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package Interpreter;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.List;
import java.util.Scanner;
//Base class for the interpreter
public class Language {
static boolean hadError = false;
public static void main(String[] args){
//Allow users to input a single line of code
//Still needs some work to re-ask for input after each line
if (args.length < 1){
Scanner input = new Scanner(System.in);
String sourceCode = "1";
while (sourceCode!=""){
System.out.print("Code: ");
sourceCode = input.nextLine();
runInterpreter(sourceCode);
hadError=false;
}
input.close();
//Allow users to provide a path to a file as an argument
} else if (args.length==1){
try {
String sourcecode = Files.readString(Paths.get(args[0])); //Maybe should set charset here
runInterpreter(sourcecode);
} catch (IOException exception){
System.out.println("File not found");
}
} else {
System.out.println("Error, argument should be file path");
System.exit(64);
}
}
//Extract and print each token
private static void runInterpreter(String sourceCode){
TokenScanner scanner = new TokenScanner();
List<Token> tokens = scanner.extractTokens(sourceCode);
//for (Token token : tokens) {
// System.out.println(token);
//}
if (hadError) return;
//Parse into AST
Parser parser = new Parser(tokens);
List<Statement> ast = parser.parse();
if (hadError) return;
Interpreter interpreter = new Interpreter();
interpreter.interpret(ast);
}
static void displayError(String message){
hadError=true;
System.out.println("An error was encountered");
System.out.println(message);
}
}
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