question: public static boolean requiresBidi ( char [ ] text , int start , int limit ) { return BidiBase . requiresBidi ( text , start , limit ) ; }
target:  Return true if the specified text requires bidi analysis.  If this returns false, the text will display left-to-right.  Clients can then avoid constructing a Bidi object. Text in the Arabic Presentation Forms area of Unicode is presumed to already be shaped and ordered for display, and so will not cause this function to return true.