bug#20345: 24.4; Ellipsis no longer expands abbreviated form

bug#20345: 24.4; Ellipsis no longer expands abbreviated form

[m.pontus]

=====

1. I launch emacs-24 -Q and insert following form in scratch buffer:

    (let ((print-length 2) (print-level 3))
      (pp load-history (current-buffer)))

2. I navigate to a new line and press C-x e

    (("/usr/share/emacs/24.4/lisp/emacs-lisp/pp.elc" pp-escape-newlines ...)
     ("/usr/share/emacs/24.4/lisp/calendar/time-date.elc"
      (defun . with-decoded-time-value)
      ...)
     ...)

3. I navigate to previous line and place cursor between "." and "..)"
4. I press <RET> and ellipsis splits in two instead of expanding abbreviation

=====




In GNU Emacs 24.4.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.27)
 of 2015-03-28 on gentoo
Windowing system distributor `The X.Org Foundation', version 11.0.11604000
Configured using:
 `configure --prefix=/usr --build=x86_64-pc-linux-gnu
 --host=x86_64-pc-linux-gnu --mandir=/usr/share/man
 --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc
 --localstatedir=/var/lib --disable-dependency-tracking
 --disable-silent-rules --libdir=/usr/lib64 --program-suffix=-emacs-24
 --infodir=/usr/share/info/emacs-24 --localstatedir=/var
 --enable-locallisppath=/etc/emacs:/usr/share/emacs/site-lisp
 --with-gameuser=:gamestat --without-compress-install
 --with-file-notification=inotify --enable-acl --with-dbus
 --without-gnutls --with-gpm --without-hesiod --without-kerberos
 --without-kerberos5 --with-xml2 --without-selinux --without-wide-int
 --with-zlib --with-sound=alsa --with-x --without-ns --without-gconf
 --without-gsettings --without-toolkit-scroll-bars --with-gif
 --with-jpeg --with-png --with-rsvg --with-tiff --with-xpm
 --with-imagemagick --with-xft --without-libotf --without-m17n-flt
 --with-x-toolkit=gtk2 GENTOO_PACKAGE=app-editors/emacs-24.4-r4
 'CFLAGS=-O2 -pipe' CPPFLAGS= 'LDFLAGS=-Wl,-O1 -Wl,--as-needed''

Important settings:
  value of $LANG: en_US.utf8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-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
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-y C-j C-p C-p C-p C-p C-p C-p C-p C-f C-f C-f <return> 
C-/ C-/ C-n <return> C-x C-e C-p C-f C-f <return> C-/ 
C-a C-/ C-a C-p C-p C-p C-p C-o C-/ C-p C-p C-SPC C-n 
C-n M-w C-x 3 M-2 M-x r e p o r t - e - b <tab> <r
eturn>

Recent messages:
End of buffer
"((\"/usr/share/emacs/24.4/lisp/emacs-lisp/pp.elc\" pp-escape-newlines ...)
 (\"/usr/share/emacs/24.4/lisp/calendar/time-date.elc\"
  (defun . with-decoded-time-value)
  ...)
 ...)
"
Undo!
Redo!
Undo!

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util help-fns mail-prsvr mail-utils pp time-date tooltip electric
uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar
dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode
prog-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
dbusbind inotify dynamic-setting font-render-setting move-toolbar gtk
x-toolkit x multi-tty emacs)

Memory information:
((conses 16 71676 4420)
 (symbols 48 17558 0)
 (miscs 40 45 138)
 (strings 32 9213 4272)
 (string-bytes 1 254530)
 (vectors 16 8943)
 (vector-slots 8 383831 17614)
 (floats 8 67 202)
 (intervals 56 285 22)
 (buffers 960 11)
 (heap 1024 13119 818))

bug#20344: 24.4; Ellipsis no longer expands abbreviated form

[Stefan Monnier]

forcemerge 20344 20345
severity 20344 wishlist
retitle 20344 print-length ellipsis should be expandable in more cases
thanks

> 1. I launch emacs-24 -Q and insert following form in scratch buffer:
>     (let ((print-length 2) (print-level 3))
>       (pp load-history (current-buffer)))

IIUC the "... expands" feature only applies to some specific cases, not
for text inserted via `pp'.  Admittedly, it'd be good for those "..." to
be expandable in many more cases (ideally everywhere).


        Stefan

bug#20345: 24.4; Ellipsis no longer expands abbreviated form

[Eli Zaretskii]

> From: m.pontus@gmail.com
> Date: Thu, 16 Apr 2015 05:34:29 +0300
> 
> 1. I launch emacs-24 -Q and insert following form in scratch buffer:
> 
>     (let ((print-length 2) (print-level 3))
>       (pp load-history (current-buffer)))
> 
> 2. I navigate to a new line and press C-x e
> 
>     (("/usr/share/emacs/24.4/lisp/emacs-lisp/pp.elc" pp-escape-newlines ...)
>      ("/usr/share/emacs/24.4/lisp/calendar/time-date.elc"
>       (defun . with-decoded-time-value)
>       ...)
>      ...)
> 
> 3. I navigate to previous line and place cursor between "." and "..)"
> 4. I press <RET> and ellipsis splits in two instead of expanding abbreviation

I don't think this ever worked as you expect.  I checked as far back
as Emacs 21.4, and they all behave like you describe.

The following does behave as you describe:

  . emacs -Q
  . type into the *scratch* buffer "exec-path" (without the quotes)
  . move after the 'h' in "exec-path" and type "C-j"

In the result, you can type RET or click mouse-2 on the ellipsis, and
it will behave as you expect.  But 'pp' doesn't, and seems like it
never did.  You will see in pp.el that it does nothing special to make
the ellipsis be sensitive to clicks or other keys.

I suspect that your memories are about the recipe I show above, not
about 'pp'.