In progress, parsing of the Dock is complete

Cargo.toml

@@ -2,7 +2,7 @@
 name = "aoc-vv"
 version = "0.1.0"
 edition = "2021"
-default-run = "p04"
+default-run = "p05"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

etc/p05.txt

@@ -0,0 +1,513 @@
+[H]                 [Z]         [J]
+[L]     [W] [B]     [G]         [R]
+[R]     [G] [S]     [J] [H]     [Q]
+[F]     [N] [T] [J] [P] [R]     [F]
+[B]     [C] [M] [R] [Q] [F] [G] [P]
+[C] [D] [F] [D] [D] [D] [T] [M] [G]
+[J] [C] [J] [J] [C] [L] [Z] [V] [B]
+[M] [Z] [H] [P] [N] [W] [P] [L] [C]
+ 1   2   3   4   5   6   7   8   9 
+
+move 3 from 2 to 1
+move 8 from 6 to 4
+move 4 from 8 to 2
+move 3 from 1 to 9
+move 1 from 2 to 4
+move 3 from 7 to 5
+move 3 from 9 to 2
+move 3 from 3 to 5
+move 1 from 5 to 1
+move 5 from 1 to 8
+move 2 from 1 to 8
+move 3 from 7 to 3
+move 1 from 8 to 9
+move 6 from 9 to 8
+move 3 from 8 to 7
+move 7 from 8 to 9
+move 2 from 5 to 9
+move 2 from 2 to 9
+move 3 from 3 to 7
+move 2 from 8 to 3
+move 7 from 4 to 8
+move 3 from 4 to 1
+move 4 from 8 to 6
+move 4 from 6 to 1
+move 8 from 1 to 2
+move 1 from 1 to 4
+move 3 from 5 to 1
+move 8 from 9 to 8
+move 4 from 3 to 1
+move 5 from 5 to 3
+move 2 from 7 to 1
+move 1 from 7 to 4
+move 1 from 7 to 2
+move 3 from 3 to 5
+move 3 from 9 to 1
+move 9 from 8 to 1
+move 2 from 9 to 7
+move 1 from 8 to 5
+move 4 from 5 to 3
+move 1 from 3 to 4
+move 1 from 9 to 6
+move 1 from 6 to 9
+move 7 from 4 to 9
+move 1 from 7 to 3
+move 1 from 8 to 2
+move 8 from 2 to 1
+move 4 from 3 to 5
+move 2 from 9 to 6
+move 2 from 6 to 2
+move 2 from 4 to 9
+move 8 from 9 to 2
+move 3 from 7 to 9
+move 1 from 3 to 5
+move 2 from 3 to 8
+move 9 from 2 to 1
+move 1 from 8 to 7
+move 4 from 2 to 9
+move 4 from 5 to 6
+move 1 from 8 to 9
+move 27 from 1 to 2
+move 1 from 6 to 4
+move 3 from 6 to 4
+move 7 from 9 to 8
+move 4 from 4 to 1
+move 9 from 2 to 6
+move 2 from 1 to 9
+move 6 from 1 to 3
+move 1 from 5 to 3
+move 3 from 3 to 5
+move 3 from 5 to 3
+move 3 from 3 to 1
+move 4 from 6 to 7
+move 3 from 9 to 2
+move 1 from 6 to 4
+move 4 from 3 to 5
+move 3 from 6 to 5
+move 1 from 6 to 2
+move 15 from 2 to 3
+move 5 from 5 to 9
+move 13 from 3 to 9
+move 2 from 5 to 7
+move 1 from 4 to 2
+move 3 from 3 to 7
+move 11 from 2 to 7
+move 7 from 9 to 5
+move 3 from 5 to 7
+move 6 from 8 to 9
+move 4 from 1 to 2
+move 6 from 1 to 6
+move 3 from 5 to 1
+move 1 from 8 to 2
+move 4 from 2 to 9
+move 1 from 5 to 7
+move 6 from 7 to 6
+move 18 from 7 to 5
+move 1 from 7 to 1
+move 8 from 9 to 5
+move 1 from 2 to 6
+move 15 from 5 to 6
+move 6 from 5 to 3
+move 4 from 3 to 6
