal_error (const char* msg , yyscan_t yyscanner)
{
	struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	(void)yyg;
	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 yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
		yytext[yyleng] = yyg->yy_hold_char; \
		yyg->yy_c_buf_p = yytext + yyless_macro_arg; \
		yyg->yy_hold_char = *yyg->yy_c_buf_p; \
		*yyg->yy_c_buf_p = '\0'; \
		yyleng = yyless_macro_arg; \
		} \
	while ( 0 )

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

/** Get the user-defined data for this scanner.
 * @param yyscanner The scanner object.
 */
YY_EXTRA_TYPE yyget_extra  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyextra;
}

/** Get the current line number.
 * @param yyscanner The scanner object.
 */
int yyget_lineno  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

        if (! YY_CURRENT_BUFFER)
            return 0;
    
    return yylineno;
}

/** Get the current column number.
 * @param yyscanner The scanner object.
 */
int yyget_column  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

        if (! YY_CURRENT_BUFFER)
            return 0;
    
    return yycolumn;
}

/** Get the input stream.
 * @param yyscanner The scanner object.
 */
FILE *yyget_in  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyin;
}

/** Get the output stream.
 * @param yyscanner The scanner object.
 */
FILE *yyget_out  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyout;
}

/** Get the length of the current token.
 * @param yyscanner The scanner object.
 */
int yyget_leng  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyleng;
}

/** Get the current token.
 * @param yyscanner The scanner object.
 */

char *yyget_text  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yytext;
}

/** Set the user-defined data. This data is never touched by the scanner.
 * @param user_defined The data to be associated with this scanner.
 * @param yyscanner The scanner object.
 */
void yyset_extra (YY_EXTRA_TYPE  user_defined , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yyextra = user_defined ;
}

/** Set the current line number.
 * @param _line_number line number
 * @param yyscanner The scanner object.
 */
void yyset_lineno (int  _line_number , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

        /* lineno is only valid if an input buffer exists. */
        if (! YY_CURRENT_BUFFER )
           YY_FATAL_ERROR( "yyset_lineno called with no buffer" );
    
    yylineno = _line_number;
}

/** Set the current column.
 * @param _column_no column number
 * @param yyscanner The scanner object.
 */
void yyset_column (int  _column_no , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

        /* column is only valid if an input buffer exists. */
        if (! YY_CURRENT_BUFFER )
           YY_FATAL_ERROR( "yyset_column called with no buffer" );
    
    yycolumn = _column_no;
}

/** Set the input stream. This does not discard the current
 * input buffer.
 * @param _in_str A readable stream.
 * @param yyscanner The scanner object.
 * @see yy_switch_to_buffer
 */
void yyset_in (FILE *  _in_str , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yyin = _in_str ;
}

void yyset_out (FILE *  _out_str , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yyout = _out_str ;
}

int yyget_debug  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yy_flex_debug;
}

void yyset_debug (int  _bdebug , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yy_flex_debug = _bdebug ;
}

/* Accessor methods for yylval and yylloc */

YYSTYPE * yyget_lval  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yylval;
}

void yyset_lval (YYSTYPE *  yylval_param , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yylval = yylval_param;
}

/* User-visible API */

/* yylex_init is special because it creates the scanner itself, so it is
 * the ONLY reentrant function that doesn't take the scanner as the last argument.
 * That's why we explicitly handle the declaration, instead of using our macros.
 */
int yylex_init(yyscan_t* ptr_yy_globals)
{
    if (ptr_yy_globals == NULL){
        errno = EINVAL;
        return 1;
    }

    *ptr_yy_globals = (yyscan_t) yyalloc ( sizeof( struct yyguts_t ), NULL );

    if (*ptr_yy_globals == NULL){
        errno = ENOMEM;
        return 1;
    }

    /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */
    memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));

    return yy_init_globals ( *ptr_yy_globals );
}

/* yylex_init_extra has the same functionality as yylex_init, but follows the
 * convention of taking the scanner as the last argument. Note however, that
 * this is a *pointer* to a scanner, as it will be allocated by this call (and
 * is the reason, too, why this function also must handle its own declaration).
 * The user defined value in the first argument will be available to yyalloc in
 * the yyextra field.
 */
int yylex_init_extra( YY_EXTRA_TYPE yy_user_defined, yyscan_t* ptr_yy_globals )
{
    struct yyguts_t dummy_yyguts;

    yyset_extra (yy_user_defined, &dummy_yyguts);

    if (ptr_yy_globals == NULL){
        errno = EINVAL;
        return 1;
    }

    *ptr_yy_globals = (yyscan_t) yyalloc ( sizeof( struct yyguts_t ), &dummy_yyguts );

    if (*ptr_yy_globals == NULL){
        errno = ENOMEM;
        return 1;
    }

    /* By setting to 0xAA, we expose bugs in
    yy_init_globals. Leave at 0x00 for releases. */
    memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));

    yyset_extra (yy_user_defined, *ptr_yy_globals);

    return yy_init_globals ( *ptr_yy_globals );
}

static int yy_init_globals (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    /* Initialization is the same as for the non-reentrant scanner.
     * This function is called from yylex_destroy(), so don't allocate here.
     */

    yyg->yy_buffer_stack = NULL;
    yyg->yy_buffer_stack_top = 0;
    yyg->yy_buffer_stack_max = 0;
    yyg->yy_c_buf_p = NULL;
    yyg->yy_init = 0;
    yyg->yy_start = 0;

    yyg->yy_start_stack_ptr = 0;
    yyg->yy_start_stack_depth = 0;
    yyg->yy_start_stack =  NULL;

