Re: Questions on ZWNBS - for line initial holam plus alef

2003-08-07 Thread Doug Ewell
Kenneth Whistler kenw at sybase dot com wrote: But I challenge you to find anything in the standard that *prohibits* such sequences from occurring. I've learned that this question of illegal or invalid character sequences is one of the main distinguishing factors between those who truly

Re: Conflicting principles

2003-08-07 Thread Michael Everson
At 15:18 -0700 2003-08-06, Kenneth Whistler wrote: As someone or other said, I believe that hitherto -- *hitherto,* mark you -- [we have] entirely overlooked the existence of, well, scripts that might cause a conflict between these esteemed principles. The reason why the UTC should tackle the

Re: Conflicting principles

2003-08-07 Thread John Cowan
Kenneth Whistler scripsit: Is a right-to-left script encoded in visual order in the backing store or in phonetic (= logical) order? I've always thought this term visual order was productive of nothing but confusion. I realize that there's precedent in the 8859-x RFCs for its use, but

Re: Display of Isolated Nonspacing Marks (was Re: Questions on ZWNBS...)

2003-08-07 Thread John Cowan
Mark Davis scripsit: Where did you get the notion that space is not a base character? And base characters include those that are not control or format characters. Space is neither one. Unfortunately, p. 88 of TUS3.0 (section 4.5, paragraph 3) says Zs, Zl, and Zp [characters] are considered

Re: Conflicting principles

2003-08-07 Thread Rick McGowan
John C asked... I would like to ask the old farts^W^Wrespected elders of the UTC which principle they consider more important, abstractly speaking: the principle that combining marks always follow their base characters (a typographical principle), or that text is stored, with a few minor

RE: Display of Isolated Nonspacing Marks (was Re: Questions on ZWNBS...)

2003-08-07 Thread Kent Karlsson
I was so glad that you got things so nearly right for once, and then you go and spoil it with: Another similar case would be the use of a isolated nukta (which normally modifies a following base character): the sequence nukta, SPACE Like all other combining characters, NUKTA follows the

RE: Questions on ZWNBS - for line initial holam plus alef

2003-08-07 Thread Kent Karlsson
Canonical reordering is scoped to stop at combining class = 0. (I know it is. But I confess I'm not sure why.) Because God, er, um... Mark Davis created it that way. ;-) Eeh, not really the answer I expected. This particular behaviour makes (marginal!) sense for

Re: Conflicting principles

2003-08-07 Thread Peter Kirk
On 06/08/2003 16:12, John Jenkins wrote: On Wednesday, August 6, 2003, at 3:53 PM, Peter Kirk wrote: This answer presupposes that there is a well-defined concept of which base character a combining mark belongs to. That is not always true. The particukar combining mark which precipitated the

Re: Questions on ZWNBS - for line initial holam plus alef

2003-08-07 Thread Philippe Verdy
On Thursday, August 07, 2003 2:40 AM, Doug Ewell [EMAIL PROTECTED] wrote: Kenneth Whistler kenw at sybase dot com wrote: But I challenge you to find anything in the standard that *prohibits* such sequences from occurring. I've learned that this question of illegal or invalid character

Re: Colourful scripts

2003-08-07 Thread Peter Kirk
On 07/08/2003 10:38, John Cowan wrote: Miikka-Markus Alhonen scripsit: Anyone interested in preparing an encoding proposal? This is awfully marginal, it seems to me, not so much because of the colors (which are letter features, like crossbars, bowls, etc. in other scripts), but because