cwlex_yy.c

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

/* A lexical scanner generated by flex */
/* Copyright: (c) Julian Smart */
/* Licence:   wxWindows Licence */

/* scanner skeleton version:
 * $Header: /pack/cvsroots/wxwidgets/wxWidgets/contrib/src/deprecated/cwlex_yy.c,v 1.2 2005/05/04 18:57:49 JS Exp $
	Last change:  JS   13 Jul 97    6:17 pm
 */

#define FLEX_SCANNER

#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 <osfcn.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__

#ifdef __GNUC__
#include <stddef.h>
#else
#include <stdlib.h>
#endif	/* __GNUC__ */

#define YY_USE_PROTOS
#define YY_USE_CONST

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


#ifdef __TURBOC__
#define YY_USE_CONST
#endif


#ifndef YY_USE_CONST
#define const
#endif


#ifdef YY_USE_PROTOS
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
/* we can't get here if it's an ANSI C compiler, or a C++ compiler,
 * so it's got to be a K&R compiler, and therefore there's no standard
 * place from which to include these definitions
 */
/*
char *malloc();
int free();
*/

//int read();
#endif


/* amount of stuff to slurp up with each read */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* returned upon end-of-file */
#define YY_END_TOK 0

/* copy whatever the last rule matched to the standard output */

/* cast to (char *) is because for 8-bit chars, yytext is (unsigned char *) */
/* this used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite()
 */
#define ECHO (void) fwrite( (char *) yytext, yyleng, 1, yyout )

/* gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#define YY_INPUT(buf,result,max_size) \
	if ( (result = read( fileno(yyin), (char *) buf, max_size )) < 0 ) \
	    YY_FATAL_ERROR( "read() in flex scanner failed" );
#define YY_NULL 0

/* 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.
 */
#define yyterminate() return ( YY_NULL )

/* report a fatal error */

/* The funky do-while is used to turn this macro definition into
 * a single C statement (which needs a semi-colon terminator).
 * This avoids problems with code like:
 *
 * 	if ( something_happens )
 *		YY_FATAL_ERROR( "oops, the something happened" );
 *	else
 *		everything_okay();
 *
 * 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 YY_FATAL_ERROR() call.
 */

#define YY_FATAL_ERROR(msg) \
	do \
		{ \
		(void) fputs( msg, stderr ); \
		(void) putc( '\n', stderr ); \
		exit( 1 ); \
		} \
	while ( 0 )

/* default yywrap function - always treat EOF as an EOF */
int yywrap(void) { return 1; }


/* 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 *

/* 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 \
	do \
		{ \
		yy_init_buffer( yy_current_buffer, yyin ); \
		yy_load_buffer_state(); \
		} \
	while ( 0 )

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

/* code executed at the end of each rule */
#define YY_BREAK break;

#define YY_END_OF_BUFFER_CHAR 0

#ifndef YY_BUF_SIZE
#define YY_BUF_SIZE (YY_READ_BUF_SIZE * 2) /* size of default input buffer */
#endif

typedef struct yy_buffer_state *YY_BUFFER_STATE;

#define YY_CHAR unsigned char
# line 1 "lexer.l"
#define INITIAL 0
# line 9 "lexer.l"
/*
 * File:         lexer.l
 * Description:  Lexical analyser for PROLOGIO; can be used with
 *               either lex and flex.
 */
#include <string.h>

/* +++steve162e: added, otherwise, PROIO_input will be undefined (at least under LINUX)
             please check, if this is also TRUE under other UNIXes.
 */

#if defined(FLEX_SCANNER) && defined(_LINUX)
#define PROIO_input my_input
#endif
/* ---steve162e */

#include "wx/expr.h"
#ifdef wx_x
extern char *malloc();
#endif
#define Return(x) return x;

