gistfile1.vim

"{{{ taskpaper.vim
map <silent><space>td <Plug>ToggleDone
function! s:OpenTaskPaper()
  let g:Taskpaper_default_path = '/path/to/file'
  execute 'e '.g:Taskpaper_default_path 
  setlocal noswapfile
  setlocal nonumber
  noremap <buffer> <silent> q :close<Cr>
endfunction
nnoremap <silent><space>ts :<C-u>split \| call <SID>OpenTaskPaper()<Cr>
nnoremap <silent><space>tv :<C-u>vsplit \| call <SID>OpenTaskPaper()<Cr>
"}}}

taskpaper.vim

"taskpaper.vim indent file
"soh kitahara

if exists('b:did_indent')                                                                           
  finish
endif
let b:did_indent = 1

setlocal indentexpr=GetTaskpaperIndent()                                                            
setlocal indentkeys+=<:>

function! GetTaskpaperIndent() 
  let pnum = prevnonblank(v:lnum - 1)
  if pnum == 0
    return 0
  endif 
  let line = getline(v:lnum)                                                                        
  let pline = getline(pnum)                                                                         
  let ind = indent(pnum)

  let project = '^.\+:\s*$'                                                                         
  let item = '^\s*[-+]\s\+'                                                                         

  if pline =~ project && pline !~ item
    let ind = ind + &sw
  elseif line =~ project && line !~ item
    let ind = ind - &sw                                                                             
  endif
  return ind
endfunction