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From: rolfh@runit.sintef.no (Rolf Petter Halle)
Newsgroups: fa.sun-manager,comp.sys.sun.admin,comp.unix.bsd
Subject: Solution: OF/IF filter problems with lpr
Date: 16 Mar 1994 08:57:33 GMT
Organization: Computing center at the University of Trondheim, Norway
Lines: 26
Distribution: world
Message-ID: <2m6hlt$392@ugle.unit.no>
References: <2m3qrn$jtc@ugle.unit.no>
NNTP-Posting-Host: ravn.runit.sintef.no
Keywords: lpd,lpr,filters
I got this solution from Tor Egge (tegge@idt.unit.no), it appears to
work, but the pseduo-code below is written by me, so any errors are due
to me :-)
The question was basically: How to get a banner page for every print job when
using if/of together?
The following pseudo-code part of the of filter shows the solution:
sub handle_banner{
while(!eof(stdin) && not read \031\1) {
read input and save/convert to file for further treatment;
}
if (eof(stdin)) {
return;
} else {
suspend myself;
handle_banner; # Handle next banner from stdin when resumed
}
}
I've promised him a Pizza for this...
Thanx to the others who responded.
Rolf