Debian bug report logs - #737 , boring messages ----------------------------------------------------------------------- Message sent to debian-devel@pixar.com: Subject: Bug#737: gawk references to `$0' in END rule give previous record Reply-To: iwj10@cus.cam.ac.uk (Ian Jackson), debian-bugs@pixar.com Resent-To: debian-devel@pixar.com Resent-From: iwj10@cus.cam.ac.uk (Ian Jackson) Resent-Sender: iwj10@cus.cam.ac.uk Resent-Date: Tue, 04 Apr 1995 16:33:08 GMT Resent-Message-ID: X-Debian-PR-Package: gawk X-Debian-PR-Keywords: Received: via spool for debian-bugs; Tue, 04 Apr 1995 16:33:08 GMT Received: with rfc822 via encapsulated-mail id 04041629263894; Tue, 04 Apr 1995 16:29:27 GMT Received: from pixar.com by mongo.pixar.com with smtp (Smail3.1.28.1 #15) id m0rwBQY-0006VUC; Tue, 4 Apr 95 09:26 PDT Received: from bootes.cus.cam.ac.uk by pixar.com with SMTP id AA19494 (5.65c/IDA-1.4.4 for ); Tue, 4 Apr 1995 09:25:41 -0700 Received: by bootes.cus.cam.ac.uk (Smail-3.1.29.0 #30) id m0rw971-000C0yC; Tue, 4 Apr 95 14:57 BST Received: by chiark id m0rw7I5-0000YSZ (Debian /\oo/\ Smail3.1.29.1 #29.27); Tue, 4 Apr 95 13:01 BST Message-Id: Date: Tue, 4 Apr 95 13:01 BST From: iwj10@cus.cam.ac.uk (Ian Jackson) To: Debian bugs submission address Package: gawk Version: 2.15.6-1 chiark:~/junk> cat t BEGIN { print "begin rule here >", $0, "<"; } /./ { print ". rule here >", $0, "<"; } END { print; print "end rule just done >", $0, "<"; } chiark:~/junk> /usr/bin/awk -f t < . rule here > order hosts,bind < . rule here > multi on < multi on end rule just done > multi on < chiark:~/junk> cat /etc/host.conf order hosts,bind multi on chiark:~/junk> As you can see, the `print' and `print "end rule ..."' statements are using the value of $0 for the last record. However, according to the gawk info file (node BEGIN/END, at the very bottom): `BEGIN' and `END' rules must have actions; there is no default action for these rules since there is no current record when they run. This implies that $0 should be empty. I discovered this bug when trying to build the latest version of the smail package. It contains an awk script that does a bare `print' in the END rule, expecting a blank line, but instead gets the final line of the input file. This causes the build to fail. Ian. ----------------------------------------------------------------------- Message sent: From: iwj10@thor.cam.ac.uk (Ian Jackson) To: iwj10@cus.cam.ac.uk (Ian Jackson) Subject: Bug#737: Acknowledgement (was: gawk references to `$0' in END rule give previous record) In-Reply-To: References: Thank you for the problem report you have sent regarding Debian GNU/Linux. This is an automatically generated reply, to let you know your message has been received. It is being forwarded to the developers' mailing list for their attention; they will reply in due course. If you wish to submit further information on your problem, please send it to debian-bugs@pixar.com, but please ensure that the Subject line of your message starts with "Bug#737" or "Re: Bug#737" so that we can identify it as relating to the same problem. Please do not reply to the address at the top of this message, unless you wish to report a problem with the bug-tracking system. Ian Jackson (maintainer, debian-bugs) ----------------------------------------------------------------------- Ian Jackson / iwj10@thor.cam.ac.uk , with the debian-bugs tracking mechanism This page last modified 07:43:01 GMT Wed 01 Nov