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kakoune/rc/yaml.kak

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# http://yaml.org
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufSetOption mimetype=text/x-yaml %{
set buffer filetype yaml
}
hook global BufCreate .*[.](yaml) %{
set buffer filetype yaml
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
addhl -group / regions -default code yaml \
double_string '"' (?<!\\)(\\\\)*" '' \
single_string "'" "'" '' \
comment '#' '$' ''
addhl -group /yaml/double_string fill string
addhl -group /yaml/single_string fill string
addhl -group /yaml/comment fill comment
addhl -group /yaml/code regex ^(---|\.\.\.)$ 0:meta
addhl -group /yaml/code regex ^(\h*:\w*) 0:keyword
addhl -group /yaml/code regex \<(true|false|null)\> 0:value
# Commands
# ‾‾‾‾‾‾‾‾
def -hidden _yaml_filter_around_selections %{
eval -draft -itersel %{
exec <a-x>
# remove trailing white spaces
try %{ exec -draft s \h+$ <ret> d }
}
}
def -hidden _yaml_indent_on_new_line %{
eval -draft -itersel %{
# preserve previous line indent
try %{ exec -draft <space> K <a-&> }
# filter previous line
try %{ exec -draft k : _yaml_filter_around_selections <ret> }
# copy '#' comment prefix and following white spaces
try %{ exec -draft k x s ^\h*\K#\h* <ret> y j p }
# indent after :
try %{ exec -draft <space> k x <a-k> :$ <ret> j <a-gt> }
}
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=yaml %{
addhl ref yaml
hook window InsertEnd .* -group yaml-hooks _yaml_filter_around_selections
hook window InsertChar \n -group yaml-indent _yaml_indent_on_new_line
}
hook global WinSetOption filetype=(?!yaml).* %{
rmhl yaml
rmhooks window yaml-indent
rmhooks window yaml-hooks
}