(comint-snapshot-last-prompt): Bind `inhibit-read-only' to t to support

read-only prompts.
(comint-output-filter): Likewise.

lisp/ChangeLog

+2002-06-14  Juanma Barranquero  <lektu@terra.es>
+
+	* comint.el (comint-snapshot-last-prompt): Bind
+	`inhibit-read-only' to t to support read-only prompts.
+	(comint-output-filter): Likewise.
+
 2002-06-14  Miles Bader  <miles@gnu.org>
 
 	* subr.el (copy-tree): Use `nconc' and `nreverse' instead of `nreconc'.

lisp/comint.el

@@ -1535,9 +1535,10 @@ either globally or locally.")
 ;; prompt overlay.
 (defun comint-snapshot-last-prompt ()
   (when comint-last-prompt-overlay
-    (add-text-properties (overlay-start comint-last-prompt-overlay)
-			 (overlay-end comint-last-prompt-overlay)
-			 (overlay-properties comint-last-prompt-overlay))))
+    (let ((inhibit-read-only t))
+      (add-text-properties (overlay-start comint-last-prompt-overlay)
+                           (overlay-end comint-last-prompt-overlay)
+                           (overlay-properties comint-last-prompt-overlay)))))
 
 (defun comint-carriage-motion (string)
   "Handle carriage control characters in comint output.
@@ -1661,10 +1662,11 @@ This function should be in the list `comint-output-filter-functions'."
 	    (set-marker (process-mark process) (point))
 
 	    (unless comint-use-prompt-regexp-instead-of-fields
-	      (add-text-properties comint-last-output-start (point)
-				   '(rear-nonsticky t
-				     field output
-				     inhibit-line-move-field-capture t)))
+              (let ((inhibit-read-only t))
+                (add-text-properties comint-last-output-start (point)
+                                     '(rear-nonsticky t
+                                       field output
+                                       inhibit-line-move-field-capture t))))
 
 	    ;; Highlight the prompt, where we define `prompt' to mean
 	    ;; the most recent output that doesn't end with a newline.