Importing usr.bin/checknr
No Minix-specific changes needed. Change-Id: I22fc8fdee158b00bf93c5455b2b2409d7cff4e05
This commit is contained in:
Thomas Cort
parent
a501098bf5
commit
0c745990d9
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@ -252,6 +252,7 @@
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./usr/bin/cdprobe minix-sys
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./usr/bin/c++filt minix-sys binutils
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./usr/bin/checkhier minix-sys obsolete
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./usr/bin/checknr minix-sys
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./usr/bin/chfn minix-sys
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./usr/bin/chgrp minix-sys
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./usr/bin/chmod minix-sys
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@ -1857,6 +1858,7 @@
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./usr/man/man1/cccp.1 minix-sys gcccmds
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./usr/man/man1/cd.1 minix-sys
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./usr/man/man1/c++filt.1 minix-sys binutils
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./usr/man/man1/checknr.1 minix-sys
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./usr/man/man1/chfn.1 minix-sys
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./usr/man/man1/chgrp.1 minix-sys
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./usr/man/man1/chmod.1 minix-sys
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@ -153,6 +153,7 @@
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2012/10/17 12:00:00,usr.bin/bzip2recover
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2013/03/15 12:00:00,usr.bin/cal
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2012/10/17 12:00:00,usr.bin/calendar
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2012/10/17 12:00:00,usr.bin/checknr
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2009/04/11 12:10:02,usr.bin/chpass
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2012/10/17 12:00:00,usr.bin/cksum
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2012/10/17 12:00:00,usr.bin/col
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@ -6,7 +6,7 @@
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SUBDIR= asa \
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banner basename bdes \
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bzip2 bzip2recover cal calendar \
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chpass cksum col colrm \
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checknr chpass cksum col colrm \
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column comm csplit ctags cut \
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deroff dirname du \
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env expand \
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8
usr.bin/checknr/Makefile
Normal file
8
usr.bin/checknr/Makefile
Normal file
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@ -0,0 +1,8 @@
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# $NetBSD: Makefile,v 1.5 2009/04/14 22:15:18 lukem Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/6/93
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WARNS?= 2 # fails -Wcast-qual
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PROG= checknr
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.include <bsd.prog.mk>
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168
usr.bin/checknr/checknr.1
Normal file
168
usr.bin/checknr/checknr.1
Normal file
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@ -0,0 +1,168 @@
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.\" $NetBSD: checknr.1,v 1.15 2004/07/09 11:40:00 wiz Exp $
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.\"
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.\" Copyright (c) 1980, 1990, 1993
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.\" The Regents of the University of California. 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. 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 8.1 (Berkeley) 6/6/93
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.\"
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.Dd January 21, 2002
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.Dt CHECKNR 1
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.Os
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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
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.Op Fl fs
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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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.Ar file
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.Sh DESCRIPTION
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.Nm
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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
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checks the standard input.
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.Pp
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Recognized options are:
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.Bl -tag -width xxx -compact -offset indent
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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
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to ignore
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.Ql \ef
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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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Delimiters checked are:
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.Bl -enum -compact -offset indent
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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
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is intended for use on documents that are prepared with
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.Nm
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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 .
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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
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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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as well as the macros from
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.Xr mdoc 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 SEE ALSO
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.Xr nroff 1 ,
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.Xr troff 1 ,
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.Xr mdoc 7 ,
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.Xr me 7 ,
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.Xr ms 7
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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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Basic
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.Xr mdoc 7
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support appeared in
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.Nx 1.6 .
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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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.Pp
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.Xr mdoc 7
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macros that are not at the beginning of the line are not recognized.
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Among others, this results in too many
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.Ql Unmatched Zz
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errors.
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641
usr.bin/checknr/checknr.c
Normal file
641
usr.bin/checknr/checknr.c
Normal file
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@ -0,0 +1,641 @@
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/* $NetBSD: checknr.c,v 1.20 2008/07/21 14:19:21 lukem Exp $ */
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/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. 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. 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
|
||||
* 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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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1980, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)checknr.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: checknr.c,v 1.20 2008/07/21 14:19:21 lukem Exp $");
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#endif
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#endif /* not lint */
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/*
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* checknr: check an nroff/troff input file for matching macro calls.
