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README.adoc

parinfer-rust

Infer parentheses for Clojure, Lisp and Scheme.

A full-featured, super fast implementation of Shaun Lebron’s parinfer. This repo has Vim, Neovim, and Kakoune plugins, and an Emacs plugin is available. The Rust library can be called from other editors that can load dynamic libraries.

This plugin, unlike others available for Vim, implements "smart" mode. Rather than switching between "paren" mode and "indent" mode, parinfer uses information about how the user is changing the file to decide what to do.

Installing

Dependencies:

  • rust >= 1.36

  • clang and libclang-dev packages or equivalent for your OS

Stand-alone CLI

If you just want to run parinfer-rust from the command-line:

$ cargo build --release
$ cargo install

Vim and Neovim

pathogen

If you are using Tim Pope’s pathogen:

$ cd ~/.vim/bundle
$ git clone git@github.com:eraserhd/parinfer-rust.git
$ cd ~/.vim/bundle/parinfer-rust
$ cargo build --release

vim-plug

Plug 'eraserhd/parinfer-rust'

Then, build project using cargo:

$ cd /path/to/parinfer-rust
$ cargo build --release

Or, with optional automatic recompilation on update:

Plug 'eraserhd/parinfer-rust', {'do':
        \  'cargo build --release'}

If you are a NixOS user, you can use this command instead:

Plug 'eraserhd/parinfer-rust', {'do':
        \ 'nix-shell --run \"cargo build --release \"'}

Kakoune

plug.kak

Add this to your kakrc

plug "eraserhd/parinfer-rust" do %{
    cargo install --force --path .
} config %{
    hook global WinSetOption filetype=(clojure|lisp|scheme|racket) %{
        parinfer-enable-window -smart
    }
}

Re-source your kakrc or restart Kakoune. Then run :plug-install. plug.kak will download, build and install plugin for you. Optionally add cargo clean line to the do block to clean plugin from build files, thus making it load a bit faster.

Manual

$ cd ~/my-projects
$ git clone git@github.com:eraserhd/parinfer-rust.git
$ cd parinfer-rust
$ make install
$ cargo build --release
$ cargo install

Add this to your kakrc

hook global WinSetOption filetype=(clojure|lisp|scheme|racket) %{
    parinfer-enable-window -smart
}

NixOS or nix-darwin

{
  environment.systemPackages = let
    myKakoune = pkgs.wrapKakoune pkgs.kakoune-unwrapped {
      configure = {
        plugins = with self.kakounePlugins; [
          parinfer-rust
        ];
      };
    };
  in [ myKakoune ];
}

Alternately, you can add your plugins as an overlay:

{
  nixpkgs.overlays = [
    (self: super: {
      kakoune = super.wrapKakoune self.kakoune-unwrapped {
        configure = {
          plugins = with self.kakounePlugins; [
            parinfer-rust
          ];
        };
      };
    })
  ];

  environment.systemPackages = [ pkgs.kakoune ];
}

Emacs

To install parinfer-rust for Emacs follow the instructions at parinfer-rust-mode.el

Building WebAssembly

WebAssembly currently needs the ``nigthly'' toolchain:

$ rustup update
$ rustup install nightly
$ rustup target add wasm32-unknown-unknown --toolchain nightly
$ cargo +nightly install cargo-web

It can then be built with:

$ cargo +nightly web build --release

Tests

The CI server uses [Nix](https://nixos.org/nix/download.html) to make reproducible build and test environments. It’s a good idea to run tests with it.

$ nix-build release.nix                  # Build and test everything
$ cargo test                             # Run the native tests
$ cargo +nightly web test                # Test the WebAssembly version
$ vim --clean -u tests/vim/run.vim       # Test against locally-installed Vim
$ ( cd tests/kakoune && ./run.sh )       # Test against locally-installed Kakoune
$ nix-build release.nix -A vim-tests     # Test against Nix Vim package
$ nix-build release.nix -A neovim-tests  # Test against Nix Neovim package
$ nix-build release.nix -A kakoune-tests # Test against Nix Kakoune package

Vim tests are in a nice, readable format in tests/vim/test-cases.md. Please add tests for any new features (or even old ones!). You can set the VIM_TO_TEST environment variable to Vim’s path to test weird or different builds.

Contributors

This wouldn’t be possible without the work of others:

  • Shaun Lebron - Inventing parinfer and doing the math.

  • Case Nelson - Writing the nvim-parinfer, from which VimL code and some inspiration was stolen.

  • Justin Barclay - Emacs module.

  • Michael Camilleri - User-defined comments.

  • Mitsuhiro Nakamura - Support for Common Lisp and Scheme.

License