private static List <Token> GetTokens(string expression, Type dataType)
{
List <Token> tokens = new List <Token>();
FilterParser.LastError = null;
FilterParser.PrepareExpressionTokens(expression, tokens);
FilterParser.Tokenize(tokens, dataType, FilterParser.GetDefaultCriterionType(dataType));
FilterParser.TrimTokens(tokens);
return(tokens);
}
// If culture is null, CurrentThread.CurrentCulture will be used when necessary.
public static FilterCriterion Parse(string expression, Type dataType, CultureInfo culture)
{
FilterCriterion filterCriterion = null;
List <Token> tokens = new List <Token>();
FilterParser.LastError = null;
FilterParser.PrepareExpressionTokens(expression, tokens);
Type defaultCriterionType = (dataType == typeof(string)) ? typeof(ContainsFilterCriterion) : typeof(EqualToFilterCriterion);
FilterParser.Tokenize(tokens, dataType, defaultCriterionType);
FilterParser.TrimTokens(tokens);
filterCriterion = FilterParser.BuildCriterion(tokens, dataType, defaultCriterionType, culture);
return(filterCriterion);
}