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HeadingLine

Struct HeadingLine 

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pub struct HeadingLine {
    pub level: usize,
    pub status: Option<HeadingToken<TaskType>>,
    pub priority: Option<HeadingToken<Priority>>,
    pub title_start: usize,
}
Expand description

A heading line as it sits in a file, located token by token.

This is the read half of an editing operation and the reason it lives here rather than in the editor: the keyword and cookie grammars are the ones the extractor itself applies, and a second copy of them would drift. Writing — assembling a line back from parts — is deliberately not part of this crate.

Unlike Task, which carries the heading the agenda displays, nothing is summarised here. A heading may hold text between the keyword and the cookie (# TODO leftover [#B] Title): the agenda keeps that text and shows the cookie inside it, and title_start points at the text rather than past the cookie, so an editor rewriting the title neither swallows the cookie nor moves it. Replacing the cookie itself is what priority is for — its range addresses the cookie where the user wrote it.

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§level: usize

Heading level, i.e. the number of leading # characters (1 to 6).

§status: Option<HeadingToken<TaskType>>

The TODO / DONE / CANCELLED / CANCELED keyword, when present.

§priority: Option<HeadingToken<Priority>>

The [#A] priority cookie, when present and within the accepted range.

§title_start: usize

Byte offset the title starts at, past the tokens above and the whitespace after them. Also where a caller inserts a token the heading does not carry yet. A cookie away from its canonical place counts as part of the title, so the offset stops before it.

Trait Implementations§

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impl Clone for HeadingLine

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fn clone(&self) -> HeadingLine

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 HeadingLine

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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 PartialEq for HeadingLine

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fn eq(&self, other: &HeadingLine) -> 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 HeadingLine

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

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Gets the TypeId of self. Read more
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where T: ?Sized,

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impl<T> BorrowMut<T> for T
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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
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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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fn from(t: T) -> T

Returns the argument unchanged.

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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Calls U::from(self).

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const ALIGN: usize

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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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Dereferences the given pointer. Read more
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Drops the object pointed to by the given pointer. Read more
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type Owned = T

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Uses borrowed data to replace owned data, usually by cloning. Read more
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type Error = Infallible

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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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