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bug#7019: 23.2; [PATCH] fix bugs in diary/appt

From: Leo
Subject: bug#7019: 23.2; [PATCH] fix bugs in diary/appt
Date: Sun, 12 Sep 2010 11:01:19 +0100

Emacs failed to notice me some appointments (fortunately they are not
important). Here is the finding:

The doc string of diary-list-entries says the return list is sorted,
which is not the case. (add-hook 'diary-list-entries-hook
'diary-sort-entries) is not guaranteed to work unless that is the very
last function to run. Other functions in that hook can modify the
entries too, for example, diary-include-other-diary-files. The first
patch fixes these issues. Another fix will be to fix the doc string to
state that the returned list is not sorted.

appt-make-list replies on sorted diary entries to work. The second patch
explicitly sorts the list before processing.

>From 1b678c6c0601f500321cfb037467f6d393f0e7eb Mon Sep 17 00:00:00 2001
From: Leo <address@hidden>
Date: Sun, 12 Sep 2010 10:36:11 +0100
Subject: [PATCH 1/2] Respect the doc string and return sorted diary entries

 lisp/calendar/diary-lib.el |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lisp/calendar/diary-lib.el b/lisp/calendar/diary-lib.el
index 39354bd..3c748ac 100644
--- a/lisp/calendar/diary-lib.el
+++ b/lisp/calendar/diary-lib.el
@@ -187,7 +187,6 @@ you will probably also want to add 
`diary-mark-included-diary-files' to
      (setq diary-display-function 'diary-fancy-display)
      (add-hook 'diary-list-entries-hook 'diary-include-other-diary-files)
-     (add-hook 'diary-list-entries-hook 'diary-sort-entries)
 in your `.emacs' file to cause the fancy diary buffer to be displayed with
 diary entries from various included files, each day's entries sorted into
@@ -789,6 +788,7 @@ LIST-ONLY is non-nil, in which case it just returns the 
               (goto-char (point-min))
               (run-hooks 'diary-nongregorian-listing-hook
+             (diary-sort-entries)
               (unless list-only
                 (if (and diary-display-function
                          (listp diary-display-function))

>From 7d29e59fb61a8ef76e1c5c583a52cc25b32fba41 Mon Sep 17 00:00:00 2001
From: Leo <address@hidden>
Date: Sun, 12 Sep 2010 10:41:19 +0100
Subject: [PATCH 2/2] Make appt-make-list more robust

It depends on a list of sorted diary entries to work; so explicitly
sort the entries.
 lisp/calendar/appt.el |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/lisp/calendar/appt.el b/lisp/calendar/appt.el
index b590290..53469b0 100644
--- a/lisp/calendar/appt.el
+++ b/lisp/calendar/appt.el
@@ -572,7 +572,8 @@ appointment package (if it is not already active)."
               ;; looking for entries beginning with a time.  If the
               ;; entry begins with a time, add it to the
               ;; appt-time-msg-list.  Then sort the list.
-              (let ((entry-list diary-entries-list)
+              (let ((entry-list (sort (copy-sequence diary-entries-list)
+                                     'diary-entry-compare))
                 ;; Skip diary entries for dates before today.
                 (while (and entry-list


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