dotfiles/nvim/init.vim

" Colors {{{
color molokai
let g:rehash256 = 1
" }}}

" Functions {{{
" Removes trailing spaces {{{
function TrimWhiteSpace()
	%s/\s\+$//
	''
endfunction
" }}}

" Jump to alternate file {{{
function JumpToAlternate()
	let l:curr_path = expand("%:h")
	let l:basename = expand("%:t")
	if stridx(basename, "test_") == 0
		let l:new_file = l:basename[5:strlen(l:basename)]
	else
		let l:new_file = "test_" . l:basename
	endif
	let l:new_file = l:curr_path . '/' . l:new_file		" WARN: Unixism
	let l:buffer = bufnr(l:new_file)
	if l:buffer == -1
		exe 'tabe ' .l:new_file
	else
		call win_gotoid(get(win_findbuf(l:buffer), 0))
	endif
endfunction
" }}}
" }}}

" Settings for all files {{{
set cursorline							" highlight the line in which the cursor is
set foldmethod=marker					" folding will use markers
set nowrap								" instead of wrapping the text to the next line, scroll left and right
set laststatus=2						" Always display the status line
set showtabline=2						" Always display the tab bar
let mapleader=" "						" Leader (special character for plugins) is Space
" }}}

" Mappings {{{
nnoremap - :Ex<CR>
nnoremap <silent> <leader>c :call TrimWhiteSpace()<CR>
nnoremap <leader>] <c-w>g<c-]>
" }}}

" Plugin configuration {{{
" Airline {{{
let g:airline_theme='minimalist'
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tabline#show_buffers = 0
let g:airline#extensions#tabline#show_close_button = 0
let g:airline#extensions#tabline#formatter = 'unique_tail'
" }}}

" Skim {{{
nmap <silent> <Leader><Space> :SK<CR>
" }}}
" }}}

" Filetype specific configurations {{{
" Vim files {{{
augroup vim
	au FileType vim setlocal noexpandtab		" use real tabs
	au FileType vim setlocal tabstop=4			" display tabs as 4 spaces
	au FileType vim setlocal shiftwidth=4		" Use 4 spaces when auto-indenting
augroup END
" }}}

" Python {{{
augroup python
	au FileType python setlocal number							" show line numbers
	au FileType python setlocal expandtab						" use spaces instead of tabs
	au FileType python setlocal tabstop=4						" number of spaces to use for indentation
	au FileType python setlocal shiftwidth=4					" number of spaces to use for auto-indentation
	au FileType python setlocal softtabstop=4					" when deleting characters, consider 4 spaces as a tab
	au FileType python setlocal textwidth=79					" max line size
	au FileType python setlocal colorcolumn=80					" put a margin indicator
	au FileType python au BufWritePre <buffer> %s/\s\+$//e		" When saving a Python file, remove tailing spaces
	au FileType python nmap <silent> <Leader>a :call JumpToAlternate()<CR>

	" Shortcut to add pylint disables
	au FileType python iab lint # pylint: disable
augroup END
" }}}

" CSV files {{{
augroup csv
	au FileType csv setlocal list				" Display special characters, like tabs (for TSV files)
augroup END
" }}}

" Rust {{{
" Apply `rustfmt` when saving the file. Because this is related to the syntax
" file and not something on the buffer itself, we can set it globally.
let g:rustfmt_autosave = 1
" }}}

" Markdown {{{
augroup markdown
	au FileType markdown setlocal iskeyword+=:	" this is kinda of a "hack" to make abbr accept ":" in them
	" This is a long abbreviation, but:
	" Most of it is simply text, with linebreaks (<CR>).
	" There is one thing to take care, though: <CR> is NOT <C-R>.
	" <C-R> will call the function (strftime), which will insert the current
	" date.
	au FileType markdown iab <silent> :header +++<CR>title = ""<CR>date = <C-R>=strftime('%Y-%m-%d')<CR><CR><CR>[taxonomies]<CR>tags = [""]<CR>+++
	" This abbreviation adds a modeline to set VIM to change the spell
	" lang to portuguese.
	au FileType markdown iab :pt <!--<CR>vim:spelllang=pt:<CR>-->

	au FileType markdown setlocal spell			" enable spell checking
	au FileType markdown setlocal textwidth=79	" max line size
	au FileType markdown setlocal expandtab		" use spaces instead of tabs
augroup END
" }}}

" Shell {{{
augroup shell
	au FileType sh setlocal tabstop=4			" display tabs as 4 spaces
	au FileType sh setlocal shiftwidth=4		" number of spaces to use for auto-indentation
	au FileType sh setlocal softtabstop=4		" when deleting characters, consider 4 spaces as a tab
augroup END
" }}}
" }}}