knfmt

The knfmt(1) utility formats source code files according to style(9) from OpenBSD in a best effort fashion. By default, source code is read from standard input and the formatted source code is written to standard output:

$ knfmt <knfmt.c

It can perform an in place edit by writing back the formatted source code:

$ knfmt -i knfmt.c

It can produce a diff between the original and formatted source code:

$ knfmt -d knfmt.c

In addition, it can given a diff only format the changed lines. This option is compatible with the options mentioned above:

$ git diff | knfmt -Dd

It can subjectively try to simplify the source code:

$ knfmt -s knfmt.c

The implementation is further described in DESIGN.

Installation

OpenBSD

# pkg_add knfmt

From source

The installation prefix defaults to /usr/local and can be altered using the PREFIX environment variable when invoking configure:

$ ./configure
$ make install

License

Copyright (c) 2021-2022 Anton Lindqvist. Distributed under the ISC license.