scolapasta_string_escape

Function ascii_char_with_escape

Source 
pub const fn ascii_char_with_escape(ch: char) -> Option<&'static str>
Expand description

Returns whether the given char has an ASCII literal escape code.

Control characters in the range 0x00..=0x1F, ", \ and DEL have non-trivial escapes.

§Examples

assert_eq!(ascii_char_with_escape('\0'), Some(r"\x00"));
assert_eq!(ascii_char_with_escape('\n'), Some(r"\n"));
assert_eq!(ascii_char_with_escape('"'), Some(r#"\""#));
assert_eq!(ascii_char_with_escape('\\'), Some(r"\\"));

assert_eq!(ascii_char_with_escape('a'), None);
assert_eq!(ascii_char_with_escape('Z'), None);
assert_eq!(ascii_char_with_escape(';'), None);
assert_eq!(ascii_char_with_escape('💎'), None);
assert_eq!(ascii_char_with_escape(REPLACEMENT_CHARACTER), None);