From: Asmus Freytag (asmusf@ix.netcom.com)
Date: Tue Feb 26 2008 - 13:23:55 CST
I don't know what you two are fighting about here.
The problem reported was:
> In Japanese writing, [$B$3$?$($O!"(Banswer] should be breakable into
> > lines like:
> >
> > $B$3$?$($O!"(B
> > answer
> >
> > Because [$B!"(B](U+3001) and [$B!#(B](U+3002) in Japanese are used just
> > like comma and period in English. We can break a line after
> > comma or period in English.
What looks like a space in front of the "a" of answer, is just empty
space in the glyph of the "$B!"(B" character (ideographic comma), which can
be seen when showing it between bars like this: |$B!"(B|
Therefore, the rule in 5.0 CL X (AL | NU) has the effect of preventing a
break which is a significant problem for Asian text that was overlooked
when the rule change for 5.0.0 was accepted.
I am told that this will be fixed in 5.1.
A./
PS: whether or not "before, after" allows a break after the comma and
the following space (2 characters) is beside the point for Japanese
text, which customarily does NOT have spaces.
On 2/26/2008 1:06 AM, Satoshi Nakagawa wrote:
> On 2008/02/25, at 6:22, Philippe Verdy wrote:
>>>> LB30
>>>> Do not break between letters, numbers, or ordinary symbols and opening
>>>> or closing punctuation.
>>>>
>>>> CL $B!_(B (AL | NU)
>>
>> In fact the rules translate as CL % AL, i.e. it's an indirect break:
>> CL $B!_(B AL
>> but
>> CL $B!_(B SP* $B!`(B AL
>
> I would not agree.
>
> See 7.3,
>
>> % denotes an indirect break opportunity: B % A is equivalent to B $B!_(B A
>> and B SP+ $B!`(B A;
>> in other words, do not break before A, unless one or more spaces
>> follow B.
>
> We can only say CL % AL is equivalent to CL $B!_(B AL and CL $B!_(B SP* $B!`(B AL
> here. So CL $B!_(B AL is not equivalent to CL % AL. Because the left hand
> side doesn't have "and CL $B!_(B SP* $B!`(B AL" part.
>
> I would say in other words, if A $B!_(B B allowed a break, the A $B!_(B B rule
> would be no information.
>
> I think CL $B!_(B AL doesn't allow a break between CL and AL, doesn't it?
>
> --
> Satoshi Nakagawa
>
>
>
>
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