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LibRegex: Implement section B.1.4. of the ECMA262 spec

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This allows the parser to deal with crazy patterns like the one
in #5517.
This commit is contained in:
AnotherTest 2021-02-26 22:49:34 +03:30 • committed by Andreas Kling
parent ce5fe2a6e8
commit f05e518cbc
7 changed files with 382 additions and 91 deletions
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4
Userland/Libraries/LibRegex/RegexMatch.h
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@ -136,7 +136,9 @@ public:
u32 operator[](size_t index) const
{
if (is_u8_view()) {
return u8view()[index];
i8 ch = u8view()[index];
u8 value = *reinterpret_cast<u8*>(&ch);
return static_cast<u32>(value);
}
return u32view().code_points()[index];
}