Now all pages in sitemap are detected

Also made the code not language-related so it can be used as a backend
for all my org-generated websites.

web/dart/parse_sitemap.dart

@@ -1,6 +1,7 @@
 import 'dart:html' show HttpRequest;
 
 import 'package:html/parser.dart' show parse;
+import 'package:html/dom.dart' show Element;
 
 // Get the sitemap content
 Future<String> getSitemap() async {
@@ -13,26 +14,30 @@ Future<String> getSitemap() async {
   return 'Error';
 }
 
+// Parse the list of elements and detect pages from this list
+Map<String, String> detectPages(List<Element> sitemap, [String prefix]) {
+  final links = <String, String>{};
+  for (var elem in sitemap) {
+    if (elem.outerHtml.contains('index')) {
+      continue;
+    } else if (elem.innerHtml.startsWith('<a')) {
+      elem = elem.firstChild;
+      final url = elem.attributes['href'];
+      final text = elem.firstChild.text;
+      links[url] = (prefix == null) ? text : '$text ($prefix)';
+    } else {
+      final prefix = elem.firstChild.text;
+      final ul = elem.children[0].children;
+      links.addAll(detectPages(ul, prefix));
+    }
+  }
+  return links;
+}
+
 // This function returns a Map which contains all links to languages detected
 // from the sitemap.
 Future<Map<String, String>> parseSitemap() async {
-  var links = <String, String>{};
-  await getSitemap().then((String content) {
-    final sitemap = parse(content).getElementsByClassName('org-ul')[0].children;
-    for (var elem in sitemap) {
-      // TODO: make this recursive so prefixes in nested folders can be added to
-      // each other
-      if (elem.innerHtml.startsWith('<a')) {
-        elem = elem.firstChild;
-        final text = elem.firstChild.text;
-        final url = elem.attributes['href'];
-        if (!url.contains('index')) {
-          links[url] = text;
-        }
-      } else {
-        print('Sitemap folder:\n${elem.innerHtml}');
-      }
-    }
-  });
-  return links;
+  final content = await getSitemap();
+  final sitemap = parse(content).getElementsByClassName('org-ul')[0].children;
+  return detectPages(sitemap);
 }

web/dart/reorganize_html.dart

@@ -15,10 +15,10 @@ Element makeIcon(List<String> classes, [String id]) {
   return icon;
 }
 
-Future<Element> makeLanguages() async {
-  // Languages
-  var languages = Element.ul()
-    ..attributes['id'] = 'drop-lang'
+Future<Element> makePages() async {
+  // Pages
+  var pages = Element.ul()
+    ..attributes['id'] = 'drop-page'
     ..classes.add('dropdown');
   await parseSitemap().then((final sitemap) => {
         sitemap.forEach((url, name) {
@@ -29,15 +29,15 @@ Future<Element> makeLanguages() async {
                 Element.a()
                   ..attributes['href'] = url
                   ..innerText = name);
-          languages.insertAdjacentElement('beforeEnd', link);
+          pages.insertAdjacentElement('beforeEnd', link);
         })
       });
   return Element.li()
     ..append(Element.a()
       ..attributes['href'] = 'javascript:void(0)'
-      ..append(makeIcon(['fas', 'fa-language'])))
+      ..append(makeIcon(['fas', 'fa-flag'])))
     ..classes.addAll(['nav-item', 'has-dropdown'])
-    ..insertAdjacentElement('beforeEnd', languages);
+    ..insertAdjacentElement('beforeEnd', pages);
 }
 
 Future<Element> makeTocDropDown() async {
@@ -115,7 +115,7 @@ Future<Element> makeShare() async {
 
 // Add a navbar atop of the HTML body, containing two buttons:
 // - One back to home
-// - A dropdown to each language detected in the sitemap
+// - A dropdown to each page detected in the sitemap
 Future<Element> makeNavbar() async {
   var navbar_content = Element.ul()..classes.add('navbar-nav');
 
@@ -128,8 +128,8 @@ Future<Element> makeNavbar() async {
           ..attributes['href'] = '/'
           ..append(makeIcon(['fas', 'fa-home']))));
 
-  // Add languages
-  navbar_content.append(await makeLanguages());
+  // Add pages
+  navbar_content.append(await makePages());
 
   // TOC icon
   navbar_content.append(await makeTocDropDown());

web/style/style.scss

@@ -381,7 +381,7 @@ header {
     transform: translateX(-75%);
 }
 
-#drop-lang {
+#drop-page {
     flex-direction: column;
     transform: translateX(-40%);
     li {