As others have said, you could use :set list which will, in combination with :set listchars=… display invisible characters. Now, there isn’t an explicit option which you can use to show whitespace, but in listchars, you could set a character to show for everything BUT whitespace. For example, mine looks like this :set listchars=eol:$,tab:>-,trail:~,extends:>,precedes:< so, … Read more
Java Editor Click Window » Preferences Expand Java » Code Style Click Formatter Click the Edit button Click the Indentation tab Under General Settings, set Tab policy to: Spaces only Click OK ad nauseam to apply the changes. [Note: If necessary save profile with a new name as the default profile cannot be overwritten.] Default … Read more
For whitespace on both sides, use str.strip: s = ” \t a string example\t ” s = s.strip() For whitespace on the right side, use str.rstrip: s = s.rstrip() For whitespace on the left side, use str.lstrip: s = s.lstrip() You can provide an argument to strip arbitrary characters to any of these functions, like … Read more
To convert existing tabs to spaces, press Edit->Blank Operations->TAB to Space. If in the future you want to enter spaces instead of tab when you press tab key: Go to Settings->Preferences…->Language (since version 7.1) or Settings->Preferences…->Tab Settings (previous versions) Check Replace by space (Optional) You can set the number of spaces to use in place … Read more
As has been pointed out in a couple of other answers, the preferred method now is NOT to use smartindent, but instead use the following (in your .vimrc): filetype plugin indent on ” show existing tab with 4 spaces width set tabstop=4 ” when indenting with ‘>’, use 4 spaces width set shiftwidth=4 ” On … Read more