tiny_http/util/
mod.rs

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1pub use self::custom_stream::CustomStream;
2pub use self::equal_reader::EqualReader;
3pub use self::fused_reader::FusedReader;
4pub use self::messages_queue::MessagesQueue;
5pub use self::refined_tcp_stream::RefinedTcpStream;
6pub use self::sequential::{SequentialReader, SequentialReaderBuilder};
7pub use self::sequential::{SequentialWriter, SequentialWriterBuilder};
8pub use self::task_pool::TaskPool;
9
10use std::str::FromStr;
11
12mod custom_stream;
13mod equal_reader;
14mod fused_reader;
15mod messages_queue;
16pub(crate) mod refined_tcp_stream;
17mod sequential;
18mod task_pool;
19
20/// Parses a the value of a header.
21/// Suitable for `Accept-*`, `TE`, etc.
22///
23/// For example with `text/plain, image/png; q=1.5` this function would
24/// return `[ ("text/plain", 1.0), ("image/png", 1.5) ]`
25pub fn parse_header_value(input: &str) -> Vec<(&str, f32)> {
26    input
27        .split(',')
28        .filter_map(|elem| {
29            let mut params = elem.split(';');
30
31            let t = params.next()?;
32
33            let mut value = 1.0_f32;
34
35            for p in params {
36                if p.trim_start().starts_with("q=") {
37                    if let Ok(val) = f32::from_str(p.trim_start()[2..].trim()) {
38                        value = val;
39                        break;
40                    }
41                }
42            }
43
44            Some((t.trim(), value))
45        })
46        .collect()
47}
48
49#[cfg(test)]
50mod test {
51    #[test]
52    #[allow(clippy::float_cmp)]
53    fn test_parse_header() {
54        let result = super::parse_header_value("text/html, text/plain; q=1.5 , image/png ; q=2.0");
55
56        assert_eq!(result.len(), 3);
57        assert_eq!(result[0].0, "text/html");
58        assert_eq!(result[0].1, 1.0);
59        assert_eq!(result[1].0, "text/plain");
60        assert_eq!(result[1].1, 1.5);
61        assert_eq!(result[2].0, "image/png");
62        assert_eq!(result[2].1, 2.0);
63    }
64}
tiny_http/util/mod.rs

tiny_http/util/
mod.rs
