scan.c   [plain text]


/* A lexical scanner generated by flex */

/* Scanner skeleton version:
 * $Header: /home/daffy/u0/vern/flex/RCS/flex.skl,v 2.91 96/09/10 16:58:48 vern Exp $
 */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5

#include <stdio.h>


/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
#ifdef c_plusplus
#ifndef __cplusplus
#define __cplusplus
#endif
#endif


#ifdef __cplusplus

#include <stdlib.h>
#include <unistd.h>

/* Use prototypes in function declarations. */
#define YY_USE_PROTOS

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

#else	/* ! __cplusplus */

#if __STDC__

#define YY_USE_PROTOS
#define YY_USE_CONST

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

#ifdef __TURBOC__
 #pragma warn -rch
 #pragma warn -use
#include <io.h>
#include <stdlib.h>
#define YY_USE_CONST
#define YY_USE_PROTOS
#endif

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


#ifdef YY_USE_PROTOS
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
#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 yyrestart( yyin )

#define YY_END_OF_BUFFER_CHAR 0

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

typedef struct yy_buffer_state *YY_BUFFER_STATE;

extern int yyleng;
extern FILE *yyin, *yyout;

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

/* The funky do-while in the following #define is used to turn the definition
 * int a single C statement (which needs a semi-colon terminator).  This
 * avoids problems with code like:
 *
 * 	if ( condition_holds )
 *		yyless( 5 );
 *	else
 *		do_something_else();
 *
 * Prior to using the do-while the compiler would get upset at the
 * "else" because it interpreted the "if" statement as being all
 * done when it reached the ';' after the yyless() call.
 */

/* Return all but the first 'n' matched characters back to the input stream. */

#define yyless(n) \
	do \
		{ \
		/* Undo effects of setting up yytext. */ \
		*yy_cp = yy_hold_char; \
		YY_RESTORE_YY_MORE_OFFSET \
		yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \
		YY_DO_BEFORE_ACTION; /* set up 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).
 */
typedef unsigned int yy_size_t;


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;

	/* 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
	};

static YY_BUFFER_STATE yy_current_buffer = 0;

/* 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".
 */
#define YY_CURRENT_BUFFER yy_current_buffer


/* yy_hold_char holds the character lost when yytext is formed. */
static char yy_hold_char;

static int yy_n_chars;		/* number of characters read into yy_ch_buf */


int 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 yywrap()'s to do buffer switches
 * instead of setting up a fresh yyin.  A bit of a hack ...
 */
static int yy_did_buffer_switch_on_eof;

void yyrestart YY_PROTO(( FILE *input_file ));

void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer ));
void yy_load_buffer_state YY_PROTO(( void ));
YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size ));
void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b ));
void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file ));
void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b ));
#define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer )

YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size ));
YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str ));
YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));

static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ));
static void yy_flex_free YY_PROTO(( void * ));

#define yy_new_buffer yy_create_buffer

#define yy_set_interactive(is_interactive) \
	{ \
	if ( ! yy_current_buffer ) \
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
	yy_current_buffer->yy_is_interactive = is_interactive; \
	}

#define yy_set_bol(at_bol) \
	{ \
	if ( ! yy_current_buffer ) \
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
	yy_current_buffer->yy_at_bol = at_bol; \
	}

#define YY_AT_BOL() (yy_current_buffer->yy_at_bol)

typedef unsigned char YY_CHAR;
FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
typedef int yy_state_type;
extern char *yytext;
#define yytext_ptr yytext

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

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

#define YY_NUM_RULES 44
#define YY_END_OF_BUFFER 45
static yyconst short int yy_accept[298] =
    {   0,
        0,    0,    2,    2,   45,   43,   38,   36,   30,   43,
        1,   31,   43,   27,   31,   27,   27,   26,   31,   42,
       34,   32,   34,   43,   27,   40,   40,   40,   40,   40,
       40,   40,   40,   40,   40,   40,   40,   40,   40,   40,
       40,   43,    2,    2,    3,    2,    2,    1,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,   38,
       34,    0,   41,   32,   28,   35,   42,    0,   39,   42,
       42,    0,   33,   37,   40,   40,   40,   40,   40,   40,

       40,   40,   40,   40,   10,   40,   40,   40,   40,   40,
       40,   40,   40,   40,   40,   40,   29,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,   42,    0,    0,   42,    0,
       40,   40,   40,   40,   40,    9,   40,   40,   40,   40,
       40,   40,   40,   40,   40,   40,   40,   40,   40,   40,
       40,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,

        2,    2,    2,    2,    2,    2,   16,   40,   40,   40,
       17,   19,   40,   40,   20,   40,   40,   40,   40,    6,
       18,   40,   40,   12,   40,   40,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    5,   40,   40,   40,
       14,   40,   40,   15,   24,   40,   13,   40,   11,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,   40,    4,   40,    7,   25,    8,   40,    2,
        2,    2,    2,    2,    2,    2,   40,   21,   40,    2,
        2,    2,   23,   22,    2,    2,    0

    } ;

static yyconst int 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,    1,    7,    8,    1,    9,
       10,   11,   12,   13,   14,   15,   16,   17,   17,   17,
       17,   17,   17,   17,   17,   17,   17,    1,   18,   19,
       20,   21,    1,    1,   22,   22,   22,   22,   22,   22,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
       23,   24,   25,   26,   27,    1,   28,   29,   30,   31,

