fix(logs): match copilot log-grep patterns with RE2 (linear time) - #5987

Merged

waleedlatif1 merged 9 commits into

worktree-redos-log-grep

Jul 28, 2026

Commits on Jul 28, 2026

fix(logs): match copilot log-grep patterns literally, never as a regex
waleedlatif1
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improvement(logs): only flag genuine regex intent, document the truncated invariant
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fix(logs): match log-grep patterns with RE2 instead of dropping regex support
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fix(security): route every caller-supplied regex through the linear-time engine
waleedlatif1
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fix(security): drop safe-regex2, keep lookaround splits on the linear engine
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test(pii): drop the custom-pattern editor's backtracking-screen assertion
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fix(chunkers): support lookaround with an affix, and keep JS whitespace semantics
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fix(security): correct three defects in the lookaround split decomposition
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test(security): pin engine parity with a differential suite
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