Date: Sat, 29 Apr 2017 14:18:34 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 218943] /bin/sh regression? with doubly negated numbers Message-ID: <bug-218943-8-xs9tZ6P0QK@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-218943-8@https.bugs.freebsd.org/bugzilla/> References: <bug-218943-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D218943 --- Comment #1 from Jilles Tjoelker <jilles@FreeBSD.org> --- The behaviour indeed changed, deliberately. What POSIX intends exactly may not be fully clear (see discussion on the Au= stin Group mailing list in March 2017), but it states that -- and ++ need not be supported. That is, they may be supported and $((--a)) may decrement a and expand to the decremented value. In order to avoid ambiguity, I changed sh such that it recognizes the -- an= d ++ tokens (following C's "maximal munch" rule) and reject them. If you want two minus signs in sequence, separate them with a space or use parentheses. --=20 You are receiving this mail because: You are the assignee for the bug.=
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