Date: Wed, 13 Nov 2024 14:38:36 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 282714] /bin/sh doesn't report line numbers correctly when run with the PS4 environment variable Message-ID: <bug-282714-227-yhVTrGCZrk@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-282714-227@https.bugs.freebsd.org/bugzilla/> References: <bug-282714-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D282714 Ed Maste <emaste@freebsd.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |emaste@freebsd.org --- Comment #1 from Ed Maste <emaste@freebsd.org> --- There's a reference to LINENO in PS4 in: commit 292e6676632a8c0ec58ba6a005d2478aa57e799d Author: Jilles Tjoelker <jilles@FreeBSD.org> Date: Thu Jun 9 23:12:23 2011 +0000 sh: Do parameter expansion before printing PS4 (set -x). The function name expandstr() and the general idea of doing this kind of expansion by treating the text as a here document without end marker is from dash. All variants of parameter expansion and arithmetic expansion also work = (the latter is not required by POSIX but it does not take extra code and many other shells also allow it). Command substitution is prevented because I think it causes too much co= de to be re-entered (for example creating an unbounded recursion of trace lin= es). Unfortunately, our LINENO is somewhat crude, otherwise PS4=3D'$LINENO+ ' would be quite useful. --=20 You are receiving this mail because: You are the assignee for the bug.=
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