lex.yy.c

一个编译器修改的例子

#line 3 "lex.yy.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 5
#define YY_FLEX_SUBMINOR_VERSION 35
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif

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

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

/* end standard C headers. */

/* flex integer type definitions */

#ifndef FLEXINT_H
#define FLEXINT_H

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

#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L

/* 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;
#endif /* ! C99 */

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

#endif /* ! FLEXINT_H */

#ifdef __cplusplus

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

#else	/* ! __cplusplus */

/* C99 requires __STDC__ to be defined as 1. */
#if defined (__STDC__)

#define YY_USE_CONST

#endif	/* defined (__STDC__) */
#endif	/* ! __cplusplus */

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

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

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

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

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

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

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

#define YY_END_OF_BUFFER_CHAR 0

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

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

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

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

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

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

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

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

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

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

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

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

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

	int yy_buffer_status;

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

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

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

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

/* yy_hold_char holds the character lost when 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 = 0;		/* 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 (FILE *input_file  );
void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer  );
YY_BUFFER_STATE yy_create_buffer (FILE *file,int size  );
void yy_delete_buffer (YY_BUFFER_STATE b  );
void yy_flush_buffer (YY_BUFFER_STATE b  );
void yypush_buffer_state (YY_BUFFER_STATE new_buffer  );
void yypop_buffer_state (void );

static void yyensure_buffer_stack (void );
static void yy_load_buffer_state (void );
static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file  );

#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER )

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

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

#define yy_new_buffer yy_create_buffer

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

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

#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

/* Begin user sect3 */

typedef unsigned char YY_CHAR;

FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;

typedef int yy_state_type;

extern int yylineno;

int yylineno = 1;

extern char *yytext;
#define yytext_ptr yytext

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

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

#define YY_NUM_RULES 58
#define YY_END_OF_BUFFER 59
/* This struct is not used in this scanner,
   but its presence is necessary. */
struct yy_trans_info
	{
	flex_int32_t yy_verify;
	flex_int32_t yy_nxt;
	};
static yyconst flex_int16_t yy_accept[185] =
    {   0,
        0,    0,    0,    0,    0,    0,   59,   57,    1,    2,
       52,   56,   50,   57,   57,   54,   54,   57,   56,   56,
       53,   53,   53,   53,   53,   53,   53,   53,   53,   53,
       53,   53,   53,   53,   53,   53,   53,   53,    7,    6,
        7,    7,   10,    9,   58,    1,   52,   51,    0,   50,
       49,    0,    3,   55,   55,   54,    0,    0,    0,   54,
       11,   14,   13,   12,   53,   53,   53,   53,   53,   19,
       53,   53,   22,   53,   53,   53,   53,   53,   28,   53,
       30,   53,   53,   53,   34,   35,   53,   53,   53,   53,
       53,   43,   53,   53,   53,   53,   53,    4,    5,   10,

        9,    0,    0,   55,   54,   15,   53,   53,   53,   53,
       53,   53,   24,   53,   26,   53,   29,   31,   32,   53,
       53,   53,   53,   53,   53,   53,   53,   53,   53,   53,
       46,   53,   53,    0,   55,   53,   53,   18,   20,   53,
       23,   53,   53,   33,   53,   37,   53,   53,   53,   40,
       53,   42,   44,   53,   53,   53,   16,   17,   53,   25,
       53,   53,   53,   53,   53,   53,   45,   47,   53,   21,
       53,   53,   48,   38,   39,   41,   53,   53,   53,    8,
       27,   53,   36,    0
    } ;

static yyconst flex_int32_t yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        1,    1,    4,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    1,    5,    1,    1,    6,    1,    7,    8,
        9,   10,   11,    1,   11,   12,    6,   13,   14,   14,
       14,   14,   14,   14,   14,   15,   15,   16,    1,   17,
       18,   19,    1,    1,   20,   20,   20,   20,   21,   20,
       22,   22,   22,   22,   22,   22,   22,   22,   22,   22,
       22,   22,   22,   22,   22,   22,   22,   23,   22,   22,
        6,   24,    1,    1,   22,    1,   25,   26,   27,   28,

