Struct regex_syntax::hir::print::Printer [] [src]

pub struct Printer { /* fields omitted */ }

A printer for a regular expression's high-level intermediate representation.

A printer converts a high-level intermediate representation (HIR) to a regular expression pattern string. This particular printer uses constant stack space and heap space proportional to the size of the HIR.

Since this printer is only using the HIR, the pattern it prints will likely not resemble the original pattern at all. For example, a pattern like \pL will have its entire class written out.

The purpose of this printer is to provide a means to mutate an HIR and then build a regular expression from the result of that mutation. (A regex library could provide a constructor from this HIR explicitly, but that creates an unnecessary public coupling between the regex library and this specific HIR representation.)

Methods

impl Printer
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Create a new printer.

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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
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Formats the value using the given formatter. Read more

Auto Trait Implementations

impl Send for Printer

impl Sync for Printer