osfmk/ddb/db_lex.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * @OSF_COPYRIGHT@
  25  */
  26 /*
  27  * HISTORY
  28  *
  29  * Revision 1.1.1.1  1998/09/22 21:05:48  wsanchez
  30  * Import of Mac OS X kernel (~semeria)
  31  *
  32  * Revision 1.1.1.1  1998/03/07 02:26:09  wsanchez
  33  * Import of OSF Mach kernel (~mburg)
  34  *
  35  * Revision 1.1.11.2  1995/01/06  19:10:24  devrcs
  36  *      mk6 CR668 - 1.3b26 merge
  37  *      64bit cleanup
  38  *      [1994/10/14  03:39:54  dwm]
  39  *
  40  * Revision 1.1.11.1  1994/09/23  01:20:10  ezf
  41  *      change marker to not FREE
  42  *      [1994/09/22  21:10:18  ezf]
  43  *
  44  * Revision 1.1.4.3  1993/07/27  18:27:40  elliston
  45  *      Add ANSI prototypes.  CR #9523.
  46  *      [1993/07/27  18:12:19  elliston]
  47  *
  48  * Revision 1.1.4.2  1993/06/02  23:11:33  jeffc
  49  *      Added to OSF/1 R1.3 from NMK15.0.
  50  *      [1993/06/02  20:56:37  jeffc]
  51  *
  52  * Revision 1.1  1992/09/30  02:24:17  robert
  53  *      Initial revision
  54  *
  55  * $EndLog$
  56  */
  57 /* CMU_HIST */
  58 /*
  59  * Revision 2.5  91/10/09  16:00:48  af
  60  *       Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  61  *              Added db_lex_context structure and some routine declarations
  62  *                for macro and conditinal command.
  63  *              Added relational operator tokens etc. for condition expression.
  64  *              Changed TOK_STRING_SIZE from 120 to 64, and defined
  65  *                DB_LEX_LINE_SIZE as 256 which was previously embedded
  66  *                in db_lex.c as 120.
  67  *              [91/08/29            tak]
  68  *      Revision 2.4.1 91/07/15  09:30:00  tak
  69  *              Added db_lex_context for macro support
  70  *              Added some lexical constants to support logical expression etc.
  71  *              [91/05/15  13:55:00  tak]
  72  *
  73  * Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  74  *      Added db_lex_context structure and some routine declarations
  75  *        for macro and conditinal command.
  76  *      Added relational operator tokens etc. for condition expression.
  77  *      Changed TOK_STRING_SIZE from 120 to 64, and defined
  78  *        DB_LEX_LINE_SIZE as 256 which was previously embedded
  79  *        in db_lex.c as 120.
  80  *      [91/08/29            tak]
  81  *
  82  * Revision 2.4.1 91/07/15  09:30:00  tak
  83  *      Added db_lex_context for macro support
  84  *      Added some lexical constants to support logical expression etc.
  85  *      [91/05/15  13:55:00  tak]
  86  *
  87  * Revision 2.4  91/05/14  15:34:38  mrt
  88  *      Correcting copyright
  89  *
  90  * Revision 2.3  91/02/05  17:06:41  mrt
  91  *      Changed to new Mach copyright
  92  *      [91/01/31  16:18:28  mrt]
  93  *
  94  * Revision 2.2  90/08/27  21:51:16  dbg
  95  *      Add 'dotdot' token.
  96  *      [90/08/22            dbg]
  97  *      Export db_flush_lex.
  98  *      [90/08/07            dbg]
  99  *      Created.
 100  *      [90/07/25            dbg]
 101  *
 102  */
 103 /* CMU_ENDHIST */
 104 /*
 105  * Mach Operating System
 106  * Copyright (c) 1991,1990 Carnegie Mellon University
 107  * All Rights Reserved.
 108  *
 109  * Permission to use, copy, modify and distribute this software and its
 110  * documentation is hereby granted, provided that both the copyright
 111  * notice and this permission notice appear in all copies of the
 112  * software, derivative works or modified versions, and any portions
 113  * thereof, and that both notices appear in supporting documentation.
 114  *
 115  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 116  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 117  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 118  *
 119  * Carnegie Mellon requests users of this software to return to
 120  *
 121  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 122  *  School of Computer Science
 123  *  Carnegie Mellon University
 124  *  Pittsburgh PA 15213-3890
 125  *
 126  * any improvements or extensions that they make and grant Carnegie Mellon
 127  * the rights to redistribute these changes.
 128  */
 129 /*
 130  */
 131 /*
 132  *      Author: David B. Golub, Carnegie Mellon University
 133  *      Date:   7/90
 134  */
 135 /*
 136  * Lexical analyzer.
 137  */
 138
 139 #ifndef _DDB_DB_LEX_H_
 140 #define _DDB_DB_LEX_H_
 141
 142 #include <machine/db_machdep.h>          /* For db_expr_t */
 143
 144 #define TOK_STRING_SIZE         64
 145 #define DB_LEX_LINE_SIZE        256
 146
 147 struct db_lex_context {
 148         int  l_char;            /* peek char */
 149         int  l_token;           /* peek token */
 150         char *l_ptr;            /* line pointer */
 151         char *l_eptr;           /* line end pointer */
 152 };
 153
 154 extern db_expr_t db_tok_number;
 155 extern char     db_tok_string[TOK_STRING_SIZE];
 156 extern db_expr_t db_radix;
 157
 158 #define tEOF            (-1)
 159 #define tEOL            1
 160 #define tNUMBER         2
 161 #define tIDENT          3
 162 #define tPLUS           4
 163 #define tMINUS          5
 164 #define tDOT            6
 165 #define tSTAR           7
 166 #define tSLASH          8
 167 #define tEQ             9
 168 #define tLPAREN         10
 169 #define tRPAREN         11
 170 #define tPCT            12
 171 #define tHASH           13
 172 #define tCOMMA          14
 173 #define tQUOTE          15
 174 #define tDOLLAR         16
 175 #define tEXCL           17
 176 #define tSHIFT_L        18
 177 #define tSHIFT_R        19
 178 #define tDOTDOT         20
 179 #define tSEMI_COLON     21
 180 #define tLOG_EQ         22
 181 #define tLOG_NOT_EQ     23
 182 #define tLESS           24
 183 #define tLESS_EQ        25
 184 #define tGREATER        26
 185 #define tGREATER_EQ     27
 186 #define tBIT_AND        28
 187 #define tBIT_OR         29
 188 #define tLOG_AND        30
 189 #define tLOG_OR         31
 190 #define tSTRING         32
 191 #define tQUESTION       33
 192
 193 /* Prototypes for functions exported by this module.
 194  */
 195 int db_read_line(char *repeat_last);
 196
 197 void db_switch_input(
 198         char    *buffer,
 199         int     size);
 200
 201 void db_save_lex_context(struct db_lex_context *lp);
 202
 203 void db_restore_lex_context(struct db_lex_context *lp);
 204
 205 int db_read_char(void);
 206
 207 void db_unread_token(int t);
 208
 209 int db_read_token(void);
 210
 211 void db_flush_lex(void);
 212
 213 void db_skip_to_eol(void);
 214
 215 int db_lex(void);
 216
 217 #endif  /* !_DDB_DB_LEX_H_ */