-(after moving to \fIy\fR, \fIx\fR, if specified).
-The functions with \fIn\fR as the last argument
-insert a leading substring of at most \fIn\fR characters.
-If \fIn\fR<=0, then the entire string is inserted.
+(after moving to \fIy\fP, \fIx\fP, if specified).
+The functions with \fIn\fP as the last argument
+insert a leading substring of at most \fIn\fP characters.
+If \fIn\fP<=0, then the entire string is inserted.