C# 校正 正則

標籤：郵箱   存在   res   ram   地址   als   match   ret   options   

郵箱驗證

/// <summary>
/// 是否郵箱
/// </summary>
/// <param name="value">郵箱地址</param>
/// <param name="isRestrict">是否按strict 模式驗證</param>
/// <returns></returns>
public static bool IsEmail(string value, bool isRestrict=false)
{
    if (value.IsEmpty())
    {
        return false;
    }
    string pattern = isRestrict
        ? @"^(?("")("".+?""@)|(([0-9a-zA-Z]((\.(?!\.))|[-!#\$%&‘\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-zA-Z])@))(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,6}))$"
        : @"^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$";
       
    return value.IsMatch(pattern, RegexOptions.IgnoreCase);
}

/// <summary>
/// 是否存在郵箱
/// </summary>
/// <param name="value">值</param>
/// <param name="isRestrict">是否按strict 模式驗證</param>
/// <returns></returns>
public static bool HasEmail(string value, bool isRestrict = false)
{
    if (value.IsEmpty())
    {
        return false;
    }
    string pattern = isRestrict
        ? @"^(?("")("".+?""@)|(([0-9a-zA-Z]((\.(?!\.))|[-!#\$%&‘\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-zA-Z])@))(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,6}))$"
        : @"^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$";
    return value.IsMatch(pattern, RegexOptions.IgnoreCase);
}

C# 校正 正則