Scripting the enter key

Hi all, I'm trying to write a function to make smarter line breaking when I split a pair of parentheses or braces.  For example, with the text:

func ()

(The cursor is on the closing parentheses), when I hi enter, I'd like to end with the following state:

func (

  _

)

In this case, the closing parentheses gets pushed down one line, and I end up on the following line with correct indentation following my settings.

I've written a script to accomplish this, but the indentation is always borked (It always starts at column 0).  Could anyone help me with pointers?

function BraceSpace()

  if col(".") < 2

    iunmap <CR>

    if col(".") == col("$")

      :execute "normal a\<CR>"

    else

      :execute "normal i\<CR>"

    endif

    imap <CR> <C-\><C-O>:call BraceSpace()<CR>

    return

  endif

  let l:cursorchar = getline(".")[col(".") - 1]

  if cursorchar != '}'

    iunmap <CR>

    if col(".") == col("$")

      :execute "normal a\<CR>"

    else

      :execute "normal i\<CR>"

    endif

    imap <CR> <C-\><C-O>:call BraceSpace()<CR>

    return

  endif

  let l:lastchar = getline(".")[col(".") - 2]

  if lastchar != '{'

    iunmap <CR>

    if col(".") == col("$")

      :execute "normal a\<CR>"

    else

      :execute "normal i\<CR>"

    endif

    imap <CR> <C-\><C-O>:call BraceSpace()<CR>

    return

  endif

  iunmap <CR>

  :execute "normal i\<CR>\<C-O>k\<C-O>o"

  imap <CR> <C-\><C-O>:call BraceSpace()<CR>

endfunction

imap <CR> <C-\><C-O>:call BraceSpace()<CR>

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