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& not working as expected in custom macros #2390

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andrew-murdza opened this issue Jun 7, 2024 · 0 comments
Open

& not working as expected in custom macros #2390

andrew-murdza opened this issue Jun 7, 2024 · 0 comments

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@andrew-murdza
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andrew-murdza commented Jun 7, 2024 •
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Html code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Change FontShape of MathField</title>
  <script defer src="https://unpkg.com/mathlive"></script>
</head>
<body>
<h1>MathField FontShape Example</h1>
<math-field id='mf'>\begin{aligned}\bu11\\\bu2\end{aligned}</math-field>
<script>
  customElements.whenDefined("math-field").then(() => {
    document.body.classList.add("ready");
    mf=document.getElementById('mf');
    mf.macros={...mf.macros,bu:'&\\bullet~~'}
  });
</script>
</body>
</html>

Description

When & is used inside of a macro, it is treated as the letter & and not the latex character &

Steps to Reproduce

Run the attached html code

Actual Behavior

The bullets are not lined up and there is a letter &

Expected Behavior

The bullets are lined up (because there are &'s an an aligned environment) and there is no "&" letter present in the output.

Environment

Windows Chrome
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@andrew-murdza