public static PictureDescription ReadFromFile(string filename)
{
using (var reader = File.OpenText(filename))
{
string descLine = reader.ReadLine();
var match = Regex.Match(descLine, "^([0-9]+) ([0-9]+)$");
int nRows = int.Parse(match.Groups[1].Value);
int nCols = int.Parse(match.Groups[2].Value);
var desc = new PictureDescription(nRows, nCols);
for (int i = 0; i < nRows; ++i)
{
var line = reader.ReadLine();
for (int j = 0; j < nCols; ++j)
{
char ch = line[j];
if (ch == '.')
{
// Do nothing
} else if (ch == '#')
{
desc.Fill(j, i);
} else
{
throw new NotImplementedException();
}
}
}
return desc;
}
}
