Struct Printer

pub struct Printer { /* private fields */ }

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.

Implementations

impl Printer

pub fn new() -> Printer

Create a new printer.

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

impl Debug for Printer

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

Formats the value using the given formatter.