                                    java.lang.String&nbsp;script,
                                                  java.lang.String&nbsp;language)</PRE>
<DL>
<DD>Perform substitutions on characters to effect glyph substitution. If some substitution is performed, it
 entails mapping from one or more input characters denoting textual character information to one or more
 output character codes denoting glyphs in this font, where the output character codes may make use of
 private character code values that h