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vgrind(1)				  User Commands 				vgrind(1)

       vgrind - grind nice program listings

       vgrind [-2fntwx] [-d defs-file] [-h header] [-l language]
	    [-s n] [-o pagelist] [-P printer] [-T output-device] filename...

       The  vgrind  utility formats the program sources named by the filename arguments in a nice
       style using troff(1). Comments are placed in italics, keywords in bold face, and  as  each
       function is encountered its name is listed on the page margin.

       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 filenames, processes them, and passes them to  troff
       for  output.  Use  a  hyphen  (`-') to specify standard input; otherwise, vgrind will exit
       without attempting to read from the standard input. Filenames must be specified after  all
       other option arguments.

       In regular mode, if the -t or -P option is specified, the output is:

	   o	  emitted (in troff format) to stdout if the -t option is specified.

	   o	  printed (as PostScript) to the named printer if the -P option is specified.

       Otherwise, the output is:

	   o	  printed  (as	PostScript) on the system default printer, if one is defined, and
		  the command's stdout is a tty.

	   o	  emitted (as PostScript) to stdout if it is not a tty (that is, if stdout  is	a
		  pipe or a redirect to a file).

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

       The following options are supported:

       -2	       Produces  two-column  output.  Specifying  this option changes the default
		       point size to 8 (as if the -s8 option were supplied). It also arranges for
		       output to appear in landscape mode.

       -f	       Forces filter mode.

       -n	       Does not make keywords boldface.

       -w	       Considers  TAB  characters  to be spaced four columns apart instead of the
		       usual eight.

       -x	       Outputs the index file in a "pretty" format. The index file itself is pro-
		       duced  whenever	vgrind is run with a file called index that is present 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.

       -d defs-file    Specifies   an	alternate   language   definitions   file   (default   is

       -h header       Specifies a header to appear in the  center  of	every  output  page.  Use
		       quotes to specify headers with embedded spaces.

       -l language     Specifies  the  language  to use. Among the languages currently known are:
		       Bourne shell (-lsh), C (-lc, the default), C++ (-lc++), C  shell  (-lcsh),
		       emacs  MLisp  (-lml),  FORTRAN  (-lf),  Icon (-lI), ISP (-i), LDL (-lLDL),
		       Model (-lm), Pascal (-lp), and RATFOR (-lr).

       -P printer      Sends output to the named printer.

       -s n	       Specifies a point size to use on output (exactly the same as the  argument
		       of a troff .ps point size request).

       vgrind  passes  the  following options to the formatter specified by the TROFF environment
       variable. See ENVIRONMENT VARIABLES.

       -t		   Similar to the same option in troff; that is, formatted text  goes  to
			   the standard output.

       -o pagelist	   Prints  only  those pages whose page numbers appear in the comma-sepa-
			   rated pagelist of numbers and  ranges.  A  range  N-M  means  pages	N
			   through  M;	an  initial  -N means from the beginning to page N; and a
			   final N- means from N to the end.

       -T output-device    Formats output for the specified output-device.

       The following operand is supported:

       filename    Name of the program source to be processed by vgrind. Use `-' to  specify  the
		   standard input.

       In  regular  mode, vgrind feeds its intermediate output to the text formatter given by the
       value of the TROFF environment variable, or to /usr/bin/troff  if  this	variable  is  not
       defined in the environment. This mechanism allows for local variations in troff's name.


	   file where source for index is created


	   language descriptions




	   macro package

       See attributes(5) for descriptions of the following attributes:

       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       |Availability		     |SUNWdoc			   |

       csh(1), ctags(1), eqn(1), tbl(1), troff(1), attributes(5), vgrindefs(5)

       vgrind assumes that a certain programming style is followed:

       C	  Function  names  can	be  preceded on a line only by SPACE, TAB, or an asterisk
		  (*). The parenthesized arguments must also be on the same line.

       FORTRAN	  Function names need to appear on the same line as the keywords function or sub-

       MLisp	  Function names should not appear on the same line as the preceding defun.

       Model	  Function names need to appear on the same line as the keywords is beginproc.

       Pascal	  Function names need to appear on the same line as the keywords function or pro-

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

       More  generally,  arbitrary formatting styles for programs usually give unsightly results.
       To prepare a program for vgrind output, use TAB rather  than  SPACE  characters	to  align
       source code properly, since vgrind uses variable width fonts.

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

       The -w option is annoying, but there is no other way to achieve the desired effect.

       The  macros  defined  in  tmac.vgrind  do not coexist gracefully with those of other macro
       packages, making filter mode difficult to use effectively.

       vgrind does not process certain special characters in csh(1) scripts correctly.

       The tmac.vgrind formatting macros wire in the page height and  width  used  in  two-column
       mode, effectively making two column output useless for paper sizes other than the standard
       American size of 8.5 inches by 11 inches. For other paper sizes, it is necessary  to  edit
       the  size values given in tmac.vgrind. A better solution would be to create a troff output
       device specification intended specifically for landscape output and record  size  informa-
       tion there.

SunOS 5.11				    3 Mar 2000					vgrind(1)
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