bug#54756: 28.1; faulty date interpretation

[Peter Dyballa]

Hello!

I think it's close to impossible to reproduce the bug when launching GNU Emacs 
with -Q, because dates in diary file are read and they must be interpreted the 
proper way, the European and natural way, as day - month - year (or in reverse):

%%(diary-anniversary  4  6 1862) Geburt von Karl Valentin in München-Au als 
Valentin Ludwig Fey %d Jahren
%%(diary-anniversary  4  6 2020) Tod von Rupert Neville Hine

Today all my versions of GNU Emacs 28.x report that it's the birth date of Karl 
Valentin and the death date of Rupert Hine:

        Sunrise 06 Uhr 53, sunset 20 Uhr 04 at Friedberg (13:11 hrs daylight)
        Geburt von Karl Valentin in München-Au als Valentin Ludwig Fey 160 
Jahren
        Tod von Rupert Neville Hine

The versions 27.x display that today's date (probably) was not much meaningful 
for the two men.


In GNU Emacs 28.1 (build 1, x86_64-apple-darwin21.4.0, Carbon Version 165 
AppKit 2113.4)
 of 2022-04-06 built on Kleines.fritz.box
Windowing system distributor 'Apple Inc.', version 12.3.1
System Description:  macOS 12.3.1

Configured using:
 'configure --prefix=/opt/local --disable-silent-rules --with-mac
 
--enable-mac-app=/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_aqua_emacs-mac-app/emacs-mac-app/work/emacs-28.1-mac-9.0
 --enable-mac-self-contained --without-dbus --without-gconf
 --without-libotf --without-m17n-flt --without-harfbuzz
 --without-imagemagick --without-rsvg --without-xaw3d --with-libgmp
 --with-gnutls --with-xml2 --with-json --with-lcms2
 '--enable-locallisppath=/Library/Application
 Support/Emacs/calendar28:/Library/Application Support/Emacs'
 --with-modules 'CFLAGS=-pipe -Os -fobjc-arc
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -arch
 x86_64' 'CPPFLAGS=-I/opt/local/include
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk'
 'LDFLAGS=-L/opt/local/lib -Wl,-headerpad_max_install_names
 -Wl,-syslibroot,/Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk
 -arch x86_64''

Configured features:
ACL GMP GNUTLS JSON LCMS2 LIBXML2 MODULES NOTIFY KQUEUE PDUMPER THREADS
TOOLKIT_SCROLL_BARS XIM ZLIB

Important settings:
  value of $LC_CTYPE: de_DE.UTF-8
  value of $LANG: de_DE.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Diary

Minor modes in effect:
  shell-dirtrack-mode: t
  midnight-mode: t
  display-time-mode: t
  desktop-save-mode: t
  mac-print-mode: t
  delete-selection-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mac-mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  view-mode: t

Load-path shadows:
/Library/Application Support/Emacs/htmlfontify hides 
/Applications/MacPorts/EmacsMac.app/Contents/Resources/lisp/htmlfontify

Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
rfc822 mml mml-sec epa epg rfc6068 epg-config gnus-util rmail
rmail-loaddefs text-property-search mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047
rfc2045 ietf-drums mm-util mail-prsvr mail-utils time-date jka-compr
info lunar shell pcomplete comint ansi-color ring auto-loads tex-site
yaml-mode derived view cal-julian diary-lib diary-loaddefs solar cal-dst
holidays hol-loaddefs midnight time cus-load ucs-normalize cl session
desktop frameset edmacro kmacro mac-print-mode easy-mmode htmlize
loadhist delsel mule-util cal-move cal-menu calendar cal-loaddefs
time-stamp advice package browse-url url url-proxy url-privacy
url-expand url-methods url-history url-cookie url-domsuf url-util
mailcap url-handlers url-parse auth-source cl-seq eieio eieio-core
cl-macs eieio-loaddefs password-cache json subr-x map url-vars seq
byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib iso-transl
tooltip eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode mwheel term/mac-win mac-win term/common-win
tool-bar dnd fontset image regexp-opt fringe tabulated-list replace
newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar
rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock
font-lock syntax font-core term/tty-colors frame minibuffer cl-generic
cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray
cl-preloaded nadvice button loaddefs faces cus-face macroexp files
window text-properties overlay sha1 md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote threads kqueue mac
lcms2 multi-tty make-network-process emacs)

Memory information:
((conses 16 224927 8721)
 (symbols 48 11545 1)
 (strings 32 41011 3040)
 (string-bytes 1 1497742)
 (vectors 16 40580)
 (vector-slots 8 515772 14288)
 (floats 8 517 484)
 (intervals 56 557 216)
 (buffers 992 16))



--
Greetings

  Pete

It isn't pollution that's harming the environment. It's the impurities in our 
air and water that are doing it.