# 2.11BSD#431 - /usr/man/cat1/vgrind.0

    VGRIND(1)	    UNIX Programmer's Manual		VGRIND(1)

    NAME
         vgrind - grind nice listings of programs

    SYNOPSIS
         vgrind [ -f ] [ - ] [ -t ] [ -n ] [ -x ] [ -W ] [ -sn ] [ -h
         header ] [ -d file ] [ -llanguage ] 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 margin of each page as it is encountered.

         Vgrind runs in two basic modes, filter mode 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:

         -f   forces filter mode

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

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

         -n   forces no keyword bolding

         -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 argu-
    	  ment.

    Printed 11/26/99	October 22, 1996			1

    VGRIND(1)	    UNIX Programmer's Manual		VGRIND(1)

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

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

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

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

         -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), ISP (-lisp), and ICON (-lI).

    FILES
         index		 file where source for index is created
         /usr/share/tmac/tmac.vgrindmacro package
         /usr/libexec/vfontedprpreprocessor
         /usr/share/misc/vgrindefslanguage descriptions

    AUTHOR
         Dave Presotto & William Joy

    SEE ALSO
         vlp(1), vtroff(1), vgrindefs(5)

    BUGS
         Vfontedpr assumes that a certain programming style is fol-
         lowed:

         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 mar-
         ginal 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.

    Printed 11/26/99	October 22, 1996			2

    VGRIND(1)	    UNIX Programmer's Manual		VGRIND(1)

         The mechanism of ctags 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?)

    Printed 11/26/99	October 22, 1996			3

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