How to change a set of characters between delimiters?

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LEARN ABOUT OSX

checknr

CHECKNR(1)						    BSD General Commands Manual 						CHECKNR(1)

NAME

     checknr -- check nroff/troff files

SYNOPSIS

     checknr [-a.x1.y1.x2.y2. ... .xn.yn] [-c.x1.x2.x3 ... .xn] [-s] [-f] file

DESCRIPTION

     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.  If no files are specified, checknr checks the standard input.

     The following options are available:

     -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 '-a.BS.ES'

     -c      Define commands which would otherwise be complained about as undefined.

     -f      Request checknr to ignore 'f' font changes.

     -s      Ignore 's' size changes.

     Delimiters 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.

     The checknr utility is intended for use on documents that are prepared with checknr in mind, much the same as lint(1).  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 docu-
     ments 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.

     The checknr utility knows about the ms(7) and me(7) macro packages.

SEE ALSO

     nroff(1), troff(1), me(7), ms(7)

DIAGNOSTICS

     Complaints about unmatched delimiters.  Complaints about unrecognized commands.  Various complaints about the syntax of commands.

BUGS

     There is no way to define a 1 character macro name using -a.

     Does not correctly recognize certain reasonable constructs, such as conditionals.

HISTORY

     The checknr command appeared in 4.0BSD.

BSD
								   June 6, 1993 							       BSD

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