Module icu_collections::codepointtrie
source · Expand description
This module provides a data structure for an time-efficient lookup of values associated to code points.
It is an implementation of the existing ICU4C UCPTrie / ICU4J CodePointTrie API.
§Architecture
ICU4X CodePointTrie
is designed to provide a read-only view of CodePointTrie
data that is exported
from ICU4C. Detailed information about the design of the data structure can be found in the documentation
for the CodePointTrie
struct.
§Examples
§Querying a CodePointTrie
use icu::collections::codepointtrie::planes;
let trie = planes::get_planes_trie();
assert_eq!(0, trie.get32(0x41)); // 'A' as u32
assert_eq!(0, trie.get32(0x13E0)); // 'Ꮰ' as u32
assert_eq!(1, trie.get32(0x10044)); // '𐁄' as u32
Re-exports§
pub use CodePointTrieError as Error;
Modules§
- cptrie 🔒
- error 🔒Custom error type(s) for the parent module.
- Sample data for
CodePointTrie
that returns the code point’s plane number.
Structs§
- Represents a range of consecutive code points sharing the same value in a code point map. The start and end of the interval is represented as a
RangeInclusive<u32>
, and the value is represented asT
. - A custom
Iterator
type specifically for a code point trie that returnsCodePointMapRange
s. - This struct represents a de-serialized
CodePointTrie
that was exported from ICU binary data. - This struct contains the fixed-length header fields of a
CodePointTrie
.
Enums§
- A custom error type for
CodePointTrie
. - The type of trie represents whether the trie has an optimization that would make it smaller or faster.
Traits§
- A trait representing the values stored in the data array of a
CodePointTrie
. This trait is used as a type parameter in constructing aCodePointTrie
.