Function combine_lines

src/command/edit.cpp:756–770

};

static void combine_lines(agi::Context *c, void (*combiner)(AssDialogue *, AssDialogue *), wxString const& message) {
	auto sel = c->selectionController->GetSortedSelection();

	AssDialogue *first = sel[0];
	combiner(first, nullptr);
	for (size_t i = 1; i < sel.size(); ++i) {
		combiner(first, sel[i]);
		first->End = std::max(first->End, sel[i]->End);
		delete sel[i];
	}

	c->selectionController->SetSelectionAndActive({first}, first);

	c->ass->Commit(message, AssFile::COMMIT_DIAG_ADDREM | AssFile::COMMIT_DIAG_FULL);
}

static void combine_karaoke(AssDialogue *first, AssDialogue *second) {
	if (second)