Questions tagged [whitespace]

for questions about handling white or blank spaces. Besides space characters, Emacs is configured to handle the following as white space characters: tabs, indents, newlines that create blank space between text, either horizontally or vertically.

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17 views

diff-mode: how to highlight whitespace characters?

with emacs -Q, I can use whitespace-mode : But in diff-mode this is what I get: you can see the tabs/space/newlines aren't shown (highlighted). How can I make diff-mode highlight whitespace chars?
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1answer
17 views

Leaving only one space between words within a paragraph

I have read https://www.emacswiki.org/emacs/DeletingWhitespace but couldn't find a way to select a paragraph and remove extra white spaces. For instance: asd asdasd asdasd asdasdasd asdasda ...
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26 views

I want to make an alias to `org-babel-execute:emacs lisp`. the problem is with the space on `emacs lisp`

I'm using org-beamer exporter, and I would like to do the following: (defalias 'org-babel-execute:emacs-lisp lisp 'org-babel-execute:emacs lisp) My problem is 'org-babel-execute:emacs lisp has a ...
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1answer
55 views

How to search for words separated by arbitrary whitespace?

The question is general, but here's a specific case: In LaTeX source files, it doesn't matter if two words are separated by one space character, multiple space characters, or even a linebreak - in the ...
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1answer
31 views

Why Emacs creates multiples whitespaces after I create a comment and jump to a new line?

I am using Emacs, Paredit, Slime to work on Common Lisp (SBCL). When I create a comment such as: ; test It is placed as expected. But if I press return in order to create a new line below ;test this ...
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1answer
197 views

setq require-final-newline not working when setq-default does

I want all my files to end with only one newline, while trimming trailing whitespaces on regular lines. Like so : ($ is newline face) text$ $ last_line$ I use whitespace-cleanup in my init file, like ...
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1answer
52 views

How can I remove whitespace in HTML?

I would like to be able to go from this: <label for="exampleInputEmail1" class="form-label">Phone number</label> <input type="text" class="form-...
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1answer
45 views

What are these underlines shown for whitespace at the end of some lines?

The following screenshot shows Emacs 26.3 (GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.14) of 2020-03-26, modified by Debian) editing a Markdown file: Note that on some lines of ...
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1answer
39 views

whitespace-style "face" activates highlighting of quoted string in fundamental mode

After putting face to whitespace-style: (setq whitespace-style '(trailing tabs empty face)) (global-whitespace-mode 1) string enclosed in a double quote started to be highlighted by font-lock-string-...
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1answer
44 views

Spacemacs, Lisp, Pasting and the missing Space

When editing Lisp or Clojure in Spacemacs (Emacs with Evil) I find the pasting behavior anoying. Say I have yanked bar and want to paste it as a parameter to (foo) so I get (foo bar). The problem is, ...
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1answer
64 views

Hitting Return at start of line deletes leading whitespace. How to I prevent this?

If I have a line of text in a file with leading whitespace, and I move to the beginning of that line and hit enter, the whitespace is deleted such that the first non-whitespace character is the first ...
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0answers
157 views

How can I disable line numbers on empty lines?

I find it easier to visualize double line breaks if there's actually blank space between paragraphs. I never need to see the line number of a blank line, but I do really like seeing a line number when ...
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0answers
737 views

Make tabs behavior like in other IDEs

How can I force Emacs to use tab button and TAB character in "normal stupid way"[1], like in nano or VScode or JetBrain's IDEs. All I can find is smart-tabs package and indent-tabs-mode, but ...
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1answer
40 views

Make org-delete-char (C-d) delete extra space after deleted word

Hitting C-d (org-delete-char) in an Emacs org file deletes the word following the cursor. I would like to delete the extra space left also without having to use DEL. I.e. one action to delete word and ...
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1answer
53 views

can show-trailing-white-space be forced to ignore blank lines

I'm trying to use the flag show-trailing-white-space and it usually shows me what I want. I.e., I never want dangling white space at the end of a line containing text. However, between lines of text,...
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0answers
240 views

How to display only leading spaces in whitespace mode

I've been having trouble getting whitespace to visualize properly. Specifically for 'spaces' I'd like to only display leading spaces, but turning on space white space visualization includes all spaces,...
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0answers
22 views

