我有下面的正则表达式，它匹配第三个参数为“null”或“string.empty”的函数“searchresult”：

^(.*\.)?searchresult\((?:[^,]*,){2}\s*(null|string\.Empty)\s*(?:,[^,]*){2}\);

正则表达式不应与以下行匹配

errorList.Add(new Microsoft.Practices.EnterpriseLibrary.Validation.searchresult("[Validation_MaxLength_ErrorMessage_2000]", staffonlineInquiry, "onlineInquiryResponseInformation", string.Empty, null));
searchresult error = new searchresult("[Validation_notwellLeavecheckReturnToWorkDateYes_ErrorMessage]|[Label_IsnotwellLeavecheckReturnToWorkDate_Text]", target, "notwellLeavecheckReturnToWorkDate", null, null);

正则表达式应与以下行匹配

errorList.Add(new Microsoft.Practices.EnterpriseLibrary.Validation.searchresult("[Validation_MaxLength_ErrorMessage_2000]", enquiry, null, string.Empty, null));
searchresult error = new searchresult("[Validation_notwellLeavecheckReturnToWorkDateYes_ErrorMessage]|[Label_IsnotwellLeavecheckReturnToWorkDate_Text]", target, string.Empty, null, null);