[pull] main from VirusTotal:main#215
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…o a RegexSet (#657) When writing complex YARA rules, it is incredibly common to evaluate a single variable or structure field access (e.g., vt.net.domain.raw) against dozens of distinct regular expressions within an or condition. Previously, YARA-X evaluated each of these match operations sequentially. This PR introduces an advanced compile-time and runtime optimization that detects identical match targets within or conditions, groups their regular expressions into a single multi-pattern RegexSet, and evaluates the entire set simultaneously in a single pass.
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