private static EastAsianWidthRange ParseRange(string line)
{
var values = line.Substring(0, line.IndexOf('#')).Trim().Split(";".ToCharArray());
var rangeSegments = values[0].Trim();
var kindSegment = values[1].Trim();
EastAsianWidthKind kind = kindSegment switch
{
"A" => EastAsianWidthKind.Ambiguous,
"F" => EastAsianWidthKind.FullWidth,
"H" => EastAsianWidthKind.HalfWidth,
"Na" => EastAsianWidthKind.Narrow,
"W" => EastAsianWidthKind.Wide,
"N" => EastAsianWidthKind.Neutral,
_ => throw new NotSupportedException($"Not supported kind:{kindSegment}")
};
var index = rangeSegments.IndexOf("..", StringComparison.Ordinal);
int start;
int end;
if (index < 0)
{
start = Convert.ToInt32(rangeSegments, 16);
end = start;
}
else
{
start = Convert.ToInt32(rangeSegments.Substring(0, index), 16);
end = Convert.ToInt32(rangeSegments.Substring(index + 2, rangeSegments.Length - index - 2), 16);
}
return(new EastAsianWidthRange(start, end, kind));
}
}
/// <summary>
/// Resolve instance.
/// </summary>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="kind"></param>
public EastAsianWidthRange(int start, int end, EastAsianWidthKind kind)
{
Start = start;
End = end;
Kind = kind;
}
