CHECKNR(1) General Commands Manual CHECKNR(1)
checknr - check nroff/troff files
checknr [ -s ] [ -f ] [ -a.x1.y1.x2.y2. ... .xn.yn ] [ -c.x1.x2.x3 ... .xn ] [ file ... ]
Checknr 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. If no files are specified, checknr checks the standard input. Delimeters checked are:
(1) Font changes using fx ... fP.
(2) Size changes using sx ... s0.
(3) Macros that come in open ... close forms, for example, the .TS and .TE macros which must always come in pairs.
Checknr knows about the ms(7) and me(7) macro packages.
Additional pairs of macros can be added to the list using the -a option. This must be followed by groups of six characters, each group
defining a pair of macros. The six characters are a period, the first macro name, another period, and the second macro name. For example,
to define a pair .BS and .ES, use -a.BS.ES
The -c option defines commands which would otherwise be complained about as undefined.
The -f option requests checknr to ignore f font changes.
The -s option requests checknr to ignore s size changes.
Checknr is intended to be used on documents that are prepared with checknr in mind, much the same as lint. It expects a certain document
writing style for f and s commands, in that each fx must be terminated with fP and each sx must be terminated with s0. While it will
work to directly go into the next font or explicitly specify the original font or point size, and many existing documents actually do this,
such a practice will produce complaints from checknr. Since it is probably better to use the fP and s0 forms anyway, you should think of
this as a contribution to your document preparation style.
nroff(1), troff(1), checkeq(1), ms(7), me(7)
Complaints about unmatched delimiters.
Complaints about unrecognized commands.
Various complaints about the syntax of commands.
There is no way to define a 1 character macro name using -a.
Does not correctly recognize certain reasonable constructs, such as conditionals.
4th Berkeley Distribution May 7, 1986 CHECKNR(1)