day 07 in progress. Have data structure skeleton down.

src/day07/fileTree.rs

@@ -0,0 +1,21 @@
+use std::{rc::{Weak, Rc}, cell::RefCell};
+
+#[derive(Debug)]
+pub struct Dir {
+    parent: Option<Weak<RefCell<Dir>>>,
+    name: String,
+    children: Vec<Rc<RefCell<FileOrDir>>>
+}
+
+#[derive(Debug)]
+pub struct File{
+    dir: Weak<RefCell<Dir>>,
+    size: usize,
+    name: String
+}
+
+#[derive(Debug)]
+pub enum FileOrDir{
+    File(File),
+    Dir(Dir),
+}

src/day07/parser.rs

@@ -0,0 +1,155 @@
+use crate::fileTree::*;
+use once_cell::sync::Lazy;
+use regex::Regex;
+
+#[derive(Debug, PartialEq, Eq)]
+pub enum Command {
+    CdRoot,
+    CdUp,
+    Cd(String),
+    Ls(Vec<LsEntry>),
+}
+#[derive(Debug, PartialEq, Eq)]
+pub enum LsEntry {
+    Dir(String),
+    File(ParseFile),
+}
+
+#[derive(Debug, PartialEq, Eq)]
+pub struct ParseFile {
+    size: usize,
+    name: String,
+}
+pub fn parse(input: &str) -> Dir {
+    unimplemented!()
+}
+
+pub fn parse_to_tree(input: Vec<Command>) -> Dir {
+    unimplemented!()
+}
+
+//parses a single line
+pub fn parse_to_commands(input: &str) -> Vec<Command> {
+    static PARSE_COMMAND_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"^$").unwrap());
+    unimplemented!()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    /* #[test]
+    fn test_parse() {
+        let input = "$ cd /
+$ ls
+dir a
+14848514 b.txt
+8504156 c.dat
+dir d
+$ cd a
+$ ls
+dir e
+29116 f
+2557 g
+62596 h.lst
+$ cd e
+$ ls
+584 i
+$ cd ..
+$ cd ..
+$ cd d
+$ ls
+4060174 j
+8033020 d.log
+5626152 d.ext
+7214296 k";
+        assert_eq!(parse(input), 0);
+    } */
+
+    #[test]
+    fn test_parse_to_commands() {
+        let input = "$ cd /
+$ ls
+dir a
+14848514 b.txt
+8504156 c.dat
+dir d
+$ cd a
+$ ls
+dir e
+29116 f
+2557 g
+62596 h.lst
+$ cd e
+$ ls
+584 i
+$ cd ..
+$ cd ..
+$ cd d
+$ ls
+4060174 j
+8033020 d.log
+5626152 d.ext
+7214296 k";
+        assert_eq!(
+            parse_to_commands(input),
+            vec![
+                Command::CdRoot,
+                Command::Ls(vec![
+                    LsEntry::Dir(String::from("a")),
+                    LsEntry::File(ParseFile {
+                        size: 14848514,
+                        name: String::from("b.txt")
+                    }),
+                    LsEntry::File(ParseFile {
+                        size: 8504156,
+                        name: String::from("c.dat")
+                    }),
+                    LsEntry::Dir(String::from("d"))
+                ]),
+                Command::Cd(String::from("a")),
+                Command::Ls(vec![
+                    LsEntry::Dir(String::from("e")),
+                    LsEntry::File(ParseFile {
+                        size: 29116,
+                        name: String::from("f")
+                    }),
+                    LsEntry::File(ParseFile {
+                        size: 2557,
+                        name: String::from("g")
+                    }),
+                    LsEntry::File(ParseFile {
+                        size: 62596,
+                        name: String::from("h.lst")
+                    }),
+                ]),
+                Command::Cd(String::from("e")),
+                Command::Ls(vec![LsEntry::File(ParseFile {
+                    size: 484,
+                    name: String::from("i")
+                }),]),
+                Command::CdUp,
+                Command::CdUp,
+                Command::Cd(String::from("d")),
+                Command::Ls(vec![
+                    LsEntry::File(ParseFile {
+                        size: 4060174,
+                        name: String::from("j")
+                    }),
+                    LsEntry::File(ParseFile {
+                        size: 8033020,
+                        name: String::from("d.log")
+                    }),
+                    LsEntry::File(ParseFile {
+                        size: 5626152,
+                        name: String::from("d.ext")
+                    }),
+                    LsEntry::File(ParseFile {
+                        size: 7214296,
+                        name: String::from("k")
+                    }),
+                ]),
+            ]
+        )
+    }
+}

src/day07/part1.rs

@@ -1,4 +1,5 @@
-use crate::utilities::*;
+use crate::fileTree::*;
+use crate::parser::*;
 
 pub fn part1() -> usize {
     unimplemented!()

src/day07/part2.rs

@@ -1,4 +1,5 @@
-use crate::utilities::*;
+use crate::fileTree::*;
+use crate::parser::*;
 
 pub fn part2() -> usize {
     unimplemented!()

src/day07/solve.rs

@@ -1,10 +1,11 @@
 mod part1;
 mod part2;
-mod utilities;
+mod parser;
+mod fileTree;
 
 fn main() {
     let _input = include_str!("./input.txt");
-    let _structured_input = utilities::parse(_input);
+    let _structured_input = parser::parse(_input);
 
     println!("Part One");
     println!("Result: {}", part1::part1());

src/day07/utilities.rs

@@ -1,16 +0,0 @@
-pub fn parse(input: &str) -> usize {
-    unimplemented!()
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_parse() {
-        let input =
-"test"
-;
-        assert_eq!(parse(input), 0);
-    }
-}