How do I trigger a custom user-defined completion function in insert mode?
<C-x><C-u>
Vim's invokes a user-defined completion function, letting you plug any completion logic you want into the standard insert-mode completion popup.
Tag: completion
How do I use keyword completion that searches included files and headers in Vim?
<C-x><C-i>
Vim's completion mode searches for keyword matches not just in the current buffer, but also in all files reachable via include directives (e.
How do I make Vim's command-line tab completion case-insensitive for file and buffer names?
:set wildignorecase
:set wildignorecase makes Vim's command-line tab completion treat uppercase and lowercase letters as equivalent when completing file names, buffer names, and ot
How do I configure Vim's completion menu to show a popup without auto-selecting the first candidate?
:set completeopt=menuone,noselect
By default, Vim's and completion can auto-insert the first match, or only show a menu when there are multiple matches.
How do I enable fuzzy matching for command-line tab completion in Neovim?
:set wildoptions=fuzzy
Enables fuzzy matching for Neovim's command-line tab completion (wildmenu), so you can match any part of a filename, command, or option — not just from the be
command-line #completion #command-line #neovim #config #wildmenu
How do I exclude compiled files and dependency folders from Vim's file name completion?
:set wildignore+=*.pyc,*.o,node_modules/**,.git/**
wildignore is a comma-separated list of glob patterns that Vim skips when expanding file names.
How do I complete identifiers using ctags from within insert mode?
<C-x><C-]>
Pressing in insert mode opens a completion menu populated from your project's tags file.
How do I make Tab trigger wildmenu completion inside a custom mapping?
set wildcharm=<Tab>
By default, pressing in a : mapping inserts a literal tab character rather than triggering wildmenu completion.
How do I copy one character at a time from the line above or below while typing in insert mode?
<C-e> / <C-y> (insert mode)
In insert mode, copies the character directly below the cursor (from the next line) and copies the character directly above (from the previous line).
How do I make Vim sort buffer completions by most recently used?
set wildmode=lastused
With wildmode=lastused, :b cycles buffers in most-recently-used order instead of alphabetically.
How do I make a mapping that opens a Tab completion menu for buffer switching?
set wildcharm= then nnoremap b :b
wildcharm sets the key that triggers wildmenu expansion inside mappings.
How do I fix a misspelled word using Vim's spell checker while staying in insert mode?
<C-x>s
When spell checking is enabled (:set spell), s in insert mode opens a popup menu of suggested corrections for the most recently flagged misspelled word — with
How do I include dictionary and spelling words in Vim's insert-mode autocomplete?
:set complete+=kspell
Vim's built-in completion ( / ) sources matches from buffers, included files, and tags by default.
How do I get enhanced tab completion with a visual menu for commands and file paths?
:set wildmenu wildmode=longest:full,full
By default, Vim's command-line tab completion just cycles through options.
How do I copy a character from the line above or below while in insert mode?
<C-y> / <C-e>
When typing in insert mode, you can pull individual characters from adjacent lines without leaving insert mode.
How do I add custom tab completion to my own Ex commands?
:command -complete=file -nargs=1 E edit <args>
When defining custom commands with :command, the -complete option adds tab completion for arguments.
command-line #command-line #completion #custom-command #tab-complete
How do I limit the height of Vim's insert-mode completion popup menu?
:set pumheight=10
By default, Vim's completion popup menu (the PUM — Pop-Up Menu) can expand to fill the entire screen if there are many candidates.
How do you enable enhanced command-line completion?
set wildmenu wildmode=longest:full,full
Enable wildmenu for a visual menu above the command line.
How do you configure insert-mode completion behavior?
set completeopt=menu,menuone,noselect
Configure completeopt to control the completion popup: menu shows popup, menuone shows even for single match, noselect doesn't auto-select.
How do I configure Vim's built-in auto-completion?
:set completeopt=menu,menuone,noselect
The completeopt option controls the behavior of the completion popup menu.