" ┌────────────────────────────┐
" │ Everything in one big file │
" └────────────────────────────┘
"
" This should eventually be split into smaller individual files.

" Sessions
set sessionoptions=blank,buffers,curdir,folds,help,options,tabpages

" some conditional configs
if has('mouse')
	set mouse=a
endif

if &t_Co > 2 || has("gui_running")
	syntax on
	set hlsearch "Highlight search results
endif

if has("cryptv")
	if v:version >= 800
		set cm=blowfish2
	elseif v:version >= 703
		set cm=blowfish
	end
end

set colorcolumn=+1
hi ColorColumn ctermbg=magenta ctermfg=white guibg=magenta guifg=white

" set linespace=0
set scrolloff=6
set history=50 " keep 50 lines of command line history
set nonumber
" set relativenumber
set langmenu=en_UK
let $LANG = 'en_GB.UTF-8'
source $VIMRUNTIME/delmenu.vim
source $VIMRUNTIME/menu.vim
set guioptions-=r
set guioptions-=R
set guioptions-=l
set guioptions-=L
try
	set undodir=$HOME/.vimundo
	set undofile
catch
	echom "Undofile doesn't work :("
endtry
filetype plugin on
filetype indent on
set ruler
"set backspace=eol,start,indent
set backspace=start,indent,eol
set path+=** " Enable fuzzy search " STAAAAAARS
set wildmenu "Menu for tab completion
set enc=utf8

" Search Stuff
set ignorecase
set smartcase
noh
set incsearch
set lazyredraw
set magic "Who doesn't want to be a vim-wizard?
set showmatch

" Backup and file stuff
set nobackup
set nowb
" set noswapfile
set swapfile

set gdefault

set nowrap
set breakat=\ .,{
au BufEnter,BufRead * set linebreak
set display+=lastline
if v:version>=800
	set breakindent
	set breakindentopt=sbr
	au WinNew * set breakindentopt=sbr
	set showbreak=↳\ 
else
	set showbreak=↳\	
end
set listchars=eol:¶,tab:\│\ ,trail:·,nbsp:…,space:·
set list

" Allows setting vim options in other files
set modeline

set cmdheight=1
set timeoutlen=1200

" Allow indentation to work in XML files (and possibly others)
filetype plugin indent on

" Clipboard and Copy/Paste things
if has('unnamedplus') " Allow copying to and from OS clipboard
	set clipboard=unnamedplus
else
	if has("unix")
		autocmd VimLeave * call system("xsel -ib", getreg('*'))
	end
	set clipboard=unnamed
end
if has("unix")
	autocmd VimLeave * call system(
		\ 'echo -n '.shellescape(getreg('+')).' | xclip -selection clipboard'
		\ )
end

" === GENERIC ABBREVIATIONS ===

abbrev eshrug ¯\_(ツ)_/¯

" === GENERAL UTILITIES ===

" Runs a sequence of commands asynchronously
function! Async(array, ...)
	if len(a:array) > 0
		if has("nvim")
			call jobstart(a:array[0], {"on_exit": function("Async", [a:array[1:-1]])})
		else
			call job_start(a:array[0], {"out_io": "null", "in_io": "null", "err_io": "null", "exit_cb": function("Async", [a:array[1:-1]])})
		end
	end
endfun

function! RangeChooser()
	let temp = tempname()

	if has("gui_running")
		exec 'silent !xterm -e ranger --choosefiles=' . shellescape(temp).' '.expand("%:p:h")
	else
		exec 'silent !ranger --choosefiles=' . shellescape(temp).' '.expand("%:p:h")
	endif

	if !filereadable(temp)
		redraw!
		return
	endif

	let names = readfile(temp)

	if empty(names)
		redraw!
		return
	endif

	1,$argd
	for name in names
		exec 'argadd ' . fnameescape(name)
	endfor
	rewind
	redraw!
endfunction

command! -bar RangerChooser call RangeChooser()

function! MatchingLines(pattern)
	let list = []
	let pattern = a:pattern
	exec "g/".pattern."/ call add(list, expand('%').'('.line('.').') : '.matchstr(getline('.'), '".pattern."'))"
	return list
endfunc

