🚀 go-pugleaf

In text-mode M-a does backward-sentence. (moves to the first character
of the current sentence) In C-mode these same key strokes move to the
begining of the function instead of to the begin of the sentance?

I am trying to write a macro to correct a problem with the code
produced in c-mode. currently my c-mode produce code like

foo()
{
	if (foo)
		{
			this is wrong;
		}
}

what I want is 

foo()
{
	if (foo)
		{
		this is correct;
		}
}


what I want my macro to do is go to the begining of the current
sentence and delete the extra tabs/spaces. what would be even better
is this macro could correct all the formating errors for the current
buffer. 

Any ideas?
thanks in advance Andy

P.s. I am using gnuemacs 18.55 on a sun workstation sunos 4.1
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                 "bede-bede-bede Thats all Folks"
                            Porky Pig