1 files changed, 39 insertions, 0 deletions
diff --git a/18/src/main.rs b/18/src/main.rs
new file mode 100644
index 0000000..53554a2
--- /dev/null
+++ b/18/src/main.rs
@@ -0,0 +1,39 @@
+use advent_lib::prelude::*;
+
+//use std::convert::TryFrom;
+
+#[macro_use] extern crate lalrpop_util;
+
+lalrpop_mod!(pub expression);
+
+
+
+fn main() -> Result<()> {
+  let mut args = std::env::args();
+  if args.len() != 2 {
+    eprintln!("Usage: advent input");
+  }
+  let _ = args.next();
+  let filename = args.next().unwrap();
+
+  let input = advent_lib::read_lines_file(&filename)?;
+
+  let parser = expression::ExpressionParser::new();
+  let parser_pro = expression::ExpressionProParser::new();
+
+  let mut sum = 0;
+  let mut sum_pro = 0;
+
+  for line in &input {
+    let value = parser.parse(line)?;
+    sum += value;
+
+    let value_pro = parser_pro.parse(line)?;
+    sum_pro += value_pro;
+  }
+
+  println!("{}", sum);
+  println!("{}", sum_pro);
+
+  Ok(())
+}