SimpleAutoComplPop

Note: I'm not mantaining this plugin anymore, in favor of nvim-completion-manager. If you have plans for improving this plugin by yourself, please contact me, I'll transfer the project ownership.

A simplified fork from vim-scripts/AutoComplPop

SimpleAutoComplPop is a lightweight, pure vimscript plugin, which focuses on easy to use, and easy to be extended for your own use cases. SACP maps keys on a per-buffer basis. Technically it will not conflict with other auto-complete plugin if you configure carefully.

Usage

Currently, SACP only provides default configurations for php, go, txt and markdown files.

PHP

	autocmd FileType php,php5,php7 call sacp#enableForThisBuffer({ "matches": [
				\ { '=~': '\v[a-zA-Z]{4}$', 'feedkeys': "\<C-x>\<C-o>"},
				\ { '=~': '::$'           , 'feedkeys': "\<C-x>\<C-o>"},
				\ { '=~': '->$'           , 'feedkeys': "\<C-x>\<C-o>"},
				\ ]
				\ })

This demo requires phpcomplete.vim.

Golang

	" 1. variables are all defined in current scope, use keyword from current
	" buffer for completion `<C-x><C-n>`
	" 2. When the '.' is pressed, use smarter omnicomplete `<C-x><C-o>`, this
	" works well with the vim-go plugin
	autocmd FileType go call sacp#enableForThisBuffer({ "matches": [
				\ { '=~': '\v[a-zA-Z]{4}$' , 'feedkeys': "\<C-x>\<C-n>"} ,
				\ { '=~': '\.$'            , 'feedkeys': "\<C-x>\<C-o>", "ignoreCompletionMode":1} ,
				\ ]
				\ })

This demo requires vim-go.

Seems good. While SACP provides a slightly improved plugin key <Plug>(sacp_cache_fuzzy_omnicomplete). Check the Advanced Features section For more details.

Configiration Options Explained

• To disable SACP, add let g:sacpEnable = 0 to your vimrc file.
• To enable the default auto-complete-popup behavior for php only, add let g:sacpDefaultFileTypesEnable = {"php":1} to your vimrc file.
• sacp#enableForThisBuffer options:
  • matches is a list of patterns, pattern is matched, the keys corrosponding the pattern will be feed to vim.
    • ignoreCompletionMode. By default, Keys will not be feeded by SACP if popup enu is visible or vim is still in completion mode (:help CompleteDone). However, It's difficult for complete-functions to leave completion mode properly. With current version of vim-go plugin for example, when I type htt<C-X><C-O> it will popup a list containing http, then I proceed the typing to htt<C-X><C-O>p.. When the . is typed the popup menu is gone, but the event CompleteDone event is not triggered. Set the ignoreCompletionMode to 1 would force SACP to feed the <C-X><C-O> keys..
  • completeopt, the default value for this option is "menu,menuone,noinsert,noselect", set it to "menu,menuone,noinsert" if you want the first hint to be selected by default.

Advanced Features

<Plug>(sacp_cache_fuzzy_omnicomplete)

Use the golang example before, I'll change the \<C-x>\<C-o> into \<Plug>(sacp_cache_fuzzy_omnicomplete). This key is based on user's default omnifunc, it catches the first list return by omnifunc, then provide fuzzy completion feature.

	" 1. variables are all defined in current scope, use keyword from current
	" buffer for completion `<C-x><C-n>`
	" 2. When the '.' is pressed, use smarter omnicomplete `<C-x><C-o>`, this
	" works well with the vim-go plugin
	autocmd FileType go call sacp#enableForThisBuffer({ "matches": [
				\ { '=~': '\v[a-zA-Z]{2}$' , 'feedkeys': "\<C-x>\<C-n>"} ,
				\ { '=~': '\.$'            , 'feedkeys': "\<Plug>(sacp_cache_fuzzy_omnicomplete)", "ignoreCompletionMode":1} ,
				\ ]
				\ })

Type http.ok, then there goes the first hint StatusOk

<Plug>(sacp_cache_fuzzy_bufferkeyword_complete)

Use the keywords (:help iskeyword) from current buffer for fuzzy completion. It only scans the keywords from the 50 lines before and after the current line, for performance issue. Use the golang example, replace the "\<C-x>\<C-n>" with "\<Plug>(sacp_cache_fuzzy_bufferkeyword_complete)" and see what happens.