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" Vim auto-load script
" Author: Peter Odding <peter@peterodding.com>
" Last Change: September 4, 2011
" URL: http://peterodding.com/code/vim/misc/
function! xolox#misc#buffer#is_empty()
" Check if the current buffer is an empty, unchanged buffer which can be reused.
return !&modified && expand('%') == '' && line('$') <= 1 && getline(1) == ''
endfunction
function! xolox#misc#buffer#prepare(bufname)
let bufname = '[' . a:bufname . ']'
let buffers = tabpagebuflist()
call map(buffers, 'fnamemodify(bufname(v:val), ":t:r")')
let idx = index(buffers, bufname)
if idx >= 0
execute (idx + 1) . 'wincmd w'
elseif !(xolox#misc#buffer#is_empty() || expand('%:t') == bufname)
vsplit
endif
silent execute 'edit' fnameescape(bufname)
lcd " clear working directory
setlocal buftype=nofile bufhidden=hide noswapfile
let &l:statusline = bufname
call xolox#misc#buffer#unlock()
silent %delete
endfunction
function! xolox#misc#buffer#lock()
" Lock a special buffer so it can no longer be edited.
setlocal readonly nomodifiable nomodified
endfunction
function! xolox#misc#buffer#unlock()
" Unlock a special buffer so that its content can be updated.
setlocal noreadonly modifiable
endfunction
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