Filtering out non-matches when autocompleting inside token spellings (not right after -> for instance).

src/selectiondialog.cc

@@ -245,9 +245,9 @@ void CompletionDialog::show() {
   
   show_offset=text_view.get_buffer()->get_insert()->get_iter().get_offset();
 
-  if(show_offset==start_mark->get_iter().get_offset()) {
   std::shared_ptr<std::string> search_key(new std::string());
   auto filter_model=Gtk::TreeModelFilter::create(list_view_text.get_model());  
+  if(show_offset==start_mark->get_iter().get_offset()) {
     filter_model->set_visible_func([this, search_key](const Gtk::TreeModel::const_iterator& iter){
       std::string row_lc;
       iter->get_value(0, row_lc);
@@ -258,13 +258,22 @@ void CompletionDialog::show() {
         return true;
       return false;
     });
+  }
+  else {
+    filter_model->set_visible_func([this, search_key](const Gtk::TreeModel::const_iterator& iter){
+      std::string row;
+      iter->get_value(0, row);
+      if(row.find(*search_key)==0)
+        return true;
+      return false;
+    });
+  }
   list_view_text.set_model(filter_model);
   search_entry.signal_changed().connect([this, search_key, filter_model](){
     *search_key=search_entry.get_text();
     filter_model->refilter();
     list_view_text.set_search_entry(search_entry); //TODO:Report the need of this to GTK's git (bug)
   });
-  }
   
   list_view_text.signal_row_activated().connect([this](const Gtk::TreeModel::Path& path, Gtk::TreeViewColumn*) {
     select();