au BufNewFile,BufRead *.{js,jsm,es,es6},Jakefile setf javascript fun! s:SourceFlowSyntax() if !exists('javascript_plugin_flow') && !exists('b:flow_active') && \ search('\v\C%^\_s*%(//\s*|/\*[ \t\n*]*)\@flow>','nw') runtime extras/flow.vim let b:flow_active = 1 endif endfun au FileType javascript au BufRead,BufWritePost call s:SourceFlowSyntax() fun! s:SelectJavascript() if getline(1) =~# '^#!.*/bin/\%(env\s\+\)\?node\>' set ft=javascript endif endfun au BufNewFile,BufRead * call s:SelectJavascript()