function! s:mld_helper(list, pattern)
	" Helper function for MatchingLinesDict
	call add(a:list, {'filename': expand("%"), 'lnum': line("."), 'col':	match(getline("."), a:pattern)+1, 'text': matchstr(getline("."), a:pattern)})
endfunc
function! MatchingLinesDict(pattern)
	let list = []
	silent! exec "g/".a:pattern."/ call s:mld_helper(list, a:pattern)"
	return list
endfunc
com! -nargs=1 List call setloclist(0, MatchingLinesDict(<f-args>)) 
	\ | lopen

function! LocationAddLineCol(filename, lnum, text, col)
	call setloclist(0, [{'filename': a:filename, 'lnum': a:lnum, 'desc': a:text, 'col': a:col}], 'a')
endfunction

function! QuickfixAddLineCol(filename, lnum, text, col)
	call setqflist([{'filename': a:filename, 'lnum': a:lnum, 'desc': a:text, 'col': a:col}], 'a')
endfunction

function! LocationAddLine(filename, lnum, text)
	call setloclist(0, [{'filename': a:filename, 'lnum': a:lnum, 'desc': a:text}], 'a')
endfunction

function! QuickfixAddLine(filename, lnum, text)
	call setqflist([{'filename': a:filename, 'lnum': a:lnum, 'desc': a:text}], 'a')
endfunction

" Original implementation: https://stackoverflow.com/a/6271254/4984564
function! VisualSelection()
	if mode()=="v"
		let [line_start, column_start] = getpos("v")[1:2]
		let [line_end, column_end] = getpos(".")[1:2]
	else
		let [line_start, column_start] = getpos("'<")[1:2]
		let [line_end, column_end] = getpos("'>")[1:2]
	end
	if (line2byte(line_start)+column_start) > (line2byte(line_end)+column_end)
		let [line_start, column_start, line_end, column_end] =
		\		[line_end, column_end, line_start, column_start]
	end
	let lines = getline(line_start, line_end)
	if len(lines) == 0
			return ''
	endif
	let lines[-1] = lines[-1][: column_end - 1]
	let lines[0] = lines[0][column_start - 1:]
	return join(lines, "\n")
endfunction

function! StringReverse(str)
	return join(reverse(split(str, ".\\zs")), "")
endfunc

function! ShiftMarker(m,n)
	let [bufn,line,column,offset]=getpos("'".a:m)
	call setpos("'".a:m,[bufn,line,column+(a:n),offset])
endfunc

function! ShiftSelection(n)
	let [bufn_a,line_a,column_a,offset_a]=getpos("'>")
	let [bufn_b,line_b,column_b,offset_b]=getpos("'<")
	call setpos("'>",[bufn_a,line_a,column_a+(a:n),offset_a])
	call setpos("'<",[bufn_b,line_b,column_b+(a:n),offset_b])
endfunc

" Auto-close quickfix list when leaving it
function! s:autobd()
	au! WinLeave <buffer> bd!
endfun

" === GENERAL COMMANDS ===

" General Purpose
command! Modifiable setl modifiable!
command! -range=% Count echo(<line2>-<line1>+1)
command! Closeall bufdo bdelete
command! Context bufdo bdelete | e .
command! Kontext Context
command! -range=% Numbers <line1>,<line2>
			\ s/^/\=printf("%0".float2nr(ceil(log10(<line2>+1)))."i", line("."))."\t"/
			\ | noh

command! L lopen | set number | set norelativenumber
command! LAddLine call LocationAddLine(expand("%"), line("."), getline("."))
command! QAddLine call QuickfixAddLine(expand("%"), line("."), getline("."))
command! LAddCursor call LocationAddLineCol(expand("%"), line("."), getline("."), col("."))
command! QAddCursor call QuickfixAddLineCol(expand("%"), line("."), getline("."), col("."))

