(ids-parse-terminal): Use `encode-char' instead of

(ids-parse-terminal): Use `encode-char' instead of
`get-char-attribute'; use `=ucs' and `=big5-cdp' instead of `ucs' and
`chinese-big5-cdp'.
(ids-parse-op-2): Use `encode-char' instead of `get-char-attribute';
use `=ucs' instead of `ucs'.