hamann-ausgabe-core/HaWeb/SearchHelpers/SearchRules.cs

namespace HaWeb.SearchHelpers;
using System.Text;
using System.Web;

using TagFuncList = List<(Func<HaXMLReader.EvArgs.Tag, HaWeb.HTMLParser.LineXMLHelper<SearchState>, bool>, Action<System.Text.StringBuilder, HaXMLReader.EvArgs.Tag, HaWeb.HTMLParser.LineXMLHelper<SearchState>>)>;
using TextFuncList = List<(Func<HaXMLReader.EvArgs.Text, HaWeb.HTMLParser.LineXMLHelper<SearchState>, bool>, Action<System.Text.StringBuilder, HaXMLReader.EvArgs.Text, HaWeb.HTMLParser.LineXMLHelper<SearchState>>)>;
using WhitespaceFuncList = List<(Func<HaXMLReader.EvArgs.Whitespace, HaWeb.HTMLParser.LineXMLHelper<SearchState>, bool>, Action<System.Text.StringBuilder, HaXMLReader.EvArgs.Whitespace, HaWeb.HTMLParser.LineXMLHelper<SearchState>>)>;


public class SearchRules {
    public static readonly TextFuncList TextRules = new TextFuncList() {
        ( (x, _) => true, (sb, text, reader) => {
            var t = text.Value;
            if (reader.State.Normalize) 
                t = HaWeb.SearchHelpers.StringHelpers.NormalizeWhiteSpace(t); 
            sb.Append(t);
            var sw = reader.State.SearchWord;
            if (sb.Length >= sw.Length) {
                if (sb.ToString().ToLower().Contains(sw)) {
                    if (reader.State.Results == null) 
                        reader.State.Results = new List<(string Page, string Line)>();
                    reader.State.Results.Add((reader.CurrentPage, reader.CurrentLine));
                }
                sb.Remove(0, sb.Length - sw.Length);
            }
        })
    };

    public static readonly WhitespaceFuncList WhitespaceRules= new WhitespaceFuncList() {
        ( (x, _) => true, (sb, text, reader) => {
            var t = text.Value;
            if (reader.State.Normalize) 
                t = HaWeb.SearchHelpers.StringHelpers.NormalizeWhiteSpace(t); 
            sb.Append(t);
            var sw = reader.State.SearchWord;
            if (sb.Length >= sw.Length) {
                if (sb.ToString().Contains(sw)) {
                    if (reader.State.Results == null) 
                        reader.State.Results = new List<(string Page, string Line)>();
                    reader.State.Results.Add((reader.CurrentPage, reader.CurrentLine));
                }
                sb.Remove(0, sb.Length - sw.Length);
            }
        })
    };
}