Interpreter.cpp

#include <iostream>
#include <fstream>
#include <string>
#include "DataStructures/SinglyLinkedList.hpp"

#include <regex>
#include <random>
#include "Program.hpp"
#include <cstdlib>

int main(int argc, char** argv) {
	
	std::string fileName;

	if(argc > 2) {
		std::cout << "Please run with the following form: " << std::endl;
		std::cout << "ibscript.exe <filename>" << std::endl;
		std::cout << std::endl;
		std::cout << "For an IDE, please run IBScript.jar using:" << std::endl;
		std::cout << "java -jar IBScript.jar" << std::endl;
		
		std::exit(1);
	} else if(argc == 2) { //Run from file
		fileName = argv[1];
		std::ifstream file(fileName);
		std::string line;
		
		
		
		//std::regex whitespace("^\\s*$");
		
		SinglyLinkedList<std::string> linesList;
		std::string* lines;
		int linesCount;

		while(!file.eof()) {
			std::getline(file, line);
			//std::cout << line << std::endl;
			linesList.add(new std::string(line));
		}
		
		file.close();
		
		linesCount = linesList.size();
		lines = new std::string[linesCount];
		
		//linesList->extractToArray(lines);
		
		ListIterator<std::string>* lIt = linesList.getIterator();
		
		int idx = 0;
		
		while(lIt->hasMore()) {
			
			lines[idx] = *(lIt->getValue());
			
			idx++;
			lIt->next();
		}

		Program prg(lines, linesCount);
		
		//variables.status();
		
		delete[] lines;
	
	} else { //Live interpreter
		SinglyLinkedList<std::string> linesList;
		std::string* lines;


		int level = 1;


		


		while(true) {

			for(int i = 0; i < level; i++) {

				std::cout << "> ";
			}


			std::string line;
			std::getline(std::cin, line);


			std::cout << line << std::endl;


			linesList.add(new std::string(line));

			int linesCount = linesList.size();

			lines = new std::string[linesCount];

			ListIterator<std::string>* lIt = linesList.getIterator();
			
			int idx = 0;
			
			while(lIt->hasMore()) {
				
				lines[idx] = *(lIt->getValue());

				std::cout << ": " << lines[idx] << std::endl;
				
				idx++;
				lIt->next();
			}


			try {
				Program prg(lines, linesCount);
			} catch(RuntimeException) { //If output fails, remove last line
				linesList.removeTail();
			}

			//Remove all outputs, so that unwanted outputs aren't given next program run
			if(line.find("output ") != std::string::npos)
				linesList.removeTail();

			delete[] lines;

		}

	}

}