checknr(1)
Name
checknr − check nroff/troff files
Syntax
checknr [−s] [−f] [−a.x1.y1.x2.y2. ... .xn.yn] [−c.x1.x2.x3... .xn] [file...]
Description
The checknr command checks a list of nroff() or troff() 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. Delimiters checked are:
5Font changes using \fx ... \fP.
Size changes using \sx ... \s0.
Macros that come in open ... close forms, for example, the .TS and .TE macros which must always come in pairs.
The checknr command knows about the ms() and me() macro packages.
The checknr command 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.
Options
−a Allows additional pairs of macros to be added to the list. 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.
−c Defines commands otherwise complained about as undefined.
−f Ignores \f font changes.
−s Ignores \s size changes.
Restrictions
There is no way to define a 1 character macro name using −a.
Does not correctly recognize certain reasonable characters, such as conditionals.
Diagnostics
Complaints about unmatched delimiters.
Complaints about unrecognized commands.
Various complaints about the syntax of commands.