rb_econv_decorate_at 1910 transcode.c            return rb_econv_decorate_at(ec, decorator_name, 0);
rb_econv_decorate_at 1916 transcode.c            return rb_econv_decorate_at(ec, decorator_name, 1);
rb_econv_decorate_at 1918 transcode.c        return rb_econv_decorate_at(ec, decorator_name, 0);
rb_econv_decorate_at 1927 transcode.c            return rb_econv_decorate_at(ec, decorator_name, 0);
rb_econv_decorate_at 1933 transcode.c            return rb_econv_decorate_at(ec, decorator_name, ec->num_trans-1);
rb_econv_decorate_at 1935 transcode.c        return rb_econv_decorate_at(ec, decorator_name, ec->num_trans);