current approach for day 4

this does not work yet

.gitignore

@@ -1,3 +1,5 @@
 /target
-/data
+/data/**/*.txt
+!/data/2023/01a.txt
+!/data/2023/01b.txt
 !/data/20*/.gitkeep

Cargo.lock

@@ -3,14 +3,15 @@
 version = 4
 
 [[package]]
-name = "adventofcode"
+name = "advent-of-code"
 version = "0.1.0"
 dependencies = [
- "adventofcode-macros",
+ "advent-of-code-macros",
+ "regex",
 ]
 
 [[package]]
-name = "adventofcode-macros"
+name = "advent-of-code-macros"
 version = "0.1.0"
 dependencies = [
  "proc-macro2",
@@ -18,6 +19,21 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "aho-corasick"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "memchr"
+version = "2.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.92"
@@ -36,6 +52,35 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "regex"
+version = "1.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
+
 [[package]]
 name = "syn"
 version = "2.0.90"

Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "adventofcode"
+name = "advent-of-code"
 version = "0.1.0"
 edition = "2021"
 description = "My solutions for Advent of code 2024"
@@ -310,9 +310,13 @@ name = "advent_of_code"
 
 [dependencies]
 
-[dependencies.adventofcode-macros]
+[dependencies.advent-of-code-macros]
 path = "macros"
 
+[dependencies.regex]
+version = "1.11.*"
+features = []
+
 [workspace]
 
 [workspace.dependencies]

data/2023/01a.txt

@@ -0,0 +1 @@
+01.txt

data/2023/01b.txt

@@ -0,0 +1 @@
+01.txt

macros/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "adventofcode-macros"
+name = "advent-of-code-macros"
 version = "0.1.0"
 edition = "2021"
 
@@ -8,5 +8,8 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.*"
-syn = "2.0.*"
 proc-macro2 = {version = "*", features = ["span-locations"]}
+
+[dependencies.syn]
+version = ">=2.0.90"
+features = ["full"]

macros/src/lib.rs

@@ -1,101 +1,87 @@
 use std::fs;
 
 use proc_macro::TokenStream;
-use quote::quote;
+use quote::{format_ident, quote};
+use syn::{parse, Result};
 use syn::{
-    buffer::Cursor,
-    parse::{Parse, ParseStream, StepCursor},
-    Error,
+    parse::{Parse, ParseStream},
+    spanned::Spanned,
+    Error, Ident, Lit, LitInt,
 };
-use syn::{parse, LitInt, Result};
 
 const DATA_DIR: &str = "data";
 const EXAMPLE_DIR: &str = "examples";
+const VAR_NAME: &str = "DATA";
 
 #[derive(Debug, Clone)]
 struct IncludeData {
-    year: String,
-    day: String,
+    var: String,
+    year: Option<String>,
+    day: Option<String>,
 }
 
-fn get_string<'a, 'b>(cursor: StepCursor<'a, 'b>) -> Result<(String, Cursor<'a>)> {
-    let (lit, c) = match cursor.literal() {
-        Some(literal) => literal,
-        None => return Err(Error::new(cursor.span(), "Failed to get literal")),
-    };
-    let span = lit.span();
-    let text = match span.source_text() {
-        Some(text) => text,
+impl Default for IncludeData {
+    fn default() -> Self {
+        IncludeData {
+            var: VAR_NAME.into(),
+            year: None,
+            day: None,
+        }
+    }
+}
+
+fn get_text<T: Spanned>(item: T) -> Result<String> {
+    let span = item.span();
+    match span.source_text() {
+        Some(text) => Ok(text),
         None => {
             let start = span.start();
             let end = span.end();
-            return Err(Error::new(
+            Err(Error::new(
                 span,
                 format!(
                     "Failed to get sourcetext for {}:{}-{}:{}",
                     start.line, start.column, end.line, end.column,
                 ),
-            ));
+            ))
         }
-    };
-    Ok((text, c))
+    }
 }
 
