bug#22159: 25.1.50; 'tabs' in 'whitespace-style' doesn't work

bug#22159: 25.1.50; 'tabs' in 'whitespace-style' doesn't work

[Mark Karpov]

‘tabs’ in ‘whitespace-style’ doesn't work. Tabs are not visualized. Here
is relevant section of my config:

(setq whitespace-style '(face trailing tabs empty lines-tail indentation))

On the other hand ‘tab-mark’ works, it shows all occurrences of tab
characters, but I don't like what it looks like, I want bright
monolithic rectangles, that's how ‘tabs’ should work, I guess.



In GNU Emacs 25.1.50.2 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.5)
 of 2015-12-08
Repository revision: 6148555ee5a3d0139ae517803718b3e0357933c7
Windowing system distributor 'The X.Org Foundation', version 11.0.11800000
Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11

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

Major mode: ελ

Minor modes in effect:
  shell-dirtrack-mode: t
  diff-auto-refine-mode: t
  aggressive-indent-mode: t
  rainbow-delimiters-mode: t
  whitespace-mode: t
  hl-todo-mode: t
  flyspell-mode: t
  flycheck-color-mode-line-mode: t
  flycheck-mode: t
  yas-global-mode: t
  yas-minor-mode: t
  vimish-fold-global-mode: t
  vimish-fold-mode: t
  show-paren-mode: t
  rich-minority-mode: t
  minibuffer-electric-default-mode: t
  ido-vertical-mode: t
  ido-ubiquitous-mode: t
  ido-everywhere: t
  highlight-line-mode: t
  global-auto-revert-mode: t
  display-time-mode: t
  delete-selection-mode: t
  cyphejor-mode: t
  ace-popup-menu-mode: t
  smartparens-global-mode: t
  smartparens-mode: t
  modalka-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  auto-fill-function: do-auto-fill
  transient-mark-mode: t
  auto-fill-mode: 1

Recent messages:
[yas] Loading snippet files from /home/mark/.emacs.d/snippets/haskell-mode
Tab character
Truncate long lines enabled
Mark set
Modalka mode disabled in current buffer
Modalka mode enabled in current buffer
Saving file /home/mark/.emacs.d/mk/mk-minor-modes.el...
Wrote /home/mark/.emacs.d/mk/mk-minor-modes.el
Quit
<menu> C-g is undefined

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message format-spec rfc822 mml mml-sec
mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils
mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils browse-url
ace-window vc vc-dispatcher haskell-doc inf-haskell haskell-decl-scan
imenu shell pcomplete haskell haskell-completions haskell-load
haskell-commands highlight-uses-mode haskell-modules haskell-sandbox
haskell-repl haskell-debug haskell-interactive-mode
haskell-presentation-mode haskell-collapse haskell-navigate-imports
haskell-compile haskell-process haskell-session url-util json map
haskell-hoogle haskell-font-lock smartparens-haskell haskell-mode
haskell-indentation haskell-string haskell-sort-imports haskell-lexeme
haskell-align-imports haskell-compat haskell-complete-module noutline
outline flymake etags xref project compile comint dabbrev ansi-color
hl-line dired vc-git diff-mode bookmark pp aggressive-indent easy-mmode
rainbow-delimiters disp-table whitespace hl-todo flyspell ispell
flycheck-color-mode-line face-remap flycheck-haskell haskell-cabal
haskell-utils haskell-customize mk-visual smart-mode-line
solarized-dark-theme solarized mk-texinfo mk-tex mk-shakespeare
mk-prolog mk-org mk-markdown mk-man mk-magit mk-lisp mk-js mk-ibuffer
mk-html mk-haskell flycheck find-func rx mk-gnus mk-eshell mk-erc
mk-elisp mk-dired mk-clojure kill-or-bury-alive mk-calendar mk-c
mk-minor-modes common-lisp-snippets yasnippet cl whole-line-or-region
vimish-fold paren rich-minority minibuf-eldef ido-vertical-mode
ido-ubiquitous ido-completing-read+ cus-edit cus-start cus-load wid-edit
ido seq highlight-line autorevert filenotify time delsel cyphejor
ace-popup-menu smartparens-config smartparens thingatpt mk-global
modalka quail edmacro kmacro ace-link avy ring mk-python misc server
mk-utils subr-x f dash s ucs-normalize finder-inf tex-site fix-word
advice slime-autoloads info package epg-config url-handlers url-parse
auth-source cl-seq eieio byte-opt bytecomp byte-compile cl-extra cconv
eieio-core cl-macs gv gnus-util mm-util help-fns help-mode easymenu
cl-loaddefs pcase cl-lib mail-prsvr password-cache url-vars 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 obarray 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 move-toolbar gtk x-toolkit x
multi-tty make-network-process emacs)

