How to use

toString

method

in

cc.redberry.core.parser.ParseToken

@Override
public String toString() {
  StringBuilder sb = new StringBuilder();
  sb.append(super.toString()).append('[');
  for (ParseToken node : content)
    sb.append(node.toString()).append(", ");
  sb.deleteCharAt(sb.length() - 1).deleteCharAt(sb.length() - 1).append(']');
  return sb.toString();
}

public String toString(OutputFormat mode) {
  StringBuilder sb = new StringBuilder();
  switch (tokenType) {
    case Trace:
      sb.append("Tr[");
    case Product:
      char operatorChar = mode.is(OutputFormat.LaTeX) ? ' ' : '*';
      for (int i = 0; ; ++i) {
        sb.append(content[i].toString(mode));
        if (i == content.length - 1)
          return tokenType == TokenType.Trace ? sb.append("]").toString() : sb.toString();
        sb.append(operatorChar);
      }
      //throw new RuntimeException();
    case Sum:
      sb.append("(");
      String temp;
      for (int i = 0; ; ++i) {
        temp = content[i].toString(mode);
        if ((temp.charAt(0) == '-' || temp.charAt(0) == '+') && sb.length() != 0)
          sb.deleteCharAt(sb.length() - 1);
        sb.append(content[i].toString(mode));
        if (i == content.length - 1)
          return sb.append(")").toString();
        sb.append('+');
      }
      //throw new RuntimeException();
  }
  throw new RuntimeException("Unsupported token type.");
}