1993-03-21 12:45:37 +03:00
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.\" Copyright (c) 1980, 1990 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)checknr.1 6.6 (Berkeley) 3/14/91
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.\"
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.Dd March 14, 1991
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.Dt CHECKNR 1
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.Os BSD 4
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.Sh NAME
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.Nm checknr
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.Nd check nroff/troff files
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.Sh SYNOPSIS
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.Nm checknr
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.Op Fl a Ns Ar \&.x1.y1.x2.y2. ... \&.xn.yn
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.Op Fl c Ns Ar \&.x1.x2.x3 ... \&.xn
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.Op Fl s
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.Op Fl f
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.Ar file
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.Sh DESCRIPTION
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.Nm Checknr
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checks a list of
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.Xr nroff 1
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or
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.Xr troff 1
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input files for certain kinds of errors
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involving mismatched opening and closing delimiters
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and unknown commands.
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If no files are specified,
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.Nm checknr
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checks the standard input.
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.Pp
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Options:
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.Bl -tag -width Ds
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.It Fl a
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Add additional pairs of macros to the list of known macros.
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This must be followed by groups of six characters, each group defining
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a pair of macros.
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The six characters are
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a period,
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the first macro name,
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another period,
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and the second macro name.
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For example, to define a pair .BS and .ES, use
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.Sq Li \-a.BS.ES
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.It Fl c
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Define commands which would otherwise be complained about
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as undefined.
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.It Fl f
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Request
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.Nm checknr
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to ignore
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1993-04-26 23:59:33 +04:00
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.Ql \ef
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1993-03-21 12:45:37 +03:00
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font changes.
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.It Fl s
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Ignore
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.Ql \es
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size changes.
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.El
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.Pp
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Delimeters checked are:
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.Bl -enum
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.It
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Font changes using \efx ... \efP.
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.It
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Size changes using \esx ... \es0.
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.It
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Macros that come in open ... close forms, for example,
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the .TS and .TE macros which must always come in pairs.
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.El
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.Pp
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.Nm Checknr
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is intended for use on documents that are prepared with
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.Nm checknr
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in mind, much the same as
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.Xr lint 1 .
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It expects a certain document writing style for
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.Ql \ef
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and
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.Ql \es
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commands,
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in that each
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.Ql \efx
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must be terminated with
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.Ql \efP
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and
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each
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.Ql \esx
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must be terminated with
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.Ql \es0 .
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While it will work to directly go into the next font or explicitly
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specify the original font or point size,
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and many existing documents actually do this,
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such a practice will produce complaints from
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.Nm checknr .
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Since it is probably better to use the
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.Ql \efP
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and
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.Ql \es0
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forms anyway,
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you should think of this as a contribution to your document
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preparation style.
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.Pp
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.Nm Checknr
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knows about the
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.Xr ms 7
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and
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.Xr me 7
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macro packages.
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.Sh SEE ALSO
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.Xr nroff 1 ,
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.Xr troff 1 ,
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.Xr checkeq 1 ,
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.Xr ms 7 ,
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.Xr me 7
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.Sh DIAGNOSTICS
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.Bd -ragged -compact
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Complaints about unmatched delimiters.
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Complaints about unrecognized commands.
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Various complaints about the syntax of commands.
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.Ed
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.Sh BUGS
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There is no way to define a 1 character macro name using
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.Fl a .
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.Pp
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Does not correctly recognize certain reasonable constructs,
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such as conditionals.
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Bx 4.0 .
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