Trait SearchIn 

pub trait SearchIn<'a>: Sized {
    // Required methods
    fn search_in(&self, haystack: &'a str) -> Option<usize>;
    fn rsearch_in(&self, haystack: &'a str) -> Option<usize>;
    fn search_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>;
    fn rsearch_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>;
    fn len(&self) -> usize;

    // Provided methods
    fn is_empty(&self) -> bool { ... }
    fn includes_in(&self, haystack: &'a str) -> bool { ... }
    fn includes_in_ignore_ascii_case(&self, haystack: &'a str) -> bool { ... }
}

search in the haystack

return index of the haystack, if it found the needle. Otherwise return None.

Required Methods

fn search_in(&self, haystack: &'a str) -> Option<usize>

search self in the haystack.

return index of the haystack, if it found self. Otherwise return None.

fn rsearch_in(&self, haystack: &'a str) -> Option<usize>

reverse search self in the haystack.

return index of the haystack, if it found self. Otherwise return None.

fn search_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>

search self in the haystack, ignore ascii case.

return index of the haystack, if it found self. Otherwise return None.

fn rsearch_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>

reverse search self in the haystack, ignore ascii case.

return index of the haystack, if it found self. Otherwise return None.

fn len(&self) -> usize

return the length of self

Provided Methods

fn is_empty(&self) -> bool

true if a length of 0.

fn includes_in(&self, haystack: &'a str) -> bool

includes self in the haystack.

returns true if the given pattern matches a sub-slice of this string slice. returns false if it does not.

fn includes_in_ignore_ascii_case(&self, haystack: &'a str) -> bool

includes self in the haystack, ignore ascii case.

returns true if the given pattern matches a sub-slice of this string slice. returns false if it does not.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<'a> SearchIn<'a> for &str

fn search_in(&self, haystack: &'a str) -> Option<usize>

fn rsearch_in(&self, haystack: &'a str) -> Option<usize>

fn search_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>

fn rsearch_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>

fn len(&self) -> usize

impl<'a> SearchIn<'a> for &String

fn search_in(&self, haystack: &'a str) -> Option<usize>

fn rsearch_in(&self, haystack: &'a str) -> Option<usize>

fn search_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>

fn rsearch_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>

fn len(&self) -> usize

impl<'a> SearchIn<'a> for char

fn search_in(&self, haystack: &'a str) -> Option<usize>

fn rsearch_in(&self, haystack: &'a str) -> Option<usize>

fn search_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>

fn rsearch_in_ignore_ascii_case(&self, haystack: &'a str) -> Option<usize>

fn len(&self) -> usize

Implementors