On 4/2/2014 12:36 AM, Richard Wordingham wrote:
On Tue, 1 Apr 2014 23:41:48 +0000
"Whistler, Ken" <[email protected]> wrote:
Is it legitimate to truncate the context to a single line? The BiDi
algorithm is attempting to interpret unlabelled text as embedded
text
(it's not an arbitrary dance), and in just one line there is no
indicator of whether the hyphen is part of the LTR text embedded in
RTL text.
For this discussion, I think yes. See Section 3.4 of UAX #9:
The following rules describe the logical process of finding the
correct display order. As opposed to resolution phases, these rules
act on a per-line basis and are applied after any line wrapping is
applied to the paragraph.
But it is a *resolution* rule that converts the true hyphen or minus
sign to Bidi Class L; these apply before the scope reduces from
paragraph to line.
When breaking a line at a soft hyphen, one is essentially modifying the
text around the line break for display, because the SHY is not specific
as to what should happen (as was the case with German old orthography,
the changes go beyond simple substitution of a hyphen).
When you change the text, you have to fix up the resolution.
A./
Richard.
_______________________________________________
Unicode mailing list
[email protected]
http://unicode.org/mailman/listinfo/unicode
_______________________________________________
Unicode mailing list
[email protected]
http://unicode.org/mailman/listinfo/unicode
