poexam 0.0.9

Blazingly fast PO linter.
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
155
156
157
158
159

// SPDX-FileCopyrightText: 2026 Sébastien Helleu <flashcode@flashtux.org>
//
// SPDX-License-Identifier: GPL-3.0-or-later

//! Implementation of the `pipes` rule: check missing/extra pipes.

use crate::checker::Checker;
use crate::diagnostic::{Diagnostic, Severity};
use crate::po::entry::Entry;
use crate::po::message::Message;
use crate::rules::rule::RuleChecker;

pub struct PipesRule;

impl RuleChecker for PipesRule {
    fn name(&self) -> &'static str {
        "pipes"
    }

    fn is_default(&self) -> bool {
        true
    }

    fn is_check(&self) -> bool {
        true
    }

    fn severity(&self) -> Severity {
        Severity::Info
    }

    /// Check for missing or extra pipes in the translation.
    ///
    /// Wrong entry:
    /// ```text
    /// msgid "syntax: ./test -f|-h|-v"
    /// msgstr "syntaxe : ./test -f|-h"
    /// ```
    ///
    /// Correct entry:
    /// ```text
    /// msgid "syntax: ./test -f|-h|-v"
    /// msgstr "syntaxe : ./test -f|-h|-v"
    /// ```
    ///
    /// Diagnostics reported with severity [`info`](Severity::Info):
    /// - `missing pipes '|' (# / #)`
    /// - `extra pipes '|' (# / #)`
    fn check_msg(
        &self,
        checker: &Checker,
        _entry: &Entry,
        msgid: &Message,
        msgstr: &Message,
    ) -> Vec<Diagnostic> {
        let id_pipes: Vec<_> = msgid
            .value
            .match_indices('|')
            .map(|(idx, value)| (idx, idx + value.len()))
            .collect();
        let str_pipes: Vec<_> = msgstr
            .value
            .match_indices('|')
            .map(|(idx, value)| (idx, idx + value.len()))
            .collect();
        match id_pipes.len().cmp(&str_pipes.len()) {
            std::cmp::Ordering::Greater => {
                vec![
                    self.new_diag(
                        checker,
                        format!(
                            "missing pipes '|' ({} / {})",
                            id_pipes.len(),
                            str_pipes.len()
                        ),
                    )
                    .with_msgs_hl(msgid, &id_pipes, msgstr, &str_pipes),
                ]
            }
            std::cmp::Ordering::Less => {
                vec![
                    self.new_diag(
                        checker,
                        format!("extra pipes '|' ({} / {})", id_pipes.len(), str_pipes.len()),
                    )
                    .with_msgs_hl(msgid, &id_pipes, msgstr, &str_pipes),
                ]
            }
            std::cmp::Ordering::Equal => vec![],
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::{diagnostic::Diagnostic, rules::rule::Rules};

    fn check_pipes(content: &str) -> Vec<Diagnostic> {
        let mut checker = Checker::new(content.as_bytes());
        let rules = Rules::new(vec![Box::new(PipesRule {})]);
        checker.do_all_checks(&rules);
        checker.diagnostics
    }

    #[test]
    fn test_no_pipes() {
        let diags = check_pipes(
            r#"
msgid "tested"
msgstr "testé"
"#,
        );
        assert!(diags.is_empty());
    }

    #[test]
    fn test_pipes_ok() {
        let diags = check_pipes(
            r#"
msgid "tested|here"
msgstr "testé|ici"
"#,
        );
        assert!(diags.is_empty());
    }

    #[test]
    fn test_pipes_error_noqa() {
        let diags = check_pipes(
            r#"
#, noqa:pipes
msgid "tested|"
msgstr "testé"
"#,
        );
        assert!(diags.is_empty());
    }

    #[test]
    fn test_pipes_error() {
        let diags = check_pipes(
            r#"
msgid "tested|"
msgstr "testé"

msgid "tested"
msgstr "testé|"
"#,
        );
        assert_eq!(diags.len(), 2);
        let diag = &diags[0];
        assert_eq!(diag.severity, Severity::Info);
        assert_eq!(diag.message, "missing pipes '|' (1 / 0)");
        let diag = &diags[1];
        assert_eq!(diag.severity, Severity::Info);
        assert_eq!(diag.message, "extra pipes '|' (0 / 1)");
    }
}