osfmk/ddb/db_lex.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * @OSF_COPYRIGHT@
  32  */
  33 /*
  34  * HISTORY
  35  *
  36  * Revision 1.1.1.1  1998/09/22 21:05:48  wsanchez
  37  * Import of Mac OS X kernel (~semeria)
  38  *
  39  * Revision 1.1.1.1  1998/03/07 02:26:09  wsanchez
  40  * Import of OSF Mach kernel (~mburg)
  41  *
  42  * Revision 1.1.11.2  1995/01/06  19:10:24  devrcs
  43  *      mk6 CR668 - 1.3b26 merge
  44  *      64bit cleanup
  45  *      [1994/10/14  03:39:54  dwm]
  46  *
  47  * Revision 1.1.11.1  1994/09/23  01:20:10  ezf
  48  *      change marker to not FREE
  49  *      [1994/09/22  21:10:18  ezf]
  50  *
  51  * Revision 1.1.4.3  1993/07/27  18:27:40  elliston
  52  *      Add ANSI prototypes.  CR #9523.
  53  *      [1993/07/27  18:12:19  elliston]
  54  *
  55  * Revision 1.1.4.2  1993/06/02  23:11:33  jeffc
  56  *      Added to OSF/1 R1.3 from NMK15.0.
  57  *      [1993/06/02  20:56:37  jeffc]
  58  *
  59  * Revision 1.1  1992/09/30  02:24:17  robert
  60  *      Initial revision
  61  *
  62  * $EndLog$
  63  */
  64 /* CMU_HIST */
  65 /*
  66  * Revision 2.5  91/10/09  16:00:48  af
  67  *       Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  68  *              Added db_lex_context structure and some routine declarations
  69  *                for macro and conditinal command.
  70  *              Added relational operator tokens etc. for condition expression.
  71  *              Changed TOK_STRING_SIZE from 120 to 64, and defined
  72  *                DB_LEX_LINE_SIZE as 256 which was previously embedded
  73  *                in db_lex.c as 120.
  74  *              [91/08/29            tak]
  75  *      Revision 2.4.1 91/07/15  09:30:00  tak
  76  *              Added db_lex_context for macro support
  77  *              Added some lexical constants to support logical expression etc.
  78  *              [91/05/15  13:55:00  tak]
  79  *
  80  * Revision 2.4.3.1  91/10/05  13:06:34  jeffreyh
  81  *      Added db_lex_context structure and some routine declarations
  82  *        for macro and conditinal command.
  83  *      Added relational operator tokens etc. for condition expression.
  84  *      Changed TOK_STRING_SIZE from 120 to 64, and defined
  85  *        DB_LEX_LINE_SIZE as 256 which was previously embedded
  86  *        in db_lex.c as 120.
  87  *      [91/08/29            tak]
  88  *
  89  * Revision 2.4.1 91/07/15  09:30:00  tak
  90  *      Added db_lex_context for macro support
  91  *      Added some lexical constants to support logical expression etc.
  92  *      [91/05/15  13:55:00  tak]
  93  *
  94  * Revision 2.4  91/05/14  15:34:38  mrt
  95  *      Correcting copyright
  96  *
  97  * Revision 2.3  91/02/05  17:06:41  mrt
  98  *      Changed to new Mach copyright
  99  *      [91/01/31  16:18:28  mrt]
 100  *
 101  * Revision 2.2  90/08/27  21:51:16  dbg
 102  *      Add 'dotdot' token.
 103  *      [90/08/22            dbg]
 104  *      Export db_flush_lex.
 105  *      [90/08/07            dbg]
 106  *      Created.
 107  *      [90/07/25            dbg]
 108  *
 109  */
 110 /* CMU_ENDHIST */
 111 /*
 112  * Mach Operating System
 113  * Copyright (c) 1991,1990 Carnegie Mellon University
 114  * All Rights Reserved.
 115  *
 116  * Permission to use, copy, modify and distribute this software and its
 117  * documentation is hereby granted, provided that both the copyright
 118  * notice and this permission notice appear in all copies of the
 119  * software, derivative works or modified versions, and any portions
 120  * thereof, and that both notices appear in supporting documentation.
 121  *
 122  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 123  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 124  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 125  *
 126  * Carnegie Mellon requests users of this software to return to
 127  *
 128  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 129  *  School of Computer Science
 130  *  Carnegie Mellon University
 131  *  Pittsburgh PA 15213-3890
 132  *
 133  * any improvements or extensions that they make and grant Carnegie Mellon
 134  * the rights to redistribute these changes.
 135  */
 136 /*
 137  */
 138 /*
 139  *      Author: David B. Golub, Carnegie Mellon University
 140  *      Date:   7/90
 141  */
 142 /*
 143  * Lexical analyzer.
 144  */
 145
 146 #ifndef _DDB_DB_LEX_H_
 147 #define _DDB_DB_LEX_H_
 148
 149 #include <machine/db_machdep.h>          /* For db_expr_t */
 150
 151 #define TOK_STRING_SIZE         64
 152 #define DB_LEX_LINE_SIZE        256
 153
 154 struct db_lex_context {
 155         int  l_char;            /* peek char */
 156         int  l_token;           /* peek token */
 157         char *l_ptr;            /* line pointer */
 158         char *l_eptr;           /* line end pointer */
 159 };
 160
 161 extern db_expr_t db_tok_number;
 162 extern char     db_tok_string[TOK_STRING_SIZE];
 163 extern db_expr_t db_radix;
 164
 165 #define tEOF            (-1)
 166 #define tEOL            1
 167 #define tNUMBER         2
 168 #define tIDENT          3
 169 #define tPLUS           4
 170 #define tMINUS          5
 171 #define tDOT            6
 172 #define tSTAR           7
 173 #define tSLASH          8
 174 #define tEQ             9
 175 #define tLPAREN         10
 176 #define tRPAREN         11
 177 #define tPCT            12
 178 #define tHASH           13
 179 #define tCOMMA          14
 180 #define tQUOTE          15
 181 #define tDOLLAR         16
 182 #define tEXCL           17
 183 #define tSHIFT_L        18
 184 #define tSHIFT_R        19
 185 #define tDOTDOT         20
 186 #define tSEMI_COLON     21
 187 #define tLOG_EQ         22
 188 #define tLOG_NOT_EQ     23
 189 #define tLESS           24
 190 #define tLESS_EQ        25
 191 #define tGREATER        26
 192 #define tGREATER_EQ     27
 193 #define tBIT_AND        28
 194 #define tBIT_OR         29
 195 #define tLOG_AND        30
 196 #define tLOG_OR         31
 197 #define tSTRING         32
 198 #define tQUESTION       33
 199
 200 /* Prototypes for functions exported by this module.
 201  */
 202 int db_read_line(char *repeat_last);
 203
 204 void db_switch_input(
 205         char    *buffer,
 206         int     size);
 207
 208 void db_save_lex_context(struct db_lex_context *lp);
 209
 210 void db_restore_lex_context(struct db_lex_context *lp);
 211
 212 int db_read_char(void);
 213
 214 void db_unread_token(int t);
 215
 216 int db_read_token(void);
 217
 218 void db_flush_lex(void);
 219
 220 void db_skip_to_eol(void);
 221
 222 int db_lex(void);
 223
 224 #endif  /* !_DDB_DB_LEX_H_ */