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#[derive(Debug, Clone)]
pub struct Filter {
// TODO: Maybe change to "ignore_matches"?
pub is_list_ignored: bool,
pub list: Vec<regex::Regex>,
}
impl Filter {
/// Whether the filter should keep the entry or reject it.
#[inline]
pub(crate) fn keep_entry(&self, value: &str) -> bool {
if self.list.iter().any(|regex| regex.is_match(value)) {
// If a match is found, then if we wanted to ignore if we match, return false. If we want
// to keep if we match, return true. Thus, return the inverse of `is_list_ignored`.
!self.is_list_ignored
} else {
self.is_list_ignored
}
}
}
#[cfg(test)]
mod test {
use regex::Regex;
use super::*;
/// Test based on the issue in <https://github.com/ClementTsang/bottom/pull/1037>.
#[test]
fn filter_is_list_ignored() {
let results = [
"CPU socket temperature",
"wifi_0",
"motherboard temperature",
"amd gpu",
];
let ignore_true = Filter {
is_list_ignored: true,
list: vec![Regex::new("temperature").unwrap()],
};
assert_eq!(
results
.into_iter()
.filter(|r| ignore_true.keep_entry(r))
.collect::<Vec<_>>(),
vec!["wifi_0", "amd gpu"]
);
let ignore_false = Filter {
is_list_ignored: false,
list: vec![Regex::new("temperature").unwrap()],
};
assert_eq!(
results
.into_iter()
.filter(|r| ignore_false.keep_entry(r))
.collect::<Vec<_>>(),
vec!["CPU socket temperature", "motherboard temperature"]
);
let multi_true = Filter {
is_list_ignored: true,
list: vec![
Regex::new("socket").unwrap(),
Regex::new("temperature").unwrap(),
],
};
assert_eq!(
results
.into_iter()
.filter(|r| multi_true.keep_entry(r))
.collect::<Vec<_>>(),
vec!["wifi_0", "amd gpu"]
);
let multi_false = Filter {
is_list_ignored: false,
list: vec![
Regex::new("socket").unwrap(),
Regex::new("temperature").unwrap(),
],
};
assert_eq!(
results
.into_iter()
.filter(|r| multi_false.keep_entry(r))
.collect::<Vec<_>>(),
vec!["CPU socket temperature", "motherboard temperature"]
);
}
}
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