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From: "Andrey A. Chernov" <ache@FreeBSD.org>
Date: Thu, 14 Jul 2016 09:26:53 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r302827 - head/usr.bin/tr
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Author: ache
Date: Thu Jul 14 09:26:53 2016
New Revision: 302827
URL: https://svnweb.freebsd.org/changeset/base/302827

Log:
  Optimize [Cc]flag case: don't repeatedly add the last character of
  string2 to squeeze cset when string2 reach its EOS state.

Modified:
  head/usr.bin/tr/tr.c

Modified: head/usr.bin/tr/tr.c
==============================================================================
--- head/usr.bin/tr/tr.c	Thu Jul 14 09:24:55 2016	(r302826)
+++ head/usr.bin/tr/tr.c	Thu Jul 14 09:26:53 2016	(r302827)
@@ -272,10 +272,11 @@ endloop:
 			if (Cflag && !iswrune(cnt))
 				continue;
 			if (cmap_lookup(map, cnt) == OOBCH) {
-				if (next(&s2))
+				if (next(&s2)) {
 					cmap_add(map, cnt, s2.lastch);
-				if (sflag)
-					cset_add(squeeze, s2.lastch);
+					if (sflag)
+						cset_add(squeeze, s2.lastch);
+				}
 			} else
 				cmap_add(map, cnt, cnt);
 			if ((s2.state == EOS || s2.state == INFINITE) &&