command! Fixmes call setloclist(0, MatchingLinesDict("\\c\\<fixme.*"))
command! Todos call setloclist(0, MatchingLinesDict("\\c\\<todo.*"))

command! -nargs=1 LFind call setloclist(0, MatchingLinesDict(<args>))
command! -nargs=1 QFind call setqflist(MatchingLinesDict(<args>))

function! s:hex(...)
	if !(a:000 == [""])
		let l:args = map(copy(a:000), {i,val -> "".val})
	else
		let l:args = []
	end
	if &filetype != "xxd"
		silent exec '%!xxd '.join(l:args, "  ")
		set filetype=xxd
		nnoremap <buffer> i i<ins>
		echo "A witch turned your file into a hexadecimal toad!"
	else
		nunmap <buffer> i
		silent exec '%!xxd -r '.join(l:args, "	")
		filetype detect
		echo "The witch turned your file back into binary data"
	end
endfunction
command! -nargs=* Hex call <sid>hex(<q-args>)

command! -range=% LuaCompile <line1>,<line2>w !luac -l -p -

" === FILE STUFF ===

function! s:unsaved()
	if &mod
		let l:filetype = &filetype
		diffthis
		below new
		set modifiable
		r #
		1,1del
		diffthis
		au BufUnload <buffer> diffoff!
		let &filetype = l:filetype
		set nomodifiable
		set buftype=nofile
		set bufhidden=delete
		silent exec "file =".expand("#:t")."@".strftime("%H:%M")
		exec "normal \<C-w>k"
		set foldlevel=999
	else
		echom "No changes to show :)"
	end
endfun
command! Unsaved call <sid>unsaved()

function! s:snapshot()
	let l:filetype = &filetype
	let l:clipboard = @"
	let l:pos = getpos(".")

	silent 0,$yank "
	below new
	set modifiable
	silent put "
	1,1del
	let &filetype = l:filetype
	set nomodifiable
	set buftype=nofile
	set bufhidden=hide
	call setpos(".", l:pos)
	silent exec "file ¬".expand("#:t")."@".strftime("%H:%M")

	exec "normal \<C-w>k"
	set foldlevel=999

	let @" = l:clipboard
endfun
command! Snapshot call <sid>snapshot()

command! Todo call matchadd('Todo', '^[ 	-]*\[ \?\].*$') |
			\ call matchadd('Comment', '^[ 	-]*\[x\].*$') |
			\ call matchadd('Comment', '^[ 	-]*\[-\].*$') |
			\ call matchadd('Error', '^[ 	-]*\[!\].*$')
command! -nargs=? Tempfile exec 'new '.tempname()  | set filetype=<args> | au BufDelete <buffer> call delete(expand('%'))

"        ┌──────────────────────────┐
"        ├─┬──────────────────────┐ │
"        ├─┤ GENERAL KEY MAPPINGS ├─┤
"        │ └──────────────────────┴─┤
"        └──────────────────────────┘

nnoremap <leader><space> :NeoTreeFloat<CR>
nnoremap <leader><tab> :NeoTreeFocus<CR>

onoremap al :<C-U>normal! 0vg$h<CR>
onoremap il :<C-U>normal! ^vg_<CR>

vnoremap <leader>p ""s<C-R>+<esc>

map S :shell<CR>

nnoremap gn :tab split<CR>

nnoremap val 0vg$h
nnoremap vil ^vg_

" --- ! as in ranger ---
nnoremap ! :!

" --- Telescope ---
nnoremap <leader>! :Telescope diagnostics<CR>
nnoremap <leader>? :Telescope keymaps<CR>
nnoremap <leader>f :Telescope find_files<CR>
nnoremap <leader>b :Telescope buffers<CR>
nnoremap <leader>ls :Telescope lsp_document_symbols<CR>
nnoremap <leader>lS :Telescope lsp_workspace_symbols<CR>
nnoremap <leader>ll :Telescope lsp_
nnoremap <leader>C :Telescope colorscheme<CR>

" --- F5 ---
nnoremap <F5> :nnoremap <buffer> <F5> :<lt>CR><left><left><left><left>
nnoremap <leader><F5> :nnoremap <F5> :<lt>CR><left><left><left><left>

let mapleader = "\\"

" --- Moving Between Buffers ---
nnoremap <leader>n :next<CR>:args<CR>
nnoremap <leader>p :previous<CR>:args<CR>

let g:jmp_dist = 8
exec 'noremap gj '.g:jmp_dist.'j'
exec 'noremap gk '.g:jmp_dist.'k'

nnoremap <C-k> ddkP
nnoremap <C-j> ddp
vnoremap <C-k> :m '<-2<CR>gv
vnoremap <C-j> :m '>+1<CR>gv
nnoremap <C-h> b
nnoremap <C-l> e

" --- Marks ---
nnoremap <leader>m :marks abcdefghijklmnopqrstuvwxyz<CR>
nnoremap <leader>M :marks ABCDEFGHIJKLMNOPQRSTUVWXYZ<CR>

