pub trait Pattern<'a> { type Searcher: Searcher<'a>; fn into_searcher(self, haystack: &'a str) -> Self::Searcher; fn is_contained_in(self, haystack: &'a str) -> bool { ... } fn is_prefix_of(self, haystack: &'a str) -> bool { ... } fn is_suffix_of(self, haystack: &'a str) -> bool where Self::Searcher: ReverseSearcher<'a>, { ... } }
A string pattern.
A Pattern<'a> expresses that the implementing type can be used as a string pattern for searching in a &'a str.
For example, both 'a' and "aa" are patterns that would match at index 1 in the string "baaaab".
The trait itself acts as a builder for an associated Searcher type, which does the actual work of finding occurrences of the pattern in a string.
type Searcher: Searcher<'a>Associated searcher for this pattern
fn into_searcher(self, haystack: &'a str) -> Self::SearcherConstructs the associated searcher from self and the haystack to search in.
fn is_contained_in(self, haystack: &'a str) -> boolChecks whether the pattern matches anywhere in the haystack
fn is_prefix_of(self, haystack: &'a str) -> boolChecks whether the pattern matches at the front of the haystack
fn is_suffix_of(self, haystack: &'a str) -> bool where
Self::Searcher: ReverseSearcher<'a>, Checks whether the pattern matches at the back of the haystack
impl<'a> Pattern<'a> for char[src]
Searches for chars that are equal to a given char
type Searcher = CharSearcher<'a>fn into_searcher(self, haystack: &'a str) -> <char as Pattern<'a>>::Searcher[src]
fn is_contained_in(self, haystack: &'a str) -> bool[src]
fn is_prefix_of(self, haystack: &'a str) -> bool[src]
fn is_suffix_of(self, haystack: &'a str) -> bool where
<char as Pattern<'a>>::Searcher: ReverseSearcher<'a>, [src]
impl<'a, 'b> Pattern<'a> for &'b str[src]
Non-allocating substring search.
Will handle the pattern "" as returning empty matches at each character boundary.
type Searcher = StrSearcher<'a, 'b>fn into_searcher(self, haystack: &'a str) -> StrSearcher<'a, 'b>[src]
fn is_prefix_of(self, haystack: &'a str) -> bool[src]
Checks whether the pattern matches at the front of the haystack
fn is_suffix_of(self, haystack: &'a str) -> bool[src]
Checks whether the pattern matches at the back of the haystack
impl<'a, 'b> Pattern<'a> for &'b String[src]
A convenience impl that delegates to the impl for &str
type Searcher = <&'b str as Pattern<'a>>::Searcherfn into_searcher(self, haystack: &'a str) -> <&'b str as Pattern<'a>>::Searcher[src]
fn is_contained_in(self, haystack: &'a str) -> bool[src]
fn is_prefix_of(self, haystack: &'a str) -> bool[src]
impl<'a, 'b> Pattern<'a> for &'b [char][src]
Searches for chars that are equal to any of the chars in the array
type Searcher = CharSliceSearcher<'a, 'b>fn into_searcher(self, haystack: &'a str) -> CharSliceSearcher<'a, 'b>[src]
fn is_contained_in(self, haystack: &'a str) -> bool[src]
fn is_prefix_of(self, haystack: &'a str) -> bool[src]
fn is_suffix_of(self, haystack: &'a str) -> bool where
CharSliceSearcher<'a, 'b>: ReverseSearcher<'a>, [src]
impl<'a, 'b, 'c> Pattern<'a> for &'c &'b str[src]
Delegates to the &str impl.
type Searcher = StrSearcher<'a, 'b>fn into_searcher(self, haystack: &'a str) -> StrSearcher<'a, 'b>[src]
fn is_contained_in(self, haystack: &'a str) -> bool[src]
fn is_prefix_of(self, haystack: &'a str) -> bool[src]
fn is_suffix_of(self, haystack: &'a str) -> bool where
StrSearcher<'a, 'b>: ReverseSearcher<'a>, [src]
impl<'a, F> Pattern<'a> for F where
F: FnMut(char) -> bool, [src]
Searches for chars that match the given predicate
type Searcher = CharPredicateSearcher<'a, F>fn into_searcher(self, haystack: &'a str) -> CharPredicateSearcher<'a, F>[src]
fn is_contained_in(self, haystack: &'a str) -> bool[src]
fn is_prefix_of(self, haystack: &'a str) -> bool[src]
fn is_suffix_of(self, haystack: &'a str) -> bool where
CharPredicateSearcher<'a, F>: ReverseSearcher<'a>, [src]
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/str/pattern/trait.Pattern.html