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32 .\" @(#)vgrind.1 8.1 (Berkeley) 6/6/93
33 .\" $FreeBSD: src/usr.bin/vgrind/vgrind.1,v 1.7.2.3 2002/06/21 15:30:04 charnier Exp $
34 .\" $DragonFly: src/usr.bin/vgrind/vgrind.1,v 1.4 2006/04/17 18:01:38 swildner Exp $
41 .Nd grind nice listings of programs
49 .Op Fl l Ns Ar language
59 utility formats the program sources which are arguments
62 Comments are placed in italics, keywords in bold face,
63 and the name of the current function is listed down the margin of each
64 page as it is encountered.
68 utility runs in two basic modes, filter mode (see the
70 option) or regular mode. In filter mode
72 acts as a filter in a manner similar to
74 The standard input is passed directly to the standard output except
75 for lines bracketed by the
85 These lines are formatted as described above. The output from this
86 filter can be passed to
88 for output. There need be no particular ordering with
95 accepts input files, processes them, and passes them to the postprocessor
102 passes any lines beginning with a decimal point without conversion.
107 forces input to be taken from standard input (default if
111 forces output to the (wide) Versatec printer rather than the (narrow)
114 specifies an alternate language definitions
116 .Pa /usr/share/misc/vgrindefs )
120 specifies a particular header to put on every output page (default is
123 specifies the language to use. Currently known are
140 .Pq Fl l Ns Ar mod2 ,
142 .Pq Fl l Ns Ar yacc ,
149 .Pq Fl l Ns Ar perl .
151 forces no keyword bolding
155 to post-process the output,
159 specifies a point size to use on output (exactly the same as the argument
162 similar to the same option in
164 causing formatted text to go to the standard output
166 outputs the index file in a ``pretty'' format.
167 The index file itself is produced whenever
169 is run with a file called
171 in the current directory.
172 The index of function
173 definitions can then be run off by giving
182 .Bl -tag -width /usr/share/misc/vgrindefsxx -compact
184 file where source for index is created
185 .It Pa /usr/share/tmac/tmac.vgrind
187 .It Pa /usr/libexec/vfontedpr
189 .It Pa /usr/share/misc/vgrindefs
190 language descriptions
201 Vfontedpr assumes that a certain programming style is followed:
205 \- function names can be preceded on a line only by spaces, tabs, or an
206 asterisk. The parenthesized arguments must also be on the same line.
210 \- function names need to appear on the same line as the keywords
217 \- function names need to appear on the same line as the keywords
220 If these conventions are not followed, the indexing and marginal function
221 name comment mechanisms will fail.
223 More generally, arbitrary formatting styles for programs mostly look bad.
224 The use of spaces to align source code fails miserably; if you plan to
226 your program you should use tabs. This is somewhat inevitable since the
233 in recognizing functions should be used here.
235 Filter mode does not work in documents using the
240 (So what use is it anyway?)