Re: how can I write an arabic square root- I think I've understood a little.-thanks and why

2002-04-05 Thread Eric Muller
Munzir Taha wrote: Third, I am still searching for the right font but can't find it yet. Can you help me? I was looking at some old type book, specifically at the Linotype Pi characters catalog, and they apparently had an Arabic Maths Pi family with two fonts. Those fonts have mirorred

Re: how can I write an arabic square root- I think I've understood a little.

2002-04-04 Thread Markus Scherer
[EMAIL PROTECTED] wrote: This raises a question in my mind: how is an app to know whether the layout engine+font are smart enough? ... In other words, it seems to me that it must be agreed that an app should assume it is handled by Uniscribe/OT, or should assume that it is not. Yes, I

Re: how can I write an arabic square root- I think I've understood a little.

2002-04-01 Thread Markus Scherer
Eric Muller wrote: I believe that the current mirrored and mirrored glyph properties are useful only when no help can be obtained from the font; otherwise, the resolved directionality should be provided to the font, which should then select the appropriate shape for each and every

Re: how can I write an arabic square root- I think I've understood a little.-thanks and why

2002-03-29 Thread Munzir Taha
First, a word of thank to the generous help I've found on this mailing list. Thanks Marco for the nice demonstration. Second, why then Unicode choose some characters like parantheses to have two glyphs whereas others like sqrt haven't. What's the point? Third, I am still searching for the right

Re: how can I write an arabic square root- I think I've understood a little.-thanks and why

2002-03-29 Thread Eric Muller
Munzir Taha wrote: Second, why then Unicode choose some characters like parantheses to have two glyphs whereas others like sqrt haven't. What's the point? I think of the mirrored stuff as: We (Unicode) do not want to encode separate characters for ltr and rtl contexts (just like we do not

RE: how can I write an arabic square root- I think I've understood a little.-thanks and why

2002-03-29 Thread Marco Cimarosti
Eric Muller wrote: Munzir Taha wrote: Second, why then Unicode choose some characters like parantheses to have two glyphs whereas others like sqrt haven't. What's the point? There is a misunderstanding here: the square root character *does* have the mirrored property, just like

Re: how can I write an arabic square root- I think I've understood a little.-thanks and why

2002-03-29 Thread Mark Davis
write an arabic square root- I think I've understood a little.-thanks and why Eric Muller wrote: Munzir Taha wrote: Second, why then Unicode choose some characters like parantheses to have two glyphs whereas others like sqrt haven't. What's the point? There is a misunderstanding here

Re: how can I write an arabic square root- I think I've understood a little.

2002-03-28 Thread John Hudson
At 23:44 3/27/2002, Asmus Freytag wrote: That's what's supposed to happen, when system and font designers correctly implement the mirrored glyphs. It might be a good idea if someone explained to us font designers exactly what is required of us. Some mirrored forms such as the parentheses, are

RE: how can I write an arabic square root- I think I've understood a little.

2002-03-28 Thread Marco Cimarosti
Munzir Taha wrote: No: common characters, such as parentheses or double quotes are supported even on my system. So, the mechanism is already in place on many systems. Please, execuse me but I need more explanation in this issue. When I need to enter parentheses or double quotes, I

Re: how can I write an arabic square root- I think I've understood a little.

2002-03-28 Thread Eric Muller
John Hudson wrote: It might be a good idea if someone explained to us font designers exactly what is required of us. Some mirrored forms such as the parentheses, are being handled in character processing, not glyph processing, and I have yet to see any set of requirements (e.g. in

RE: how can I write an arabic square root- I think I've understood a little.

2002-03-28 Thread Marco Cimarosti
Eric Muller wrote: [...] what makes the selection of a shape appropriate for rtl or ltr context any different? in particular, why should we rule out the use of an alternate shape for A based on the directionality? This is particularly relevant for alphabets (such as Old Italic or Greek)

Re: how can I write an arabic square root- I think I've understood a little.

2002-03-27 Thread Munzir Taha
No: common characters, such as parentheses or double quotes are supported even on my system. So, the mechanism is already in place on many systems. Please, execuse me but I need more explanation in this issue. When I need to enter parentheses or double quotes, I find two different symbols. Do