#if defined(VMS) && ( __VMS_VER < 70000000 )
#define strdup(s) (strcpy((char *)malloc(strlen(s)+1), s));
#endif

static size_t lex_buffer_length = 0;
static const char *lex_buffer = NULL;
static size_t lex_string_ptr = 0;
static int lex_read_from_string = 0;

static int my_input(void);
static int my_unput(char);

#ifdef FLEX_SCANNER
#undef YY_INPUT
# define YY_INPUT(buf,result,max_size) \
   if (lex_read_from_string) \
   {  int c = my_input(); result = (c == 0) ? YY_NULL : ((buf)[0]=(c), 1); } \
   else \
	if ( (result = read( fileno(yyin), (char *) buf, max_size )) < 0 ) \
	    YY_FATAL_ERROR( "read() in flex scanner failed" );
#else
# undef unput
# define unput(_c) my_unput(_c)
#endif

# line 58 "lexer.l"

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

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

/* 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_DO_BEFORE_ACTION; /* set up yytext again */ \
		} \
	while ( 0 )

#undef unput
#define unput(c) yyunput( c, yytext )


struct yy_buffer_state
    {
    FILE *yy_input_file;

    YY_CHAR *yy_ch_buf;		/* input buffer */
    YY_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;

    int yy_eof_status;		/* whether we've seen an EOF on this buffer */
#define EOF_NOT_SEEN 0
    /* "pending" happens when the EOF has been seen but there's still
     * some text process
     */
#define EOF_PENDING 1
#define EOF_DONE 2
    };

static YY_BUFFER_STATE yy_current_buffer;

/* 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 YY_CHAR yy_hold_char;

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



#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif

#ifndef YY_USER_INIT
#define YY_USER_INIT
#endif

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

YY_CHAR *yytext;
int yyleng;

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

#define YY_END_OF_BUFFER 18
typedef int yy_state_type;
static const short int yy_accept[34] =
    {   0,
        0,    0,   18,   16,   13,   14,   16,   16,    6,    7,
       16,    8,   12,   16,    1,   11,    3,    9,   10,    2,
        0,    5,    0,    0,    0,    4,    1,   15,    3,    5,
        0,    0,    0
    } ;

static const YY_CHAR 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,    1,    4,    1,    1,    1,    1,    5,    6,
        7,    8,    9,   10,    9,   11,   12,   13,   13,   13,
       13,   13,   13,   13,   13,   13,   13,    1,    1,    1,
       14,    1,    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,
       16,   17,   18,    1,   15,    1,   15,   15,   15,   15,

       19,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,   15,   15,   15,   15,   15,   15,   15,   15,
       15,   15,    1,   20,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    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 YY_CHAR yy_meta[21] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    2,    1,    2,    1,    3,    1,    2,    1
    } ;

static const short int yy_base[37] =
    {   0,
        0,    0,   48,   55,   55,   55,   17,   42,   55,   55,
       19,   55,   55,   23,   17,   55,    0,   55,   55,    0,
       18,   55,   19,   23,   21,   55,   12,   55,    0,   24,
       25,   29,   55,   49,   52,   22
    } ;

static const short int yy_def[37] =
    {   0,
       33,    1,   33,   33,   33,   33,   34,   35,   33,   33,
       33,   33,   33,   33,   33,   33,   36,   33,   33,   36,
       34,   33,   34,   34,   35,   33,   33,   33,   36,   34,
       34,   34,    0,   33,   33,   33
    } ;

static const short int yy_nxt[76] =
    {   0,
        4,    5,    6,    7,    8,    9,   10,    4,   11,   12,
       13,   14,   15,   16,   17,   18,    4,   19,   20,    4,
       22,   22,   30,   29,   27,   26,   22,   22,   30,   27,
       28,   27,   30,   23,   23,   23,   24,   24,   24,   31,
       23,   32,   24,   24,   24,   23,   26,   33,   24,   21,
       21,   21,   25,   25,    3,   33,   33,   33,   33,   33,
       33,   33,   33,   33,   33,   33,   33,   33,   33,   33,
       33,   33,   33,   33,   33
    } ;

static const short int yy_chk[76] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        7,   21,   23,   36,   27,   25,   24,   30,   31,   15,
       14,   11,   32,    7,   21,   23,    7,   21,   23,   24,
       30,   31,   24,   30,   31,   32,    8,    3,   32,   34,
       34,   34,   35,   35,   33,   33,   33,   33,   33,   33,
       33,   33,   33,   33,   33,   33,   33,   33,   33,   33,
       33,   33,   33,   33,   33
    } ;

static yy_state_type yy_last_accepting_state;
static YY_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

