editvar.vim

" Edits vim variables in buffer.
" Version: 1.0
" Author : thinca <thinca+vim@gmail.com>
" License: zlib License

if exists('g:loaded_editvar')
  finish
endif
let g:loaded_editvar = 1

let s:save_cpo = &cpo
set cpo&vim

function! s:save(var)
  let {a:var} = eval(join(getline(1, '$'), ''))
  setlocal nomodified
endfunction

function! s:editvar(var)
  if exists(a:var)
    let value = eval(a:var)
  else
    let value = ''
  endif
  if exists('*PP')
    let v = PP(value)
    unlet value
    let value = v
  endif
  new `='editvar://' . a:var`
  setlocal filetype=vim buftype=acwrite
  if exists(a:var)
    put =value
  endif
  let b:editvar_name = a:var

  augroup plugin-editvar
    autocmd!
    autocmd BufWriteCmd <buffer> call s:save(b:editvar_name)
  augroup END
endfunction

command! -bar -nargs=1 -complete=var Editvar call s:editvar(<q-args>)

let &cpo = s:save_cpo
unlet s:save_cpo