unicode-categories is a simple crate that adds many extensions
char type that allow for the querying of whether or not
a character is a member of a certain category of unicode characters.
use unicode_categories::UnicodeCategories; assert!('a'.is_letter_lowercase()); assert!('A'.is_letter_uppercase()); assert!('\n'.is_other_control());
This crate can be obtained from crates.io and used as a dependency like any other crate.
Regenerating the tables
The script in
scripts/unicode.py reads a file named
which is assumed to be in the current working directory. This file
can be obtained from ftp://ftp.unicode.org . The script outputs a rust
file to standard out, which can be piped to the desired location.