ref: 3c33cd2228df8e1c040090c5ee7a086d772739b9
dir: /lib/vimfiles/ftplugin.vim/
" Vim support file to switch on loading plugins for file types
"
" Maintainer: Bram Moolenaar <Bram@vim.org>
" Last change: 2006 Apr 30
if exists("did_load_ftplugin")
finish
endif
let did_load_ftplugin = 1
augroup filetypeplugin
au FileType * call s:LoadFTPlugin()
func! s:LoadFTPlugin()
if exists("b:undo_ftplugin")
exe b:undo_ftplugin
unlet! b:undo_ftplugin b:did_ftplugin
endif
let s = expand("<amatch>")
if s != ""
if &cpo =~# "S" && exists("b:did_ftplugin")
" In compatible mode options are reset to the global values, need to
" set the local values also when a plugin was already used.
unlet b:did_ftplugin
endif
" When there is a dot it is used to separate filetype names. Thus for
" "aaa.bbb" load "aaa" and then "bbb".
for name in split(s, '\.')
exe 'runtime! ftplugin/' . name . '.vim ftplugin/' . name . '_*.vim ftplugin/' . name . '/*.vim'
endfor
endif
endfunc
augroup END