From: grue <grue@mail.ru>
Date: Mon, 13 Feb 2006 20:47:49 +0000 (+0000)
Subject: *no-output* mode
X-Git-Url: https://jxself.org/git/?p=lifp.git;a=commitdiff_plain;h=bb182c7eda90fcb76d7bbf99b13a49d40c0a8847

*no-output* mode

darcs-hash:81f0be3800ed94653deabc2048028985dbed1190
---

diff --git a/console.lisp b/console.lisp
index 96d2e81..7bf4f14 100644
--- a/console.lisp
+++ b/console.lisp
@@ -9,12 +9,14 @@
   (:use :common-lisp :ltk :com.gigamonkeys.pathnames)
   (:export :terminal-in :terminal-out
    :run-console :console-running-p :textwidth :offset :style
-   :*text* :get-input :ltk-after :*repl-mode* :*hard-quit* :quit-lisp
+   :*text* :get-input :ltk-after :*repl-mode* :*no-output*
+   :*hard-quit* :quit-lisp
    :close-console :load-module :print-message))
 
 (in-package :if-console)
 
 (defparameter *repl-mode* nil)
+(defparameter *no-output* nil)
 (defparameter *console-on* nil)
 (defparameter *text* nil)
 (defparameter *inp* nil)
@@ -35,9 +37,10 @@
 
 (defmethod gray:stream-write-char ((s terminal-out) char)
   (unless (console-running-p) (error "No console is running"))
+  (unless *no-output*
   (if *repl-mode* (princ char)
       (append-text (first *console-on*) 
-		   (make-string 1 :initial-element char))))
+		   (make-string 1 :initial-element char)))))
 
 (defmethod gray:stream-line-column ((s terminal-out))
   (offset s))
@@ -45,11 +48,12 @@
 (defmethod gray:stream-write-char-sequence ((s terminal-out) str
 					    &optional start end)
   (unless (console-running-p) (error "No console is running"))
+  (unless *no-output*
   (let ((toprint (subseq str (if start start 0) (if end end nil))))
     (if *repl-mode* (princ toprint)
 	(progn
 	  (append-text (first *console-on*) toprint)
-	  (see (first *console-on*) "insert")))))
+	  (see (first *console-on*) "insert"))))))
 
 (defmethod gray:stream-read-char ((s terminal-in))
   (if *repl-mode* (read-char *standard-input*)
@@ -141,8 +145,8 @@
 (defun load-module (startup lib-loader)
   "Loads IF module into the interpreter"
   (multiple-value-bind (file dir) (pick-file)
-    (unless file (append-text *text* "Failed to load module.
-"))
+    (unless file (append-text *text* (format nil "Failed to load module.~%"))
+            (return-from load-module nil))
     (funcall lib-loader file dir)
     (funcall startup)))