Re: [NTG-context] Math literal colon

On 24 Jul 2015, at 11:43, Hans Hagen wrote:

On 7/20/2015 6:22 PM, Hans Aberg wrote:

...

...

On 20 Jul 2015, at 17:43, Manuel Blanco wrote:

Well, you can make the colon active in math mode and then let it output \colon.

This is a TeX way, I don't know if there's a ConTeXt way for this:

\begingroup\lccode`\~=`\:\lowercase{\endgroup \let~}\colon \mathcode`\:="8000 %

For some reason, the colon in ConTeXt is larger relative LuaTeX.

you probably mean latex (macro package) here as luatex (engine) itself doesn't do anything

keep in mind that context implements much of math in a complete different way, so solutions for problems or wishes are done differently too; in this case we try to use unicode and some lua magic instead of character juggling at the tex end

we also need to keep in mind that characters have to behave well in tagged pdf and exports and so

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. 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 $f: A → B$, $g\colon A → B$. \stoptext — — luatex — \begingroup\lccode`\~=`\:\lowercase{\endgroup \let~}\colon \mathcode`\:="8000 % The function $f: A \to B$. \end —