!759

static PersistentMap<S, S> urlToText;

p {
  urlToText = new PersistentMap("urlToText");
}

static synchronized S html(S uri) {
  uri = dropPrefix("/", uri);
  
  if (empty(uri) || eq(uri, "list")) {
    new L<S> list;
    for (S url : keys(urlToText)) {
      list.add(a("/" + url, "href", pageLink(url)));
    }
    ret h3("Pages") + ul(list);
  }
    
  S html = urlToText.get(tlc(uri));
  ret or2(html, "?");
}

static sync boolean hasURL(S bla) {
  ret urlToText.containsKey(tlc(bla));
}

static sync S getTextForURL(S bla) {
  ret urlToText.get(tlc(bla));
}

// returns previous text if any
static sync S setURL(S bla, S text) {
  ret urlToText.put(tlc(bla), text);
}