fix: clean up

lua/regexplainer.lua

@@ -109,7 +109,7 @@ local function show_for_real(options)
                    {
                      full_regexp_text = get_node_text(node, scratchnr),
                    })
-    return scratchnr
+    vim.api.nvim_buf_delete(scratchnr, { force = true })
   else
     Buffers.hide_all()
   end
@@ -127,11 +127,8 @@ local M = {}
 ---@param options? RegexplainerOptions
 function M.show(options)
   disable_auto = true
-  local scratchnr = show_for_real(options)
+  show_for_real(options)
   disable_auto = false
-  if scratchnr then
-    vim.api.nvim_buf_delete(scratchnr, { force = true })
-  end
 end
 
 --- Yank the explainer for the regexp under the cursor into a given register

lua/regexplainer/component/init.lua

@@ -22,7 +22,7 @@ local get_node_text = vim.treesitter.get_node_text or vim.treesitter.query.get_n
 ---@field children?       RegexplainerComponent     # Components may contain other components, e.g. capture groups
 
 ---@class RegexplainerCaptureGroupComponent         : RegexplainerParentComponent
----@field group_name?     boolean                   # a regexp component marked with `+`
+---@field group_name?     string                    # the name of the capture group, if it's a named group
 ---@field capture_group?  number                    # which capture group does this group represent?
 
 ---@alias RegexplainerComponentType