<Tab> and <S-Tab> on lists like in obsidian app.

[neo451]

Just a simple idea, can be improved.

---@params inc boolean
local function do_spaces(inc)
  return function()
    local line = vim.api.nvim_get_current_line()
    local trimmed = vim.trim(line)
    local row = vim.api.nvim_win_get_cursor(0)[1]
    local col = #line + (inc and vim.o.tabstop or -vim.o.tabstop)
    if list_markers[trimmed:sub(1, 1)] then
      vim.cmd.normal(inc and ">>" or "<<")
      vim.api.nvim_win_set_cursor(0, { row, col })
    end
  end
end

vim.keymap.set({ "i", "n" }, "<Tab>", do_spaces(true))
vim.keymap.set({ "i", "n" }, "<S-Tab>", do_spaces(false))

you can do more simply like this but loose the control of controlling your cursor:

vim.keymap.set({ "i", "n" }, "<Tab>", "<cmd>norm >><cr>")
vim.keymap.set({ "i", "n" }, "<S-Tab>", "<cmd>norm <<<cr>")