1999-03-11  Miguel de Icaza  <miguel@nuclecu.unam.mx>

	* src/clipboard.c (sheet_paste_selection): New routine.  Abstracts
	the paste operation.
	(clipboard_paste_region): Now it uses a clipboard with the active
	X selection instead of defaulting to "request clipboard from X"
	(this is only for inter-workbook copy-paste).

	* src/sheet.c (find_workbook_with_clipboard): Tries to find a
	workbook with clipboard information.  Probably the clipboard
	should be global to all Gnumeric.

	* src/render-ascii.c (cell_region_render_ascii): Free the
	information after we have used it, not before.

	* src/expr.c (eval_expr): Handle new-born recursive references.