Change latex provider to luatex, closes #476

autoload/vimtex/misc.vim

@@ -0,0 +1,158 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'latex') == -1
+
+" vimtex - LaTeX plugin for Vim
+"
+" Maintainer: Karl Yngve Lervåg
+" Email:      karl.yngve@gmail.com
+"
+
+function! vimtex#misc#init_buffer() abort " {{{1
+  command! -buffer                VimtexReload call vimtex#misc#reload()
+  command! -buffer -bang -range=% VimtexCountWords
+        \ call vimtex#misc#wordcount_display({
+        \   'range' : [<line1>, <line2>],
+        \   'detailed' : <q-bang> == '!',
+        \   'count_letters' : 0,
+        \ })
+  command! -buffer -bang -range=% VimtexCountLetters
+        \ call vimtex#misc#wordcount_display({
+        \   'range' : [<line1>, <line2>],
+        \   'detailed' : <q-bang> == '!',
+        \   'count_letters' : 1,
+        \ })
+
+  nnoremap <buffer> <plug>(vimtex-reload) :VimtexReload<cr>
+endfunction
+
+" }}}1
+
+function! vimtex#misc#get_graphicspath(fname) abort " {{{1
+  for l:root in b:vimtex.graphicspath + ['.']
+    let l:candidate = simplify(b:vimtex.root . '/' . l:root . '/' . a:fname)
+    for l:suffix in ['', '.jpg', '.png', '.pdf']
+      if filereadable(l:candidate . l:suffix)
+        return l:candidate . l:suffix
+      endif
+    endfor
+  endfor
+
+  return a:fname
+endfunction
+
+" }}}1
+function! vimtex#misc#wordcount(...) abort " {{{1
+  let l:opts = a:0 > 0 ? a:1 : {}
+
+  let l:range = get(l:opts, 'range', [1, line('$')])
+  if l:range == [1, line('$')]
+    let l:file = b:vimtex
+  else
+    let l:file = vimtex#parser#selection_to_texfile('arg', l:range)
+  endif
+
+  let cmd  = 'cd ' . vimtex#util#shellescape(l:file.root)
+  let cmd .= has('win32') ? '& ' : '; '
+  let cmd .= 'texcount -nosub -sum '
+  let cmd .= get(l:opts, 'count_letters') ? '-letter ' : ''
+  let cmd .= get(l:opts, 'detailed') ? '-inc ' : '-q -1 -merge '
+  let cmd .= g:vimtex_texcount_custom_arg . ' '
+  let cmd .= vimtex#util#shellescape(l:file.base)
+  let lines = vimtex#process#capture(cmd)
+
+  if l:file.base !=# b:vimtex.base
+    call delete(l:file.tex)
+  endif
+
+  if get(l:opts, 'detailed')
+    return lines
+  else
+    call filter(lines, 'v:val !~# ''ERROR\|^\s*$''')
+    return join(lines, '')
+  endif
+endfunction
+
+" }}}1
+function! vimtex#misc#wordcount_display(opts) abort " {{{1
+  let output = vimtex#misc#wordcount(a:opts)
+
+  if !get(a:opts, 'detailed')
+    call vimtex#log#info('Counted '
+          \ . (get(a:opts, 'count_letters') ? 'letters: ' : 'words: ')
+          \ . output)
+    return
+  endif
+
+  " Create wordcount window
+  if bufnr('TeXcount') >= 0
+    bwipeout TeXcount
+  endif
+  split TeXcount
+
+  " Add lines to buffer
+  for line in output
+    call append('$', printf('%s', line))
+  endfor
+  0delete _
+
+  " Set mappings
+  nnoremap <buffer><nowait><silent> q :bwipeout<cr>
+
+  " Set buffer options
+  setlocal bufhidden=wipe
+  setlocal buftype=nofile
+  setlocal cursorline
+  setlocal nobuflisted
+  setlocal nolist
+  setlocal nospell
+  setlocal noswapfile
+  setlocal nowrap
+  setlocal tabstop=8
+  setlocal nomodifiable
+
+  " Set highlighting
+  syntax match TexcountText  /^.*:.*/ contains=TexcountValue
+  syntax match TexcountValue /.*:\zs.*/
+  highlight link TexcountText  VimtexMsg
+  highlight link TexcountValue Constant
+endfunction
+
+" }}}1
+" {{{1 function! vimtex#misc#reload()
+if get(s:, 'reload_guard', 1)
+  function! vimtex#misc#reload() abort
+    let s:reload_guard = 0
+
+    for l:file in glob(fnamemodify(s:file, ':h') . '/../**/*.vim', 0, 1)
+      execute 'source' l:file
+    endfor
+
+    " Temporarily unset b:current_syntax (if active)
+    let l:reload_syntax = get(b:, 'current_syntax', '') ==# 'tex'
+    if l:reload_syntax
+      unlet b:current_syntax
+    endif
+
+    call vimtex#init()
+
+    " Reload syntax
+    if l:reload_syntax
+      runtime! syntax/tex.vim
+    endif
+
+    " Reload indent file
+    if exists('b:did_vimtex_indent')
+      unlet b:did_indent
+      runtime indent/tex.vim
+    endif
+
+    call vimtex#log#info('The plugin has been reloaded!')
+    unlet s:reload_guard
+  endfunction
+endif
+
+" }}}1
+
+
+let s:file = expand('<sfile>')
+
+endif