pub const REGEX_BACKTRACK_LIMIT: usize = 1_000_000;Expand description
Maximum backtracks the fancy-regex matcher is allowed per call.
Rules carrying a matches operator are compiled with this limit
baked in; the matcher returns Err(Error::BacktrackLimitExceeded)
when a pathological input would otherwise spin (RegEx DoS).
1e6 is the spec figure and roughly matches “100 ms on a single core” for typical adversarial inputs in benchmark harnesses.