Check syntax in Vim/Neovim asynchronously and fix files, with Language Server Protocol (LSP) support

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README.md

ALE - Asynchronous Lint Engine

ALE (Asynchronous Lint Engine) is a plugin for providing linting in NeoVim and Vim 8 while you edit your text files.

ALE makes use of NeoVim and Vim 8 job control functions and timers to run linters on the contents of text buffers and return errors as text is changed in Vim. This allows for displaying warnings and errors in files being edited in Vim before files have been saved back to a filesystem.

In other words, this plugin allows you to lint while you type.

NOTE: This Vim plugin has been written pretty quickly so far, and is still in rapid development. Documentation and stable APIs will follow later.

Supported Languages and Tools

This plugin supports the following languages and tools. All available tools will be run in combination, so they can be complementary.

Language	Tools
Bash	-n flag
Bourne Shell	-n flag
C	gcc
D	dmd
Fortran	gcc
JavaScript	eslint, jscs, jshint
Python	flake8
Ruby	rubocop

If you would like to see support for more languages and tools, please create an issue or create a pull request. If your tool can read from stdin or you have code to suggest which is good, support can be happily added for more tools.