aoc-parse 0.2.18

A little library for parsing your Advent of Code puzzle input
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154

use aoc_parse::{parser, prelude::*};

#[test]
fn day1() {
    let input = "199\n200\n208\n210\n";
    let p = parser!(lines(u64));
    assert_eq!(p.parse(input).unwrap(), vec![199, 200, 208, 210]);
}

#[test]
fn day2() {
    let input = "\
forward 5
down 5
forward 8
up 3
down 8
forward 2
";

    #[derive(Debug, PartialEq)]
    enum Command {
        Forward(u64),
        Down(u64),
        Up(u64),
    }

    let p = parser!(lines({
        "down " n:u64 => Command::Down(n),
        "up " n:u64 => Command::Up(n),
        "forward " n:u64 => Command::Forward(n),
    }));

    use Command::*;
    assert_eq!(
        p.parse(input).unwrap(),
        vec![Forward(5), Down(5), Forward(8), Up(3), Down(8), Forward(2)],
    );
}

#[test]
fn day3() {
    let input = "\
00100
11110
10110
10111
10101
";
    let p = parser!(lines(u32_bin));
    assert_eq!(
        p.parse(input).unwrap(),
        vec![0b00100, 0b11110, 0b10110, 0b10111, 0b10101],
    );
}

#[test]
fn day5() {
    let input = "\
0,9 -> 5,9
8,0 -> 0,8
9,4 -> 3,4
2,2 -> 2,1
";

    #[derive(Debug, PartialEq)]
    struct Line {
        x1: usize,
        y1: usize,
        x2: usize,
        y2: usize,
    }

    let p = parser!(
        lines(
            x1:usize ',' y1:usize " -> " x2:usize ',' y2:usize
                => Line { x1, y1, x2, y2 }
        )
    );
    assert_eq!(
        p.parse(input).unwrap(),
        vec![
            Line {
                x1: 0,
                y1: 9,
                x2: 5,
                y2: 9
            },
            Line {
                x1: 8,
                y1: 0,
                x2: 0,
                y2: 8
            },
            Line {
                x1: 9,
                y1: 4,
                x2: 3,
                y2: 4
            },
            Line {
                x1: 2,
                y1: 2,
                x2: 2,
                y2: 1
            },
        ],
    );
}

#[test]
fn day6() {
    let input = "3,4,3,1,2\n";
    let p = parser!(line(repeat_sep(usize, ',')));
    assert_eq!(p.parse(input).unwrap(), vec![3usize, 4, 3, 1, 2]);
}

#[test]
fn day7() {
    let input = "16,1,2,0,4,2,7,1,2,14\n";
    let p = parser!(line(repeat_sep(i64, ',')));
    assert_eq!(
        p.parse(input).unwrap(),
        vec![16, 1, 2, 0, 4, 2, 7, 1, 2, 14],
    );
}

#[test]
fn day8() {
    let input = "\
be cfbegad cbdgef fgaecd cgeb fdcge agebfd fecdb fabcd edb | fdgacbe cefdb cefbgd gcbe
edbfga begcd cbg gc gcadebf fbgde acbgfd abcde gfcbed gfec | fcgedb cgb dgebacf gc
fgaebd cg bdaec gdafb agbcfd gdcbef bgcad gfac gcb cdgabef | cg cg fdcagb cbg
fbegcd cbd adcefb dageb afcb bc aefdc ecdab fgdeca fcdbega | efabcd cedba gadfec cb
";
    let segment = parser!(
        s:char_of("abcdefg")+
            => s.into_iter().map(|i| 1u8 << i).sum::<u8>()
    );
    let p = parser!(lines(
        repeat_sep(segment, " ") " | " repeat_sep(segment, " ")
    ));

    assert_eq!(
        p.parse(input).unwrap()[2],
        (
            vec![
                0b1111011, 0b1000100, 0b0011111, 0b1101011, 0b1101111, 0b1111110, 0b1001111,
                0b1100101, 0b1000110, 0b1111111
            ],
            vec![0b1000100, 0b1000100, 0b1101111, 0b1000110],
        ),
    );
}