question: public static int findFirstNonSpaceOffsetInRange ( @ NotNull CharSequence text , int start , int end ) { for ( ; start < end ; start ++ ) { char c = text . charAt ( start ) ; if ( c != ' ' && c != '\t' ) { return start ; } } return - 1 ; }
target:  Tries to find non white space symbol at the given range at the given document.