osfmk/ddb/db_lex.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * @OSF_COPYRIGHT@
  27  */
  28 /*
  29  * HISTORY
  30  *
  31  * Revision 1.1.1.1  1998/09/22 21:05:48  wsanchez
  32  * Import of Mac OS X kernel (~semeria)
  33  *
  34  * Revision 1.1.1.1  1998/03/07 02:26:09  wsanchez
  35  * Import of OSF Mach kernel (~mburg)
  36  *
  37  * Revision 1.1.11.2  1995/01/06  19:10:24  devrcs
  38  *      mk6 CR668 - 1.3b26 merge
  39  *      64bit cleanup
  40  *      [1994/10/14  03:39:54  dwm]
  41  *
  42  * Revision 1.1.11.1  1994/09/23  01:20:10  ezf
  43  *      change marker to not FREE
  44  *      [1994/09/22  21:10:18  ezf]
  45  *
  46  * Revision 1.1.4.3  1993/07/27  18:27:40  elliston
  47  *      Add ANSI prototypes.  CR #9523.
  48  *      [1993/07/27  18:12:19  elliston]
  49  *
  50  * Revision 1.1.4.2  1993/06/02  23:11:33  jeffc
  51  *      Added to OSF/1 R1.3 from NMK15.0.
  52  *      [1993/06/02  20:56:37  jeffc]
  53  *
  54  * Revision 1.1  1992/09/30  02:24:17  robert
  55  *      Initial revision
  56  *
  57  * $EndLog$
  58  */
  59 /* CMU_HIST */
  60 /*
  61  * Revision 2.5  91/10/09  16:00:48  af
  62  *       Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  63  *              Added db_lex_context structure and some routine declarations
  64  *                for macro and conditinal command.
  65  *              Added relational operator tokens etc. for condition expression.
  66  *              Changed TOK_STRING_SIZE from 120 to 64, and defined
  67  *                DB_LEX_LINE_SIZE as 256 which was previously embedded
  68  *                in db_lex.c as 120.
  69  *              [91/08/29            tak]
  70  *      Revision 2.4.1 91/07/15  09:30:00  tak
  71  *              Added db_lex_context for macro support
  72  *              Added some lexical constants to support logical expression etc.
  73  *              [91/05/15  13:55:00  tak]
  74  *
  75  * Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  76  *      Added db_lex_context structure and some routine declarations
  77  *        for macro and conditinal command.
  78  *      Added relational operator tokens etc. for condition expression.
  79  *      Changed TOK_STRING_SIZE from 120 to 64, and defined
  80  *        DB_LEX_LINE_SIZE as 256 which was previously embedded
  81  *        in db_lex.c as 120.
  82  *      [91/08/29            tak]
  83  *
  84  * Revision 2.4.1 91/07/15  09:30:00  tak
  85  *      Added db_lex_context for macro support
  86  *      Added some lexical constants to support logical expression etc.
  87  *      [91/05/15  13:55:00  tak]
  88  *
  89  * Revision 2.4  91/05/14  15:34:38  mrt
  90  *      Correcting copyright
  91  *
  92  * Revision 2.3  91/02/05  17:06:41  mrt
  93  *      Changed to new Mach copyright
  94  *      [91/01/31  16:18:28  mrt]
  95  *
  96  * Revision 2.2  90/08/27  21:51:16  dbg
  97  *      Add 'dotdot' token.
  98  *      [90/08/22            dbg]
  99  *      Export db_flush_lex.
 100  *      [90/08/07            dbg]
 101  *      Created.
 102  *      [90/07/25            dbg]
 103  *
 104  */
 105 /* CMU_ENDHIST */
 106 /*
 107  * Mach Operating System
 108  * Copyright (c) 1991,1990 Carnegie Mellon University
 109  * All Rights Reserved.
 110  *
 111  * Permission to use, copy, modify and distribute this software and its
 112  * documentation is hereby granted, provided that both the copyright
 113  * notice and this permission notice appear in all copies of the
 114  * software, derivative works or modified versions, and any portions
 115  * thereof, and that both notices appear in supporting documentation.
 116  *
 117  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 118  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 119  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 120  *
 121  * Carnegie Mellon requests users of this software to return to
 122  *
 123  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 124  *  School of Computer Science
 125  *  Carnegie Mellon University
 126  *  Pittsburgh PA 15213-3890
 127  *
 128  * any improvements or extensions that they make and grant Carnegie Mellon
 129  * the rights to redistribute these changes.
 130  */
 131 /*
 132  */
 133 /*
 134  *      Author: David B. Golub, Carnegie Mellon University
 135  *      Date:   7/90
 136  */
 137 /*
 138  * Lexical analyzer.
 139  */
 140
 141 #ifndef _DDB_DB_LEX_H_
 142 #define _DDB_DB_LEX_H_
 143
 144 #include <machine/db_machdep.h>          /* For db_expr_t */
 145
 146 #define TOK_STRING_SIZE         64
 147 #define DB_LEX_LINE_SIZE        256
 148
 149 struct db_lex_context {
 150         int  l_char;            /* peek char */
 151         int  l_token;           /* peek token */
 152         char *l_ptr;            /* line pointer */
 153         char *l_eptr;           /* line end pointer */
 154 };
 155
 156 extern db_expr_t db_tok_number;
 157 extern char     db_tok_string[TOK_STRING_SIZE];
 158 extern db_expr_t db_radix;
 159
 160 #define tEOF            (-1)
 161 #define tEOL            1
 162 #define tNUMBER         2
 163 #define tIDENT          3
 164 #define tPLUS           4
 165 #define tMINUS          5
 166 #define tDOT            6
 167 #define tSTAR           7
 168 #define tSLASH          8
 169 #define tEQ             9
 170 #define tLPAREN         10
 171 #define tRPAREN         11
 172 #define tPCT            12
 173 #define tHASH           13
 174 #define tCOMMA          14
 175 #define tQUOTE          15
 176 #define tDOLLAR         16
 177 #define tEXCL           17
 178 #define tSHIFT_L        18
 179 #define tSHIFT_R        19
 180 #define tDOTDOT         20
 181 #define tSEMI_COLON     21
 182 #define tLOG_EQ         22
 183 #define tLOG_NOT_EQ     23
 184 #define tLESS           24
 185 #define tLESS_EQ        25
 186 #define tGREATER        26
 187 #define tGREATER_EQ     27
 188 #define tBIT_AND        28
 189 #define tBIT_OR         29
 190 #define tLOG_AND        30
 191 #define tLOG_OR         31
 192 #define tSTRING         32
 193 #define tQUESTION       33
 194
 195 /* Prototypes for functions exported by this module.
 196  */
 197 int db_read_line(char *repeat_last);
 198
 199 void db_switch_input(
 200         char    *buffer,
 201         int     size);
 202
 203 void db_save_lex_context(struct db_lex_context *lp);
 204
 205 void db_restore_lex_context(struct db_lex_context *lp);
 206
 207 int db_read_char(void);
 208
 209 void db_unread_token(int t);
 210
 211 int db_read_token(void);
 212
 213 void db_flush_lex(void);
 214
 215 void db_skip_to_eol(void);
 216
 217 int db_lex(void);
 218
 219 #endif  /* !_DDB_DB_LEX_H_ */