If encryption is successful, it replaces the current region contents (in
the accessible portion) with the resulting data.
-If optional argument @var{sign} is non-nil, the function is request to
-do a combined sign and encrypt. This currently only work with GnuPG.
+If optional argument @var{sign} is non-@code{nil}, the function is
+request to do a combined sign and encrypt. This currently only work
+with GnuPG.
@end deffn
@deffn Command pgg-decrypt-region start end
@deffn Method pgg-scheme-encrypt-region scheme start end recipients &optional sign
Encrypt the current region between @var{start} and @var{end} for
-@var{recipients}. If @var{sign} is non-nil, do a combined sign and
-encrypt. If encryption is successful, it returns @code{t}, otherwise
-@code{nil}.
+@var{recipients}. If @var{sign} is non-@code{nil}, do a combined sign
+and encrypt. If encryption is successful, it returns @code{t},
+otherwise @code{nil}.
@end deffn
@deffn Method pgg-scheme-decrypt-region scheme start end