All of a sudden i started seeing an insertion of a period after two spaces, even in programming mode files

I started noticing this after an update, every two spaces at end of a word/symbol places a period at the end. I am not sure how to debug this or where to look. any pointers appreciated.
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0answers
54 views

Preserving the space immediately after an org heading when deleting trailing whitespace

I use a hook to delete trailing whitespace on saving files: (use-package emacs :hook (before-save . delete-trailing-whitespace)) This works well in 99% of cases. However, if I am trying to create ...
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0answers
51 views

Add whitespace as indentation with `indent-region`

When using indent-region, emacs will indent code and leave bank spaces untouched. It seems to me that the majority prefer to delete whitespace. However I prefer white space indented with the code. An ...
2
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1answer
80 views

show white spaces only when region is selected

whitespace-mode will show the whitespace all the time in entire buffer, Is there the way to show whitespaces only when the region is selected. which is pretty cool to have, does there mode exist for ...
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1answer
226 views

Whitespace mode settings on per major mode basis

When I open the Linux Kernel code, my default indentation conflicts with the desired formatting of the Kernel. I use Emacs Prelude, so I added the settings from this link to my c-mode-common-hook. I ...
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2answers
500 views

How to add some space to the left of the line numbers in linum-mode?

When I enable linum-mode in the scratch buffer (and most other buffers I tried) there is no space to the left of the line numbers. Although when enable linum-mode in the .emacs configuration file, I ...
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1answer
340 views

Insert space but don't move point

Search didn't yield any success. Perhaps I'm using the wrong search terms... I'd like to insert a single space (just like when you hit SPC) but without changing point. I come up with an example (let |...
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2answers
70 views

Temporarily restrict editing to whitespace only

Sometimes I make whitespace cleanups to source code. I'd like to be certain that I do not accidentally introduce real code changes (let us assume that the programming language is one where removing ...
4
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1answer
372 views

Is [:space:] same as \s-?

Emacs 26.1 In regexp help https://www.emacswiki.org/emacs/RegularExpression has the next regexp: [:space:] a whitespace character Is this a same as: [ \t\r\n\v\f] and same as \s- ?
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1answer
1k views

How do you type a space character in Spacemacs?

I was researching editors and I ended up stumbling upon Spacemacs and the fact that it uses the spacebar instead of traditional modifier keys. The documentation claims that this lowers the user's risk ...
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1answer
48 views

automatic indentation with space like visual studio

Is there any package that covers indentation with space like visual studio? like, if(a==b) ==> if(a<space>==<space>b) for(int i=0;i<N;i++) ==> for(int i<space>=<space&...
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0answers
55 views

How can I split LaTeX inline math from preceeding or following sticked words?

I have this LaTeX code: Lorem $math$ ipsum $math$dolor sit consecteruer adipscing elit, sed do eiusmod tempor incidunt ut labore et dolore magna aliqua. $math$Ut $math$ enim ad minim veniam$math$, ...
2
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1answer
486 views

How to stop Emacs from deleting trailing whitespace?

By default, Emacs quietly deletes trailing whitespaces once the user moves on to the next line. To reproduce the issue in plain Emacs, do this: Start plain Emacs: emacs --no-init-file --no-site-file ...
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2answers
2k views

What's the idiomatic (or best) way to trim surrounding whitespace from a string?

I'm working with strings which may have any number of prefix and suffix spaces, tabs, newlines, etc. Currently I have this: (replace-regexp-in-string "^[^[:alnum:]]*\\(.*\\)[^[:alnum:]]*$" "\\1" ...
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1answer
29 views

Can't mark only spaces

I want to select by regexp only spaces. Here text: test-hello how-are again ok maybe good but-some not good I use regexp [:space:] but it's not work:
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1answer
394 views

delete-trailing-whitespace on save while always preserving location of cursor

I have the following before save hook defined which deletes all trailing whitespace and converts tabs to spaces (except in makefile mode since makefiles need tabs to work). This works great, however, ...
3
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1answer
189 views

Highlight missing double-space between sentences?

