Macro dformat 

macro_rules! dformat {
    ($template:literal, $($args:tt)*) => { ... };
    ($template:expr, $($args:tt)*) => { ... };
}

Dynamic drop in format! replacement.

use dfmt::*;

let template = "This example template {contains:*^width$} multiple {{{0}}}
    named and {} indexed args {0:+020o} {3:#?} {:.*}.";
let precompiled_template = Template::parse(template).unwrap();

dformat!(template, contains = "STH", 42, 3, 3.1423223, template, width=50).unwrap();
dformat!(precompiled_template, contains = "STH", 42, 3, 3.1423223, template, width=50).unwrap();

// Use `format!` under the hood
dformat!("Hello, {}!", "World").unwrap();

Supported features

Name	Feature
Fill/Alignment	<, ^, >
Sign	+, -
Alternate	#
Zero-padding	0
Width	{:20}, {:width$}
Precision	{:.5}, {:.precision$}, {:*}
Type	?, x, X, o, b, e, E, p
Argument keys	{}, {0}, {arg}