+move 26 from 6 to 5
+move 2 from 1 to 7
+move 4 from 5 to 9
+move 8 from 5 to 7
+move 3 from 7 to 9
+move 14 from 9 to 8
+move 7 from 5 to 2
+move 4 from 2 to 1
+move 5 from 1 to 9
+move 12 from 5 to 3
+move 5 from 8 to 5
+move 14 from 3 to 2
+move 1 from 5 to 2
+move 10 from 2 to 6
+move 7 from 9 to 6
+move 6 from 8 to 6
+move 1 from 2 to 7
+move 2 from 9 to 7
+move 2 from 8 to 6
+move 6 from 2 to 7
+move 1 from 1 to 8
+move 15 from 6 to 2
+move 1 from 6 to 9
+move 1 from 5 to 9
+move 1 from 9 to 6
+move 2 from 2 to 4
+move 3 from 9 to 5
+move 5 from 5 to 3
+move 3 from 3 to 6
+move 6 from 2 to 7
+move 1 from 5 to 9
+move 8 from 6 to 9
+move 2 from 6 to 7
+move 3 from 2 to 4
+move 9 from 6 to 7
+move 17 from 7 to 5
+move 1 from 8 to 4
+move 7 from 9 to 3
+move 12 from 5 to 8
+move 3 from 5 to 2
+move 4 from 7 to 8
+move 2 from 5 to 7
+move 1 from 7 to 9
+move 8 from 3 to 7
+move 17 from 7 to 5
+move 3 from 2 to 5
+move 1 from 3 to 6
+move 10 from 5 to 4
+move 5 from 2 to 7
+move 1 from 4 to 2
+move 3 from 9 to 8
+move 7 from 7 to 2
+move 5 from 5 to 1
+move 14 from 4 to 9
+move 3 from 9 to 8
+move 1 from 6 to 9
+move 2 from 1 to 4
+move 2 from 8 to 5
+move 16 from 8 to 6
+move 1 from 6 to 2
+move 11 from 9 to 2
+move 2 from 7 to 5
+move 1 from 1 to 6
+move 11 from 2 to 9
+move 4 from 2 to 8
+move 9 from 5 to 3
+move 1 from 4 to 2
+move 2 from 1 to 8
+move 1 from 2 to 9
+move 2 from 4 to 3
+move 8 from 6 to 9
+move 16 from 9 to 3
+move 16 from 3 to 2
+move 17 from 2 to 6
+move 1 from 9 to 3
+move 1 from 2 to 5
+move 1 from 9 to 4
+move 3 from 2 to 8
+move 1 from 9 to 1
+move 1 from 9 to 6
+move 7 from 3 to 1
+move 5 from 3 to 5
+move 3 from 8 to 3
+move 2 from 3 to 4
+move 6 from 8 to 4
+move 7 from 6 to 4
+move 3 from 6 to 7
+move 3 from 8 to 9
+move 3 from 5 to 2
+move 3 from 1 to 3
+move 1 from 4 to 8
+move 3 from 5 to 1
+move 13 from 4 to 7
+move 14 from 6 to 7
+move 6 from 1 to 9
+move 3 from 9 to 6
+move 1 from 8 to 7
+move 1 from 8 to 7
+move 20 from 7 to 3
+move 1 from 8 to 9
+move 1 from 1 to 9
+move 1 from 1 to 5
+move 1 from 4 to 6
+move 14 from 3 to 9
+move 1 from 2 to 6
+move 3 from 7 to 6
+move 6 from 3 to 2
+move 1 from 3 to 8
+move 2 from 7 to 3
+move 7 from 6 to 3
+move 12 from 3 to 1
+move 1 from 8 to 2
+move 1 from 4 to 9
+move 1 from 5 to 6
+move 1 from 6 to 4
+move 1 from 4 to 2
+move 2 from 2 to 3
+move 16 from 9 to 7
+move 3 from 6 to 7
+move 6 from 9 to 4
+move 4 from 4 to 7
+move 6 from 1 to 8
+move 2 from 3 to 6
+move 3 from 1 to 9
+move 3 from 2 to 3
+move 3 from 3 to 8
+move 5 from 2 to 8
+move 2 from 7 to 8
+move 3 from 1 to 5
+move 1 from 4 to 3
