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#include <iostream>
#include <string>
#include "ParseHelper.h"
#include "ParseListener.h"
#include "Interpreter.h"
const std::string STD_PROMPT = ">>> ";
const std::string MULTILINE_PROMPT = "... ";
struct InterpreterRelay : public ParseListener
{
Interpreter* m_interpreter;
InterpreterRelay( ):
m_interpreter( new Interpreter )
{ }
virtual void parseEvent( const ParseMessage& msg )
{
if ( msg.errorCode )
{
std::cout << "(" << msg.errorCode << ") " << msg.message << "\n";
return;
}
else
{
int err;
std::string res = m_interpreter->interpret( msg.message, &err );
std::cout << "(" << msg.errorCode << ") " << res << "\n";
}
}
};
int main( int argc, char *argv[] )
{
Interpreter::Initialize( );
const std::string* prompt = &STD_PROMPT;
ParseHelper helper;
ParseListener* listener = new InterpreterRelay;
helper.subscribe( listener );
std::string str;
std::cout << *prompt;
std::getline( std::cin, str );
while ( str != "quit" )
{
std::cout << str << "\n";
helper.process( str );
if ( helper.buffered( ) )
{
prompt = &MULTILINE_PROMPT;
}
else
{
prompt = &STD_PROMPT;
}
std::cout << *prompt;
std::getline( std::cin, str );
}
Interpreter::Finalize( );
return 0;
}
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