1 extern crate unicode_xid; 2 use unicode_xid::UnicodeXID; 3 /// A `char` in Rust is a Unicode Scalar Value 4 /// 5 /// See: http://www.unicode.org/glossary/#unicode_scalar_value all_valid_chars() -> impl Iterator<Item = char>6fn all_valid_chars() -> impl Iterator<Item = char> { 7 (0u32..=0xD7FF).chain(0xE000u32..=0x10FFFF).map(|u| { 8 core::convert::TryFrom::try_from(u) 9 .expect("The selected range should be infallible if the docs match impl") 10 }) 11 } 12 13 #[test] all_valid_chars_do_not_panic_for_is_xid_start()14fn all_valid_chars_do_not_panic_for_is_xid_start() { 15 for c in all_valid_chars() { 16 let _ = UnicodeXID::is_xid_start(c); 17 } 18 } 19 20 #[test] all_valid_chars_do_not_panic_for_is_xid_continue()21fn all_valid_chars_do_not_panic_for_is_xid_continue() { 22 for c in all_valid_chars() { 23 let _ = UnicodeXID::is_xid_continue(c); 24 } 25 } 26