1.1 --- a/c++/parameter-lister/CLI.cpp	Sun May 03 17:05:51 2015 +0200
     1.2 +++ b/c++/parameter-lister/CLI.cpp	Sun May 03 18:08:40 2015 +0200
     1.3 @@ -2,12 +2,31 @@
     1.4  #include <iostream>
     1.5  #include <vector>
     1.6  #include <algorithm>
     1.7 +#include <boost/optional.hpp>
     1.8  
     1.9 -#include "info/globalcode/terminalCodes/TerminalCodes.h"
    1.10 +#include "info/globalcode/parameterLister/terminalCodes/TerminalCodes.h"
    1.11  
    1.12  using namespace std;
    1.13  using namespace info::globalcode::parameterLister;
    1.14  
    1.15 +namespace info {
    1.16 +namespace globalcode {
    1.17 +namespace parameterLister {
    1.18 +
    1.19 +boost::optional<string> getenv(const string name) {
    1.20 +	const char * value = ::getenv(name.c_str());
    1.21 +	if (value == 0) {
    1.22 +		return boost::optional<string>();
    1.23 +	} else {
    1.24 +		return boost::optional<string>(value);
    1.25 +	}
    1.26 +}
    1.27 +
    1.28 +
    1.29 +}
    1.30 +}
    1.31 +}
    1.32 +
    1.33  int main(int argc, char* argv[]) {
    1.34  	terminalCodes::Modifier fgGreen(terminalCodes::FG_GREEN);
    1.35  	terminalCodes::Modifier fgReset(terminalCodes::FG_DEFAULT);
    1.36 @@ -31,24 +50,17 @@
    1.37  		cout << i + 1 << ":" << s.length() << " = \"" << s << "\"" << endl;
    1.38  	}
    1.39  
    1.40 +	{
    1.41 +		string envName = args[0];
    1.42 +		boost::optional<string> outputModule = getenv(envName);
    1.43  
    1.44 +		if (outputModule.is_initialized()) {
    1.45 +			cout << "ENV: " << envName << " = " << outputModule.get();
    1.46 +		} else {
    1.47 +			cout << "ENV: " << envName << " is missing";
    1.48 +		}
    1.49 +	}
    1.50  
    1.51  
    1.52  	return 0;
    1.53 -}
    1.54 -
    1.55 -
    1.56 -
    1.57 -namespace info {
    1.58 -namespace globalcode {
    1.59 -namespace parameterLister {
    1.60 -
    1.61 -
    1.62 -
    1.63 -
    1.64 -
    1.65 -}
    1.66 -}
    1.67 -}
    1.68 -
    1.69 -
    1.70 +}
    1.71 \ No newline at end of file