Insert four spaces instead of tab

Insert four spaces instead of tab

By : flemes
Date : November 15 2020, 06:54 AM
it helps some times Your code works fine but you simply put caret to the wrong place. Change the last line to:
code :
this.selectionStart = this.selectionEnd = start + spaces.length;

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How to make move-to-column with force option in Emacs insert spaces instead of tabs and spaces

How to make move-to-column with force option in Emacs insert spaces instead of tabs and spaces

By : Esteban Quiroz
Date : March 29 2020, 07:55 AM
hop of those help? You need to set indent-tabs-mode to nil, either using setq-default:
code :
(setq-default indent-tabs-mode nil)
(custom-set-variables '(indent-tabs-mode nil))
Insert text at caret - insert new lines and tab spaces

Insert text at caret - insert new lines and tab spaces

By : A. Malek
Date : March 29 2020, 07:55 AM
To fix this issue If I understand correctly, you're trying to add some whitespace based text formatting to the alt attribute. I don't think this is possible, it will be converted to spaces by the browser. You may add a data- attribute to handle this.
Insert 4 spaces instead of tab

Insert 4 spaces instead of tab

By : user1668760
Date : March 29 2020, 07:55 AM
Does that help Simulating clicks and keystrokes is considered a security risk. According to the W3C UI Events Working Draft:
code :
let tabSize = 2;
let spaces = '';
for (i = 0; i < tabSize; i++) {
  spaces += ' ';

document.getElementById('editor').addEventListener('keydown', preventTab);

function preventTab(event) {
  if (event.keyCode === 9) {
    let selection = window.getSelection();
    let range = selection.getRangeAt(0);
body {
  height: 100%;
  width: 100%;
  margin: 0;

#editor {
  width: 100%;
  height: 100%;
  font-family: monospace;
  white-space: pre;
<div id="editor" contenteditable=true></div>
How can I insert spaces or characters every "n" spaces while tailing a file?

How can I insert spaces or characters every "n" spaces while tailing a file?

By : user1887421
Date : March 29 2020, 07:55 AM
I wish this help you I am tailing a log file and want to make it more readable. , This code works with both GNU and BSD (macOS) versions of sed:
code :
sed -e ':a' -e 's/^\(.*:\([01]\{8\} \)*\)\([01]\{8\}\)\([^ ]\)/\1\3 \4/' -e 't a'
HH:MM:SS.ss CONTROL:00011100001110101010111000000000
HH:MM:SS.ss INDICATION:00000001110101001111010101011011
17:49:23.96 MODIFIED:0100010010101010101101010101010101001010101010111110100010011101
HH:MM:SS.ss CONTROL:00011100 00111010 10101110 00000000
HH:MM:SS.ss INDICATION:00000001 11010100 11110101 01011011
17:49:23.96 MODIFIED:01000100 10101010 10110101 01010101 01001010 10101011 11101000 10011101
s/^\(.*:\([01]\{8\} \)*\)\([01]\{8\}\)\([^ ]\)/\1\3 \4/
s/^\(.*:\([01]\{8\} \)*\)\([01]\{8\}\)\([^ ]\)/\1\3 \4/
t a
sed -f sed.script data
Python regex: insert spaces around characters and letters NOT surrounded by spaces

Python regex: insert spaces around characters and letters NOT surrounded by spaces

By : Omar
Date : March 29 2020, 07:55 AM
hope this fix your issue Instead of using negative lookbehinds and redundantly repeating the same substitution you may just capture a potential surrounding whitespaces \s* (zero or more) and make an ensured replacement.
code :
import re

message = 'Please calculate 1x20 +4 + 5-1 - 2/2 /4'
message = re.sub(r'\s*([<>x+*/-])\s*', ' \\1 ', message)
Please calculate 1 x 20 + 4 + 5 - 1 - 2 / 2 / 4
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