[vim] add plugins for Racket and fzf

.gitmodules

@@ -94,3 +94,12 @@
 [submodule ".vim/pack/alpha/start/vim-sexp"]
 	path = .vim/pack/alpha/start/vim-sexp
 	url = git@github.com:guns/vim-sexp.git
+[submodule ".vim/pack/alpha/start/fzf.vim"]
+	path = .vim/pack/alpha/start/fzf.vim
+	url = git@github.com:junegunn/fzf.vim.git
+[submodule ".vim/pack/alpha/start/scribble.vim"]
+	path = .vim/pack/alpha/start/scribble.vim
+	url = git@github.com:vim-scripts/scribble.vim.git
+[submodule ".vim/pack/alpha/start/rainbow_parentheses.vim"]
+	path = .vim/pack/alpha/start/rainbow_parentheses.vim
+	url = git@github.com:kien/rainbow_parentheses.vim.git

.vim/after/ftplugin/racket.vim

@@ -0,0 +1 @@
+au VimEnter * RainbowParenthesesToggle

.vim/after/ftplugin/ruby.vim

@@ -1 +1,2 @@
+highlight rubyDefine ctermbg=235
 set foldmethod=syntax

.vim/after/ftplugin/scribble.vim

@@ -0,0 +1 @@
+set makeprg=scribble\ --dest\ scribble\ %

.vim/ftdetect/scribble.vim

@@ -0,0 +1 @@
+au BufRead,BufNewFile *.scrbl set filetype=scribble

.vim/pack/alpha/start/fzf.vim

@@ -0,0 +1 @@
+Subproject commit f31a2925fee37b4b5f9a3fa115df4ae99a2a027c

.vim/pack/alpha/start/rainbow_parentheses.vim

@@ -0,0 +1 @@
+Subproject commit eb8baa5428bde10ecc1cb14eed1d6e16f5f24695

.vim/pack/alpha/start/scribble.vim

@@ -0,0 +1 @@
+Subproject commit 73cef95895420c64b988ef11f79a75d1058e26f7

.vimrc

@@ -144,27 +144,10 @@ nnoremap <leader>a :A<cr>
 " dispatch
 nnoremap <leader>d :Dispatch<cr>
 
-" lightline
+" fzf
-let g:lightline = {
+if isdirectory('/usr/local/opt/fzf')
-      \ 'component': {
+  set rtp+=/usr/local/opt/fzf
-      \   'lineinfo': ' %3l:%-2v',
+  nmap <Leader>b :Buffers<CR>
-      \ },
+  nmap <Leader>f :Files<CR>
-      \ 'component_function': {
+  nmap <Leader>t :Tags<CR>
-      \   'readonly': 'LightlineReadonly',
-      \   'fugitive': 'LightlineFugitive'
-      \ },
-      \ 'separator': { 'left': '', 'right': '' },
-      \ 'subseparator': { 'left': '', 'right': '' }
-      \ }
-
-function! LightlineReadonly()
-  return &readonly ? '' : ''
-endfunction
-
-function! LightlineFugitive()
-  if exists('*fugitive#head')
-    let branch = fugitive#head()
-    return branch !=# '' ? ''.branch : ''
 endif
-  return ''
-endfunction