/// <summary>
/// Parsea el argumento de change.
/// </summary>
/// <param name="startIndex">Índice en el que
/// comienza el argumento.</param>
/// <returns>Resultados del parseo.</returns>
private ChangeParseResult ParseChangeArgument(int startIndex)
{
var header = startIndex;
var from = _args[++header];
var delimiter = _args[++header];
var to = _args[++header];
if (delimiter == "//")
{
var areValidNames = IsValidName(from) && IsValidName(to);
if (areValidNames)
{
var areValidFileNames =
_pathValidator.ValidateFileName(from).Valid&&
_pathValidator.ValidateFileName(to).Valid;
if (areValidFileNames)
{
var results = new ChangeParseResult
{
From = from,
To = to,
NextIndex = header
};
return(results);
}
}
}
throw new ArgumentParseException("Badformed --change argument. It should have this format: FROM -> TO, where FROM and TO must be valid filenames.");
}
/// <summary>
/// Parsea los argumentos de entrada y configura
/// una búsqueda acorde con ellos.
/// </summary>
/// <param name="args">Argumentos de entrada.</param>
/// <returns>Configuración de renombrado.</returns>
public RenamingConfiguration Parse()
{
int i = 0;
PathParseResult pathResult = ParsePathArgument(i);
i = pathResult.NextIndex;
ChangeParseResult changeResult = null;
ExcludeParseResult excludeResult = null;
for (; i < _args.Length; i++)
{
var arg = _args[i];
if (arg.StartsWith("--"))
{
var parsingArgument = arg
.Substring(2)
.ToLowerInvariant();
switch (parsingArgument)
{
case "change":
changeResult = ParseChangeArgument(i);
i = changeResult.NextIndex;
break;
case "exclude":
excludeResult = ParseExcludeArgument(i);
i = excludeResult.NextIndex;
break;
default:
throw new ArgumentParseException(string.Format("Argument \"{0}\" not recognized", arg));
}
}
else
{
throw new ArgumentParseException("Badformed argument list");
}
}
if (changeResult == null)
{
throw new ArgumentParseException("--change argument is required");
}
Search search;
if (excludeResult == null)
{
search = new Search(pathResult.Path);
}
else
{
search = new Search(pathResult.Path, excludeResult.Exclude);
}
return(new RenamingConfiguration
{
PreparedSearch = search,
From = changeResult.From,
To = changeResult.To
});
}
