pub fn upper(input: &str) -> ParseResult<'_, char>Expand description
upper = A | B | C | D | E | F | G | H
| I | J | K | L | M | N | O | P
| Q | R | S | T | U | V | W | X
| Y | Z | _ .
pub fn upper(input: &str) -> ParseResult<'_, char>upper = A | B | C | D | E | F | G | H
| I | J | K | L | M | N | O | P
| Q | R | S | T | U | V | W | X
| Y | Z | _ .