osfmk/ddb/db_lex.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * @OSF_COPYRIGHT@
  24  */
  25 /*
  26  * HISTORY
  27  *
  28  * Revision 1.1.1.1  1998/09/22 21:05:48  wsanchez
  29  * Import of Mac OS X kernel (~semeria)
  30  *
  31  * Revision 1.1.1.1  1998/03/07 02:26:09  wsanchez
  32  * Import of OSF Mach kernel (~mburg)
  33  *
  34  * Revision 1.1.11.2  1995/01/06  19:10:24  devrcs
  35  *      mk6 CR668 - 1.3b26 merge
  36  *      64bit cleanup
  37  *      [1994/10/14  03:39:54  dwm]
  38  *
  39  * Revision 1.1.11.1  1994/09/23  01:20:10  ezf
  40  *      change marker to not FREE
  41  *      [1994/09/22  21:10:18  ezf]
  42  *
  43  * Revision 1.1.4.3  1993/07/27  18:27:40  elliston
  44  *      Add ANSI prototypes.  CR #9523.
  45  *      [1993/07/27  18:12:19  elliston]
  46  *
  47  * Revision 1.1.4.2  1993/06/02  23:11:33  jeffc
  48  *      Added to OSF/1 R1.3 from NMK15.0.
  49  *      [1993/06/02  20:56:37  jeffc]
  50  *
  51  * Revision 1.1  1992/09/30  02:24:17  robert
  52  *      Initial revision
  53  *
  54  * $EndLog$
  55  */
  56 /* CMU_HIST */
  57 /*
  58  * Revision 2.5  91/10/09  16:00:48  af
  59  *       Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  60  *              Added db_lex_context structure and some routine declarations
  61  *                for macro and conditinal command.
  62  *              Added relational operator tokens etc. for condition expression.
  63  *              Changed TOK_STRING_SIZE from 120 to 64, and defined
  64  *                DB_LEX_LINE_SIZE as 256 which was previously embedded
  65  *                in db_lex.c as 120.
  66  *              [91/08/29            tak]
  67  *      Revision 2.4.1 91/07/15  09:30:00  tak
  68  *              Added db_lex_context for macro support
  69  *              Added some lexical constants to support logical expression etc.
  70  *              [91/05/15  13:55:00  tak]
  71  *
  72  * Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  73  *      Added db_lex_context structure and some routine declarations
  74  *        for macro and conditinal command.
  75  *      Added relational operator tokens etc. for condition expression.
  76  *      Changed TOK_STRING_SIZE from 120 to 64, and defined
  77  *        DB_LEX_LINE_SIZE as 256 which was previously embedded
  78  *        in db_lex.c as 120.
  79  *      [91/08/29            tak]
  80  *
  81  * Revision 2.4.1 91/07/15  09:30:00  tak
  82  *      Added db_lex_context for macro support
  83  *      Added some lexical constants to support logical expression etc.
  84  *      [91/05/15  13:55:00  tak]
  85  *
  86  * Revision 2.4  91/05/14  15:34:38  mrt
  87  *      Correcting copyright
  88  *
  89  * Revision 2.3  91/02/05  17:06:41  mrt
  90  *      Changed to new Mach copyright
  91  *      [91/01/31  16:18:28  mrt]
  92  *
  93  * Revision 2.2  90/08/27  21:51:16  dbg
  94  *      Add 'dotdot' token.
  95  *      [90/08/22            dbg]
  96  *      Export db_flush_lex.
  97  *      [90/08/07            dbg]
  98  *      Created.
  99  *      [90/07/25            dbg]
 100  *
 101  */
 102 /* CMU_ENDHIST */
 103 /*
 104  * Mach Operating System
 105  * Copyright (c) 1991,1990 Carnegie Mellon University
 106  * All Rights Reserved.
 107  *
 108  * Permission to use, copy, modify and distribute this software and its
 109  * documentation is hereby granted, provided that both the copyright
 110  * notice and this permission notice appear in all copies of the
 111  * software, derivative works or modified versions, and any portions
 112  * thereof, and that both notices appear in supporting documentation.
 113  *
 114  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 115  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 116  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 117  *
 118  * Carnegie Mellon requests users of this software to return to
 119  *
 120  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 121  *  School of Computer Science
 122  *  Carnegie Mellon University
 123  *  Pittsburgh PA 15213-3890
 124  *
 125  * any improvements or extensions that they make and grant Carnegie Mellon
 126  * the rights to redistribute these changes.
 127  */
 128 /*
 129  */
 130 /*
 131  *      Author: David B. Golub, Carnegie Mellon University
 132  *      Date:   7/90
 133  */
 134 /*
 135  * Lexical analyzer.
 136  */
 137
 138 #ifndef _DDB_DB_LEX_H_
 139 #define _DDB_DB_LEX_H_
 140
 141 #include <machine/db_machdep.h>          /* For db_expr_t */
 142
 143 #define TOK_STRING_SIZE         64
 144 #define DB_LEX_LINE_SIZE        256
 145
 146 struct db_lex_context {
 147         int  l_char;            /* peek char */
 148         int  l_token;           /* peek token */
 149         char *l_ptr;            /* line pointer */
 150         char *l_eptr;           /* line end pointer */
 151 };
 152
 153 extern db_expr_t db_tok_number;
 154 extern char     db_tok_string[TOK_STRING_SIZE];
 155 extern db_expr_t db_radix;
 156
 157 #define tEOF            (-1)
 158 #define tEOL            1
 159 #define tNUMBER         2
 160 #define tIDENT          3
 161 #define tPLUS           4
 162 #define tMINUS          5
 163 #define tDOT            6
 164 #define tSTAR           7
 165 #define tSLASH          8
 166 #define tEQ             9
 167 #define tLPAREN         10
 168 #define tRPAREN         11
 169 #define tPCT            12
 170 #define tHASH           13
 171 #define tCOMMA          14
 172 #define tQUOTE          15
 173 #define tDOLLAR         16
 174 #define tEXCL           17
 175 #define tSHIFT_L        18
 176 #define tSHIFT_R        19
 177 #define tDOTDOT         20
 178 #define tSEMI_COLON     21
 179 #define tLOG_EQ         22
 180 #define tLOG_NOT_EQ     23
 181 #define tLESS           24
 182 #define tLESS_EQ        25
 183 #define tGREATER        26
 184 #define tGREATER_EQ     27
 185 #define tBIT_AND        28
 186 #define tBIT_OR         29
 187 #define tLOG_AND        30
 188 #define tLOG_OR         31
 189 #define tSTRING         32
 190 #define tQUESTION       33
 191
 192 /* Prototypes for functions exported by this module.
 193  */
 194 int db_read_line(char *repeat_last);
 195
 196 void db_switch_input(
 197         char    *buffer,
 198         int     size);
 199
 200 void db_save_lex_context(struct db_lex_context *lp);
 201
 202 void db_restore_lex_context(struct db_lex_context *lp);
 203
 204 int db_read_char(void);
 205
 206 void db_unread_token(int t);
 207
 208 int db_read_token(void);
 209
 210 void db_flush_lex(void);
 211
 212 void db_skip_to_eol(void);
 213
 214 int db_lex(void);
 215
 216 #endif  /* !_DDB_DB_LEX_H_ */