-- https://github.com/echasnovski/nvim/blob/0a87022921d2e2a95fb987c4f11fc4804b57d6f9/plugin/21_functions.lua#L23

vim.keymap.set("n", "<Plug>(ivy-insert-section)", function()
  local symbol = "="
  local total_width = vim.o.textwidth > 0 and vim.o.textwidth or 79

  -- Insert template: 'commentstring' but with '%s' replaced by section symbols
  local comment_string = vim.bo.commentstring
  local comment_str_len = #comment_string:format("")
  local content = string.rep(symbol, total_width - comment_str_len)
  local section_template = comment_string:format(content)
  local okn = vim.fn.append(vim.fn.line("."), { section_template })
  if okn == 1 then
    return
  end

  -- Enable Replace mode in appropriate place
  local inner_start = comment_string:find("%%s")
  vim.fn.cursor(vim.fn.line(".") + 1, inner_start)
  vim.cmd([[startreplace]])
end)