Crate nixfmt_rs 

nixfmt-rs: Rust implementation of nixfmt with exact Haskell compatibility.

Example

let src = "{foo=1;}";
assert_eq!(nixfmt_rs::format(src).unwrap(), "{ foo = 1; }\n");

let mut opts = nixfmt_rs::Options::default();
opts.width = 40;
let _ = nixfmt_rs::format_with(src, &opts).unwrap();

On parse failure the returned ParseError can be rendered for users via format_error.

Macros

format_constructor

Macro to format constructor applications.

format_enum

Macro to format enum match arms Automatically generates match arms that call format_constructor! for each variant

format_record

Macro to format record fields with comma separation Based on pretty-simple’s list function for Braces From Haskell: Braces xss -> list “{” “}” xss

Structs

Options

Layout options for format_with.

ParseError

A parse error with span and structured error kind

Constants

VERSION

Version of the nixfmt_rs crate (and thus the formatting rules).

Functions

format

Format a Nix file.

format_error

Render a ParseError as a multi-line diagnostic with source snippet and caret, in the style of rustc.

format_with

Format a Nix file with explicit layout Options.