" --- modes ---
nnoremap <ins> <ins><ins>

" --- /dev/null ---
noremap <leader>d "_d
noremap <leader>d "_d
noremap <del> "_x
noremap <S-del> 0"_x$

" --- Numbers ---
nnoremap <leader>- <C-x>
nnoremap <leader>= <C-a>

" --- Text ---
nnoremap U ~h

" --- CLIPBOARD ---
nnoremap Y y$

" --- MOONSCRIPT ---

let g:mooncompile = "!moonc ".expand("<sfile>:p:h")."/lua"
command! Mooncompile silent exec g:mooncompile

" --- OTHER ---
" Don't exit visual mode when "shifting"
vnoremap < <gv
vnoremap > >gv

nnoremap <S-l> :L<cr>
noremap <space> :
nnoremap <C-space> @:
inoremap <C-space> 
noremap Q @q
nnoremap <S-space> gQ
" This part is just supposed to make saving as inconvenient as possible
" because I have a tendency to just save stuff pretty much as soon as I start
" typing because I'm bored and possibly a bit paranoid.
function! s:saveprompt()
	if &swapfile
		echo "You have swap files enabled, stop in-between-saving all the time!"
	end
	if input("Type 'save' to save: ") ==? "save"
		write
		echo "File saved, but was it really necessary?"
	else
		echo "Calm the fuck down man!"
	end
endfun
noremap <C-s> :call <sid>saveprompt()<CR>
nnoremap <C-n> :bnext<CR>
nnoremap <C-p> :bprevious<CR>
nnoremap <leader>j :lnext \| normal zt<cr>
nnoremap <leader>k :lNext \| normal zt<cr>
nnoremap <leader><leader>j :cnext \| normal zt<cr>
nnoremap <leader><leader>k :cNext \| normal zt<cr>
nnoremap <C-i> Bi <esc>i
nnoremap <C-a> Ea <esc>a
" This one does nothing, but I'm adding it to remember not to remap the tab key
nnoremap <tab> <C-S-I>
nnoremap <S-tab> <C-S-O>
nnoremap <C-e> ge
nnoremap <C-E> gE
com! SetWD :cd %:p:h
com! SetLWD :lcd %:p:h
com! Trailing let _s=@/ | %s/\v(\\@<!\s)+$//ge | let @/=_s
nnoremap <C-d> :copy .<CR>
vnoremap <C-d> :copy '><CR>
nnoremap dcx 0d$
nnoremap <expr> R ":%s/\\<\\(".expand("<cword>")."\\)\\>/"
vnoremap <expr> R ":<C-u>%s/".VisualSelection()."/"
" Put in new line with indentation
nnoremap ]p :let [content, type]=
		\[getreg(v:register), getregtype(v:register)] \|
		\call setreg(v:register, content, "V")<CR>]p
		\:call setreg(v:register, content, type)<CR>
nnoremap [p :let [content, type]=
		\[getreg(v:register), getregtype(v:register)] \|
		\call setreg(v:register, content, "V")<CR>[p
		\:call setreg(v:register, content, type)<CR>

" Empty Lines
nnoremap <leader><CR> o0
nnoremap <leader><leader><CR> O0

" === GENERAL ABBREVIATIONS ===
cabbr rcpath fnamemodify($MYVIMRC, ":p:h")

cabbr <expr> %% expand('%:p:h')

digraph <3 9829
digraph ue 252
digraph UE 220
digraph ae 228
digraph AE 196
digraph oe 246
digraph OE 214
digraph ss 223

" === GENERAL AUTOCOMMANDS ===

command! HLProgress syntax match Comment /\_.*\ze\n.*\%#/

" vnoremap <leader>g :<C-u>call <SID>GrepOperator(visualmode())<CR>
" nnoremap <leader>g :set operatorfunc=<SID>GrepOperator<CR>g@
" function! s:GrepOperator(type)
" 	let reg1 = @@
" 	if a:type==# 'v'
" 		execute "normal! `<v`>y"
" 	elseif a:type==# 'char'
" 		execute "normal! `[y`]"
" 	else
" 		return
" 	end
" 	echom "vimgrep! /\\M".escape(@@, "\\")."/ *"
" 	silent! execute "vimgrep /\\M".escape(@@, "\\")."/j *"
" 	let @@ = reg1
" 	copen
" 	set nowrap
" endfunction

