97 lines
3.3 KiB
C
97 lines
3.3 KiB
C
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/*
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* Copyright (c) 1994 Philip A. Nelson.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Philip A. Nelson.
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* 4. The name of Philip A. Nelson may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PHILIP NELSON ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL PHILIP NELSON BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: command.h,v 1.1 1994/04/22 00:04:29 cgd Exp $
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*/
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/*
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* Command tool - a library for building command languages fast.
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*
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* Philip A. Nelson, Oct 1991
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*
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* Some code is lifted from the PC532 monitor/debugger written
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* by Bruce Culbertson. (Thanks Bruce!)
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*/
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/* Defines that depend on ANSI or not ANSI. */
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#ifdef __STDC__
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#define CMD_PROC(name) int name (int, char **, char *)
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#define PROTO(name,args) name args
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#define CONST const
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#else
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#define CMD_PROC(name) name ();
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#define PROTO(name,args) name ()
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#define CONST
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#endif
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/* The commands are stored in a table that includes their name, a pointer
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to the function that processes the command and a help message. */
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struct command { /* The commands, their names, help */
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PROTO (int (*fn), (int, char **, char *));
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char *name;
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char *syntax;
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char *help;
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};
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/* The command loop will do the following:
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a) prompt the user for a command.
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b) read the command line.
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c) break the input line into arguments.
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d) search for the command in the command table.
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e) If the command is found, call the routine to process it.
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f) IF the return value from the command is NON ZERO, exit the loop.
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Each function to process a command must be defined as follows:
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int name ( int num, char ** cmd_args ) where num is the number
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of arguments (the command name is not counted) and the cmd_args is
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an array of pointers to the arguments. cmd_args[0] is the command
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name. cmd_args[1] is the first argument.
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*/
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/* Constants defining the limits of the command processor.
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*/
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#define TRUE 1
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#define FALSE 0
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#define LINELEN 256
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#define MAXARGS 16
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#define BLANK_LINE 0
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/* Stuff for myStrCmp()
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*/
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#define CMP_NOMATCH 0
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#define CMP_MATCH 1
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#define CMP_SUBSTR 2
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