247 lines
6.0 KiB
Groff
247 lines
6.0 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. 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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.\" @(#)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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