feat: add hilbish.vim interface (closes #114)

nature/init.lua

@@ -7,6 +7,7 @@ package.path = package.path .. ';' .. hilbish.dataDir .. '/?/init.lua'
 require 'nature.commands'
 require 'nature.completions'
 require 'nature.opts'
+require 'nature.vim'
 
 local shlvl = tonumber(os.getenv 'SHLVL')
 if shlvl ~= nil then

nature/vim.lua

@@ -0,0 +1,19 @@
+local vim = {}
+hilbish.vim = {
+	registers = {}
+}
+
+setmetatable(hilbish.vim.registers, {
+	__newindex = function(_, k, v)
+		hilbish.editor.setVimRegister(k, v)
+	end,
+	__index = function(_, k)
+		return hilbish.editor.getVimRegister(k)
+	end
+})
+
+setmetatable(hilbish.vim, {
+	__index = function(_, k)
+		if k == 'mode' then return hilbish.vimMode end
+	end
+})