47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
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#include <string>
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#include <iostream>
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#include <algorithm>
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#include "tclap/CmdLine.h"
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using namespace TCLAP;
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using namespace std;
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int main(int argc, char** argv)
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{
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// Wrap everything in a try block. Do this every time,
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// because exceptions will be thrown for problems.
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try {
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// Define the command line object.
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CmdLine cmd("Command description message", ' ', "0.9");
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// Define a value argument and add it to the command line.
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ValueArg<string> nameArg("n","name","Name to print",true,"homer","string");
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cmd.add( nameArg );
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// Define a switch and add it to the command line.
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SwitchArg reverseSwitch("r","reverse","Print name backwards", false);
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cmd.add( reverseSwitch );
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// Parse the args.
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cmd.parse( argc, argv );
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// Get the value parsed by each arg.
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string name = nameArg.getValue();
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bool reverseName = reverseSwitch.getValue();
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// Do what you intend too...
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if ( reverseName )
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{
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reverse(name.begin(),name.end());
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cout << "My name (spelled backwards) is: " << name << endl;
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}
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else
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cout << "My name is: " << name << endl;
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} catch (ArgException &e) // catch any exceptions
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{ cerr << "error: " << e.error() << " for arg " << e.argId() << endl; }
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}
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