//============================================================================
// NNumber::SetValue : Set the value.
//----------------------------------------------------------------------------
bool NNumber::SetValue(const NString &theValue)
{ NRange foundDot, foundE;
NIndex thePrecision;
int64_t valueInteger;
float64_t valueReal;
// Parse the value
//
// Some integers will also pass parsing as floats, however we coerce these
// back to integers when possible to allow us to use more tightly packed
// types for storage in the future.
if (sscanf(theValue.GetUTF8(), "%lf", &valueReal) == 1)
{
// Get the state we need
foundDot = theValue.Find(".");
foundE = theValue.Find("e", kNStringNoCase);
if (foundDot.IsEmpty() || !foundE.IsEmpty())
thePrecision = kDecimalsFloat64;
else
thePrecision = theValue.GetSize() - foundDot.GetNext();
// Cast the value
if (foundDot.IsEmpty() && foundE.IsEmpty() && valueReal >= kInt64Min && valueReal <= kInt64Max)
SetInt64((int64_t) valueReal);
else if (thePrecision <= kDecimalsFloat32 && valueReal >= kFloat32Min && valueReal <= kFloat32Max)
SetFloat32((float32_t) valueReal);
else
SetFloat64(valueReal);
return(true);
}
else if (sscanf(theValue.GetUTF8(), "%lld", &valueInteger) == 1 ||
sscanf(theValue.GetUTF8(), "%llx", &valueInteger) == 1 ||
sscanf(theValue.GetUTF8(), "0x%llx", &valueInteger) == 1 ||
sscanf(theValue.GetUTF8(), "0X%llx", &valueInteger) == 1)
{
SetInt64(valueInteger);
return(true);
}
return(false);
}
//============================================================================
// NFileUtilities::GetUniqueFile : Get a uniquely-named file.
//----------------------------------------------------------------------------
NFile NFileUtilities::GetUniqueFile(const NFile &theDirectory, const NString &fileName)
{ NString nameChild, nameFile, nameExt;
NRange extBreak;
NFile theFile;
NIndex n;
// Validate our parameters
NN_ASSERT(theDirectory.IsDirectory());
// Get the state we need
if (fileName.IsEmpty())
{
nameFile = "Temp";
nameExt = ".tmp";
}
else
{
extBreak = fileName.Find(".", kNStringBackwards);
if (extBreak.GetSize() == 1)
{
nameFile = fileName.GetLeft( extBreak.GetLocation());
nameExt = fileName.GetString(extBreak.GetLocation());
}
else
{
nameFile = fileName;
nameExt = "";
}
}
// Generate a unique name
n = 0;
while (n < 10000)
{
// Build the name
if (n == 0)
nameChild = nameFile;
else
nameChild.Format("%@ %ld", nameFile, n);
if (!nameExt.IsEmpty())
nameChild += nameExt;
// Check for the file
theFile = theDirectory.GetChild(nameChild);
if (!theFile.Exists())
return(theFile);
n++;
}
// Handle failure
NN_LOG("Unable to create a unique name");
theFile.Clear();
return(theFile);
}