/// <summary>
/// 获取正则匹配想
/// </summary>
/// <param name="xmlNode"></param>
/// <returns></returns>
private SnifferItem CreateSnifferItem(XmlNode xmlNode)
{
if (xmlNode == null)
{
return(null);
}
SnifferItem snifferItem = new SnifferItem();
snifferItem.RegexString = xmlNode.SelectSingleNode("RegexString").InnerText;
snifferItem.ValueGroupIndex = int.Parse(xmlNode.SelectSingleNode("ValueGroupIndex").InnerText);
return(snifferItem);
}
/// <summary>
/// 根据 Item 正则匹配获取对应的值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="snifferItem"></param>
/// <param name="inputText"></param>
/// <param name="defaultValue"></param>
/// <returns></returns>
public static T Regex <T>(this SnifferItem snifferItem, string inputText, T defaultValue)
{
if (string.IsNullOrWhiteSpace(inputText) || snifferItem == null)
{
return(defaultValue);
}
RegexOptions regexOptions = RegexOptions.IgnoreCase;
regexOptions |= RegexOptions.Singleline;
Regex regex = new Regex(snifferItem.RegexString, regexOptions);
var match = regex.Match(inputText);
if (match.Success)
{
var result = match.Groups[snifferItem.ValueGroupIndex].Value;
return((T)Convert.ChangeType(result, typeof(T)));
}
else
{
return(defaultValue);
}
}
