Is it possible to parse #[my_attribute("literal")]?

[gavrilikhin-d]

How can I create derive macro Rule that is able to parse #[rule("{username}:{password}")] as its attribute?

use derive::Rule;

#[derive(Rule)]
#[rule("{username}:{password}")]
struct Credentials {
       #[pattern("/[_0-9a-zA-Z]+/")]
       pub username: String,
       #[pattern("/[_0-9a-zA-Z]+/")]
       pub password: String
}

[TedDriggs]

You’ll want to follow the examples around attribute macros that aren’t derive macros, and probably use the forward_attrs option to collect those for subsequent processing.