How I use temporary keybindings for spellcheck in Neovim

I use my text editor Neovim for everything, and I really mean everything. I even use it for inputing text on the web via my web browser qutebrowser and it’s of course the editor I use for all my emails. This also means that I commonly use the spellchecking feature all the time.

And because I use the spellcheck feature all the time, I also want the shortcuts for it to be close to the home row. Unfortunately, I couldn’t find any available keys that felt natural to me to bind the spellcheck commands to, but after some thinking, I got the idea that I could use temporary keybindings.

This means that the keybindings for the spellcheck is only available when I have the spellcheck feature enabled, and I can bind them to keys that I normally use for other things.

After some experimenting, I came up with this solution:

map <silent> <F1>
        \ :set nospell<BAR> :silent! unmap ff<BAR> :silent! unmap fF<BAR>
        \ :silent! unmap fa<BAR> :silent! unmap fn<BAR> :silent! unmap fd<BAR>
        \ :redraw<BAR> echom "Spellcheck disabled"<CR>

map <F2>
        \ :setlocal spell spelllang=sv<BAR> :noremap ff ]s<BAR> :noremap fF [s<BAR>
        \ :noremap fa zg<BAR> :noremap fn z=<BAR> :noremap fd zuw<BAR>
        \ :highlight SpellBad ctermfg=003 ctermbg=none cterm=none<BAR> :redraw<BAR>
        \ echom "Swedish spellcheck enabled"<CR>

map <F3>
        \ :setlocal spell spelllang=en<BAR> :noremap ff ]s<BAR> :noremap fF [s <BAR>
        \ :noremap fa zg<BAR> :noremap fn z=<BAR> :noremap fd zuw<BAR>
        \ :highlight SpellBad ctermfg=003 ctermbg=none cterm=none<BAR> :redraw<BAR>
        \ echom "English spellcheck enabled"<CR>

This means that when I enable spellcheck I also enable these keybindings:

And when I disable the spellcheck, it then removes the keybindings and restore the default behaviour for the f key.