Function interpolator::format
source · pub fn format(format: &str, context: &impl Context) -> Result<String, Error>
Expand description
Runtime version of format!
.
Takes a string and a context, containing Formattable
values, returns a
string.
use interpolator::{format, Formattable};
let formatted = format(
"{value:+05}", // could be dynamic
&[("value", Formattable::display(&12))]
.into_iter()
.collect::<HashMap<_, _>>(),
)
.unwrap();
assert_eq!(formatted, format!("{:+05}", 12));
Errors
It will return an error if the specified format string has invalid syntax, the type doesn’t implement the expected trait, or the formatting itself failed.
For more details have a look at Error
and ParseError
.