Re: [NTG-context] XML/MathML namespace handling bug

20 Mar 2021

      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">

     ab

     ab

   </foo>
   }{}
   \stoptext
No output is produced. This has been verified with live.contextgarden.net.
In order for output to be produced,  must be changed to <union> and
 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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