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[Emacs-diffs] master 7768581 1/2: Make `next-error' output fewer message
From: |
Stephen Leake |
Subject: |
[Emacs-diffs] master 7768581 1/2: Make `next-error' output fewer messages about locus |
Date: |
Thu, 11 Apr 2019 17:00:32 -0400 (EDT) |
branch: master
commit 7768581172e11be52b1fcd8224f4594e126bbdb7
Author: Stephen Leake <address@hidden>
Commit: Stephen Leake <address@hidden>
Make `next-error' output fewer messages about locus
* lisp/simple.el (next-error-verbosity): New user variable.
(next-error, next-error-internal): Use it to control only outputting
locus message if locus changed.
---
etc/NEWS | 4 ++++
lisp/simple.el | 33 ++++++++++++++++++++++++---------
2 files changed, 28 insertions(+), 9 deletions(-)
diff --git a/etc/NEWS b/etc/NEWS
index 26c761a..3ad508a 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -303,6 +303,10 @@ and directory-local variables.
'with-connection-local-profiles'. No argument 'profiles' needed any
longer.
+---
+** next-error-verbosity controls when `next-error' outputs a message
+ about the error locus.
+
* Editing Changes in Emacs 27.1
diff --git a/lisp/simple.el b/lisp/simple.el
index 306df96..be84e48 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -110,6 +110,15 @@ If non-nil, the value is passed directly to `recenter'."
:type 'hook
:group 'next-error)
+(defcustom next-error-verbosity nil
+ "If nil, `next-error' always outputs the current error buffer.
+If non-nil, the message is output only when the error buffer
+changes."
+ :group 'next-error
+ :type 'boolean
+ :safe #'booleanp
+ :version "27.1")
+
(defvar next-error-highlight-timer nil)
(defvar next-error-overlay-arrow-position nil)
@@ -312,21 +321,27 @@ To control which errors are matched, customize the
variable
;; We know here that next-error-function is a valid symbol we can funcall
(with-current-buffer buffer
(funcall next-error-function (prefix-numeric-value arg) reset)
- (next-error-found buffer (current-buffer))
- (message "%s locus from %s"
- (cond (reset "First")
- ((eq (prefix-numeric-value arg) 0) "Current")
- ((< (prefix-numeric-value arg) 0) "Previous")
- (t "Next"))
- next-error-last-buffer)))))
+ (let ((prev next-error-last-buffer))
+ (next-error-found buffer (current-buffer))
+ (when (or (not next-error-verbosity)
+ (not (eq prev next-error-last-buffer)))
+ (message "%s locus from %s"
+ (cond (reset "First")
+ ((eq (prefix-numeric-value arg) 0) "Current")
+ ((< (prefix-numeric-value arg) 0) "Previous")
+ (t "Next"))
+ next-error-last-buffer)))))))
(defun next-error-internal ()
"Visit the source code corresponding to the `next-error' message at point."
(let ((buffer (current-buffer)))
;; We know here that next-error-function is a valid symbol we can funcall
(funcall next-error-function 0 nil)
- (next-error-found buffer (current-buffer))
- (message "Current locus from %s" next-error-last-buffer)))
+ (let ((prev next-error-last-buffer))
+ (next-error-found buffer (current-buffer))
+ (when (or (not next-error-verbosity)
+ (not (eq prev next-error-last-buffer)))
+ (message "Current locus from %s" next-error-last-buffer)))))
(defun next-error-found (&optional from-buffer to-buffer)
"Function to call when the next locus is found and displayed.
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