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Create reusable line reader

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This commit is contained in:
Bert Peters
2021-12-02 08:34:14 +01:00
parent c9468ba139
commit ed844a997c
2 changed files with 35 additions and 22 deletions
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14
2021/src/day02.rs
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@@ -1,7 +1,7 @@
use std::io::BufRead;
use std::io::BufReader;
use std::io::Read;
use crate::common::LineIter;
enum Dir {
Up,
Down,
@@ -9,13 +9,11 @@ enum Dir {
}
fn parse_input(input: &mut dyn Read) -> Vec<(Dir, i32)> {
let mut reader = BufReader::new(input);
let mut buffer = String::new();
let mut reader = LineIter::new(input);
let mut moves = Vec::new();
while matches!(reader.read_line(&mut buffer), Ok(n) if n > 0) {
let (dir, amount) = buffer.trim().split_once(" ").unwrap();
while let Some(line) = reader.next() {
let (dir, amount) = line.split_once(" ").unwrap();
let dir = match dir {
"up" => Dir::Up,
@@ -25,8 +23,6 @@ fn parse_input(input: &mut dyn Read) -> Vec<(Dir, i32)> {
};
moves.push((dir, amount.parse().unwrap()));
buffer.clear();
}
moves