Language client: improvement to autocomplete after arrow and for servers that include seperation characters to the completion items

src/source_clang.cpp

@@ -893,7 +893,7 @@ Source::ClangViewAutocomplete::ClangViewAutocomplete(const boost::filesystem::pa
   autocomplete.is_restart_key = [this](guint keyval) {
     auto iter = get_buffer()->get_insert()->get_iter();
     iter.backward_chars(2);
-    if(keyval == '.' || (keyval == ':' && *iter == ':') || (keyval == '>' && *iter == '-'))
+    if(keyval == '.' || (*iter == ':' && keyval == ':') || (*iter == '-' && keyval == '>'))
       return true;
     return false;
   };

src/source_language_protocol.cpp

@@ -1610,7 +1610,7 @@ void Source::LanguageProtocolView::setup_autocomplete() {
   autocomplete->is_restart_key = [this](guint keyval) {
     auto iter = get_buffer()->get_insert()->get_iter();
     iter.backward_chars(2);
-    if(keyval == '.' || (keyval == ':' && *iter == ':'))
+    if(keyval == '.' || (*iter == ':' && keyval == ':') || (*iter == '-' && keyval == '>'))
       return true;
     return false;
   };
@@ -1657,7 +1657,7 @@ void Source::LanguageProtocolView::setup_autocomplete() {
       }
       return true;
     }
-    else if(prevprev.backward_char() && *prevprev == ':' && *prev == ':') {
+    else if(prevprev.backward_char() && ((*prevprev == ':' && *prev == ':') || (*prevprev == '-' && *prev == '>'))) {
       {
         LockGuard lock(autocomplete->prefix_mutex);
         autocomplete->prefix = get_buffer()->get_text(prefix_start, prefix_end);
@@ -1689,7 +1689,7 @@ void Source::LanguageProtocolView::setup_autocomplete() {
         autocomplete->prefix = get_buffer()->get_text(prefix_start, prefix_end);
       }
       auto prevprev = prev;
-      autocomplete_enable_snippets = !(*prev == '.' || (prevprev.backward_char() && *prevprev == ':' && *prev == ':'));
+      autocomplete_enable_snippets = !(*prev == '.' || (prevprev.backward_char() && ((*prevprev == ':' && *prev == ':') || (*prevprev == '-' && *prev == '>'))));
       return true;
     }
 
@@ -1808,7 +1808,13 @@ void Source::LanguageProtocolView::setup_autocomplete() {
                 prefix = autocomplete->prefix;
               }
               for(auto &item : items) {
-                auto label = item.string_or("label", "");
+                auto label = item.string_or("filterText", item.string_or("label", ""));
+                if(!label.empty()) {
+                  if(starts_with(label, "."))
+                    label.erase(0, 1);
+                  else if(starts_with(label, "::") || starts_with(label, "->"))
+                    label.erase(0, 2);
+                }
                 if(starts_with(label, prefix)) {
                   auto detail = item.string_or("detail", "");
                   LanguageProtocol::Documentation documentation(item.child_optional("documentation"));