On 3/20/2021 10:52 PM, Hugo Landau wrote:
Thanks for ConTeXt, it is an amazing system.
The following test case demonstrates the bug.
\usemodule[mathml]
\starttext
\xmlprocessdata{}{
<?xml version="1.0" encoding="utf-8"?>
<foo xmlns="http://www.example.com/ns/foo";
xmlns:m="http://www.w3.org/1998/Math/MathML";>
<m:math version="2.0">
<m:apply><m:union/><m:ci>a</m:ci><m:ci>b</m:ci></m:apply>
</m:math>
<m:math version="2.0">
<m:apply><m:selector/><m:ci>a</m:ci><m:ci>b</m:ci></m:apply>
</m:math>
</foo>
}{}
\stoptext
No output is produced. This has been verified with live.contextgarden.net.
In order for output to be produced, <m:union/> must be changed to <union> and
<m:selector/> must be changed to <selector/>, but these are in the wrong
namespace in this context. In other words, this bug applies to the keyword
element in an apply element.
in x-math.mkiv search for
\startxmlsetups mml:apply
and replace this bit:
\edef\mmlapplyaction{\xmlfilter{#1}{/*/tag()}}
\doifelsesetups {mml:apply:mml:\mmlapplyaction} {
\xmlsetup{#1}{mml:apply:mml:\mmlapplyaction}
} {
\xmlsetup{#1}{mml:\mmlapplyaction}
}
(btw, isn't content mathml more fun than presentation mathml?)
Hans
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