" Window Height stuff
command! EqualH call Equal()
command! -nargs=1 WinHeight call SetWinMinHeight(<f-args>)
function! Equal()
	set winminheight=0
	set winheight=1
	set equalalways!
	set equalalways!
endfunc
function! SetWinMinHeight(num)
	execute "set winminheight=".0
	if a:num>=0
		execute "set winheight=".(a:num+1)
		execute "set winminheight=".a:num
	endif
	execute "set winheight=".9999
endfunc
" call SetWinMinHeight(2)
function! AddWinMinHeight(num)
	let a:new = &winminheight + a:num
	call SetWinMinHeight(a:new)
	set winminheight?
endfunc

" Window Width Stuff
command! EqualW silent! call EqualW()
command! -nargs=1 WinWidth call SetWinMinWidth(<f-args>)
function! EqualW()
	set winminwidth=0
	set winwidth=1
	set equalalways!
	set equalalways!
endfunc
function! SetWinMinWidth(num)
	execute "set winminwidth=".0
	if a:num>=0
		execute "set winwidth=".(a:num+1)
		execute "set winminwidth=".a:num
	endif
	execute "set winwidth=".9999
endfunc
function! AddWinMinWidth(num)
	let a:new = &winminwidth + a:num
	call SetWinMinWidth(a:new)
	set winminwidth?
endfunc


" === GENERIC AUTOCOMMANDS ===

if has("autocmd")
	" Enable file type detection.
	" Use the default filetype settings, so that mail gets 'tw' set to 72,
	" 'cindent' is on in C files, etc.
	" Also load indent files, to automatically do language-dependent indenting.
	filetype plugin indent on

	" When editing a file, always jump to the last known cursor position.
	" Don't do it when the position is invalid or when inside an event handler
	" (happens when dropping a file on gvim).
	autocmd BufReadPost *
		\ if line("'\"") >= 1 && line("'\"") <= line("$") |
		\		exe "normal! g`\"" |
		\ endif

endif

" === FILETYPE SPECIFIC STUFF ===

" --- VIMSCRIPT STUFF ---
au BufNewFile,BufRead *.vim,*vimrc :call <sid>init_vim_file()

function! s:init_vim_file()
	setl number
	nnoremap <buffer> <F5> :w<CR>:so %<CR>
	nnoremap <buffer> <leader>if ofunction! <C-o>m'()<enter>endfunction<C-o>`'<C-o>l

	command! -buffer Functions lex MatchingLines("^\\s*fun\\(ction\\)\\?\\>!.*$")
	command! -buffer Commands  lex MatchingLines("^\\s*com\\(mand\\)\\?\\>!.*$")
	command! -buffer Autocommands  lex MatchingLines("^\\s*au\\(tocmd\\)\\?\\>!\\@!.*$")
endfunction

" --- C / C++ Stuff ---

" Insert Stuff
au BufNewFile,BufRead *.c,*.cpp,*.h,*.hpp :nnoremap <buffer> <leader>ii O#include <><esc>i
au BufNewFile,BufRead *.c,*.cpp,*.h,*.hpp :nnoremap <buffer> <buffer> <leader>ip oprintf("<C-o>m'\n");<esc>`'a
au BufNewFile,BufRead *.c,*.cpp,*.h,*.hpp :nnoremap <buffer> <leader>im oint main(int argc, char *args[]) {<CR>}<esc>O
" Other Stuff
au BufNewFile,BufRead *.c,*.cpp,*.h,*.hpp :nnoremap <buffer> ; m'$a;<C-c>`'