+move 2 from 9 to 8
+move 1 from 6 to 8
+move 2 from 9 to 1
+move 15 from 7 to 1
+move 1 from 6 to 5
+move 10 from 1 to 5
+move 1 from 4 to 1
+move 2 from 1 to 6
+move 9 from 7 to 8
+move 27 from 8 to 3
+move 1 from 6 to 1
+move 1 from 8 to 5
+move 5 from 5 to 6
+move 12 from 3 to 1
+move 3 from 7 to 1
+move 7 from 5 to 1
+move 1 from 6 to 4
+move 3 from 6 to 9
+move 1 from 4 to 2
+move 2 from 6 to 5
+move 1 from 7 to 6
+move 1 from 9 to 2
+move 2 from 5 to 6
+move 2 from 6 to 5
+move 3 from 1 to 3
+move 19 from 3 to 1
+move 2 from 2 to 9
+move 42 from 1 to 7
+move 4 from 9 to 7
+move 1 from 6 to 8
+move 1 from 8 to 5
+move 2 from 1 to 9
+move 3 from 5 to 7
+move 27 from 7 to 4
+move 1 from 1 to 4
+move 3 from 9 to 2
+move 18 from 4 to 9
+move 2 from 5 to 3
+move 1 from 7 to 1
+move 2 from 3 to 4
+move 8 from 7 to 5
+move 15 from 9 to 3
+move 1 from 9 to 7
+move 3 from 7 to 2
+move 2 from 7 to 2
+move 2 from 5 to 3
+move 1 from 1 to 5
+move 1 from 9 to 1
+move 1 from 3 to 1
+move 1 from 4 to 3
+move 8 from 7 to 3
+move 8 from 2 to 4
+move 1 from 9 to 6
+move 23 from 3 to 9
+move 1 from 9 to 6
+move 2 from 6 to 8
+move 1 from 8 to 6
+move 1 from 5 to 3
+move 7 from 4 to 8
+move 7 from 5 to 7
+move 2 from 8 to 3
+move 1 from 1 to 8
+move 3 from 7 to 4
+move 5 from 4 to 3
+move 1 from 1 to 8
+move 3 from 3 to 1
+move 8 from 9 to 7
+move 3 from 8 to 4
+move 1 from 6 to 2
+move 5 from 8 to 7
+move 6 from 3 to 1
+move 1 from 2 to 9
+move 7 from 7 to 9
+move 4 from 1 to 9
+move 2 from 4 to 2
+move 1 from 4 to 9
+move 1 from 1 to 6
+move 8 from 4 to 8
+move 4 from 1 to 5
+move 3 from 5 to 2
+move 2 from 2 to 5
+move 2 from 5 to 6
+move 1 from 3 to 7
+move 2 from 6 to 4
+move 1 from 5 to 7
+move 1 from 6 to 9
+move 1 from 4 to 1
+move 6 from 9 to 2
+move 8 from 9 to 7
+move 4 from 7 to 3
+move 4 from 8 to 3
+move 3 from 8 to 3
+move 8 from 3 to 5
+move 1 from 1 to 7
+move 11 from 9 to 7
+move 5 from 2 to 7
+move 1 from 8 to 1
+move 3 from 2 to 3
+move 1 from 1 to 4
+move 1 from 2 to 5
+move 20 from 7 to 8
+move 7 from 7 to 9
+move 4 from 4 to 7
+move 3 from 9 to 4
+move 5 from 7 to 4
+move 7 from 4 to 7
+move 4 from 9 to 2
+move 1 from 4 to 3
+move 4 from 3 to 5
+move 2 from 5 to 8
+move 4 from 5 to 2
+move 5 from 2 to 6
+move 2 from 6 to 3
+move 22 from 8 to 5
+move 13 from 7 to 9
+move 11 from 9 to 3
+move 2 from 6 to 8
+move 7 from 3 to 1
+move 18 from 5 to 2
+move 1 from 6 to 4
+move 1 from 4 to 9
+move 2 from 8 to 5
+move 2 from 9 to 1
+move 9 from 3 to 1
+move 4 from 5 to 6
+move 2 from 6 to 7
+move 3 from 9 to 5
+move 10 from 5 to 8
+move 6 from 8 to 7
+move 3 from 8 to 1
