RT-Thread finsh源码分析: finsh_token.h

/* *  token lex for finsh shell. * * COPYRIGHT (C) 2006 - 2013, RT-Thread Development Team * *  This file is part of RT-Thread (http://www.rt-thread.org) *  Maintainer: bernard.xiong <bernard.xiong at gmail.com> * *  All rights reserved. * *  This program is free software; you can redistribute it and/or modify *  it under the terms of the GNU General Public License as published by *  the Free Software Foundation; either version 2 of the License, or *  (at your option) any later version. * *  This program is distributed in the hope that it will be useful, *  but WITHOUT ANY WARRANTY; without even the implied warranty of *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *  GNU General Public License for more details. * *  You should have received a copy of the GNU General Public License along *  with this program; if not, write to the Free Software Foundation, Inc., *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Change Logs: * Date           Author       Notes * 2010-03-22     Bernard      first version */#ifndef __FINSH_TOKEN_H__#define __FINSH_TOKEN_H__#include <finsh.h>//token类型定义enum finsh_token_type{    finsh_token_type_left_paren = 1,    /* (        */    finsh_token_type_right_paren ,      /* )        */    finsh_token_type_comma ,            /* ,        */    finsh_token_type_semicolon ,        /* ;        */    finsh_token_type_mul ,              /* *        */    finsh_token_type_add ,              /* +        */    finsh_token_type_inc ,              /* ++       */    finsh_token_type_sub ,              /* -        */    finsh_token_type_dec ,              /* --       */    finsh_token_type_div ,              /* /        */    finsh_token_type_mod ,              /* %        */    finsh_token_type_assign ,           /* =        */    finsh_token_type_and,               /* &        */    finsh_token_type_or,                /* |        */    finsh_token_type_xor,               /* ^        */    finsh_token_type_bitwise,           /* ~       */    finsh_token_type_shl,               /* <<       */    finsh_token_type_shr,               /* >>       */    finsh_token_type_comments,          /* //       */    /*-- data type --*/    finsh_token_type_void,              /* void     */    finsh_token_type_char,              /* char     */    finsh_token_type_short,             /* short    */    finsh_token_type_int,               /* int      */    finsh_token_type_long,              /* long     */    finsh_token_type_unsigned,          /* unsigned */    /* data value type */    finsh_token_type_value_char,        /* v:char   */    finsh_token_type_value_int,         /* v:int    */    finsh_token_type_value_long,        /* v:long   */    finsh_token_type_value_string,      /* v:string */    finsh_token_type_value_null,        /* NULL     */    /*-- others --*/    finsh_token_type_identifier,        /* ID       */    finsh_token_type_bad,               /* bad token */    finsh_token_type_eof};//获取当前操作位移#define finsh_token_position(self) (self)->position#define finsh_token_replay(self) (self)->replay = 1void finsh_token_init(struct finsh_token* self, u_char* script);enum finsh_token_type finsh_token_token(struct finsh_token* self);void finsh_token_get_token(struct finsh_token* self, u_char* token);#endif