invisible_characters/
lib.rs

1pub mod invisible_chars;
2pub use invisible_chars::INVISIBLE_CHARS;
3
4pub fn convert_code_to_unicode_char(code: &str) -> char {
5  let hex = u32::from_str_radix(code, 16).unwrap_or_default();
6  char::from_u32(hex).unwrap_or_default()
7}
8
9#[cfg(test)]
10mod test {
11  use crate::INVISIBLE_CHARS;
12  use anyhow::Result;
13
14  #[test]
15  fn code_convert() -> Result<()> {
16    let test_code = "000A";
17    let hex = u32::from_str_radix(test_code, 16)?;
18    let converted = char::from_u32(hex).unwrap_or('a');
19    assert_eq!('\u{000A}', converted);
20    Ok(())
21  }
22
23  #[test]
24  fn first_and_last() -> Result<()> {
25    assert_eq!('\u{0009}', *INVISIBLE_CHARS.first().unwrap());
26    assert_eq!('\u{e0020}', *INVISIBLE_CHARS.last().unwrap());
27    Ok(())
28  }
29
30  #[test]
31  fn flag_or_emoji_fail() -> Result<()> {
32    let has_flag_and_emoji = "hello👋🇦🇴";
33    assert!(!has_flag_and_emoji.contains(INVISIBLE_CHARS));
34    Ok(())
35  }
36}
invisible_characters/lib.rs

invisible_characters/
lib.rs
