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BSD 2.11 - man page for checknr (bsd section 1)

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CHECKNR(1)									       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 char-
       acters 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)
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