bug#24163: 25.1; ada mode and empty lines indentation

[Stefan Kangas <stefan@marxist.se>]

Hi Stephen,

sebastienbianti@free.fr writes:

> Open an Ada file (ada-mode should be loaded).
> In a section where the code is indented, tap return n times.
> You just made n empty indented lines while the first n-1 lines should'nt be
> indented (as all other programming modes do).
> There are some settings in the ada-mode customization panel, but none
> help fixing that, this is a bug of the ada-mode and has been for a long time.

Could you take a look at this bug report?

> In GNU Emacs 25.1.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.20.6)
>  of 2016-07-25 built on buildhw-08.phx2.fedoraproject.org
> Windowing system distributor 'Fedora Project', version 11.0.11804000
> Configured using:
>  'configure --build=x86_64-redhat-linux-gnu
>  --host=x86_64-redhat-linux-gnu --program-prefix=
>  --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
>  --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
>  --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
>  --libexecdir=/usr/libexec --localstatedir=/var
>  --sharedstatedir=/var/lib --mandir=/usr/share/man
>  --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg --with-png
>  --with-rsvg --with-tiff --with-xft --with-xpm --with-x-toolkit=gtk3
>  --with-gpm=no --with-xwidgets build_alias=x86_64-redhat-linux-gnu
>  host_alias=x86_64-redhat-linux-gnu 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g
>  -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
>  -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4
>  -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
>  -m64 -mtune=generic' LDFLAGS=-Wl,-z,relro
>  PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig'
>
> Configured features:
> XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GCONF GSETTINGS NOTIFY
> ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
> TOOLKIT_SCROLL_BARS GTK3 X11 XWIDGETS
>
> Important settings:
>   value of $LANG: fr_FR.UTF-8
>   value of $XMODIFIERS: @im=ibus
>   locale-coding-system: utf-8-unix
>
> Major mode: Ada
>
> Minor modes in effect:
>   shell-dirtrack-mode: t
>   tooltip-mode: t
>   global-eldoc-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
>   column-number-mode: t
>   line-number-mode: t
>   transient-mark-mode: t
>
> Recent messages:
> Wrote /home/fantomas/Documents/MOOCs/Algo/graph.ads
> Auto-saving...done
> Saving file /home/fantomas/Documents/MOOCs/Algo/strongly_connected_components.adb...
> Wrote /home/fantomas/Documents/MOOCs/Algo/strongly_connected_components.adb
> Compilation finished
> Auto-saving...done
> mwheel-scroll: End of buffer
> C-x C-g is undefined
> Undo! [2 times]
> (New file)
>
> Load-path shadows:
> /usr/share/emacs/site-lisp/site-start.d/maxima-modes hides /usr/share/emacs/site-lisp/maxima/site_start.d/maxima-modes
>
> Features:
> (shadow sort mail-extr emacsbug message idna format-spec rfc822 mml
> mml-sec password-cache epg epg-config gnus-util 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
> cl-extra help-mode cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles
> cc-align cc-engine cc-vars cc-defs cl-loaddefs pcase cl-lib shell
> pcomplete ada-mode advice easymenu compile comint ansi-color ring
> which-func imenu align find-file dired time-date mule-util tooltip eldoc
> electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win
> term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
> tabulated-list newcomment elisp-mode lisp-mode prog-mode register page
> menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
> syntax facemenu font-core frame 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 charscript case-table epa-hook jka-cmpr-hook help
> simple abbrev minibuffer cl-preloaded 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
> dbusbind inotify dynamic-setting system-font-setting font-render-setting
> xwidget-internal move-toolbar gtk x-toolkit x multi-tty
> make-network-process emacs)
>
> Memory information:
> ((conses 16 123380 4135)
>  (symbols 48 23278 0)
>  (miscs 40 160 406)
>  (strings 32 24552 4774)
>  (string-bytes 1 843810)
>  (vectors 16 16190)
>  (vector-slots 8 478330 5517)
>  (floats 8 186 311)
>  (intervals 56 865 0)
>  (buffers 976 23)
>  (heap 1024 30893 1168))