/* Defined in main.c */
#ifdef YY_STDINIT
    yyin = stdin;
    yyout = stdout;
#else
    yyin = NULL;
    yyout = NULL;
#endif

    /* For future reference: Set errno on error, since we are called by
     * yylex_init()
     */
    return 0;
}

/* yylex_destroy is for both reentrant and non-reentrant scanners. */
int yylex_destroy  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

    /* Pop the buffer stack, destroying each element. */
	while(YY_CURRENT_BUFFER){
		yy_delete_buffer( YY_CURRENT_BUFFER , yyscanner );
		YY_CURRENT_BUFFER_LVALUE = NULL;
		yypop_buffer_state(yyscanner);
	}

	/* Destroy the stack itself. */
	yyfree(yyg->yy_buffer_stack , yyscanner);
	yyg->yy_buffer_stack = NULL;

    /* Destroy the start condition stack. */
        yyfree( yyg->yy_start_stack , yyscanner );
        yyg->yy_start_stack = NULL;

    /* Reset the globals. This is important in a non-reentrant scanner so the next time
     * yylex() is called, initialization will occur. */
    yy_init_globals( yyscanner);

    /* Destroy the main struct (reentrant only). */
    yyfree ( yyscanner , yyscanner );
    yyscanner = NULL;
    return 0;
}

/*
 * Internal utility routines.
 */

#ifndef yytext_ptr
static void yy_flex_strncpy (char* s1, const char * s2, int n , yyscan_t yyscanner)
{
	struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	(void)yyg;

	int i;
	for ( i = 0; i < n; ++i )
		s1[i] = s2[i];
}
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (const char * s , yyscan_t yyscanner)
{
	int n;
	for ( n = 0; s[n]; ++n )
		;

	return n;
}
#endif

void *yyalloc (yy_size_t  size , yyscan_t yyscanner)
{
	struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	(void)yyg;
	return malloc(size);
}

void *yyrealloc  (void * ptr, yy_size_t  size , yyscan_t yyscanner)
{
	struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	(void)yyg;

	/* 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 realloc(ptr, size);
}

void yyfree (void * ptr , yyscan_t yyscanner)
{
	struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	(void)yyg;
	free( (char *) ptr );	/* see yyrealloc() for (char *) cast */
}

#define YYTABLES_NAME "yytables"

#line 474 "eval.l"


int yywrap(yyscan_t scanner)
{
  /* MJT -- 13 June 1996
     Supplied for compatibility with
     pre-2.5.1 versions of flex which
     do not recognize %option noyywrap 
  */
  return(1);
}

/* 
   expr_read is lifted from old ftools.skel. 
   Now we can use any version of flex with
   no .skel file necessary! MJT - 13 June 1996

   keep a memory of how many bytes have been
   read previously, so that an unlimited-sized
   buffer can be supported. PDW - 28 Feb 1998
*/

static int expr_read(ParseData *lParse, char *buf, int nbytes)
{
 int n;
 
 n = 0;
 if( !lParse->is_eobuf ) {
     do {
        buf[n++] = lParse->expr[lParse->index++];
       } while ((n<nbytes)&&(lParse->expr[lParse->index] != '\0'));
     if( lParse->expr[lParse->index] == '\0' ) lParse->is_eobuf = 1;
 }
 buf[n] = '\0';
 return(n);
}

int fits_parser_yyGetVariable( ParseData *lParse, char *varName, FITS_PARSER_YYSTYPE *thelval )
{
   int varNum, type;
   char errMsg[MAXVARNAME+25];

   varNum = find_variable( lParse, varName );
   if( varNum<0 ) {
      if( lParse->getData ) {
	 type = (*lParse->getData)( lParse, varName, thelval );
      } else {
	 type = pERROR;
	 lParse->status = PARSE_SYNTAX_ERR;
	 strcpy (errMsg,"Unable to find data: ");
	 strncat(errMsg, varName, MAXVARNAME);
	 ffpmsg (errMsg);
      }
   } else {
      /*  Convert variable type into expression type  */
      switch( lParse->varData[ varNum ].type ) {
      case LONG:
      case DOUBLE:   type =  COLUMN;  break;
      case BOOLEAN:  type = BCOLUMN;  break;
      case STRING:   type = SCOLUMN;  break;
      case BITSTR:   type =  BITCOL;  break;
      default:
	 type = pERROR;
	 lParse->status = PARSE_SYNTAX_ERR;
	 strcpy (errMsg,"Bad datatype for data: ");
	 strncat(errMsg, varName, MAXVARNAME);
	 ffpmsg (errMsg);
	 break;
      }
      thelval->lng = varNum;
   }
   return( type );
}

static int find_variable(ParseData *lParse, char *varName)
{
   int i;
 
   if( lParse->nCols )
      for( i=0; i<lParse->nCols; i++ ) {
         if( ! fits_strncasecmp(lParse->varData[i].name,varName,MAXVARNAME) ) {
            return( i );
         }
      }
   return( -1 );
}