libversion 0.3.2

Advanced version string comparison algorithm
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

// SPDX-FileCopyrightText: Copyright 2024 Dmitry Marakasov <amdmi3@amdmi3.ru>
// SPDX-License-Identifier: Apache-2.0 OR MIT

use std::fs::File;
use std::io::BufReader;
use std::io::prelude::*;

use regex::Regex;

#[derive(Debug)]
pub struct TestCase {
    pub line_number: usize,
    pub text: String,
    pub left_version: String,
    pub left_flags: String,
    pub expected_result: String,
    pub right_flags: String,
    pub right_version: String,
}

pub fn parse_test_suite(path: &str) -> Vec<TestCase> {
    let f = File::open(path).unwrap();
    let reader = BufReader::new(f);

    let mut cases: Vec<TestCase> = Vec::new();

    let re = Regex::new("^\"(.*)\" ([a-z]*)([<>=])([a-z]*) \"(.*)\"$").unwrap();

    for (line_number, line) in reader.lines().map(|line| line.unwrap()).enumerate() {
        if let Some(captures) = re.captures(&line) {
            let (
                _,
                [
                    left_version,
                    left_flags,
                    expected_result,
                    right_flags,
                    right_version,
                ],
            ) = captures.extract();
            cases.push(TestCase {
                line_number: line_number + 1,
                text: line.to_string(),
                left_version: left_version.to_string(),
                left_flags: left_flags.to_string(),
                expected_result: expected_result.to_string(),
                right_flags: right_flags.to_string(),
                right_version: right_version.to_string(),
            });
        }
    }

    cases
}