In some cases, you just need to write a console application and want to be able to pass in different command line parameters as key/pairs. You can use the following C# Command Line Reader, which is simple enough, and easy to use (only 1 file, 1 class).
The full C# source code is available at github.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | /* Author: https://helloacm.com Free to Use, donation is appreciated: https://helloacm.com/out/paypal */ using System; using System.Collections.Generic; namespace CommandLineParametersReader { public class SimpleCommandLineParametersReader { private readonly char SepChar = '='; private string[] _args { get; } private Dictionary<string, string> _dict { get; } private bool CaseSensitive { get; } public CommandLineParametersReader(string[] args, bool isCaseSesnive = false) { if (args == null) { throw new Exception("args should not be null"); } _args = args; CaseSensitive = isCaseSesnive; _dict = new Dictionary<string, string>(); Process(); } // Process Arguments into KeyPairs private void Process() { foreach (var arg in _args) { var s = arg.Trim(); var ss = s.Split(new []{ SepChar }, 2, StringSplitOptions.RemoveEmptyEntries); if (ss.Length <= 0) continue; var key = ss[0]; if (!CaseSensitive) { key = key.ToLower(); } var val = ss[1]; _dict[key] = val; } } // Return the Key with a default value public string Get(string key, string defaultvalue = "") { if (!CaseSensitive) { key = key.ToLower();} return _dict.ContainsKey(key) ? _dict[key] : defaultvalue; } } } |
/*
Author: https://helloacm.com
Free to Use, donation is appreciated: https://helloacm.com/out/paypal
*/
using System;
using System.Collections.Generic;
namespace CommandLineParametersReader
{
public class SimpleCommandLineParametersReader
{
private readonly char SepChar = '=';
private string[] _args { get; }
private Dictionary<string, string> _dict { get; }
private bool CaseSensitive { get; }
public CommandLineParametersReader(string[] args, bool isCaseSesnive = false)
{
if (args == null)
{
throw new Exception("args should not be null");
}
_args = args;
CaseSensitive = isCaseSesnive;
_dict = new Dictionary<string, string>();
Process();
}
// Process Arguments into KeyPairs
private void Process()
{
foreach (var arg in _args)
{
var s = arg.Trim();
var ss = s.Split(new []{ SepChar }, 2, StringSplitOptions.RemoveEmptyEntries);
if (ss.Length <= 0) continue;
var key = ss[0];
if (!CaseSensitive)
{
key = key.ToLower();
}
var val = ss[1];
_dict[key] = val;
}
}
// Return the Key with a default value
public string Get(string key, string defaultvalue = "")
{
if (!CaseSensitive) { key = key.ToLower();}
return _dict.ContainsKey(key) ? _dict[key] : defaultvalue;
}
}
}Example Usage:
1 2 3 4 | var param = new SimpleCommandLineParametersReader(args); param.CaseSensitive = True; var input = param.Get("Input"); // suppose you have command line parameter "Input=InputFile" var Output = param.Get("Output", "DefaultOutput"); |
var param = new SimpleCommandLineParametersReader(args);
param.CaseSensitive = True;
var input = param.Get("Input"); // suppose you have command line parameter "Input=InputFile"
var Output = param.Get("Output", "DefaultOutput");The C++ version is also implemented, and can be found in this post.
–EOF (The Ultimate Computing & Technology Blog) —
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