unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: "rgb" <rbielaws@i1.net>
Subject: Re: show tabs and white space
Date: 14 Apr 2005 14:34:27 -0700	[thread overview]
Message-ID: <1113514467.635251.184530@l41g2000cwc.googlegroups.com> (raw)
In-Reply-To: d3mg5k$t4j$02$2@news.t-online.com

mgrd wrote:
> For editing a Makefile I need to display/show the tabs and white
spaces
> within it.
>
> Does anybody know how to obtain this?
>

If you want to be able to spot the difference between a tab
and a space character you could highlight tabs like this.

(defface tab-face '((t (:background "red")))
  "highlight tabs")
(font-lock-add-keywords 'tacl-mode '(("\t" 0 tab-face   prepend)))
;;                       ^^^ substitute your mode name here

;; spaces can be highlighted too if you really want.
(defface space-face '((t (:background "grey" )))
  "highlight whitespace")
(font-lock-add-keywords 'tacl-mode '((" "  0 space-face prepend)))
;;                       ^^^ substitute your mode name here

If you only want to see trailing whitespace I use this
(defun stw () "Toggles `show-trailing-whitespace' on/off"
  (interactive)
  (setq show-trailing-whitespace (not show-trailing-whitespace)))

  reply	other threads:[~2005-04-14 21:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-14 19:26 show tabs and white space mgrd
2005-04-14 21:34 ` rgb [this message]
2005-04-14 22:05   ` mgrd
2005-04-17 23:47 ` Miles Bader
     [not found] ` <mailman.1803.1113782366.2895.help-gnu-emacs@gnu.org>
2005-04-18 15:47   ` mgrd

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1113514467.635251.184530@l41g2000cwc.googlegroups.com \
    --to=rbielaws@i1.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).