       32,   33,   34,   35,   36,   37,   38,   39,   40,   41,
       42,   43,   44,   45,   46,   47,   48,   37,   49,   37,
       50,   37,   51,   52,   53,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    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 int yy_meta[54] =
    {   0,
        1,    1,    2,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    3,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        1,    1,    1
    } ;

static yyconst short int yy_base[302] =
    {   0,
        0,    0,   53,    0,  525,  526,  522,  526,  503,  517,
      526,  501,  512,  526,  499,   95,   94,   94,   99,  105,
      498,  114,  497,  513,  495,  466,  468,  470,  479,  471,
      467,    0,   81,  102,  105,  479,  462,  458,  473,   94,
      104,  452,    0,  501,  526,  482,  139,    0,  481,  492,
        0,  479,  131,  132,  131,  125,  132,  478,  150,  477,
      493,  475,  160,  115,  117,  126,  130,  125,  446,  183,
      184,  186,  187,  123,  445,  180,  185,  192,  440,  489,
      526,  485,  526,  526,  526,  526,  158,  486,  526,  162,
      221,  485,  526,  526,    0,  440,  454,  444,  451,  437,

      437,  442,  434,  451,    0,  432,  436,  436,  447,  438,
      437,  195,  444,  426,  425,  433,  526,    0,  466,    0,
      178,    0,    0,    0,    0,  222,  464,    0,  230,  233,
      463,    0,  417,   65,  189,  208,  193,  205,  213,  220,
      214,  235,  416,  218,  224,  227,  241,  234,  237,  243,
      246,  231,  232,  245,    0,  275,  460,  278,  279,  459,
      419,  432,  412,  422,  425,    0,  409,  408,  408,  406,
      418,  415,  404,  408,  401,  416,  398,  406,  397,  398,
      403,  287,  438,  288,  437,  182,  250,  239,  270,  275,
      391,  266,  268,  271,  273,  274,  288,  279,  285,  281,

      299,  390,  292,  287,  293,  298,    0,  399,  400,  394,
        0,    0,  392,  401,    0,  385,  384,  398,  382,    0,
        0,  383,  395,    0,  398,  393,  376,  294,  303,  302,
      375,  374,  306,  312,  373,  305,  308,  313,  310,  372,
      371,  314,  317,  370,  335,  332,    0,  376,  384,  370,
        0,  379,  367,    0,    0,  371,    0,  370,    0,  362,
      325,  336,  322,  361,  137,  323,  360,  359,  331,  358,
      333,  357,  356,    0,  353,    0,    0,    0,  355,  349,
      343,  327,  342,  340,  334,  338,  346,    0,  238,  344,
      236,  339,    0,    0,  177,  102,  526,  392,  120,  395,

      398
    } ;

static yyconst short int yy_def[302] =
    {   0,
      297,    1,  297,    3,  297,  297,  297,  297,  297,  298,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  299,  299,  299,  299,  299,
      299,  299,  299,  299,  299,  299,  299,  299,  299,  299,
      299,  297,  300,  300,  297,  300,  301,  300,  300,  300,
      300,  300,  300,  300,  300,  300,  300,  300,  300,  300,
      300,  300,  300,   63,   63,   63,   63,   63,   63,   63,
       63,   63,   63,   63,   63,   63,   63,   63,  300,  297,
      297,  298,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  299,  299,  299,  299,  299,  299,

      299,  299,  299,  299,  299,  299,  299,  299,  299,  299,
      299,  299,  299,  299,  299,  299,  297,  300,  300,  300,
      301,  300,  300,  300,  300,  300,  300,  300,  300,  300,
      300,  300,   63,   63,   63,   63,   63,   63,   63,   63,
       63,   63,   63,   63,   63,   63,   63,   63,   63,   63,
       63,   63,   63,   63,  300,  297,  297,  297,  297,  297,
      299,  299,  299,  299,  299,  299,  299,  299,  299,  299,
      299,  299,  299,  299,  299,  299,  299,  299,  299,  299,
      299,  300,  300,  300,  300,   63,   63,   63,   63,   63,
       63,   63,   63,   63,   63,   63,   63,   63,   63,   63,

       63,   63,   63,   63,   63,   63,  299,  299,  299,  299,
      299,  299,  299,  299,  299,  299,  299,  299,  299,  299,
      299,  299,  299,  299,  299,  299,   63,   63,   63,   63,
       63,   63,   63,   63,   63,   63,   63,   63,   63,   63,
       63,   63,   63,   63,   63,   63,  299,  299,  299,  299,
      299,  299,  299,  299,  299,  299,  299,  299,  299,   63,
       63,   63,   63,   63,   63,   63,   63,   63,   63,   63,
       63,   63,  299,  299,  299,  299,  299,  299,  299,   63,
       63,   63,   63,   63,   63,   63,  299,  299,  299,   63,
       63,   63,  299,  299,   63,   63,    0,  297,  297,  297,

