public void TryReadDoubleFormatSubstring()
{
int pos = 0;
PaddedFormat actual = DoubleFormatCache.GetOrCreate("e5", ref pos);
pos = 0;
actual = DoubleFormatCache.GetOrCreate("#0.00#", ref pos);
var sw = Stopwatch.StartNew();
var n = 1000000;
for (int i = 0; i < n; i++)
{
pos = 0;
DoubleFormatCache.GetOrCreate("#0.00#", ref pos);
}
sw.Stop();
Console.WriteLine($"// {DateTime.Today.ToShortDateString()}| TryReadDoubleFormat(\"e5\") {n:N0} times {sw.ElapsedMilliseconds} ms");
sw.Restart();
for (int i = 0; i < n; i++)
{
pos = 0;
actual = DoubleFormatCache.GetOrCreate("#0.00#", ref pos);
}
sw.Stop();
Console.WriteLine($"// {DateTime.Today.ToShortDateString()}| TryReadDoubleFormat(\"#0.00#\") {n:N0} times {sw.ElapsedMilliseconds} ms");
}
public void TryRead(string text, int pos, string expected, int expectedPos)
{
PaddedFormat actual = DoubleFormatCache.GetOrCreate(text, ref pos);
Assert.AreEqual(expected, actual.Format);
Assert.AreEqual(expectedPos, pos);
}
internal static PaddedFormat GetOrCreate(string format, ref int pos)
{
_ = WhiteSpaceReader.TryRead(format, ref pos, out var prePadding);
if (DoubleFormatReader.TryRead(format, ref pos, out var valueFormat))
{
_ = WhiteSpaceReader.TryRead(format, ref pos, out var postPadding);
return(new PaddedFormat(prePadding, valueFormat, postPadding));
}
return(PaddedFormat.CreateUnknown(prePadding, format));
}
public void TryReadError(string text, int pos, string expectedFormatted)
{
PaddedFormat actual = DoubleFormatCache.GetOrCreate(text, ref pos);
Assert.AreEqual(text, actual.Format);
Assert.AreEqual(0, pos);
string formatted = null;
try
{
formatted = 1.2.ToString(text);
}
catch
{
}
Assert.AreEqual(expectedFormatted, formatted);
}
public void TryReadError(string text, int pos, string expectedFormatted)
{
PaddedFormat actual = DoubleFormatCache.GetOrCreate(text, ref pos);
Assert.AreEqual(text, actual.Format);
Assert.AreEqual(0, pos);
string formatted = null;
try
{
formatted = 1.2.ToString(text);
}
//// ReSharper disable once EmptyGeneralCatchClause dunno what this does.
catch
{
}
Assert.AreEqual(expectedFormatted, formatted);
}
