Hallo,

In Examine I have added an index and a searchprocedure with wildcards. So when the user for example only enters 'Belg' also all entries for 'België' should be returned.

Here's the code:

if (!String.IsNullOrEmpty(SearchView.SearchTerm))
{
     foreach (string token in Helper.Tokenize(SearchView.SearchTerm))
     {
         Criteria.GroupedOr(SearchView.SearchFields.ToArray(), token.MultipleCharacterWildcard());
     }
 }
 SearchView.Results = Searcher.Search(Criteria).ToList().OrderByDescending(x => x.Score);

This works fine. But now I want to add a custom analyzer, that replaces all special characters, for instance 'ë' becomes an 'e'. So when the user enters 'België' or 'Belgie' in both cases the same results are returned.

This means that the searchterm the user has entered needs to be converted the same way that the indexes are. I can do this by using a QueryParser. Since these return a full query I cannot use the GroupedOr method anymore, because this works only on strings. So I make a raw query and pass that to my searcher:

MultiFieldQueryParser queryParser = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_29, SearchView.SearchFields.ToArray(), new TechKeywordAnalyzer());

if (!String.IsNullOrEmpty(SearchView.SearchTerm))
{
    foreach (string token in Helper.Tokenize(SearchView.SearchTerm))
    {
        Query.AppendFormat("+({0}) ", queryParser.Parse((token));
    }
}

SearchView.Results = Searcher.Search(Criteria.RawQuery(Query.ToString())).ToList().OrderByDescending(x => x.Score);

This also works, but: I cannot enter the wildcardsearch in this one!

When I change the parameter token to token.MultipleCharacterWildCard() in the Query.AppendFormat method nothing is passed to the analyzer...

I guess the answer should be in the first code-snippet. When I look in the debugger I can see that Criteria (which is an ISearchCriteria) itself contains a QueryParser of my custom analyzer. I expected that the token I pass to this Criteria in the GroupedOr-method would be parsed through this QueryParser, but it seems that is not the case.

Does anyone have a solution for this problem?

thanks,

Frans