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vgrind(1)

NAME

     vgrind -- grind nice listings of programs

SYNOPSIS

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

DESCRIPTION

     The vgrind utility 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 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 fil-
     ter 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.
		   file itself is produced whenever vgrind is run with a file
		   called index in the current directory.  The index of func-
		   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

     getcap(3), vgrindefs(5)

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 key-
     words function or procedure.

     For MODEL - function names need to appear on the same line as the key-
     words 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.

FreeBSD 5.4			 June 6, 1993			   FreeBSD 5.4

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