" --- Ruby Stuff ---
au BufNewFile,BufRead *.rb :call <sid>init_ruby_file()

function! s:init_ruby_file()
	set makeprg=ruby\ -wc\ %
	setl number
	command! -buffer Methods call setloclist(0, MatchingLinesDict("^\\s*def\\>\\s\\+\\zs.*$"))
	command! -buffer Classes call setloclist(0, MatchingLinesDict("^\\s*class\\>\\s\\+\\zs.*$"))
	command! -buffer Modules call setloclist(0, MatchingLinesDict("^\\s*module\\>\\s\\+\\zs.*$"))
	command! -buffer Members call setloclist(0, MatchingLinesDict("@\\<\\i*\\>"))
	command! -buffer Requires call setloclist(0, MatchingLinesDict("^\\s*require\\(_relative\\)\\?\\>\\s\\+\\zs.*$"))

	nnoremap <buffer> <leader>ic oclass <C-o>m'<enter>end<esc>`'a
	nnoremap <buffer> <leader>id odef <C-o>m'()<enter>end<esc>`'a

	nnoremap <buffer> <leader>~ :call <SID>RubyComment(0)<CR>
	nnoremap <buffer> <leader># :call <SID>RubyComment(1)<CR>
	vnoremap <buffer> <leader>~ :call <SID>RubyComment(0)<CR>
	vnoremap <buffer> <leader># :call <SID>RubyComment(1)<CR>
endfunction

function! s:RubyComment(a)
	if a:a==0
		" silent! exec '.s/\m^\s*\zs#*//'
		silent! exec '.s/\v^(\s|#)*//'
		normal ==
	elseif a:a==1
		" silent! exec '.s/\v^(\s*#)@!/#/'
		silent! exec '.s/\v^(\s|#)*/# /'
		normal ==
	end
endfunction

" --- Lua Stuff ---

" Matches all types of Lua string!
" \v(["'])\zs.{-}\ze\\@1<!\2|\[(\=*)\[\zs.{-}\ze\]\3\]

au FileType lua :call <sid>init_lua_file()

function! s:init_lua_file()
	setl number
	command! -buffer Requires call setloclist(0, MatchingLinesDict("\\vrequire\\s*\\(?(([\"'])\\zs.{-}\\ze\\\\@1<!\\2|\\[(\\=*)\\[\\zs.{-}\\ze\\]\\3\\])\\)?"))
	command! -buffer Functions call setloclist(0, MatchingLinesDict("^\\v(\\s*\\zs(local\\s*)?function\\s*[a-zA-Z0-9.:_]*\\(.*\\)(\\s*--.*|\\ze.*)|.*function\\(.*\\)(\\s*--.*|\\ze.*))$")) 
	iabbrev <buffer> let do local
endfunction!

" --- HTML Stuff ---
au BufNewFile,BufRead *.html,*.htm,*.etlua,*.erb :call <sid>init_html_file()

function! s:init_html_file()
	setl number
	command! -buffer -nargs=1 Tag normal
				\ i<<args>><<C-o>m'/<args>><ESC>`'
	nnoremap <buffer> <leader>T ""ciw<<C-o>""p><C-o>m'</<C-o>""p><C-o>`'<C-o>l
	nnoremap <buffer> <leader>T ""diw<C-o>"_cc<<C-o>""p><C-o>o</<C-o>""p><C-o>O

	function! s:insert_tag(tag, newline)
		if !a:newline
			let l:text = "<".a:tag."></".a:tag.">" 
		else
		end
		put =l:text
	endfunction

	inoremap <buffer> <C-CR> <C-o>""diw<C-o>"_cc<<C-o>""p><C-o>o</<C-o>""p><C-o>O
endfunction

" --- Moonscript Stuff ---

augroup MOON
	au!
	au BufWritePost *.moon call <SID>automoon()
augroup END
com! ToggleAutoMoon echo <SID>toggleautomoon()
com! ToggleAutoMoonLocal echo <SID>toggleautomoonlocal()
function! s:automoon()
	if exists('g:automoon') || exists('b:automoon')
		silent !moonc %
		redraw
	end
endfun
function! s:toggleautomoon()
	if exists('g:automoon')
		unlet g:automoon
		return 'Automoon: off'
	else
		let g:automoon=1
		return 'Automoon: on'
	end
endfun
function! s:toggleautomoonlocal()
	if exists('b:automoon')
		unlet b:automoon
		return 'Local Automoon: off'
	else
		let b:automoon=1
		return 'Local Automoon: on'
	end
endfun

" --- Markdown Stuff ---
augroup markdown
	autocmd!
	autocmd FileType markdown call <SID>init_markdown_file()
augroup END
function! s:init_markdown_file()
	set textwidth=80
endfunction

" --- LaTeX Stuff ---

command! Latex2PDF call Async([ 'lualatex -draftmode '.expand('%'), 'biber '.expand('%:r'), 'lualatex '.expand('%') ])