private static int decodePercent ( final CharSequence s , final int length , final int i ) { if ( i + 2 >= length ) { return INVALID ; } final char n1 = s . charAt ( i + 1 ) ; final char n2 = s . charAt ( i + 2 ) ; return decodeNibbles ( n1 , n2 ) ; }
Decode a percent encoded byte . E . g . %3F - > 63 .