static bool DetermineFileExistence(string nextPath, FileDetectMethod fn, string methodName)
{
bool foundIt = false;
try
{
foundIt = fn(nextPath);
}
catch (System.ArgumentException)
{
Debug.WriteLine($"Detected an ArgumentException on {nextPath.Length} characters when calling {methodName}");
}
catch (PathTooLongException)
{
Debug.WriteLine($"Detected a PathTooLongException on {nextPath.Length} characters when calling {methodName}");
}
return(foundIt);
}
static void Main(string[] args)
{
// overall goal: if path to txt file was passed, then open it and iterate through the contents, commenting on file existence,
// else echo the syntax of the app
bool showSyntax = false;
List <string> lstChars = new List <string>();
string nonBlockSpace = new string(new char[] { (char)0xfffd });
if (((args == null) || (args.Length == 0)) || (args[0] == @"\?"))
{
showSyntax = true;
}
else
{
foreach (string fp in args)
{
try
{
if (File.Exists(fp))
{
FileInfo fi = new FileInfo(fp);
Console.Out.WriteLine($"Looking at {fp} which is {fi.Length} bytes.");
if (fi.Length > 0L)
{
using (StreamReader sr = File.OpenText(fp))
{
while (!sr.EndOfStream)
{
string nextPath = sr.ReadLine();
if (nextPath.Contains("\""))
{
nextPath = nextPath.Replace("\"", "");
}
if (nextPath.Contains(nonBlockSpace))
{
nextPath = nextPath.Replace(nonBlockSpace, "");
}
if (nextPath.Trim().Length > 0)
{
FileDetectMethod fdm = DetectFileExists;
bool foundIt = DetermineFileExistence(nextPath, fdm, "File.Exists");
fdm = DetectFileInfoExists;
foundIt = DetermineFileExistence(nextPath, fdm, "new Filenfo") && foundIt;
string comment = (foundIt) ? " " : " NOT ";
Console.Out.WriteLine($"\tFile {nextPath} was{comment}found.");
}
}
sr.Close();
}
}
}
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.ToString());
}
}
}
if (showSyntax)
{
Console.Out.WriteLine("ExamineFilePathsFromTxtFile [any number of paths to txt files.]");
Console.Out.WriteLine("For each file, iterate through the contents, commenting on file existence.");
}
}
