Если вы не хотите устанавливать документы ruby tagbar, предложите:https://github.com/majutsushi/tagbar/wiki
let g:tagbar_type_coffee = {
\ 'ctagstype' : 'coffee',
\ 'kinds' : [
\ 'c:classes',
\ 'm:methods',
\ 'f:functions',
\ 'v:variables',
\ 'f:fields',
\ ]
\ }
" Posix regular expressions for matching interesting items. Since this will
" be passed as an environment variable, no whitespace can exist in the options
" so [:space:] is used instead of normal whitespaces.
" Adapted from: https://gist.github.com/2901844
let s:ctags_opts = '
\ --langdef=coffee
\ --langmap=coffee:.coffee
\ --regex-coffee=/(^|=[ \t])*class ([A-Za-z_][A-Za-z0-9_]+\.)*([A-Za-z_][A-Za-z0-9_]+)( extends ([A-Za-z][A-Za-z0-9_.]*)+)?$/\3/c,class/
\ --regex-coffee=/^[ \t]*(module\.)?(exports\.)?@?(([A-Za-z][A-Za-z0-9_.]*)+):.*[-=]>.*$/\3/m,method/
\ --regex-coffee=/^[ \t]*(module\.)?(exports\.)?(([A-Za-z][A-Za-z0-9_.]*)+)[ \t]*=.*[-=]>.*$/\3/f,function/
\ --regex-coffee=/^[ \t]*(([A-Za-z][A-Za-z0-9_.]*)+)[ \t]*=[^->\n]*$/\1/v,variable/
\ --regex-coffee=/^[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)[ \t]*=[^->\n]*$/\1/f,field/
\ --regex-coffee=/^[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+):[^->\n]*$/\1/f,static field/
\ --regex-coffee=/^[ \t]*(([A-Za-z][A-Za-z0-9_.]*)+):[^->\n]*$/\1/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?/\3/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){0}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){1}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){2}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){3}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){4}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){5}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){6}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){7}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){8}/\8/f,field/
\ --regex-coffee=/((constructor|initialize):[ \t]*\()@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?(,[ \t]*@(([A-Za-z][A-Za-z0-9_.]*)+)([ \t]*=[ \t]*[^,)]+)?){9}/\8/f,field/'
let $CTAGS = substitute(s:ctags_opts, '\v\\([nst]\)', '\\\\\1', 'g')