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AnyRule

Struct AnyRule 

Source
pub struct AnyRule {
    pub flow: Vec<Box<dyn for<'a> Fn(&mut State<'a>) -> bool + Send + Sync>>,
    pub out: Box<dyn for<'a> Fn(State<'a>) -> Hit<'a, RuleResult<'a>> + Send + Sync>,
}
Expand description

灵活的规则定义器。

一个规则由一系列的条件流(flow)和一个输出生成器(out)组成。 只有当 flow 中的所有条件都返回 true 时,规则才算命中, 并调用 out 生成最终的 Hit 报告。

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§flow: Vec<Box<dyn for<'a> Fn(&mut State<'a>) -> bool + Send + Sync>>

规则流:一系列依次执行的闭包,可修改 State 并返回是否继续执行。

§out: Box<dyn for<'a> Fn(State<'a>) -> Hit<'a, RuleResult<'a>> + Send + Sync>

结果生成器:当所有 flow 都通过时,将 State 转换为 Hit。

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impl AnyRule

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pub fn new<O>(out: O) -> Self
where O: for<'a> Fn(State<'a>) -> Hit<'a, RuleResult<'a>> + Send + Sync + 'static,

创建一个新的规则,指定命中时的结果生成器。

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pub fn add_flow<F>(self, flow: F) -> Self
where F: for<'a> Fn(&mut State<'a>) -> bool + Send + Sync + 'static,

向规则流中追加一个处理步骤。

可以链式调用。

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pub fn detect<'a>(&self, input: &'a str) -> Option<Hit<'a, RuleResult<'a>>>

针对输入文本执行当前规则。

如果中途有任何一个 flow 返回 false,则返回 None。 否则返回包含提取数据的 Hit。

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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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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

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impl<T> From<T> for T

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fn from(t: T) -> T

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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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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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unsafe fn drop(ptr: usize)

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impl<T, U> TryFrom<U> for T
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type Error = !

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

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