src/Switch.cc

#include "Switch.hh"
#include "ArgParser.hh"
#include "Usage.hh"

#include <list>
#include <iomanip>
#include <iostream>

using namespace std;

Switch::Switch() : map< string, ArgParser* > () {
  Switch& sw = *this;
  sw[ "help" ]    = new Usage( this );
  sw[ "Help" ]    = sw[ "help" ];
  sw[ "HELP" ]    = sw[ "help" ];
  sw[ "?" ]       = sw[ "help" ];
  
}

Switch::~Switch(){
  // delete all parser object
  list< ArgParser* > buff;
  for( Switch::iterator itr = this->begin(); itr != this->end(); itr++ ){
    if( itr->second != NULL ) buff.push_back( itr->second );
  }
  buff.sort();
  buff.unique();
  for( list< ArgParser* >::iterator itr = buff.begin();
       itr != buff.end(); itr++ ) 
    delete (*itr);
  
}

vector< string > Switch::divide( const std::string& argv ){
  static string lOpt( "--" );
  vector< string > data( 0 );
  if( argv.substr( 0, lOpt.size() ) != lOpt ) return data;
  int sep = argv.find( "=" );
  data.resize( 2, "" );
  if( sep == string::npos ){
    data[ 0 ] = argv.substr( 2 );
  } else {
    data[ 0 ] = argv.substr( 2, sep - 2 );
    data[ 1 ] = argv.substr( sep + 1 );
  }
  return data;
}

bool Switch::parse( const vector< string >& argList ){
  for( int i = 0; i < argList.size(); i++ ){
    vector< string > d = this->divide( argList[ i ] );
    if( d.size() == 0 ) continue;
    Switch::iterator itr = this->find( d[ 0 ] );
    if( itr == this->end() ) {
      
      continue;
    }
    if( ! ( *( itr->second ) )( d[ 1 ] ) ) return false;
  }
  return true;
}