      297
    } ;

static yyconst short int yy_nxt[580] =
    {   0,
        6,    7,    8,    9,   10,   11,   12,   13,   14,   14,
       15,   16,   14,   17,   18,   19,   20,   14,   21,   22,
       23,   20,   14,   24,   14,   25,    6,   26,   27,   28,
       29,   30,   31,   32,   33,   34,   32,   32,   35,   32,
       32,   36,   37,   38,   39,   40,   32,   32,   41,   32,
       14,   42,   14,   43,   44,   45,   46,   47,   48,   49,
       50,   51,   51,   52,   53,   51,   54,   55,   56,   57,
       51,   58,   59,   60,   57,   51,   61,   51,   62,   43,
       63,   64,   65,   66,   67,   68,   69,   70,   71,   69,
       69,   72,   69,   69,   73,   74,   75,   76,   77,   69,

       69,   78,   69,   51,   79,   51,   86,   86,  102,   89,
       87,  186,  133,   84,   84,   87,  103,   88,   84,   90,
       93,   91,   95,  113,   93,   93,   91,   93,   92,   93,
      104,  115,  106,   81,  105,  128,  107,  114,  116,   93,
      108,   82,  125,  122,  123,  125,  129,  126,  130,  133,
      123,  123,  126,  130,  127,  131,  132,  137,  136,  135,
      132,  132,  133,  132,  133,  132,  139,  148,  138,  120,
      133,  283,  133,  133,  156,  132,  133,  133,  159,  156,
       82,  157,  122,  159,  133,  160,  133,  133,  133,  133,
      133,  133,  133,  133,  133,  133,  133,  133,  133,  133,

      133,  133,  133,  133,  133,  133,  133,  134,  133,  133,
      140,  150,  142,  144,  151,  147,  143,  145,  141,  153,
      187,  146,  176,  227,  133,  189,  154,  133,  152,  133,
      133,  133,  133,  133,  133,   90,  133,   91,  182,  133,
      133,  177,   91,  182,   92,  183,  184,  129,  188,  130,
      190,  184,  133,  185,  130,  133,  131,  191,  192,  193,
      133,  133,  194,  195,  196,  133,  197,  133,  198,  199,
      201,  133,  200,  203,  133,  204,  205,  228,  133,  133,
      206,  133,  133,  133,  133,  229,  133,  294,  133,  202,
      133,  156,  133,  133,   87,  159,  156,  133,  157,   87,

      159,   88,  160,  182,  184,  230,  231,  236,  182,  184,
      183,  185,  232,  133,  233,  133,  234,  133,  133,  235,
      133,  133,  133,  237,  238,  239,  133,  240,  133,  241,
      243,  260,  133,  244,  133,  133,  246,  245,  261,  133,
      133,  133,  262,  264,  267,  133,  133,  263,  270,  133,
      133,  265,  133,  133,  266,  133,  268,  133,  269,  133,
      133,  133,  271,  272,  133,  280,  282,  281,  284,  133,
      133,  285,  133,  286,  133,  295,  291,  293,  133,  133,
      133,  133,  133,  133,  292,  133,  133,  133,  296,  133,
      133,  133,   82,   82,   82,  118,  290,  118,  121,  121,

      121,  289,  288,  287,  133,  133,  133,  133,  133,  133,
      279,  278,  277,  276,  275,  274,  273,  133,  133,  133,
      133,  133,  133,  133,  259,  258,  257,  256,  255,  254,
      253,  252,  251,  250,  249,  248,  247,  242,  133,  159,
      156,  226,  225,  224,  223,  222,  221,  220,  219,  218,
      217,  216,  215,  214,  213,  212,  211,  210,  209,  208,
      207,  159,  156,  133,  133,   91,  158,  119,  181,  180,
      179,  178,  175,  174,  173,  172,  171,  170,  169,  168,
      167,  166,  165,  164,  163,  162,  161,   91,  158,   83,
       80,  155,  149,  133,  123,   94,  120,  120,  123,  124,

      123,  120,  119,  117,  112,  111,  110,  109,  101,  100,
       99,   98,   97,   96,   84,   94,   81,   81,   84,   85,
       84,   83,   81,   80,  297,    5,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297
    } ;

static yyconst short int yy_chk[580] =
    {   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,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,

        3,    3,    3,    3,    3,    3,   16,   17,   33,   19,
       18,  134,  134,   17,   16,   18,   33,   18,   19,   20,
       22,   20,  299,   40,   22,   22,   20,   22,   20,   22,
       34,   41,   35,   22,   34,   56,   35,   40,   41,   22,
       35,   47,   53,   47,   56,   54,   57,   55,   57,  296,
       53,   54,   55,   57,   55,   57,   59,   66,   65,   64,
       59,   59,   64,   59,   65,   59,   68,   74,   67,   59,
       74,  265,   68,   66,   87,   59,   63,   67,   90,   87,
      121,   87,  121,   90,  265,   90,   63,   63,   63,   63,
       63,   63,   63,   63,   63,   63,   63,   63,   63,   63,

       63,   63,   63,   63,   63,   63,   63,   63,   63,   63,
       70,   76,   71,   72,   77,   73,   71,   72,   70,   78,
      135,   72,  112,  186,  295,  137,   78,   76,   77,  186,
       70,   71,   77,   72,   73,   91,  135,   91,  126,   78,
      137,  112,   91,  126,   91,  126,  129,  130,  136,  130,
      138,  129,  138,  129,  130,  136,  130,  139,  140,  141,
      139,  141,  142,  144,  145,  144,  146,  140,  147,  148,
      150,  145,  149,  151,  146,  152,  153,  187,  152,  153,
      154,  148,  142,  291,  149,  188,  188,  289,  147,  150,
      150,  156,  154,  151,  158,  159,  156,  187,  156,  158,