Memory information:
((conses 16 431002 100916)
 (symbols 48 37213 0)
 (miscs 40 234 630)
 (strings 32 80306 51444)
 (string-bytes 1 2216640)
 (vectors 16 61597)
 (vector-slots 8 1822999 244455)
 (floats 8 440 566)
 (intervals 56 2109 326)
 (buffers 976 20)
 (heap 1024 48866 5471))

bug#22159: 25.1.50; 'tabs' in 'whitespace-style' doesn't work

[Eli Zaretskii]

> From: Mark Karpov <markkarpov@openmailbox.org>
> Date: Sun, 13 Dec 2015 14:43:46 +0600
> 
> 
> ‘tabs’ in ‘whitespace-style’ doesn't work. Tabs are not visualized. Here
> is relevant section of my config:
> 
> (setq whitespace-style '(face trailing tabs empty lines-tail indentation))

I cannot reproduce this: with the above configuration, I do see tabs
shown in a special face.  I used whitespace.el for showing them.

Could it be that all your tabs are inside indentation?  If so, the
face used for indentation whitespace overwrites the space for tabs.
You should look for tabs that are not inside indentation.

If the above doesn't help, perhaps try in "emacs -Q", maybe some of
your customizations get in the way.

bug#22159: 25.1.50; 'tabs' in 'whitespace-style' doesn't work

[Mark Karpov]

Eli Zaretskii <eliz@gnu.org> writes:

> I cannot reproduce this: with the above configuration, I do see tabs
> shown in a special face.  I used whitespace.el for showing them.
>
> Could it be that all your tabs are inside indentation?  If so, the
> face used for indentation whitespace overwrites the space for tabs.
> You should look for tabs that are not inside indentation.
>
> If the above doesn't help, perhaps try in "emacs -Q", maybe some of
> your customizations get in the way.

All right, when I set face ‘whitespace-tag’ to have non-transparent
background I can see tabs outside indentation. But I want to see those
inside indentation too, is it possible?

bug#22159: 25.1.50; 'tabs' in 'whitespace-style' doesn't work

[Dmitry Gutov]

On 12/13/2015 06:55 PM, Mark Karpov wrote:

> All right, when I set face ‘whitespace-tag’ to have non-transparent
> background I can see tabs outside indentation. But I want to see those
> inside indentation too, is it possible?

Try (setq whitespace-style '(face trailing tabs empty lines-tail))

bug#22159: 25.1.50; 'tabs' in 'whitespace-style' doesn't work

[Mark Karpov]

Dmitry Gutov <dgutov@yandex.ru> writes:

> Try (setq whitespace-style '(face trailing tabs empty lines-tail))

Finally, it works. Initial confusion arose because ‘whitespace-tab’ face
in ‘solarized-dark’ theme has ‘undefined’ (i.e. effectively transparent)
background. I've already opened an issue, so I hope it will be fixed
soon.

Thanks guys! Please close this, I've already forgotten how to do that.

bug#22159: 25.1.50; 'tabs' in 'whitespace-style' doesn't work

[Eli Zaretskii]

> From: Mark Karpov <markkarpov@openmailbox.org>
> Date: Sun, 13 Dec 2015 23:25:09 +0600
> Cc: 22159@debbugs.gnu.org
> 
> Thanks guys! Please close this, I've already forgotten how to do that.

Done.