. @var{to})}; this says to translate the character @var{from} into
@var{to}.
+The arguments and the forms in each argument are processed in order,
+and if a previous form already translates @var{to} to some other
+character, say @var{to-alt}, @var{from} is also translated to
+@var{to-alt}.
+
You can also map one whole character set into another character set with
the same dimension. To do this, you specify a generic character (which
designates a character set) for @var{from} (@pxref{Splitting Characters}).