On 7/27/2019 8:23 AM, Duncan Hothersall wrote:
Hi all.

In processing MathML if I want a formula to be numbered I add a label="X" attribute to the <formula> tag as per:

\usemodule[mathml]
\starttext
\xmlprocessdata{}{<formula label='X'>
  <math xmlns='http://www.w3.org/1998/Math/MathML'>
   <mi>p</mi><mo>=</mo><mi>c</mi><mo>-</mo><mi>t</mi>
  </math>
</formula>}{}
\stoptext

This will label the formula as (1). I know I can adjust how the automatic numbering is generated using \setupformulae, but how can I override the label used for a specific formula, say to set it to (36A)?
**

Basically I have a setup where formulae are mostly numbered sequentially but occasionally individual formulae need to have an out-of-sequence or differently formatted number.

Thanks as ever for any help.

\usemodule[mathml]

\startxmlsetups mml:formula
    \edef\mmlformulalabel{\xmlatt{#1}{label}}
    \edef\mmlformulatitle{\xmlatt{#1}{title}}
    \doifsomethingelse {\mmlformulalabel\mmlformulatitle} {

\startplaceformula[reference=\mmlformulalabel,title=\mmlformulatitle]
            \startformula
                \xmlfirst{#1}{/mml:math}
            \stopformula
        \stopplaceformula
    } {
        \startformula
            \xmlfirst{#1}{/mml:math}
        \stopformula
    }
\stopxmlsetups


\starttext
\xmlprocessdata {} {
    <document>
    <formula label='X'>
        <math xmlns='http://www.w3.org/1998/Math/MathML'>
            <mi>p</mi><mo>=</mo><mi>c</mi><mo>-</mo><mi>t</mi>
        </math>
    </formula>
    <formula label='Y' title="whatever">
        <math xmlns='http://www.w3.org/1998/Math/MathML'>
            <mi>p</mi><mo>=</mo><mi>c</mi><mo>-</mo><mi>t</mi>
        </math>
    </formula>
    <formula label='Z'>
        <math xmlns='http://www.w3.org/1998/Math/MathML'>
            <mi>p</mi><mo>=</mo><mi>c</mi><mo>-</mo><mi>t</mi>
        </math>
    </formula>
    </document>
}{}
\stoptext

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