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fbbd9655e5
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
243 lines
5.8 KiB
Groff
243 lines
5.8 KiB
Groff
.\" 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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.\" @(#)vgrind.1 8.1 (Berkeley) 6/6/93
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.\" $FreeBSD$
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.\"
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.Dd August 29, 2006
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.Dt VGRIND 1
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.Os
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.Sh NAME
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.Nm vgrind
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.Nd grind nice listings of programs
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.Sh SYNOPSIS
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.Nm
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.Op Fl
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.Op Fl W
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.Op Fl d Ar file
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.Op Fl f
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.Op Fl h Ar header
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.Op Fl l Ns Ar language
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.Op Fl n
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.Op Fl p Ar postproc
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.Op Fl s Ar pointsize
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.Op Fl t
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.Op Fl x
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.Ar name Ar ...
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.Sh DESCRIPTION
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The
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.Nm
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utility formats the program sources specified as arguments
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on the command line in a nice style using
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.Xr troff 1 .
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Comments are placed in italics, keywords in bold face,
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and the name of the current function is listed down the margin of each
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page as it is encountered.
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.Pp
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The
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.Nm
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utility runs in two basic modes, filter mode (see the
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.Fl f
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option) or regular mode.
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In filter mode
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.Nm
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acts as a filter in a manner similar to
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.Xr tbl 1 .
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The standard input is passed directly to the standard output except
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for lines bracketed by the
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.Em troff-like
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macros:
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.Bl -tag -width Ds
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.It \&.vS
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starts processing
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.It \&.vE
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ends processing
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.El
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.Pp
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These lines are formatted as described above.
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The output from this
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filter can be passed to
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.Xr troff 1
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for output.
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There need be no particular ordering with
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.Xr eqn 1
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or
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.Xr tbl 1 .
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.Pp
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In regular mode
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.Nm
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accepts input files, processes them, and passes them to the postprocessor
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for output,
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.Xr psroff 1
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by default.
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.Pp
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In both modes
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.Nm
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passes any lines beginning with a decimal point without conversion.
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.Pp
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The options are:
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.Bl -tag -width Ar
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.It Fl
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forces input to be taken from standard input (default if
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.Fl f
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is specified)
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.It Fl W
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forces output to the (wide) Versatec printer rather than the (narrow)
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Varian
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.It Fl d Ar file
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specifies an alternate language definitions
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file (default is
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.Pa /usr/share/misc/vgrindefs )
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.It Fl f
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forces filter mode
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.It Fl h Ar header
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specifies a particular header to put on every output page (default is
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the file name)
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.It Fl l
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specifies the language to use.
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Currently known are
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.Tn PASCAL
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.Pq Fl l Ns Ar p ,
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.Tn MODEL
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.Pq Fl l Ns Ar m ,
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C
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.Pf ( Fl l Ns Ar c
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or the default),
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.Tn C++
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.Pq Fl l Ns Ar c++ ,
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.Tn CSH
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.Pq Fl l Ns Ar csh ,
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.Tn SHELL
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.Pq Fl l Ns Ar sh ,
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.Tn RATFOR
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.Pq Fl l Ns Ar r ,
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.Tn MODULA2
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.Pq Fl l Ns Ar mod2 ,
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.Tn YACC
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.Pq Fl l Ns Ar yacc ,
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.Tn LISP
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.Pq Fl l Ns Ar isp ,
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.Tn ICON
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.Pq Fl l Ns Ar I ,
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and
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.Tn PERL
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.Pq Fl l Ns Ar perl .
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.It Fl n
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forces no keyword bolding
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.It Fl p Ar postproc
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use
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.Ar postproc
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to post-process the output,
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.Xr psroff 1
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by default.
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.It Fl s Ar pointsize
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specifies a point size to use on output (exactly the same as the argument
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of a .ps)
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.It Fl t
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similar to the same option in
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.Xr troff 1
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causing formatted text to go to the standard output
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.It Fl x
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outputs the index file in a ``pretty'' format.
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The index file itself is produced whenever
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.Nm
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is run with a file called
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.Pa index
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in the current directory.
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The index of function
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definitions can then be run off by giving
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.Nm
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the
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.Fl x
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option and the file
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.Pa index
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as argument.
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.El
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.Sh FILES
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.Bl -tag -width /usr/share/misc/vgrindefsxx -compact
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.It Pa index
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file where source for index is created
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.It Pa /usr/share/tmac/tmac.vgrind
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macro package
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.It Pa /usr/libexec/vfontedpr
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preprocessor
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.It Pa /usr/share/misc/vgrindefs
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language descriptions
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.El
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.Sh SEE ALSO
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.Xr getcap 3 ,
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.Xr vgrindefs 5
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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 3.0 .
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.Sh BUGS
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The vfontedpr preprocessor assumes that a certain programming style is
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followed:
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.Pp
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For
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.Tn C
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\- function names can be preceded on a line only by spaces, tabs, or an
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asterisk.
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The parenthesized arguments must also be on the same line.
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.Pp
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For
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.Tn PASCAL
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\- function names need to appear on the same line as the keywords
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.Em function
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or
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.Em procedure .
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.Pp
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For
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.Tn MODEL
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\- function names need to appear on the same line as the keywords
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.Em is beginproc .
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.Pp
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If these conventions are not followed, the indexing and marginal function
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name comment mechanisms will fail.
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.Pp
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More generally, arbitrary formatting styles for programs mostly look bad.
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The use of spaces to align source code fails miserably; if you plan to
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.Nm
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your program you should use tabs.
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This is somewhat inevitable since the
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font used by
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.Nm
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is variable width.
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.Pp
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The mechanism of
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.Xr ctags 1
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in recognizing functions should be used here.
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.Pp
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Filter mode does not work in documents using the
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.Fl me
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or
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.Fl ms
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macros.
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(So what use is it anyway?)
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