Method source

src/main/java/org/sfj/StringsCompare.java:253–279

Source for a reader. @param r reader to draw from @return LineSource @throws IOException on underlying exception

(Reader r)

   * @throws IOException on underlying exception
   */
  public static LineSource source(Reader r) throws IOException {
    BufferedReader br = new BufferedReader(r);
    String first = br.readLine();
    return new LineSource() {
      String next = first;

      @Override
      public boolean hasLine() {
        return next != null;
      }

      @Override
      public String nextLine() throws IOException {
        if (hasLine()) {
          String p = next;
          next = br.readLine();
          return p;
        }
        throw new NoSuchElementException();
      }

      @Override
      public void close() throws IOException {
        r.close();
      }
    };
  }

  /**
   * Source from a string.