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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1answer
26 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
323 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 ...
6
votes
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 ...
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2answers
107 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/...
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1answer
78 views

how to fixup line breaks?

I'm looking for a command that behaves similiar to fixup-whitespace, but I want it to also remove line breaks between objects around point.
3
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0answers
282 views

How to display and format leading spaces (spaces at the beginning of a line) with whitespace-mode? [closed]

I want to see all spaces at the beginning of a line as dots. Also tabs and line breaks. So I've set my init.el file as the following: (setq-default indent-tabs-mode nil) (setq whitespace-style '(...
2
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2answers
137 views

Automatically insert a space in some C expressions

The corporate rules about indention forces us to surround our if conditions with spaces like this (in a C and C++ codebase) : if (<space>foo == bar<space>) { } Is there any emacs tool ...
0
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0answers
85 views

What is causing `delete-trailing-whitespace`?

In some buffers (e.g. diff buffers) the trailing whitespace is essential to the format and must be preserved. What is causing Emacs to invoke delete-trailing-whitespace whenever I save the buffer? ...
1
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1answer
190 views

How to trim whitespace from the end of a multi-line string?

It seems subr-x's string-trim-right only operates on the last line. How to strip trailing spaces on all lines in a variable?
1
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1answer
2k views

Turn off whitespace-mode highlighting

I took the following from this site. (progn ;; Make whitespace-mode with very basic background coloring for whitespaces. ;; http://ergoemacs.org/emacs/whitespace-mode.html (setq whitespace-style ...
1
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1answer
42 views

How to call (line-end-position) that returns a value excluding trailing whitespace?

What is a good way to replace (line-end-position) with a function that doesn't include trailing whitespace?
6
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1answer
3k views

Is there a function for removing trailing spaces in a buffer?

Does emacs have a built in function for removing trailing spaces in a buffer? I want to remove trailing whitespace at the end of all the lines in a buffer.
3
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2answers
661 views

css-mode: use tabs and not spaces

How do I make it so tabs are used instead of spaces when TAB is pressed? I've tried setting indent-tabs-mode to t but no dice. On my other modes, such as php-mode and c-mode, tabs are inserted. CSS ...
2
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0answers
130 views

How can I define `search-whitespace-regexp` so it accepts a Unicode “no-break space”?

I'm writing a lot of Markdown for input to pandoc, so my files contain a lot of Unicode non-breaking spaces (U+00A0). I'd like those to search as whitespace with isearch-forward, so I tried adding ...
1
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0answers
195 views

How to get hungry-delete working in paredit-mode?

Using hungry-delete is really nice, see this Blog post. But with paredit activated, hungry-delete functions are not triggered. paredit defines <delete> as paredit-forward-delete and DEL as ...
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0answers
165 views

Possible to modify 'whitespace-display-mappings' at runtime?

Making changes to whitespace-display-mappings while emacs runs doesn't seem to do anything. (setq whitespace-display-mappings '( (space-mark 32 [183] [46]) ; middle-dot (tab-mark 9 [9654 9] [...
6
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0answers
582 views

Display tab characters as arrows of varying length

I would like to make tab characters ("\t") display as arrows of varying length, just like in editors such as Notepad++, gedit, Geany, etc. Here is an example with tab width set to 4 and space ...
1
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2answers
180 views

delete trailing new lines / whitespace, but not an image at eob

I have a buffer that will have either plain text or an image (text properties) near the end of the buffer. I would like to delete any new lines or whitespace at the end of the buffer. How can I do ...
1
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1answer
111 views

Match blank lines at end of file

How can I match – in, for example, a group of files from a Dired buffer – all files that have one or more blank lines at the end of the file? The specific need that prompts this question is to remove ...
0
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1answer
52 views

Changed indentation settings - how to reformat old code?

I changed my Emacs configuration including indentation settings -now when I open an old C++ file I can write code and it looks like this: int x(int z){ return z; } However, the old code in this ...
2
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0answers
44 views

Auto-indenting C code with tabs for blocks and spaces for other wrapping? [duplicate]

Is it possible to setup emacs to indent C code, with tabs for blocks { ... } and spaces with other wrapping (argument, for example)? Eg: <-->if (foo) { <--><-->function(a, b, <--...
0
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1answer
47 views

How to account for tabs in `hl-line-range-function`?

To avoid conflicts with highlighting indentation, I made the highlight line begin after the current indentation. This works well, except when tabs are used as leading white space. How could the my-...
7
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2answers
123 views

How to highlight preceeding space-indentation that isn't rounded to current width?

Is there a way to highlight (set the background color for example) the space before a line, when it's indentation isn't aligned to the current indentation-width? 4 spaces indentation for eg: fn ...
1
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0answers
73 views

auto-fill-mode fails in comment with empty second line

Consider the following comments: ;; This is the first line of a comment. ;; ;; This is the second line, which begins a paragraph. If I have ;;auto-fill-mode enabled, I lose the leading space! ;; ...
0
votes
1answer
187 views

modify tab length for eclim-java-format

So I'm trying to use eclim with spacemacs and I have this function called eclim-java-format which reformat the text as in eclipse. The problems is that it reformats tabs as tabs and not as space and ...
3
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2answers
240 views

Delete trailing white space from all projectile project files

Problem So the problem is pretty straight forward I'm just trying to get delete trailing spaces from all files in a projectile project. Here's what I've tried so far: (defun projectile-delete-...
1
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1answer
116 views

Ignoring newline changes in smerge-diff-mine-other

For me, smerge-diff-mine-other seems to ignore changes in the number of whitespace characters where there is whitespace, but I would sometimes like it to ignore all whitespace, including newlines - ...
2
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0answers
41 views

Are there any packages or configuration snippets for better whitespace traversal?

