bug#43270: 27.1; [PATCH] Enhance gnus-score-date to support scoring by article age

[Alex Bochannek]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Alex Bochannek <alex@bochannek.com> writes:
>
>> Looks like I inverted the logic for '<'. New patch attached.
>
> Thanks; applied.

Thanks, Lars! Below is another small patch to also support article age
in interactive scoring. I wasn't sure about the error handling, so feel
free to change that if there is a preferred style.

-- 
Alex.

diff --git a/lisp/gnus/gnus-score.el b/lisp/gnus/gnus-score.el
index 6a0e8ceb99..fce7b68db1 100644
--- a/lisp/gnus/gnus-score.el
+++ b/lisp/gnus/gnus-score.el
@@ -862,6 +862,18 @@ gnus-summary-score-entry
            (setq match (string-to-number match)))
       (set-text-properties 0 (length match) nil match))
 
+    ;; Modify match and type for article age scoring.
+    (if (string= "date" (nth 0 (assoc header gnus-header-index)))
+       (let ((age (string-to-number match)))
+         (if (or (< age 0)
+                 (string= "0" match))
+             (user-error "Article age must be a positive number"))
+         (setq match age
+               type (cond ((eq type 'after)
+                           '<)
+                          ((eq type 'before)
+                           '>)))))
+
     (unless (eq date 'now)
       ;; Add the score entry to the score file.
       (when (= score gnus-score-interactive-default-score)