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* we also attempt to match size and font changes, but only the embedded
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* kind. These must end in \s0 and \fP resp. Maybe more sophistication
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* later but for now think of these restrictions as contributions to
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* structured typesetting.
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*/
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define MAXSTK 100 /* Stack size */
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#define MAXBR 100 /* Max number of bracket pairs known */
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#define MAXCMDS 500 /* Max number of commands known */
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/*
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* The stack on which we remember what we've seen so far.
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*/
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struct stkstr {
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int opno; /* number of opening bracket */
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int pl; /* '+', '-', ' ' for \s, 1 for \f, 0 for .ft */
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int parm; /* parm to size, font, etc */
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int lno; /* line number the thing came in in */
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} stk[MAXSTK];
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int stktop;
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/*
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* The kinds of opening and closing brackets.
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*/
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struct brstr {
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char *opbr;
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char *clbr;
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} br[MAXBR] = {
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/* A few bare bones troff commands */
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#define SZ 0
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{ "sz", "sz"}, /* also \s */
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#define FT 1
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{ "ft", "ft"}, /* also \f */
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/* the -mm package */
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{"AL", "LE"},
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{"AS", "AE"},
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{"BL", "LE"},
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{"BS", "BE"},
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{"DF", "DE"},
|
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{"DL", "LE"},
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{"DS", "DE"},
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{"FS", "FE"},
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{"ML", "LE"},
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{"NS", "NE"},
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{"RL", "LE"},
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{"VL", "LE"},
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/* the -ms package */
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{"AB", "AE"},
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{"BD", "DE"},
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{"CD", "DE"},
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{"DS", "DE"},
|
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{"FS", "FE"},
|
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{"ID", "DE"},
|
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{"KF", "KE"},
|
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{"KS", "KE"},
|
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{"LD", "DE"},
|
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{"LG", "NL"},
|
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{"QS", "QE"},
|
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{"RS", "RE"},
|
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{"SM", "NL"},
|
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{"XA", "XE"},
|
||||
{"XS", "XE"},
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/* The -me package */
|
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{"(b", ")b"},
|
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{"(c", ")c"},
|
||||
{"(d", ")d"},
|
||||
{"(f", ")f"},
|
||||
{"(l", ")l"},
|
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{"(q", ")q"},
|
||||
{"(x", ")x"},
|
||||
{"(z", ")z"},
|
||||
/* The -mdoc package */
|
||||
{"Ao", "Ac"},
|
||||
{"Bd", "Ed"},
|
||||
{"Bk", "Ek"},
|
||||
{"Bo", "Bc"},
|
||||
{"Do", "Dc"},
|
||||
{"Fo", "Fc"},
|
||||
{"Oo", "Oc"},
|
||||
{"Po", "Pc"},
|
||||
{"Qo", "Qc"},
|
||||
{"Rs", "Re"},
|
||||
{"So", "Sc"},
|
||||
{"Xo", "Xc"},
|
||||
/* Things needed by preprocessors */
|
||||
{"EQ", "EN"},
|
||||
{"TS", "TE"},
|
||||
/* Refer */
|
||||
{"[", "]"},
|
||||
{0, 0}
|
||||
};
|
||||
|
||||
/*
|
||||
* All commands known to nroff, plus macro packages.
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||||
* Used so we can complain about unrecognized commands.
