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LibRegex: Account for eof after \<x> when 'x' leads to legacy behaviour

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Ali Mohammad Pur 2022-09-06 23:55:09 +04:30 committed by Ali Mohammad Pur
parent 48442059fc
commit 660d2b53b1
Notes: sideshowbarker 2024-07-17 07:14:34 +09:00 
Author: https://github.com/alimpfard
Commit: https://github.com/SerenityOS/serenity/commit/660d2b53b1
Pull-request: https://github.com/SerenityOS/serenity/pull/15148
2 changed files with 2 additions and 1 deletions
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1
Tests/LibRegex/Regex.cpp
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@ -603,6 +603,7 @@ TEST_CASE(ECMA262_parse)
{ "(?<𝓑𝓻𝓸𝔀𝓷>a)"sv },
{ "((?=lg)?[vl]k\\-?\\d{3}) bui| 3\\.[-\\w; ]{10}lg?-([06cv9]{3,4})"sv, regex::Error::NoError, ECMAScriptFlags::BrowserExtended }, // #12373, quantifiable assertions.
{ parse_test_case_long_disjunction_chain.view() }, // A whole lot of disjunctions, should not overflow the stack.
{ "(\"|')(?:(?!\\2)[^\\\\\\r\\n]|\\\\.)*\\2"sv, regex::Error::NoError, ECMAScriptFlags::BrowserExtended }, // LegacyOctalEscapeSequence should not consume too many chars (and should not crash)
};
for (auto& test : tests) {

2
Userland/Libraries/LibRegex/RegexParser.cpp
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@ -1582,7 +1582,7 @@ bool ECMA262Parser::parse_atom_escape(ByteCode& stack, size_t& match_length_mini
}
// If not, put the characters back.
back(escape_str.length());
back(escape_str.length() + (done() ? 0 : 1));
}
Vector<CompareTypeAndValuePair> escape_compares;