/*      $NetBSD: db_lex.h,v 1.17 2022/08/30 22:37:03 riastradh Exp $    */

/*
* 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 "AS IS"
* 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  [email protected]
*  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.
*
*      Author: David B. Golub, Carnegie Mellon University
*      Date:   7/90
*/

/*
* Lexical analyzer.
*/
void    db_flush_lex(void);
char   *db_num_to_str(db_expr_t);
void    db_num_to_strbuf(db_expr_t, char *, size_t);
int     db_read_line(void);
void    db_set_line(const char *, const char *);
void    db_get_line(const char **, const char **);
int     db_read_token(void);
void    db_unread_token(int);

#define DB_LINE_MAXLEN          120

extern db_expr_t db_tok_number;
#define TOK_STRING_SIZE         DB_LINE_MAXLEN
extern char     db_tok_string[];

#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