kakoune/rc/json.kak

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# http://json.org
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufSetOption mimetype=text/x-json %{
set buffer filetype json
}
hook global BufCreate .*[.](json) %{
set buffer filetype json
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
addhl -group / regions -default code json \
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string '"' (?<!\\)(\\\\)*" ''
addhl -group /json/string fill string
addhl -group /json/code regex \<(true|false|null)\> 0:value
# Commands
# ‾‾‾‾‾‾‾‾
def -hidden _json_filter_around_selections %{
# remove trailing white spaces
try %{ exec -draft -itersel <a-x> s \h+$ <ret> d }
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}
def -hidden _json_indent_on_char "
eval -draft -itersel %_
# align closer token to its opener when alone on a line
try %/ exec -draft <a-h> <a-k> ^\h+[]}]$ <ret> m s \`|.\' <ret> 1<a-&> /
_
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"
def -hidden _json_indent_on_new_line "
eval -draft -itersel '
# preserve previous line indent
try %{ exec -draft <space> K <a-&> }
# filter previous line
try %{ exec -draft k : _json_filter_around_selections <ret> }
# indent after lines beginning with opener token
try %_ exec -draft k x <a-k> ^\h*[[{] <ret> j <a-gt> _
'
"
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=json %{
addhl ref json
hook window InsertEnd .* -group json-hooks _json_filter_around_selections
hook window InsertChar .* -group json-indent _json_indent_on_char
hook window InsertChar \n -group json-indent _json_indent_on_new_line
}
hook global WinSetOption filetype=(?!json).* %{
rmhl json
rmhooks window json-indent
rmhooks window json-hooks
}