// $Header: /home/daffy/u0/vern/flex/RCS/FlexLexer.h,v 1.19 96/05/25 20:43:02 vern Exp $
// FlexLexer.h -- define interfaces for lexical analyzer classes generated
// by flex
// Copyright (c) 1993 The Regents of the University of California.
// All rights reserved.
//
// This code is derived from software contributed to Berkeley by
// Kent Williams and Tom Epperly.
//
// Redistribution and use in source and binary forms with or without
// modification are permitted provided that: (1) source distributions retain
// this entire copyright notice and comment, and (2) distributions including
// binaries display the following acknowledgement: ``This product includes
// software developed by the University of California, Berkeley and its
// contributors'' in the documentation or other materials provided with the
// distribution and in all advertising materials mentioning features or use
// of this software. Neither the name of the University nor the names of
// its contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// This file defines FlexLexer, an abstract class which specifies the
// external interface provided to flex C++ lexer objects, and yyFlexLexer,
// which defines a particular lexer class.
//
// If you want to create multiple lexer classes, you use the -P flag
// to rename each yyFlexLexer to some other xxFlexLexer. You then
// include <FlexLexer.h> in your other sources once per lexer class:
//
// #undef yyFlexLexer
// #define yyFlexLexer xxFlexLexer
// #include <FlexLexer.h>
//
// #undef yyFlexLexer
// #define yyFlexLexer zzFlexLexer
// #include <FlexLexer.h>
// ...
#ifndef __FLEX_LEXER_H
// Never included before - need to define base class.
#define __FLEX_LEXER_H
#include <iostream.h>
extern "C++" {
struct yy_buffer_state;
typedef int yy_state_type;
class FlexLexer {
public:
virtual ~FlexLexer() { }
const char* YYText() { return yytext; }
int YYLeng() { return yyleng; }
virtual void
yy_switch_to_buffer( struct yy_buffer_state* new_buffer ) = 0;
virtual struct yy_buffer_state*
yy_create_buffer( istream* s, int size ) = 0;
virtual void yy_delete_buffer( struct yy_buffer_state* b ) = 0;
virtual void yyrestart( istream* s ) = 0;
virtual int yylex() = 0;
// Call yylex with new input/output sources.
int yylex( istream* new_in, ostream* new_out = 0 )
{
switch_streams( new_in, new_out );
return yylex();
}
// Switch to new input/output streams. A nil stream pointer
// indicates "keep the current one".
virtual void switch_streams( istream* new_in = 0,
ostream* new_out = 0 ) = 0;
int lineno() const { return yylineno; }
int debug() const { return yy_flex_debug; }
void set_debug( int flag ) { yy_flex_debug = flag; }
protected:
char* yytext;
int yyleng;
int yylineno; // only maintained if you use %option yylineno
int yy_flex_debug; // only has effect with -d or "%option debug"
};
}
#endif
#if defined(yyFlexLexer) || ! defined(yyFlexLexerOnce)
// Either this is the first time through (yyFlexLexerOnce not defined),
// or this is a repeated include to define a different flavor of
// yyFlexLexer, as discussed in the flex man page.
#define yyFlexLexerOnce
class yyFlexLexer : public FlexLexer {
public:
// arg_yyin and arg_yyout default to the cin and cout, but we
// only make that assignment when initializing in yylex().
yyFlexLexer( istream* arg_yyin = 0, ostream* arg_yyout = 0 );
virtual ~yyFlexLexer();
void yy_switch_to_buffer( struct yy_buffer_state* new_buffer );
struct yy_buffer_state* yy_create_buffer( istream* s, int size );
void yy_delete_buffer( struct yy_buffer_state* b );
void yyrestart( istream* s );
virtual int yylex();
virtual void switch_streams( istream* new_in, ostream* new_out );
protected:
virtual int LexerInput( char* buf, int max_size );
virtual void LexerOutput( const char* buf, int size );
virtual void LexerError( const char* msg );
void yyunput( int c, char* buf_ptr );
int yyinput();
void yy_load_buffer_state();
void yy_init_buffer( struct yy_buffer_state* b, istream* s );
void yy_flush_buffer( struct yy_buffer_state* b );
int yy_start_stack_ptr;
int yy_start_stack_depth;
int* yy_start_stack;
void yy_push_state( int new_state );
void yy_pop_state();
int yy_top_state();
yy_state_type yy_get_previous_state();
yy_state_type yy_try_NUL_trans( yy_state_type current_state );
int yy_get_next_buffer();
istream* yyin; // input source for default LexerInput
ostream* yyout; // output sink for default LexerOutput
struct yy_buffer_state* yy_current_buffer;
// yy_hold_char holds the character lost when yytext is formed.
