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copilot/introduce-cpp-regex-parser
codeql/cpp/ql/lib/change-notes/released/12.1.0.md
copilot-swe-agent[bot] cc12bba930 Add C++ ECMAScript regex parser and tree view (initial implementation) 
Ports the Ruby regex library to C++/ECMAScript (`std::regex` default dialect):
- `cpp/ql/lib/semmle/code/cpp/regex/internal/ParseRegExp.qll`: ECMAScript-adapted parser over `StringLiteral`
- `cpp/ql/lib/semmle/code/cpp/regex/RegexTreeView.qll`: tree view implementing `RegexTreeViewSig`
- `cpp/ql/lib/qlpack.yml`: add `codeql/regex` dependency (already present)
- `cpp/ql/test/library-tests/regex/`: hermetic test corpus (test.cpp with std:: stubs), parse.ql, regexp.ql, RegExpConfig.qll
- `cpp/ql/lib/change-notes/released/12.1.0.md`: minorAnalysis change note

Note: .expected files are placeholders; run `codeql test run --accept` after database generation to populate them.
2026-07-21 09:01:50 +00:00

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12.1.0

Minor Analysis Improvements

  • Added an internal C++ regular-expression parse library and parse-tree view targeting the ECMAScript dialect, which is the default for std::regex. The new library lives in semmle.code.cpp.regex and implements the shared RegexTreeViewSig interface. No new queries are added in this release; the library provides the foundation for future C++ ReDoS analyses.