Method rot_map_iterator

output/java/1.4.17/Interpreter.java:840–867

(InstanceScope scope, Iterator<?> attr, List<ST> prototypes)

    }

    protected List<ST> rot_map_iterator(InstanceScope scope, Iterator<?> attr, List<ST> prototypes) {
        List<ST> mapped = new ArrayList<ST>();
        Iterator<?> iter = attr;
        int i0 = 0;
        int i = 1;
        int ti = 0;
        while ( iter.hasNext() ) {
            Object iterValue = iter.next();
            if ( iterValue==null ) {
                mapped.add(null);
                continue;
            }

            int templateIndex = ti% prototypes.size(); // rotate through
            ti++;
            ST proto = prototypes.get(templateIndex);
            ST st = group.createStringTemplateInternally(proto);
            setFirstArgument(scope, st, iterValue);
            if ( st.impl.isAnonSubtemplate) {
                st.rawSetAttribute("i0", i0);
                st.rawSetAttribute("i", i);
            }
            mapped.add(st);
            i0++;
            i++;
        }
        return mapped;
    }

    /**
     * Renders expressions of the form {@code <names,phones:{n,p | ...}>} or