// ==========================================================
public static string GetSubFieldValue
(
this SubField subField
)
{
return(subField == null
? null
: subField.Value);
}
public static string GetFirstSubFieldValue
(
this RecordField field,
char code
)
{
SubField result = field.GetFirstSubField(code);
return(ReferenceEquals(result, null)
? null
: result.Value);
}
// ==========================================================
public static RecordField AddSubField
(
this RecordField field,
char code,
string value
)
{
SubField subField = new SubField {
Code = code, Value = value
};
field.SubFields.Add(subField);
return(field);
}
public static SubField[] GetSubField
(
this SubFieldCollection subFields,
Action <SubField> action
)
{
int count = subFields.Length;
SubField[] result = new SubField[count];
for (int i = 0; i < count; i++)
{
SubField item = subFields[i];
result[i] = item;
action(item);
}
return(result);
}
public static RecordField SetSubField
(
this RecordField field,
char code,
string value
)
{
SubField subField = field.SubFields
.Cast <SubField>()
.FirstOrDefault(sub => Utility.SameChar(code, sub.Code));
if (ReferenceEquals(subField, null))
{
subField = new SubField {
Code = code
};
field.SubFields.Add(subField);
}
subField.Value = value;
return(field);
}
internal static RecordField Parse(string line)
{
StringReader reader = new StringReader(line);
RecordField result
= new RecordField(Utility.ReadTo(reader, '#'));
result.Value = Utility.ReadTo(reader, '^');
while (true)
{
int next = reader.Read();
if (next < 0)
{
break;
}
char code = char.ToLower((char)next);
string value = Utility.ReadTo(reader, '^');
SubField subField = new SubField();
subField.Code = code;
subField.Value = value;
result.SubFields.Add(subField);
}
return(result);
}
public void Remove(SubField item)
{
_list.Remove(item);
}
public void Add(SubField item)
{
_list.Add(item);
}