Re: [NTG-context] Math literal colon

24 Jul 2015


      On 7/24/2015 4:19 PM, Hans Aberg wrote:
...
...
On 24 Jul 2015, at 15:48, Hans Hagen  wrote:
...
...
In the examples I mentioned (below), running ‘context’ on the first produces large colons, whereas ‘luatex’ on the second does not. The latter looks right to me.
define 'luatex' ... it's all about choices that macro packages make (or made in the past)
I use Tex Live 2015 that came last month.
$ luatex --version
This is LuaTeX, Version beta-0.80.0 (TeX Live 2015) (rev 5238)
...
...
There is a similar issue with integral symbols, where somehow ConTeXt add additional spacing after it.
   http://www.ntg.nl/pipermail/ntg-context/2015/082541.html
— context —
\setupbodyfont[xits,10pt]
\setupformulas[location=left]
\begingroup\lccode`\~=`\:\lowercase{\endgroup
      \let~}\colon
    \mathcode`\:="8000 %
\starttext
The function $f: A → B$, $g\colon A → B$.
we could add a mathsymbol entry but I leave that to Aditya to decide
{
  adobename="colon",
  category="po",
  cjkwd="na",
  description="COLON",
  direction="cs",
  linebreak="is",
  mathclass="relation",
--mathsymbol=0x2236,
  unicodeslot=0x3A,
},
Should it be 'mathclass=“relation”’? Mathematically, relations have extra space at both sides, whereas in the function $f: A → B$, there should not be much space before the “:”.
that's where the domain would kick in .. it can control that kind of 
spacing issues

Hans

-----------------------------------------------------------------
                                           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
-----------------------------------------------------------------