function! MyModified()
	return &ft =~ 'help' ? '' : &modified ? '+' : &modifiable ? '' : '-'
endfunction

function! MyReadonly()
	return &ft !~? 'help' && &readonly ? 'RO' : ''
endfunction

function! MyFilename()
	let fname = expand('%:t')
	return fname == 'ControlP' ? g:lightline.ctrlp_item :
				\ fname == '__Tagbar__' ? g:lightline.fname :
				\ fname =~ '__Gundo\|NERD_tree' ? '' :
				\ &ft == 'vimfiler' ? vimfiler#get_status_string() :
				\ &ft == 'unite' ? unite#get_status_string() :
				\ &ft == 'vimshell' ? vimshell#get_status_string() :
				\ ('' != MyReadonly() ? MyReadonly() . ' ' : '') .
				\ ('' != fname ? fname : '[No Name]') .
				\ ('' != MyModified() ? ' ' . MyModified() : '')
endfunction

function! MyFugitive()
	try
		if expand('%:t') !~? 'Tagbar\|Gundo\|NERD' && &ft !~? 'vimfiler' && exists('*fugitive#head')
			let mark = "\ue80a "  " edit here for cool mark
			let _ = fugitive#head()
			return strlen(_) ? mark._ : ''
		endif
	catch
	endtry
	return ''
endfunction

function! MyFileformat()
	return winwidth(0) > 70 ? &fileformat : ''
endfunction

function! MyFiletype()
	return winwidth(0) > 70 ? (strlen(&filetype) ? &filetype : 'no ft') : ''
endfunction

function! MyFileencoding()
	return winwidth(0) > 70 ? (strlen(&fenc) ? &fenc : &enc) : ''
endfunction

function! MyMode()
	let fname = expand('%:t')
	return fname == '__Tagbar__' ? 'Tagbar' :
				\ fname == 'ControlP' ? 'CtrlP' :
				\ fname == '__Gundo__' ? 'Gundo' :
				\ fname == '__Gundo_Preview__' ? 'Gundo Preview' :
				\ fname =~ 'NERD_tree' ? 'NERDTree' :
				\ &ft == 'unite' ? 'Unite' :
				\ &ft == 'vimfiler' ? 'VimFiler' :
				\ &ft == 'vimshell' ? 'VimShell' :
				\ winwidth(0) > 60 ? lightline#mode() : ''
endfunction

function! MyGitGutter()
	if ! exists('*GitGutterGetHunkSummary')
				\ || ! get(g:, 'gitgutter_enabled', 0)
				\ || winwidth('.') <= 90
		return ''
	endif
	let symbols = [
				\ g:gitgutter_sign_added . ' ',
				\ g:gitgutter_sign_modified . ' ',
				\ g:gitgutter_sign_removed . ' '
				\ ]
	let hunks = GitGutterGetHunkSummary()
	let ret = []
	for i in [0, 1, 2]
		if hunks[i] > 0
			call add(ret, symbols[i] . hunks[i])
		endif
	endfor
	return join(ret, ' ')
endfunction

function! MyQfstatus()
	let qflist = getqflist()
	call filter(qflist, 'v:val.valid != 0')
	if len(qflist) == 0
		return ''
	endif
	return "[ QF: " . len(qflist) . " item(s) ]"
endfunction