delimited hex and binary integer augend do not work

[alex-tdrn]

Hello, first of all thank you for this amazing plugin.

I've ran into an issue when trying to define number dial augends for hex and binary numbers with delimiters. When trying to increment or even decrement hex numbers, 2 leading zeroes are added every time. When trying to increment a binary number, I get an error message.
Dials with radix = 10 work perfectly.
Here is a screencap:

I've reduced the config to the following lines. I am using ' as a separator here, for c++, but the same issues happen when using '_' for rust.

local augend = require("dial.augend")
require("dial.config").augends:register_group({
    default = {
        augend.integer.new({
            radix = 16,
            prefix = "0x",
            case = "lower",
            delimiter = "'",
            delimiter_digits = 2,
        }),
        augend.integer.new({
            radix = 2,
            prefix = "0b",
            delimiter = "'",
            delimiter_digits = 4,
        }),
    },
})

Here is the error message I received:

E5108: Error executing lua: .../AppData/Local/nvim-data/lazy/dial.nvim/lua/dial/map.lua:49: function dial#operator#increment_normal, line 1: Vim(lua):E5108: Error executing lua ...cal/nvim-data/lazy/dial.nvim/lua/dial/augend/integer.lua:184: attempt to perform arithmetic on local 'd' (a nil value)
stack traceback:
	...cal/nvim-data/lazy/dial.nvim/lua/dial/augend/integer.lua:184: in function 'to_string'
	...cal/nvim-data/lazy/dial.nvim/lua/dial/augend/integer.lua:303: in function 'add'
	...pData/Local/nvim-data/lazy/dial.nvim/lua/dial/handle.lua:208: in function 'operate'
	...Data/Local/nvim-data/lazy/dial.nvim/lua/dial/command.lua:120: in function 'operator_normal'
	[string ":lua"]:1: in main chunk
	[C]: in function 'normal'
	.../AppData/Local/nvim-data/lazy/dial.nvim/lua/dial/map.lua:49: in function 'manipulate'
	C:/Users/alex-/AppData/Local/nvim/lua/plugins/dial.lua:7: in function <C:/Users/alex-/AppData/Local/nvim/lua/plugins/dial.lua:6>
stack traceback:
	[C]: in function 'normal'
	.../AppData/Local/nvim-data/lazy/dial.nvim/lua/dial/map.lua:49: in function 'manipulate'
	C:/Users/alex-/AppData/Local/nvim/lua/plugins/dial.lua:7: in function <C:/Users/alex-/AppData/Local/nvim/lua/plugins/dial.lua:6>

[monaqa]

Thank you for the report.
Please try the latest revision (27eb570).

[alex-tdrn]

It works perfectly for all my usecases now. Thank you so much for the quick fix!