lexer.c

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/* 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>
#include <errno.h>

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


#ifdef __cplusplus

#include <stdlib.h>
#ifndef _WIN32
#include <unistd.h>
#endif

/* 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 203
#define YY_END_OF_BUFFER 204
static yyconst short int yy_accept[572] =
    {   0,
        0,    0,    0,    0,    0,    0,  174,  174,    0,    0,
        0,    0,   46,   46,  204,  202,  200,  201,  201,   88,
        3,  129,   82,   92,    2,  114,  115,   80,   78,  125,
       79,  120,   81,  152,  152,  123,  124,  104,  111,  107,
      122,  128,  150,  150,  116,  117,   94,  150,  127,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  118,   93,  119,   91,  200,  202,
      203,  149,  148,  145,  105,  108,  203,  174,  175,  174,
      181,  203,  203,  203,  187,  198,  203,  173,  160,  159,
      203,   46,   45,   47,  200,  110,   87,   89,   96,   85,

      112,   83,  113,   84,  121,    0,  156,    1,    0,   86,
      155,  151,  152,    0,  152,  152,    0,   99,  106,  103,
      109,  100,  150,    3,    2,   98,  150,  150,  150,  150,
      150,  150,  150,  150,   13,  150,  150,  150,  150,  150,
      150,   21,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,   97,   90,   95,  200,    0,    0,  130,
        0,    0,    0,    0,    0,    0,    0,  149,  146,  147,
      174,  175,  181,  182,  181,  183,  176,  179,  180,  178,
      177,    0,  197,    0,    0,  197,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,  173,    0,  158,  172,

      171,  161,  163,  170,  167,  168,  164,  166,  165,  169,
      172,   46,   45,  126,    0,  156,    0,    4,  154,    0,
      155,  151,  151,    0,  157,  152,  152,  153,  101,  102,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,   19,  150,  150,   26,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,    0,  131,    0,    0,    0,    0,    0,    0,
      137,    0,    0,    0,    0,  199,  196,  195,  184,    0,
        0,  186,  194,  191,  192,  188,  190,  189,  193,    0,

      161,  163,  162,    0,  156,    0,    5,    0,  154,    0,
      155,  151,  151,  157,  153,  153,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,    6,  150,    8,    9,  150,  150,  150,
      150,   15,   16,  150,  150,   20,  150,   27,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,   39,
      150,  150,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,  184,    0,  186,  185,  161,    0,
      154,  153,  153,  150,   67,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,

      150,  150,    7,   10,  150,  150,  150,  150,   18,  150,
      150,  150,   30,  150,  150,  150,  150,  150,  150,  150,
       37,  150,  150,   41,    0,  141,  140,    0,    0,    0,
        0,    0,    0,  134,    0,    0,  150,  150,  150,  150,
      150,  150,  150,  150,   69,  150,  150,  150,  150,   22,
      150,  150,  150,   71,  150,  150,  150,  150,  150,  150,
       14,   17,   57,  150,   29,   31,   32,   33,   34,   35,
      150,   54,  150,  150,    0,  142,  143,  136,  138,    0,
        0,    0,  144,  150,   68,  150,   62,  150,   48,  150,
      150,  150,  150,   23,   24,   25,  150,  150,  150,  150,

      150,  150,  150,   64,  150,   12,  150,   36,  150,  150,
      132,  139,    0,  135,  150,  150,  150,  150,  150,  150,
       70,   58,  150,  150,   60,   72,   50,   55,  150,   11,
       28,   38,   40,  133,   65,  150,   73,   49,  150,  150,
      150,  150,   77,  150,  150,  150,  150,  150,  150,  150,
       44,  150,   59,   75,   61,   51,   56,   52,   66,   42,
       74,  150,  150,  150,  150,  150,   76,   53,   43,   63,
        0
    } ;

static yyconst int yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    2,    3,    4,
        3,    3,    5,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    3,    6,    7,    8,    9,   10,   11,   12,   13,
       14,   15,   16,   17,   18,   19,   20,   21,   22,   23,
       24,   25,   26,   27,   26,   28,   29,   30,   31,   32,
       33,   34,   35,   36,   37,   37,   37,   37,   38,   39,
       40,   40,   40,   40,   40,   41,   40,   40,   40,   40,
       40,   40,   40,   40,   42,   40,   40,   43,   40,   40,
       44,   45,   46,   47,   48,   49,   50,   51,   52,   53,

       54,   55,   56,   57,   58,   40,   59,   60,   61,   62,
       63,   64,   40,   65,   66,   67,   68,   69,   70,   71,
       72,   73,   74,   75,   76,   77,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    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[78] =
    {   0,
        1,    1,    1,    2,    1,    1,    3,    1,    1,    1,
        1,    4,    5,    5,    6,    1,    1,    1,    1,    6,
        7,    7,    7,    7,    7,    7,    7,    7,    7,    1,
        1,    1,    1,    1,    1,    1,    8,    9,    7,   10,
       11,   10,   10,    1,   12,    1,    1,   10,    1,    8,
        8,    8,    8,    9,    7,   10,   10,   10,   10,   11,
       10,   10,   10,   10,   10,   10,   10,   10,   10,   10,
       10,   10,   10,    1,    1,    1,    1
    } ;

static yyconst short int yy_base[602] =
    {   0,
        0,   75,    0,    0,   76,   77,   82,   84,   78,   88,
       87,   89,   92,   99, 1144, 1145, 1140, 1145, 1145, 1109,
     1145, 1145, 1108,   68, 1145, 1145, 1145, 1107,   82, 1145,
       85,  116,  116,  131,  184, 1145, 1145,   84, 1106,   91,
     1145, 1145,    0,  139, 1145, 1145, 1105, 1089, 1145,   60,
     1071,  113,  108,  104,  105, 1072,   52, 1071, 1079,  120,
     1060, 1069, 1067, 1072, 1145,  114, 1145, 1095,  176,  250,
     1145,    0, 1145, 1119,    0,    0, 1122, 1121, 1145, 1120,
      177,  178, 1119, 1110, 1109, 1108,  315,    0, 1145,  212,
      383,    0,    0, 1145, 1116, 1145, 1145, 1145, 1145, 1145,

     1145, 1145, 1145, 1145, 1145, 1099,  182, 1145, 1102, 1145,
      191,  198,    0,  264,  156,  107,    0, 1083, 1145, 1145,
     1145, 1082,    0, 1145, 1145, 1145,  295, 1056, 1046, 1058,
     1045, 1060, 1047, 1053, 1039, 1040, 1037, 1037, 1040, 1037,
     1034,    0,  128, 1038,  127, 1036,  145,  178, 1040, 1033,
      138,  173, 1038, 1145, 1145, 1145,  247,    0,    0, 1145,
      367, 1041,  197,  194, 1036, 1028, 1030,    0,    0, 1145,