vim-macros

Useful vim macros.

Wrap/unwrap lines

map <silent> <F9> :set invwrap<CR>

Comment/uncomment lines

Add the following to $HOME/.vim/plugins/comment_toggle.vim to allow commenting/uncommenting via /<Shift+F7>:

" line comments based on file type
au FileType haskell,vhdl,ada,sql let b:comment_leader = '-- '
au FileType vim let b:comment_leader = '" '
au FileType c,cpp,h,java let b:comment_leader = '// '
au FileType sh,make,python,yaml let b:comment_leader = '# '
au FileType tex let b:comment_leader = '% '

" keyboard mapping
noremap <silent> <F7> :<C-B>sil <C-E>s/^/<C-R>=escape(b:comment_leader,'\/')<CR>/<CR>:noh<CR>
noremap <silent> <S-F7> :<C-B>sil <C-E>s/^\V<C-R>=escape(b:comment_leader,'\/')<CR>//e<CR>:noh<CR>

Based on: https://vim.fandom.com/wiki/Comment/UnComment_visually_selected_text

Copy/paste shortcuts

" - select all 
nmap <C-A> ggVG 
imap <C-A> <ESC><C-A>i 
" CTRL-X and SHIFT-Del are Cut 
vnoremap <C-X> "+x 
vnoremap <S-Del> "+x 
" CTRL-C and CTRL-Insert are Copy 
vnoremap <C-C> "+y 
vnoremap <C-Insert> "+y 
" CTRL-V and SHIFT-Insert are Paste 
map <C-V>       "+gP 
map <S-Insert>      "+gP 
cmap <C-V>      <C-R>+ 
cmap <S-Insert>     <C-R>+ 
command CWD cd %:p:h

Reversing lines in the buffer

com! Reverse :g/^/m0 | :nohlsearch
nnoremap = :Reverse<Cr>

Based on: https://superuser.com/questions/189947/how-do-i-reverse-selected-lines-order-in-vim#189956

Pretty print XML

com! FormatXML :set tabstop=2 | :%!python3 -c "import xml.dom.minidom, sys, os; dom = xml.dom.minidom.parse(sys.stdin); pretty_xml = dom.toprettyxml(); pretty_xml = os.linesep.join([s for s in pretty_xml.splitlines() if s.strip()]); print(pretty_xml)"
nnoremap = :FormatXML<Cr>

Based on: https://vim.fandom.com/wiki/Pretty-formatting_XML

Pretty print JSON

com! FormatJSON :%!python -c "import json, sys; obj = json.load(sys.stdin); print(json.dumps(obj, indent=2, sort_keys=True))"
nnoremap = :FormatJSON<Cr>

Based on: https://pascalprecht.github.io/posts/pretty-print-json-in-vim/

Swap files in single location

Instead of storing the .swp files alongside the file being viewed/edited, you can direct vim to just store them in a single location:

set directory=$HOME/.vim/swapfiles//

NB: You need to create the directory first with mkdir -p $HOME/.vim/swapfiles, as vim won't create it for you.

Based on: https://stackoverflow.com/a/21026618/4698227

Turning off backup files

set backupcopy=no

Some times needed when accessing remote files that are mounted through gvfs.

You can automate the command then by using this:

autocmd BufRead,BufNewFile /run/user/* set backupcopy=no

Avoid moving hash (#) to start of line

It can be very annoying when you are writing a shell/Python/etc script and inserting a hash (#) moves it to the start of the line. You can turn this off with the following instruction:

set cinkeys -=0#

Taken from: https://stackoverflow.com/a/61386926/4698227