(www-parse-string-as-space-separated-char-list): Expect `string' not
to be decoded by `decode-uri-string'.
(www-parse-string-as-space-separated-ids): Likewise.
(www-feature-parse-string): Likewise.
(www-set-display-char-desc): Expect `uri-char' not to be decoded by
`decode-uri-string'.
(www-set-display-feature-desc): Fix problem when `name@lang' is not
existed.
(www-batch-set): Don't use `decode-uri-string' for value of `char' and
feature-value.

(www-edit-display-char-desc): Expect `uri-char' not to be decoded by
`decode-uri-string'.
(www-batch-edit): Don't use `decode-uri-string' for value of `char'.

(www-display-char-desc): Expect `uri-char' to be encoded as %XX
encoding; encode `uri-char' if it is a non-encoded character.
(www-batch-view): Don't use `decode-uri-string' for value of `char'.

(www-uri-decode-char): Expect char-rep to be encoded as URI.
(www-uri-encode-char): Encode UCS characters as %XX encoding.
(www-format-feature-name-as-CCS): Insert space between prefix (...,
===>, ==>, =>, =>>, =>>>, ..., =) and main-name.
(www-html-display-text): Don't escape "&" except "&GT-".

update.

(www-parse-string-as-space-separated-ids): New function.
(www-parse-string-as-ku-ten): New function.
(www-feature-parse-string): Support `space-separated-ids' and
`ku-ten'.

update.

(www-feature-value-format): Return 'space-separated-ids for
`structure' type features.
(www-format-value-as-ids): New function.
(www-format-apply-value): Use `www-format-value-as-ids' for format
`space-separated-ids'.

New file.

New files.