internal static c_MarcVariableDataField m_GetVariableDataFieldFromFast(string v_marcBreaker)
{
if (v_marcBreaker.m_IsEmpty())
{
return(null);
}
try
{
var v_fast = v_marcBreaker.Trim(new[] { '=', ' ' });
if (!int.TryParse(v_fast.Substring(0, 3), out int v_fieldNum))
{
return(null);
}
var v_field = new c_MarcVariableDataField(v_fieldNum);
// parse auth field:
var v_parts = v_fast.Substring(3).Split(new[] { "$" }, StringSplitOptions.None).ToArray();
// indicators:
var v_indicators = v_parts[0].Substring(v_parts[0].Length - 2);
v_field.v_Indicator1 = v_indicators[0] == ' ' ? " " : v_indicators[0].ToString();
v_field.v_Indicator2 = v_indicators[1] == ' ' ? " " : v_indicators[1].ToString();
// separate subfields (don't need to know the id):
foreach (var v_subfieldStr in v_parts.Skip(1))
{
var v_subfield = new c_MarcSubfield(v_subfieldStr[0].ToString()); // subfield id e.g. a, z, etc
v_subfield.v_Data = v_subfieldStr.Substring(1);
v_field.v_SubfieldList.Add(v_subfield);
}
return(v_field);
}
catch
{
return(null);
}
}
// Fields 010-999
internal static c_MarcVariableDataField[] m_GetVariableDataFieldsFromAuthRecord(string v_authRecord, int v_targetFieldId)
{
var v_fieldList = new List <c_MarcVariableDataField>();
if (v_authRecord.m_IsEmpty())
{
return(null);
}
try
{
var v_lines = v_authRecord.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries).Select(v_x => v_x.Trim(new[] { ' ', '\t', '=' })).ToArray();
for (var v_i = 0; v_i < v_lines.Length; v_i++)
{
if (!int.TryParse(v_lines[v_i].Substring(0, 3), out int v_lineFieldId))
{
continue;
}
if (v_targetFieldId != v_lineFieldId)
{
continue;
}
// remove part of line that follows an 'e.g.':
var v_line = v_lines[v_i].Replace("e.g. |a", "e.g. /a");
//var v_line = v_lines[v_i].Contains("e.g.") ? v_lines[v_i].Substring(0, v_lines[v_i].IndexOf("e.g.")) : v_lines[v_i];
var v_field = new c_MarcVariableDataField(v_targetFieldId);
//var v_test1 = Regex.Match(line, "ǂ[a-z0-9]");
//var v_test2 = Regex.Match(line, @"\|[a-z0-9]");
//var v_test3 = Regex.Match(line, @"\$[a-z0-9]");
var v_subfieldSymbol = Regex.IsMatch(v_line, "ǂ[a-z0-9]") ? "ǂ" : Regex.IsMatch(v_line, @"\|[a-z0-9]") ? "|" : Regex.IsMatch(v_line, @"\$[a-z0-9]") ? "$" : null;
if (v_subfieldSymbol == null)
{
throw new Exception("Subfield symbol not detected");
}
var v_parts = Enumerable.ToArray(v_line.Substring(3).Split(new[] { v_subfieldSymbol }, StringSplitOptions.None));
var v_indicators = v_parts[0].Replace("\t", "");
for (var v_j = 0; v_j < 3; v_j++)
{
if (v_indicators.Length == 2)
{
break;
}
if (v_indicators.StartsWith(" "))
{
v_indicators = v_indicators.Substring(1);
}
if (v_indicators.EndsWith(" "))
{
v_indicators = v_indicators.Substring(0, v_indicators.Length - 1);
}
}
if (v_indicators.Length != 2)
{
throw new Exception("Indicators not detected");
}
v_field.v_Indicator1 = v_indicators[0].ToString();
v_field.v_Indicator2 = v_indicators[1].ToString();
foreach (var v_part in v_parts.Skip(1))
{
var v_subfieldId = v_part.Trim().Substring(0, 1);
var v_subfield = new c_MarcSubfield(v_subfieldId);
v_subfield.v_Data = v_part.Trim().Substring(1).Trim();
v_field.v_SubfieldList.Add(v_subfield);
}
v_fieldList.Add(v_field);
}
return(v_fieldList.Count > 0 ? v_fieldList.ToArray() : null);
}
catch
{
return(null);
}
}
