Re: Characters that should be displayed?

2014-06-30 Thread Koji Ishii
>> Thanks for the reply. It’s very likely that the page contains images, >> borders, background, etc., so I can recognize all the text are missing. But >> neither of text missing nor text garbled suggests me how to fix it. I’d try >> another browser, then give up viewing the page. > > If it did

Re: Characters that should be displayed?

2014-06-30 Thread Christopher Fynn
On 30/06/2014, David Starner wrote: > On Sun, Jun 29, 2014 at 2:02 PM, Jukka K. Korpela > wrote: >> They might be seen as “not displayable by normal rendering”, so yes. On >> the >> practical side, although Private Use characters should not be used in >> public >> information interchange, they a

Re: Characters that should be displayed?

2014-06-30 Thread David Starner
On Mon, Jun 30, 2014 at 9:12 PM, Koji Ishii wrote: > Thanks for the reply. It’s very likely that the page contains images, > borders, background, etc., so I can recognize all the text are missing. But > neither of text missing nor text garbled suggests me how to fix it. I’d try > another browse

Re: Characters that should be displayed?

2014-06-30 Thread Koji Ishii
On Jul 1, 2014, at 9:14 AM, David Starner wrote: On Mon, Jun 30, 2014 at 11:35 AM, Koji Ishii wrote: >> I understand some here wants to display them to help users to identify >> broken characters, some consider it doesn’t help users at all. I tend to >> agree with the later, but either way, it’s

Re: Characters that should be displayed?

2014-06-30 Thread David Starner
On Mon, Jun 30, 2014 at 11:35 AM, Koji Ishii wrote: > I understand some here wants to display them to help users to identify > broken characters, some consider it doesn’t help users at all. I tend to > agree with the later, but either way, it’s about helping users to fix their > documents. If you

Problem with Mandaic shaping, IT and IN switched

2014-06-30 Thread Benjamin Riefenstahl
Hi everybody, I am currently in the process of designing a simple OpenType font for Mandaic. As some of you are probably aware, shaping in OpenType as it is recommended by the OpenType standard requires that the application (i.e. the text rendering engine) knows the joining behaviour of the chara

Re: Characters that should be displayed?

2014-06-30 Thread Koji Ishii
Thank you all for this a lot of great feedback. I learned a lot. I, however, still don’t get one thing. In the spec text: Surrogate code points, private-use characters, and control characters are not given the Default_Ignorable_Code_Point property. To avoid security problems, such characters or

Re: Characters that should be displayed?

2014-06-30 Thread Philippe Verdy
I generally agree with your comment. For your question U+FFFD is not special in CSS, it's just a standard character that will be mapped to some symbol (from any font, or synthetized from an internal font (or collection of glyphs) of the renderer according to other styles (there's no warranty that

Re: Characters that should be displayed?

2014-06-30 Thread Konstantin Ritt
2014-06-29 22:24 GMT+03:00 Asmus Freytag : > but things get harder the more I think: >> >> 3. When the above text says “surrogate code points”, does that mean >> everything outside BMP? It reads so to me, but I’m surprised that >> characters in BMP and outside BMP have such differences, so I’m dou

Re: Characters that should be displayed?

2014-06-30 Thread James Clark
A couple of your questions are addressed by: http://www.unicode.org/faq/unsup_char.html In particular: Q: Which characters should be displayed with a missing glyph, if not supported? A: All characters other than whitespace and default-ignorable characters. James On Mon, Jun 30, 2014 at 1:44 AM