hasAnyRtl method

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

Determines if the given text has any RTL characters in it. If isHtml is true, the text is HTML or HTML-escaped.

Implementation 

static bool hasAnyRtl(String text, [isHtml = false]) {
  return new RegExp(r'[' '$_RTL_CHARS' r']')
      .hasMatch(isHtml ? stripHtmlIfNeeded(text) : text);
}