src: Complete register names in `%reg{}` expansions

Builtin registers have name aliases that can be completed upon when
using a `%reg{}` expansion from the prompt.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/register_manager.hh b/src/register_manager.hh
index 9d3ea3d9..f18bc989 100644
--- a/src/register_manager.hh
+++ b/src/register_manager.hh
@@ -2,6 +2,7 @@
 #define register_manager_hh_INCLUDED
 
 #include "array_view.hh"
+#include "completion.hh"
 #include "exception.hh"
 #include "utils.hh"
 #include "hash_map.hh"
@@ -146,6 +147,7 @@ public:
     Register& operator[](StringView reg) const;
     Register& operator[](Codepoint c) const;
     void add_register(Codepoint c, std::unique_ptr<Register> reg);
+    CandidateList complete_register_name(StringView prefix, ByteCount cursor_pos) const;
 
 protected:
     HashMap<Codepoint, std::unique_ptr<Register>, MemoryDomain::Registers> m_registers;