Introduce "goto-title" operation which works like the "goto" command

doc/keycmds.dsv

@@ -68,3 +68,4 @@ home||HOME||Go to the first item in the list.
 end||END||Go to the last item in the list.
 macro-prefix||,||Initiate macro execution. The next key press selects the actual macro and runs it.
 switch-focus||TAB||Switch focus between widgets. This is currently only applicable to the `filebrowser` and `dirbrowser` contexts.
+goto-title||||Go to item whose title contains the specified string.

include/keymap.h

@@ -63,6 +63,7 @@ enum Operation {
 	OP_SETTAG,
 	OP_SEARCH,
 	OP_GOTO_URL,
+	OP_GOTO_TITLE,
 	OP_ENQUEUE,
 	OP_REDRAW,
 	OP_CMDLINE,
@@ -122,6 +123,7 @@ enum Operation {
 	OP_INT_BM_END,
 	OP_INT_EDITFLAGS_END,
 	OP_INT_START_SEARCH,
+	OP_INT_GOTO_TITLE,
 
 	OP_INT_GOTO_URL,
 

src/feedlistformaction.cpp

@@ -489,6 +489,18 @@ bool FeedListFormAction::process_operation(Operation op,
 				qna, OP_INT_START_SEARCH, &searchhistory);
 		}
 		break;
+	case OP_GOTO_TITLE:
+		if (automatic) {
+			if (args->size() >= 1) {
+				qna_responses = {args[0]};
+				finished_qna(OP_INT_GOTO_TITLE);
+			}
+		} else {
+			std::vector<QnaPair> qna;
+			qna.push_back(QnaPair(_("Title: "), ""));
+			this->start_qna(qna, OP_INT_GOTO_TITLE);
+		}
+		break;
 	case OP_CLEARFILTER:
 		apply_filter = false;
 		do_redraw = true;
@@ -827,6 +839,9 @@ void FeedListFormAction::finished_qna(Operation op)
 	case OP_INT_START_SEARCH:
 		op_start_search();
 		break;
+	case OP_INT_GOTO_TITLE:
+		goto_feed(qna_responses[0]);
+		break;
 	default:
 		break;
 	}

src/keymap.cpp

@@ -190,6 +190,7 @@ static const std::vector<OpDesc> opdescs = {
 		KM_FEEDLIST | KM_HELP | KM_ARTICLELIST | KM_ARTICLE
 	},
 	{OP_GOTO_URL, "goto-url", "#", _("Goto URL #"), KM_ARTICLE},
+	{OP_GOTO_TITLE, "goto-title", "", _("Goto item with title"), KM_FEEDLIST},
 	{OP_ENQUEUE, "enqueue", "e", _("Add download to queue"), KM_ARTICLE},
 	{
 		OP_RELOADURLS,

test/keymap.cpp

@@ -59,7 +59,8 @@ TEST_CASE(
 			if (i == OP_OPENALLUNREADINBROWSER ||
 				i == OP_MARKALLABOVEASREAD ||
 				i == OP_OPENALLUNREADINBROWSER_AND_MARK ||
-				i == OP_SAVEALL) {
+				i == OP_SAVEALL ||
+				i == OP_GOTO_TITLE) {
 				continue;
 			}
 			bool used_in_some_context = false;