      159,  158,  159,  182,  184,  189,  190,  196,  182,  184,
      182,  184,  192,  192,  193,  193,  194,  189,  194,  195,
      195,  196,  190,  197,  198,  199,  198,  200,  200,  201,
      203,  228,  199,  204,  204,  197,  206,  205,  229,  203,
      205,  228,  230,  234,  238,  206,  201,  233,  243,  230,
      229,  236,  236,  233,  237,  237,  239,  239,  242,  234,
      238,  242,  245,  246,  243,  261,  263,  262,  266,  263,
      266,  269,  261,  271,  282,  290,  282,  287,  269,  246,
      271,  285,  245,  262,  286,  286,  292,  284,  292,  283,
      281,  290,  298,  298,  298,  300,  280,  300,  301,  301,

      301,  279,  275,  273,  272,  270,  268,  267,  264,  260,
      258,  256,  253,  252,  250,  249,  248,  244,  241,  240,
      235,  232,  231,  227,  226,  225,  223,  222,  219,  218,
      217,  216,  214,  213,  210,  209,  208,  202,  191,  185,
      183,  181,  180,  179,  178,  177,  176,  175,  174,  173,
      172,  171,  170,  169,  168,  167,  165,  164,  163,  162,
      161,  160,  157,  143,  133,  131,  127,  119,  116,  115,
      114,  113,  111,  110,  109,  108,  107,  106,  104,  103,
      102,  101,  100,   99,   98,   97,   96,   92,   88,   82,
       80,   79,   75,   69,   62,   61,   60,   58,   52,   50,

       49,   46,   44,   42,   39,   38,   37,   36,   31,   30,
       29,   28,   27,   26,   25,   24,   23,   21,   15,   13,
       12,   10,    9,    7,    5,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297,  297,
      297,  297,  297,  297,  297,  297,  297,  297,  297
    } ;

static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;

/* 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 *yytext;
#line 1 "scan.l"
#define INITIAL 0
#line 2 "scan.l"
/* scan.l: the (f)lex description file for the scanner. */

/*  This file is part of GNU bc.
    Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License , or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; see the file COPYING.  If not, write to
      The Free Software Foundation, Inc.
      59 Temple Place, Suite 330
      Boston, MA 02111 USA

    You may contact the author by:
       e-mail:  philnelson@acm.org
      us-mail:  Philip A. Nelson
                Computer Science Department, 9062
                Western Washington University
                Bellingham, WA 98226-9062
       
*************************************************************************/

#include "bcdefs.h"
#include "bc.h"
#include "global.h"
#include "proto.h"
#include <errno.h>

/* Using flex, we can ask for a smaller input buffer.  With lex, this
   does nothing! */

#ifdef SMALL_BUF
#undef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 512
#endif

/* Force . as last for now. */
#define DOT_IS_LAST

/* We want to define our own yywrap. */
#undef yywrap
_PROTOTYPE(int yywrap, (void));

#if defined(LIBEDIT)
/* Support for the BSD libedit with history for
   nicer input on the interactive part of input. */

#include <histedit.h>

/* Have input call the following function. */
#undef  YY_INPUT
#define YY_INPUT(buf,result,max_size) \
		bcel_input((char *)buf, &result, max_size)

/* Variables to help interface editline with bc. */
static const char *bcel_line = (char *)NULL;
static int   bcel_len = 0;


/* Required to get rid of that ugly ? default prompt! */
char *
null_prompt (EditLine *el)
{
  return "";
}


/* bcel_input puts upto MAX characters into BUF with the number put in
   BUF placed in *RESULT.  If the yy input file is the same as
   stdin, use editline.  Otherwise, just read it.
*/

static void
bcel_input (buf, result, max)
	char *buf;
	int  *result;
	int   max;
{
  if (!edit || yyin != stdin)
    {
      while ( (*result = read( fileno(yyin), buf, max )) < 0 )
        if (errno != EINTR)
	  {
	    yyerror( "read() in flex scanner failed" );
	    exit (1);
	  }
      return;
    }

  /* Do we need a new string? */
  if (bcel_len == 0)
    {
      bcel_line = el_gets(edit, &bcel_len);
      if (bcel_line == NULL) {
	/* end of file */
	*result = 0;
	bcel_len = 0;
	return;
      }
      if (bcel_len != 0)
	history (hist, &histev, H_ENTER, bcel_line); 
      fflush (stdout);
    }

  if (bcel_len <= max)
    {
      strncpy (buf, bcel_line, bcel_len);
      *result = bcel_len;
      bcel_len = 0;
    }
  else
    {
      strncpy (buf, bcel_line, max);
      *result = max;
      bcel_line += max;
      bcel_len -= max;
    }
}
#endif

#ifdef READLINE
/* Support for the readline and history libraries.  This allows
   nicer input on the interactive part of input. */

/* Have input call the following function. */
#undef  YY_INPUT
#define YY_INPUT(buf,result,max_size) \
		rl_input((char *)buf, &result, max_size)

/* Variables to help interface readline with bc. */
static char *rl_line = (char *)NULL;
static char *rl_start = (char *)NULL;
static int   rl_len = 0;

/* Definitions for readline access. */
extern FILE *rl_instream;
_PROTOTYPE(char *readline, (char *));

