pretty

Struct BoxDoc

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pub struct BoxDoc<'a, A = ()>(/* private fields */);

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impl<'a, A> BoxDoc<'a, A>

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pub fn new(doc: Doc<'a, BoxDoc<'a, A>, A>) -> BoxDoc<'a, A>

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impl<'a, A> BoxDoc<'a, A>

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pub fn nil() -> Self

An empty document.

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pub fn hardline() -> Self

A single hardline.

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pub fn space() -> Self

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pub fn fail() -> Self

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impl<'a, A> BoxDoc<'a, A>

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pub fn line() -> Self

A line acts like a \n but behaves like space if it is grouped on a single line.

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pub fn line_() -> Self

Acts like line but behaves like nil if grouped on a single line

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impl<'a, A> BoxDoc<'a, A>

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pub fn as_string<U: Display>(data: U) -> Self

The text t.to_string().

The given text must not contain line breaks.

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pub fn text<U: Into<Cow<'a, str>>>(data: U) -> Self

The given text, which must not contain line breaks.

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pub fn append<D>(self, that: D) -> Self
where D: Pretty<'a, BoxAllocator, A>,

Append the given document after this document.

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pub fn concat<I>(docs: I) -> Self
where I: IntoIterator, I::Item: Pretty<'a, BoxAllocator, A>,

A single document concatenating all the given documents.

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pub fn intersperse<I, S>(docs: I, separator: S) -> Self
where I: IntoIterator, I::Item: Pretty<'a, BoxAllocator, A>, S: Pretty<'a, BoxAllocator, A> + Clone, A: Clone,

A single document interspersing the given separator S between the given documents. For example, if the documents are [A, B, C, ..., Z], this yields [A, S, B, S, C, S, ..., S, Z].

Compare the intersperse method from the itertools crate.

NOTE: The separator type, S may need to be cloned. Consider using cheaply cloneable ptr like RefDoc or RcDoc

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pub fn flat_alt<D>(self, doc: D) -> Self
where D: Pretty<'a, BoxAllocator, A>,

Acts as self when laid out on multiple lines and acts as that when laid out on a single line.

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pub fn group(self) -> Self

Mark this document as a group.

Groups are layed out on a single line if possible. Within a group, all basic documents with several possible layouts are assigned the same layout, that is, they are all layed out horizontally and combined into a one single line, or they are each layed out on their own line.

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pub fn nest(self, offset: isize) -> Self

Increase the indentation level of this document.

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pub fn annotate(self, ann: A) -> Self

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pub fn union<D>(self, other: D) -> Self
where D: Into<BuildDoc<'a, Self, A>>,

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pub fn softline() -> Self

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pub fn softline_() -> Self

A softline_ acts like nil if the document fits the page, otherwise like line_

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pub fn column(f: impl Fn(usize) -> Self + 'static) -> Self

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pub fn nesting(f: impl Fn(usize) -> Self + 'static) -> Self

Methods from Deref<Target = Doc<'a, BoxDoc<'a, A>, A>>§

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pub fn render<W>(&self, width: usize, out: &mut W) -> Result<()>
where W: ?Sized + Write,

Writes a rendered document to a std::io::Write object.

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pub fn render_fmt<W>(&self, width: usize, out: &mut W) -> Result
where W: ?Sized + Write,

Writes a rendered document to a std::fmt::Write object.

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pub fn render_raw<W>(&self, width: usize, out: &mut W) -> Result<(), W::Error>
where for<'b> W: RenderAnnotated<'b, A> + ?Sized,

Writes a rendered document to a RenderAnnotated<A> object.

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pub fn pretty<'d>(&'d self, width: usize) -> PrettyFmt<'a, 'd, T, A>

Returns a value which implements std::fmt::Display

use pretty::{Doc, BoxDoc};
let doc = BoxDoc::<()>::group(
    BoxDoc::text("hello").append(Doc::line()).append(Doc::text("world"))
);
assert_eq!(format!("{}", doc.pretty(80)), "hello world");

Trait Implementations§

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impl<'a, A: Clone> Clone for BoxDoc<'a, A>

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fn clone(&self) -> BoxDoc<'a, A>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a, A> Debug for BoxDoc<'a, A>
where A: Debug,

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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<'a, A> Deref for BoxDoc<'a, A>

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type Target = Doc<'a, BoxDoc<'a, A>, A>

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<'a, A> DocPtr<'a, A> for BoxDoc<'a, A>

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type ColumnFn = Rc<dyn Fn(usize) -> BoxDoc<'a, A> + 'a>

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type WidthFn = Rc<dyn Fn(isize) -> BoxDoc<'a, A> + 'a>

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impl<'a, A> From<BoxDoc<'a, A>> for BuildDoc<'a, BoxDoc<'a, A>, A>

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fn from(s: BoxDoc<'a, A>) -> Self

Converts to this type from the input type.
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impl<'a, A> From<Doc<'a, BoxDoc<'a, A>, A>> for BoxDoc<'a, A>

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fn from(doc: Doc<'a, BoxDoc<'a, A>, A>) -> BoxDoc<'a, A>

Converts to this type from the input type.
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impl<'a, A> Pretty<'a, BoxAllocator, A> for BoxDoc<'a, A>
where A: 'a,

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fn pretty(self, allocator: &'a BoxAllocator) -> DocBuilder<'a, BoxAllocator, A>

Converts self into a document
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impl<'a, A> StaticDoc<'a, A> for BoxDoc<'a, A>

Auto Trait Implementations§

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impl<'a, A> Freeze for BoxDoc<'a, A>

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impl<'a, A = ()> !RefUnwindSafe for BoxDoc<'a, A>

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impl<'a, A = ()> !Send for BoxDoc<'a, A>

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impl<'a, A = ()> !Sync for BoxDoc<'a, A>

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impl<'a, A> Unpin for BoxDoc<'a, A>

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impl<'a, A = ()> !UnwindSafe for BoxDoc<'a, A>

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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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.