anchor.diff:   * `w`: select the word and following whitespaces  on the right of selection end
    * `b`: select preceding whitespaces and the word on the left of selection end
    * `e`: select preceding whitespaces and the word on the right of selection end
  - * `alt-[wbe]`: same as [wbe] but select WORD instead of word
  + * `<a-[wbe]>`: same as [wbe] but select WORD instead of word
   
    * `f`: select to the next occurence of given character
    * `t`: select until the next occurence of given character
  - * `<alt-[ft]>`: same as [ft] but in the other direction
  + * `<a-[ft]>`: same as [ft] but in the other direction
   
    * `m`: select to matching character
    * `M`: extend selection to matching character
   
    * `x`: select line on which selection end lies (or next line when end lies on
           an end-of-line)
  - * `alt-x`: expand selections to contain full lines (including end-of-lines)
  - * `alt-X`: trim selections to only contain full lines (not including last
  + * `<a-x>`: expand selections to contain full lines (including end-of-lines)
  + * `<a-X>`: trim selections to only contain full lines (not including last
               end-of-line)
   
    * `%`: select whole buffer
   
  - * `alt-h`: select to line begin
  - * `alt-l`: select to line end
  + * `<a-h>`: select to line begin
  + * `<a-l>`: select to line end
   
    * `/`: search (select next match)
  - * `alt-/`: search (select previous match)
  + * `<a-/>`: search (select previous match)
    * `?`: search (extend to next match)
  - * `alt-?`: search (extend to previous match)
  + * `<a-?>`: search (extend to previous match)
    * `n`: select next match
    * `N`: add a new selection with next match
  - * `alt-n`: select previous match
  - * `alt-N`: add a new selection with previous match
  + * `<a-n>`: select previous match
  + * `<a-N>`: add a new selection with previous match
   
    * `pageup`: scroll up
    * `pagedown`: scroll down
  
positive.code: Menus
  ~~~~~
  
  When a menu is displayed, you can use `j`, `<ctrl-n>` or `<tab>` to select the next
  entry, and `k`, `<ctrl-p>` or `<shift-tab>` to select the previous one.
  
  Using the `/` key, you can enter some regex in order to restrict available choices
  to the matching ones.
  
negative.code: Kakoune can propose completions while inserting text, the `completers` option
  controls automatic completion, which kicks in when a certain idle timeout is
  reached (100 milliseconds). Insert mode completion can be explicitly triggered
  using `<c-x>`, followed, by:
  
   * *f* : filename completion
   * *w* : buffer word completion
   * *l* : buffer line completion
  
  Completion candidates can be selected using `<c-n>` and `<c-p>`.
  
  Escape to normal mode
  ~~~~~~~~~~~~~~~~~~~~~
  