Lots of tidying up.

[lisp] / sys-base.lisp

diff --git a/sys-base.lisp b/sys-base.lisp
index 47ef2fb..4f52ec8 100644 (file)
--- a/sys-base.lisp
+++ b/sys-base.lisp
@@ -1,7 +1,5 @@
 ;;; -*-lisp-*-
 ;;;
-;;; $Id$
-;;;
 ;;; Basic system-specific stuff
 ;;;
 ;;; (c) 2005 Mark Wooding
@@ -13,46 +11,70 @@
 ;;; it under the terms of the GNU General Public License as published by
 ;;; the Free Software Foundation; either version 2 of the License, or
 ;;; (at your option) any later version.
-;;; 
+;;;
 ;;; This program 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 General Public License for more details.
-;;; 
+;;;
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with this program; if not, write to the Free Software Foundation,
 ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-(defpackage #:mdw.runlisp
-  (:use #:common-lisp #:extensions)
-  (:export #:*lisp-interpreter* #:*command-line-strings*))
+(defpackage #:runlisp
+  (:use #:common-lisp)
+  (:export #:*command-line* #:exit)
+  #+clisp (:import-from #:ext #:exit))
+
 (defpackage #:mdw.sys-base
-  (:use #:common-lisp #:extensions #:mdw.runlisp)
-  (:export #:exit #:hard-exit #:*program-name* #:*command-line-strings*))
+  (:use #:common-lisp #:runlisp)
+  (:export #:exit #:hard-exit #:*program-name* #:*command-line*
+          #:set-command-line-arguments)
+  (:import-from #:runlisp #:*command-line* #:exit))
 (in-package #:mdw.sys-base)
 
-;;; --- This is currently all a bit CMUCL-specific ---
+(defvar *command-line*)
+(defvar *program-name*)
+
+(defun set-command-line-arguments ()
+  (setf *command-line*
+       (or (when (member :cl-launch *features*)
+             (let* ((cll-package (find-package :cl-launch))
+                    (name (funcall (intern "GETENV" cll-package)
+                                   "CL_LAUNCH_FILE"))
+                    (args (symbol-value (intern "*ARGUMENTS*"
+                                                cll-package))))
+               (if name
+                   (cons name args)
+                   args)))
+           #+cmu ext:*command-line-strings*
+           #+sbcl sb-ext:*posix-argv*
+           #+ecl (loop from i below (ext:argc) collect (ext:argv i))
+           #+clisp (loop with argv = (ext:argv)
+                         for i from 7 below (length argv)
+                         collect (aref argv i))
+           '("<unknown-lisp>" "--" "<unknown-script>")))
+  (setf *program-name* (pathname-name (car *command-line*))))
+(set-command-line-arguments)
 
-#+cmu
-(defun exit (&optional (code 0))
-  "Polite way to end a program.  If running in an interactive Lisp, just
-return to the top-level REPL."
-  (if *batch-mode*
-      (throw 'lisp::%end-of-the-world code)
-      (progn
-        (unless (zerop code)
-          (format t "~&Exiting unsuccessfully with code ~D.~%" code))
-        (abort))))
+#-clisp
+(unless (fboundp 'exit)
+  (defun exit (&optional (code 0))
+    "Polite way to end a program."
+    #+(or cmu ecl) (ext:quit code)
+    #+sbcl (sb-ext:exit :code code)
+    #-(or cmu ecl sbcl)
+    (progn
+      (unless (zerop code)
+       (format t "~&Exiting unsuccessfully with code ~D.~%" code))
+      (abort))))
 
-#+cmu
 (defun hard-exit (&optional (code 0))
   "Stops the program immediately in its tracks.  Does nothing else.  Use
-after fork, for example, to avoid flushing buffers."
+   after fork, for example, to avoid flushing buffers."
   (declare (type (unsigned-byte 32) code))
-  (unix::void-syscall ("_exit" c-call:int) code))
-
-#+cmu
-(defvar *program-name* (pathname-name (car *command-line-strings*))
-  "A plausible guess at the program's name, stripped of strange extensions.")
+  #+cmu (unix::void-syscall ("_exit" c-call:int) code)
+  #+sbcl (sb-ext:exit :code code :abort t)
+  #+(or clisp ecl) (ext:quit code))
 
 ;;;----- That's all, folks --------------------------------------------------