Struct NoExpand

pub struct NoExpand<'s>(pub &'s [u8]);

A helper type for forcing literal string replacement.

It can be used with routines like Regex::replace and Regex::replace_all to do a literal string replacement without expanding $name to their corresponding capture groups. This can be both convenient (to avoid escaping $, for example) and faster (since capture groups don’t need to be found).

's is the lifetime of the literal string to use.

Example

use regex::bytes::{NoExpand, Regex};

let re = Regex::new(r"(?<last>[^,\s]+),\s+(\S+)").unwrap();
let result = re.replace(b"Springsteen, Bruce", NoExpand(b"$2 $last"));
assert_eq!(result, &b"$2 $last"[..]);

Tuple Fields

0: &'s [u8]

Trait Implementations

impl<'s> Clone for NoExpand<'s>

fn clone(&self) -> NoExpand<'s>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'s> Debug for NoExpand<'s>

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

Formats the value using the given formatter.

impl<'s> Replacer for NoExpand<'s>

fn replace_append(&mut self, _: &Captures<'_>, dst: &mut Vec<u8>)

Appends possibly empty data to dst to replace the current match.

fn no_expansion(&mut self) -> Option<Cow<'_, [u8]>>

Return a fixed unchanging replacement byte string.

fn by_ref<'r>(&'r mut self) -> ReplacerRef<'r, Self>

Returns a type that implements Replacer, but that borrows and wraps this Replacer.

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: 16 bytes