osfmk/ddb/db_lex.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_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. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  * HISTORY
  33  *
  34  * Revision 1.1.1.1  1998/09/22 21:05:48  wsanchez
  35  * Import of Mac OS X kernel (~semeria)
  36  *
  37  * Revision 1.1.1.1  1998/03/07 02:26:09  wsanchez
  38  * Import of OSF Mach kernel (~mburg)
  39  *
  40  * Revision 1.1.11.2  1995/01/06  19:10:24  devrcs
  41  *      mk6 CR668 - 1.3b26 merge
  42  *      64bit cleanup
  43  *      [1994/10/14  03:39:54  dwm]
  44  *
  45  * Revision 1.1.11.1  1994/09/23  01:20:10  ezf
  46  *      change marker to not FREE
  47  *      [1994/09/22  21:10:18  ezf]
  48  *
  49  * Revision 1.1.4.3  1993/07/27  18:27:40  elliston
  50  *      Add ANSI prototypes.  CR #9523.
  51  *      [1993/07/27  18:12:19  elliston]
  52  *
  53  * Revision 1.1.4.2  1993/06/02  23:11:33  jeffc
  54  *      Added to OSF/1 R1.3 from NMK15.0.
  55  *      [1993/06/02  20:56:37  jeffc]
  56  *
  57  * Revision 1.1  1992/09/30  02:24:17  robert
  58  *      Initial revision
  59  *
  60  * $EndLog$
  61  */
  62 /* CMU_HIST */
  63 /*
  64  * Revision 2.5  91/10/09  16:00:48  af
  65  *       Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  66  *              Added db_lex_context structure and some routine declarations
  67  *                for macro and conditinal command.
  68  *              Added relational operator tokens etc. for condition expression.
  69  *              Changed TOK_STRING_SIZE from 120 to 64, and defined
  70  *                DB_LEX_LINE_SIZE as 256 which was previously embedded
  71  *                in db_lex.c as 120.
  72  *              [91/08/29            tak]
  73  *      Revision 2.4.1 91/07/15  09:30:00  tak
  74  *              Added db_lex_context for macro support
  75  *              Added some lexical constants to support logical expression etc.
  76  *              [91/05/15  13:55:00  tak]
  77  *
  78  * Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  79  *      Added db_lex_context structure and some routine declarations
  80  *        for macro and conditinal command.
  81  *      Added relational operator tokens etc. for condition expression.
  82  *      Changed TOK_STRING_SIZE from 120 to 64, and defined
  83  *        DB_LEX_LINE_SIZE as 256 which was previously embedded
  84  *        in db_lex.c as 120.
  85  *      [91/08/29            tak]
  86  *
  87  * Revision 2.4.1 91/07/15  09:30:00  tak
  88  *      Added db_lex_context for macro support
  89  *      Added some lexical constants to support logical expression etc.
  90  *      [91/05/15  13:55:00  tak]
  91  *
  92  * Revision 2.4  91/05/14  15:34:38  mrt
  93  *      Correcting copyright
  94  *
  95  * Revision 2.3  91/02/05  17:06:41  mrt
  96  *      Changed to new Mach copyright
  97  *      [91/01/31  16:18:28  mrt]
  98  *
  99  * Revision 2.2  90/08/27  21:51:16  dbg
 100  *      Add 'dotdot' token.
 101  *      [90/08/22            dbg]
 102  *      Export db_flush_lex.
 103  *      [90/08/07            dbg]
 104  *      Created.
 105  *      [90/07/25            dbg]
 106  *
 107  */
 108 /* CMU_ENDHIST */
 109 /*
 110  * Mach Operating System
 111  * Copyright (c) 1991,1990 Carnegie Mellon University
 112  * All Rights Reserved.
 113  *
 114  * Permission to use, copy, modify and distribute this software and its
 115  * documentation is hereby granted, provided that both the copyright
 116  * notice and this permission notice appear in all copies of the
 117  * software, derivative works or modified versions, and any portions
 118  * thereof, and that both notices appear in supporting documentation.
 119  *
 120  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 121  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 122  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 123  *
 124  * Carnegie Mellon requests users of this software to return to
 125  *
 126  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 127  *  School of Computer Science
 128  *  Carnegie Mellon University
 129  *  Pittsburgh PA 15213-3890
 130  *
 131  * any improvements or extensions that they make and grant Carnegie Mellon
 132  * the rights to redistribute these changes.
 133  */
 134 /*
 135  */
 136 /*
 137  *      Author: David B. Golub, Carnegie Mellon University
 138  *      Date:   7/90
 139  */
 140 /*
 141  * Lexical analyzer.
 142  */
 143
 144 #ifndef _DDB_DB_LEX_H_
 145 #define _DDB_DB_LEX_H_
 146
 147 #include <machine/db_machdep.h>          /* For db_expr_t */
 148
 149 #define TOK_STRING_SIZE         64
 150 #define DB_LEX_LINE_SIZE        256
 151
 152 struct db_lex_context {
 153         int  l_char;            /* peek char */
 154         int  l_token;           /* peek token */
 155         char *l_ptr;            /* line pointer */
 156         char *l_eptr;           /* line end pointer */
 157 };
 158
 159 extern db_expr_t db_tok_number;
 160 extern char     db_tok_string[TOK_STRING_SIZE];
 161 extern db_expr_t db_radix;
 162
 163 #define tEOF            (-1)
 164 #define tEOL            1
 165 #define tNUMBER         2
 166 #define tIDENT          3
 167 #define tPLUS           4
 168 #define tMINUS          5
 169 #define tDOT            6
 170 #define tSTAR           7
 171 #define tSLASH          8
 172 #define tEQ             9
 173 #define tLPAREN         10
 174 #define tRPAREN         11
 175 #define tPCT            12
 176 #define tHASH           13
 177 #define tCOMMA          14
 178 #define tQUOTE          15
 179 #define tDOLLAR         16
 180 #define tEXCL           17
 181 #define tSHIFT_L        18
 182 #define tSHIFT_R        19
 183 #define tDOTDOT         20
 184 #define tSEMI_COLON     21
 185 #define tLOG_EQ         22
 186 #define tLOG_NOT_EQ     23
 187 #define tLESS           24
 188 #define tLESS_EQ        25
 189 #define tGREATER        26
 190 #define tGREATER_EQ     27
 191 #define tBIT_AND        28
 192 #define tBIT_OR         29
 193 #define tLOG_AND        30
 194 #define tLOG_OR         31
 195 #define tSTRING         32
 196 #define tQUESTION       33
 197
 198 /* Prototypes for functions exported by this module.
 199  */
 200 int db_read_line(char *repeat_last);
 201
 202 void db_switch_input(
 203         char    *buffer,
 204         int     size);
 205
 206 void db_save_lex_context(struct db_lex_context *lp);
 207
 208 void db_restore_lex_context(struct db_lex_context *lp);
 209
 210 int db_read_char(void);
 211
 212 void db_unread_token(int t);
 213
 214 int db_read_token(void);
 215
 216 void db_flush_lex(void);
 217
 218 void db_skip_to_eol(void);
 219
 220 int db_lex(void);
 221
 222 #endif  /* !_DDB_DB_LEX_H_ */