neovim-gtk/runtime/plugin/nvim_gui_shim.vim

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" A Neovim plugin that implements GUI helper commands
if !has('nvim') || exists('g:GuiLoaded')
finish
endif
let g:GuiLoaded = 1
" Set GUI font
function! GuiFont(fname, ...) abort
call rpcnotify(1, 'Gui', 'Font', s:NvimQtToPangoFont(a:fname))
endfunction
" Some subset of parse command from neovim-qt
" to support interoperability
function s:NvimQtToPangoFont(fname)
let l:attrs = split(a:fname, ':')
let l:size = -1
for part in l:attrs
if len(part) >= 2 && part[0] == 'h'
let l:size = strpart(part, 1)
endif
endfor
if l:size > 0
return l:attrs[0] . ' ' . l:size
endif
return l:attrs[0]
endf
" The GuiFont command. For compatibility there is also Guifont
function s:GuiFontCommand(fname, bang) abort
if a:fname ==# ''
if exists('g:GuiFont')
echo g:GuiFont
else
echo 'No GuiFont is set'
endif
else
call GuiFont(a:fname, a:bang ==# '!')
endif
endfunction
command! -nargs=? -bang Guifont call s:GuiFontCommand("<args>", "<bang>")
command! -nargs=? -bang GuiFont call s:GuiFontCommand("<args>", "<bang>")