2000-05-01  Jody Goldberg <jgoldberg@home.com>

	* ExprName -> NamedExpression
	  ArrayRef -> ExprArray

	change ExprTree to be a union of similar types and split
	the elements into discrete types.
	    ExprConstant
	    ExprFunction
	    ExprUnary
	    ExprBinary
	    ExprName
	    ExprVar
	    ExprArray

	    expr->oper -> expr->any.oper

2000-04-29  Jody Goldberg <jgoldberg@home.com>

	* src/value.c (value_new_empty) : Don't allocate any memory.
	(value_release) : Don't free any either.

	* src/sheet-style.c (border_check) : Init outer_style to remove a
	  warning.