/*
 * Mach Operating System
 * Copyright (c) 1991,1990 Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 *
 * $FreeBSD: src/sys/ddb/db_lex.h,v 1.12 1999/08/28 00:41:08 peter Exp $
 */

#ifndef _DDB_DB_LEX_H_
#define _DDB_DB_LEX_H_

#ifndef _DDB_DDB_H_
#include <ddb/ddb.h>
#endif

/*
 *      Author: David B. Golub, Carnegie Mellon University
 *      Date:   7/90
 */

#define TOK_STRING_SIZE         120

#define tEOF            (-1)
#define tEOL            1
#define tNUMBER         2
#define tIDENT          3
#define tPLUS           4
#define tMINUS          5
#define tDOT            6
#define tSTAR           7
#define tSLASH          8
#define tEQ             9
#define tLPAREN         10
#define tRPAREN         11
#define tPCT            12
#define tHASH           13
#define tCOMMA          14
#define tDITTO          15
#define tDOLLAR         16
#define tEXCL           17
#define tSHIFT_L        18
#define tSHIFT_R        19
#define tDOTDOT         20

#ifdef _KERNEL

/*
 * Lexical analyzer.
 */
void    db_flush_lex (void);
char   *db_num_to_str(db_expr_t);
int     db_read_line (void);
int     db_read_token (void);
void    db_unread_token (int t);

extern db_expr_t        db_tok_number;
extern char     db_tok_string[TOK_STRING_SIZE];

#endif

#endif /* !_DDB_DB_LEX_H_ */