![]() ![]() The following only changes files with the extension. vimrc it will use "> \" instead of "> " to prepend wrapped lines.Ī user can also specify a particular filetype in an autocmd so that only that filetype will be changed when saving. ![]() " note trailing space at end of next line vimrc file, where trailing whitespace matters, is to change how. Sometimes, trailing whitespace is desired, or even essential in a file so be careful when implementing this autocmd. However, this is a potentially dangerous autocmd to have as it will always strip trailing whitespace from every file a user saves. Every time the user issues a :w command, Vim will automatically remove all trailing whitespace before saving. One way to make sure to remove all trailing whitespace in a file is to set an autocmd in your. However, this has minor side-effects, such as influencing undo history and sometimes changing scroll position.Īutomatically removing all trailing whitespace This is a similar function which similates the manual steps for removing the whitespace. Here, "unwanted" means any spaces before a tab character, or any space or tab at the end of a line.Įxecute a:firstline.",".a:lastline."substitute ///gec"Ĭommand -bar -nargs=? ShowSpaces call ShowSpaces()Ĭommand -bar -nargs=0 -range=% TrimSpaces ,call TrimSpaces() The following is a more elaborate procedure that can display or remove unwanted whitespace. See Highlighting whitespaces at end of line to display, rather than delete, unwanted whitespace.ĭisplay or remove unwanted whitespace with a script :nnoremap :let :%s/\s\+$//e :let :nohl :unlet _s Unlike before, the substitution text must be specified in order to use the required flag. The e flag is used in the substitute command so no error is shown if trailing whitespace is not found. The variable _s is used to save and restore the last search pattern register (so next time the user presses n they will continue their last search), and :nohl is used to switch off search highlighting (so trailing spaces will not be highlighted while the user types). With the following mapping a user can press F5 to delete all trailing whitespace. " Same thing (:le = :left = left-align given range % = all lines): The following deletes any leading whitespace at the beginning of each line. If no trailing whitespace is found no change occurs, and the e flag means no error is displayed. The following command deletes any trailing whitespace at the end of each line. In a search, \s finds whitespace (a space or a tab), and \+ finds one or more occurrences. Simple commands to remove unwanted whitespace 6.1 Remove space but save cursor position.3 Automatically removing all trailing whitespace.2 Display or remove unwanted whitespace with a script.1 Simple commands to remove unwanted whitespace.The default setting which includes internal is invalid for the version of vim installed. First, theĬatalina vim version did not drop support for iwhite. I dove deeper into the source of the problem on the version of vim provided by MacOSĬatalina and I was able to identify the problem more clearly and find a solution. git difftool set to vim -d (equivalent to vimdiff but hopefully less likely to cause future path issues).deleted vim alias in ~/.bashrc as /usr/local/bin already higher on my $PATH than /usr/bin.re-install MacVim ( brew cask zap macvim & brew cask install macvim) which created a symlink at /usr/local/bin/vim.upgrade to MacOS Catalina involved upgrade of system vim which dropped support for iwhite.git difftool set to vimdiff which pointed to system /usr/bin/vim and was unaffected by vim alias.vim aliased to /usr/bin/local/mvim in ~/.bashrc.Uninstall MacVim and reinstalling it caused it to re-install symlinks including /usr/local/bin/vim, a command that did not exist as such when I originally installed MacVim. So why was this causing me problems? I realized that I had been using an alias to invoke MacVim from the terminal but that my alias did not capture invocation of the form vimdiff which used the system vim. I don't use the system version of vim anyway, instead using MacVim installed using Homebrew Cask. I'm not going to dive into it too thoroughly, but if you confirm that Catalina is to blame, let me know in the comments. Most of my frustration is environment specific, but it does seem like MacOS Catalina bundled a different version of vim that removed support for the iwhite option. This error was driving me crazy, as when I ran git diff when there were many changed files, this error message would display for me to acknowledge between every file comparison.Īfter beating my head against the wall for a while, I finally figured out the issue. Had a new version of vim been released that deprecated this diffopt option? No, iwhite still appeared in the manual under :help diffopt. "Ignore whitespace with vimdiff if & diff set diffopt +=iwhite ![]()
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