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From: Richard Stallman <rms@gnu.org>
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Subject: Re: Honesty with parse-partial-sexp
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    2006-12-07  Alan Mackenzie  <acm@muc.de>

	    * syntax.texi (Parsing Balanced Expressions): Document the car of
	    the ninth element returned by parse-partial-sexp.

I think this is a good idea.  The meaning of this is simple and useful.
And if we ever want to change the data passed along from one call to
parse-partial-sexp to the next, we still can.

However, I think this text is not exactly right:

    ! This element is a list.  Its car is the character position of the
    ! start of the outermost parenthetical grouping containing the stopping
    ! point; @code{nil} if none.

Isn't it really the outermost parenthetical grouping that begins in
the text that was parsed?