Struct regex_syntax::Parser

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

A convenience parser for regular expressions.

This parser takes as input a regular expression pattern string (the “concrete syntax”) and returns a high-level intermediate representation (the HIR) suitable for most types of analysis. In particular, this parser hides the intermediate state of producing an AST (the “abstract syntax”). The AST is itself far more complex than the HIR, so this parser serves as a convenience for never having to deal with it at all.

If callers have more fine grained use cases that need an AST, then please see the ast::parse module.

A Parser can be configured in more detail via a ParserBuilder.

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impl Parser

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pub fn new() -> Parser

Create a new parser with a default configuration.

The parser can be run with parse method. The parse method returns a high level intermediate representation of the given regular expression.

To set configuration options on the parser, use ParserBuilder.

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pub fn parse(&mut self, pattern: &str) -> Result<Hir>

Parse the regular expression into a high level intermediate representation.

Trait Implementations§

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impl Clone for Parser

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fn clone(&self) -> Parser

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 Debug for Parser

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl !RefUnwindSafe for Parser

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impl Send for Parser

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impl !Sync for Parser

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impl Unpin for Parser

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impl UnwindSafe for Parser

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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,

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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 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

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere 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 Twhere 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 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.