Code folding with Vim

I've learned about code folding using Vim.

The command zfa} collapses (folds) a C block using the } symbol as guide.

The following code maps the Spacebar to a function that folds/unfolds the current block (add this to ~/.vimrc), based on this.

"Fold coloring 

hi Folded        ctermfg=white ctermbg=NONE

fun! ToggleFold()

if foldclosed('.') < 0

". foldclose

:execute "normal zfa}<cr>"

else

. foldopen

endif

" Clear status line

echo 

endfun

" Map fold/unfold function to Space key.

"nmap <space> zfa}<cr>

"nmap <space> :call ToggleFold()<cr>

noremap <space> :call ToggleFold()<cr>

Here there is a more sophisticated function for folding.

vmap <space> zf

" inspired by Max Ischenko's http://www.vim.org/tips/tip.php?tip_id=108

function ToggleFold()

   if foldlevel('.') == 0

      " No fold exists at the current line,

      " so create a fold based on braces

      let x = line('.')    " the current line number

      normal 0

      call search("{")

      normal %

      let y = line('.')    " the current line number

      " Create the fold from x to y

      execute x . "," . y . " fold"

   else

      " Delete the fold on the current line

      normal zd

   endif

endfunction

nmap <space> :call ToggleFold()<cr>