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VGRIND(1)										VGRIND(1)

       vgrind - grind nice listings of programs

       vgrind [ -f ] [ - ] [ -t ] [ -n ] [ -x ] [ -W ] [ -sn ] [ -h header ] [ -d file ] [ -llan-
       guage ] name ...

       Vgrind formats the program sources which are arguments in a nice style using troff(1) Com-
       ments  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

       -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 argument.

       -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

       -d     specifies     an	   alternate	language    definitions    file    (default    is

       -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).

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

       Dave Presotto & William Joy

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

       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 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

       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 spa-
       ces 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 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

4th Berkeley Distribution		 October 22, 1996				VGRIND(1)
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