kakoune/rc/extra/coffee.kak

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# http://coffeescript.org
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](coffee) %{
set-option buffer filetype coffee
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/coffee regions
add-highlighter shared/coffee/code default-region group
add-highlighter shared/coffee/single_string region "'" "'" '' fill string
add-highlighter shared/coffee/single_string_alt region "'''" "'''" '' fill string
add-highlighter shared/coffee/double_string region '"' (?<!\\)(\\\\)*" '' regions
add-highlighter shared/coffee/double_string_alt region '"""' '"""' '' ref shared/coffee/double_string
add-highlighter shared/coffee/regex region '/' (?<!\\)(\\\\)*/[gimy]* '' regions
add-highlighter shared/coffee/regex_alt region '///' ///[gimy]* '' ref shared/coffee/regex
add-highlighter shared/coffee/comment1 region '#' '$' '' fill comment
add-highlighter shared/coffee/comment2 region '###' '###' '' fill comment
# Regular expression flags are: g → global match, i → ignore case, m → multi-lines, y → sticky
# https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
add-highlighter shared/coffee/double_string/base default-region fill string
add-highlighter shared/coffee/double_string/interpolation region \Q#{ \} \{ fill meta
add-highlighter shared/coffee/regex/base default-region fill meta
add-highlighter shared/coffee/regex/interpolation region \Q#{ \} \{ fill meta
# Keywords are collected at
# https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Keywords
# http://coffeescript.org/documentation/docs/lexer.html#section-63
add-highlighter shared/coffee/code/ regex [$@]\w* 0:variable
add-highlighter shared/coffee/code/ regex \b(Array|Boolean|Date|Function|Number|Object|RegExp|String)\b 0:type
add-highlighter shared/coffee/code/ regex \b(document|false|no|null|off|on|parent|self|this|true|undefined|window|yes)\b 0:value
add-highlighter shared/coffee/code/ regex \b(and|is|isnt|not|or)\b 0:operator
add-highlighter shared/coffee/code/ regex \b(break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally|for|function|if|implements|import|in|instanceof|interface|let|native|new|package|private|protected|public|return|static|super|switch|throw|try|typeof|var|void|while|with|yield)\b 0:keyword
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden coffee-filter-around-selections %{
evaluate-commands -draft -itersel %{
execute-keys <a-x>
# remove trailing white spaces
try %{ execute-keys -draft s \h + $ <ret> d }
}
}
define-command -hidden coffee-indent-on-new-line %{
evaluate-commands -draft -itersel %{
# copy '#' comment prefix and following white spaces
try %{ execute-keys -draft k <a-x> s '^\h*\K#\h*' <ret> y gh j P }
# preserve previous line indent
try %{ execute-keys -draft \; K <a-&> }
# filter previous line
try %{ execute-keys -draft k : coffee-filter-around-selections <ret> }
# indent after start structure
try %{ execute-keys -draft k <a-x> <a-k> ^ \h * (case|catch|class|else|finally|for|function|if|switch|try|while|with) \b | (=|->) $ <ret> j <a-gt> }
}
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook -group coffee-highlight global WinSetOption filetype=coffee %{ add-highlighter window/coffee ref coffee }
hook global WinSetOption filetype=coffee %{
hook window ModeChange insert:.* -group coffee-hooks coffee-filter-around-selections
hook window InsertChar \n -group coffee-indent coffee-indent-on-new-line
}
hook -group coffee-highlight global WinSetOption filetype=(?!coffee).* %{ remove-highlighter window/coffee }
hook global WinSetOption filetype=(?!coffee).* %{
remove-hooks window coffee-indent
remove-hooks window coffee-hooks
}