For a while, I've been using sentence-end-double-space: nil. Now I want to get back into the habit of using two spaces to separate sentences. It is the convention for GNU documentation, and it ...
1
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2answers
135 views

Avoiding typographic "rivers" with Emacs

When reading manuals in *info* mode, I found rivers somewhat distracting. For example, the left image is what I see on the screen, whereas the right one have some rivers annotated out. (see also Tex....
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0answers
99 views

How do I end an org capture template with whitespace?

I want to make an org capture template that ends in whitespace. Specifically, I want to make TODOs that are scheduled. From emacs -Q, I'm starting with this template: (cl-pushnew '("T" "TODO ...
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2answers
294 views

Convert tabs to spaces when copying text to external applications

I use tabs in C/C++ but want to convert those tabs to spaces when copying code that I'm going to paste into an external program. However, I want the original code to retain tabs. Additionally (if ...
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2answers
3k views

Confusion about space and tab characters in Emacs

I am confused by space (SPC) and TAB characters in Emacs. I am often using the default fundamental mode. When I select a region and indent the lines in the region by C-u 9 C-x TAB, I intend to ...
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4answers
3k views

How remove whitespaces in the beginning of lines?

Emacs 26.1 I has the next text: I need to remove all whitespaces in the beginning of the lines. Every line has different count of whitespaces. The result must be like this:
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3answers
1k views

emacs command to remove spaces until next parens

I'm looking for a command that deletes automatically deletes spaces up to the next parens: from: (do | (do-something) true) to: (do |(do-something) true)
4
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1answer
125 views

formatting of elisp file is different in emacs and other text editor

I'm having an issue with formatting in that when I'm in emacs, the formatting looks fine: but when the file is viewed with a different text editor, the spaces are different. this only occurs in the ...
2
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1answer
129 views

Can I get whitespace-mode to display a sequence of two leading spaces , specially?

Like this: I have been able to get whitespace-mode to display dots for leading spaces. But I want to specially display each sequence of 2 leading spaces, with maybe a vertical bar. Possible? ...
1
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1answer
1k views

How to remove empty lines of a selected region of code in Emacs?

Is there a way to remove blank lines from a region of code I select? I am asking because I copy/pasted code and it seems to have several blank lines I want to get rid off.
4
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1answer
4k views

How can I ask emacs to show me (visually) invisible characters like CR LF?

The title says it all: I want emacs to show (all, or only some, like CR LF) invisible characters in my buffer? (If it matters: I am using the latest emacs (25) on the latest debian testing) (I am ...
4
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2answers
541 views

Emacs equivalent to :set list in vim

I'm looking for a way to display hidden characters like newline and tab characters in emacs. I am NOT trying to convert the characters, just display them in the current buffer. In vi(m), I can do ...
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1answer
173 views

How to reveal tabs in the indentation in a cpp file?

My friend and I collaborate on a C++ project and we agree to use 4 whiltespaces for indentation. I am using Emacs and this is my indentation setting (setq-default c-basic-offset 4) By doing this, I ...
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1answer
339 views

Search forward for the FIRST space character and stop there

I recently upgraded from Windows Emacs 19.x to Windows 26.3.1 and have a problem. in the old version 19 if I did a search forward for a space, (C-s) it skipped forward to the FIRST space character ...
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1answer
704 views

Delete trailing whitespace when saving, except certain modes

How can I delete-trailing-whitespace when saving, except for certain modes? With this attempt, whitespace is deleted for all modes, including fundamental-mode, which I'm trying to avoid. (add-hook '...
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2answers
696 views

Highlight useless whitespace at end of file

How do I make Emacs highlight whitespace at EOF, eg. any whitespace after >?\n for PHP? I think the general rule would be: After the last non-whitespace character, accept one newline, then ...
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1answer
133 views

pressing return in paragraph-indent-text-mode deletes whitespace indenting beginning of paragraph

I'm currently using emacs 25.3 on Mac OSX installed using Homebrew, and without any modifications in my .emacs file or anywhere else. I think I may be fundamentally misunderstanding what paragraph-...
3
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1answer
133 views

List modified line numbers in a buffer

Emacs provides a fair few commands (delete-trailing-whitespace, for instance) that can be used to clean up buffers, but sometimes we cannot use them and risk compromising the version history of ...