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VGRIND(1) DragonFly General Commands Manual VGRIND(1)
vgrind -- grind nice listings of programs
vgrind [-] [-W] [-d file] [-f] [-h header] [-llanguage] [-n]
[-p postproc] [-sn] [-t] [-x] name ...
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
The options are:
- forces input to be taken from standard input (default if -f
-W forces output to the (wide) Versatec printer rather than
the (narrow) Varian
-d file specifies an alternate language definitions file (default
-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
-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(1) causing formatted
text to go to the standard output
-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 func-
tion definitions can then be run off by giving vgrind the
-x option and the file index as argument.
index file where source for index is created
/usr/share/tmac/tmac.vgrind macro package
/usr/share/misc/vgrindefs language descriptions
The vgrind command appeared in 3.0BSD.
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 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?)
DragonFly 5.5 June 6, 1993 DragonFly 5.5