- Make Scheduler::step_forward return a bool representing if

the step went okay or otherwise if the simulation ended
- Fix simulation states in concrete_simulation.cc
- Manage end of input (now CTRL+D exits the program, and 
you can redirect a file in input knowing that at EOF
sgpemv2 will terminate)
- Fix a bug in Scheduler that didn't add the newly created
environment to History when the simulation ended, thus leading
both to a memory leak and an inconsistency in representing
the simulation


git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@807 3ecf2c5c-341e-0410-92b4-d18e462d057c

src/parse_opts.cc

@@ -131,14 +131,11 @@ parse_options(int argc, char** argv)
 					// initialize the command line version
 					// of sgpemv2
 					TextSimulation sim;
-					
-					while(1)
-						{
-							std::string str;
-							getline(std::cin, str);
-							
-							TextSimulation::parse_command(sim, str);
-						}
+          std::string str;
+
+					while(getline(std::cin, str))
+            // Enter main loop
+            TextSimulation::parse_command(sim, str);
 				} 
 			else 
 				{