2002-12-15  Morten Welinder  <terra@diku.dk>

	* src/expr.c (gnm_expr_as_gstring): New function.

	* src/rendered-value.c (rendered_value_new): Use
	gnm_expr_as_gstring to avoid extra copy of result.  Use
	string_get_nocopy to avoid yet another copy.
	(cell_get_entered_text): Use gnm_expr_as_gstring to avoid extra
	copy of result.


plus parts of this one:

2002-12-13  Morten Welinder  <terra@diku.dk>

	* src/value.c (value_get_as_gstring): New function.
	(value_get_as_string): Use that.

	* src/expr.c (do_expr_as_string): Use value_get_as_gstring.

	* src/xml-io.c (gnumeric_xml_read_workbook): Grammar fix.

	* src/parse-util.h (struct _GnmExprConventions): New members
 	expr_name_handler, output_sheet_name_sep, output_argument_sep,
 	output_array_col_sep, and output_translated.  Eliminate
 	use_locale_C.

	* src/expr.c (do_expr_as_string): Use new expr_name_handler in
	conventions.

	* src/parse-util.c (def_expr_name_handler): New function, mostly
	extracted from do_expr_as_string.
	(gnm_expr_conventions_new): Attach def_expr_name_handler.