Bug: cannot parse `0.000_000_001`

[/c/ympfh]

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: ParseFloatError { kind: Invalid }', src/parser/value.rs:137:42
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

shell returned 101