86 lines
2.6 KiB
Rust
86 lines
2.6 KiB
Rust
use std::fs;
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pub fn run_day3(){
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let contents = fs::read_to_string("input.txt")
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.expect("Could not load file");
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let part_one_result = part_one(&contents);
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}
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struct SymbolPosition<'a> {
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x: usize,
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y: usize,
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char_map: &'a Vec<Vec<char>>
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}
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impl SymbolPosition<'_> {
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fn explore_neighbours(&self) -> Vec<i32>{
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let mut found_numbers: Vec<i32> = Vec::new();
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let neighbours: [SymbolPosition; 8] = [
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SymbolPosition{x: self.x - 1, y: self.y - 1, char_map: self.char_map},
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SymbolPosition{x: self.x , y: self.y - 1, char_map: self.char_map},
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SymbolPosition{x: self.x + 1, y: self.y - 1, char_map: self.char_map},
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SymbolPosition{x: self.x - 1, y: self.y , char_map: self.char_map},
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SymbolPosition{x: self.x + 1, y: self.y , char_map: self.char_map},
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SymbolPosition{x: self.x - 1, y: self.y + 1, char_map: self.char_map},
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SymbolPosition{x: self.x , y: self.y + 1, char_map: self.char_map},
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SymbolPosition{x: self.x + 1, y: self.y + 1, char_map: self.char_map},
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];
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for neighbour in neighbours{
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if neighbour.is_digit(){
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println!("Quack");
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found_numbers.push(neighbour.find_full_number())
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}
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}
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found_numbers
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}
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fn is_digit(&self)->bool{
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let self_char = &*match self.char_map.get(self.y) {
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None => "".to_string(),
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Some(char_vec) => match char_vec.get(self.x) {
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None => "".to_string(),
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Some(char) => char.to_string()
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}
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};
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regex::Regex::new(r"\d")
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.unwrap()
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.is_match(self_char)
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}
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fn find_full_number(self)->i32{
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// Implement searching for a full number, mainly traverse the
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// self.y position in the char_map forwards and backwards until
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// we find the end of the vec, or a non digit character. Preserving
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// order.
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0
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}
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}
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fn part_one(contents: &String)-> i32{
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let mut char_map: Vec<Vec<char>> = Vec::new();
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let mut symbols: Vec<SymbolPosition> = Vec::new();
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for line in contents.lines(){
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let line_vec: Vec<char> = line.chars().collect();
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char_map.push(line_vec);
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}
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for (y, line) in char_map.iter().enumerate(){
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for (x, current_char) in line.iter().enumerate(){
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let non_digit = regex::Regex::new(r"[^\w.]").unwrap();
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if non_digit.is_match(¤t_char.to_string()){
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symbols.push(SymbolPosition{x, y , char_map: &char_map})
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}
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}
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}
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symbols[0].explore_neighbours();
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0
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}
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