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@(#)checknr.1 8.1 (Berkeley) 6/6/93
$FreeBSD: head/usr.bin/checknr/checknr.1 131491 2004-07-02 22:22:35Z ru $
.Dd June 6, 1993 .Dt CHECKNR 1 .Os .Sh NAME .Nm checknr .Nd check nroff/troff files .Sh SYNOPSIS .Nm .Op Fl a Ns Ar .x1.y1.x2.y2. ... .xn.yn .Op Fl c Ns Ar .x1.x2.x3 ... .xn .Op Fl s .Op Fl f .Ar file .Sh DESCRIPTION The .Nm utility checks a list of .Xr nroff 1 or .Xr troff 1 input files for certain kinds of errors involving mismatched opening and closing delimiters and unknown commands. If no files are specified, .Nm checks the standard input.
p The following options are available: l -tag -width indent t Fl a Add additional pairs of macros to the list of known macros. 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 .Sq Li -a.BS.ES t Fl c Define commands which would otherwise be complained about as undefined. t Fl f Request .Nm to ignore .Ql \ef font changes. t Fl s Ignore .Ql \es size changes. .El
p Delimiters checked are: l -enum t Font changes using \efx ... \efP. t Size changes using \esx ... \es0. t Macros that come in open ... close forms, for example, the .TS and .TE macros which must always come in pairs. .El
p The .Nm utility is intended for use on documents that are prepared with .Nm in mind, much the same as .Xr lint 1 . It expects a certain document writing style for .Ql \ef and .Ql \es commands, in that each .Ql \efx must be terminated with .Ql \efP and each .Ql \esx must be terminated with .Ql \es0 . 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 .Nm . Since it is probably better to use the .Ql \efP and .Ql \es0 forms anyway, you should think of this as a contribution to your document preparation style.
p
The
.Nm
utility knows about the
.Xr ms 7
and
.Xr me 7
macro packages.
.Sh SEE ALSO
.Xr nroff 1 ,
.Xr troff 1 ,
.Xr me 7 ,
.Xr ms 7
.Xr checkeq 1 ,
.Sh DIAGNOSTICS
d -ragged -compact Complaints about unmatched delimiters.
Complaints about unrecognized commands.
Various complaints about the syntax of commands.
.Ed
.Sh BUGS
There is no way to define a 1 character macro name using
.Fl a .
p Does not correctly recognize certain reasonable constructs, such as conditionals. .Sh HISTORY The .Nm command appeared in x 4.0 .