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I have this mapping in my vimrc:

imap <expr> <silent> <cr> neocomplete#mappings#close_popup() .
\ "<Plug>(neosnippet_jump_or_expand)"

and it's working great. When I press enter in a neocomplete popup it expands neosnippet but the problem is that <cr> will now work only for that and will not do a return line in insert mode.

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2 Answers 2

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Your question could be more elaborate. Perhaps you need something like:

imap <expr> <silent> <cr> neosnippet#expandable_or_jumpable() ?
            \ "<Plug>(neosnippet_expand_or_jump)" :
            \ neocomplete#mappings#close_popup()."\<CR>"
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  • thats work in the case of function has a paramettre , but in the case of the function hase no paramettre it insert obg.fun()() it insert () two times
    – WALID BELRHALMIA
    Commented Aug 23, 2015 at 19:09
  • What function? Snippet?
    – VanLaser
    Commented Aug 23, 2015 at 19:34
  • plz look at : github.com/Shougo/neocomplete.vim/issues/461 you will understand the problem
    – WALID BELRHALMIA
    Commented Aug 23, 2015 at 19:48
  • i use neosnnipet with neocomplete for autocompletion , when i chose the function to autocomplete neosnippet generate automaticly a snippet to insert all function prototype
    – WALID BELRHALMIA
    Commented Aug 23, 2015 at 19:50
  • I will give you my advice: DON'T use the same key for autocompletion and snippet expansion. Use <C-j> for snippets.
    – VanLaser
    Commented Aug 23, 2015 at 19:52
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This is the how complex insert mode mappings that involve the popup menu are usually written:

iemap <expr> <key> pumvisible() ? "\<another-key>" : "\<key>"

The ternary operator is used to "press" <another-key> if we are in a popup menu or <key> if we are not.

Assuming the snippet in your question works (I don't use those plugins), the following mapping should expand the selected snippet if you are in a popup menu or just "press" a regular <CR> otherwise.

imap <expr> <silent> <cr> pumvisible() ?
    \ neocomplete#mappings#close_popup() . "<Plug>(neosnippet_jump_or_expand)" :
    \ "\<CR>"

Note that the code above doesn't check if it is in a neobundle + neosnippet popup menu so I'd suggest putting all that in a function so that you have some elbow room for all your checks (and get a chance to use an actual if-elseif-else-endif conditional instead of a deep ternary operator.

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