Re: Question about spacing of some math symbols

[Hans Hagen <pragma@wxs.nl>]

On 23-2-2012 21:16, Aditya Mahajan wrote:
> On Thu, 23 Feb 2012, Khaled Hosny wrote:
>
>> Hi all,
>>
>> While testing some XITS symbols, I was wondering about the spacing of
>> the following symbols:
>>
>> \setupbodyfont[xits]
>>
>> \starttext
>> $$a < b$$ # reference
>> $$a ⨼ b$$
>> $$a ⨽ b$$
>> $$a ⪝ b$$
>> $$a ⪞ b$$
>> $$a ⪬ b$$
>> $$a ⪭ b$$
>> \stoptext
>>
>> Not sure about the first two, but I think the rest should be mathrel
>
> I agree.
>
>> (additionally, does anyone knows a definite Unicode reference for such
>> proprieties?)
>
> I usually use the ams symbol list (as implemented by the unicode-math
> package) as reference.

When (years ago) I wrote the math ml parsers I used those 
xits/ams/whatever lists but they had inconsistencies (no surprise as 
there are so many smbols) .. so whatever change we do, I'd rather not 
copy blindly but consider carefully; some symbols have multiple usage 
and we can support that. Now, as long as we use names that's no big 
deal, but when characters are used directly there can be conflicting 
interests with respect to defaults. For that I'd like to introduce the 
option to set a 'domain' or whatever it's called which will adapt the 
spacing category automatically

btw ... did you ever look at:

http://www.openmath.org/cdnames.html


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________