Function fmty::fmt_with

pub fn fmt_with<F: Fn(&mut Formatter<'_>) -> Result>(fmt: F) -> FmtWith<F>

Formats via a closure.

Examples

let value = Some("hola mundo");

let formatted = fmty::fmt_with(|f| {
    if let Some(value) = value {
        write!(f, "{value}")?;
    }
    Ok(())
});

assert_eq!(formatted.to_string(), "hola mundo");