code: @VisibleForTesting
    static String escape(String text) {
      // unwrap double quotes
      if (text.length() > 1 && text.charAt(0) == '"' && text.charAt(text.length() - 1) == '"') {
        text = text.substring(1, text.length() - 1);
      }
      int i = 0;
      int length = text.length();
      StringBuilder result = new StringBuilder(text.length());
      while (true) {
        int j = text.indexOf('\\', i);
        if (j == -1) {
          result.append(removeUnescapedDoubleQuotes(text.substring(i)));
          break;
        }
        result.append(removeUnescapedDoubleQuotes(text.substring(i, j)));
        if (j == length - 1) {
          // dangling backslash
          break;
        }
        boolean isUnicodeEscape = false;
        char escapeCode = text.charAt(j + 1);
        switch (escapeCode) {
          case '\'':
          case '"':
          case '\\':
          case '?':
          case '@':
          case '#':
            result.append(escapeCode);
            break;
          case 'n':
            result.append('\n');
            break;
          case 't':
            result.append('\t');
            break;
          case 'u':
            isUnicodeEscape = true;
            break;
          default:
            Logger.strict("Unsupported string resource escape code '%s'", escapeCode);
        }
        if (!isUnicodeEscape) {
          i = j + 2;
        } else {
          j += 2;
          if (length - j < CODE_POINT_LENGTH) {
            throw new IllegalArgumentException("Too short code point: \\u" + text.substring(j));
          }
          String codePoint = text.substring(j, j + CODE_POINT_LENGTH);
          result.append(extractCodePoint(codePoint));
          i = j + CODE_POINT_LENGTH;
        }
      }
      return result.toString();
    }
docs: Provides escaping of String resources as described
  [here](http://developer.android.com/guide/topics/resources/string-resource.html#FormattingAndStyling).
  
  @param text Text to escape.
  @return Escaped text.