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day 8 part 1 fixed, regex is slow af to compile... dont do that in a loop.

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This commit is contained in:
RingOfStorms (Joshua Bell) 2023-12-08 01:20:59 -06:00
parent e4ab3fb81e
commit cab03a2ed5
3 changed files with 45 additions and 5 deletions
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14
src/bin/day8.rs
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@ -2,12 +2,16 @@ use aoc23::prelude::*;
use derive_builder::Builder;
use itertools::Itertools;
use rayon::prelude::*;
use std::{collections::HashMap, str::FromStr, time::Instant};
use std::{collections::HashMap, time::Instant};
extern crate regex;
use regex::Regex;
use std::error::Error;
use static_init::dynamic;
#[dynamic]
static RE_PARSE_NODE: Regex =
Regex::new(r"(?<id>\w{3}).*?(?<left>\w{3}).*?(?<right>\w{3})").expect("re_parse_node invalid");
#[derive(Debug, Builder, Clone)]
struct Node<'a> {
@ -18,9 +22,9 @@ struct Node<'a> {
impl<'a> Node<'a> {
fn new(s: &'a str) -> Result<Self> {
let re = Regex::new(r"(?<id>\w{3}).*?(?<left>\w{3}).*?(?<right>\w{3})")?
.captures(s)
.expect("No match for regex");
// let re = Regex::new(r"(?`<id>`\w{3}) = ((?`<left>`\w{3}), (?`<right>`\w{3}))")?
// let re = Regex::new(r"(?`<id>`\w{3})._?(?`<left>`\w{3})._?(?`<right>`\w{3})")?
let re = RE_PARSE_NODE.captures(s).expect("No match for regex");
Ok(NodeBuilder::default()
.id(re.name("id").expect("no id").as_str())
.left(re.name("left").expect("no left").as_str())