Crate ezemoji

ezemoji

ezemoji is a lightweight Rust library for working with Unicode character groups, including letters, numbers, symbols, and emojis. It is always no_std and stores all data as &'static [u32], making it suitable for embedded and minimal runtime environments.

Usage

You can use the predefined character groups, or define your own custom groups.

Using predefined groups

#[cfg(feature = "std")]
use ezemoji::{CharGroup, GroupKind};

// Iterate over lowercase alphabet characters
let alpha_group = CharGroup::ALPHALOW;
for cp in alpha_group.iter() {
    // Print the Unicode code point
    println!("{}", cp);
}

// Access a numeric group and check display width
let num_group = CharGroup::NUM;
assert_eq!(num_group.width(), 1); // ASCII numbers are single-width

Defining your own custom group

use ezemoji::{CharGroup, GroupKind, CharWidth, MultiRange};

// Create a new custom group of just crab emojis
let crab_group = CharGroup::new(GroupKind::Custom("crab"), MultiRange::new(&[0x1F980..0x1F981]), CharWidth::Double);
assert_eq!(crab_group.width(), 2); // This emoji is double-width

Structs

CharGroup

A named group of Unicode characters.

MultiRange

MultiRangeIterator

Enums

CharWidth

GroupKind

Constants

ALPHALOW_RANGE

ALPHANUM_RANGE

ALPHAUP_RANGE

ARROW_0_RANGE

ARROW_1_RANGE

ARROW_2_RANGE

BIN_RANGE

BRAILLE_RANGE

CARD_0_RANGE

CARD_1_RANGE

CARD_2_RANGE

CARD_3_RANGE

CLOCK_RANGE

CRAB_RANGE

DOMINOSH_RANGE

DOMINOSV_RANGE

EARTH_RANGE

EMOJIS_0_RANGE

EMOJIS_1_RANGE

EMOJIS_2_RANGE

JAP_RANGE

LARGELETTERS_RANGE

LETTEREDCUBES_RANGE

MOON_RANGE

NUMBEREDBALLS_RANGE

NUM_RANGE

PLANTS_RANGE

SHAPES_RANGE

SMILE_RANGE