public static RevFilter create(String pattern) {if (pattern.length() == 0)throw new IllegalArgumentException(JGitText.get().cannotMatchOnEmptyString);if (SubStringRevFilter.safe(pattern))return new SubStringSearch(pattern);return new PatternSearch(pattern);}

public static RevFilter Create(string pattern){if (pattern.Length == 0){throw new ArgumentException(JGitText.Get().cannotMatchOnEmptyString);}if (SubStringRevFilter.Safe(pattern)){return new AuthorRevFilter.SubStringSearch(pattern);}return new AuthorRevFilter.PatternSearch(pattern);}
