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VGRIND(1)                                BSD General Commands Manual                               VGRIND(1)

NAME
     vgrind -- grind nice listings of programs

SYNOPSIS
     vgrind [-] [-W] [-d file] [-f] [-h header] [-l language] [-n] [-sn] [-t] [-x] name ...

DESCRIPTION
     vgrind formats the program sources which are arguments 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 mar-gin margin
     gin of each page as it is encountered.

     vgrind 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 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 troff(1) for output.

     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 )

     -d file       specifies an alternative 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), CSH (-lcsh), SHELL (-lsh), RATFOR (-lr), MODULA2 (-lmod2), YACC (-lyacc),
                   LISP (-lisp), and ICON (-lI).

     -n            forces no keyword bolding

     -s            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 causing formatted text to go to the standard output

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

     -x            outputs the index file in a ``pretty'' format.  The index file itself is produced when-ever whenever
                   ever vgrind is run with a file called index in the current directory.  The index of func-tion function
                   tion 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
     lpr(1), troff(1), getcap(3), vgrindefs(5)

BUGS
     Vfontedpr 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 parenthe-sized parenthesized
     sized 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?)

HISTORY
     The vgrind command appeared in 3.0BSD.

4th Berkeley Distribution                       June 6, 1993                       4th Berkeley Distribution