+move 6 from 2 to 3
+move 1 from 9 to 6
+move 5 from 3 to 4
+move 4 from 1 to 4
+move 17 from 1 to 5
+move 12 from 2 to 7
+move 1 from 3 to 6
+move 16 from 5 to 8
+move 3 from 5 to 6
+move 9 from 8 to 3
+move 8 from 8 to 4
+move 7 from 4 to 1
+move 5 from 1 to 4
+move 4 from 3 to 7
+move 14 from 7 to 3
+move 6 from 4 to 8
+move 9 from 7 to 4
+move 5 from 6 to 1
+move 1 from 7 to 1
+move 1 from 6 to 7
+move 16 from 4 to 5
+move 1 from 4 to 2
+move 1 from 7 to 5
+move 2 from 1 to 7
+move 2 from 7 to 4
+move 4 from 1 to 6
+move 13 from 5 to 6
+move 5 from 6 to 3
+move 22 from 3 to 2
+move 1 from 4 to 7
+move 4 from 5 to 4
+move 1 from 7 to 6
+move 5 from 8 to 5
+move 2 from 3 to 1
+move 13 from 6 to 1
+move 6 from 1 to 4
+move 1 from 8 to 1
+move 6 from 1 to 4
+move 1 from 5 to 4
+move 7 from 4 to 7
+move 3 from 1 to 5
+move 2 from 5 to 7
+move 5 from 5 to 1
+move 8 from 7 to 4
+move 1 from 6 to 4
+move 1 from 7 to 4
+move 9 from 2 to 7
+move 8 from 7 to 6
+move 5 from 6 to 4
+move 1 from 7 to 4
+move 2 from 4 to 9
+move 2 from 6 to 1
+move 8 from 2 to 6
+move 9 from 1 to 8
+move 9 from 6 to 2
+move 1 from 1 to 8
+move 6 from 8 to 4
+move 2 from 9 to 7
+move 2 from 7 to 9
+move 15 from 2 to 8
+move 18 from 4 to 2
+move 14 from 4 to 5
+move 10 from 2 to 4
+move 9 from 2 to 6
+move 1 from 9 to 3
+move 1 from 3 to 1
+move 6 from 5 to 8
+move 3 from 4 to 9
+move 2 from 2 to 1
+move 1 from 1 to 6
+move 3 from 9 to 7
+move 22 from 8 to 6
+move 1 from 8 to 9
+move 2 from 1 to 5
+move 5 from 5 to 4
+move 2 from 5 to 8
+move 2 from 8 to 7
+move 1 from 9 to 7
+move 1 from 5 to 8
+move 1 from 9 to 8
+move 15 from 6 to 4
+move 2 from 5 to 2
+move 11 from 4 to 6
+move 5 from 4 to 1
+move 5 from 4 to 2
+move 2 from 1 to 5
+move 6 from 2 to 8
+move 11 from 6 to 3
+move 12 from 6 to 8
+move 1 from 3 to 9
+move 3 from 3 to 2
+move 6 from 4 to 2
+move 2 from 5 to 8
+move 5 from 7 to 2
+move 11 from 8 to 4
+move 1 from 7 to 4
+move 1 from 9 to 6
+move 7 from 2 to 1
+move 3 from 6 to 5
+move 2 from 5 to 3
+move 1 from 5 to 9
+move 3 from 4 to 9
+move 4 from 9 to 1
+move 4 from 3 to 6
+move 3 from 4 to 8
+move 3 from 8 to 9
+move 2 from 8 to 2
+move 9 from 8 to 7
+move 2 from 3 to 1
+move 2 from 3 to 2
+move 1 from 3 to 6
+move 2 from 9 to 1
+move 8 from 7 to 5
+move 7 from 2 to 7
+move 2 from 8 to 9
+move 4 from 6 to 5
+move 13 from 1 to 5
+move 4 from 1 to 8
+move 3 from 9 to 3
+move 12 from 5 to 9
+move 3 from 8 to 9
+move 1 from 8 to 4
+move 3 from 2 to 7
+move 3 from 3 to 7
+move 1 from 9 to 2
+move 4 from 6 to 4
+move 6 from 5 to 6
+move 2 from 7 to 3
+move 2 from 2 to 1
+move 5 from 6 to 5
