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<!doctype html>
<title>Escaped EOF</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/#consume-escaped-code-point">
<link rel=help href="https://drafts.csswg.org/css-syntax/#consume-string-token">
<link rel=help href="https://drafts.csswg.org/css-syntax/#consume-token">
<style>foo { --foo:foo\</style>
<style>foo { --foo:1foo\</style>
<style>foo { --foo:url(foo\</style>
<style>foo { --foo:"foo\</style>
<script>
test(()=>{
assert_throws_dom("SyntaxError", ()=>{document.querySelector("#123");}, "numeric hash token is invalid in a selector");
document.querySelector("#foo\\"); // escaped-EOF in a hash token is valid in a selector
}, "Escaped EOF turns into a U+FFFD in a hash token, makes it 'ID' type.");
test(()=>{
const sh = document.styleSheets[0];
const val = sh.cssRules[0].style.getPropertyValue("--foo");
assert_equals("foo\ufffd", val);
}, "Escaped EOF turns into a U+FFFD in an ident token.");
test(()=>{
const sh = document.styleSheets[1];
const val = sh.cssRules[0].style.getPropertyValue("--foo");
assert_equals("1foo\ufffd", val);
}, "Escaped EOF turns into a U+FFFD in a dimension token.");
test(()=>{
const sh = document.styleSheets[2];
const val = sh.cssRules[0].style.getPropertyValue("--foo");
assert_equals("url(foo\ufffd)", val);
}, "Escaped EOF turns into a U+FFFD in a url token.");
test(()=>{
const sh = document.styleSheets[3];
const val = sh.cssRules[0].style.getPropertyValue("--foo");
assert_equals(`"foo"`, val);
}, "Escaped EOF in a string is ignored.");
</script>
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