feat: prepare basic parsers

README.md

@@ -2,6 +2,8 @@
 # Advent-of-Code 2023
 *This is a dumbed down version of [fspoettel/advent-of-code-rust](https://github.com/fspoettel/advent-of-code-rust) with some extra features*
 
+This project targets nightly build of rust, since some preview features are enabled
+
 ## Project overview
 
 ### Project structure

src/lib.rs

@@ -1 +1,4 @@
+#![feature(pattern)]
+
 pub mod template;
+pub mod parsers;

src/parsers.rs

@@ -0,0 +1,20 @@
+use std::str::{pattern::Pattern, FromStr};
+
+pub fn to_vec<'a, T, P>(s: &'a str, pat: P) -> Vec<T>
+where
+    T: FromStr,
+    P: Pattern<'a>,
+{
+    s.split(pat).filter_map(|x| x.parse().ok()).collect()
+}
+
+pub fn to_vec_map<'a, T, U, P>(s: &'a str, pat: P, func: impl FnMut(T) -> U) -> Vec<U>
+where
+    T: FromStr,
+    P: Pattern<'a>,
+{
+    s.split(pat)
+        .filter_map(|x| x.parse().ok())
+        .map(func)
+        .collect()
+}