acceding capturing group inside hook

[alexherbo2]

Take hook global NormalKey * %{ echo %match{0} }.

%match{0} is replaced with the match for which this hook was executed.

[mawww]

You can access the parameter passed to the hook (the whole string matched by the hook regex) with $kak_hook_param in %sh{...} or with %val{hook_param}

[alexherbo2]

I was thinking about kak_hook_param_<n> to expose captured groups.