public static LongRange Parse(string value)
{
var sary = value.Split(new[] { "-" }, StringSplitOptions.None).Select(s => s.Trim()).ToArray();
if (sary.Length == 1)
{
// double じゃない？
return(LongRange.FromPivotValue(long.Parse(sary[0])));
}
else if (sary.Length == 2)
{
// 二つある
if (String.IsNullOrEmpty(sary[0]))
{
// To
return(LongRange.FromToValue(long.Parse(sary[1])));
}
else if (String.IsNullOrEmpty(sary[1]))
{
// From
return(LongRange.FromFromValue(long.Parse(sary[0])));
}
else
{
// Between
return(LongRange.FromBetweenValues(long.Parse(sary[0]), long.Parse(sary[1])));
}
}
else
{
throw new ArgumentException("引数が不正です。-が多すぎるか、または無効な文字列です。");
}
}
