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📄 lex.yy.c

📁 一个用C++实现的C的Compiler。 代码风格良好。 原作者自己写了这个编译器
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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>


/* 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 66
#define YY_END_OF_BUFFER 67
static yyconst short int yy_accept[157] =
    {   0,
        0,    0,    2,    2,   67,   65,   64,   63,   53,   65,
       45,   24,   65,   32,   33,   43,   41,   34,   42,   35,
       44,   59,   59,   36,   46,   13,   47,   57,   39,   40,
       27,   57,   57,   57,   57,   57,   57,   57,   57,   57,
       57,   57,   37,   25,   38,   26,    2,    4,    3,   51,
        0,   61,    0,    0,    0,    0,   52,    0,    0,   30,
       31,    1,    6,   60,   59,    0,   28,   48,   50,   49,
       29,   57,   57,   57,   57,   57,   57,   57,   57,    7,
       57,   57,   57,   57,   57,   57,   57,   54,    2,    3,
        3,    5,    0,   61,    0,    0,    0,    0,    0,   62,

       62,    0,    6,    6,   60,   58,   57,   57,   57,   57,
       57,   57,    9,   15,   57,   57,   57,   57,   57,   57,
       23,    0,    0,    6,    6,    6,   20,   57,   14,   57,
        8,   57,   17,   57,   57,   55,   16,   57,    0,    0,
       11,   19,   56,   57,   57,   10,    0,    0,   12,   18,
        0,    0,   21,    0,   22,    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,    1,    1,    6,    7,    8,    9,
       10,   11,   12,   13,   14,   15,   16,   17,   18,   18,
       18,   18,   18,   18,   18,   18,   18,    1,   19,   20,
       21,   22,    1,    1,   23,   23,   23,   23,   23,   23,
       24,   24,   24,   24,   24,   24,   24,   24,   24,   24,
       24,   24,   24,   24,   24,   24,   24,   25,   24,   24,
       26,   27,   28,   29,   24,    1,   30,   31,   32,   33,

       34,   35,   36,   37,   38,   24,   39,   40,   41,   42,
       43,   24,   24,   44,   45,   46,   47,   48,   49,   50,
       24,   24,   51,   52,   53,   54,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    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[55] =
    {   0,
        1,    1,    2,    1,    1,    1,    1,    3,    1,    1,
        4,    1,    1,    1,    1,    1,    5,    5,    1,    1,
        1,    1,    5,    6,    6,    1,    1,    1,    1,    5,
        5,    5,    5,    5,    5,    6,    6,    6,    6,    6,
        6,    6,    6,    6,    6,    6,    6,    6,    6,    6,
        1,    1,    1,    1
    } ;

static yyconst short int yy_base[167] =
    {   0,
        0,    0,   52,   53,  231,  232,  232,  232,  209,   52,
       28,  222,  201,  232,  232,  232,  215,  232,  212,  232,
       49,   44,   53,  232,   46,  204,   52,    0,  232,  232,
      232,   32,   41,  184,   50,   46,  176,  188,  175,  176,
      176,  181,  232,  165,  232,  232,    0,  232,   71,  232,
       78,  232,   80,  171,  181,  170,  232,  205,   78,  232,
      232,  232,  185,   72,   80,    0,  232,  232,  232,  232,
      232,    0,  168,  176,  179,  166,  162,  166,  161,    0,
      158,  163,  156,  157,  153,  161,  160,  232,    0,   80,
       88,  232,   87,   96,   97,   98,  156,  166,  157,  232,

      186,  185,  165,   73,   91,    0,  151,  160,  141,  134,
      139,  122,    0,    0,  123,  114,  107,  119,  114,   98,
      232,  104,   90,  108,   79,  107,    0,   94,    0,   86,
        0,   97,    0,   86,   97,    0,    0,   94,   83,   92,
        0,    0,    0,   77,   72,    0,   83,   72,    0,    0,
       77,   78,  232,   75,  232,  232,  139,  145,  151,  153,
      159,  165,  171,  177,  105,  183
    } ;

static yyconst short int yy_def[167] =
    {   0,
      156,    1,  157,  157,  156,  156,  156,  156,  156,  158,
      156,  156,  159,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  160,  156,  156,
      156,  160,  160,  160,  160,  160,  160,  160,  160,  160,
      160,  160,  156,  156,  156,  156,  161,  156,  162,  156,
      158,  156,  163,  156,  156,  156,  156,  156,  159,  156,
      156,  156,  164,  156,  156,  165,  156,  156,  156,  156,
      156,  160,  160,  160,  160,  160,  160,  160,  160,  160,
      160,  160,  160,  160,  160,  160,  160,  156,  161,  162,
      162,  156,  158,  158,  163,  158,  156,  156,  156,  156,

