Crate displaydoc_lite

Lite version of displaydoc.

This crate is a lite version of the popular crate displaydoc. It provides the same functionality but using a declarative macro instead and not depending on syn or quote.

This crate is also usable in no_std environments. No additional features are required for that.

Note that displaydoc-lite still has two proc-macro dependencies, but they are very tiny and do not have any dependencies.

Example

use displaydoc_lite::displaydoc;
use std::io;

displaydoc! {
    #[derive(Debug)]
    pub enum DataStoreError {
        /// data store disconnected: {_0}
        Disconnect(io::Error),
        /// the data for key `{_0}` is not available
        Redaction(String),
        /// invalid header (expected {expected}, found {found})
        InvalidHeader {
            expected: String,
            found: String,
        },
        /// unknown data store error
        Unknown,
    }
}

Support for interpolating fields is planed, but currently not implemented.

License

Licensed under either Apache License or the MIT license.

Macros

displaydoc

The main macro of this crate which is used to create the Display implementation for an enum.