nvim2023/after/plugin/barbar.lua

local map = vim.api.nvim_set_keymap
local opts = { noremap = true, silent = true }

local function macos()
  -- Move to previous/next
  map('n', '≤', '<Cmd>BufferPrevious<CR>', opts)
  map('n', '≥', '<Cmd>BufferNext<CR>', opts)
  -- Re-order to previous/next
  map('n', '¯', '<Cmd>BufferMovePrevious<CR>', opts)
  map('n', '˘', '<Cmd>BufferMoveNext<CR>', opts)
  -- Goto buffer in position...
  map('n', '¡', '<Cmd>BufferGoto 1<CR>', opts)
  map('n', '™', '<Cmd>BufferGoto 2<CR>', opts)
  map('n', '£', '<Cmd>BufferGoto 3<CR>', opts)
  map('n', '¢', '<Cmd>BufferGoto 4<CR>', opts)
  map('n', '∞', '<Cmd>BufferGoto 5<CR>', opts)
  map('n', '§', '<Cmd>BufferGoto 6<CR>', opts)
  map('n', '¶', '<Cmd>BufferGoto 7<CR>', opts)
  map('n', '•', '<Cmd>BufferGoto 8<CR>', opts)
  map('n', 'ª', '<Cmd>BufferGoto 9<CR>', opts)
  map('n', 'º', '<Cmd>BufferLast<CR>', opts)
  -- Pin/unpin buffer
  map('n', 'π', '<Cmd>BufferPin<CR>', opts)
  -- Close buffer
  map('n', 'ç', '<Cmd>BufferClose<CR>', opts)
end

vim.api.nvim_create_user_command("MacOS", macos, {})

if vim.loop.os_uname().sysname == "Darwin" then
  macos()
else
  -- Move to previous/next
  map('n', '<A-,>', '<Cmd>BufferPrevious<CR>', opts)
  map('n', '<A-.>', '<Cmd>BufferNext<CR>', opts)
  -- Re-order to previous/next
  map('n', '<A-<>', '<Cmd>BufferMovePrevious<CR>', opts)
  map('n', '<A->>', '<Cmd>BufferMoveNext<CR>', opts)
  -- Goto buffer in position...
  map('n', '<A-1>', '<Cmd>BufferGoto 1<CR>', opts)
  map('n', '<A-2>', '<Cmd>BufferGoto 2<CR>', opts)
  map('n', '<A-3>', '<Cmd>BufferGoto 3<CR>', opts)
  map('n', '<A-4>', '<Cmd>BufferGoto 4<CR>', opts)
  map('n', '<A-5>', '<Cmd>BufferGoto 5<CR>', opts)
  map('n', '<A-6>', '<Cmd>BufferGoto 6<CR>', opts)
  map('n', '<A-7>', '<Cmd>BufferGoto 7<CR>', opts)
  map('n', '<A-8>', '<Cmd>BufferGoto 8<CR>', opts)
  map('n', '<A-9>', '<Cmd>BufferGoto 9<CR>', opts)
  map('n', '<A-0>', '<Cmd>BufferLast<CR>', opts)
  -- Pin/unpin buffer
  map('n', '<A-p>', '<Cmd>BufferPin<CR>', opts)
  -- Close buffer
  map('n', '<A-c>', '<Cmd>BufferClose<CR>', opts)
end

-- Wipeout buffer
--                 :BufferWipeout
-- Close commands
--                 :BufferCloseAllButCurrent
--                 :BufferCloseAllButPinned
--                 :BufferCloseAllButCurrentOrPinned
--                 :BufferCloseBuffersLeft
--                 :BufferCloseBuffersRight
-- Magic buffer-picking mode
-- map('n', '<C-P>', '<Cmd>BufferPick<CR>', opts)
-- Sort automatically by...
map('n', '<Space>bb', '<Cmd>BufferOrderByBufferNumber<CR>', opts)
map('n', '<Space>bd', '<Cmd>BufferOrderByDirectory<CR>', opts)
map('n', '<Space>bl', '<Cmd>BufferOrderByLanguage<CR>', opts)
map('n', '<Space>bw', '<Cmd>BufferOrderByWindowNumber<CR>', opts)