Expand description
Unicode string slices.
See also the str
primitive type.
The &str
type is one of the two main string types, the other being String
.
Unlike its String
counterpart, its contents are borrowed.
Basic Usage
A basic string declaration of &str
type:
let hello_world = "Hello, World!";
RunHere we have declared a string literal, also known as a string slice.
String literals have a static lifetime, which means the string hello_world
is guaranteed to be valid for the duration of the entire program.
We can explicitly specify hello_world
’s lifetime as well:
let hello_world: &'static str = "Hello, world!";
RunModules
The string Pattern API.
Structs
An iterator over the bytes of a string slice.
An iterator over the char
s of a string slice, and their positions.
An iterator of u16
over the string encoded as UTF-16.
The return type of str::escape_debug
.
The return type of str::escape_default
.
The return type of str::escape_unicode
.
An iterator over the lines of a string, as string slices.
Created with the method match_indices
.
An error returned when parsing a bool
using from_str
fails
Created with the method rmatch_indices
.
Created with the method rsplit_terminator
.
An iterator over the non-ASCII-whitespace substrings of a string, separated by any amount of ASCII whitespace.
An iterator over the substrings of a string,
terminated by a substring matching to a predicate function
Unlike Split
, it contains the matched part as a terminator
of the subslice.
Created with the method split_terminator
.
An iterator over the non-whitespace substrings of a string, separated by any amount of whitespace.
Traits
Parse a value from a string
Functions
Converts a boxed slice of bytes to a boxed string slice without checking that the string contains valid UTF-8.
Converts a slice of bytes to a string slice.
Converts a mutable slice of bytes to a mutable string slice.
Converts a slice of bytes to a string slice without checking that the string contains valid UTF-8.
Converts a slice of bytes to a string slice without checking that the string contains valid UTF-8; mutable version.