/* rl_input puts upto MAX characters into BUF with the number put in
   BUF placed in *RESULT.  If the yy input file is the same as
   rl_instream (stdin), use readline.  Otherwise, just read it.
*/

static void
rl_input (buf, result, max)
	char *buf;
	int  *result;
	int   max;
{
  if (yyin != rl_instream)
    {
      while ( (*result = read( fileno(yyin), buf, max )) < 0 )
        if (errno != EINTR)
	  {
	    yyerror( "read() in flex scanner failed" );
	    exit (1);
	  }
      return;
    }

  /* Do we need a new string? */
  if (rl_len == 0)
    {
      if (rl_start)
	free(rl_start);
      rl_start = readline ("");
      if (rl_start == NULL) {
	/* end of file */
	*result = 0;
	rl_len = 0;
	return;
      }
      rl_line = rl_start;
      rl_len = strlen (rl_line)+1;
      if (rl_len != 1)
	add_history (rl_line); 
      rl_line[rl_len-1] = '\n';
      fflush (stdout);
    }

  if (rl_len <= max)
    {
      strncpy (buf, rl_line, rl_len);
      *result = rl_len;
      rl_len = 0;
    }
  else
    {
      strncpy (buf, rl_line, max);
      *result = max;
      rl_line += max;
      rl_len -= max;
    }
}
#endif

#if !defined(READLINE) && !defined(LIBEDIT)

/* MINIX returns from read with < 0 if SIGINT is  encountered.
   In flex, we can redefine YY_INPUT to the following.  In lex, this
   does nothing! */
#undef  YY_INPUT
#define YY_INPUT(buf,result,max_size) \
	while ( (result = read( fileno(yyin), (char *) buf, max_size )) < 0 ) \
	    if (errno != EINTR) \
		YY_FATAL_ERROR( "read() in flex scanner failed" );
#endif

#define slcomment 1

#line 809 "lex.yy.c"

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

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

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

#ifndef yytext_ptr
static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int ));
#endif

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

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

#if YY_STACK_USED
static int yy_start_stack_ptr = 0;
static int yy_start_stack_depth = 0;
static int *yy_start_stack = 0;
#ifndef YY_NO_PUSH_STATE
static void yy_push_state YY_PROTO(( int new_state ));
#endif
#ifndef YY_NO_POP_STATE
static void yy_pop_state YY_PROTO(( void ));
#endif
#ifndef YY_NO_TOP_STATE
static int yy_top_state YY_PROTO(( void ));
#endif

#else
#define YY_NO_PUSH_STATE 1
#define YY_NO_POP_STATE 1
#define YY_NO_TOP_STATE 1
#endif

#ifdef YY_MALLOC_DECL
YY_MALLOC_DECL
#else
#if __STDC__
#ifndef __cplusplus
#include <stdlib.h>
#endif
#else
/* Just try to get by without declaring the routines.  This will fail
 * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
 * or sizeof(void*) != sizeof(int).
 */
#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( yytext, yyleng, 1, 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->yy_is_interactive ) \
		{ \
		int c = '*', 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 if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \
		  && ferror( yyin ) ) \
		YY_FATAL_ERROR( "input in flex scanner failed" );
#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

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL int yylex YY_PROTO(( void ))
#endif

/* 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 break;
#endif

#define YY_RULE_SETUP \
	YY_USER_ACTION

YY_DECL
	{
	register yy_state_type yy_current_state;
	register char *yy_cp, *yy_bp;
	register int yy_act;

#line 222 "scan.l"

#line 962 "lex.yy.c"

	if ( yy_init )
		{
		yy_init = 0;

#ifdef YY_USER_INIT
		YY_USER_INIT;
#endif

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

		if ( ! yyin )
			yyin = stdin;

		if ( ! yyout )
			yyout = stdout;

		if ( ! yy_current_buffer )
			yy_current_buffer =
				yy_create_buffer( yyin, YY_BUF_SIZE );

		yy_load_buffer_state();
		}

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

		/* Support of 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 >= 298 )
					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] != 526 );

