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<!doctype html>
<title>Unclosed Constructs Are Valid</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meta name="author" title="Tab Atkins-Bittner">
<link rel=help href="https://drafts.csswg.org/css-syntax/#rule-defs">
<!--
Tests that unclosed constructs are valid and match grammars,
because grammar-matching only sees the "block",
not the opening/closing characters themselves.
-->
<script>
function validSelector(str) {
try {
document.querySelector(str);
return true;
} catch(e) {
return false;
}
}
function shouldBeValid(str) {
test(()=>{
assert_true(validSelector(str));
}, `"${str}" is a valid selector`)
}
shouldBeValid("[foo]");
shouldBeValid("[foo");
shouldBeValid(":nth-child(1)");
shouldBeValid(":nth-child(1");
</script>
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