+move 1 from 1 to 7
+move 9 from 5 to 4
+move 10 from 9 to 6
+move 1 from 2 to 6
+move 12 from 7 to 6
+move 1 from 7 to 4
+move 23 from 6 to 1
+move 10 from 4 to 3
+move 16 from 1 to 5
+move 5 from 1 to 2
+move 6 from 3 to 7
+move 5 from 4 to 8

src/bin/p05.rs

@@ -0,0 +1,105 @@
+#![feature(iterator_try_collect)]
+
+use std::fs;
+use std::str;
+use std::str::FromStr;
+
+// not that type of crate
+#[derive(Debug, Copy, Clone)]
+struct Crate(char);
+
+impl FromStr for Crate {
+    type Err = &'static str;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        if let Some(c) = s.trim_matches(&['[', ']'] as &[_]).chars().next() {
+            Ok(Crate(c))
+        } else {
+            Err("Expected a character")
+        }
+    }
+}
+
+#[derive(Debug)]
+struct CrateStack(Vec<Crate>);
+
+impl CrateStack {
+    fn new() -> Self {
+        Self(Vec::new())
+    }
+
+    fn push(&mut self, cr: Crate) {
+        self.0.push(cr)
+    }
+
+    fn pop(&mut self) -> Option<Crate> {
+        self.0.pop()
+    }
+}
+
+impl FromStr for CrateStack {
+    type Err = &'static str;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Ok(CrateStack(
+            s.lines().flat_map(|l| l.parse::<Crate>()).collect(),
+        ))
+    }
+}
+
+#[derive(Debug)]
+struct Dock(Vec<CrateStack>);
+
+impl FromStr for Dock {
+    type Err = &'static str;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let rows: Vec<Vec<Option<Crate>>> = s
+            .lines()
+            .rev()
+            .skip(1)
+            .map(|l| {
+                l.as_bytes()
+                    .chunks(4)
+                    .map(|c| str::from_utf8(c).unwrap().trim().parse::<Crate>().ok())
+                    .collect()
+            })
+            .collect();
+        let mut result = Vec::<CrateStack>::new();
+        for row in rows {
+            while row.len() > result.len() {
+                result.push(CrateStack::new())
+            }
+
+            for i in 0..row.len() {
+                if let Some(r) = row[i] {
+                    result[i].push(r);
+                }
+            }
+        }
+        dbg!(&result);
+
+        Ok(Dock(result))
+    }
+}
+
+fn main() {
+    let filename = "etc/p05.txt";
+    let string = fs::read_to_string(filename).expect("Can't open file");
+
+    let dock: Dock = string.split("\n\n").next().expect("first section").parse::<Dock>().expect("can't parse dock");
+    dbg!(dock);
+
+    println!("PART ONE ---------------");
+
+    println!("\n PART TWO ---------------");
+}
+
+fn part1() {}
+
+fn part2() {}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+}