/* these variables are all declared out here so that section 3 code can
 * manipulate them
 */
/* points to current character in buffer */
static YY_CHAR *yy_c_buf_p = (YY_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 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 yyunput YY_PROTO(( YY_CHAR c, YY_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 ));

#define yy_new_buffer yy_create_buffer

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

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




    if ( yy_init )
	{
	YY_USER_INIT;

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

	if ( ! yyin )
	    yyin = stdin;

	if ( ! yyout )
	    yyout = stdout;

	if ( yy_current_buffer )
	    yy_init_buffer( yy_current_buffer, yyin );
	else
	    yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );

	yy_load_buffer_state();

	yy_init = 0;
	}

    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_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 = yy_def[yy_current_state];
		if ( yy_current_state >= 34 )
		    yy_c = yy_meta[yy_c];
		}
	    yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
	    ++yy_cp;
	    }
	while ( yy_current_state != 33 );
	yy_cp = yy_last_accepting_cpos;
	yy_current_state = yy_last_accepting_state;

yy_find_action:
	yy_act = yy_accept[yy_current_state];

	YY_DO_BEFORE_ACTION;
	YY_USER_ACTION;

do_action:	/* this label is used only to access EOF actions */


	switch ( yy_act )
	    {
	    case 0: /* must backtrack */
	    /* 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:
# line 60 "lexer.l"
{yylval.s = strdup(yytext); Return(INTEGER);}
	YY_BREAK
case 2:
# line 62 "lexer.l"
Return(EXP);
	YY_BREAK
case 3:
# line 64 "lexer.l"
{yylval.s = strdup(yytext); Return(WORD);}
	YY_BREAK
case 4:
# line 66 "lexer.l"
{int len = strlen(yytext);
                                   yytext[len-1] = 0;
                                   yylval.s = strdup(yytext+1); 
                                   Return(WORD);}
	YY_BREAK
case 5:
# line 71 "lexer.l"
{yylval.s = strdup(yytext); Return(STRING);}
	YY_BREAK
case 6:
# line 73 "lexer.l"
Return(OPEN);
	YY_BREAK
case 7:
# line 75 "lexer.l"
Return(CLOSE);
	YY_BREAK
case 8:
# line 77 "lexer.l"
Return(COMMA);
	YY_BREAK
case 9:
# line 79 "lexer.l"
Return(OPEN_SQUARE);
	YY_BREAK
case 10:
# line 81 "lexer.l"
Return(CLOSE_SQUARE);
	YY_BREAK
case 11:
# line 83 "lexer.l"
Return(EQUALS);
	YY_BREAK
case 12:
# line 85 "lexer.l"
Return(PERIOD);
	YY_BREAK
case 13:
# line 87 "lexer.l"
;
	YY_BREAK
case 14:
# line 89 "lexer.l"
;
	YY_BREAK
case 15:
# line 91 "lexer.l"
{       loop:
#ifdef __cplusplus
                          while (yyinput() != '*');
                          switch (yyinput())
#else
                          while (input() != '*');
                          switch (input())
#endif
                                  {
                                  case '/': break;
                                  case '*': unput('*');
                                  default: goto loop;
                                  }
                          }
	YY_BREAK
case 16:
# line 106 "lexer.l"
Return(ERROR);
	YY_BREAK
case 17:
# line 108 "lexer.l"
ECHO;
	YY_BREAK
case YY_STATE_EOF(INITIAL):
    yyterminate();