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/*
* 作用：常用正则表达式验证。
* */
using System.Text.RegularExpressions;
namespace Helper.Core.Library
{
#region 逻辑处理辅助枚举
public enum RegexTypeEnum : int
{
/// <summary>
/// 成功
/// </summary>
Success = 0,
/// <summary>
/// 范围不正确
/// </summary>
Range = 1,
/// <summary>
/// 长度
/// </summary>
Length = 2,
/// <summary>
/// 失败
/// </summary>
Failed = 3
}
#endregion
public class RegexHelper
{
#region 对外公开方法
/// <summary>
/// 匹配，不区分大小写
/// </summary>
/// <param name="input"></param>
/// <param name="pattern"></param>
/// <returns></returns>
public static bool IsMatch(string input, string pattern)
{
return Regex.IsMatch(input, pattern, RegexOptions.IgnoreCase);
}
#region RegexTypeEnum
/// <summary>
/// 验证整数
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="min">最小值/长度</param>
/// <param name="max">最大值/长度</param>
/// <param name="isRange">是否范围，false 按长度检查，true 按数值范围检查</param>
/// <returns></returns>
public static RegexTypeEnum Int(string input, int min = 0, int max = 0, bool isRange = false)
{
bool matchStatus = IsMatch(input, @"^-?[0-9]+$");
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
if (!isRange)
{
matchStatus = IsMatch(input, @"^-?[0-9]{m,n}$".Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
else
{
if (int.Parse(input) < min || int.Parse(input) > max) return RegexTypeEnum.Range;
}
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证浮点数
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="dotMin">小数点最小长度</param>
/// <param name="dotMax">小数点最大长度</param>
/// <param name="min">最小值/长度</param>
/// <param name="max">最大值/长度</param>
/// <param name="isRange">是否范围，false 按长度检查，true 按数值范围检查</param>
/// <returns></returns>
public static RegexTypeEnum Float(string input, int dotMin = 0, int dotMax = 0, float min = 0f, float max = 0f, bool isRange = false)
{
string pattern = @"^-?[0-9]+([.][0-9]+)?$";
if (dotMax > 0 && dotMin > 0 && dotMin <= dotMax) pattern = @"^-?[0-9]+[.][0-9]{m,n}$".Replace("m", dotMin.ToString()).Replace("n", dotMax.ToString());
bool matchStatus = IsMatch(input, pattern);
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0f && max >= min)
{
if (!isRange)
{
pattern = @"^-?[0-9]{m,n}([.][0-9]+)?$".Replace("m", min.ToString("f0")).Replace("n", max.ToString("f0"));
if (dotMax > 0 && dotMin > 0 && dotMin <= dotMax) pattern = @"^-?[0-9]{m,n}[.][0-9]{a,b}$".Replace("m", min.ToString("f0")).Replace("n", max.ToString("f0")).Replace("a", dotMin.ToString()).Replace("b", dotMax.ToString());
matchStatus = IsMatch(input, pattern);
if (!matchStatus) return RegexTypeEnum.Length;
}
else
{
if (float.Parse(input) < min || float.Parse(input) > max) return RegexTypeEnum.Range;
}
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证字母
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum Alphabet(string input, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[a-zA-Z]+$");
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[a-zA-Z]{m,n}$".Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证字母/特殊字符
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="spec">特殊字符</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum Alphabet(string input, string spec, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[a-zA-Z*]+$".Replace("*", spec));
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[a-zA-Z*]{m,n}$".Replace("*", spec).Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证字母数字
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum AlphabetDigit(string input, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[a-zA-Z0-9]+$");
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[a-zA-Z0-9]{m,n}$".Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证字母数字/特殊字符
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="spec">特殊字符</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum AlphabetDigit(string input, string spec, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[a-zA-Z0-9*]+$".Replace("*", spec));
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[a-zA-Z0-9*]{m,n}$".Replace("*", spec).Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证汉字
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum Chinese(string input, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[\u4e00-\u9fa5]+$");
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[\u4e00-\u9fa5]{m,n}$".Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证汉字/特殊字符
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="spec">特殊字符</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum Chinese(string input, string spec, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[\u4e00-\u9fa5*]+$".Replace("*", spec));
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[\u4e00-\u9fa5*]{m,n}$".Replace("*", spec).Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证双字节
