estimateDirection method
Estimates the directionality of text using the best known
general-purpose method (using relative word counts). A
TextDirection.UNKNOWN return value indicates completely neutral input.
isHtml is true if text HTML or HTML-escaped.
Implementation
TextDirection estimateDirection(String text, {bool isHtml = false}) {
return Bidi.estimateDirectionOfText(text, isHtml: isHtml); //TODO~!!!
}