/// <summary>
/// GetComponent - get the field component list for a given field
/// use the HL7 encoding character for components
/// split the field string based on the component encoding character and return the value
/// at the index
/// if no components are found return orginal string
/// </summary>
/// <param name="msg">HL7 message</param>
/// <returns></returns>
public string GetComponent(HL7Encoding _encode, string msg, int idx = -1)
{
string sStr = "";
idx--;
if (string.IsNullOrEmpty(msg) || idx < 0)
{
return(msg); // bad
}
string[] saStr = msg.Split(_encode.Encoding[(int)encodingCharacters.ComponentSeparator]);
// if (idx <= saStr.Count())
// {
try
{
sStr = saStr.GetValue(idx).ToString();
}
catch (IndexOutOfRangeException)
{
sStr = string.Empty; // not found
}
// }
// else
// {
// return msg; // not found
// }
return(sStr);
}
/// <summary>
/// getElement - get the HL7 element for the given message
/// </summary>
/// <param name="msg">HL7 message</param>
/// <returns></returns>
public string GetField(HL7Encoding _encode, string msg, int idx = -1)
{
string sStr = "";
if (string.IsNullOrEmpty(msg) || idx == -1)
{
return(null); // bad
}
string[] saStr = msg.Split(_encode.FieldSeparator);
if (idx <= saStr.Count())
{
try
{
sStr = saStr.GetValue(idx).ToString();
}
catch (IndexOutOfRangeException)
{
sStr = string.Empty;
}
}
else
{
return(msg); // not found
}
return(sStr);
}
/// <summary>
/// getElement - return the element for the message segment
/// </summary>
/// <param name="msg">HL7 message</param>
/// <param name="idx">Index to the element within the message</param>
/// <returns>object. can be string, datetime, int</returns>
public object GetElement(HL7Encoding _encode, string msg, int idx = -1)
{
string sStr = "";
if (string.IsNullOrEmpty(msg) || idx == -1)
{
return(null); // bad
}
string[] saStr = msg.Split(_encode.FieldSeparator);
if (idx >= saStr.Length)
{
// error
return(null);
}
try
{
sStr = saStr.GetValue(idx).ToString();
}
catch (IndexOutOfRangeException)
{
sStr = string.Empty;
}
return(sStr);
}
/// <summary>
/// getField - Get the HL7 value for the given field based on field value
/// I.E. field = 3.1 get the value from field index 3 subvalue 1
/// I.E. field = 5.3 get the value from field 5 subvalue 3
/// </summary>
/// <param name="msg">segment to parse</param>
/// <param name="encoding">HL7 encoding characters from the MSH segment use to obtain the field separator character</param>
/// <param name="field">field index Major.Subfield</param>
/// <returns>string</returns>If null failed to retreive the field
public string GetField(HL7Encoding _encode, string msg, double element = 0.0)
{
if (string.IsNullOrEmpty(msg) || _encode.Encoding[(int)encodingCharacters.ComponentSeparator] <= 32 || element == 0.0)
{
return(null);
}
string sStr = "";
// lets split the value to field.subField
// I.E. 5.3 or 5.3.1 or 5.4.3.1
// first index is Field, other nunbers are subfield
string[] saField = string.Format("{0}", element).Split('.');
int[] fldIdx = new int[10];
for (int xx = 0; xx < saField.Length; xx++)
{
fldIdx[xx] = int.Parse(saField[xx]);
}
// break string into fields
string[] saStr = msg.Split(_encode.FieldSeparator);
if (element <= saStr.Count())
{
sStr = saStr.GetValue(fldIdx[0]).ToString();
if (fldIdx[1] != 0)
{
// now get the subfield
string[] subFld = sStr.Split(_encode.Encoding[(int)encodingCharacters.ComponentSeparator]);
sStr = subFld[fldIdx[1] - 1];
}
}
else
{
return(null); // bad
}
return(sStr);
}
public HL7Header(MSH msh, List <NTE> notes, HL7Encoding _encoding)
{
MSHSegment = msh;
NTESegments = notes;
HL7Encoding = _encoding;
}
