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package org.example;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Paths;
public class lox {
public static void main(String[] args) throws IOException {
switch (args.length) {
case 0:
RunPropmt();
return;
case 1:
InerpritFile(args[0]);
return;
default:
System.out.println("Invalid arguments");
}
}
private static void RunPropmt() throws IOException {
InputStreamReader inp = new InputStreamReader(System.in);
BufferedReader reader= new BufferedReader(inp);
while (true) {
System.out.print("$ ");
String prompt = reader.readLine();
if (prompt == null) break;
run(prompt);
}
}
private static void InerpritFile(String fileName) throws IOException {
byte[] bytes = Files.readAllBytes(Paths.get(fileName));
run(new String(bytes, Charset.defaultCharset()));
}
private static void run(String program) {
System.out.println(program);
}
}
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