endsWithRtl method

bool endsWithRtl (String text, [ dynamic isHtml = false ])

Determines if the exit directionality (ie, the last strongly-directional character in text is RTL. If isHtml is true, the text is HTML or HTML-escaped.

Implementation 

static bool endsWithRtl(String text, [isHtml = false]) {
  return new RegExp('[$_RTL_CHARS][^$_LTR_CHARS]*\$')
      .hasMatch(isHtml ? stripHtmlIfNeeded(text) : text);
}