tmux_lib/
session_id.rs

1//! Session Id.
2
3use std::str::FromStr;
4
5use nom::{
6    character::complete::{char, digit1},
7    combinator::all_consuming,
8    sequence::preceded,
9    IResult,
10};
11use serde::{Deserialize, Serialize};
12
13use crate::error::{map_add_intent, Error};
14
15/// The id of a Tmux session.
16///
17/// This wraps the raw tmux representation (`$11`).
18#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
19pub struct SessionId(String);
20
21impl FromStr for SessionId {
22    type Err = Error;
23
24    /// Parse into SessionId. The `&str` must start with '$' followed by a
25    /// `u16`.
26    fn from_str(input: &str) -> std::result::Result<Self, Self::Err> {
27        let desc = "SessionId";
28        let intent = "#{session_id}";
29
30        let (_, sess_id) =
31            all_consuming(parse::session_id)(input).map_err(|e| map_add_intent(desc, intent, e))?;
32
33        Ok(sess_id)
34    }
35}
36
37// impl SessionId {
38//     pub fn as_str(&self) -> &str {
39//         &self.0
40//     }
41// }
42
43pub(crate) mod parse {
44    use super::*;
45
46    pub fn session_id(input: &str) -> IResult<&str, SessionId> {
47        let (input, digit) = preceded(char('$'), digit1)(input)?;
48        let id = format!("${digit}");
49        Ok((input, SessionId(id)))
50    }
51}
52
53#[cfg(test)]
54mod tests {
55    use super::*;
56
57    #[test]
58    fn test_parse_session_id_fn() {
59        let actual = parse::session_id("$43");
60        let expected = Ok(("", SessionId("$43".into())));
61        assert_eq!(actual, expected);
62
63        let actual = parse::session_id("$4");
64        let expected = Ok(("", SessionId("$4".into())));
65        assert_eq!(actual, expected);
66    }
67
68    #[test]
69    fn test_parse_session_id_struct() {
70        let actual = SessionId::from_str("$43");
71        assert!(actual.is_ok());
72        assert_eq!(actual.unwrap(), SessionId("$43".into()));
73
74        let actual = SessionId::from_str("4:38");
75        assert!(matches!(
76            actual,
77            Err(Error::ParseError {
78                desc: "SessionId",
79                intent: "#{session_id}",
80                err: _
81            })
82        ));
83    }
84}
tmux_lib/session_id.rs

tmux_lib/
session_id.rs
