private IDev2Tokenizer CreateSplitPattern(ref string stringToSplit, IEnumerable <DataSplitDTO> args, IDataListCompiler compiler, Guid dlId, out ErrorResultTO errors)
{
Dev2TokenizerBuilder dtb = new Dev2TokenizerBuilder {
ToTokenize = stringToSplit, ReverseOrder = ReverseOrder
};
errors = new ErrorResultTO();
foreach (DataSplitDTO t in args)
{
var fieldName = t.OutputVariable;
t.At = t.At ?? "";
if (!string.IsNullOrEmpty(_datalistString))
{
var isValidExpr = new IsValidExpressionRule(() => fieldName, _datalistString)
{
LabelText = fieldName
};
var errorInfo = isValidExpr.Check();
if (errorInfo != null)
{
errors.AddError(errorInfo.Message);
continue;
}
}
IBinaryDataListEntry entry;
string error;
switch (t.SplitType)
{
case "Index":
try
{
entry = compiler.Evaluate(dlId, enActionType.User, t.At, false, out errors);
string index = DataListUtil.GetValueAtIndex(entry, 1, out error);
int indexNum = Convert.ToInt32(index);
if (indexNum > 0)
{
dtb.AddIndexOp(indexNum);
}
}
catch (Exception ex)
{
errors.AddError(ex.Message);
}
break;
case "End":
dtb.AddEoFOp();
break;
case "Space":
dtb.AddTokenOp(" ", t.Include);
break;
case "Tab":
dtb.AddTokenOp("\t", t.Include);
break;
case "New Line":
if (stringToSplit.Contains("\r\n"))
{
dtb.AddTokenOp("\r\n", t.Include);
}
else if (stringToSplit.Contains("\n"))
{
dtb.AddTokenOp("\n", t.Include);
}
else if (stringToSplit.Contains("\r"))
{
dtb.AddTokenOp("\r", t.Include);
}
break;
case "Chars":
if (!string.IsNullOrEmpty(t.At))
{
entry = compiler.Evaluate(dlId, enActionType.User, t.At, false, out errors);
string val = DataListUtil.GetValueAtIndex(entry, 1, out error);
string escape = t.EscapeChar;
if (!String.IsNullOrEmpty(escape))
{
entry = compiler.Evaluate(dlId, enActionType.User, t.EscapeChar, false, out errors);
escape = DataListUtil.GetValueAtIndex(entry, 1, out error);
}
dtb.AddTokenOp(val, t.Include, escape);
}
break;
}
_indexCounter++;
}
return(string.IsNullOrEmpty(dtb.ToTokenize) || errors.HasErrors() ? null : dtb.Generate());
}