escape-bytes

Escapes bytes that are not printable ASCII characters.

The exact rules are:

• Nul is escaped as \0.
• Tab is escaped as \t.
• Line feed is escaped as \n.
• Carriage return is escaed as \r.
• Backslach is escaped as \\.
• Any character in the printable ASCII range 0x20..=0x7e is not escaped.
• Any other character is hex escaped in the form \xNN.

Intended for use where byte sequences are not valid ASCII or UTF-8 but need to be stored in a semi-human readable form where only ASCII or UTF-8 are permitted.

Examples

Escape

let str = b"hello\xc3world";
let escaped = escape_bytes::escape(str);
assert_eq!(escaped, br"hello\xc3world");

Unescape

let escaped = br"hello\xc3world";
let unescaped = escape_bytes::unescape(escaped)?;
assert_eq!(unescaped, b"hello\xc3world");

License: Apache-2.0