Finally, the main function is almost identical to the previous function.
Main.cpp:
#include <QApplication>
#include <QMessageBox>
#include <IOStream>
using namespace std;
#include "Action.h"
#include "Error.h"
#include "Scanner.h"
#include "Parser.h"
#include "Evaluator.h"
#include "ViewerWidget.h"
int main(int argc, char *argv[]) {
Scanner::init();
QApplication application(argc, argv);
try {
QString path = "C:\Input.dsl";
QFile file(path);
if (!file.open(QIODevice::ReadOnly)) {
error("Cannot open file "" + path + "" for reading.");
}
QString buffer(file.readAll());
Scanner scanner(buffer); The only difference is that the parser generates a sequence of directives rather than actions, as well as a function map, which is sent to the evaluator that generates the final action list that is read and executed by the viewer that displays the graphical objects:
QList<Directive> directiveList...