/// <summary>Constructor for instantiation when EDI data string is included</summary>
public Interchange(string edi)
{
FormattingOptions = InterchangeControlHeader.GetFormattingOptionsFromHeading(edi);
if (edi.Length > 3 && edi.Substring(0, 3).Equals(InterchangeControlHeader.ElementName))
{
Parse(edi, FormattingOptions);
}
else
{
throw new ArgumentException("EDI is not a valid interchange");
}
}
/// <summary>
/// Initialization method for when EDI data string is known
/// and the segment seperator if the interchange is known
/// </summary>
private void Parse(string value, FormattingOptions options)
{
var segmentStringValueCollection = value.Split(options.SegmentTerminator.AsSplitDelimiter(), StringSplitOptions.None);
var functionalGroupStringArray = new List <System.Text.StringBuilder>();
foreach (var segment in segmentStringValueCollection)
{
var segmentStringInstance = segment;
segmentStringInstance = RemoveCharacterFromString(segmentStringInstance, "\r", options);
segmentStringInstance = RemoveCharacterFromString(segmentStringInstance, "\n", options);
if (segmentStringInstance.Length < 3)
{
continue;
}
switch (segmentStringInstance.Substring(0, 3))
{
case InterchangeControlHeader.ElementName:
Header = new InterchangeControlHeader(segmentStringInstance, options);
break;
case InterchangeControlTrailer.ElementName:
Trailer = new InterchangeControlTrailer(segmentStringInstance, options);
break;
default:
if (segmentStringInstance.Substring(0, 2).Equals(FunctionalGroupHeader.ElementName))
{
functionalGroupStringArray.Add(new System.Text.StringBuilder());
}
functionalGroupStringArray[functionalGroupStringArray.Count - 1].Append(segmentStringInstance);
functionalGroupStringArray[functionalGroupStringArray.Count - 1].Append(options.SegmentTerminator);
break;
}
}
foreach (var functionalGroupString in functionalGroupStringArray)
{
var fg = new FunctionalGroup.FunctionalGroup(functionalGroupString.ToString(), FormattingOptions);
FunctionalGroups.Add(fg);
}
FunctionalGroups.TrimExcess();
}