Method strip

output/java/1.4.17/Interpreter.java:1066–1079

Return a new list without null values.

(InstanceScope scope, Object v)

    /** Return a new list without {@code null} values. */

    public Object strip(InstanceScope scope, Object v) {
        if ( v==null ) return null;
        v = convertAnythingIteratableToIterator(scope, v);
        if ( v instanceof Iterator) {
            List<Object> a = new ArrayList<Object>();
            Iterator<?> it = (Iterator<?>)v;
            while ( it.hasNext() ) {
                Object o = it.next();
                if ( o !=null ) a.add(o);
            }
            return a;
        }
        return v; // strip(x)==x when x single-valued attribute
    }

    /**
     * Return a list with the same elements as {@code v} but in reverse order.