On Thu, 10 Jan 2019, Hans Hagen wrote:

On 1/10/2019 10:26 PM, Aditya Mahajan wrote:
Hi,

I have an XML file (which is generated via a program that I have no control over), which contains elements as follows:

          <p>
             <equation text="$$y_1(t) = 1, t \geq 0$$">
               <img alt="$$y_1(t) = 1, t \geq 0$$" class="equation" height="15px" src="Lab01_eq10401623798909303081.png" width="95px"/>
             </equation>
          </p>

I want to typeset the `text` attribute of equation (and ignore the <img> tag). So, I tried:

\startxmlsetups matlab
   % Bunch of missing definitions
   \xmlsetsetup{#1}{equation}{matlab:*}
\stopxmlsetups

\startxmlsetups matlab:equation
   \xmlatt{#1}{text}
\stopxmlsetups

This literally typesets `$$y_1(t) = 1, t \geq 0$$`. How can I flush the attribute using ctxcatcodes? (There is \xmlflushcontent, but that is for content and not attributes).
Time for an "aha, I knew it" moment ...

:-) Thanks.

Follow-up question: How do I escape entities inside the attributes. One snippet is:

         <p>
<equation text="$$x_2(t) = \begin{cases} t, &amp; 0 \leq t &lt; 5 \\ -t+10, &amp; t \geq&#xA;5\end{cases}$$">$$x_2(t) = \begin{cases} t, &amp; 0 \leq t &lt; 5 \\ -t+10, &amp; t \geq
5\end{cases}$$</equation>
         </p>

This contains `&#xA;` which I want to convert to either newline or blank.

(I have to use the text attribute. The content has the right information in this particular instance due to a bug in the conversion)

Aditya
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