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" Cycle
" Cycle the 'spelllang' option through a set of languages. The `direction`
" argument specifies whether to move left or right (and how much to move) in
" the list.
"
" Derived from `CycleLang` as written by kev here:
" http://stackoverflow.com/questions/12006508/vim-how-to-cycle-through-a-list-of-options-using-the-same-key/12006781#12006781
function! spellcycle#Cycle(direction)
let languages = ['en', 'fr']
let i = index(languages, &spelllang)
let cycled_index = (i + a:direction) % len(languages)
let &spelllang = languages[cycled_index]
set spelllang?
endfunction
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