private static SplitTypeCount CountChars(string line)
{
SplitTypeCount ret = new SplitTypeCount();
// determine CVS-Dialect
foreach (char c in line)
{
if (c == '\t')
{
ret.tabs += 1;
}
else if (c == ',')
{
ret.kommas += 1;
}
else if (c == ';')
{
ret.semikolons += 1;
}
else if (c == ' ')
{
ret.spaces += 1;
}
}
return(ret);
}
private void EvaluteHeader(string line)
{
headerLine = line;
SplitTypeCount c = headerCount = CountChars(line);
if (QuoteChar != QuoteChar.None)
{
c.spaces = 0;
}
if (c.tabs >= c.kommas && c.tabs >= c.semikolons && c.tabs >= c.spaces)
{
UsedSplitType = SplitType.Tab;
}
else if (c.kommas >= c.tabs && c.kommas >= c.semikolons && c.kommas >= c.spaces)
{
UsedSplitType = SplitType.Komma;
}
else if (c.semikolons >= c.spaces)
{
UsedSplitType = SplitType.Semikolon;
}
else if (c.spaces > 0)
{
UsedSplitType = SplitType.Space;
}
else
{
throw new IOException("unable to determine CSV-dialect");
}
}
public void Feed(string line, int lineNo)
{
if (lineNo == 0)
{
EvaluteHeader(line);
return;
}
if (lineNo == 1)
{
//int curColCount = splitter.Split(line).Length;
if (splitType == SplitType.Space)
{
// Resurrect on wrong counted spaces in header
SplitTypeCount c = CountChars(line);
if (c.spaces == 0)
{
c = headerCount;
if (c.tabs >= c.kommas && c.tabs >= c.semikolons)
{
UsedSplitType = SplitType.Tab;
}
else if (c.kommas >= c.tabs && c.kommas >= c.semikolons)
{
UsedSplitType = SplitType.Komma;
}
else if (c.semikolons > 0)
{
UsedSplitType = SplitType.Semikolon;
}
}
}
//// allow wired files with space delimiter on all but first line,
//// there tab.
//if (splitter.Split(line).Length <= 1)
//{
// splitType = SplitType.TabAndSpace;
// splitter = new Regex("[ \t]+");
//}
}
}
private void EvaluteHeader(string line)
{
headerLine = line;
SplitTypeCount c = headerCount = CountChars(line);
if (QuoteChar != QuoteChar.None)
c.spaces = 0;
if (c.tabs >= c.kommas && c.tabs >= c.semikolons && c.tabs >= c.spaces)
UsedSplitType = SplitType.Tab;
else if (c.kommas >= c.tabs && c.kommas >= c.semikolons && c.kommas >= c.spaces)
UsedSplitType = SplitType.Komma;
else if (c.semikolons >= c.spaces)
UsedSplitType = SplitType.Semikolon;
else if (c.spaces > 0)
UsedSplitType = SplitType.Space;
else
throw new IOException("unable to determine CSV-dialect");
}
private static SplitTypeCount CountChars(string line)
{
SplitTypeCount ret = new SplitTypeCount();
// determine CVS-Dialect
foreach (char c in line)
{
if (c == '\t') ret.tabs += 1;
else if (c == ',') ret.kommas += 1;
else if (c == ';') ret.semikolons += 1;
else if (c == ' ') ret.spaces += 1;
}
return ret;
}
