[LLVMdev] Emacs LLVM coding style dir-locals

[Stephen Crane]

Hi all,

Just wanted to share a trick I found for using the LLVM coding style in
Emacs, although I'm sure this is nothing new to veterans around here.
There's an LLVM coding style emacs plugin in /utils/emacs/emacs.el. However
this uses a string match against "llvm" to try to guess if the current
directory contains llvm sources. A simpler method is to use Emacs directory
variable support (
https://www.gnu.org/software/emacs/manual/html_node/emacs/Directory-Variables.html).
Just drop the following lines into a .dir-locals.el file in the root of the
LLVM sources, and all files in the source tree will pick up the correct
formatting settings:

((nil . ((indent-tabs-mode . nil)
         (fill-column . 80)
         (c++-indent-level . 2)
         (c-base-offset . 2)
         (c-offsets-alist . ((innamespace . 0))))))


I hope this helps someone!

- stephen
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