- From: MURAKAMI Shinyu <murakami@antenna.co.jp>
- Date: Fri, 19 Jan 2007 04:27:03 +0900
- To: www-style@w3.org
On Fri, 19 Jan 2007 00:35:14 +1300 fantasai <fantasai.lists@inkedblade.net> wrote: > > MURAKAMI Shinyu wrote: > > Hi fantasai, > > thank you very much for replying to my comments. > > > > On Wed, 10 Jan 2007 08:18:53 +1300 > > fantasai <fantasai.lists@inkedblade.net> wrote: > > > >> MURAKAMI Shinyu wrote: > >>> My proposal is to separate "strict" from "normal". The new definition is > >>> the following. > >>> > >>> Name: word-break > >>> Value: normal | strict | keep-all | loose | break-all | break-strict > >>> Initial: normal > >>> > >>> normal > >>> The UA determines what set of line-breaking restrictions. It may be > >>> equivalent to either of 'strict' or 'loose'. > >> The problem with this is that it's not interoperable. (We want CSS > >> implementations to be consistent, which is why 'normal' means one > >> thing only, not a choice of two things.) > > > > But the CSS spec already has many UA dependent things such as > > font-family (initial value: depends on user agent). > > The UA-dependent things tend to be those that are system-dependent. > Fonts, for example, are system-dependent: what font is used depends > on what fonts are available on your system. CSS can't specify the > default value for 'font-family' because there is no font that is > guaranteed to be available on all systems that run a CSS processor. > > > Allowing or disallowing kanas at beginning of line is very trivial thing > > for most people, and the font-family, serif or sans-serif (mincho or > > gothic, in Japanese typefaces), is much more important. > > This setting is too trivial to justify a user preference, and it is not > system-dependent. As far as web authors are concerned, any differences > between implementations are a pain (they want to rely on defaults being > consistent), so we want to minimize the allowance for such differences. > What benefit is there to allowing UAs to have different default values > for word-break? "Strict" line-breaking is not suitable for small screen devices and narrow columns, e.g. newspapers. In such media, "loose" line-breaking has better readability. If default line-breaking is UA-dependent, UA can choose best line-breaking strictness for target media. > > >> While we're on this topic, if you could specify what breaks are disallowed > >> in strict that are allowed in loose, that would be very helpful information > >> to put in the spec. > > > > Antenna House XSL Formatter (yes, I am a developper of it) is an > > implementation of the XSL-FO spec but it has extension properties > > that come from CSS3 draft specs (including the obsolete CSS3-text CR). > > > > Please see the description of the axf:line-break property: > > http://www.antennahouse.com/xslfo/axf4-extension.htm#line-break > > Thank you for the reference. Is it ok with Antenna House if I copy > information from it to CSS3 Text? Yes, but note that the referred Unicode LineBreak data was not recent version. (we have to update...) For the latest version (5.0.0): UAX#14: Line Breaking Properties http://www.unicode.org/reports/tr14/ Line Break property data file http://www.unicode.org/Public/UNIDATA/LineBreak.txt The Nonstarter characters in LineBreak.txt (version 5.0.0): ([JIS] indicates Nonstarter Japanese characters in JIS X 4051) ------------------------------------------------------------------------ 