Scanner.java

/*
  File Name: CM.java

  This file was repurposed from the SampleScanner given to start Checkpoint One
  Contains the logic to run the scanner generated from jflex and cm.flex
*/

import java.io.InputStreamReader;
import java_cup.runtime.Symbol;

public class Scanner {
  private Lexer scanner = null;

  public Scanner( Lexer lexer ) {
    scanner = lexer; 
  }

  public Symbol getNextToken() throws java.io.IOException {
    return scanner.next_token();
  }

  public static void main(String argv[]) {
    try {
      Scanner scanner = new Scanner(new Lexer(new InputStreamReader(System.in)));
      Symbol tok = null;
      while( (tok=scanner.getNextToken()) != null ) {
        System.out.print(sym.terminalNames[tok.sym]);
        if (tok.value != null)
           System.out.print("(" + tok.value + ")");
        System.out.println();
      }
    }
    catch (Exception e) {
      System.out.println("Unexpected exception:");
      e.printStackTrace();
    }
  }
}