dale-chall

The New Dale-Chall (1995) list of easy American-English words, as static Rust data.

Readability tools use this list to decide whether a word is familiar when scoring text. This crate ships the data only. Computing the formula is up to the caller.

The crate is #![no_std] and has no dependencies. The minimum supported Rust version is 1.65.

Install

[dependencies]
dale-chall = "0.1"

Use

use dale_chall::DALE_CHALL;

assert_eq!(DALE_CHALL.len(), 2942);
assert_eq!(DALE_CHALL[0], "a");

assert!(DALE_CHALL.binary_search(&"old-fashioned").is_ok());
assert!(DALE_CHALL.binary_search(&"xylophone").is_err());

Data

DALE_CHALL is a &'static [&'static str] of 2942 words. The list is sorted ascending by byte order and holds no duplicates. Every entry is lowercase ASCII. Nine words contain a hyphen and 47 contain a straight apostrophe (', U+0027).

The slice is sorted, so check membership with DALE_CHALL.binary_search(&word).is_ok(). The check is exact and case sensitive. The data is already lowercase, so lowercase the query first if the input may carry other casing.

License

Licensed under the MIT license.