interpreter.h

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#pragma once
 
#include <memory>
#include <unistd.h>
#include "context.h"
#include "helper.h"
 
 
class Interpreter {
 
  bool verbose_ = false;         
  Context * current_;            
  Interpreter() {};
  Interpreter( const Interpreter& ) = delete;
  Interpreter& operator=( const Interpreter& ) = delete;
 
public:
  static Interpreter * get() {
    static Interpreter * instance;
    if( !instance ) instance = new Interpreter;
    return instance;
  }
 
public_accessor
  bool getVerbose() const { return verbose_; }
 
  Context * getContext() const { return current_; }
 
  void setContext( Context * p_c ) { current_ = p_c; }
 
public_other
  void commandline( int p_argc, char** p_argv ) {
    opterr = 0;           // shut down GetOpt error messages (return '?')
 
    while ( int opt = getopt( p_argc, p_argv, "hv" ) != -1 )
      switch ( opt ) {
        case 'h':
          cout << "HELP" << endl;
          inErrExit( helptext, "help text");   // TODO: implement a small help text
          break;
        case 'v':
          verbose_ = true;
          cout << "KS:verbose mode activated" << endl;
          break;
        case '?':
          inErrExit( unknownoption, string( "'") + char(optopt) + string("'") );
      }
  }
};