|
||||
*/
|
||||
char *knowncmds[MAXCMDS] = {
|
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"$c", "$f", "$h", "$p", "$s", "%A", "%B", "%C", "%D", "%I", "%J", "%N",
|
||||
"%O", "%P", "%Q", "%R", "%T", "%V", "(b", "(c", "(d", "(f", "(l", "(q",
|
||||
"(t", "(x", "(z", ")b", ")c", ")d", ")f", ")l", ")q", ")t", ")x",
|
||||
")z", "++", "+c", "1C", "1c", "2C", "2c", "@(", "@)", "@C", "@D",
|
||||
"@F", "@I", "@M", "@c", "@e", "@f", "@h", "@m", "@n", "@o", "@p",
|
||||
"@r", "@t", "@z", "AB", "AE", "AF", "AI", "AL", "AM", "AS", "AT",
|
||||
"AU", "AX", "Ac", "Ad", "An", "Ao", "Ap", "Aq", "Ar", "At", "B" , "B1",
|
||||
"B2", "BD", "BE", "BG", "BL", "BS", "BT", "BX", "Bc", "Bd", "Bf",
|
||||
"Bk", "Bl", "Bo", "Bq", "Bsx", "Bx", "C1", "C2", "CD", "CM", "CT",
|
||||
"Cd", "Cm", "D" , "D1", "DA", "DE", "DF", "DL", "DS", "DT", "Db", "Dc",
|
||||
"Dd", "Dl", "Do", "Dq", "Dt", "Dv", "EC", "EF", "EG", "EH", "EM",
|
||||
"EN", "EQ", "EX", "Ec", "Ed", "Ef", "Ek", "El", "Em", "Eo", "Er",
|
||||
"Ev", "FA", "FD", "FE", "FG", "FJ", "FK", "FL", "FN", "FO", "FQ",
|
||||
"FS", "FV", "FX", "Fa", "Fc", "Fd", "Fl", "Fn", "Fo", "Ft", "Fx",
|
||||
"H" , "HC", "HD", "HM", "HO", "HU", "I" , "ID", "IE", "IH", "IM",
|
||||
"IP", "IX", "IZ", "Ic", "In", "It", "KD", "KE", "KF", "KQ", "KS", "LB",
|
||||
"LC", "LD", "LE", "LG", "LI", "LP", "Lb", "Li", "MC", "ME", "MF",
|
||||
"MH", "ML", "MR", "MT", "ND", "NE", "NH", "NL", "NP", "NS", "Nd",
|
||||
"Nm", "No", "Ns", "Nx", "OF", "OH", "OK", "OP", "Oc", "Oo", "Op",
|
||||
"Os", "Ot", "Ox", "P" , "P1", "PF", "PH", "PP", "PT", "PX", "PY",
|
||||
"Pa", "Pc", "Pf", "Po", "Pp", "Pq", "QE", "QP", "QS", "Qc", "Ql",
|
||||
"Qo", "Qq", "R" , "RA", "RC", "RE", "RL", "RP", "RQ", "RS", "RT",
|
||||
"Re", "Rs", "S" , "S0", "S2", "S3", "SA", "SG", "SH", "SK", "SM",
|
||||
"SP", "SY", "Sc", "Sh", "Sm", "So", "Sq", "Ss", "St", "Sx", "Sy",
|
||||
"T&", "TA", "TB", "TC", "TD", "TE", "TH", "TL", "TM", "TP", "TQ",
|
||||
"TR", "TS", "TX", "Tn", "UL", "US", "UX", "Ud", "Ux", "VL", "Va", "Vt",
|
||||
"WC", "WH", "XA", "XD", "XE", "XF", "XK", "XP", "XS", "Xc", "Xo",
|
||||
"Xr", "[" , "[-", "[0", "[1", "[2", "[3", "[4", "[5", "[<", "[>",
|
||||
"[]", "\\{", "\\}", "]" , "]-", "]<", "]>", "][", "ab", "ac", "ad", "af", "am",
|
||||
"ar", "as", "b" , "ba", "bc", "bd", "bi", "bl", "bp", "br", "bx",
|
||||
"c.", "c2", "cc", "ce", "cf", "ch", "cs", "ct", "cu", "da", "de",
|
||||
"di", "dl", "dn", "ds", "dt", "dw", "dy", "ec", "ef", "eh", "el",
|
||||
"em", "eo", "ep", "ev", "ex", "fc", "fi", "fl", "fo", "fp", "ft",
