*no-output* mode

darcs-hash:81f0be3800ed94653deabc2048028985dbed1190

diff --git a/console.lisp b/console.lisp
index 96d2e81da4c8e3a7b38ac10f92164d31f36f8c53..7bf4f140c0b8dbd50ab6bd0f50ea061937a56ce7 100644 (file)
--- a/console.lisp
+++ b/console.lisp
@@ -9,12 +9,14 @@
   (:use :common-lisp :ltk :com.gigamonkeys.pathnames)\r
   (:export :terminal-in :terminal-out\r
    :run-console :console-running-p :textwidth :offset :style\r
-   :*text* :get-input :ltk-after :*repl-mode* :*hard-quit* :quit-lisp\r
+   :*text* :get-input :ltk-after :*repl-mode* :*no-output*\r
+   :*hard-quit* :quit-lisp\r
    :close-console :load-module :print-message))\r
 \r
 (in-package :if-console)\r
 \r
 (defparameter *repl-mode* nil)\r
+(defparameter *no-output* nil)\r
 (defparameter *console-on* nil)\r
 (defparameter *text* nil)\r
 (defparameter *inp* nil)\r
@@ -35,9 +37,10 @@
 \r
 (defmethod gray:stream-write-char ((s terminal-out) char)\r
   (unless (console-running-p) (error "No console is running"))\r
+  (unless *no-output*\r
   (if *repl-mode* (princ char)\r
       (append-text (first *console-on*) \r
-                  (make-string 1 :initial-element char))))\r
+                  (make-string 1 :initial-element char)))))\r
 \r
 (defmethod gray:stream-line-column ((s terminal-out))\r
   (offset s))\r
@@ -45,11 +48,12 @@
 (defmethod gray:stream-write-char-sequence ((s terminal-out) str\r
                                            &optional start end)\r
   (unless (console-running-p) (error "No console is running"))\r
+  (unless *no-output*\r
   (let ((toprint (subseq str (if start start 0) (if end end nil))))\r
     (if *repl-mode* (princ toprint)\r
        (progn\r
          (append-text (first *console-on*) toprint)\r
-         (see (first *console-on*) "insert")))))\r
+         (see (first *console-on*) "insert"))))))\r
 \r
 (defmethod gray:stream-read-char ((s terminal-in))\r
   (if *repl-mode* (read-char *standard-input*)\r
@@ -141,8 +145,8 @@
 (defun load-module (startup lib-loader)\r
   "Loads IF module into the interpreter"\r
   (multiple-value-bind (file dir) (pick-file)\r
-    (unless file (append-text *text* "Failed to load module.\r
-"))\r
+    (unless file (append-text *text* (format nil "Failed to load module.~%"))\r
+            (return-from load-module nil))\r
     (funcall lib-loader file dir)\r
     (funcall startup)))\r
 \r