/// <summary>
/// Parsea los argumentos introducidos por el usuario.
/// </summary>
/// <param name="args">Argumentos introducidos.</param>
/// <returns>Búsqueda configurada acorde con los
/// parámetros.</returns>
private static Search ParseArguments(string[] args)
{
if (args.Length != 3 && args.Length != 4)
{
throw new ArgumentException("Arguments not specified correctly.");
}
var path = args[0];
var pathValidator = new PathValidator();
var pathResult = pathValidator.ValidatePath(path, true);
if (!pathResult.Valid)
{
throw new ArgumentException(pathResult.Reason);
}
var from = args[1];
var fromResult = pathValidator.ValidateFileName(from);
if (!fromResult.Valid)
{
throw new ArgumentException(pathResult.Reason);
}
var to = args[2];
var toResult = pathValidator.ValidateFileName(to);
if (!toResult.Valid)
{
throw new ArgumentException(pathResult.Reason);
}
Search search = null;
if (args.Length == 4)
{
var exclusions = args[3].Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
var exclusionsTrimmed = new List <string>();
foreach (var exclusion in exclusions)
{
var exclusionTrimmed = exclusion.Trim();
var exclusionResult = pathValidator.ValidatePath(exclusionTrimmed, false);
if (!exclusionResult.Valid)
{
throw new ArgumentException(string.Format("Exclusion \"{0}\" is not a valid filename.", exclusion));
}
else
{
exclusionsTrimmed.Add(exclusionTrimmed);
}
}
search = new Search(path, exclusionsTrimmed);
}
else
{
search = new Search(path);
}
return(search);
}
/// <summary>
/// Crea una nueva instancia de ArgumentParser.
/// </summary>
/// <param name="args">Argumentos a parsear.</param>
public ArgumentParser(string[] args)
{
_args = args;
_pathValidator = new PathValidator();
}