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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21 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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1answer
31 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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0answers
18 views

Remvoe the leading spaces of a line

I am reading the 24.indentation and learn the handy functions of back-to-indentation, 'split -line` and "tab-to-tab-stop", Suppose such a situation: The sentence with 2 spaces in the beginning ...
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2answers
35 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 ...
2
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0answers
37 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 ...
1
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1answer
57 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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0answers
25 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 ...
1
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1answer
168 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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2answers
29 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 ...
1
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1answer
51 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 |...
4
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1answer
107 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- ?
3
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1answer
562 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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0answers
46 views

Whitespace mode only works in fundamental mode but not others (like org, Clojure, etc)

My problem is - the whitespace mode is only showing dots for whitespaces in fundamental mode, however in other modes, like clojure, when whitespace mode is active - nothing happens. I expect the ...
1
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1answer
69 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, ...
0
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0answers
24 views

How to insert a new space before cursor?

I have links in Org mode that are at the beginning of the line and I struggle to add space before them in the insert mode. It would be great if there was a way to insert a space before the current ...
0
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1answer
31 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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7answers
3k views

Easiest way to check if current line is “empty” (ignoring whitespace)?

I just want to check if the current line is empty or not (if it contains only whitespace, then I still consider it empty). Here is my initial version: (defun strip-text-properties(txt) (set-text-...
1
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0answers
47 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$math$, ...
1
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1answer
71 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 ...
6
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2answers
1k 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" ...
0
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1answer
25 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:
7
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2answers
130 views

Is there a hook that runs for all read only buffers

I want to enable show-trailing-whitespace for editable file and disable show-trailing-whitespace for read only files. I've tried (defun my/read-only-whitespace () (setq-local show-trailing-...
2
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1answer
112 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 ...
0
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0answers
17 views

Stop indentation from altering pre-formatted text

.preformatted { white-space: pre-wrap; } <div class="preformatted"> THIS TEXT IS PREFORMATTED <= no spaces there, before pasting this text in this code ; It should render ...
1
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2answers
80 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....
7
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3answers
1k views

How to delete all whitespace up to the first non-whitespace character?

I'm looking for an emacs function that will delete all whitespace from the cursor position (including newlines) until the first non-whitespace character. For example, if my cursor is positioned at ...
1
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0answers
52 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 ...
2
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2answers
75 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 ...
0
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2answers
582 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 ...
0
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2answers
108 views

can I quickly clean up html files with emacs (prelude)

How do you clean up an html file? For example, this file has one too many empty line between the div tags. I would like cleanup to leave only one blank line there. <html> <body> &...
1
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4answers
748 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:
2
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3answers
458 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)
3
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1answer
64 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 ...
1
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1answer
529 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.
0
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1answer
350 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 ...
1
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2answers
204 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 ...
0
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1answer
83 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 ...
0
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1answer
102 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-...
2
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1answer
484 views

org-mode setting to preserve spacing in SRC code, with verbatim latex output to pdf

Like this post, when I indent within a SRC code block in org-mode, 8 consecutive spaces are converted to a tab. Moreover, when I export to LaTeX 8 consecutive spaces are converted to tabs in the ...
2
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1answer
297 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 '...
20
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3answers
3k views

Match two spaces with incremental search

When searching using: C-s SPC SPC Also matches single spaces. I want to match exactly two space.
0
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2answers
231 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 ...
0
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2answers
353 views

How to disable show-trailing-whitespace in emacs shell?

I have set show-trailing-whitespace as default in my .emacs file but I don't want it to work on shell and some specific buffer. I can disable it manually every time I open an emacs shell but I want ...
3
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1answer
106 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 ...
3
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3answers
175 views

magit-status does not open, when using (global-whitespace-mode 1)

This problem started happening today when I switched to my desktop computer after a couple months of using my laptop. I updated emacs to 25.3.1, updated all my packages, and downloaded my latest ....
3
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4answers
696 views

How can I stop emacs from highlighting whitespace?

After a recent update, my Perl files are rendered like this: Note that trailing spaces are shown in red and empty lines in yellow. This is happening despite my having the following in my ~/.emacs: (...
0
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1answer
25 views

Space and line-end indicators stay after switching off whitespace-mode

When I switch on whitespace-mode I get all the indicators and color for showing superfluous whitespace. So far so good. But when I switch off whitespace-mode the space indicator . and the line-end ...
5
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1answer
286 views

avoiding underlined spaces between two lines

It must be very simple to get rid of but I could not find something addressing the problem : I would like to avoid underlined spaces between two lines. The following screenshot illustrates the problem ...
5
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1answer
1k views

Too much whitespace on setting org-mode tags

If I create the following in an org-mode buffer: * one ** two ** three then move point to the line containing "two" and do C-c C-c spam <RET>, I get this: * one ** two ...
0
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2answers
101 views

Function that deletes redundant leading whitespaces of a region while maintaining indentation

Is there a Elisp function that deletes "redundant" leading whitespace of the region while maintaining relative indentation. This behavior is like textwrap.dedent in python. https://docs.python.org/2/...