public static Range CompileRange(string value)
{
Range range = new Range();
range._value = value;
if (string.IsNullOrEmpty(value))
{
range.Type = RangeType.Bytes;
range.Start = -1;
range.End = -1;
}
else
{
var p = value.Split("=".ToCharArray());
var bytes = p[1].Split("-".ToCharArray());
range.Type = (RangeType)Enum.Parse(typeof(RangeType), p[0], true);
range.Start = long.Parse(bytes[0]);
if (string.IsNullOrEmpty(bytes[1]))
range.End = -1;
else
range.End = long.Parse(bytes[1]);
}
return range;
}
public static Range[] Parse(string range)
{
string[] buf = range.Split("=".ToCharArray(), 2, StringSplitOptions.None);
List<Range> res = new List<Range>();
string unit = buf[0];
if (string.IsNullOrEmpty(buf[1]))
{
res.Add(new Range() { Unit = unit });
return res.ToArray();
}
buf = buf[1].Split(",".ToCharArray());
foreach (var sr in buf)
{
Range r = new Range();
r.Unit = unit;
var rbuf = sr.Split("-".ToCharArray(), 2, StringSplitOptions.None);
if (string.IsNullOrEmpty(rbuf[0]))
r.From = null;
else
r.From = long.Parse(rbuf[0]);
if (string.IsNullOrEmpty(rbuf[1]))
r.To = null;
else r.To = long.Parse(rbuf[1]);
res.Add(r);
}
return res.ToArray();
}
