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<!doctype html>
<html>
<head>
<title>MathML script elements: removing children</title>
<!-- This test verifies removal of children from an <mroot>/<msqrt> element using DOM operations. It should not crash and should render the same as the equivalent static page. -->
<style type="text/css">
div { border: 1px solid; margin: .5em; }
</style>
<script type="text/javascript">
var mathmlNS = "http://www.w3.org/1998/Math/MathML";
function newMn(n)
{
var t = document.createTextNode(n.toString());
var mn = document.createElementNS(mathmlNS, "mn");
mn.appendChild(t);
return mn;
}
function test1()
{
var msqrt = document.getElementById("test1").getElementsByTagNameNS(mathmlNS, "msqrt");
var mroot = document.getElementById("test1").getElementsByTagNameNS(mathmlNS, "mroot");
var i;
for (i = 0; i < msqrt.length; i++)
msqrt[i].removeChild(msqrt[i].firstChild);
for (i = 0; i < mroot.length; i++)
mroot[i].removeChild(mroot[i].firstChild);
}
function test2()
{
var msqrt = document.getElementById("test2").getElementsByTagNameNS(mathmlNS, "msqrt");
var mroot = document.getElementById("test2").getElementsByTagNameNS(mathmlNS, "mroot");
var i;
for (i = 0; i < msqrt.length; i++)
msqrt[i].removeChild(msqrt[i].lastChild);
for (i = 0; i < mroot.length; i++)
mroot[i].removeChild(mroot[i].lastChild);
}
function test3()
{
var msqrt = document.getElementById("test3").getElementsByTagNameNS(mathmlNS, "msqrt");
var mroot = document.getElementById("test3").getElementsByTagNameNS(mathmlNS, "mroot");
var i;
for (i = 0; i < msqrt.length; i++)
msqrt[i].removeChild(msqrt[i].firstChild.nextSibling);
for (i = 0; i < mroot.length; i++)
mroot[i].removeChild(mroot[i].firstChild.nextSibling);
}
function test4()
{
var msqrt = document.getElementById("test4").getElementsByTagNameNS(mathmlNS, "msqrt");
var mroot = document.getElementById("test4").getElementsByTagNameNS(mathmlNS, "mroot");
var i;
for (i = 0; i < msqrt.length; i++)
msqrt[i].removeChild(msqrt[i].lastChild.previousSibling);
for (i = 0; i < mroot.length; i++)
mroot[i].removeChild(mroot[i].lastChild.previousSibling);
}
function run()
{
test1();
test2();
test3();
test4();
}
</script>
</head>
<body onload="run()">
<!-- Test 1: remove an element at the first position in an <mroot>/<msqrt> element with various number of children. -->
<div id="test1">Test 1:
<math><msqrt><mi>X</mi></msqrt></math>
<math><msqrt><mi>X</mi><mn>1</mn></msqrt></math>
<math><msqrt><mi>X</mi><mn>1</mn><mn>2</mn></msqrt></math>
<math><msqrt><mi>X</mi><mn>1</mn><mn>2</mn><mn>3</mn></msqrt></math>
<math><mroot><mi>X</mi></mroot></math>
<math><mroot><mi>X</mi><mn>1</mn></mroot></math>
<math><mroot><mi>X</mi><mn>1</mn><mn>2</mn></mroot></math>
<math><mroot><mi>X</mi><mn>1</mn><mn>2</mn><mn>3</mn></mroot></math>
</div>
<!-- Test 2: remove an <mn> element at the last position in an <mroot>/<msqrt> element with various number of children. -->
<div id="test2">Test 2:
<math><msqrt><mn>1</mn><mi>X</mi></msqrt></math>
<math><msqrt><mn>1</mn><mn>2</mn><mi>X</mi></msqrt></math>
<math><msqrt><mn>1</mn><mn>2</mn><mn>3</mn><mi>X</mi></msqrt></math>
<math><mroot><mn>1</mn><mi>X</mi></mroot></math>
<math><mroot><mn>1</mn><mn>2</mn><mi>X</mi></mroot></math>
<math><mroot><mn>1</mn><mn>2</mn><mn>3</mn><mi>X</mi></mroot></math>
</div>
<!-- Test 3: remove an element at the second position in an <mroot>/<msqrt> element with various number of children. -->
<div id="test3">Test 3:
<math><msqrt><mn>1</mn><mi>X</mi></msqrt></math>
<math><msqrt><mn>1</mn><mi>X</mi><mn>2</mn></msqrt></math>
<math><msqrt><mn>1</mn><mi>X</mi><mn>2</mn><mn>3</mn></msqrt></math>
<math><msqrt><mn>1</mn><mi>X</mi><mn>2</mn><mn>3</mn><mn>4</mn></msqrt></math>
<math><mroot><mn>1</mn><mi>X</mi></mroot></math>
<math><mroot><mn>1</mn><mi>X</mi><mn>2</mn></mroot></math>
<math><mroot><mn>1</mn><mi>X</mi><mn>2</mn><mn>3</mn></mroot></math>
<math><mroot><mn>1</mn><mi>X</mi><mn>2</mn><mn>3</mn><mn>4</mn></mroot></math>
</div>
<!-- Test 4: remove an element at the penultimate position in an <mroot>/<msqrt> element with various number of children. -->
<div id="test4">Test 4:
<math><msqrt><mi>X</mi><mn>1</mn></msqrt></math>
<math><msqrt><mn>1</mn><mi>X</mi><mn>2</mn></msqrt></math>
<math><msqrt><mn>1</mn><mn>2</mn><mi>X</mi><mn>3</mn></msqrt></math>
<math><msqrt><mn>1</mn><mn>2</mn><mn>3</mn><mi>X</mi><mn>4</mn></msqrt></math>
<math><mroot><mi>X</mi><mn>1</mn></mroot></math>
<math><mroot><mn>1</mn><mi>X</mi><mn>2</mn></mroot></math>
<math><mroot><mn>1</mn><mn>2</mn><mi>X</mi><mn>3</mn></mroot></math>
<math><mroot><mn>1</mn><mn>2</mn><mn>3</mn><mi>X</mi><mn>4</mn></mroot></math>
</div>
</body>
</html>