internal static string InterpreteLine(OCRLine line)
{
try
{
IEnumerable <string> chars = line.GetChars().Select(OCRCharInterpreter.InterpreteChar);
return(chars.Aggregate((a, b) => a + b));
}
catch (FormatException)
{
return("invalid line");
}
}
/// <summary>
/// Takes a set of lines and groups them into <see cref="OCRLine"/> objects.
/// Raised visiblility of internal for unit testing purposes.
/// </summary>
/// <param name="fileLines">single lines, content of a file</param>
/// <returns>OCR lines</returns>
internal static OCRLine[] CreateOcrLines(IEnumerable <string> fileLines)
{
int length = fileLines.Count();
if ((length + 1) % 4 != 0)
{
throw new FormatException();
}
var lines = new List <OCRLine>(length / 3);
while (fileLines.Any())
{
var line = new OCRLine(fileLines.Take(3));
lines.Add(line);
fileLines = fileLines.Skip(4);
}
return(lines.ToArray());
}