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Adrià Arrufat
433ca9b747
The raw URL lives on `pattern.Url` next to the lowercased one, so `pattern.matches` owns the `.regex` arm like every other kind and the engine stops special-casing it. `Request.init` does the lowercasing itself, as `fromHttp` already had to, instead of asking callers for both spellings. The regex shape now spells its uncertain marker as `*` and keeps non-token literals as one marker, so it is read by the same bounded-token loop as a plain pattern rather than a copy of it. The quantifier parser keeps only what it uses: whether the atom may be absent. `Regex.matches` runs on a stack-first allocator: PCRE2 wants a match data block and 20KB of backtracking frames per call, which no longer touches the heap in the common case. A filter holds a pointer to its regex, keeping `NetworkFilter` at its previous size.