       29,   30,   31,   32,   33,   22,   22,   34,   22,   35,
       36,   37,   22,   38,   39,   40,   41,   42,   43,   23,
       44,   45,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

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

static yyconst flex_int32_t yy_meta[46] =
    {   0,
        1,    2,    3,    2,    1,    1,    1,    1,    1,    1,
        1,    1,    4,    4,    4,    1,    1,    1,    1,    4,
        4,    5,    5,    1,    4,    4,    4,    4,    4,    4,
        5,    5,    5,    5,    5,    5,    5,    5,    5,    5,
        5,    5,    5,    5,    5
    } ;

static yyconst flex_int16_t yy_base[192] =
    {   0,
        0,  244,   43,   44,   46,   53,  276,  278,   56,  278,
       54,  278,   55,  265,   50,   68,   55,  256,   53,  255,
        0,   39,   56,  240,   37,   52,   63,   63,   65,   65,
      233,  241,   72,   75,  234,  243,  235,   79,  278,  278,
      256,  256,    0,  262,  278,  106,   91,  278,    0,  109,
      278,    0,  278,  106,  109,  116,  126,  135,    0,  139,
      278,  278,  278,  278,    0,  235,  224,  230,  224,    0,
      234,  224,    0,  218,  228,  221,  216,  218,    0,  212,
        0,  208,  210,  215,    0,    0,  212,  132,  202,  208,
      216,    0,  203,  203,  204,  208,  116,  278,  278,    0,

      238,  150,  160,  163,    0,    0,  214,  205,  203,  198,
      206,  205,    0,  194,    0,  205,    0,    0,    0,  197,
      203,  195,  192,  198,  185,  196,  191,  188,  193,  188,
        0,  186,  185,  166,  169,  174,  182,    0,    0,  176,
        0,  186,  174,    0,  184,    0,  174,  184,  170,    0,
      167,    0,    0,  163,  142,  129,    0,    0,  138,    0,
      133,  134,  130,  104,  107,  105,    0,    0,  106,    0,
       96,   85,    0,    0,    0,    0,   96,   82,   52,    0,
        0,   46,    0,  278,  184,  189,  194,  199,  201,  206,
       57

    } ;

static yyconst flex_int16_t yy_def[192] =
    {   0,
      184,    1,  185,  185,  186,  186,  184,  184,  184,  184,
      187,  184,  188,  184,  184,  184,  184,  184,  184,  184,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  184,  184,
      184,  184,  190,  184,  184,  184,  187,  184,  187,  188,
      184,  188,  184,  184,  184,  184,  184,  184,  191,  184,
      184,  184,  184,  184,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  184,  184,  190,

      184,  184,  184,  184,  191,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  184,  184,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,  189,  189,  189,  189,  189,  189,  189,
      189,  189,  189,    0,  184,  184,  184,  184,  184,  184,
      184

    } ;

static yyconst flex_int16_t yy_nxt[324] =
    {   0,
        8,    9,   10,    9,   11,   12,   13,   14,    8,   12,
       12,   15,   16,   17,   17,   18,   19,   12,   20,   21,
       21,   21,   21,    8,   22,   23,   24,   25,   26,   27,
       21,   21,   28,   21,   29,   30,   31,   32,   33,   34,
       35,   36,   37,   21,   21,   40,   40,   44,   45,   45,
       41,   41,   42,   42,   44,   45,   45,   46,   48,   46,
      105,   51,   54,   54,   54,   72,   55,   60,   60,   60,
       62,   63,   73,   66,  183,   58,   67,   49,   52,   55,
       56,   56,   57,   58,   68,   74,   75,   76,   58,  182,
       59,   69,   79,   82,   85,   48,   58,   80,   77,   70,