      156,  156,  164,  166,  156,  165,  160,  160,  160,  160,
      160,  160,  160,  160,  160,  160,  160,  160,  160,  160,
      156,  156,  156,  164,  166,  164,  160,  160,  160,  160,
      160,  160,  160,  160,  160,  160,  160,  160,  156,  156,
      160,  160,  160,  160,  160,  160,  156,  156,  160,  160,
      156,  156,  156,  156,  156,    0,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156
    } ;

static yyconst short int yy_nxt[287] =
    {   0,
        6,    7,    8,    9,   10,   11,   12,   13,   14,   15,
       16,   17,   18,   19,   20,   21,   22,   23,   24,   25,
       26,   27,   28,   28,   28,   29,    6,   30,   31,   28,
       32,   33,   28,   34,   35,   28,   28,   36,   28,   28,
       28,   37,   28,   38,   39,   40,   28,   41,   42,   28,
       43,   44,   45,   46,   48,   48,   52,   54,   64,   62,
       65,   65,   49,   49,   63,   67,   68,   64,   66,   65,
       65,   55,   70,   71,   73,   74,   56,   75,   53,   78,
       80,   91,   52,   76,   94,  101,   92,   81,  105,  105,
      156,   52,   79,   66,   64,  156,   65,   65,   91,  125,

       52,   94,   52,   92,   53,  125,   95,  105,  105,  106,
      155,  154,  153,   53,  126,  152,  151,  150,  149,  102,
      126,   96,   53,   95,   53,  148,  147,  146,  145,  144,
      143,  142,  141,  104,  104,  140,  139,  138,   96,   47,
       47,   47,   47,   47,   47,   51,  137,   51,   51,   51,
       51,   58,  136,  135,   58,   58,   58,   72,   72,   89,
      134,   89,  133,   89,   89,   90,  132,   90,   90,   90,
       90,   93,  131,   93,   93,   93,   93,  103,  130,  103,
      103,  103,  103,  124,  129,  124,  124,  124,  124,  128,
      127,  104,  100,  100,  123,  122,  121,  120,  119,  118,

      117,  116,  115,  114,  113,  112,  111,  110,  109,  108,
      107,  104,  100,   99,   98,   97,   88,   87,   86,   85,
       84,   83,   82,   77,   69,   61,   60,   59,   57,   50,
      156,    5,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156
    } ;

static yyconst short int yy_chk[287] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    3,    4,   10,   11,   22,   21,
       22,   22,    3,    4,   21,   25,   25,   23,   22,   23,
       23,   11,   27,   27,   32,   32,   11,   33,   10,   35,
       36,   49,   51,   33,   53,   59,   49,   36,   64,   64,
       90,   93,   35,   22,   65,   90,   65,   65,   91,  104,

       94,   95,   96,   91,   51,  125,   53,  105,  105,  165,
      154,  152,  151,   93,  104,  148,  147,  145,  144,   59,
      125,   53,   94,   95,   96,  140,  139,  138,  135,  134,
      132,  130,  128,  126,  124,  123,  122,  120,   95,  157,
      157,  157,  157,  157,  157,  158,  119,  158,  158,  158,
      158,  159,  118,  117,  159,  159,  159,  160,  160,  161,
      116,  161,  115,  161,  161,  162,  112,  162,  162,  162,
      162,  163,  111,  163,  163,  163,  163,  164,  110,  164,
      164,  164,  164,  166,  109,  166,  166,  166,  166,  108,
      107,  103,  102,  101,   99,   98,   97,   87,   86,   85,

       84,   83,   82,   81,   79,   78,   77,   76,   75,   74,
       73,   63,   58,   56,   55,   54,   44,   42,   41,   40,
       39,   38,   37,   34,   26,   19,   17,   13,   12,    9,
        5,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156,  156,  156,  156,  156,
      156,  156,  156,  156,  156,  156
    } ;

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 "toTAC.lex"
#define INITIAL 0
#define comment 1

#line 21 "toTAC.lex"
#include <cstdio>
#include "IDHash.cpp"

#include "toTAC.tab.c"

using namespace std;

int PROGRAM_LineNumber = 1;

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