Crate icu_uniset
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icu_uniset is a utility crate of the ICU4X project.
This API provides necessary functionality for highly efficient querying of sets of Unicode characters.
It is an implementation of the existing ICU4C UnicodeSet API.
Architecture
ICU4X UnicodeSet is split up into independent levels, with UnicodeSet representing the membership/query API,
and UnicodeSetBuilder representing the builder API. A Properties API
is in future works.
Examples:
Creating a UnicodeSet
UnicodeSets are created from either serialized UnicodeSets,
represented by inversion lists,
the UnicodeSetBuilder, or from the TBA Properties API.
use icu_uniset::{UnicodeSet, UnicodeSetBuilder};
let mut builder = UnicodeSetBuilder::new();
builder.add_range(&('A'..'Z'));
let set: UnicodeSet = builder.build();
assert!(set.contains('A'));Querying a UnicodeSet
Currently, you can check if a character/range of characters exists in the UnicodeSet, or iterate through the characters.
use icu_uniset::{UnicodeSet, UnicodeSetBuilder};
let mut builder = UnicodeSetBuilder::new();
builder.add_range(&('A'..'Z'));
let set: UnicodeSet = builder.build();
assert!(set.contains('A'));
assert!(set.contains_range(&('A'..='C')));
assert_eq!(set.iter_chars().next(), Some('A'));Structs
A membership wrapper for UnicodeSet.
A builder for UnicodeSet.
Enums
Custom Errors for UnicodeSet.
Functions
Returns start (inclusive) and end (exclusive) bounds of RangeBounds
Returns whether the vector is sorted ascending non inclusive, of even length,
and within the bounds of 0x0 -> 0x10FFFF inclusive.