From 6f1199f3d25dde4c04cc278b465083857e83d6a5 Mon Sep 17 00:00:00 2001
From: Daniel Flanagan <daniel@lyte.dev>
Date: Tue, 12 Dec 2023 10:43:43 -0600
Subject: [PATCH] Parsing successfully

---
 2023/rust/src/day5.rs | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/2023/rust/src/day5.rs b/2023/rust/src/day5.rs
index 734c534..3769054 100644
--- a/2023/rust/src/day5.rs
+++ b/2023/rust/src/day5.rs
@@ -3,7 +3,7 @@ use std::collections::HashMap;
 extern crate nom;
 use nom::{
     branch::alt,
-    bytes::complete::{tag, take_while},
+    bytes::complete::{tag, take_until, take_while},
     character::complete::{line_ending, newline, space1},
     combinator::{map_res, value},
     multi::separated_list0,
@@ -80,11 +80,10 @@ fn mapping(input: &str) -> IResult<&str, Mapping> {
 }
 
 fn mapping_entry(input: &str) -> IResult<&str, (LayerDir, Vec<Mapping>)> {
-    // TODO: this is probably confusing my parser since the newline separator would need to lookahead?
     let (input, (from, _, to, _)) = tuple((layer, tag("-to-"), layer, tag(" map:\n")))(input)?;
-    // take while here
+    let (rest, input) = take_until("\n\n")(input)?;
     let (input, mappings) = separated_list0(newline, mapping)(input)?;
-    Ok((input, (LayerDir { from, to }, mappings)))
+    Ok((rest, (LayerDir { from, to }, mappings)))
 }
 
 fn almanac(input: &str) -> IResult<&str, Almanac> {