public SszExpression(SszExpression that)
{
_expressionString = that._expressionString;
IsValidInternal = that.IsValidInternal;
_isUiToDataSourceWarning = that._isUiToDataSourceWarning;
_expressionType = that._expressionType;
_lambdaExpression = that._lambdaExpression;
_delegate = that._delegate;
}
private static string ComputeValueOfSszQuery(string sszQuery,
Func <string, string> getConstantValue, CsvDb?csvDb,
ref int iterationN)
{
string q = sszQuery.Substring(2, sszQuery.Length - 3);
var firstLevelSszQueries = FindFirstLevelSpecialText(q, '%', false);
foreach (string firstLevelSszQuery in firstLevelSszQueries)
{
string valueOfQuery =
ComputeValueOfSszQuery(firstLevelSszQuery, getConstantValue, csvDb, ref iterationN);
q = q.Replace(firstLevelSszQuery, EscapeForSszQuery(valueOfQuery));
}
var i = q.IndexOf("=>");
if (i >= 0)
{
var dataSourceValues = new List <object>();
string args = UnescapeForSszQuery(q.Substring(0, i).Trim());
string lambda = UnescapeForSszQuery(q.Substring(i + 2).Trim());
foreach (var a in args.Split(','))
{
string constant = a.Trim();
if (constant == @"")
{
return(@""); // Query is not resolved
}
constant = @"%(" + constant + @")";
string valueOfQuery = getConstantValue(constant);
dataSourceValues.Add(valueOfQuery);
}
var evaluated = new SszExpression(lambda).Evaluate(dataSourceValues.ToArray(), null, null, null);
return(new Any(evaluated).ValueAsString(false));
}
string[] parts = q.Split(',');
if (parts.Length == 1 || parts.Length == 2)
{
string constant = UnescapeForSszQuery(parts[0].Trim());
if (constant == @"")
{
return(@""); // Query is not resolved
}
constant = @"%(" + constant + @")";
string valueOfSszQuery = getConstantValue(constant);
if (valueOfSszQuery == @"" && parts.Length == 2)
{
valueOfSszQuery = UnescapeForSszQuery(parts[1].Trim());
}
return(valueOfSszQuery);
}
if ((parts.Length == 3 || parts.Length == 4) && csvDb is not null)
{
string fileName = UnescapeForSszQuery(parts[0].Trim());
string key = UnescapeForSszQuery(parts[1].Trim());
int column;
if (!int.TryParse(UnescapeForSszQuery(parts[2].Trim()), out column))
{
return(@""); // Query is not resolved
}
string valueOfSszQuery = csvDb.GetValue(fileName, key, column) ?? @"";
if (valueOfSszQuery == @"" && parts.Length == 4)
{
valueOfSszQuery = UnescapeForSszQuery(parts[3].Trim());
}
return(valueOfSszQuery);
}
return(@""); // Query is not resolved
}
public SszStatement(string condition, string value, int paramNum)
{
Condition = new SszExpression(condition);
Value = new SszExpression(value);
ParamNum = paramNum;
}
public SszStatement()
{
Condition = new SszExpression();
Value = new SszExpression();
}
