// Reads the line.
public string ReadLine(QAManager qa)
{
bool first = true;
bool substituted = false;
if (cancelMode)
{
return(CancelCode);
}
string answer;
string errorline = string.Empty;
do
{
if (!first)
{
WriteLine(errorline);
}
first = false;
answer = Console.ReadLine();
// Cancel
if (ShowCancelText && (answer.ToUpper() == CancelCode))
{
cancelMode = true;
break;
}
// Default substitution
if (string.IsNullOrEmpty(answer) && answer != qa.DefaultValue)
{
answer = qa.DefaultValue;
substituted = true;
}
// Valid?
errorline = EMPTY;
if (qa.IsInputRequired == true && string.IsNullOrEmpty(answer))
{
errorline = "A value is required.";
}
else if (qa.AnswerValues != null &&
answer != qa.DefaultValue &&
!qa.AnswerValues.Contains(answer.ToUpper()))
{
errorline = string.Format("Value '{0}' is not supported.", answer);
}
} while (!(errorline == EMPTY));
if (substituted)
{
WriteLine(string.Format("[{0}]", answer));
}
return(answer);
}
// Asks the value.
public string Ask(QAManager qa)
{
if (CancelMode)
{
return(CancelCode);
}
string answer = string.Empty;
WriteLine(string.Format("{0}", qa.Question));
answer = ReadLine(qa);
if (CancelMode)
{
return(string.Empty);
}
return((qa.IsAnswerUC) ? answer.ToUpper() : answer);
}
// Asks the valid path.
public string AskDir(QAManager qa)
{
if (cancelMode)
{
return(CancelCode);
}
string dir = string.Empty;
do
{
WriteLine(qa.Question);
dir = ReadLine(qa);
if (CancelMode)
{
return(string.Empty);
}
if (dir.IndexOfAny(Path.GetInvalidPathChars()) != -1)
{
error = true;
WriteLine(string.Format("'{0}' is not a valid directory name.", dir));
}
if (!error && string.IsNullOrEmpty(dir))
{
dir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase).Replace("file:", "");
string answer = Ask(new QAManager(Enums.QAType.YN, dir, "Directory"));
if (CancelMode)
{
return(string.Empty);
}
if (answer == Enums.YN.N.ToString())
{
dir = string.Empty;
}
}
if (!Directory.Exists(dir))
{
error = true;
WriteLine(string.Format("Directory '{0}' does not exist.", dir));
}
} while (error);
return((error) ? string.Empty : dir);
}
// Asks the valid filename (incl. path).
public string AskFileName(QAManager qa, string dir)
{
if (CancelMode)
{
return(CancelCode);
}
string filename;
do
{
error = false;
WriteLine(qa.Question);
filename = ReadLine(qa);
if (CancelMode)
{
return(string.Empty);
}
if (string.IsNullOrEmpty(filename) || filename.IndexOfAny(Path.GetInvalidFileNameChars()) != -1)
{
error = true;
WriteLine(string.Format("'{0}' is not a valid file name.", filename));
}
string ext = Path.GetExtension(filename);
if (string.IsNullOrEmpty(ext))
{
filename = string.Format("{0}.txt", filename);
}
string path = Path.Combine(dir, filename);
if (qa.IsInputRequired && !File.Exists(path))
{
error = true;
WriteLine(string.Format("Path '{0}' does not exist.", path));
}
} while (error);
return((error) ? string.Empty : filename);
}
