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LibRegex: Allow references to capture groups that aren't parsed yet

This only applies to the ECMA262 parser.
This behaviour is an ECMA262-specific quirk, such references always
generate zero-length matches (even on subsequent passes).
Also adds a test in LibJS's test suite.

Fixes #6039.
This commit is contained in:
AnotherTest 2021-04-01 18:30:47 +04:30 committed by Andreas Kling
parent 804ab79995
commit 6bbb26fdaf
6 changed files with 80 additions and 6 deletions

View file

@ -93,6 +93,7 @@ public:
void set_source(const StringView source) { m_source = source; }
bool try_skip(char);
char skip();
const auto& source() const { return m_source; }
private:
ALWAYS_INLINE char peek(size_t offset = 0) const;