|
||||
"fz", "hc", "he", "hl", "hp", "ht", "hw", "hx", "hy", "i" , "ie",
|
||||
"if", "ig", "in", "ip", "it", "ix", "lc", "lg", "li", "ll", "ln",
|
||||
"lo", "lp", "ls", "lt", "m1", "m2", "m3", "m4", "mc", "mk", "mo",
|
||||
"n1", "n2", "na", "ne", "nf", "nh", "nl", "nm", "nn", "np", "nr",
|
||||
"ns", "nx", "of", "oh", "os", "pa", "pc", "pi", "pl", "pm", "pn",
|
||||
"po", "pp", "ps", "q" , "r" , "rb", "rd", "re", "rm", "rn", "ro",
|
||||
"rr", "rs", "rt", "sb", "sc", "sh", "sk", "so", "sp", "ss", "st",
|
||||
"sv", "sz", "ta", "tc", "th", "ti", "tl", "tm", "tp", "tr", "u",
|
||||
"uf", "uh", "ul", "vs", "wh", "xp", "yr", 0
|
||||
};
|
||||
|
||||
int lineno; /* current line number in input file */
|
||||
char *cfilename; /* name of current file */
|
||||
int nfiles; /* number of files to process */
|
||||
int fflag; /* -f: ignore \f */
|
||||
int sflag; /* -s: ignore \s */
|
||||
int ncmds; /* size of knowncmds */
|
||||
int slot; /* slot in knowncmds found by binsrch */
|
||||
|
||||
void addcmd(char *);
|
||||
void addmac(char *);
|
||||
int binsrch(char *);
|
||||
void checkknown(char *);
|
||||
void chkcmd(char *, char *);
|
||||
void complain(int);
|
||||
int eq(const void *, const void *);
|
||||
int main(int, char **);
|
||||
void nomatch(char *);
|
||||
void pe(int);
|
||||
void process(FILE *);
|
||||
void prop(int);
|
||||
void usage(void);
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
FILE *f;
|
||||
int i;
|
||||
char *cp;
|
||||
char b1[4];
|
||||
|
||||
/* Figure out how many known commands there are */
|
||||
while (knowncmds[ncmds])
|
||||
ncmds++;
|
||||
while (argc > 1 && argv[1][0] == '-') {
|
||||
switch(argv[1][1]) {
|
||||
|
||||
/* -a: add pairs of macros */
|
||||
case 'a':
|
||||
i = strlen(argv[1]) - 2;
|
||||
if (i % 6 != 0)
|
||||
usage();
|
||||
/* look for empty macro slots */
|
||||
for (i=0; br[i].opbr; i++)
|
||||
;
|
||||
for (cp=argv[1]+3; cp[-1]; cp += 6) {
|
||||
if (i >= MAXBR)
|
||||
errx(1, "too many pairs");
|
||||
if ((br[i].opbr = malloc(3)) == NULL)
|
||||
err(1, "malloc");
|
||||
strlcpy(br[i].opbr, cp, 3);
|
||||
if ((br[i].clbr = malloc(3)) == NULL)
|
||||
err(1, "malloc");
|
||||
strlcpy(br[i].clbr, cp+3, 3);
|
||||
addmac(br[i].opbr); /* knows pairs are also known cmds */
|
||||
addmac(br[i].clbr);
|
||||
i++;
|
||||
}
|
||||
break;
|
||||
|
||||
/* -c: add known commands */
|
||||
case 'c':
|
||||
i = strlen(argv[1]) - 2;
|
||||
if (i % 3 != 0)
|
||||
usage();
|
||||
for (cp=argv[1]+3; cp[-1]; cp += 3) {
|
||||
if (cp[2] && cp[2] != '.')
