internal static Result <BaseSegmentIndex> GetSegmentIndex(string nameIn)
{
string?segIndex = null, colIndexStr = null;
if (nameIn.Contains('-'))
{
List <string> segmentParts = EncodingHelper.Split(nameIn, '-');
if (segmentParts.Count != 2)
{
return(ErrorReturn <BaseSegmentIndex>($"Expected only one dash in index similiar to x-y or x:y-z in the segmentName position found {nameIn} instead"));
}
segIndex = segmentParts[1];
}
List <string> multiSegmentParts = nameIn.Split(':', '-').ToList();
if (nameIn.Contains(':'))
{
if (nameIn.Contains('-') && multiSegmentParts.Count != 3)
{
return(ErrorReturn <BaseSegmentIndex>($"Expected exactly 3 values in the format x:y-z in the segementname position, found {nameIn} instead"));
}
if (!nameIn.Contains('-') && multiSegmentParts.Count != 2)
{
return(ErrorReturn <BaseSegmentIndex>($"Expected exactly 2 values in the format x:y in the segementname position, found {nameIn} instead"));
}
colIndexStr = multiSegmentParts[1];
}
int?colIndex = null;
if (!string.IsNullOrWhiteSpace(colIndexStr))
{
if (int.TryParse(colIndexStr, out int colIndexInt))
{
colIndex = colIndexInt;
}
else
{
return(ErrorReturn <BaseSegmentIndex>($"Could not parse segment collection index as int value {colIndexStr} from {nameIn}"));
}
}
if (int.TryParse(multiSegmentParts[0], out int segIntIndex))
{
if (segIndex != null)
{
return(ErrorReturn <BaseSegmentIndex>($"attempted to use a segment indexer ({segIndex}), with a segment ordinal ({segIntIndex}), you can't use a segment ordinal with a segment index"));
}
if (colIndexStr != null)
{
return(ErrorReturn <BaseSegmentIndex>($"attempted to use a multisegment ordinal ({segIndex}), with a segment ordinal ({segIntIndex}), you can't use a multisegment ordinal with a segment index"));
}
return(new Result <BaseSegmentIndex>(new SegmentOrdinalIndex(segIntIndex)));
}
if (segIndex != null)
{
if (int.TryParse(segIndex, out int index))
{
return(new Result <BaseSegmentIndex>(new SegmentNameAndOrdinalIndex(multiSegmentParts[0], index, colIndex)));
}
else
{
return(new Result <BaseSegmentIndex>(new SegmentNameAndIdIndex(multiSegmentParts[0], segIndex, colIndex)));
}
}
return(new Result <BaseSegmentIndex>(new SegmentNamedIndex(multiSegmentParts[0], colIndex)));
}