char yy_hold_char;
// Number of characters read into yy_ch_buf.
int yy_n_chars;
// Points to current character in buffer.
char* yy_c_buf_p;
int yy_init; // whether we need to initialize
int yy_start; // 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 ...
int yy_did_buffer_switch_on_eof;
// The following are not always needed, but may be depending
// on use of certain flex features (like REJECT or yymore()).
yy_state_type yy_last_accepting_state;
char* yy_last_accepting_cpos;
yy_state_type* yy_state_buf;
yy_state_type* yy_state_ptr;
char* yy_full_match;
int* yy_full_state;
int yy_full_lp;
int yy_lp;
int yy_looking_for_trail_begin;
int yy_more_flag;
int yy_more_len;
int yy_more_offset;
int yy_prev_more_offset;
};
#endif
UnxUtils--包含Windows平台下Lex和Yacc开发所必须的flex和bison程序
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2009-07-31
23:23:06
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UnxUtils--包含Windows平台下Lex和Yacc开发所必须的flex和bison程序 （130个子文件） 
libfl.a 4KB libfl.a 4KB
recode.exe 1.03MB sh.exe 416KB wget.exe 247KB gawk.exe 191KB unrar.exe 158KB agrep.exe 144KB flex.exe 143KB rman.exe 134KB make.exe 124KB tar.exe 112KB unzip.exe 100KB m4.exe 82KB bison.exe 81KB fgrep.exe 79KB grep.exe 79KB egrep.exe 79KB less.exe 76KB bzip2.exe 76KB bunzip2.exe 74KB cp.exe 72KB ln.exe 68KB mv.exe 68KB diff.exe 67KB zip.exe 67KB find.exe 64KB rm.exe 64KB csplit.exe 64KB patch.exe 59KB indent.exe 58KB ls.exe 57KB bc.exe 52KB nl.exe 51KB tac.exe 49KB sed.exe 48KB gzip.exe 48KB gunzip.exe 48KB zcat.exe 48KB jwhois.exe 48KB xargs.exe 44KB install.exe 40KB dd.exe 40KB date.exe 39KB man.exe 38KB sort.exe 38KB pr.exe 37KB touch.exe 35KB tail.exe 35KB od.exe 35KB shar.exe 35KB tr.exe 33KB mkdir.exe 32KB makedepend.exe 32KB wc.exe 29KB rmdir.exe 28KB dircolors.exe 28KB md5sum.exe 28KB join.exe 27KB du.exe 26KB df.exe 26KB dc.exe 25KB compress.exe 25KB fmt.exe 24KB head.exe 24KB cut.exe 24KB chgrp.exe 24KB split.exe 23KB uniq.exe 23KB chown.exe 23KB chmod.exe 22KB cat.exe 22KB mknod.exe 21KB fold.exe 21KB paste.exe 21KB expand.exe 21KB unexpand.exe 21KB comm.exe 21KB mvdir.exe 20KB sdiff.exe 20KB cksum.exe 20KB sum.exe 19KB sync.exe 19KB factor.exe 18KB seq.exe 18KB test.exe 18KB diff3.exe 18KB tee.exe 17KB dirname.exe 17KB uname.exe 17KB sleep.exe 16KB gsar.exe 15KB mkfifo.exe 14KB expr.exe 14KB su.exe 13KB printf.exe 13KB stego.exe 13KB which.exe 12KB unshar.exe 11KB cmp.exe 11KB共 130 条
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