using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace DataBaseProcessing
{
    public class HolidayRecognizer
    {
        // 定义常见节假日的关键词
        private static readonly string[] holidays =
        {
            "元旦", "春节", "清明节", "劳动节", "端午节", "中秋节", "国庆节", "暑假", "春运"
        };

        // 构建正则表达式来匹配节假日
        private static string holidayPattern = string.Join("|", holidays);

        // 判断输入的句子中是否包含节假日
        public static bool ContainsHoliday(string input)
        {
            // 使用正则表达式来匹配节假日
            Regex regex = new Regex(holidayPattern);
            return regex.IsMatch(input);
        }

        // 如果包含节假日，返回匹配的节假日名称
        public static string GetHolidayName(string input)
        {
            Regex regex = new Regex(holidayPattern);
            Match match = regex.Match(input);
            return match.Success ? match.Value : "未找到节假日";
        }
    }
}