|
||||
usage();
|
||||
strncpy(b1, cp, 2);
|
||||
addmac(b1);
|
||||
}
|
||||
break;
|
||||
|
||||
/* -f: ignore font changes */
|
||||
case 'f':
|
||||
fflag = 1;
|
||||
break;
|
||||
|
||||
/* -s: ignore size changes */
|
||||
case 's':
|
||||
sflag = 1;
|
||||
break;
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
argc--; argv++;
|
||||
}
|
||||
|
||||
nfiles = argc - 1;
|
||||
|
||||
if (nfiles > 0) {
|
||||
for (i=1; i<argc; i++) {
|
||||
cfilename = argv[i];
|
||||
f = fopen(cfilename, "r");
|
||||
if (f == NULL)
|
||||
perror(cfilename);
|
||||
else {
|
||||
process(f);
|
||||
fclose(f);
|
||||
}
|
||||
}
|
||||
} else {
|
||||
cfilename = "stdin";
|
||||
process(stdin);
|
||||
}
|
||||
exit(0);
|
||||
}
|
||||
|
||||
void
|
||||
usage(void)
|
||||
{
|
||||
(void)fprintf(stderr,
|
||||
"usage: %s [-fs] [-a.xx.yy.xx.yy...] [-c.xx.xx.xx...] file\n",
|
||||
getprogname());
|
||||
exit(1);
|
||||
}
|
||||
|
||||
void
|
||||
process(FILE *f)
|
||||
{
|
||||
int i, n;
|
||||
char line[256]; /* the current line */
|
||||
char mac[5]; /* The current macro or nroff command */
|
||||
int pl;
|
||||
|
||||
stktop = -1;
|
||||
for (lineno = 1; fgets(line, sizeof line, f); lineno++) {
|
||||
if (line[0] == '.') {
|
||||
/*
|
||||
* find and isolate the macro/command name.
|
||||
*/
|
||||
strncpy(mac, line+1, 4);
|
||||
if (isspace((unsigned char)mac[0])) {
|
||||
pe(lineno);
|
||||
printf("Empty command\n");
|
||||
} else if (isspace((unsigned char)mac[1])) {
|
||||
mac[1] = 0;
|
||||
} else if (isspace((unsigned char)mac[2])) {
|
||||
mac[2] = 0;
|
||||
} else if (mac[0] != '\\' || mac[1] != '\"') {
|
||||
pe(lineno);
|
||||
printf("Command too long\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* Is it a known command?
|
||||
*/
|
||||
checkknown(mac);
|
||||
|
||||
/*
|
||||
* Should we add it?
|
||||
*/
|
||||
if (eq(mac, "de"))
|
||||
addcmd(line);
|
||||
|
||||
chkcmd(line, mac);
|
||||
}
|
||||
|
||||
/*
|
||||
* At this point we process the line looking
|
||||
* for \s and \f.
|
||||
*/
|
||||
for (i=0; line[i]; i++)
|
||||
if (line[i]=='\\' && (i==0 || line[i-1]!='\\')) {
|
||||
if (!sflag && line[++i]=='s') {
|
||||
pl = line[++i];
|
||||
if (isdigit((unsigned char)pl)) {
|
||||
n = pl - '0';
|
||||
pl = ' ';
|
||||
} else
|
||||
n = 0;
|
||||
while (isdigit((unsigned char)line[++i]))
|
||||
n = 10 * n + line[i] - '0';
|
||||
i--;
|
||||
if (n == 0) {
|
||||
if (stktop >= 0 &&
|
||||
stk[stktop].opno == SZ) {
|
||||
stktop--;
|
||||
} else {
|
||||
pe(lineno);
|
||||
printf("unmatched \\s0\n");
|
||||
}
|
||||
} else {
|
||||
stk[++stktop].opno = SZ;
|
||||
stk[stktop].pl = pl;
|
||||
stk[stktop].parm = n;
|
||||
stk[stktop].lno = lineno;
|
||||
}
|
||||
} else if (!fflag && line[i]=='f') {
|
||||
n = line[++i];
|
||||
if (n == 'P') {
|
||||
if (stktop >= 0 &&
|
||||
stk[stktop].opno == FT) {
|
||||
stktop--;
|
||||
} else {
|
||||
pe(lineno);
|
||||
printf("unmatched \\fP\n");
|
||||
}
|
||||
} else {
|
||||
stk[++stktop].opno = FT;
|
||||
stk[stktop].pl = 1;
|
||||
stk[stktop].parm = n;
|
||||
stk[stktop].lno = lineno;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/*
|
||||
* We've hit the end and look at all this stuff that hasn't been
|
||||
* matched yet! Complain, complain.
