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CronExpr

Struct CronExpr 

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pub struct CronExpr {
    pub seconds: Option<CronField>,
    pub minutes: CronField,
    pub hours: CronField,
    pub dom: CronField,
    pub month: CronField,
    pub dow: CronField,
}
Expand description

A parsed cron expression (5-field or 6-field with seconds).

§Example

use tpt_cron_parse::CronExpr;

let expr = CronExpr::parse("0 9 * * 1").unwrap();
assert_eq!(expr.to_human_readable(), "Every Monday at 9:00 AM");

Fields§

§seconds: Option<CronField>

Seconds field — Some for 6-field cron, None for 5-field.

§minutes: CronField

Minutes field.

§hours: CronField

Hours field.

§dom: CronField

Day-of-month field.

§month: CronField

Month field.

§dow: CronField

Day-of-week field.

Implementations§

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impl CronExpr

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pub fn parse(s: &str) -> Result<CronExpr, CronError>

Parse a cron expression string (5-field or 6-field).

§Example
use tpt_cron_parse::CronExpr;

let expr = CronExpr::parse("*/5 * * * *").unwrap();
assert_eq!(expr.to_human_readable(), "Every 5 minutes");
Examples found in repository?
examples/crontab.rs (line 8)
7fn main() {
8    let expr = CronExpr::parse("0 9 * * 1-5").expect("valid cron expression");
9    println!("Parsed as 6-field cron: {}", expr.is_6_field());
10    println!("Human readable: {}", expr.to_human_readable());
11}
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pub fn is_6_field(&self) -> bool

Returns true if this is a 6-field cron expression (with seconds).

Examples found in repository?
examples/crontab.rs (line 9)
7fn main() {
8    let expr = CronExpr::parse("0 9 * * 1-5").expect("valid cron expression");
9    println!("Parsed as 6-field cron: {}", expr.is_6_field());
10    println!("Human readable: {}", expr.to_human_readable());
11}
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pub fn to_human_readable(&self) -> String

Convert this cron expression to a human-readable English description.

§Example
use tpt_cron_parse::CronExpr;

assert_eq!(CronExpr::parse("* * * * *").unwrap().to_human_readable(), "Every minute");
assert_eq!(CronExpr::parse("0 * * * *").unwrap().to_human_readable(), "Every hour");
assert_eq!(CronExpr::parse("0 9 * * *").unwrap().to_human_readable(), "Every day at 9:00 AM");
assert_eq!(CronExpr::parse("0 0 1 1 *").unwrap().to_human_readable(), "At 12:00 AM on January 1st");
Examples found in repository?
examples/crontab.rs (line 10)
7fn main() {
8    let expr = CronExpr::parse("0 9 * * 1-5").expect("valid cron expression");
9    println!("Parsed as 6-field cron: {}", expr.is_6_field());
10    println!("Human readable: {}", expr.to_human_readable());
11}

Trait Implementations§

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impl Clone for CronExpr

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fn clone(&self) -> CronExpr

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CronExpr

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Eq for CronExpr

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impl PartialEq for CronExpr

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fn eq(&self, other: &CronExpr) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for CronExpr

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.