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
#line 223 "scan.l"
{
 		  if (!std_only)
		    BEGIN(slcomment);
 		  else
		    yyerror ("illegal character: #");
		}
	YY_BREAK
case 2:
YY_RULE_SETUP
#line 229 "scan.l"
{ BEGIN(INITIAL); }
	YY_BREAK
case 3:
YY_RULE_SETUP
#line 230 "scan.l"
{ line_no++; BEGIN(INITIAL); return(ENDOFLINE); }
	YY_BREAK
case 4:
YY_RULE_SETUP
#line 231 "scan.l"
return(Define);
	YY_BREAK
case 5:
YY_RULE_SETUP
#line 232 "scan.l"
return(Break);
	YY_BREAK
case 6:
YY_RULE_SETUP
#line 233 "scan.l"
return(Quit);
	YY_BREAK
case 7:
YY_RULE_SETUP
#line 234 "scan.l"
return(Length);
	YY_BREAK
case 8:
YY_RULE_SETUP
#line 235 "scan.l"
return(Return);
	YY_BREAK
case 9:
YY_RULE_SETUP
#line 236 "scan.l"
return(For);
	YY_BREAK
case 10:
YY_RULE_SETUP
#line 237 "scan.l"
return(If);
	YY_BREAK
case 11:
YY_RULE_SETUP
#line 238 "scan.l"
return(While);
	YY_BREAK
case 12:
YY_RULE_SETUP
#line 239 "scan.l"
return(Sqrt);
	YY_BREAK
case 13:
YY_RULE_SETUP
#line 240 "scan.l"
return(Scale);
	YY_BREAK
case 14:
YY_RULE_SETUP
#line 241 "scan.l"
return(Ibase);
	YY_BREAK
case 15:
YY_RULE_SETUP
#line 242 "scan.l"
return(Obase);
	YY_BREAK
case 16:
YY_RULE_SETUP
#line 243 "scan.l"
return(Auto);
	YY_BREAK
case 17:
YY_RULE_SETUP
#line 244 "scan.l"
return(Else);
	YY_BREAK
case 18:
YY_RULE_SETUP
#line 245 "scan.l"
return(Read);
	YY_BREAK
case 19:
YY_RULE_SETUP
#line 246 "scan.l"
return(Halt);
	YY_BREAK
case 20:
YY_RULE_SETUP
#line 247 "scan.l"
return(Last);
	YY_BREAK
case 21:
YY_RULE_SETUP
#line 248 "scan.l"
{
#if defined(READLINE) || defined(LIBEDIT)
	  return(HistoryVar);
#else
	  yylval.s_value = strcopyof(yytext); return(NAME);
#endif
	}
	YY_BREAK
case 22:
YY_RULE_SETUP
#line 256 "scan.l"
return(Warranty);
	YY_BREAK
case 23:
YY_RULE_SETUP
#line 257 "scan.l"
return(Continue);
	YY_BREAK
case 24:
YY_RULE_SETUP
#line 258 "scan.l"
return(Print);
	YY_BREAK
case 25:
YY_RULE_SETUP
#line 259 "scan.l"
return(Limits);
	YY_BREAK
case 26:
YY_RULE_SETUP
#line 260 "scan.l"
{
#ifdef DOT_IS_LAST
       return(Last);
#else
       yyerror ("illegal character: %s",yytext);
#endif
    }
	YY_BREAK
case 27:
YY_RULE_SETUP
#line 267 "scan.l"
{ yylval.c_value = yytext[0]; 
					      return((int)yytext[0]); }
	YY_BREAK
case 28:
YY_RULE_SETUP
#line 269 "scan.l"
{ return(AND); }
	YY_BREAK
case 29:
YY_RULE_SETUP
#line 270 "scan.l"
{ return(OR); }
	YY_BREAK
case 30:
YY_RULE_SETUP
#line 271 "scan.l"
{ return(NOT); }
	YY_BREAK
case 31:
YY_RULE_SETUP
#line 272 "scan.l"
{ yylval.c_value = yytext[0]; return((int)yytext[0]); }
	YY_BREAK
case 32:
YY_RULE_SETUP
#line 273 "scan.l"
{ yylval.c_value = yytext[0]; return(ASSIGN_OP); }
	YY_BREAK
case 33:
YY_RULE_SETUP
#line 274 "scan.l"
{ 
#ifdef OLD_EQ_OP
			 char warn_save;
			 warn_save = warn_not_std;
			 warn_not_std = TRUE;
			 warn ("Old fashioned =<op>");
			 warn_not_std = warn_save;
			 yylval.c_value = yytext[1];
#else
			 yylval.c_value = '=';
			 yyless (1);
#endif
			 return(ASSIGN_OP);
		       }
	YY_BREAK
case 34:
YY_RULE_SETUP
#line 288 "scan.l"
{ yylval.s_value = strcopyof(yytext); return(REL_OP); }
	YY_BREAK
case 35:
YY_RULE_SETUP
#line 289 "scan.l"
{ yylval.c_value = yytext[0]; return(INCR_DECR); }
	YY_BREAK
case 36:
YY_RULE_SETUP
#line 290 "scan.l"
{ line_no++; return(ENDOFLINE); }
	YY_BREAK
case 37:
YY_RULE_SETUP
#line 291 "scan.l"
{  line_no++;  /* ignore a "quoted" newline */ }
	YY_BREAK
case 38:
YY_RULE_SETUP
#line 292 "scan.l"
{ /* ignore spaces and tabs */ }
	YY_BREAK
case 39:
YY_RULE_SETUP
#line 293 "scan.l"
{
	int c;

