Customize the settings for the editor vim

The editor vim supports a bunch of useful features. You may activate them during a session or set them as your personal default using a text file ~/.vimrc in your home directory.

Please notice that comment lines in .vimrc are starting with " (instead of the usual #).

Enable syntax highlighting

syntax on

Show line numbers

set number

Show relative line numbers

The combination of this feature with line numbers is only available at version 7.4.x or newer.

if v:version > 703
 set relativenumber
endif

Show trailing whitespaces

:highlight ExtraWhitespace ctermbg=red guibg=red
:match ExtraWhitespace /\s\+$/

Show matching brackets

set showmatch

Show status line

set showmode

Jump to the last known valid cursor position automatically

if has("autocmd")
  autocmd BufReadPost *
    \ if line("'\"") > 0 && line("'\"") <= line("$") |
    \   exe "normal g`\"" |
    \ endif
endif

Use [F12] for removing trailing spaces in normal and insert mode

nmap <F12> :%s/\s\+$//e<CR>
imap <F12> <ESC><F12>