" $Id$
se nocp
se ts=2
se bs=2
se sw=2
se expandtab
se ruler
se cindent
se cinkeys=0{,0},0),:,!^F,o,O,e
se showcmd
se go=agilmrtT
se hlsearch
se incsearch
se ignorecase
se smartcase
se shm=aot
se laststatus=2
syn enable
if has("gui_running")
  se guifont=Bitstream\ Vera\ Sans\ Mono\ 12
  colo darkblue
endif
highlight StatusLine guifg=white guibg=blue ctermbg=white ctermfg=blue
if has("win32")
  se guifont=Bitstream_Vera_Sans_Mono:h10:cANSI
endif
:autocmd!

" Set up our variables.
fun! Iain_Vars()
  if ! exists("b:iainlist") | let b:iainlist = 0 | endif
  if ! exists("b:iainhex") | let b:iainhex = 1 | endif
endfun

fun! Cycle_List()
  call Iain_Vars()
  let b:iainlist = b:iainlist + 1
  if b:iainlist > 2 | let b:iainlist = 0 | endif
  if b:iainlist == 0
    set nolist
  elseif b:iainlist == 1
    set lcs=tab:\\_,trail:_,extends:<,precedes:>
    set list
  else
    set lcs=tab:\\_,trail:_,extends:<,precedes:>,eol:$
    set list
  endif
endfun

fun! Show_List()
  call Iain_Vars()
  if b:iainlist == 0
    " No list.
    return " "
  elseif b:iainlist == 1
    " Just tabs.
    return "_"
  else
    " Full list.
    return "\$"
  endif
endfun

" Cycle between hex and decimal display of toolbar stuff.
fun! Cycle_StatusLine()
  call Iain_Vars()
  let b:iainhex = ! b:iainhex
  if b:iainhex
    set statusline=%2n\:\ %<%f\ [%{Show_List()}%{Show_Case()}%{Show_Tabstop()}%Y%M%R]\ %=0\x%02B\ (%3.6c,%-4.6l)\ 0\x%04.6O\ \|\ %4.6L\ %P
  else
    set statusline=%2n\:\ %<%f\ [%{Show_List()}%{Show_Case()}%{Show_Tabstop()}%Y%M%R]\ %=%b\ (%3.6c,%-4.6l)\ %4.6o\ \|\ %4.6L\ %P
  endif
endfun

" Save the current window width so if we change it we can restore it
" when we quit.
let andyoldcols=&columns

" This expands the terminal to display two 80-column files side-by-side
" when vim is opened in diff mode.
if &diff | let &columns = 164 | endif

map <C-"> viwvbi"<ESC>ea"<ESC>
map - yyp:s/./-/g<RETURN>:let @/=''<RETURN>:<RETURN>
map = yyp:s/./=/g<RETURN>:let @/=''<RETURN>:<RETURN>
command! W :w
se tags=~/.ctags

fun! Invert_Case()
  let &ic = ! &ic
endfun

fun! Show_Case()
  if &ic | return "c" | else | return "C" | endif
endfun

fun! Show_Tabstop()
  return &ts
endfun

" Clear Q as we will use it for commands.
map Q <Nop>

" Swap hex/decimal statusline with Qx
map Qx :call Cycle_StatusLine()<CR>:<CR>
" Swap case-sensitivity with Qc.
map Qc :call Invert_Case()<CR>:<CR>
" Cycle list styles with Ql.
map Ql :call Cycle_List()<CR>:<CR>
" Change to ts=2 with Q2.
map Q2 :se ts=2<CR>:<CR>
" Change to ts=4 with Q4.
map Q4 :se ts=4<CR>:<CR>
" Change to ts=8 with Q8.
map Q8 :se ts=8<CR>:<CR>

" Vim 7 has tabs.  Default "next tab" mapping is gt.  Add "previous tab" as gb.
map gb :tabPrev<CR>

call Cycle_StatusLine()

au VimLeave * if exists("andyoldcols") | let &columns=andyoldcols | endif

" Autocommands to setup features we only want in certain modes...

" ... For C/C++ files:

au BufEnter * if &ft == "c" || &ft == "cpp" | call CMode_map() | endif
au BufLeave * if &ft == "c" || &ft == "cpp" | call CMode_unmap() | endif

" ... For Perl files:

au BufEnter * if &ft == "perl" | call PerlMode_map() | endif
au BufLeave * if &ft == "perl" | call PerlMode_unmap() | endif

" ... For makefiles:

au BufEnter * if &ft == "make" | call MakeMode_map() | endif
au BufLeave * if &ft == "make" | call MakeMode_unmap() | endif

" Functions to call when we enter/leave a programming language buffer...

" ... For C-like languages:

fun! CMode_map()
  set cinkeys=0{,0},:,0#,!^F,o,O,e
  set cinwords=if,else,while,do,for,switch
endfun

fun! CMode_unmap()
endfun

" .. For Perl files:

fun! PerlMode_map()
  set cinkeys=0{,0},:,!^F,o,O,e
  set cinwords=if,else,while,do,for,eval
endfun

fun! PerlMode_unmap()
  set foldmethod=manual
endfun

" ... For makefiles:

fun! MakeMode_map()
  set list
  set noexpandtab
endfun

fun! MakeMode_unmap()
  set nolist
  set expandtab
endfun