public static List <LocAndValue <String> > FindRegularExpressLoc(struRegularExpressFeature KeyWord, MyRootHtmlNode root)
{
var list = new List <LocAndValue <String> >();
foreach (var paragrah in root.Children)
{
//从各个段落的内容中取得：内容包含了内置列表，所以，这里不再重复
foreach (var contentNode in paragrah.Children)
{
list.AddRange(RegularExFinder(contentNode.PositionId, contentNode.Content, KeyWord));
}
}
return(list);
}
/// <summary>
/// 正则表达式检索方法(前置，正则，后置)
/// </summary>
/// <param name="loc"></param>
/// <param name="OrgString"></param>
/// <param name="regularfeature"></param>
/// <param name="SplitChar"></param>
/// <returns></returns>
public static List <LocAndValue <String> > RegularExFinder(int loc, string OrgString, struRegularExpressFeature regularfeature, string SplitChar = "")
{
var list = new List <LocAndValue <String> >();
var reglist = RegularTool.GetRegular(OrgString, regularfeature.RegularExpress);
foreach (var reg in reglist)
{
//根据前后词语进行过滤
bool IsBeforeOK = true;
string BeforeString = "";
if (regularfeature.LeadingWordList != null)
{
IsBeforeOK = false;
//前置词语
foreach (var leading in regularfeature.LeadingWordList)
{
if (reg.Index - leading.Length >= 0)
{
var word = OrgString.Substring(reg.Index - leading.Length, leading.Length);
if (word.Equals(leading))
{
BeforeString = leading;
IsBeforeOK = true;
break;
}
else
{
continue;
}
}
}
}
if (!IsBeforeOK)
{
continue;
}
bool IsAfterOK = true;
string AfterString = "";
if (regularfeature.TrailingWordList != null)
{
IsAfterOK = false;
//后置词语
foreach (var trailing in regularfeature.TrailingWordList)
{
if (reg.Index + reg.Length + trailing.Length <= OrgString.Length)
{
var word = OrgString.Substring(reg.Index + reg.Length, trailing.Length);
if (word.Equals(trailing))
{
AfterString = trailing;
IsAfterOK = true;
break;
}
else
{
continue;
}
}
}
}
if (IsBeforeOK && IsAfterOK)
{
var Loc = new LocAndValue <String>()
{
Value = BeforeString + SplitChar + reg.RawData + SplitChar + AfterString,
StartIdx = reg.Index - BeforeString.Length,
Loc = loc
};
list.Add(Loc);
}
}
return(list);
}
