Hack to retrieve the wrong value from boost's exception.

action_skel_code/commandline.cpp

@@ -23,6 +23,16 @@
 namespace po = boost::program_options;
 
 namespace din {
+	ValidationError::ValidationError (const po::validation_error& parOther) :
+		po::validation_error(parOther)
+	{
+	}
+
+	const std::string& ValidationError::raw_value() const {
+		auto it_ret = m_substitutions.find("value");
+		return it_ret->second;
+	}
+
 	bool parse_commandline (int parArgc, char* parArgv[], po::variables_map& parVarMap) {
 		po::options_description set_options(ACTION_NAME " options");
 		//set_options.add_options()
@@ -44,8 +54,8 @@ namespace din {
 		try {
 			po::store(po::command_line_parser(parArgc, parArgv).options(all)/*.positional(pd)*/.run(), parVarMap);
 		}
-		catch (const po::unknown_option& err) {
+		catch (const po::validation_error& err) {
-			throw std::invalid_argument(err.what());
+			throw ValidationError(err);
 		}
 
 		po::notify(parVarMap);

action_skel_code/commandline.hpp

@@ -23,6 +23,14 @@
 #include "dindexer-common/mediatypes.hpp"
 
 namespace din {
+	class ValidationError : boost::program_options::validation_error {
+	public:
+		explicit ValidationError ( const boost::program_options::validation_error& parOther );
+		~ValidationError ( void ) noexcept = default;
+
+		const std::string& raw_value ( void ) const;
+	};
+
 	bool parse_commandline ( int parArgc, char* parArgv[], boost::program_options::variables_map& parVarMap );
 } //namespace din