|
||||
*/
|
||||
for (i=stktop; i>=0; i--) {
|
||||
complain(i);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
complain(int i)
|
||||
{
|
||||
pe(stk[i].lno);
|
||||
printf("Unmatched ");
|
||||
prop(i);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
void
|
||||
prop(int i)
|
||||
{
|
||||
if (stk[i].pl == 0)
|
||||
printf(".%s", br[stk[i].opno].opbr);
|
||||
else switch(stk[i].opno) {
|
||||
case SZ:
|
||||
printf("\\s%c%d", stk[i].pl, stk[i].parm);
|
||||
break;
|
||||
case FT:
|
||||
printf("\\f%c", stk[i].parm);
|
||||
break;
|
||||
default:
|
||||
printf("Bug: stk[%d].opno = %d = .%s, .%s",
|
||||
i, stk[i].opno, br[stk[i].opno].opbr,
|
||||
br[stk[i].opno].clbr);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
chkcmd(char *line, char *mac)
|
||||
{
|
||||
int i;
|
||||
|
||||
/*
|
||||
* Check to see if it matches top of stack.
|
||||
*/
|
||||
if (stktop >= 0 && eq(mac, br[stk[stktop].opno].clbr))
|
||||
stktop--; /* OK. Pop & forget */
|
||||
else {
|
||||
/* No. Maybe it's an opener */
|
||||
for (i=0; br[i].opbr; i++) {
|
||||
if (eq(mac, br[i].opbr)) {
|
||||
/* Found. Push it. */
|
||||
stktop++;
|
||||
stk[stktop].opno = i;
|
||||
stk[stktop].pl = 0;
|
||||
stk[stktop].parm = 0;
|
||||
stk[stktop].lno = lineno;
|
||||
break;
|
||||
}
|
||||
/*
|
||||
* Maybe it's an unmatched closer.
|
||||
* NOTE: this depends on the fact
|
||||
* that none of the closers can be
|
||||
* openers too.
|
||||
*/
|
||||
if (eq(mac, br[i].clbr)) {
|
||||
nomatch(mac);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
nomatch(char *mac)
|
||||
{
|
||||
int i, j;
|
||||
|
||||
/*
|
||||
* Look for a match further down on stack
|
||||
* If we find one, it suggests that the stuff in
|
||||
* between is supposed to match itself.
|
||||
*/
|
||||
for (j=stktop; j>=0; j--)
|
||||
if (eq(mac,br[stk[j].opno].clbr)) {
|
||||
/* Found. Make a good diagnostic. */
|
||||
if (j == stktop-2) {
|
||||
/*
|
||||
* Check for special case \fx..\fR and don't
|
||||
* complain.
|
||||
*/
|
||||
if (stk[j+1].opno==FT && stk[j+1].parm!='R'
|
||||
&& stk[j+2].opno==FT && stk[j+2].parm=='R') {
|
||||
stktop = j -1;
|
||||
return;
|
||||
}
|
||||
/*
|
||||
* We have two unmatched frobs. Chances are
|
||||
* they were intended to match, so we mention
|
||||
* them together.
|
||||
*/
|
||||
pe(stk[j+1].lno);
|
||||
prop(j+1);
|
||||
printf(" does not match %d: ", stk[j+2].lno);
|
||||
prop(j+2);
|
||||
printf("\n");
|
||||
} else for (i=j+1; i <= stktop; i++) {
|
||||
complain(i);
|
||||
}
|
||||
stktop = j-1;
|
||||
return;
|
||||
}
|
||||
/* Didn't find one. Throw this away. */
|
||||
pe(lineno);
|
||||
printf("Unmatched .%s\n", mac);
|
||||
}
|
||||
|
||||
/* eq: are two strings equal? */
|
||||
int
|
||||
eq(const void *s1, const void *s2)
|
||||
{
|
||||
return (strcmp((char *)s1, (char *)s2) == 0);
|
||||
}
|
||||
|
||||
/* print the first part of an error message, given the line number */
|
||||
void
|
||||
pe(int pelineno)
|
||||
{
|
||||
if (nfiles > 1)
|
||||
printf("%s: ", cfilename);
|
||||
printf("%d: ", pelineno);
|
||||
}
|
||||
|
||||
void
|
||||
checkknown(char *mac)
|
||||
{
|
||||
|
||||
if (eq(mac, "."))