	for (;;)
	  {
	    while ( ((c=input()) != '*') && (c != EOF)) 
	      /* eat it */
	      if (c == '\n') line_no++;
	    if (c == '*')
 	      {
		while ( (c=input()) == '*') /* eat it*/;
		if (c == '/') break; /* at end of comment */
		if (c == '\n') line_no++;
	      }
	    if (c == EOF)
	      {
		fprintf (stderr,"EOF encountered in a comment.\n");
		break;
	      }
	  }
      }
	YY_BREAK
case 40:
YY_RULE_SETUP
#line 314 "scan.l"
{ yylval.s_value = strcopyof(yytext); return(NAME); }
	YY_BREAK
case 41:
YY_RULE_SETUP
#line 315 "scan.l"
{
 	      unsigned char *look;
	      int count = 0;
	      yylval.s_value = strcopyof(yytext);
	      for (look = yytext; *look != 0; look++)
		{
		  if (*look == '\n') line_no++;
		  if (*look == '"')  count++;
		}
	      if (count != 2) yyerror ("NUL character in string.");
	      return(STRING);
	    }
	YY_BREAK
case 42:
YY_RULE_SETUP
#line 327 "scan.l"
{
	      unsigned char *src, *dst;
	      int len;
	      /* remove a trailing decimal point. */
	      len = strlen(yytext);
	      if (yytext[len-1] == '.')
	        yytext[len-1] = 0;
	      /* remove leading zeros. */
	      src = yytext;
	      dst = yytext;
	      while (*src == '0') src++;
	      if (*src == 0) src--;
	      /* Copy strings removing the newlines. */
	      while (*src != 0)
		{
	          if (*src == '\\')
		    {
		      src++; src++;
		      line_no++;
		    }
		  else
		    *dst++ = *src++;
	        }
	      *dst = 0;
	      yylval.s_value = strcopyof(yytext); 
	      return(NUMBER);
	    }
	YY_BREAK
case 43:
YY_RULE_SETUP
#line 354 "scan.l"
{
	  if (yytext[0] < ' ')
	    yyerror ("illegal character: ^%c",yytext[0] + '@');
	  else
	    if (yytext[0] > '~')
	      yyerror ("illegal character: \\%03o", (int) yytext[0]);
	    else
	      yyerror ("illegal character: %s",yytext);
	}
	YY_BREAK
case 44:
YY_RULE_SETUP
#line 363 "scan.l"
ECHO;
	YY_BREAK
#line 1361 "lex.yy.c"
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(slcomment):
	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->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.
			 */
			yy_n_chars = yy_current_buffer->yy_n_chars;
			yy_current_buffer->yy_input_file = yyin;
			yy_current_buffer->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->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 ( yywrap() )
					{
					/* 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.
					 */
					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->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 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()
	{
	register char *dest = yy_current_buffer->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->yy_ch_buf[yy_n_chars + 1] )
		YY_FATAL_ERROR(
		"fatal flex scanner internal error--end of buffer missed" );

	if ( yy_current_buffer->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->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->yy_n_chars = yy_n_chars = 0;

	else
		{
		int num_to_read =
			yy_current_buffer->yy_buf_size - number_to_move - 1;

		while ( num_to_read <= 0 )
			{ /* Not enough room in the buffer - grow it. */
#ifdef YY_USES_REJECT
			YY_FATAL_ERROR(
"input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
#else

			/* 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. */
					yy_flex_realloc( (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->yy_buf_size -
						number_to_move - 1;
#endif
			}

		if ( num_to_read > YY_READ_BUF_SIZE )
			num_to_read = YY_READ_BUF_SIZE;

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

		yy_current_buffer->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;
			yyrestart( yyin );
			}

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

	else
		ret_val = EOB_ACT_CONTINUE_SCAN;

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

	yytext_ptr = &yy_current_buffer->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()
	{
	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 >= 298 )
				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 );
 */

#ifdef YY_USE_PROTOS
static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state )
#else
static yy_state_type yy_try_NUL_trans( yy_current_state )
yy_state_type yy_current_state;
#endif
	{
	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 >= 298 )
			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 == 297);

	return yy_is_jam ? 0 : yy_current_state;
	}


#ifndef YY_NO_UNPUT
#ifdef YY_USE_PROTOS
static void yyunput( int c, register char *yy_bp )
#else
static void yyunput( c, yy_bp )
int c;
register char *yy_bp;
#endif
	{
	register char *yy_cp = yy_c_buf_p;

	/* undo effects of setting up yytext */
	*yy_cp = yy_hold_char;

	if ( yy_cp < yy_current_buffer->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->yy_ch_buf[
					yy_current_buffer->yy_buf_size + 2];
		register char *source =
				&yy_current_buffer->yy_ch_buf[number_to_move];

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

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

		if ( yy_cp < yy_current_buffer->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;
	}
#endif	/* ifndef YY_NO_UNPUT */


#ifdef __cplusplus
static int yyinput()
#else
static int input()
#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->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. */
					yyrestart( yyin );

					/* fall through */

				case EOB_ACT_END_OF_FILE:
					{
					if ( 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 yytext */
	yy_hold_char = *++yy_c_buf_p;


	return c;
	}


#ifdef YY_USE_PROTOS
void yyrestart( FILE *input_file )
#else
void yyrestart( input_file )
FILE *input_file;
#endif
	{
	if ( ! yy_current_buffer )
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );

	yy_init_buffer( yy_current_buffer, input_file );
	yy_load_buffer_state();
	}


#ifdef YY_USE_PROTOS
void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
#else
void yy_switch_to_buffer( new_buffer )
YY_BUFFER_STATE new_buffer;
#endif
	{
	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->yy_buf_pos = yy_c_buf_p;
		yy_current_buffer->yy_n_chars = yy_n_chars;
		}

	yy_current_buffer = new_buffer;
	yy_load_buffer_state();

	/* 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.
	 */
	yy_did_buffer_switch_on_eof = 1;
	}


#ifdef YY_USE_PROTOS
void yy_load_buffer_state( void )
#else
void yy_load_buffer_state()
#endif
	{
	yy_n_chars = yy_current_buffer->yy_n_chars;
	yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos;
	yyin = yy_current_buffer->yy_input_file;
	yy_hold_char = *yy_c_buf_p;
	}