 impl Parse for IncludeData {
     fn parse(input: ParseStream) -> Result<Self> {
-        let mut data = IncludeData {
-            year: "".into(),
-            day: "".into(),
-        };
-        let mut look = input.lookahead1();
-        if !look.peek(LitInt) {
-            let s = input.span();
-            return Err(Error::new(
-                s,
-                format!("{} is not an valid Year", s.source_text().unwrap()),
-            ));
+        let mut data = IncludeData::default();
+        if input.peek(Ident) && !input.peek(LitInt) {
+            data.var = get_text(input.parse::<Ident>().unwrap())?;
         }
-        data.year = input.step(get_string).expect("Wanted an string");
-        look = input.lookahead1();
-        if !look.peek(LitInt) {
-            let s = input.span();
-            return Err(Error::new(
-                s,
-                format!("{} is not an valid Day", s.source_text().unwrap()),
-            ));
-        }
-        data.day = input.step(get_string).expect("Wanted an string");
+        data.year = Some(get_text(input.parse::<LitInt>()?)?);
+        data.day = Some(get_text(input.parse::<Lit>()?)?);
+
         Ok(data)
     }
 }
 
-fn canonicalize(dir: &str, input: Result<IncludeData>) -> Option<String> {
-    let pathname = match input {
-        Ok(id) => Some(format!("{}/{}/{}.txt", dir, id.year, id.day)),
-        Err(_) => None,
-    };
-    if let Some(p) = pathname {
-        match fs::canonicalize(p.clone()) {
-            Ok(canon) => {
-                if canon.is_file() {
-                    Some(canon.to_str().unwrap().to_string())
-                } else {
-                    println!("ERROR: {:?} is not a file", canon);
-                    None
+fn canonicalize(dir: &str, input: IncludeData) -> Option<String> {
+    let pathname = format!("{}/{}/{}.txt", dir, input.year.unwrap(), input.day.unwrap());
+    match fs::canonicalize(pathname) {
+        Ok(canon) => {
+            if canon.is_file() {
+                match canon.to_str() {
+                    Some(c) => Some(c.to_string()),
+                    None => None,
                 }
-            }
-            Err(err) => {
-                println!("ERROR: {} does not exist: {}", p, err);
+            } else {
                 None
             }
         }
-    } else {
-        None
+        Err(_) => None,
     }
 }
 
 /// includes Data from Advent of code
 /// ```ignore (cannot-doctest-external-file-dependency)
+/// include_data!(DATA 2015 01)
+/// // or
 /// include_data!(2015 01)
 ///
 /// fn main() {
@@ -108,33 +94,73 @@ fn canonicalize(dir: &str, input: Result<IncludeData>) -> Option<String> {
 /// ```
 #[proc_macro]
 pub fn include_data(data: TokenStream) -> TokenStream {
-    let input = parse::<IncludeData>(data);
-    let mut path = canonicalize(DATA_DIR, input.clone());
-    if path.is_none() {
-        path = canonicalize(EXAMPLE_DIR, input)
-    }
-    match path {
-        Some(p) => quote! {
-            static DATA: &str = include_str!(#p);
+    let input = match parse::<IncludeData>(data) {
+        Ok(include) => include,
+        Err(error) => return error.into_compile_error().into(),
+    };
+    let ident = format_ident!("{}", input.var);
+    let mut comment: String;
+    if input.day.is_some() && input.year.is_some() {
+        comment = "Data from the data dir".into();
+        let mut path = canonicalize(DATA_DIR, input.clone());
+        if path.is_none() {
+            comment = "Data from the examples".into();
+            path = canonicalize(EXAMPLE_DIR, input)
         }
-        .into(),
-        None => quote! {
-            static DATA: &str = "";
+        match path {
+            Some(p) => {
+                return quote! {
+                    #[doc = #comment]
+                    const #ident: &str = include_str!(#p).trim_ascii();
+                }
+                .into()
+            }
+            None => comment = "failed to get data from the paths".into(),
         }
-        .into(),
+    } else {
+        comment = format!(
+            "Failed to get the year({:?}) or day({:?}) falling back to default",
+            input.year, input.day
+        );
     }
+    quote! {
+        #[doc = #comment]
+        const #ident: &str = "";
+    }
+    .into()
 }
 
