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<head>
<script>
function testChar(ch)
{
// Strings a and b selected here do not have any 'interaction' between them.
var a = "\u0915\u093E"
var b = "\u0916";
var span = document.getElementById("characters");
span.firstChild.data = a + b;
var abWidth = span.offsetWidth;
span.firstChild.data = a;
var aWidth = span.offsetWidth;
span.firstChild.data = a + String.fromCharCode(ch) + b;
var abWithChWidth = span.offsetWidth;
if (abWithChWidth > abWidth)
return 1;
if (abWidth > aWidth)
return 0;
return 1;
}
function test()
{
if (window.layoutTestController)
layoutTestController.dumpAsText();
var failedCount = 0;
for (var i = 1; i < 32; ++i)
if (i != 9 && i != 10 && i != 13)
failedCount += testChar(i);
for (var i = 0x7F; i < 0xA0; ++i)
failedCount += testChar(i);
failedCount += testChar(0xAD);
// ZWJ (U+200C) and ZWNJ (U+200D) are excluded because they
// can affect the rendering in complex script text.
failedCount += testChar(0x200B);
failedCount += testChar(0x200E);
failedCount += testChar(0x200F);
failedCount += testChar(0x202A);
failedCount += testChar(0x202B);
failedCount += testChar(0x202C);
failedCount += testChar(0x202D);
failedCount += testChar(0x202E);
failedCount += testChar(0xFEFF);
failedCount += testChar(0xFFFC);
var testArea = document.getElementById("testArea");
testArea.parentNode.removeChild(testArea);
if (failedCount > 0)
result = "FAIL: " + failedCount + " characters had non-zero width" +
" or failed to get measured.";
else
result = "PASS: All characters had zero-width.";
document.getElementById("result").firstChild.data = result;
}
</script>
</head>
<body onload="test()">
<p>This test checks various characters that should always be zero width to ensure that they are when enclosed by complex script characters.
The WebKit text system ensures this in a way that's independent of the fonts installed on the system.</p>
<p id="result">FAIL: Script did not run to completion.</p>
<p id="testArea"><span id="characters">काख</span></p>
</body>
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