Re: Surrogates and noncharacters

2015-05-11 Thread Hans Aberg
> On 11 May 2015, at 21:25, Philippe Verdy wrote: > > Yes, but this does not mean that 0xFFF cannot be used as a (32-bit) code > unit in "32-bit strings", even if it is not a valid code point with a valid > scaar value in any legacy or standard version of UTF-32. The reason I did it was t

Re: Surrogates and noncharacters

2015-05-11 Thread Richard Wordingham
On Mon, 11 May 2015 21:25:29 +0200 Philippe Verdy wrote: > Once again, "code units" and "x-bit strings" are not bound to any > Unicode or ISO/IEC 10646 or legacy RFC contraints related to the > current standard UTFs or legacy (obsoleted) UTF's. Who says they are? I'm just saying that the concep

Re: Surrogates and noncharacters

2015-05-11 Thread Philippe Verdy
Yes, but this does not mean that 0xFFF cannot be used as a (32-bit) code unit in "32-bit strings", even if it is not a valid code point with a valid scaar value in any legacy or standard version of UTF-32. The limitation to 0x7FF was certainly just there to avoid sign/unsigned differences

Re: Surrogates and noncharacters

2015-05-11 Thread Hans Aberg
> On 11 May 2015, at 19:44, Doug Ewell wrote: > > Hans Aberg wrote: > However I wonder what would be the effect of D80 in UTF-32: is <0x> a valid "32-bit string" ? >>> >>> The value 0x cannot appear in a UTF-32 string. Therefore it >>> cannot represent a unit of enco

Re: Surrogates and noncharacters

2015-05-11 Thread Doug Ewell
Hans Aberg wrote: >>> However I wonder what would be the effect of D80 in UTF-32: is >>> <0x> a valid "32-bit string" ? >> >> The value 0x cannot appear in a UTF-32 string. Therefore it >> cannot represent a unit of encoded text in a UTF-32 string. > > Even though the values with

RE: Script / font support in Windows 10

2015-05-11 Thread Peter Constable
When the update with Windows 10 info was posted, earlier sections for Windows 2000 / XP / XP SP2 were inadvertently deleted. Those have been restored. From: Unicode [mailto:unicode-boun...@unicode.org] On Behalf Of Peter Constable Sent: Friday, May 8, 2015 7:16 AM To: unicode@unicode.org Subject:

Notes on Mongolian variant forms

2015-05-11 Thread Richard Ishida
fyi, i have been developing a page Notes on Mongolian variant forms http://r12a.github.io/scripts/mongolian/variants the page compares variant glyph shapes proposed in three documents, and shows what shapes fonts actually produce. i have been documenting changes at http://lists.w3.org/Archives