question: public static void decodePathSegment ( List < PathSegment > segments , String segment , boolean decode ) { int colon = segment . indexOf ( ';' ) ; if ( colon != - 1 ) { segments . add ( new PathSegmentImpl ( ( colon == 0 ) ? "" : segment . substring ( 0 , colon ) , decode , decodeMatrix ( segment , decode ) ) ) ; } else { segments . add ( new PathSegmentImpl ( segment , decode ) ) ; } }
target:  Decode the path segment and add it to the list of path segments.