Function regex_syntax::debug::utf8_decode

pub(crate) fn utf8_decode(bytes: &[u8]) -> Option<Result<char, u8>>

Decodes the next UTF-8 encoded codepoint from the given byte slice.

If no valid encoding of a codepoint exists at the beginning of the given byte slice, then the first byte is returned instead.

This returns None if and only if bytes is empty.