File: inferred-mrow-stretchy.html

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Stretchy in inferred mrows</title>
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#horizontally-group-sub-expressions-mrow">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#radicals-msqrt-mroot">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#style-change-mstyle">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#error-message-merror">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#making-sub-expressions-invisible-mphantom">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#the-top-level-math-element">
<link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.menclose">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#adjust-space-around-content-mpadded">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#operator-fence-separator-or-accent-mo">
<meta name="assert" content="Operators can stretch inside mrow-like elements.">
<script src="/mathml/support/feature-detection.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  mo {
    font-size: 10px;
    font-family: axisheight5000-verticalarrow14000;
  }
  @font-face {
    font-family: axisheight5000-verticalarrow14000;
    src: url("/fonts/math/axisheight5000-verticalarrow14000.woff");
  }
</style>
<script type="text/javascript">
  setup({ explicit_done: true });
  window.addEventListener("load", () => { document.fonts.ready.then(runTests); });
  function runTests()
  {
      ["Mrow", "Sqrt", "Style", "Error", "Phantom", "Math", "Menclose", "Mpadded", "Unknown"].forEach((tag) => {
          var mo = document.getElementById("mo" + tag);
          test(function() {
              assert_true(MathMLFeatureDetection.has_mspace());
              assert_greater_than_equal(mo.getBoundingClientRect().height, 100);
          }, "operator stretching inside " + tag);
      });
      done();
  }
</script>
</head>
<body>
  <div id="log"></div>
  <p>
    <math><mrow><mo id="moMrow">&#x21A8;</mo><mspace width="1px" height="100px" style="background: blue"></mspace></mrow></math>
    <math><msqrt><mo id="moSqrt">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></msqrt></math>
    <math><mstyle><mo id="moStyle">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></mstyle></math>
    <math><merror><mo id="moError">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></merror></math>
    <math><mphantom><mo style="visibilty: visible;" id="moPhantom">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></mphantom></math>
    <math><mo id="moMath">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></math>
    <!-- menclose is treated as <unknown> in MathML Core -->
    <math><menclose notation="box"><mo id="moMenclose">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></menclose></math>
    <math><mpadded lspace="10px"><mo id="moMpadded">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></mpadded></math>
    <math><unknown><mo id="moUnknown">&#x21A8;</mo><mspace width="1px" height="100px" style="background: magenta"></mspace></unknown></math>
  </p>
</body>
</html>