Fix copying text properties in 'format'

* src/editfns.c (styled_format): Fix accounting for text
properties that come from the format string.  (Bug#46317)

* test/src/editfns-tests.el (format-properties): Add new tests for
bug#46317.

1 files changed, 21 insertions, 1 deletions

diff --git a/test/src/editfns-tests.el b/test/src/editfns-tests.el
index 64f9137865b..dcec971c12e 100644
--- a/test/src/editfns-tests.el
+++ b/test/src/editfns-tests.el
@@ -106,7 +106,27 @@
            #("foobar" 3 6 (face error))))
   (should (ert-equal-including-properties
            (format (concat "%s " (propertize "%s" 'face 'error)) "foo" "bar")
-           #("foo bar" 4 7 (face error)))))
+           #("foo bar" 4 7 (face error))))
+  ;; Bug #46317
+  (let ((s (propertize "X" 'prop "val")))
+    (should (ert-equal-including-properties
+             (format (concat "%3s/" s) 12)
+             #(" 12/X" 4 5 (prop "val"))))
+    (should (ert-equal-including-properties
+             (format (concat "%3S/" s) 12)
+             #(" 12/X" 4 5 (prop "val"))))
+    (should (ert-equal-including-properties
+             (format (concat "%3d/" s) 12)
+             #(" 12/X" 4 5 (prop "val"))))
+    (should (ert-equal-including-properties
+             (format (concat "%-3s/" s) 12)
+             #("12 /X" 4 5 (prop "val"))))
+    (should (ert-equal-including-properties
+             (format (concat "%-3S/" s) 12)
+             #("12 /X" 4 5 (prop "val"))))
+    (should (ert-equal-including-properties
+             (format (concat "%-3d/" s) 12)
+             #("12 /X" 4 5 (prop "val"))))))
 
 ;; Tests for bug#5131.
 (defun transpose-test-reverse-word (start end)