Register finder (#275)

builtin: Registers finder. view and edit vim registers.

lua/telescope/actions/init.lua

@@ -169,6 +169,45 @@ actions.set_command_line = function(prompt_bufnr)
   vim.cmd(entry.value)
 end
 
+actions.edit_register = function(prompt_bufnr)
+  local entry = actions.get_selected_entry(prompt_bufnr)
+  local picker = actions.get_current_picker(prompt_bufnr)
+
+  vim.fn.inputsave()
+  local updated_value = vim.fn.input("Edit [" .. entry.value .. "] ❯ ", entry.content)
+  vim.fn.inputrestore()
+  if updated_value ~= entry.content then
+    vim.fn.setreg(entry.value, updated_value)
+    entry.content = updated_value
+  end
+
+  -- update entry in results table
+  -- TODO: find way to redraw finder content
+  for k, v in pairs(picker.finder.results) do
+    if v == entry then
+      v.content = updated_value
+    end
+  end
+  -- print(vim.inspect(picker.finder.results))
+end
+
+actions.paste_register = function(prompt_bufnr)
+  local entry = actions.get_selected_entry(prompt_bufnr)
+
+  actions.close(prompt_bufnr)
+
+  -- ensure that the buffer can be written to
+  if vim.api.nvim_buf_get_option(vim.api.nvim_get_current_buf(), "modifiable") then
+    print("Paste!")
+    -- substitute "^V" for "b"
+    local reg_type = vim.fn.getregtype(entry.value)
+    if reg_type:byte(1, 1) == 0x16 then
+      reg_type = "b" .. reg_type:sub(2, -1)
+    end
+    vim.api.nvim_put({entry.content}, reg_type, true, true)
+  end
+end
+
 actions.run_builtin = function(prompt_bufnr)
   local entry = actions.get_selected_entry(prompt_bufnr)