#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_create_buffer( FILE *file, int size )
#else
YY_BUFFER_STATE yy_create_buffer( file, size )
FILE *file;
int size;
#endif
	{
	YY_BUFFER_STATE b;

	b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
	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 *) yy_flex_alloc( b->yy_buf_size + 2 );
	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 );

	return b;
	}


#ifdef YY_USE_PROTOS
void yy_delete_buffer( YY_BUFFER_STATE b )
#else
void yy_delete_buffer( b )
YY_BUFFER_STATE b;
#endif
	{
	if ( ! b )
		return;

	if ( b == yy_current_buffer )
		yy_current_buffer = (YY_BUFFER_STATE) 0;

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

	yy_flex_free( (void *) b );
	}


#ifndef YY_ALWAYS_INTERACTIVE
#ifndef YY_NEVER_INTERACTIVE
extern int isatty YY_PROTO(( int ));
#endif
#endif

#ifdef YY_USE_PROTOS
void yy_init_buffer( YY_BUFFER_STATE b, FILE *file )
#else
void yy_init_buffer( b, file )
YY_BUFFER_STATE b;
FILE *file;
#endif


	{
	yy_flush_buffer( b );

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

#if YY_ALWAYS_INTERACTIVE
	b->yy_is_interactive = 1;
#else
#if YY_NEVER_INTERACTIVE
	b->yy_is_interactive = 0;
#else
	b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
#endif
#endif
	}


#ifdef YY_USE_PROTOS
void yy_flush_buffer( YY_BUFFER_STATE b )
#else
void yy_flush_buffer( b )
YY_BUFFER_STATE b;
#endif

	{
	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();
	}


#ifndef YY_NO_SCAN_BUFFER
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size )
#else
YY_BUFFER_STATE yy_scan_buffer( base, size )
char *base;
yy_size_t size;
#endif
	{
	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) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in 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;

	yy_switch_to_buffer( b );

	return b;
	}
#endif


#ifndef YY_NO_SCAN_STRING
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_string( yyconst char *yy_str )
#else
YY_BUFFER_STATE yy_scan_string( yy_str )
yyconst char *yy_str;
#endif
	{
	int len;
	for ( len = 0; yy_str[len]; ++len )
		;

	return yy_scan_bytes( yy_str, len );
	}
#endif


#ifndef YY_NO_SCAN_BYTES
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len )
#else
YY_BUFFER_STATE yy_scan_bytes( bytes, len )
yyconst char *bytes;
int len;
#endif
	{
	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 *) yy_flex_alloc( n );
	if ( ! buf )
		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );

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

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

	b = yy_scan_buffer( buf, n );
	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;
	}
#endif


#ifndef YY_NO_PUSH_STATE
#ifdef YY_USE_PROTOS
static void yy_push_state( int new_state )
#else
static void yy_push_state( new_state )
int new_state;
#endif
	{
	if ( yy_start_stack_ptr >= yy_start_stack_depth )
		{
		yy_size_t new_size;

		yy_start_stack_depth += YY_START_STACK_INCR;
		new_size = yy_start_stack_depth * sizeof( int );

		if ( ! yy_start_stack )
			yy_start_stack = (int *) yy_flex_alloc( new_size );

		else
			yy_start_stack = (int *) yy_flex_realloc(
					(void *) yy_start_stack, new_size );

		if ( ! yy_start_stack )
			YY_FATAL_ERROR(
			"out of memory expanding start-condition stack" );
		}

	yy_start_stack[yy_start_stack_ptr++] = YY_START;

	BEGIN(new_state);
	}
#endif


#ifndef YY_NO_POP_STATE
static void yy_pop_state()
	{
	if ( --yy_start_stack_ptr < 0 )
		YY_FATAL_ERROR( "start-condition stack underflow" );

	BEGIN(yy_start_stack[yy_start_stack_ptr]);
	}
#endif


#ifndef YY_NO_TOP_STATE
static int yy_top_state()
	{
	return yy_start_stack[yy_start_stack_ptr - 1];
	}
#endif

#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif

#ifdef YY_USE_PROTOS
static void yy_fatal_error( yyconst char msg[] )
#else
static void yy_fatal_error( msg )
char msg[];
#endif
	{
	(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 yytext. */ \
		yytext[yyleng] = yy_hold_char; \
		yy_c_buf_p = yytext + n; \
		yy_hold_char = *yy_c_buf_p; \
		*yy_c_buf_p = '\0'; \
		yyleng = n; \
		} \
	while ( 0 )


/* Internal utility routines. */

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

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

	return n;
	}
#endif


#ifdef YY_USE_PROTOS
static void *yy_flex_alloc( yy_size_t size )
#else
static void *yy_flex_alloc( size )
yy_size_t size;
#endif
	{
	return (void *) malloc( size );
	}

#ifdef YY_USE_PROTOS
static void *yy_flex_realloc( void *ptr, yy_size_t size )
#else
static void *yy_flex_realloc( ptr, size )
void *ptr;
yy_size_t size;
#endif
	{
	/* 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 );
	}

#ifdef YY_USE_PROTOS
static void yy_flex_free( void *ptr )
#else
static void yy_flex_free( ptr )
void *ptr;
#endif
	{
	free( ptr );
	}

#if YY_MAIN
int main()
	{
	yylex();
	return 0;
	}
#endif
#line 363 "scan.l"




/* This is the way to get multiple files input into lex. */

int
yywrap()
{
  if (!open_new_file ()) return (1);	/* EOF on standard in. */
  return (0);				/* We have more input. */
}