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- ; -*-Lisp-*-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;
- ; File: init.lsp
- ; RCS: $Header: $
- ; Description: initialization file for XLISP 2.1
- ; Author: David Betz
- ; Created: Sat Oct 5 21:04:55 1991
- ; Modified: Sat Oct 5 21:05:16 1991 (Niels Mayer) mayer@hplnpm
- ; Language: Lisp
- ; Package: N/A
- ; Status: X11r5 contrib tape release
- ;
- ; WINTERP Copyright 1989, 1990, 1991 Hewlett-Packard Company (by Niels Mayer).
- ; XLISP version 2.1, Copyright (c) 1989, by David Betz.
- ;
- ; Permission to use, copy, modify, distribute, and sell this software and its
- ; documentation for any purpose is hereby granted without fee, provided that
- ; the above copyright notice appear in all copies and that both that
- ; copyright notice and this permission notice appear in supporting
- ; documentation, and that the name of Hewlett-Packard and Niels Mayer not be
- ; used in advertising or publicity pertaining to distribution of the software
- ; without specific, written prior permission. Hewlett-Packard and Niels Mayer
- ; makes no representations about the suitability of this software for any
- ; purpose. It is provided "as is" without express or implied warranty.
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
- ; define some macros
- (defmacro defvar (sym &optional val)
- `(if (boundp ',sym) ,sym (setq ,sym ,val)))
- (defmacro defparameter (sym val)
- `(setq ,sym ,val))
- (defmacro defconstant (sym val)
- `(setq ,sym ,val))
-
- ; (makunbound sym) - make a symbol value be unbound
- (defun makunbound (sym) (setf (symbol-value sym) '*unbound*) sym)
-
- ; (fmakunbound sym) - make a symbol function be unbound
- (defun fmakunbound (sym) (setf (symbol-function sym) '*unbound*) sym)
-
- ; (mapcan fun list [ list ]...)
- (defmacro mapcan (&rest args) `(apply #'nconc (mapcar ,@args)))
-
- ; (mapcon fun list [ list ]...)
- (defmacro mapcon (&rest args) `(apply #'nconc (maplist ,@args)))
-
- ; (set-macro-character ch fun [ tflag ])
- (defun set-macro-character (ch fun &optional tflag)
- (setf (aref *readtable* (char-int ch))
- (cons (if tflag :tmacro :nmacro) fun))
- t)
-
- ; (get-macro-character ch)
- (defun get-macro-character (ch)
- (if (consp (aref *readtable* (char-int ch)))
- (cdr (aref *readtable* (char-int ch)))
- nil))
-
- ; (savefun fun) - save a function definition to a file
- (defmacro savefun (fun)
- `(let* ((fname (strcat (symbol-name ',fun) ".lsp"))
- (fval (get-lambda-expression (symbol-function ',fun)))
- (fp (open fname :direction :output)))
- (cond (fp (print (cons (if (eq (car fval) 'lambda)
- 'defun
- 'defmacro)
- (cons ',fun (cdr fval))) fp)
- (close fp)
- fname)
- (t nil))))
-
- ; (debug) - enable debug breaks
- (defun debug ()
- (setq *breakenable* t))
-
- ; (nodebug) - disable debug breaks
- (defun nodebug ()
- (setq *breakenable* nil))
-
- ; initialize to enable breaks but no trace back
- (setq *breakenable* t)
- (setq *tracenable* nil)
-