Date: Mon, 31 Jul 2006 15:07:01 +0400 (MSD) From: Yar Tikhiy <yar@comp.chem.msu.su> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/101094: sh(1) can show wrong line numbers in its diagnostic messages Message-ID: <200607311107.k6VB71HR072264@jujik.ramtel.ru> Resent-Message-ID: <200607311110.k6VBAGrw054478@freefall.freebsd.org>
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>Number: 101094 >Category: bin >Synopsis: sh(1) can show wrong line numbers in its diagnostic messages >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Jul 31 11:10:09 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Yar Tikhiy >Release: FreeBSD 7.0-CURRENT i386 >Organization: None >Environment: System: FreeBSD jujik.ramtel.ru 7.0-CURRENT FreeBSD 7.0-CURRENT #6: Tue Jun 27 14:45:05 MSD 2006 glebius@jujik.ramtel.ru:/usr/obj/usr/src/sys/JUJIK i386 >Description: sh(1) tries to keep track of the number of the current line in the current script file. The main use of this is in diagnostic messages, such as "%s: %d: Syntax error ...", which come very helpful when debugging complex scripts. However, the line numbering is broken as soon as a line continuation is encountered. >How-To-Repeat: Example 1: %cat -b test.sh 1 foo="\ 2 1\ 3 2\ 4 3\ 5 " 6 esac %sh -n test.sh test.sh: 2: Syntax error: "esac" unexpected Example 2: %cat -b test2.sh 1 echo \ 2 1\ 3 2\ 4 3\ 5 4 6 esac %sh -n test2.sh test2.sh: 3: Syntax error: "esac" unexpected In both cases, the error actually was in line 6. On the other hand: %cat -b test3.sh 1 echo \ 2 1 \ 3 2 \ 4 3 \ 5 4 6 esac %sh -n test3.sh test3.sh: 6: Syntax error: "esac" unexpected In this case, the line number is correct. Perhaps the problem appears when a single shell word is split across multiple lines. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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