Struct regex_syntax::ast::print::Printer

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pub struct Printer { /* private fields */ }
Expand description

A printer for a regular expression abstract syntax tree.

A printer converts an abstract syntax tree (AST) to a regular expression pattern string. This particular printer uses constant stack space and heap space proportional to the size of the AST.

This printer will not necessarily preserve the original formatting of the regular expression pattern string. For example, all whitespace and comments are ignored.

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impl Printer

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pub fn new() -> Printer

Create a new printer.

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pub fn print<W: Write>(&mut self, ast: &Ast, wtr: W) -> Result

Print the given Ast to the given writer. The writer must implement fmt::Write. Typical implementations of fmt::Write that can be used here are a fmt::Formatter (which is available in fmt::Display implementations) or a &mut String.

Trait Implementations§

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impl Debug for Printer

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere 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> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source§

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, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.