dummy?()
Returns true for dummy encodings. A dummy encoding is an encoding for which character handling is not properly implemented. It is used for stateful encodings.
Encoding::ISO_2022_JP.dummy? #=> true Encoding::UTF_8.dummy? #=> false
static VALUE enc_dummy_p(VALUE enc) { return ENC_DUMMY_P(must_encoding(enc)) ? Qtrue : Qfalse; }