# Detection # ‾‾‾‾‾‾‾‾‾ hook global BufSetOption mimetype=text/x-javascript %{ set buffer filetype javascript } hook global BufCreate .*[.](js) %{ set buffer filetype javascript } # Highlighters # ‾‾‾‾‾‾‾‾‾‾‾‾ addhl -group / regions -default code javascript \ double_string '"' (?<!\\)(\\\\)*" '' \ single_string "'" "'" '' \ comment // '$' '' \ comment /[*] [*]/ '' \ regex / (?<!\\)(\\\\)*/[gimy]* '' # Regular expression flags are: g → global match, i → ignore case, m → multi-lines, y → sticky # https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp addhl -group /javascript/double_string fill string addhl -group /javascript/single_string fill string addhl -group /javascript/regex fill meta addhl -group /javascript/comment fill comment addhl -group /javascript/code regex \$\w* 0:identifier addhl -group /javascript/code regex \<(document|false|null|parent|self|this|true|undefined|window)\> 0:value addhl -group /javascript/code regex \<(Array|Boolean|Date|Function|Number|Object|RegExp|String)\> 0:type # Keywords are collected at # https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Keywords addhl -group /javascript/code regex \<(break|case|catch|class|const|continue|debugger|default|delete|do|else|export|extends|finally|for|function|if|import|in|instanceof|let|new|return|super|switch|throw|try|typeof|var|void|while|with|yield)\> 0:keyword # Commands # ‾‾‾‾‾‾‾‾ def -hidden _javascript_filter_around_selections %{ eval -draft -itersel %{ exec <a-x> # remove trailing white spaces try %{ exec -draft s \h+$ <ret> d } } } def -hidden _javascript_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-&> / _ " def -hidden _javascript_indent_on_new_line " eval -draft -itersel ' # preserve previous line indent try %{ exec -draft <space> K <a-&> } # filter previous line try %{ exec -draft k : _javascript_filter_around_selections <ret> } # copy // comments prefix and following white spaces try %{ exec -draft k x s ^\h*\K#\h* <ret> y j p } # indent after lines beginning / ending with opener token try %_ exec -draft k x <a-k> ^\h*[[{]|[[{]$ <ret> j <a-gt> _ ' " # Initialization # ‾‾‾‾‾‾‾‾‾‾‾‾‾‾ hook global WinSetOption filetype=javascript %{ addhl ref javascript hook window InsertEnd .* -group javascript-hooks _javascript_filter_around_selections hook window InsertChar .* -group javascript-indent _javascript_indent_on_char hook window InsertChar \n -group javascript-indent _javascript_indent_on_new_line } hook global WinSetOption filetype=(?!javascript).* %{ rmhl javascript rmhooks window javascript-indent rmhooks window javascript-hooks }