+/// Same as include_data!, but it only gets data from the example directory.
+/// This is useful for testing the examples, even when Data from the AOC is available
 #[proc_macro]
 pub fn include_example(data: TokenStream) -> TokenStream {
-    match canonicalize(EXAMPLE_DIR, parse::<IncludeData>(data)) {
-        Some(p) => quote! {
-            static DATA: &str = include_str!(#p);
+    let input = match parse::<IncludeData>(data) {
+        Ok(include) => include,
+        Err(error) => return error.into_compile_error().into(),
+    };
+    let ident = format_ident!("{}", input.var);
+    let mut comment: String;
+    if input.day.is_some() && input.year.is_some() {
+        comment = "Data from the Example dir".into();
+        match canonicalize(EXAMPLE_DIR, input.clone()) {
+            Some(p) => {
+                return quote! {
+                    #[doc = #comment]
+                    const #ident: &str = include_str!(#p).trim_ascii();
+                }
+                .into()
+            }
+            None => comment = "failed to get data from the path".into(),
         }
-        .into(),
-        None => quote! {
-            static DATA: &str = "";
-        }
-        .into(),
+    } else {
+        comment = format!(
+            "Failed to get the year({:?}) or day({:?}) falling back to default",
+            input.year, input.day
+        );
     }
+    quote! {
+        #[doc = #comment]
+        const #ident: &str = "";
+    }
+    .into()
 }

src/bin/2023/01.rs

@@ -1,14 +1,13 @@
 use advent_of_code::strings::{get_numbers, get_string_numbers};
 #[allow(unused_imports)]
-use adventofcode_macros::{include_example, include_example};
+use advent_of_code_macros::{include_data, include_example};
 
-include_example!(2023 01);
-//static DATA: &str;
+include_data!(DATAa 2023 01a);
+include_data!(DATAb 2023 01b);
 
 fn main() {
     let mut sum: u32 = 0;
-    let data: String = DATA.into();
-    for coordinates in data.split('\n').map(get_numbers) {
+    for coordinates in DATAa.split('\n').map(get_numbers) {
         if coordinates.len() == 0 {
             continue;
         }
@@ -20,7 +19,7 @@ fn main() {
     }
     println!("Sum of Numbers {}", sum);
     sum = 0;
-    for coordinates in data.split('\n').map(get_string_numbers) {
+    for coordinates in DATAb.split('\n').map(get_string_numbers) {
         if coordinates.len() == 0 {
             continue;
         }

src/bin/2023/02.rs

@@ -1,9 +1,8 @@
 use advent_of_code::strings::parsenumber;
 #[allow(unused_imports)]
-use adventofcode_macros::{include_example, include_example};
+use advent_of_code_macros::{include_data, include_example};
 
-include_example!(2023 02);
-//static DATA: &str;
+include_example!(DATA 2023 02);
 
 #[derive(Debug, Clone, Copy)]
 struct Take {
@@ -43,17 +42,23 @@ impl Round {
         ok
     }
     fn power(&self) -> u64 {
-        let mut sack = Sack{reds:0, greens:0, blues:0};
+        let mut sack = Sack {
+            reds: 0,
+            greens: 0,
+            blues: 0,
+        };
         for take in self.takes.clone() {
             if take.red > sack.reds {
                 sack.reds = take.red
-            }if take.green > sack.greens {
+            }
+            if take.green > sack.greens {
                 sack.greens = take.green
-            }if take.blue > sack.blues {
+            }
+            if take.blue > sack.blues {
                 sack.blues = take.blue
             }
         }
-        sack.reds as u64 *sack.greens as u64*sack.blues as u64
+        sack.reds as u64 * sack.greens as u64 * sack.blues as u64
     }
 }
 

src/bin/2024/01.rs

@@ -1,8 +1,8 @@
 use advent_of_code::strings::{parsenumber, splitspace};
 #[allow(unused_imports)]
-use adventofcode_macros::{include_data, include_example};
+use advent_of_code_macros::{include_data, include_example};
 
-include_data!(2024 01);
+include_data!(DATA 2024 01);
 
 fn distance(leftlist: &Vec<u32>, rightlist: &Vec<u32>) -> u32 {
     let mut distance = 0;

src/bin/2024/02.rs

@@ -2,9 +2,9 @@ use std::fmt::Display;
 
 use advent_of_code::strings::parsenumber;
 #[allow(unused_imports)]
-use adventofcode_macros::{include_data, include_example};
+use advent_of_code_macros::{include_data, include_example};
 
