#+TITLE:   input/layout
#+DATE:    Jun 29, 2020
#+SINCE:   v3.0
#+STARTUP: inlineimages nofold

* Table of Contents :TOC_3:noexport:
- [[#description][Description]]
  - [[#maintainers][Maintainers]]
  - [[#module-flags][Module Flags]]
  - [[#plugins][Plugins]]
- [[#prerequisites][Prerequisites]]
- [[#features][Features]]
  - [[#bépo][Bépo]]
    - [[#leaving-mnemonics-alone-when-possible][Leaving mnemonics alone when possible]]
    - [[#possible-contributions][Possible contributions]]
- [[#configuration][Configuration]]
  - [[#bépo-1][Bépo]]
- [[#troubleshooting][Troubleshooting]]
  - [[#how-to-deactivate-the-new-bindings-and-go-back-to-the-old-ones-][How to deactivate the new bindings and go back to the old ones ?]]

* Description
This module provides barebones support for using Doom with evil-mode with non-qwerty layouts.

** Maintainers
+ @gagbo (Author)

** Module Flags
+ =+bepo= Enables modifications for the BÉPO layout (customized with version 1.1 in mind)

** Plugins
None

* Prerequisites
This module should only be active if evil is enabled. It uses a general.el utility function, and
the hooks provided by evil-collection to make the necessary changes.

* Features
# An in-depth list of features, how to use them, and their dependencies.
** Bépo
Support for the bépo layout includes:
- Setting Avy keys to the correct home row keys
- Changing navigation keys to =ctsr=
  + old =t= is mapped to =j=
  + old =s= is mapped to =k= (i.e. staging in the magit status buffer is done with =k=)
  + See [[*Configuration][Configuration]] to see where old =c= and =r= functions
    are remapped
- Bind =<>= functions to =«»= keys when possible
- Bind =[]= functions to =()= keys when possible
- Bind =é= key to =w= functions when possible
- Bind =è= key to useful functions when possible
- Bind =`~= functions to =$#= keys when possible

*** Leaving mnemonics alone when possible
Exchanging =hjkl= to =ctsr= has the effect of destroying a few mnemonics: the
change operator becomes =l= for example, or the window split becomes =SPC é k=.

The module tries to limit those changes to the minimum, especially in special
buffers. A concrete example is magit.

In the =magit: project= buffer (obtained with =magit-status=) does not need
left-right navigation, so =c=, =r=, =h=, and =l= keep their "expected" bindings,
while =t=, =s=, =j=, and =k= are flipped:
- checking the log from a magit buffer is still on =l=
- staging a file/region has been moved to =k=

*** Possible contributions
A nice addition in the future might be to have all the normal mode bindings that
start with =g= start with =,= instead to avoid the curl on these common
bindings. This is *not* implemented for the time being.

* Configuration
** Bépo
=doom-bepo-cr-rotation-style= controls whether:
- =qwerty-c= functions are mapped on =bépo-l= key, and =qwerty-r= functions on
  =bépo-h= key (='ergodis=), or
- =qwerty-c= functions are mapped on =bépo-h= key, and =qwerty-r= functions on
  =bépo-l= key (='strict=)
='strict= would be the logical choice but the =c= functions are used more often
than the =r= ones so [[https://bepo.fr/wiki/Vim#Principe][Ergodis]] advises to
actually put all the =c= functions on the key that does not need a curl.

* Troubleshooting
# Common issues and their solution, or places to look for help.
** How to deactivate the new bindings and go back to the old ones ?
If you are learning a new layout you might want to go back to tho old one to
"get work done". Sadly the only way is to comment out the module, run =doom
sync= and restart emacs.

Restoring the session =SPC q l= by default helps to lower the impact of the
restart.