c#正则表达式适配数学表达式（一）

近日在做某项目时候，里面涉及到了与数学表达式有关的计算，为了高效的适配数学表达式现以正则表达式进行提取予以分享，若有需要的小伙伴可参考，具体如下：

 /// <summary>
    /// 正则表达式助手
    /// </summary>
    public class RegularHelper
    {
        /// <summary>
        /// 管段Code规则
        /// 示例:WS2-WS3
        /// </summary>
        public const string RegularPipleCode = @"^((([0-9a-zA-Z])+){1}?\-(([0-9a-zA-Z])+){1}?){1}?$";
        /// <summary>
        /// 支持不带负号的小数或者整数
        /// 示例:0.25,2.5,2,15
        /// </summary>
        public const string RegularDecimalV1 = @"^((\d+(\.\d+)?))+$";
        /// <summary>
        /// 支持待负号的小数或者整数
        /// 示例:-2.5,2.5,0,2,15
        /// </summary>
        public const string RegularDecimalV2 = @"^(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+$";

        /// <summary>
        /// 缺陷密度数学表达式
        /// 匹配2.5),2.5],-2.5),-2.5]
        /// </summary>
        public const string RegularDesityV1 = @"^(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+(\)|\]){1}$";
        /// <summary>
        /// 缺陷密度数学表达式
        /// 匹配(2.5,[2.5,(-2.5,(-2.5
        /// </summary>
        public const string RegularDesityV2 = @"^(\(|\[){1}(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+$";

        /// <summary>
        /// 缺陷密度数学表达式
        /// 匹配(2.5,5.6],(2.5,5.6),[2.5,5.6],[2.5,5.6)
        /// </summary>
        public const string RegularDesityV3 = @"^(\(|\[){1}(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+(\,){1}(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+(\)|\]){1}$";


        /// <summary>
        /// 数学表达式
        /// 匹配RI＜5,RI≤5,RI≤-5,
        /// </summary>
        public const string RegularPlIndexV1 = @"^[a-zA-Z]+(\＜|\≤|\＝|\＞|\≥){1}(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+$";
        /// <summary>
        /// 数学表达式
        /// 匹配2＜RI≤5,2＜RI＜5,-5＜RI＜5
        /// </summary>
        public const string RegularPlIndexV2 = @"^(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+(\＜|\≤|){1}[a-zA-Z]+(\＜|\≤|){1}(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+$";

        /// <summary>
        /// 数数学表达式-非数字开头,
        /// 匹配RI＜,RI≤,RI2≤,RI2＞,RI2≥,开头为数字或字符，直到＜、≤、=、＞、≥结束
        /// </summary>
        public const string RegularNoStartWithDedimal = @"^[a-zA-Z]+(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))*[≤＜＝＞≥]+";

        /// <summary>
        /// 数数学表达式
        /// 数字开头表达式
        /// </summary>
        public const string RegularStartWithDecimal = @"^(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+";
        /// <summary>
        /// 数数学表达式
        /// 数字结尾表达式
        /// </summary>
        public const string RegularEndWithDecimal = @"(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+$";
        /// <summary>
        /// 数数学表达式
        /// 包含数字表达式
        /// </summary>
        public const string RegularContainDecimal = @"(((\-)?\d+(\.\d+)?)|(\d+(\.\d+)?))+";

    }