public static Tuple <int, int> Parse(string indexStr)
{
var splitter = new Regex(@"([a-z]+)(\d+)", RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace);
Match m = splitter.Match(indexStr);
string xStr = m.Groups[1].Value;
string yStr = m.Groups[2].Value;
AlphaIndex x;
if (!AlphaIndex.TryParse(xStr, out x))
{
throw new ArgumentException(string.Format("The string '{0}' could not be parsed into x,y coordinates", indexStr));
}
int y;
if (!Int32.TryParse(yStr, out y))
{
throw new ArgumentException(string.Format("The string '{0}' could not be parsed into x,y coordinates", indexStr));
}
// - 1 because zero indexed api
return(new Tuple <int, int>(x.ToInt32() - 1, y - 1));
}
public static bool TryParse(int i, out AlphaIndex alphaIndex)
{
if (i < 0 || i > 64)
{
alphaIndex = null;
return(false);
}
alphaIndex = new AlphaIndex(i);
return(true);
}
public static string Generate(int x, int y)
{
AlphaIndex xindex;
// + 1 because zero indexed api
if (!AlphaIndex.TryParse(x + 1, out xindex))
{
throw new ArgumentException(string.Format("The int '{0}' could not be parsed into x,y coordinates", x));
}
// + 1 because zero indexed api
return(string.Format("{0}{1}", xindex, y + 1));
}
public static bool TryParse(string s, out AlphaIndex alphaIndex)
{
Char c;
if (!Char.TryParse(s, out c))
{
alphaIndex = null;
return(false);
}
int i = char.ToUpper(c) - 64;
alphaIndex = new AlphaIndex(i);
return(true);
}
