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[CSS3 Ruby] i18n comment 4: Vertical layout not enough for bopomofo

From: <ishida@w3.org>
Date: Wed, 19 Sep 2007 15:04:09 +0100
To: www-style@w3.org, public-i18n-core@w3.org
Message-Id: <20070919140148.ADB024F3E9@homer.w3.org>

Comment from the i18n review of:
http://www.w3.org/TR/2003/CR-css3-ruby-20030514/

Comment 4
At http://www.w3.org/International/reviews/0505-css3-ruby/
Editorial/substantive: S
Owner: RI

Location in reviewed document:
4.1 [http://www.w3.org/TR/2003/CR-css3-ruby-20030514/#rubypos]

Comment:
"In order to achieve that effect, vertical-ideographic layout should be set on each individual ruby. That can be accomplished with the following simple CSS rule: ruby.bopomofo { writing-mode: tb-rl }"


This is not sufficient. The accents in bopomofo ruby are not displayed as a unidirectional run of text. Bopomofo accents are non-combining characters that in memory follow the sequence of bopomofo alphabetic characters spelling out a syllable. However, the second to fourth tones are displayed in a separate vertical column to the right of the alphabetic characters, and the neutral tone marker is displayed as a dot above the column of alphabetic characters.
Received on Wednesday, 19 September 2007 14:01:53 GMT

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