?? scan.cpp
字號:
/* A lexical scanner generated by flex */
#define FLEX_SCANNER
#ifdef _WIN32
#include <io.h>
#else
#include <unistd.h>
#endif
#include <stdlib.h>
#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>
/* Use prototypes in function declarations. */
#define YY_USE_PROTOS
/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST
#else /* ! __cplusplus */
#ifdef __STDC__
#define YY_USE_PROTOS
#define YY_USE_CONST
#endif /* __STDC__ */
#endif /* ! __cplusplus */
#ifdef __TURBOC__
#define YY_USE_CONST
#endif
#ifndef YY_USE_CONST
#ifndef const
#define const
#endif
#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.
*/
#define YY_START ((yy_start - 1) / 2)
/* 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". Now included
* only for backward compatibility with previous versions of flex.
*/
#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;
#ifdef __cplusplus
extern "C" {
#endif
extern int yywrap YY_PROTO(( void ));
#ifdef __cplusplus
}
#endif
#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_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 )
struct yy_buffer_state
{
FILE *yy_input_file;
char *yy_ch_buf; /* input buffer */
char *yy_buf_pos; /* current position in input buffer */
/* Size of input buffer in bytes, not including room for EOB
* characters.
*/
int yy_buf_size;
/* Number of characters read into yy_ch_buf, not including EOB
* characters.
*/
int yy_n_chars;
/* Whether 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 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;
static void yyunput YY_PROTO(( int c, char *buf_ptr ));
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 ));
static int yy_start_stack_ptr = 0;
static int yy_start_stack_depth = 0;
static int *yy_start_stack = 0;
static void yy_push_state YY_PROTO(( int new_state ));
static void yy_pop_state YY_PROTO(( void ));
static int yy_top_state YY_PROTO(( void ));
static void *yy_flex_alloc YY_PROTO(( unsigned int ));
static void *yy_flex_realloc YY_PROTO(( void *, unsigned int ));
static void yy_flex_free YY_PROTO(( void * ));
#define yy_new_buffer yy_create_buffer
#define INITIAL 0
typedef unsigned char YY_CHAR;
typedef int yy_state_type;
FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
extern char *yytext;
#define yytext_ptr yytext
#ifndef yytext_ptr
static void yy_flex_strncpy YY_PROTO(( char *, const char *, int ));
#endif
#ifdef __cplusplus
static int yyinput YY_PROTO(( void ));
#else
static int input YY_PROTO(( void ));
#endif
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(( const 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 = yy_cp - yy_bp; \
yy_hold_char = *yy_cp; \
*yy_cp = '\0'; \
yy_c_buf_p = yy_cp;
#define YY_END_OF_BUFFER 34
static const short int yy_accept[94] =
{ 0,
0, 0, 34, 32, 1, 31, 31, 32, 2, 5,
6, 7, 32, 4, 8, 10, 9, 30, 30, 30,
30, 30, 30, 30, 30, 30, 30, 30, 30, 1,
0, 3, 2, 4, 12, 11, 13, 30, 30, 30,
30, 30, 30, 30, 30, 30, 30, 30, 30, 26,
30, 30, 30, 25, 30, 30, 30, 30, 30, 30,
30, 30, 30, 27, 30, 30, 30, 30, 30, 30,
30, 30, 17, 22, 24, 23, 30, 15, 29, 30,
30, 16, 30, 21, 30, 30, 30, 28, 14, 19,
18, 20, 0
} ;
static const int 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, 6, 1, 1, 1, 1, 7,
8, 1, 1, 9, 10, 1, 1, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 1, 1, 12,
13, 14, 1, 1, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
1, 1, 1, 1, 1, 1, 16, 17, 18, 19,
20, 21, 22, 23, 24, 15, 15, 25, 26, 27,
28, 29, 30, 31, 32, 33, 34, 15, 35, 15,
15, 15, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1
} ;
static const int yy_meta[36] =
{ 0,
1, 1, 2, 1, 1, 1, 1, 1, 1, 1,
3, 1, 1, 1, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3
} ;
static const short int yy_base[97] =
{ 0,
0, 0, 108, 109, 105, 109, 109, 33, 0, 109,
109, 109, 95, 94, 26, 109, 91, 0, 76, 12,
21, 71, 81, 73, 71, 13, 64, 77, 73, 93,
42, 109, 0, 83, 109, 109, 109, 0, 74, 64,
71, 29, 62, 63, 60, 62, 54, 52, 64, 0,
59, 57, 61, 0, 48, 63, 44, 57, 47, 46,
48, 44, 52, 0, 44, 37, 49, 37, 47, 33,
43, 31, 0, 0, 0, 0, 32, 0, 0, 44,
40, 0, 33, 0, 31, 17, 16, 0, 0, 0,
0, 0, 109, 55, 58, 45
} ;
static const short int yy_def[97] =
{ 0,
93, 1, 93, 93, 93, 93, 93, 94, 95, 93,
93, 93, 93, 93, 93, 93, 93, 96, 96, 96,
96, 96, 96, 96, 96, 96, 96, 96, 96, 93,
94, 93, 95, 93, 93, 93, 93, 96, 96, 96,
96, 96, 96, 96, 96, 96, 96, 96, 96, 96,
96, 96, 96, 96, 96, 96, 96, 96, 96, 96,
96, 96, 96, 96, 96, 96, 96, 96, 96, 96,
96, 96, 96, 96, 96, 96, 96, 96, 96, 96,
96, 96, 96, 96, 96, 96, 96, 96, 96, 96,
96, 96, 0, 93, 93, 93
} ;
static const short int yy_nxt[145] =
{ 0,
4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 17, 18, 19, 18, 20, 21, 18,
22, 18, 23, 24, 18, 18, 25, 26, 18, 27,
18, 28, 18, 18, 29, 32, 40, 32, 35, 36,
42, 49, 41, 50, 32, 57, 32, 38, 92, 91,
90, 43, 89, 58, 44, 31, 31, 31, 33, 88,
33, 87, 86, 85, 84, 83, 82, 81, 80, 79,
78, 77, 76, 75, 74, 73, 72, 71, 70, 69,
68, 67, 66, 65, 64, 63, 62, 61, 60, 59,
56, 55, 54, 34, 30, 53, 52, 51, 48, 47,
46, 45, 39, 37, 34, 34, 30, 93, 3, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93
} ;
static const short int yy_chk[145] =
{ 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, 8, 20, 8, 15, 15,
21, 26, 20, 26, 31, 42, 31, 96, 87, 86,
85, 21, 83, 42, 21, 94, 94, 94, 95, 81,
95, 80, 77, 72, 71, 70, 69, 68, 67, 66,
65, 63, 62, 61, 60, 59, 58, 57, 56, 55,
53, 52, 51, 49, 48, 47, 46, 45, 44, 43,
41, 40, 39, 34, 30, 29, 28, 27, 25, 24,
23, 22, 19, 17, 14, 13, 5, 3, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93
} ;
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
char *yytext;
# line 1 "scan.l"
# line 2 "scan.l"
#include <iostream.h>
#include "BT.h"
#include "gram.tab.h"
/* Macros after this point can all be overridden by user definitions in
* section 1.
*/
#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 = getc( yyin ); \
result = c == EOF ? 0 : 1; \
buf[0] = (char) c; \
} \
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
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -