Dumb automatic fast indentation detection for Neovim written in Lua
Instead of trying to be smart about detecting an indentation using statistics, it will find the first thing that looks like a standard indentation (tab or 8/4/2 spaces) and assume that's what the file's indentation is
This has the advantage of being fast and very often correct while being simple enough that most people will understand what it will do predictably
Can be installed through any standard Vim package manager, configuration is optional
E.g. through vim-plug:
call plug#begin()
Plug 'Darazaki/indent-o-matic'
call plug#end()
Then restart Neovim and run :PlugInstall
Configuration is done in Lua:
require('indent-o-matic').setup {
-- The values indicated here are the defaults
-- Number of lines without indentation before giving up (use -1 for infinite)
max_lines = 2048,
-- Space indentations that should be detected
standard_widths = { 2, 4, 8 },
-- Skip multi-line comments and strings (more accurate detection but less performant)
skip_multiline = true,
}
You can also directly configure it from a Vim file by using the lua
instruction:
lua <<EOF
require('indent-o-matic').setup {
-- ...
}
EOF
Optionally you can define language-specific settings using the filetype_$ft
tables:
require('indent-o-matic').setup {
-- Global settings (optional, used as fallback)
max_lines = 2048,
standard_widths = { 2, 4, 8 },
-- Disable indent-o-matic for LISP files
filetype_lisp = {
max_lines = 0,
},
-- Only detect 4 spaces and tabs for Rust files
filetype_rust = {
standard_widths = { 4 },
},
-- Don't detect 8 spaces indentations inside files without a filetype
filetype_ = {
standard_widths = { 2, 4 },
},
}
If a preference hasn't been set in the language-specific settings, it'll be retrieved from the global settings
:IndentOMatic
is also made available to detect the current buffer's indentation
on demand
If you want this plugin to only be invoked manually through :IndentOMatic
,
you can add autocmd! indent_o_matic
to your init file
I've made this little plugin as a fun side-project to learn how Lua works with Neovim as a beginner so, if you've an idea, feel free to write a PR to improve this project!
The only rules to follow are:
testing
branch (for, well, testing if everything still works)Note: Forking or taking part of the code without asking is also a-ok, this is libre MIT-licensed stuff!