public IFilter Parse()
{
var tokenizer = new Tokenizer(Filter);
tokens = tokenizer.Tokenize();
pos = -2;
string conjunction;
ListFilter.JoinType joinType;
FilterSet filter = new FilterAndSet();
IFilter thisFilter;
IFilter last;
FilterOrSet orSet;
while (++pos < tokens.Count)
{
conjunction = pos == -1 ? "," : tokens[pos];
var name = GetNextToken("field name");
var oper = GetNextToken("operator");
var value = GetNextToken("value");
if (Tokens.IsListStart(value))
{
joinType = ListFilter.JoinType.And;
var values = new List<string>();
while (!Tokens.IsListEnd(tokens[pos]) && !Tokens.IsListEnd(GetNextToken("value")))
{
values.Add(tokens[pos]);
if (GetNextToken("conjunction or list end") == "|")
joinType = ListFilter.JoinType.Or;
}
thisFilter = new ListFilter(name, oper, values, joinType);
}
else
thisFilter = new Filter(name, oper, value);
if (conjunction == ",") // and
filter.Add(thisFilter);
else if (conjunction == "|") // or
{
last = filter.Last();
if (!(last is FilterOrSet))
{
filter.RemoveAt(filter.Count - 1);
orSet = new FilterOrSet();
orSet.Add(last);
orSet.Add(thisFilter);
filter.Add(orSet);
}
else
((FilterOrSet)last).Add(thisFilter);
}
else
throw new ParseException("Parser: Unexpected '{0}', expected conjunction instead.", conjunction);
}
return filter;
}
public IFilter Parse()
{
var tokenizer = new Tokenizer(Filter);
tokens = tokenizer.Tokenize();
pos = -2;
string conjunction;
FilterSet filter = new FilterAndSet();
Filter thisFilter;
IFilter last;
FilterOrSet orSet;
while (++pos < tokens.Count)
{
conjunction = pos == -1 ? "," : tokens[pos];
thisFilter = new Filter(GetNextToken("field name"), GetNextToken("operator"), GetNextToken("value"));
if (conjunction == ",") // and
filter.Add(thisFilter);
else if (conjunction == "|") // or
{
last = filter.Last();
if (!(last is FilterOrSet))
{
filter.RemoveAt(filter.Count - 1);
orSet = new FilterOrSet();
orSet.Add(last);
orSet.Add(thisFilter);
filter.Add(orSet);
}
else
((FilterOrSet)last).Add(thisFilter);
}
else
throw new ParseException("Parser: Unexpected '{0}', expected conjunction instead.", conjunction);
}
return filter;
}
