340 lines
10 KiB
HTML
340 lines
10 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Space-like elements</title>
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<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
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<link rel="help" href="https://w3c.github.io/mathml-core/#definition-of-space-like-elements">
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<link rel="help" href="https://w3c.github.io/mathml-core/#operator-fence-separator-or-accent-mo">
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<link rel="help" href="https://w3c.github.io/mathml-core/#layout-of-mrow">
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<meta name="assert" content="Verify definition of space-like elements">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/mathml/support/feature-detection.js"></script>
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<style>
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/* Default spacing of operator 'X' is 0.2777777777777778em so quite different
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from the measured/specified 0em and 1em. */
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math, math * {
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font: 25px/1 Ahem;
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}
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mn {
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color: black;
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}
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mo {
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color: yellow;
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}
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.testedElement, .testedElement * {
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color: blue !important;
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background: blue !important;
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}
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</style>
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<script>
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function spaceBefore(id) {
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var element = document.getElementById(id);
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var mnBeforeParent = element.parentNode.previousElementSibling;
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return element.getBoundingClientRect().left - mnBeforeParent.getBoundingClientRect().right;
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}
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function spaceAfter(id) {
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var element = document.getElementById(id);
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var mnAfterParent = element.parentNode.nextElementSibling;
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return mnAfterParent.getBoundingClientRect().left - element.getBoundingClientRect().right;
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}
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setup({ explicit_done: true });
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window.addEventListener("load", runTests);
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function runTests() {
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var epsilon = 1;
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var emToPx = 25;
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mtext"), emToPx, epsilon);
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assert_approx_equals(spaceAfter("mtext"), emToPx, epsilon);
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}, "mtext is space-like");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mspace"), emToPx, epsilon);
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assert_approx_equals(spaceAfter("mspace"), emToPx, epsilon);
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}, "mspace is space-like");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mrow1"), emToPx, epsilon);
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assert_approx_equals(spaceAfter("mrow1"), emToPx, epsilon);
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}, "space-like mrow");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mrow2"), 0, epsilon);
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assert_approx_equals(spaceAfter("mrow2"), 2 * emToPx, epsilon);
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}, "non-space-like mrow");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mstyle1"), emToPx, epsilon);
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assert_approx_equals(spaceAfter("mstyle1"), emToPx, epsilon);
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}, "space-like mstyle");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mstyle2"), 0, epsilon);
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assert_approx_equals(spaceAfter("mstyle2"), 2 * emToPx, epsilon);
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}, "non-space-like mstyle");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mphantom1"), emToPx, epsilon);
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assert_approx_equals(spaceAfter("mphantom1"), emToPx, epsilon);
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}, "space-like mphantom");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mphantom2"), 0, epsilon);
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assert_approx_equals(spaceAfter("mphantom2"), 2 * emToPx, epsilon);
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}, "non-space-like mphantom");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mpadded1"), emToPx, epsilon);
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assert_approx_equals(spaceAfter("mpadded1"), emToPx, epsilon);
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}, "space-like mpadded");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("mpadded2"), 0, epsilon);
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assert_approx_equals(spaceAfter("mpadded2"), 2 * emToPx, epsilon);
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}, "non-space-like mpadded");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("merror1"), emToPx, epsilon);
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assert_approx_equals(spaceAfter("merror1"), emToPx, epsilon);
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}, "space-like merror");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("merror2"), 0, epsilon);
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assert_approx_equals(spaceAfter("merror2"), 2 * emToPx, epsilon);
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}, "non-space-like merror");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("menclose1"), emToPx, epsilon);
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assert_approx_equals(spaceAfter("menclose1"), emToPx, epsilon);
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}, "space-like menclose");
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test(function() {
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assert_true(MathMLFeatureDetection.has_operator_spacing());
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assert_approx_equals(spaceBefore("menclose2"), 0, epsilon);
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assert_approx_equals(spaceAfter("menclose2"), 2 * emToPx, epsilon);
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}, "non-space-like menclose");
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done();
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}
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</script>
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</head>
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<body>
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<div id="log"></div>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mtext is space-like. -->
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<mtext class="testedElement" id="mtext">X</mtext>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mspace is space-like. -->
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<mspace class="testedElement" id="mspace" width="25px" height="10px"></mspace>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mrow is space-like when it contains only space-like elements. -->
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<mrow id="mrow1" class="testedElement">
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<mtext>X</mtext>
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<mspace width="25px" height="10px"></mspace>
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</mrow>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mrow is not space-like when it contains a non space-like element
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such as "mn". -->
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<mrow id="mrow2" class="testedElement">
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<mn>X</mn>
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<mspace width="25px" height="10px"></mspace>
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</mrow>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mstyle is space-like when it contains only space-like elements. -->
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<mstyle id="mstyle1" class="testedElement">
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<mtext>X</mtext>
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<mspace width="25px" height="10px"></mspace>
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</mstyle>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mstyle is not space-like when it contains a non space-like element
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such as "mn". -->
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<mstyle id="mstyle2" class="testedElement">
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<mn>X</mn>
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<mspace width="25px" height="10px"></mspace>
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</mstyle>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mphantom is space-like when it contains only space-like elements.
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-->
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<mphantom id="mphantom1" class="testedElement">
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<mtext>X</mtext>
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<mspace width="25px" height="10px"></mspace>
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</mphantom>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mphantom is not space-like when it contains a non space-like
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element such as "mn". -->
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<mphantom id="mphantom2" class="testedElement">
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<mn>X</mn>
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<mspace width="25px" height="10px"></mspace>
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</mphantom>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mpadded is space-like when it contains only space-like elements. -->
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<mpadded id="mpadded1" class="testedElement">
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<mtext>X</mtext>
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<mspace width="25px" height="10px"></mspace>
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</mpadded>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- mpadded is not space-like when it contains a non space-like element
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such as "mn". -->
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<mpadded id="mpadded2" class="testedElement">
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<mn>X</mn>
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<mspace width="25px" height="10px"></mspace>
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</mpadded>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- merror is space-like when it contains only space-like elements. -->
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<merror id="merror1" class="testedElement">
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<mtext>X</mtext>
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<mspace width="25px" height="10px"></mspace>
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</merror>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- merror is not space-like when it contains a non space-like element
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such as "mn". -->
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<merror id="merror2" class="testedElement">
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<mn>X</mn>
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<mspace width="25px" height="10px"></mspace>
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</merror>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- menclose is space-like when it contains only space-like
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elements. -->
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<menclose id="menclose1" class="testedElement">
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<mtext>X</mtext>
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<mspace width="25px" height="10px"></mspace>
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</menclose>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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<p>
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<math>
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<mn>X</mn>
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<mrow>
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<!-- menclose is not space-like when it contains a non space-like
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element such as "mn". -->
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<menclose id="menclose2" class="testedElement">
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<mn>X</mn>
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<mspace width="25px" height="10px"></mspace>
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</menclose>
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<mo lspace="1em" rspace="0em">X</mo>
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</mrow>
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<mn>X</mn>
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</math>
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</p>
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</body>
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</html>
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