private Query ParseNewQuery_EmptyTerm(string queryText)
{
var parser = new SnLucParser();
var query = parser.Parse(queryText);
if (parser.ParseEmptyQuery)
{
var visitor = new EmptyTermVisitor();
return(visitor.Visit(query));
}
return(query);
}
public static LucQuery Parse(string luceneQueryText)
{
var result = new LucQuery();
result.TraceInfo.InputText = luceneQueryText;
result.TraceInfo.BeginParsingTime();
var parser = new SnLucParser();
Query query;
try
{
var replacedText = LucQueryTemplateReplacer.ReplaceTemplates(luceneQueryText);
query = parser.Parse(replacedText);
}
finally
{
result.TraceInfo.FinishParsingTime();
}
//Run EmptyTermVisitor if the parser created empty query term.
if (parser.ParseEmptyQuery)
{
var visitor = new EmptyTermVisitor();
result.Query = visitor.Visit(query);
}
else
{
result.Query = query;
}
var sortFields = new List <SortField>();
foreach (var control in parser.Controls)
{
switch (control.Name)
{
case SnLucLexer.Keywords.Select:
result.Projection = control.Value;
break;
case SnLucLexer.Keywords.Top:
result.Top = Convert.ToInt32(control.Value);
break;
case SnLucLexer.Keywords.Skip:
result.Skip = Convert.ToInt32(control.Value);
break;
case SnLucLexer.Keywords.Sort:
sortFields.Add(CreateSortField(control.Value, false));
break;
case SnLucLexer.Keywords.ReverseSort:
sortFields.Add(CreateSortField(control.Value, true));
break;
case SnLucLexer.Keywords.Autofilters:
result.EnableAutofilters = control.Value == SnLucLexer.Keywords.On ? FilterStatus.Enabled : FilterStatus.Disabled;
break;
case SnLucLexer.Keywords.Lifespan:
result.EnableLifespanFilter = control.Value == SnLucLexer.Keywords.On ? FilterStatus.Enabled : FilterStatus.Disabled;
break;
case SnLucLexer.Keywords.CountOnly:
result.CountOnly = true;
break;
}
}
result.SortFields = sortFields.ToArray();
result.FieldLevel = parser.FieldLevel;
return(result);
}