Use sunterlib's INSPECT-EXCEPTION package for debugging. Fix a crash

when switching from result buffer to command buffer.

scheme/nuit-engine.scm

@@ -211,7 +211,19 @@
       
 ;;start the whole thing
 (define (nuit)
-  (run))
+  (with-inspecting-handler
+   8888
+   (lambda (condition)
+     (with-current-output-port*
+      (error-output-port)
+      (lambda ()
+	(display "starting remote handler for condition") 
+	(display condition)
+	(newline)
+	(display "Please connect to port 8888")
+	(newline)
+	#t)))
+   run))
 
 ;;handle input
 (define (run)
@@ -273,21 +285,20 @@
 	   
 	   ;;Ctrl-x o ->switch buffer
 	   ((= ch 111)
-	    (begin
-	      (if (focus-on-command-buffer?)
-		  (let ((key-message 
-			 (make-key-pressed-message active-command
-						   current-result-object
-						   97)))
-		    (focus-result-buffer!)
-		    (set! current-result-object (switch key-message))
-		    (paint-result-window))
-		  (begin
-		    (focus-command-buffer!)
-		    (paint-command-window-contents)
-		    (move-cursor command-buffer)))
-	      (set! c-x-pressed #f)
-	      (loop (wait-for-input))))
+	    (if (focus-on-command-buffer?)
+		(let ((key-message 
+		       (make-key-pressed-message active-command
+						 current-result-object
+						 97)))
+		  (focus-result-buffer!)
+		  (set! current-result-object (switch key-message))
+		  (paint-result-window))
+		(begin
+		  (focus-command-buffer!)
+		  (paint-command-window-contents)
+		  (move-cursor command-buffer)))
+	    (set! c-x-pressed #f)
+	    (loop (wait-for-input)))
 
 	   ;;C-x r -> redo
 	   ((= ch 114)
@@ -435,9 +446,7 @@
   (paint-command-window)
   (paint-command-window-contents)
   (paint-result-window)
-  
-  (set! command-buffer 
-	(move-cursor command-buffer)))
+  (move-cursor command-buffer))
 
 (define (wait-for-input)
   (noecho)
@@ -633,7 +642,7 @@
   (lambda (string)
     (let loop ((str string))
       (if (equal? str "")
-	  values
+	  (values)
 	  (let ((first-ch (string-ref str 0)))
 	    (begin
 	      (add-to-command-buffer (char->ascii first-ch))
@@ -656,7 +665,7 @@
 (define print-active-command-win
   (lambda (win width)
     (if (<= width 25)
-	values
+	(values)
 	(let ((active-command (string-append active-command 
 					     active-parameters)))
 	(if (> (string-length active-command) (- width 25))
@@ -698,7 +707,7 @@
     (let ((lines (get-right-result-lines)))
       (let loop ((pos 1))
 	(if (> pos result-lines)
-	    values
+	    (values)
 	    (let ((line (list-ref lines (- pos 1))))
 	      (begin
 		(if (not (standard-result-obj? current-result-object))
@@ -934,7 +943,7 @@
      ((key-pressed-message? message)
       (key-pressed-message-result-model message))
      ((restore-message? message)
-      values)
+      (values))
      ((selection-message? message)
       ""))))
 
@@ -991,7 +1000,7 @@
      ((key-pressed-message? message)
       (key-pressed-message-result-model message))
      ((restore-message? message)
-      values)
+      (values))
      ((selection-message? message)
       ""))))
 

scheme/nuit-packages.scm

@@ -10,6 +10,7 @@
 	handle
 	ncurses
 	srfi-6
+	inspect-exception
 	rt-modules)
   (files nuit-engine
 	 handle-fatal-error