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VGRIND(1)               FreeBSD General Commands Manual              VGRIND(1)

NAME
     vgrind - grind nice listings of programs

SYNOPSIS
     vgrind [-] [-W] [-d file] [-f] [-h header] [-llanguage] [-n]
            [-p postproc] [-s pointsize] [-t] [-x] name ...

DESCRIPTION
     The vgrind utility formats the program sources specified as arguments on
     the command line in a nice style using troff(1).  Comments are placed in
     italics, keywords in bold face, and the name of the current function is
     listed down the margin of each page as it is encountered.

     The vgrind utility runs in two basic modes, filter mode (see the -f
     option) or regular mode.  In filter mode vgrind acts as a filter in a
     manner similar to tbl(1).  The standard input is passed directly to the
     standard output except for lines bracketed by the troff-like macros:

     .vS     starts processing

     .vE     ends processing

     These lines are formatted as described above.  The output from this
     filter can be passed to troff(1) for output.  There need be no particular
     ordering with eqn(1) or tbl(1).

     In regular mode vgrind accepts input files, processes them, and passes
     them to the postprocessor for output, psroff(1) by default.

     In both modes vgrind passes any lines beginning with a decimal point
     without conversion.

     The options are:

     -             forces input to be taken from standard input (default if -f
                   is specified)

     -W            forces output to the (wide) Versatec printer rather than
                   the (narrow) Varian

     -d file       specifies an alternate language definitions file (default
                   is /usr/share/misc/vgrindefs)

     -f            forces filter mode

     -h header     specifies a particular header to put on every output page
                   (default is the file name)

     -l            specifies the language to use.  Currently known are PASCAL
                   (-lp), MODEL (-lm), C (-lc or the default), C++ (-lc++),
                   CSH (-lcsh), SHELL (-lsh), RATFOR (-lr), MODULA2 (-lmod2),
                   YACC (-lyacc), LISP (-lisp), ICON (-lI), and PERL (-lperl).

     -n            forces no keyword bolding

     -p postproc   use postproc to post-process the output, psroff(1) by
                   default.

     -s pointsize  specifies a point size to use on output (exactly the same
                   as the argument of a .ps)

     -t            similar to the same option in troff(1) causing formatted
                   text to go to the standard output

     -x            outputs the index file in a ``pretty'' format.  The index
                   file itself is produced whenever vgrind is run with a file
                   called index in the current directory.  The index of
                   function definitions can then be run off by giving vgrind
                   the -x option and the file index as argument.

FILES
     index                        file where source for index is created
     /usr/share/tmac/tmac.vgrind  macro package
     /usr/libexec/vfontedpr       preprocessor
     /usr/share/misc/vgrindefs    language descriptions

SEE ALSO
     getcap(3), vgrindefs(5)

HISTORY
     The vgrind command appeared in 3.0BSD.

BUGS
     The vfontedpr preprocessor assumes that a certain programming style is
     followed:

     For C - function names can be preceded on a line only by spaces, tabs, or
     an asterisk.  The parenthesized arguments must also be on the same line.

     For PASCAL - function names need to appear on the same line as the
     keywords function or procedure.

     For MODEL - function names need to appear on the same line as the
     keywords is beginproc.

     If these conventions are not followed, the indexing and marginal function
     name comment mechanisms will fail.

     More generally, arbitrary formatting styles for programs mostly look bad.
     The use of spaces to align source code fails miserably; if you plan to
     vgrind your program you should use tabs.  This is somewhat inevitable
     since the font used by vgrind is variable width.

     The mechanism of ctags(1) in recognizing functions should be used here.

     Filter mode does not work in documents using the -me or -ms macros.  (So
     what use is it anyway?)

FreeBSD 11.0-PRERELEASE         August 29, 2006        FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | HISTORY | BUGS

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