public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value is string)
{
return(CpuSet.Parse((string)value));
}
return(base.ConvertFrom(context, culture, value));
}
public static bool Parse(string set, out CpuSet cpus, bool tryParse)
{
cpus = default(CpuSet);
if (set == null)
{
if (tryParse)
{
return(false);
}
throw new ArgumentNullException(nameof(set));
}
if (set.Length == 0)
{
cpus = new CpuSet(Array.Empty <int>());
return(true);
}
int index = 0;
var cpuList = new List <int>();
do
{
int start;
if (!TryParseNumber(set, ref index, out start))
{
return(ParseFailed(tryParse, $"Can not parse number at {index}"));
}
if (index == set.Length)
{
cpuList.Add(start);
break;
}
else if (set[index] == ',')
{
cpuList.Add(start);
index++;
continue;
}
else if (set[index] == '-')
{
index++;
int end;
if (!TryParseNumber(set, ref index, out end))
{
return(ParseFailed(tryParse, $"Can not parse number at {index}"));
}
if (start > end)
{
return(ParseFailed(tryParse, "End of range is larger than start"));
}
for (int i = start; i <= end; i++)
{
cpuList.Add(i);
}
if (index == set.Length)
{
break;
}
else if (set[index] == ',')
{
index++;
continue;
}
else
{
return(ParseFailed(tryParse, $"Invalid character at {index}: '{set[index]}'"));
}
}
else
{
return(ParseFailed(tryParse, $"Invalid character at {index}: '{set[index]}'"));
}
} while (index != set.Length);
var cpuArray = cpuList.ToArray();
Array.Sort(cpuArray);
cpus = new CpuSet(cpuArray);
return(true);
}
public static bool TryParse(string set, out CpuSet cpus)
{
return(Parse(set, out cpus, tryParse: true));
}