vim-auto-popmenu

A tiny and portable script (169 lines) to provide you YouCompleteMe like experience for buffer, dictionary and tags completion without installing heavy completion engines and building background servers.

What Is It ?

Semantic completion is great, but sometimes, when you are coding in an obscure laguange which is lack of LSP support, or you are working in a temporary system and you don't want waste time to set up a heavyweight completion engine and build a background server.

In these circumstances, vim's built-in completion system is good enough for you, it can collect keywords from buffers and dictionary or ctag files, but requires you to press <c-n> or <c-x><c-k> manually.

This tiny little script will help you to trigger the completion menu when you have entered 1 or 2 alphabets and provide you exact the same experience like YouCompleteMe:

Features

• Popup the completion menu automatically.
• Tab or shift+TAB to cycle keywords, <c-e> to cancel.
• Same experience like YouCompleteMe for buffer, dict and tags completion.
• Green, everything is local to buffer, will not pollute your vim or disturb other plugins.
• Capable to co-exist with other completion plugins.
• No heavy engines, no need to build background servers.
• Faster and more handy than the old famous AutoComplPop.
• Portable, just a simple apc.vim script, easy to be distributed.
• Only 169 lines, you can even copy it to your vimrc.
• Convenience as a backup way for big completion plugins.

Usage

That's all you need:

Plug 'skywind3000/vim-auto-popmenu'

" enable this plugin for filetypes, '*' for all files.
let g:apc_enable_ft = {'text':1, 'markdown':1, 'php':1}

" source for dictionary, current or other loaded buffers, see ':help cpt'
set cpt=.,k,w,b

" don't select the first item.
set completeopt=menu,menuone,noselect

" suppress annoy messages.
set shortmess+=c

And perhaps a dictionary database plugin for many languages:

Plug 'skywind3000/vim-dict'

Then you go.

Commands

ApcEnable

Enable plugin for the current buffer manually. Useful when you didn't set g:apc_enable_ft.

ApcDisable

Disable plugin for the current buffer.

Cooperative

If you are using YouCompleteMe, disable it for certain filetypes:

let g:ycm_filetype_blacklist = {'text':1, 'markdown':1, 'php':1}

and enable this plugin for these files:

let g:apc_enable_ft = {'text':1, 'markdown':1, 'php':1}

Configuration

1) g:apc_enable

Default: 1 Set to 0 to disable this plugin.

2) b:apc_enable

Default: unset Set to 0 to disable this plugin for certain buffer.

3) g:apc_min_length

Default: 2 Minimal characters to trigger the completion popup menu.

4) g:apc_trigger

Default: "\<c-n>" Key to trigger the completion popup menu. Set to "\<c-x>\<c-o>" to trigger omni completion.

5) b:apc_trigger

Default: unset Specify trigger key for certain buffer, will override g:apc_trigger for certain buffer.

Credit

• https://github.com/othree/vim-autocomplpop.