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I want to map , in normal mode to function as autocompleting a word <c-n> in insert mode. Also, I want to keep pressing , in normal mode to cycle through the list and then finally when I finish after choosing a word to still stay in normal mode.

Is this possible? The only way I can think of is to first map to i to enter insert mode. But then I don't want i mapped again in future iterations of ,.

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1 Answer 1

Reset to default
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The basic strategy is to use an expression mapping and check whether the popup menu is visible to issue the correct keys.

nnoremap <silent> , :call search('\w\>','cW')<cr>a<c-n>
inoremap <silent> <expr> , pumvisible() ? "\<c-n>" : ","

The normal mapping goes to the end of the word before trying to complete.

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  • WOW! What if I also wanted to remain in normal mode after choosing?
    – domoremath
    Sep 5, 2017 at 15:53
  • 2
    What key press do you use to "choose" an entry? Obviously pressing escape works already. Two ideas would be to map <c-y> and <c-e> which are the "accept" and "cancel" commands, or add a CompleteDone autocommand which drops back to normal mode. Both of these have side-effects though, and are more complicated to implement. What about inoremap <silent><expr> <cr> pumvisible() ? "\<c-y>\<esc>" : "<cr>"
    – Mass
    Sep 5, 2017 at 16:13

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