From e65699f8d37e4d4b069afad55f2d22bfa271d101 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?William=20Herg=C3=A8s?= Date: Sat, 8 Nov 2025 23:31:59 +0100 Subject: feat(calc): use rational number for abitrary precision --- lib/elixir_math_parser.ex | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'lib/elixir_math_parser.ex') diff --git a/lib/elixir_math_parser.ex b/lib/elixir_math_parser.ex index bb24d88..f7f916f 100644 --- a/lib/elixir_math_parser.ex +++ b/lib/elixir_math_parser.ex @@ -3,8 +3,11 @@ defmodule ElixirMathParser do Documentation for `ElixirMathParser`. """ + defdelegate numerator <~> denominator, to: Ratio, as: :new + use Numbers, overload_operators: true + defp reduce_to_value({:int, _line, value}, _state) do - {:ok, value} + {:ok, value <~> 1} end defp reduce_to_value({:var, _line, var}, state) do @@ -51,7 +54,14 @@ defmodule ElixirMathParser do defp evaluate_tree([{:eval, expr} | tail], state) do with {:ok, expr} <- reduce_to_value(expr, state) do - IO.puts(expr) + num = Ratio.numerator(expr) + den = Ratio.denominator(expr) + + case den do + 1 -> IO.puts(num) + _ -> IO.puts("#{num}/#{den}") + end + evaluate_tree(tail, state) end end -- cgit v1.2.3