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More command-line argument processing work

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This commit is contained in:
Edward Wright 2019-05-29 09:54:54 -04:00
parent 37fb2636c2
commit 92dfc8a431
1 changed files with 129 additions and 44 deletions
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169
SimplySerial/SimplySerial.cs
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@ -13,54 +13,23 @@ namespace SimplySerial
static bool _continue = true;
static SerialPort _serialPort;
static bool Quiet = false;
static bool NoWait = false;
// default comspec values set here will be overridden by values passed through command-line arguments
static string port = string.Empty;
static int baud = 9600;
static Parity parity = Parity.None;
static int dataBits = 8;
static StopBits stopBits = StopBits.One;
static void Main(string[] args)
{
ProcessArguments(args);
ConsoleKeyInfo cki = new ConsoleKeyInfo();
Console.TreatControlCAsInput = true;
// default comspec values (will be overridden by command-line arguments)
string[] availablePorts = SerialPort.GetPortNames();
string port = string.Empty;
int baud = 9600;
Parity parity = Parity.None;
int dataBits = 8;
StopBits stopBits = StopBits.One;
if (availablePorts.Count() < 1)
ExitProgram("No COM ports detected.", -1);
else
port = availablePorts[0];
for(int i = 0; i < args.Count(); i++)
{
if ((args[i].ToLower()).StartsWith("-c"))
{
Console.WriteLine("PORT: {0}", args[i]);
}
if ((args[i].ToLower()).StartsWith("-b"))
{
Console.WriteLine("BAUD: {0}", args[i]);
}
if ((args[i].ToLower()).StartsWith("-p"))
{
Console.WriteLine("PARITY: {0}", args[i]);
}
if ((args[i].ToLower()).StartsWith("-d"))
{
Console.WriteLine("DATABITS: {0}", args[i]);
}
if ((args[i].ToLower()).StartsWith("-s"))
{
Console.WriteLine("STOPBITS: {0}", args[i]);
}
}
ExitProgram("That's All Folks!", 1);
_serialPort = new SerialPort("COM15", 9600, Parity.None, 8, StopBits.One);
_serialPort.Handshake = Handshake.None;
@ -107,12 +76,128 @@ namespace SimplySerial
}
/// <summary>
/// Validates and processes any command-line arguments that were passed in. Invalid arguments will halt program execution.
/// </summary>
/// <param name="args">Command-line parameters</param>
static void ProcessArguments(string[] args)
{
// get a list of all available com ports
string[] availablePorts = SerialPort.GetPortNames();
// iterate through command-line arguments
foreach (string arg in args)
{
// split argument into components based on 'key:value' formatting
string[] argument = arg.Split(':');
// switch to lower case and remove '/', '--' and '-' from beginning of arguments - we can process correctly without them
argument[0] = (argument[0].TrimStart('/', '-')).ToLower();
// help
if (argument[0].StartsWith("h") || argument[0].StartsWith("?"))
{
ExitProgram("Sorry, you're on your own.", 0);
}
// quiet (no output to console other than comes in via serial)
else if (argument[0].StartsWith("q"))
{
SimplySerial.Quiet = true;
}
// nowait (disables the "press any key to exit" function)
else if (argument[0].StartsWith("n"))
{
SimplySerial.NoWait = true;
}
// the remainder of possible command-line arguments require two parameters, so let's enforce that now
else if (argument.Count() < 2)
{
ExitProgram(("Invalid or incomplete argument <" + arg + ">\nTry 'SimplySerial help' to see a list of valid arguments"), -1);
}
// com port
else if (argument[0].StartsWith("c"))
{
string newPort = argument[1].ToUpper();
if (!argument[1].StartsWith("COM"))
newPort = "COM" + argument[1];
if (!availablePorts.Contains(newPort))
ExitProgram("Cannot find specified port <" + newPort + ">", -1);
port = newPort;
Output("PORT: " + port);
}
// baud rate
else if (argument[0].StartsWith("b"))
{
//validate requested baud rate
Output("BAUD: " + argument[1]);
}
// parity
else if (argument[0].StartsWith("p"))
{
//validate requested COM port
Output("PARITY: " + argument[1]);
}
// databits
else if (argument[0].StartsWith("d"))
{
//validate requested data bits
Output("DATABITS: " + argument[1]);
}
// stopbits
else if (argument[0].StartsWith("s"))
{
//validate requested stop bits
Output("STOPBITS: " + argument[1]);
}
else
{
ExitProgram(("Invalid or incomplete argument <" + arg + ">\nTry 'SimplySerial help' to see a list of valid arguments"), -1);
}
}
// default to the first/only available com port, exit with error if no ports are available
if (availablePorts.Count() >= 1)
SimplySerial.port = availablePorts[0];
else
ExitProgram("No COM ports detected.", -1);
ExitProgram("That's All Folks!", 1);
}
/// <summary>
/// Writes messages using Console.WriteLine() as long as the 'Quiet' option hasn't been enabled
/// </summary>
/// <param name="message">Message to output (assuming 'Quiet' is false)</param>
static void Output(string message)
{
if (!SimplySerial.Quiet)
Console.WriteLine(message);
}
/// <summary>
/// Writes the specified exit message to the console, then waits for user to press a key before halting program execution.
/// </summary>
/// <param name="message">Message to display - should indicate the reason why the program is terminating.</param>
/// <param name="exitCode">Code to return to parent process. Should be &lt;0 if an error occurred, &gt;=0 if program is terminating normally.</param>
static void ExitProgram(string message, int exitCode)
{
Console.WriteLine(message);
Output(message);
Console.WriteLine("\nPress any key to exit...");
if (!SimplySerial.NoWait)
{
while (!Console.KeyAvailable)
Thread.Sleep(25);
}
Environment.Exit(exitCode);
}
}