Add runitme files for userreg.

3 files changed, 35 insertions, 0 deletions

diff --git a/runtime/autoload/userreg.vim b/runtime/autoload/userreg.vim
new file mode 100644
index 0000000000..fd026a12e6
--- /dev/null
+++ b/runtime/autoload/userreg.vim
@@ -0,0 +1,7 @@
+" This is used for the default userreg function.
+
+lua vim.userreg = require('vim.userreg')
+
+function! userreg#func(action, register, content) abort
+  return v:lua.vim.userreg.fn(a:action, a:register, a:content)
+endfunction
diff --git a/runtime/lua/vim/userreg.lua b/runtime/lua/vim/userreg.lua
new file mode 100644
index 0000000000..d1062dea73
--- /dev/null
+++ b/runtime/lua/vim/userreg.lua
@@ -0,0 +1,27 @@
+local userreg = {}
+
+userreg.store = {}
+userreg.regtable = {}
+
+function userreg.fn(action, register, content)
+  if action == "yank" then
+    if userreg.regtable[register] then
+      userreg.regtable[register]:do_yank(content)
+    else
+      userreg.store[register] = content
+    end
+    return nil
+  else 
+    if userreg.regtable[register] then
+      return userreg.regtable[register]:do_put()
+    else
+      return userreg.store[register] or {}
+    end
+  end
+end
+
+function userreg.register_handler(register, handler) 
+  userreg.regtable[register] = handler
+end
+
+return userreg
diff --git a/runtime/plugin/userreg.vim b/runtime/plugin/userreg.vim
new file mode 100644
index 0000000000..c2a0e71fea
--- /dev/null
+++ b/runtime/plugin/userreg.vim
@@ -0,0 +1 @@
+set userregfun=userreg#func