Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-19 Thread Richard Wordingham
On Tue, 19 Mar 2013 01:19:00 +0100 Philippe Verdy wrote: > It is the UCA that defines the concept of ignorable characters. And > the DUCET ("Default" UCET) that makes characters ignorable by default, > but this can still be tailored in specific collations). > > Where did you see another confusiv

Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-18 Thread Philippe Verdy
It is the UCA that defines the concept of ignorable characters. And the DUCET ("Default" UCET) that makes characters ignorable by default, but this can still be tailored in specific collations). Where did you see another confusive expression in TUS defining "default ignorable" differently as being

Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-18 Thread Richard Wordingham
On Mon, 18 Mar 2013 08:32:03 +0100 Philippe Verdy wrote: > The "Default ignorable" property has nothing to do with rendering or > being zero-width, it's just a matter of collation (comparing strings > for similarity, for plain-text searches, or sorting them), it does not > necesarily mean that th

Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-18 Thread Philippe Verdy
2013/3/18 Kent Karlsson : > It goes also for the Hangul filler characters, because they are there > for syntactic reasons, and should not render whether you can support them > properly or not. There's an exception in editors (in edit mode) where these fillers may be displayed distinctly (but this

Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-18 Thread Kent Karlsson
First of all, are the fonts you are referring to able to at all handle conjoining Jamo? If not, the question is moot. Fonts that do not support conjoining Jamo, often show them as if they were non-conjoining Jamo. But that is a bad idea, since the non-conjoining Jamo have separate code points (for

Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-18 Thread Konstantin Ritt
>> i.e. , or , or -- should the >> fillers be rendered as non-advancing? > > The renderer should create a single syllabic cluster by grouping the > vowel filler with the previous consonnant, and grouping the leading > consonnant filler with the following vowel. So there will be two > clusters. So

Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-18 Thread Philippe Verdy
2013/3/18 Konstantin Ritt : > Hi Philippe, > > thanks for your reply. > I was confused by http://www.unicode.org/faq/unsup_char.html , which states >> All default-ignorable characters should be rendered as completely invisible >> (and non advancing, i.e. "zero width"), if not explicitly supported

Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-18 Thread Konstantin Ritt
Hi Philippe, thanks for your reply. I was confused by http://www.unicode.org/faq/unsup_char.html , which states > All default-ignorable characters should be rendered as completely invisible > (and non advancing, i.e. "zero width"), if not explicitly supported in > rendering. Do I understand corr

Re: Shaping Hangul text with U+115F and/or U+1160

2013-03-18 Thread Philippe Verdy
The "Default ignorable" property has nothing to do with rendering or being zero-width, it's just a matter of collation (comparing strings for similarity, for plain-text searches, or sorting them), it does not necesarily mean that the character is zero-width (that's a rendering property). Character

Shaping Hangul text with U+115F and/or U+1160

2013-03-17 Thread Konstantin Ritt
Forgot to add the topis the first time, re-posting. Sorry for inconvenience. Konstantin 2013/3/18 Konstantin Ritt : > Hi list, > > The user reports Korean text rendering issue with any modern Hangul > font when U+115F and U+1160 are handled like default_ignorable code > points. > [quote]With inp