17D6;NS # KHMER SIGN CAMNUC PII KUUH ៖ 203C;NS # DOUBLE EXCLAMATION MARK ‼ 203D;NS # INTERROBANG ‽ 2047;NS # DOUBLE QUESTION MARK ⁇ 2048;NS # QUESTION EXCLAMATION MARK ⁈ 2049;NS # EXCLAMATION QUESTION MARK ⁉ 3005;NS # IDEOGRAPHIC ITERATION MARK 々 [JIS] 301C;NS # WAVE DASH 〜 303B;NS # VERTICAL IDEOGRAPHIC ITERATION MARK 〻 303C;NS # MASU MARK 〼 3041;NS # HIRAGANA LETTER SMALL A ぁ [JIS] 3043;NS # HIRAGANA LETTER SMALL I ぃ [JIS] 3045;NS # HIRAGANA LETTER SMALL U ぅ [JIS] 3047;NS # HIRAGANA LETTER SMALL E ぇ [JIS] 3049;NS # HIRAGANA LETTER SMALL O ぉ [JIS] 3063;NS # HIRAGANA LETTER SMALL TU っ [JIS] 3083;NS # HIRAGANA LETTER SMALL YA ゃ [JIS] 3085;NS # HIRAGANA LETTER SMALL YU ゅ [JIS] 3087;NS # HIRAGANA LETTER SMALL YO ょ [JIS] 308E;NS # HIRAGANA LETTER SMALL WA ゎ [JIS] 3095;NS # HIRAGANA LETTER SMALL KA ゕ 3096;NS # HIRAGANA LETTER SMALL KE ゖ 309B;NS # KATAKANA-HIRAGANA VOICED SOUND MARK ゛ 309C;NS # KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK ゜ 309D;NS # HIRAGANA ITERATION MARK ゝ [JIS] 309E;NS # HIRAGANA VOICED ITERATION MARK ゞ [JIS] 30A0;NS # KATAKANA-HIRAGANA DOUBLE HYPHEN ゠ 30A1;NS # KATAKANA LETTER SMALL A ァ [JIS] 30A3;NS # KATAKANA LETTER SMALL I ィ [JIS] 30A5;NS # KATAKANA LETTER SMALL U ゥ [JIS] 30A7;NS # KATAKANA LETTER SMALL E ェ [JIS] 30A9;NS # KATAKANA LETTER SMALL O ォ [JIS] 30C3;NS # KATAKANA LETTER SMALL TU ッ [JIS] 30E3;NS # KATAKANA LETTER SMALL YA ャ [JIS] 30E5;NS # KATAKANA LETTER SMALL YU ュ [JIS] 30E7;NS # KATAKANA LETTER SMALL YO ョ [JIS] 30EE;NS # KATAKANA LETTER SMALL WA ヮ [JIS] 30F5;NS # KATAKANA LETTER SMALL KA ヵ [JIS] 30F6;NS # KATAKANA LETTER SMALL KE ヶ [JIS] 30FB;NS # KATAKANA MIDDLE DOT ・ 30FC;NS # KATAKANA-HIRAGANA PROLONGED SOUND MARK ー [JIS] 30FD;NS # KATAKANA ITERATION MARK ヽ [JIS] 30FE;NS # KATAKANA VOICED ITERATION MARK ヾ [JIS] 31F0;NS # KATAKANA LETTER SMALL KU ㇰ 31F1;NS # KATAKANA LETTER SMALL SI ㇱ 31F2;NS # KATAKANA LETTER SMALL SU ㇲ 31F3;NS # KATAKANA LETTER SMALL TO ㇳ 31F4;NS # KATAKANA LETTER SMALL NU ㇴ 31F5;NS # KATAKANA LETTER SMALL HA ㇵ 31F6;NS # KATAKANA LETTER SMALL HI ㇶ 31F7;NS # KATAKANA LETTER SMALL HU ㇷ 31F8;NS # KATAKANA LETTER SMALL HE ㇸ 31F9;NS # KATAKANA LETTER SMALL HO ㇹ 31FA;NS # KATAKANA LETTER SMALL MU ㇺ 31FB;NS # KATAKANA LETTER SMALL RA ㇻ 31FC;NS # KATAKANA LETTER SMALL RI ㇼ 31FD;NS # KATAKANA LETTER SMALL RU ㇽ 31FE;NS # KATAKANA LETTER SMALL RE ㇾ 31FF;NS # KATAKANA LETTER SMALL RO ㇿ A015;NS # YI SYLLABLE WU ꀕ FE54;NS # SMALL SEMICOLON ﹔ FE55;NS # SMALL COLON ﹕ FF1A;NS # FULLWIDTH COLON ： FF1B;NS # FULLWIDTH SEMICOLON ； FF65;NS # HALFWIDTH KATAKANA MIDDLE DOT ･ FF67;NS # HALFWIDTH KATAKANA LETTER SMALL A ｧ [JIS] FF68;NS # HALFWIDTH KATAKANA LETTER SMALL I ｨ [JIS] FF69;NS # HALFWIDTH KATAKANA LETTER SMALL U ｩ [JIS] FF6A;NS # HALFWIDTH KATAKANA LETTER SMALL E ｪ [JIS] FF6B;NS # HALFWIDTH KATAKANA LETTER SMALL O ｫ [JIS] FF6C;NS # HALFWIDTH KATAKANA LETTER SMALL YA ｬ [JIS] FF6D;NS # HALFWIDTH KATAKANA LETTER SMALL YU ｭ [JIS] FF6E;NS # HALFWIDTH KATAKANA LETTER SMALL YO ｮ [JIS] FF6F;NS # HALFWIDTH KATAKANA LETTER SMALL TU ｯ [JIS] FF70;NS # HALFWIDTH KATAKANA-HIRAGANA PROLONGED SOUND MARK ｰ [JIS] FF9E;NS # HALFWIDTH KATAKANA VOICED SOUND MARK ﾞ FF9F;NS # HALFWIDTH KATAKANA SEMI-VOICED SOUND MARK ﾟ ------------------------------------------------------------------------ Best regards, -- Shinyu Murakami Antenna House XSL Formatter team http://www.antennahouse.com
Received on Thursday, 18 January 2007 19:27:01 UTC