vim-camelcomplete

Vim 9 plugin to complete CamelCase, snake_case, and dash-words identifier abbreviations.

Introduction

This plugin provides a lightweight insert-mode completion function that allows you to expand CamelCase, snake_case, and dash-words abbreviations into their full identifiers. It is purely textual, and doesn't require setting up language servers or defining a project structure; rather, it operates like <C-P>/<C-N>, but on identifier abbreviations rather than prefixes.

For instance,

Identifier	Abbreviation
setForwardMark	sFM
open_last_file	olf
channel34Types	c3T
margin-top	mt

As an example (with * representing the cursor position),

  obj.sFM* --> (invoke camelcomplete) --> obj.setForwardMark*

Note: for performance, this plugin is written in vim9script using the matchbufline() and matchstrlist() functions introduced in Vim v9.1.0009, and thus you'll need a sufficiently new version of Vim to use it.

Installation

Use your favorite plugin manager.

For instace, with vim-plug:

Plug 'jessepav/vim-camelcomplete'

Usage

Quick Start:

In your .vimrc, add these lines

CamelCompleteInstall
inoremap <C-X><C-A>    <Cmd>CamelCompleteRefreshBuffers 3<CR><C-X><C-U>

This will set 'completefunc' to a script‑local completion function in camelcomplete.vim, and set up <C‑X><C‑A> to scan all listed buffers and complete the abbreviation before the cursor. You can, of course, use any {lhs} mapping you'd like. I prefer <M‑/>, since it's only one keystroke, but some terminals won't register <M‑/> properly.

More Information

See doc/camelcomplete.txt for more details.