Remove TEST_MAPPING, failing rust tests am: 19b50d7e67 Original change: https://googleplex-android-review.googlesource.com/c/platform/external/rust/crates/unicode-xid/+/12295794 Change-Id: I18ab778222ce9a9524871fa5b65dfcc78f5b7b4b
Determine if a char is a valid identifier for a parser and/or lexer according to Unicode Standard Annex #31 rules.
extern crate unicode_xid; use unicode_xid::UnicodeXID; fn main() { let ch = 'a'; println!("Is {} a valid start of an identifier? {}", ch, UnicodeXID::is_xid_start(ch)); }
unicode-xid supports a no_std feature. This eliminates dependence on std, and instead uses equivalent functions from core.
You can use this package in your project by adding the following to your Cargo.toml:
[dependencies] unicode-xid = "0.1.0"