Parse error human-readable messages maybe should translate u8s to ascii

[mcclure]

The recommended way to use pom (per your examples) is parsing 'u8's. If pom fails to match, it gives messages like:
Err(Mismatch { message: "expect: 120, found: 101", position: 1 })
Here "120" is ascii "x" and "101" is ascii "e".
Since usually pom will be interpreting text, it would make sense to convert these values to characters if they happen to match printable ASCII.

Did I miss a feature that can do this already?

[J-F-Liu]

This is not implemented yet.