checknr — check nroff/troff files

The checknr utility checks a list of nroff(1) or troff(1) input files for certain kinds of errors involving mismatched opening and closing delimiters and unknown commands.

To install

0. make clobber all

If checknr compiles successfully, then:

1. make test

If the all is well with the test:

2. sudo make install

To use

See the checknr.1 man page for details.

To read the checknr.1 man page before installing:

man ./checknr.1

For example, to check the checknr.1 man page within the source directory:

./checknr -c.Ar.Bd.Bl.Bx.Dd.Dt.Ed.El.Fl.It.Nd.Nm.Op.Os.Pp.Ql.Sh.Sq.Xr checknr.1

From the dbg repo man page dbg.3 try:

checknr -c.BR.SS.BI /path/to/dbg/dbg.3

The above command assumes you have installed checknr and that the executable is in the path.

To test from this directory:

./checknr -c.BR.SS.BI /path/to/dbg/dbg.3

History

Landon Noll did NOT write checknr. This repo is provided by Landon Noll so that others may use this old command.

The checknr command first appeared in 4.0BSD. The original 4.0BSD source code contains these strings:

@(#) Copyright (c) 1980, 1993
	The Regents of the University of California.  All rights reserved.
@(#)checknr.c   8.1 (Berkeley) 6/6/93

Later on, this line was added by the folks from FreeBSD:

$FreeBSD: src/usr.bin/checknr/checknr.c,v 1.9 2004/07/15 04:42:47 tjr Exp

The program had to be modified slightly from the FreeBSD version, to make it easier for other systems to compile. See the file checknr.orig.c for the original source code.

Reporting Security Issues

To report a security issue, please visit "Reporting Security Issues".