VSCode Astyle Format

This extension allows you to run Artistic Style(Astyle) on Visual Studio Code to format C/C++/Objective-C/C#/Java code.

Installation

Open the command palette (Ctrl-Shift-P / Cmd-Shift-P)

ext install vscode-astyle

Download Astyle from http://astyle.sourceforge.net/. (On Linux, you can use apt-get)
Prepare your style by editting astylerc and put it in the search path. (see the link first: http://astyle.sourceforge.net/astyle.html#_Option_Files)
Make sure Astyle executable is in your system $PATH or add path to configration.
Enable supported languages in configration. (C and C++ are enabled by default)
When you open a supoprted language file, you can find 'Format' in context menu or just shortcut Shift-Alt-F.

astyle.astylerc: specify path of astylerc file. ${workspaceRoot} is supported to enable using different astyle file between projects. e.g. '${workspaceRoot}/.vscode/astylerc'. (default: null, lookup astylerc in original order of astyle)
astyle.cmd_options: array of command line options for astyle. (You should avoid conflicted options) For example: ["--indent=tab", "--break-blocks"]
astyle.max_buffer_multipler: multiplier to indicate how large an output buffer to allocate for the transformed source code file after Astyle processes it. (default: 2, assumes most formatting/whitespace expansion will result in less than a 2x increase in file size).
astyle.additional_languages: array of additional languages to use astyle as code formatter. For example: ["haxe"]. (You don't have to enable the language in astyle config)

Q1. How to avoid conflict with ClangFormat in C/C++ package
A1. VSCode is not support dominate code formatter but with scores, and it two formatter has same score, it choose the later one. However, in the latest version of C/C++ package, you can disable ClangFormat with options "C_Cpp.formatting" : "disabled". (Thanks to @BillDenton notes.)