       83,   81,   86,   78,   89,   84,   91,   46,   79,   46,
       92,   90,   93,   97,   49,   51,  181,   81,   54,   54,
       54,   54,   54,   54,  180,  179,  102,   55,   56,   56,
       57,  178,   52,  177,  102,  176,   58,   55,   57,   57,
       57,  175,  133,  174,   58,  103,   58,  104,  104,  104,
       55,   60,   60,   60,   58,  117,  122,  173,  123,   58,
      134,  172,  135,  135,  135,  171,  170,   58,  124,  169,
      168,  125,  104,  104,  104,  104,  104,  104,  135,  135,
      135,  135,  135,  135,   39,   39,   39,   39,   39,   43,
       43,   43,   43,   43,   47,   47,  167,   47,   47,   50,

       50,  166,   50,   50,   65,   65,  100,  165,  164,  100,
      100,  163,  162,  161,  160,  159,  158,  157,  156,  155,
      154,  153,  152,  151,  150,  149,  148,  147,  146,  145,
      144,  143,  142,  141,  140,  139,  138,  137,  136,  101,
      132,  131,  130,  129,  128,  127,  126,  121,  120,  119,
      118,  117,  116,  115,  114,  113,  112,  111,  110,  109,
      108,  107,  106,  101,   99,   98,   96,   95,   94,   88,
       87,   71,   64,   61,   53,  184,   38,    7,  184,  184,
      184,  184,  184,  184,  184,  184,  184,  184,  184,  184,
      184,  184,  184,  184,  184,  184,  184,  184,  184,  184,

      184,  184,  184,  184,  184,  184,  184,  184,  184,  184,
      184,  184,  184,  184,  184,  184,  184,  184,  184,  184,
      184,  184,  184
    } ;

static yyconst flex_int16_t yy_chk[324] =
    {   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,    3,    4,    5,    5,    5,
        3,    4,    3,    4,    6,    6,    6,    9,   11,    9,
      191,   13,   15,   15,   15,   25,   17,   17,   17,   17,
       19,   19,   25,   22,  182,   17,   22,   11,   13,   16,
       16,   16,   16,   17,   23,   26,   26,   27,   16,  179,
       16,   23,   28,   29,   30,   47,   16,   28,   27,   23,

       29,   28,   30,   27,   33,   29,   34,   46,   38,   46,
       34,   33,   34,   38,   47,   50,  178,   38,   54,   54,
       54,   55,   55,   55,  177,  172,   54,   56,   56,   56,
       56,  171,   50,  169,   54,  166,   56,   57,   57,   57,
       57,  165,   97,  164,   56,   58,   57,   58,   58,   58,
       60,   60,   60,   60,   57,   97,   88,  163,   88,   60,
      102,  162,  102,  102,  102,  161,  159,   60,   88,  156,
      155,   88,  103,  103,  103,  104,  104,  104,  134,  134,
      134,  135,  135,  135,  185,  185,  185,  185,  185,  186,
      186,  186,  186,  186,  187,  187,  154,  187,  187,  188,

      188,  151,  188,  188,  189,  189,  190,  149,  148,  190,
      190,  147,  145,  143,  142,  140,  137,  136,  133,  132,
      130,  129,  128,  127,  126,  125,  124,  123,  122,  121,
      120,  116,  114,  112,  111,  110,  109,  108,  107,  101,
       96,   95,   94,   93,   91,   90,   89,   87,   84,   83,
       82,   80,   78,   77,   76,   75,   74,   72,   71,   69,
       68,   67,   66,   44,   42,   41,   37,   36,   35,   32,
       31,   24,   20,   18,   14,    7,    2,  184,  184,  184,
      184,  184,  184,  184,  184,  184,  184,  184,  184,  184,
      184,  184,  184,  184,  184,  184,  184,  184,  184,  184,

      184,  184,  184,  184,  184,  184,  184,  184,  184,  184,
      184,  184,  184,  184,  184,  184,  184,  184,  184,  184,
      184,  184,  184
    } ;