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-rw-r--r--lisp/comint.el16
1 files changed, 9 insertions, 7 deletions
diff --git a/lisp/comint.el b/lisp/comint.el
index ea06ab4ac5f..6840e4d6c5a 100644
--- a/lisp/comint.el
+++ b/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.