Struct Parser

pub struct Parser { /* private fields */ }

A regular expression parser.

This parses a string representation of a regular expression into an abstract syntax tree. The size of the tree is proportional to the length of the regular expression pattern.

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

Implementations

impl Parser

pub fn new() -> Parser

Create a new parser with a default configuration.

The parser can be run with either the parse or parse_with_comments methods. The parse methods return an abstract syntax tree.

To set configuration options on the parser, use ParserBuilder.

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

Parse the regular expression into an abstract syntax tree.

pub fn parse_with_comments( &mut self, pattern: &str, ) -> Result<WithComments, Error>

Parse the regular expression and return an abstract syntax tree with all of the comments found in the pattern.

Trait Implementations

impl Clone for Parser

fn clone(&self) -> Parser

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Parser

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

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 200 bytes