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum DoubleByte(string input, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[^\x00-\xff]+$");
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[^\x00-\xff]{m,n}$".Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证中文英文数字
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum Word(string input, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[\u4e00-\u9fa5A-Za-z0-9]+$");
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[\u4e00-\u9fa5A-Za-z0-9]{m,n}$".Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
/// <summary>
/// 验证中文英文数字/特殊字符
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="spec">特殊字符</param>
/// <param name="min">最小长度</param>
/// <param name="max">最大长度</param>
/// <returns></returns>
public static RegexTypeEnum Word(string input, string spec, int min = 0, int max = 0)
{
bool matchStatus = IsMatch(input, @"^[\u4e00-\u9fa5A-Za-z0-9*]+$".Replace("*", spec));
if (!matchStatus) return RegexTypeEnum.Failed;
if (max > 0 && max >= min)
{
matchStatus = IsMatch(input, @"^[\u4e00-\u9fa5A-Za-z0-9*]{m,n}$".Replace("*", spec).Replace("m", min.ToString()).Replace("n", max.ToString()));
if (!matchStatus) return RegexTypeEnum.Length;
}
return RegexTypeEnum.Success;
}
#endregion
#region Boolean
/// <summary>
/// 验证是否整数
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <returns></returns>
public static bool IsInt(string input)
{
return Int(input) == RegexTypeEnum.Success;
}
/// <summary>
/// 验证是否符点数
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <returns></returns>
public static bool IsFloat(string input)
{
return Float(input) == RegexTypeEnum.Success;
}
/// <summary>
/// 验证是否字母/特殊字符
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="spec">特殊字符</param>
/// <returns></returns>
public static bool IsAlphabet(string input, string spec = null)
{
if (string.IsNullOrEmpty(spec)) return Alphabet(input) == RegexTypeEnum.Success;
return Alphabet(input, spec) == RegexTypeEnum.Success;
}
/// <summary>
/// 验证是否字母数字/特殊字符
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="spec">特殊字符</param>
/// <returns></returns>
public static bool IsAlphabetDigit(string input, string spec = null)
{
if (string.IsNullOrEmpty(spec)) return AlphabetDigit(input) == RegexTypeEnum.Success;
return AlphabetDigit(input, spec) == RegexTypeEnum.Success;
}
/// <summary>
/// 验证是否汉字/特殊字符
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="spec">特殊字符</param>
/// <returns></returns>
public static bool IsChinese(string input, string spec = null)
{
if (string.IsNullOrEmpty(spec)) return Chinese(input) == RegexTypeEnum.Success;
return Chinese(input, spec) == RegexTypeEnum.Success;
}
/// <summary>
/// 验证是否双字节
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <returns></returns>
public static bool IsDoubleByte(string input)
{
return DoubleByte(input) == RegexTypeEnum.Success;
}
/// <summary>
/// 验证是否中文英文数字/特殊字符
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <param name="spec">特殊字符</param>
/// <returns></returns>
public static bool IsWord(string input, string spec = null)
{
if (string.IsNullOrEmpty(spec)) return Word(input) == RegexTypeEnum.Success;
return Word(input, spec) == RegexTypeEnum.Success;
}
/// <summary>
/// 验证是否邮件
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <returns></returns>
public static bool IsEmail(string input)
{
return IsMatch(input, @"^[a-z0-9]+([._-]*[a-z0-9]+)*@[a-z0-9]+([.][a-z0-9]+)*$");
}
/// <summary>
/// 验证是否短日期 yyyy-MM-dd
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <returns></returns>
public static bool IsDate(string input)
{
string pattern = @"^(((01[0-9]{2}|0[2-9][0-9]{2}|[1-9][0-9]{3})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|((01[0-9]{2}|0[2-9][0-9]{2}|[1-9][0-9]{3})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|((01[0-9]{2}|0[2-9][0-9]{2}|[1-9][0-9]{3})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((04|08|12|16|[2468][048]|[3579][26])00))-0?2-29))$";
return IsMatch(input, pattern);
}
/// <summary>
/// 验证是否长日期 yyyy-MM-dd hh:mm:ss
/// </summary>
/// <param name="input">要验证的字符串</param>
/// <returns></returns>
public static bool IsFullDate(string input)
{
string pattern = @"^(((01[0-9]{2}|0[2-9][0-9]{2}|[1-9][0-9]{3})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|((01[0-9]{2}|0[2-9][0-9]{2}|[1-9][0-9]{3})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|((01[0-9]{2}|0[2-9][0-9]{2}|[1-9][0-9]{3})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((04|08|12|16|[2468][048]|[3579][26])00))-0?2-29)) (20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d$";
return IsMatch(input, pattern);
}
/// <summary>
/// 验证是否是脚本
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsScript(string input)
{
string pattern = @"[<>*]+";
return IsMatch(input, pattern);
}
#endregion
#endregion
}
}