Title : Kakoune: filetype based on filename
Author: Solène
Date : 30 May 2021
Tags : kakoune editor
# Introduction
I will explain how to configure Kakoune to automatically use a filetype (for completion/highlighting..) depending on the filename or its extension.
# Setup
The file we want to change is ~/.config/kak/kakrc , in case of issue you can use ":buffer *debug*" in kakoune to display the debug output.
## Filetype based on the filename
I had a case in which the file doesn't have any extension. This snippet will assign the filetype Perl to files named Rexfile.
```kakoune configuration example
hook global BufCreate (.*/)?Rexfile %{
}
```
## Filetype based on the extension
While this is pretty similar to the previous example, we will only match any file ending by ".gmi" to assign it a type markdown (I know it's not but the syntax is quite similar).
```kakoune configuration example
hook global BufCreate .*\.gmi %{
}
```