Date: Wed, 16 Aug 2017 17:42:55 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 218811] graphics/libglapi: fails to build with bsdgrep Message-ID: <bug-218811-8-Y3zwf1H1NB@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-218811-8@https.bugs.freebsd.org/bugzilla/> References: <bug-218811-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D218811 --- Comment #12 from commit-hook@freebsd.org --- A commit references this bug: Author: kevans Date: Wed Aug 16 17:42:39 UTC 2017 New revision: 322583 URL: https://svnweb.freebsd.org/changeset/base/322583 Log: MFC r317665: bsdgrep: fix -w -v matching improperly with certain patterns -w and -v flag matching was mostly functional but had some minor problems: 1. -w flag processing only allowed one iteration through pattern matching on a line. This was problematic if one pattern could match more than once, or if there were multiple patterns and the earliest/ longest match was not the most ideal, and 2. Previous work "fixed" things to not further process a line if the first iteration through patterns produced no matches. This is clearly wrong if we're dealing with the more restrictive -w matching. #2 breakage could have also occurred before recent broad rewrites, but it would be more arbitrary based on input patterns as to whether or not it actually affected things. Fix both of these by forcing a retry of the patterns after advancing just past the start of the first match if we're doing more restrictive -w matching and we didn't get any hits to start with. Also move -v flag processing outside of the loop so that we have a greater change to match in the more restrictive cases. This wasn't strictly wrong, but it could be a little more error prone. While here, introduce some regressions tests for this behavior and fix some excessive wrapping nearby that hindered readability. GNU grep passes these new tests. PR: 218467, 218811 Approved by: emaste (mentor, blanket MFC) Changes: _U stable/11/ stable/11/contrib/netbsd-tests/usr.bin/grep/t_grep.sh stable/11/usr.bin/grep/util.c --=20 You are receiving this mail because: You are the assignee for the bug.=
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