From: Lars Ingebrigtseb <larsi@gnus.org>

* lisp/gnus/gnus-sum.el (gnus-summary-limit-to-score): Allow limit
to articles that have a score below the stated number, too
(bug#30356).

3 files changed, 21 insertions, 7 deletions

diff --git a/doc/misc/gnus.texi b/doc/misc/gnus.texi
index 1a2f6dd09f1..6c165424dd2 100644
--- a/doc/misc/gnus.texi
+++ b/doc/misc/gnus.texi
@@ -6672,7 +6672,8 @@ Limit the summary buffer to the unseen articles
 @kindex / v @r{(Summary)}
 @findex gnus-summary-limit-to-score
 Limit the summary buffer to articles that have a score at or above some
-score (@code{gnus-summary-limit-to-score}).
+score (@code{gnus-summary-limit-to-score}).  If given a prefix, below
+some score.
 
 @item / p
 @kindex / p @r{(Summary)}
diff --git a/etc/NEWS b/etc/NEWS
index 47c77d1a830..2847384a3a6 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -175,6 +175,11 @@ you don't need to set them in your early init file.
 
 *** New function 'package-activate-all'.
 
+** Gnus
+
+*** A prefix argument to 'gnus-summary-limit-to-score' will limit reverse
+Limit to articles with score at below.
+
 ** Ecomplete
 *** The ecomplete sorting has changed to a decay-based algorithm.
 This can be controlled by the new `ecomplete-sort-predicate' variable.
diff --git a/lisp/gnus/gnus-sum.el b/lisp/gnus/gnus-sum.el
index cb262406617..e1789cdd599 100644
--- a/lisp/gnus/gnus-sum.el
+++ b/lisp/gnus/gnus-sum.el
@@ -8563,14 +8563,22 @@ Returns how many articles were removed."
         (gnus-summary-limit articles))
     (gnus-summary-position-point)))
 
-(defun gnus-summary-limit-to-score (score)
-  "Limit to articles with score at or above SCORE."
-  (interactive "NLimit to articles with score of at least: ")
+(defun gnus-summary-limit-to-score (score &optional below)
+  "Limit to articles with score at or above SCORE.
+
+With a prefix argument, limit to articles with score at or below
+SCORE."
+  (interactive (list (string-to-number
+                      (read-string
+                       (format "Limit to articles with score of at %s: "
+                               (if current-prefix-arg "most" "least"))))))
   (let ((data gnus-newsgroup-data)
-        articles)
+        (compare (if (or below current-prefix-arg) #'<= #'>=))
+        articles)
     (while data
-      (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
-                score)
+      (when (funcall compare (gnus-summary-article-score
+                              (gnus-data-number (car data)))
+                     score)
         (push (gnus-data-number (car data)) articles))
       (setq data (cdr data)))
     (prog1