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" Vim auto-load script
" Author: Peter Odding <peter@peterodding.com>
" Last Change: April 18, 2013
" URL: http://peterodding.com/code/vim/misc/
function! xolox#misc#buffer#is_empty() " {{{1
" 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(...) " {{{1
" Open a special buffer (with generated contents, not directly edited by the user).
if a:0 == 1 && type(a:1) == type('')
" Backwards compatibility with old interface.
let options = {'name': a:1, 'path': a:1}
elseif type(a:1) == type({})
let options = a:1
else
throw "Invalid arguments"
endif
let winnr = 1
let found = 0
for bufnr in tabpagebuflist()
if xolox#misc#path#equals(options['path'], bufname(bufnr))
execute winnr . 'wincmd w'
let found = 1
break
else
let winnr += 1
endif
endfor
if !(found || xolox#misc#buffer#is_empty())
vsplit
endif
silent execute 'edit' fnameescape(options['path'])
lcd " clear working directory
setlocal buftype=nofile bufhidden=hide noswapfile
let &l:statusline = '[' . options['name'] . ']'
call xolox#misc#buffer#unlock()
silent %delete
endfunction
function! xolox#misc#buffer#lock() " {{{1
" Lock a special buffer so it can no longer be edited.
setlocal readonly nomodifiable nomodified
endfunction
function! xolox#misc#buffer#unlock() " {{{1
" Unlock a special buffer so that its content can be updated.
setlocal noreadonly modifiable
endfunction
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