" Vim plugin -- last-position-jump improved (esp. for Easy Vim)
" File:		lastpos.vim
" Created:	2010 Mar 24
" Last Change:	2010 Mar 31
" Rev Days:     3
" Author:       Andy Wokula <anwoku@yahoo.de>
"
" TODO
" + how can we be sure that <C-R>=... will be executed in Insert mode?
"   ! use intermediate <Plug>LastPos
" + why is :normal! g`" wrapped with :exec?
"   ! once the code was a one-liner
" + use this assumption:
"   if not present, Vim will initialize the '"'-mark with [0,1,1,0]
"   :au BufReadPost * echomsg string(getpos("'\""))
" + don't move the cursor if another plugin already moved it
" + don't move the cursor for special buffers (buftype not empty) [1]

" [1] added, although jumping to help tags seems to work without this
"     guard

map          <Plug>LastPos <Nop>
cmap         <Plug>LastPos <Nop>
ino <silent> <Plug>LastPos <C-R>=''[setpos('.',getpos("'\""))]<CR>

augroup LastPos
    au! BufReadPost * call s:LastPos(&insertmode)
augroup END

func! s:LastPos(mode)
    if a:mode == 2
        au! LastPos InsertEnter
        call feedkeys("\<Plug>LastPos")
        return
    endif
    let m = "'\""
    if getpos(m) != [0,1,1,0] && line(m) <= line("$")
        \ && getpos(".") == [0,1,1,0]
        \ && &buftype == ""
        if a:mode == 1
            au LastPos InsertEnter * call s:LastPos(2)
        else
            normal! g`"
        endif
    endif
endfunc

" vim:et tw=72: