pub struct UTF8_TO_CP437 { /* private fields */ }Expand description
A dictionary of 256 elements, mapping selected UTF-8 characters to corresponding CP437
Effectively the inverse of CP437_TO_UTF8
Methods from Deref<Target = IndexMap<char, u8>>§
Sourcepub fn capacity(&self) -> usize
pub fn capacity(&self) -> usize
Return the number of elements the map can hold without reallocating.
This number is a lower bound; the map might be able to hold more, but is guaranteed to be able to hold at least this many.
Computes in O(1) time.
Sourcepub fn len(&self) -> usize
pub fn len(&self) -> usize
Return the number of key-value pairs in the map.
Computes in O(1) time.
Sourcepub fn is_empty(&self) -> bool
pub fn is_empty(&self) -> bool
Returns true if the map contains no elements.
Computes in O(1) time.
Sourcepub fn iter(&self) -> Iter<'_, K, V>
pub fn iter(&self) -> Iter<'_, K, V>
Return an iterator over the key-value pairs of the map, in their order
Sourcepub fn keys(&self) -> Keys<'_, K, V>
pub fn keys(&self) -> Keys<'_, K, V>
Return an iterator over the keys of the map, in their order
Sourcepub fn values(&self) -> Values<'_, K, V>
pub fn values(&self) -> Values<'_, K, V>
Return an iterator over the values of the map, in their order
Sourcepub fn contains_key<Q>(&self, key: &Q) -> bool
pub fn contains_key<Q>(&self, key: &Q) -> bool
Return true if an equivalent to key exists in the map.
Computes in O(1) time (average).
Sourcepub fn get<Q>(&self, key: &Q) -> Option<&V>
pub fn get<Q>(&self, key: &Q) -> Option<&V>
Return a reference to the value stored for key, if it is present,
else None.
Computes in O(1) time (average).
Sourcepub fn get_key_value<Q>(&self, key: &Q) -> Option<(&K, &V)>
pub fn get_key_value<Q>(&self, key: &Q) -> Option<(&K, &V)>
Return references to the key-value pair stored for key,
if it is present, else None.
Computes in O(1) time (average).
Sourcepub fn get_index_of<Q>(&self, key: &Q) -> Option<usize>
pub fn get_index_of<Q>(&self, key: &Q) -> Option<usize>
Return item index, if it exists in the map
Computes in O(1) time (average).
Sourcepub fn binary_search_keys(&self, x: &K) -> Result<usize, usize>where
K: Ord,
pub fn binary_search_keys(&self, x: &K) -> Result<usize, usize>where
K: Ord,
Search over a sorted map for a key.
Returns the position where that key is present, or the position where it can be inserted to
maintain the sort. See slice::binary_search for more details.
Computes in O(log(n)) time, which is notably less scalable than looking the key up
using get_index_of, but this can also position missing keys.
Sourcepub fn binary_search_by<'a, F>(&'a self, f: F) -> Result<usize, usize>
pub fn binary_search_by<'a, F>(&'a self, f: F) -> Result<usize, usize>
Search over a sorted map with a comparator function.
Returns the position where that value is present, or the position where it can be inserted
to maintain the sort. See slice::binary_search_by for more details.
Computes in O(log(n)) time.
Sourcepub fn binary_search_by_key<'a, B, F>(
&'a self,
b: &B,
f: F,
) -> Result<usize, usize>
pub fn binary_search_by_key<'a, B, F>( &'a self, b: &B, f: F, ) -> Result<usize, usize>
Search over a sorted map with an extraction function.
Returns the position where that value is present, or the position where it can be inserted
to maintain the sort. See slice::binary_search_by_key for more details.
Computes in O(log(n)) time.
Sourcepub fn partition_point<P>(&self, pred: P) -> usize
pub fn partition_point<P>(&self, pred: P) -> usize
Returns the index of the partition point of a sorted map according to the given predicate (the index of the first element of the second partition).
See slice::partition_point for more details.
Computes in O(log(n)) time.
Sourcepub fn as_slice(&self) -> &Slice<K, V>
pub fn as_slice(&self) -> &Slice<K, V>
Returns a slice of all the key-value pairs in the map.
Computes in O(1) time.
Sourcepub fn get_index(&self, index: usize) -> Option<(&K, &V)>
pub fn get_index(&self, index: usize) -> Option<(&K, &V)>
Get a key-value pair by index
Valid indices are 0 <= index < self.len().
Computes in O(1) time.