using System.Text.RegularExpressions;
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namespace HStation.Service
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{
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/// <summary>
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/// 正则辅助类
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/// </summary>
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internal static class RevitJsonRegexHelper
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{
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private const string _numericPattern = @"[+-]?\d*[.]?\d*";//数值模式
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private const string _numericAbsolutePattern = @"^[+-]?\d*[.]?\d*$";//数值绝对模式
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/// <summary>
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/// 匹配第一个数值
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/// </summary>
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public static bool MatchNumeric(this string numericStr, out double numeric)
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{
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numeric = 0;
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if (string.IsNullOrEmpty(numericStr))
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{
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return false;
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}
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var match = Regex.Match(numericStr, _numericPattern);
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if (string.IsNullOrEmpty(match.Value))
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{
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return false;
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}
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if (Regex.IsMatch(match.Value, _numericAbsolutePattern))
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{
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numeric = double.Parse(match.Value);
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return true;
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}
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return false;
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}
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/// <summary>
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/// 匹配第一个数值
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/// </summary>
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public static bool MatchNumeric(this JToken jtoken, out double numeric)
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{
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numeric = 0;
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if (jtoken == null)
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{
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return false;
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}
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return jtoken.ToString().MatchNumeric(out numeric);
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}
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}
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}
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