updated for version 7.3.456 Problem: ":tab drop file" has several problems, including moving the current window and opening a new tab for a file that already has a window. Solution: Refactor ":tab drop" handling. (Hirohito Higashi)

let encoding = &enc
if encoding == ''
	let encoding = 'utf-8'
endif

if encoding == 'utf-8'
	source <sfile>:p:h/persian-iranian_utf-8.vim
endif