rugyoga

import AOC
import String, only: [split: 2, to_integer: 1]
import Enum, only: [map: 2, max: 1, product: 1, reduce: 3, sum: 1, zip_with: 2]

aoc 2023, 2 do
  def parse_game(line) do
    ["Game " <> id, hands] = split(line, ": ")
    {to_integer(id), hands |> split("; ") |> map(&parse_hand/1)}
  end

rugyoga

import AOC

aoc 2023, 1 do
  @moduledoc """
  https://adventofcode.com/2023/day/1
  """

  def calibration(input) do
    input
    |> String.split("", trim: true)

rugyoga

/* stackless version */

var flatten = function(head) {
        const first = head;
        var stack = null;
        while (head != null) {
            if (head.child != null) {
                if (head.next != null) {
                    head.next.prev = stack;
                    stack = head.next;

rugyoga

defmodule Tree do
  alias __MODULE__
  use Audit

  defstruct left: nil, item: nil, right: nil, __audit_trail__: nil

  def add(nil, item), do: %Tree{item: item}
  def add(tree = %Tree{left: l, item: i, right: r}, item) do
      cond do
      item < i -> %Tree{audit(tree) | left: add(l, item)}

rugyoga

iex> nil |> Tree.add(2) |> Tree.add(1) |> Tree.add(3) |> Audit.to_string() |> IO.puts
github url: https://github.com/rugyoga/tree_ex/tree/main/lib/tree.ex#L15
local path: lib/tree.ex:15
code: item > i -> %Tree{audit(tree) | right: add(r, item)}
diff: [{[:right], {:add, %Tree{item: 3, left: nil, right: nil}}}]
=====
github url: https://github.com/rugyoga/tree_ex/tree/main/lib/tree.ex#L14
local path: lib/tree.ex:14
code: item < i -> %Tree{audit(tree) | left: add(l, item)}
diff: [{[:left], {:add, %Tree{item: 1, left: nil, right: nil}}}]

rugyoga

defmodule Audit.Github do
  @moduledoc """
  Helper functions for generating Github URLs from filename and line number
  """

  @type line_number_t :: binary | non_neg_integer()
  @type filename_t :: binary()
  @type git_t :: binary() | nil

  @spec git([binary()]) :: git_t()

rugyoga

defmodule Audit.FileCache do
  @moduledoc """
  Simple File cache Agent
  """
  use Agent

  def start_link(_args) do
    Agent.start_link(fn -> %{} end, name: __MODULE__)
  end

rugyoga

def to_string(r) do
  r
  |> changelist()
  |> Enum.map_join("\n=====\n", &stringify_change/1)
end
  
@spec changelist(term) :: [change_t()]
defp changelist(r = %_{__audit_trail__: audit_trail}) do
  if audit_trail, do: [{r, audit_trail} | changelist(record(audit_trail))], else: []
end

rugyoga

  @spec changelist(term) :: [change_t()]
  defp changelist(r = %_{__audit_trail__: audit_trail}) do
    if audit_trail, do: [{r, audit_trail} | changelist(record(audit_trail))], else: []
  end

  defp changelist(_), do: []

rugyoga

defmacro audit(record) do
  quote generated: true do
    unquote(__MODULE__).audit_fun(unquote(record), __ENV__)
  end
end