-include_data!(2024 02);
+include_data!(DATA 2024 02);
 
 fn get_numbers(input: &str) -> Vec<u32> {
     input.split(char::is_whitespace).map(parsenumber).collect()

src/bin/2024/03.rs

@@ -0,0 +1,42 @@
+use advent_of_code::strings::parsenumber;
+#[allow(unused_imports)]
+use advent_of_code_macros::{include_data, include_example};
+use regex::{Captures, Regex};
+
+include_data!(DATA 2024 03);
+
+fn main() {
+    let part1re = Regex::new(r"mul\((?<i>\d{1,3}),(?<j>\d{1,3})\)").unwrap();
+    let multiplies: Vec<(u32, u32)> = part1re
+        .captures_iter(DATA)
+        .map(|capture| {
+            let i = capture.name("i").unwrap().as_str();
+            let j = capture.name("j").unwrap().as_str();
+            let a = parsenumber(i);
+            let b = parsenumber(j);
+            (a, b)
+        })
+        .collect();
+    let mut sum = 0;
+    for (i, j) in multiplies {
+        sum += i * j;
+    }
+    println!("The Cleaned output is: {}", sum);
+    let part2re = Regex::new(r"(mul\((?<i>\d{1,3}),(?<j>\d{1,3})\)|do\(\)|don't\(\))").unwrap();
+    let inputs: Vec<Captures<'_>> = part2re.captures_iter(DATA).collect();
+    let mut parse = true;
+    let mut sum = 0;
+    for capture in inputs {
+        match (capture.get(1).unwrap().as_str(), parse) {
+            ("do()", _) => parse = true,
+            ("don't()", _) => parse = false,
+            (_, true) => {
+                let a = parsenumber(capture.name("i").unwrap().as_str());
+                let b = parsenumber(capture.name("j").unwrap().as_str());
+                sum += a * b
+            }
+            (_, _) => {}
+        }
+    }
+    println!("The Cleaned with check output is: {}", sum);
+}

src/bin/2024/04.rs

@@ -0,0 +1,78 @@
+#[allow(unused_variables)]
+use std::ops::RangeInclusive;
+
+#[allow(unused_imports)]
+use advent_of_code_macros::{include_data, include_example};
+
+include_data!(DATA 2024 04);
+
+#[derive(Debug, Clone)]
+enum Direction {
+    Forward(usize, usize),
+    Backward(usize, usize),
+}
+
+impl Direction {
+    fn iter(&self) -> RangeInclusive<usize> {
+        let (from, to) = match self {
+            Direction::Forward(from, to) => (from, to),
+            Direction::Backward(to, from) => (from, to),
+        };
+        *from..=*to
+    }
+}
+
+fn main() {
+    let table: Vec<Vec<char>> = DATA
+        .split('\n')
+        .map(|line| line.chars().collect())
+        .collect();
+    let length = table[0].len();
+    let mut xmas;
+    let mut amount = 0;
+    let directions = [
+        Direction::Forward(0, length - 1),
+        Direction::Backward(0, length - 1),
+    ];
+    for r in directions.clone() {
+        for c in directions.clone() {
+            println!("Horizontal: {:?}, vertical: {:?}", r.clone(), c.clone());
+            for row in r.iter() {
+                xmas = 0;
+                for column in c.iter() {
+                    println!(
+                        "Row {}, Column {}, dir {:?} {:?}",
+                        row,
+                        column,
+                        r.clone(),
+                        c.clone()
+                    );
+                    match (xmas, table[row][column]) {
+                        (_x, 'X') => {
+                            xmas = 1;
+                            //println!("Found X, previous was {}", _x)
+                        }
+                        (1, 'M') => {
+                            xmas = 2;
+                            //println!("Found XM")
+                        }
+                        (2, 'A') => {
+                            xmas = 3;
+                            //println!("Found XMA")
+                        }
+                        (3, 'S') => {
+                            xmas = 0;
+                            amount += 1;
+                            //println!("found XMAS in {}:{}", row, column);
+                        }
+                        (_x, _ch) => {
+                            xmas = 0;
+                            //println!("Reset, was {}({})", _x, _ch)
+                        }
+                    }
+                }
+            }
+        }
+    }
+    println!("There are {} XMAS in text", amount);
+}