1 files changed, 20 insertions, 0 deletions
diff --git a/src/opt.rs b/src/opt.rs
new file mode 100644
index 0000000..296ea83
--- /dev/null
+++ b/src/opt.rs
@@ -0,0 +1,20 @@
+#[derive(Debug, structopt::StructOpt)]
+#[structopt(about = "Advent of Code")]
+pub struct Opt {
+    pub day: u8,
+    pub puzzle: u8,
+}
+
+#[macro_export]
+macro_rules! day {
+    ($year:expr, $day:expr, $puzzle:expr, $mod:ident) => {{
+        let data = $mod::parse(parse::data($year, $day)?)?;
+        match $puzzle {
+            1 => println!("{}", $mod::part1(data)?),
+            2 => println!("{}", $mod::part2(data)?),
+            _ => {
+                panic!("unknown puzzle {} for day {}", $puzzle, $day)
+            }
+        }
+    }};
+}