Whitespace traversal in Emacs is atrocious. By "traversal" I mean: Moving the point with C-<direction> Expanding a selection (with either a package or region mark) Deleting with C- or M- ...
2
votes
1answer
400 views

Difficulty with query-replace-regexp

I'm having trouble getting query-regex-replace to do what I want. I've read the docs several times and still can't figure it out. Here are a few examples of things I can't figure out how to do with ...
3
votes
1answer
99 views

Function to allow select a directory and run a command on its files, descending recursively?

I sometimes work on legacy code, and they have mixture of tabs and spaces. I use whitespace-cleanup function in whitespace.el to clean them up. But I have many files, so i want to run the command on ...
3
votes
3answers
1k views

Disable removal of trailing whitespace in Emacs

I'm using Emacs 25.1.50 (9.0) on OS X and am starting to get annoyed with the automatic removal of trailing whitespace. I have tried solutions from here, but to no avail as my write-file-functions and ...
1
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1answer
654 views

Virtual space for rectangular selections (at least)

In Vim there is the virtualedit variable which can be set so that Vim allows the cursor to move past the end of the line always or only when in visual block mode. Is it possible to configure Emacs to ...
1
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0answers
66 views

Increase spacing between physical lines only

How can I add spacing where there are linebreaks in the file, but not where a line is word-wrapped? This would be very useful for reading log files with long lines. Here's a mockup of what I'm after: ...
1
vote
3answers
98 views

How can I switch whitespace-mode enabled/disabled by key?

(defun switch-whitespace-mode () (interactive) (whitespace-mode) ) (global-set-key (kbd "<f6>") 'switch-whitespace-mode) Through the above configuration,I failed.
0
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1answer
660 views

tab and spaces shown aligned in emacs C++ mode, but not in other editors

In Emacs' C++ mode, I sometimes accidentally introduced a tab where I should use four whitespaces instead to create indentations. Adjacent lines with mixed uses of tabs and spaces for indentations are ...
6
votes
1answer
102 views

Whitespace highlighting

I've tried whitespace-mode, but I can't configure it the way I want. There are others, but some of them are obsolete and I don't want to try them all. I always indent via tabs and can't stand ...
6
votes
1answer
382 views

Retooling fill-paragraph to append trailing spaces

I'm using emacs as an external editor for mutt, and am hoping to get format=flowed messages to compose properly. The default behavior for fill-paragraph is to end lines without any whitespace, but the ...
1
vote
1answer
173 views

How to set the color for whitespace in isearch failures

I have my isearch failure face set like so: (custom-set-faces ... '(isearch-fail ((t (:background "#660c00")))) ... ) It works for the most part, highlighting text which doesn't match in that ...
2
votes
1answer
280 views

How to set whitespace-line-colum per mode?

I'm trying to have whitespace-line-column set to 80 in prog-mode and 100 in web-mode, etc. However when using hooks seems to get ignored, as is always set to 80. (require 'whitespace) (setq ...
0
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2answers
841 views

whitespace-mode doesn't show the space characters

I need to see the space characters but I can't set it for the life of me. I went to customize the Whitespace Display Mapping and this is what I found. Notice that the mapping for the space is set to ...
1
vote
2answers
246 views

Delete all spaces+newlines but the first

Given the following buffer: foo bar nee nope If I place point on the 2nd line and execute (just-one-space -1) the result will be: foo bar nee nope Is there a way to modify the behavior such ...
4
votes
1answer
213 views

distinguish inner consecutive spaces

I'm aware of and use whitespace-mode to great effect. I don't show a glyph/character for spaces because I think it's too noisy and unnecessary. I do highlight trailing spaces red which is great. ...
6
votes
1answer
619 views

Whitespace-mode tab mark disturb my indentation

I encounter this issue when i set whitespace-style to (face tabs trailing tab-mark) and turn on whitespace-mode. When whitespace-mode is turned off, everything looks well: When whitespace-mode is ...
1
vote
1answer
52 views

Space before \t is really inserted?

Launch Emacs with emacs -Q, insert a line contains only a \t (| represents the cursor): \t| M-x whitespace-mode, it should looks like (_ represents visual space): »________$ Insert 2 spaces at the ...
5
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2answers
4k views

How can I visualize trailing whitespace like this?

I've tried to configure whitespace-mode to do what I want but with no luck. I'm trying to achieve the following (see image).
3
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0answers
408 views

How to delete all white space during save except for final new line

I am aware that it is a good idea to have one blank line at the end of each file. I am also aware that extra white space in a file is bad. Currently in my .emacs file I have (add-hook 'before-save-...
5
votes
1answer
517 views

How do I make javascript-mode not turn all 8 spaces into tabs?

This is what javascript-mode generates with standard tabbing (I never hit the space key when making it). I'd like to have the files contain no tab characters. I can't seem to find any option in the ...
1
vote
1answer
59 views

Emacsql string query with space

My sqlite database has columns which consist of TEXT objects containing spaces. I'm new to both emacs and programming, and while I want to use emacsql for reasons, it's crucial that I can select on ...
7
votes
1answer
3k views

“Format Code” like in Eclipse

In Eclipse, I can hit CTRL + SHIFT + F which not only corrects the indentation but also whitespace (for example: c=a +b ; is corrected to c = a + b;) and the line length. I am looking for a similar ...
2
votes
1answer
556 views

Enable whitespace-mode with Prelude in C++-mode

With a vanilla install of Prelude and with C++-mode as my major mode, M-x whitespace-mode no longer shows whitespace characters. I get a message indicating that I am toggling whitespace-mode on and ...