Generalized '*' keybind

keybind.lua

vim.api.nvim_set_keymap("n", "g*", function()
  Snacks.picker.grep({ focus = "list", search = vim.fn.expand("<cword>") })
end, {noremap=true, desc = "Grep keyword"})

vim.api.nvim_set_keymap("v", "g*", function()
  -- leave visual mode to update registers
  vim.cmd 'normal! \28\14' -- :h CTRL-\_CTRL-N
  local s = vim.fn.getpos("'<")
  local e = vim.fn.getpos("'>")
  local selection = vim.api.nvim_buf_get_text(0, s[2]-1, s[3]-1, e[2]-1, e[3], {})
  Snacks.picker.grep({
    focus = "list",
    search = table.concat(selection, ' '),
  })
end, {noremap=true, desc = "Grep selection"})