|
||||
return;
|
||||
if (binsrch(mac) >= 0)
|
||||
return;
|
||||
if (mac[0] == '\\' && mac[1] == '"') /* comments */
|
||||
return;
|
||||
|
||||
pe(lineno);
|
||||
printf("Unknown command: .%s\n", mac);
|
||||
}
|
||||
|
||||
/*
|
||||
* We have a .de xx line in "line". Add xx to the list of known commands.
|
||||
*/
|
||||
void
|
||||
addcmd(char *line)
|
||||
{
|
||||
char *mac;
|
||||
|
||||
/* grab the macro being defined */
|
||||
mac = line+4;
|
||||
while (isspace((unsigned char)*mac))
|
||||
mac++;
|
||||
if (*mac == 0) {
|
||||
pe(lineno);
|
||||
printf("illegal define: %s\n", line);
|
||||
return;
|
||||
}
|
||||
mac[2] = 0;
|
||||
if (isspace((unsigned char)mac[1]) || mac[1] == '\\')
|
||||
mac[1] = 0;
|
||||
if (ncmds >= MAXCMDS) {
|
||||
printf("Only %d known commands allowed\n", MAXCMDS);
|
||||
exit(1);
|
||||
}
|
||||
addmac(mac);
|
||||
}
|
||||
|
||||
/*
|
||||
* Add mac to the list. We should really have some kind of tree
|
||||
* structure here but this is a quick-and-dirty job and I just don't
|
||||
* have time to mess with it. (I wonder if this will come back to haunt
|
||||
* me someday?) Anyway, I claim that .de is fairly rare in user
|
||||
* nroff programs, and the register loop below is pretty fast.
|
||||
*/
|
||||
void
|
||||
addmac(char *mac)
|
||||
{
|
||||
char **src, **dest, **loc;
|
||||
|
||||
if (binsrch(mac) >= 0){ /* it's OK to redefine something */
|
||||
#ifdef DEBUG
|
||||
printf("binsrch(%s) -> already in table\n", mac);
|
||||
#endif /* DEBUG */
|
||||
return;
|
||||
}
|
||||
/* binsrch sets slot as a side effect */
|
||||
#ifdef DEBUG
|
||||
printf("binsrch(%s) -> %d\n", mac, slot);
|
||||
#endif
|
||||
loc = &knowncmds[slot];
|
||||
src = &knowncmds[ncmds-1];
|
||||
dest = src+1;
|
||||
while (dest > loc)
|
||||
*dest-- = *src--;
|
||||
if ((*loc = strdup(mac)) == NULL)
|
||||
err(1, "strdup");
|
||||
ncmds++;
|
||||
#ifdef DEBUG
|
||||
printf("after: %s %s %s %s %s, %d cmds\n", knowncmds[slot-2],
|
||||
knowncmds[slot-1], knowncmds[slot], knowncmds[slot+1],
|
||||
knowncmds[slot+2], ncmds);
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* Do a binary search in knowncmds for mac.
|
||||
* If found, return the index. If not, return -1.
|
||||
*/
|
||||
int
|
||||
binsrch(char *mac)
|
||||
{
|
||||
char *p; /* pointer to current cmd in list */
|
||||
int d; /* difference if any */
|
||||
int mid; /* mid point in binary search */
|
||||
int top, bot; /* boundaries of bin search, inclusive */
|
||||
|
||||
top = ncmds-1;
|
||||
bot = 0;
|
||||
while (top >= bot) {
|
||||
mid = (top+bot)/2;
|
||||
p = knowncmds[mid];
|
||||
d = p[0] - mac[0];
|
||||
if (d == 0)
|
||||
d = p[1] - mac[1];
|
||||
if (d == 0)
|
||||
return mid;
|
||||
if (d < 0)
|
||||
bot = mid + 1;
|
||||
else
|
||||
top = mid - 1;
|
||||
}
|
||||
slot = bot; /* place it would have gone */
|
||||
return -1;
|
||||
}
|
||||
Loading…
Reference in a new issue