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LibRegex: Avoid calling GenericLexer::consume() past EOF
The consume(size_t) overload consumes "at most" as many bytes as requested, but consume() consumes exactly one byte. This commit makes sure to avoid consuming past EOF. Fixes #18324. Fixes #18325.
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2 changed files with 8 additions and 1 deletions
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@ -606,6 +606,8 @@ TEST_CASE(ECMA262_parse)
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{ "((?=lg)?[vl]k\\-?\\d{3}) bui| 3\\.[-\\w; ]{10}lg?-([06cv9]{3,4})"sv, regex::Error::NoError, ECMAScriptFlags::BrowserExtended }, // #12373, quantifiable assertions.
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{ parse_test_case_long_disjunction_chain.view() }, // A whole lot of disjunctions, should not overflow the stack.
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{ "(\"|')(?:(?!\\2)[^\\\\\\r\\n]|\\\\.)*\\2"sv, regex::Error::NoError, ECMAScriptFlags::BrowserExtended }, // LegacyOctalEscapeSequence should not consume too many chars (and should not crash)
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// #18324, Capture group counter skipped past EOF.
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{ "\\1[\\"sv, regex::Error::InvalidNumber },
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};
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for (auto& test : tests) {
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