[Groff] An example for `command' in pic.man

[Bernd Warken]

The pic preprocessor has a powerful interface to groff outside with `command'.  
Although its syntax is not straightforward, no examples seem to exist for this 
interface.  The following diff adds an example to the man page for pic in 
<groff-source>/src/preproc/pic/pic.man:

--- pic.man.orig        2003-07-10 06:41:42.000000000 +0200
+++ pic.man     2004-05-14 12:42:16.000000000 +0200
@@ -362,6 +362,22 @@
 or
 .BR \e ,
 but allows the values of variables to be passed through.
+For example,
+.RS
+.IP
+.ft B
+.nf
+\&.PS
+x = 14
+command ".ds string x is " x "."
+\&.PE
+\\*[string]
+.ft
+.fi
+.RE
+.IP
+prints
+.B x is 14.
 .
 .TP
 \fBsh\fR \fIX\fR \fIcommand\fR \fIX\fR


Bernd Warken

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