kakoune/rc/extra/moon.kak
2016-02-27 17:46:39 +01:00

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# http://moonscript.org
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# require commenting.kak
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufSetOption mimetype=text/x-moon %{
set buffer filetype moon
}
hook global BufCreate .*[.](moon) %{
set buffer filetype moon
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
addhl -group / regions -default code moon \
double_string '"' (?<!\\)(\\\\)*" '' \
single_string "'" (?<!\\)(\\\\)*' '' \
comment '--' '$' '' \
addhl -group /moon/double_string fill string
addhl -group /moon/double_string regions regions interpolation \Q#{ \} \{
addhl -group /moon/double_string/regions/interpolation fill meta
addhl -group /moon/single_string fill string
addhl -group /moon/comment fill comment
addhl -group /moon/code regex ([.\\](?=[A-Za-z]\w*))|(\b[A-Za-z]\w*:)|(\b[A-Za-z]\w*\K!+)|(\W\K[@:][A-Za-z]\w*) 0:identifier
addhl -group /moon/code regex \<(and|break|catch|class|continue|do|else(if)?|export|extends|false|finally|for|from|if|import|in|local|nil|not|or|return|super|switch|then|true|try|unless|using|when|while|with)\> 0:keyword
# Commands
# ‾‾‾‾‾‾‾‾
def -hidden _moon_filter_around_selections %{
eval -draft -itersel %{
exec <a-x>
# remove trailing white spaces
try %{ exec -draft s \h + $ <ret> d }
}
}
def -hidden _moon_indent_on_char %{
eval -draft -itersel %{
# align _else_ statements to start
try %{ exec -draft <a-x> <a-k> ^ \h * (else(if)?) $ <ret> <a-\;> <a-?> ^ \h * (if|unless|when) <ret> s \A | \Z <ret> \' <a-&> }
# align _when_ to _switch_ then indent
try %{ exec -draft <a-x> <a-k> ^ \h * (when) $ <ret> <a-\;> <a-?> ^ \h * (switch) <ret> s \A | \Z <ret> \' <a-&> \' <space> <gt> }
# align _catch_ and _finally_ to _try_
try %{ exec -draft <a-x> <a-k> ^ \h * (catch|finally) $ <ret> <a-\;> <a-?> ^ \h * (try) <ret> s \A | \Z <ret> \' <a-&> }
}
}
def -hidden _moon_indent_on_new_line %{
eval -draft -itersel %{
# preserve previous line indent
try %{ exec -draft K <a-&> }
# filter previous line
try %{ exec -draft k : _moon_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 start structure
try %{ exec -draft k x <a-k> ^ \h * (class|else(if)?|for|if|switch|unless|when|while|with) \b | ([:=]|[-=]>) $ <ret> j <a-gt> }
# deindent after return statements
try %{ exec -draft k x <a-k> ^ \h * (break|return) \b <ret> j <a-lt> }
}
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=moon %{
addhl ref moon
hook window InsertEnd .* -group moon-hooks _moon_filter_around_selections
hook window InsertChar .* -group moon-indent _moon_indent_on_char
hook window InsertChar \n -group moon-indent _moon_indent_on_new_line
set window comment_line_chars '--'
set window comment_selection_chars ''
}
hook global WinSetOption filetype=(?!moon).* %{
rmhl moon
rmhooks window moon-indent
rmhooks window moon-hooks
}