[−][src]Trait std::str::pattern::Pattern
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
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.
Associated Types
type Searcher: Searcher<'a>
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
Associated searcher for this pattern
Required methods
fn into_searcher(self, haystack: &'a str) -> Self::Searcher
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
Constructs the associated searcher from
self
and the haystack
to search in.
Provided methods
fn is_contained_in(self, haystack: &'a str) -> bool
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
Checks whether the pattern matches anywhere in the haystack
fn is_prefix_of(self, haystack: &'a str) -> bool
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
Checks whether the pattern matches at the front of the haystack
fn is_suffix_of(self, haystack: &'a str) -> bool where
Self::Searcher: ReverseSearcher<'a>,
Self::Searcher: ReverseSearcher<'a>,
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
Checks whether the pattern matches at the back of the haystack
Implementors
impl<'a> Pattern<'a> for char
[src]
Searches for chars that are equal to a given char
type Searcher = CharSearcher<'a>
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
fn into_searcher(self, haystack: &'a str) -> <char as Pattern<'a>>::Searcher
[src]
fn is_contained_in(self, haystack: &'a str) -> bool
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fn is_prefix_of(self, haystack: &'a str) -> bool
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fn is_suffix_of(self, haystack: &'a str) -> bool where
<char as Pattern<'a>>::Searcher: ReverseSearcher<'a>,
[src]
<char as Pattern<'a>>::Searcher: ReverseSearcher<'a>,
impl<'a, 'b> Pattern<'a> for &'b str
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Non-allocating substring search.
Will handle the pattern ""
as returning empty matches at each character
boundary.
type Searcher = StrSearcher<'a, 'b>
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
fn into_searcher(self, haystack: &'a str) -> StrSearcher<'a, 'b>
[src]
fn is_prefix_of(self, haystack: &'a str) -> bool
[src]
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
Checks whether the pattern matches at the front of the haystack
fn is_suffix_of(self, haystack: &'a str) -> bool
[src]
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
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>>::Searcher
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
fn into_searcher(self, haystack: &'a str) -> <&'b str as Pattern<'a>>::Searcher
[src]
fn is_contained_in(self, haystack: &'a str) -> bool
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fn is_prefix_of(self, haystack: &'a str) -> bool
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impl<'a, 'b> Pattern<'a> for &'b [char]
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Searches for chars that are equal to any of the chars in the array
type Searcher = CharSliceSearcher<'a, 'b>
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
fn into_searcher(self, haystack: &'a str) -> CharSliceSearcher<'a, 'b>
[src]
fn is_contained_in(self, haystack: &'a str) -> bool
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fn is_prefix_of(self, haystack: &'a str) -> bool
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fn is_suffix_of(self, haystack: &'a str) -> bool where
CharSliceSearcher<'a, 'b>: ReverseSearcher<'a>,
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CharSliceSearcher<'a, 'b>: ReverseSearcher<'a>,
impl<'a, 'b, 'c> Pattern<'a> for &'c &'b str
[src]
Delegates to the &str
impl.
type Searcher = StrSearcher<'a, 'b>
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
fn into_searcher(self, haystack: &'a str) -> StrSearcher<'a, 'b>
[src]
fn is_contained_in(self, haystack: &'a str) -> bool
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fn is_prefix_of(self, haystack: &'a str) -> bool
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fn is_suffix_of(self, haystack: &'a str) -> bool where
StrSearcher<'a, 'b>: ReverseSearcher<'a>,
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StrSearcher<'a, 'b>: ReverseSearcher<'a>,
impl<'a, F> Pattern<'a> for F where
F: FnMut(char) -> bool,
[src]
F: FnMut(char) -> bool,
Searches for chars that match the given predicate
type Searcher = CharPredicateSearcher<'a, F>
🔬 This is a nightly-only experimental API. (pattern
#27721)
API not fully fleshed out and ready to be stabilized
fn into_searcher(self, haystack: &'a str) -> CharPredicateSearcher<'a, F>
[src]
fn is_contained_in(self, haystack: &'a str) -> bool
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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]
CharPredicateSearcher<'a, F>: ReverseSearcher<'a>,