public bool Compare(CSVData csvData)
{
return(DataHeaders() == csvData.DataHeaders() && DataValues() == csvData.DataValues());
}
public void LoadFileLines(String csvFileFullPath, IList <string> columnNames, String regExLineIdentifierPattern, String keyName)
{
FileStream fs = System.IO.File.OpenRead(csvFileFullPath);
using (fs)
{
StringBuilder columnNameValue = new StringBuilder();
StringBuilder currentLineBuffer = new StringBuilder();
StreamReader sr = new StreamReader(fs);
int lineIdx = 0;
using (sr)
{
IDictionary <String, int> columnNameIndexes = new Dictionary <String, int>();
while (!sr.EndOfStream)
{
String nextLine = sr.ReadLine();
if (lineIdx == 0)
{
String[] columns = nextLine.Split(',', StringSplitOptions.TrimEntries);
int columnNameIdx = 0;
foreach (String name in columns)
{
if (columnNames.Count(n => n.ToLower() == name.ToLower()) > 0)
{
columnNameIndexes.Add(name, columnNameIdx);
}
columnNameIdx++;
}
}
else
{
MatchCollection matches = Regex.Matches(nextLine, regExLineIdentifierPattern, RegexOptions.IgnoreCase);
if (matches.Count == 1)
{
CSVData columnCsvData = null;
foreach (String columnName in columnNameIndexes.Keys)
{
int columnNameIdx = columnNameIndexes[columnName];
if (currentLineBuffer.Length > 0)
{
String currentLine = currentLineBuffer.ToString();
bool notInsideDoubleQuotes = false;
bool notInsideSingleQuotes = false;
int columnIdx = 0;
foreach (Char c in currentLine.ToCharArray())
{
if (c == AComma && (notInsideDoubleQuotes == false && notInsideSingleQuotes == false))
{
columnIdx++;
}
else if (c == ADoubleQuote && !notInsideSingleQuotes)
{
notInsideDoubleQuotes = !notInsideDoubleQuotes;
}
else if (c == ASingleQuote && !notInsideDoubleQuotes)
{
notInsideSingleQuotes = !notInsideSingleQuotes;
}
if (columnIdx == columnNameIdx && c != AComma)
{
columnNameValue.Append(c);
}
else if (columnIdx > columnNameIdx)
{
break;
}
}
String value = columnNameValue.ToString();
if (String.IsNullOrWhiteSpace(value) == false)
{
if (columnCsvData == null)
{
columnCsvData = new CSVData(keyName);
}
columnCsvData.Add(columnName, value);
columnNameValue.Clear();
}
currentLineBuffer.Clear();
}
currentLineBuffer.Append(nextLine);
}
if (columnCsvData != null)
{
CsvDataList.Add(columnCsvData);
}
}
else if (currentLineBuffer.Length > 0)
{
currentLineBuffer.Append(nextLine);
}
}
lineIdx++;
}
}
}
}
