custtbl.c

Calc Software Package for Number Calc

/*
 * custtbl - custom interface table
 *
 * Copyright (C) 1999  Landon Curt Noll
 *
 * Calc is open software; you can redistribute it and/or modify it under
 * the terms of the version 2.1 of the GNU Lesser General Public License
 * as published by the Free Software Foundation.
 *
 * Calc is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU Lesser General
 * Public License for more details.
 *
 * A copy of version 2.1 of the GNU Lesser General Public License is
 * distributed with calc under the filename COPYING-LGPL.  You should have
 * received a copy with calc; if not, write to Free Software Foundation, Inc.
 * 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
 *
 * @(#) $Revision: 29.4 $
 * @(#) $Id: custtbl.c,v 29.4 2005/02/05 06:16:19 chongo Exp $
 * @(#) $Source: /usr/local/src/cmd/calc/custom/RCS/custtbl.c,v $
 *
 * Under source code control:	1997/03/09 02:28:54
 * File existed as early as:	1997
 *
 * chongo <was here> /\oo/\	http://www.isthe.com/chongo/
 * Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/
 */


#include "../have_const.h"
#include "../value.h"
#include "../custom.h"

/*
 * NOTE: See the file CUSTOM for instructions on how to add
 *	 custom functions.
 */


#if defined(CUSTOM)


/*
 * add your forward custom function declaractions here
 *
 * Declare custom functions as follows:
 *
 *	extern VALUE c_xyz(char*, int, VALUE**);
 *
 * We suggest that you sort the entries below by name.
 */
extern VALUE c_argv(char*, int, VALUE**);
extern VALUE c_devnull(char*, int, VALUE**);
extern VALUE c_help(char*, int, VALUE**);
extern VALUE c_sysinfo(char*, int, VALUE**);
extern VALUE c_pzasusb8(char*, int, VALUE**);
extern VALUE c_pmodm127(char*, int, VALUE**);


#endif /* CUSTOM */


/*
 * custom interface table
 *
 * The order of the elements in struct custom are:
 *
 *	{ "xyz", "brief description of the xyz custom function",
 *	   minimum_args, maximum_args, c_xyz },
 *
 * where:
 *
 *	minimum_args	an int >= 0
 *	maximum_args	an int >= minimum_args and <= MAX_CUSTOM_ARGS
 *
 * Use MAX_CUSTOM_ARGS for maximum_args is the maximum number of args
 * is potentially 'unlimited'.
 *
 * If the brief description cannot fit on the same line as the name
 * without wrapping on a 80 col window, the description is probably
 * too long and will not look nice in the show custom output.
 */
CONST struct custom cust[] = {

#if defined(CUSTOM)


	/*
	 * add your own custom functions here
	 *
	 * We suggest that you sort the entries below by name
	 * so that show custom will produce a nice sorted list.
	 */

	{ "argv", "information about its args, returns arg count",
	 0, MAX_CUSTOM_ARGS, c_argv },

	{ "devnull", "does nothing",
	 0, MAX_CUSTOM_ARGS, c_devnull },

	{ "help", "help for custom functions",
	 1, 1, c_help },

	{ "sysinfo", "return a calc #define value",
	 0, 1, c_sysinfo },

	{ "pzasusb8", "print ZVALUE as USB8",
	 0, 1, c_pzasusb8 },

	{ "pmodm127", "calculate q mod 2^(2^127-1)",
	 1, 1, c_pmodm127 },


#endif /* CUSTOM */

	/*
	 * This must be at the end of this table!!!
	 */
	{NULL, NULL,
	 0, 0, NULL}
};