From a8c792706d68e3afd73067d3567d8dea671b0bae Mon Sep 17 00:00:00 2001
From: Maxime Coste <mawww@kakoune.org>
Date: Thu, 30 Aug 2018 20:26:46 +1000
Subject: [PATCH] Fix setting a prefix list option with an empty list

Fixes #2335
---
 src/option_types.hh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/option_types.hh b/src/option_types.hh
index 7d062deb..c6798ef5 100644
--- a/src/option_types.hh
+++ b/src/option_types.hh
@@ -350,6 +350,9 @@ inline String option_to_string(const PrefixedList<P, T>& opt, Quoting quoting)
 template<typename P, typename T>
 inline PrefixedList<P, T> option_from_strings(Meta::Type<PrefixedList<P, T>>, ConstArrayView<String> strs)
 {
+    if (strs.empty())
+        return {{}, {}};
+
     return {option_from_string(Meta::Type<P>{}, strs[0]),
             option_from_strings(Meta::Type<Vector<T, MemoryDomain::Options>>{}, strs.subrange(1))};
 }