Date: Wed, 16 Aug 2017 10:14:46 +0900 From: KIRIYAMA Kazuhiko <kiri@kx.openedu.org> To: freebsd-current Current <freebsd-current@freebsd.org> Subject: BSD awk bug ? Message-ID: <201708160114.v7G1EkxS079546@kx.openedu.org>
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admin@tbedfpc:~/tmp % ll total 12 -rw-r--r-- 1 admin admin 235 Aug 16 10:01 regex-1.sh -rw-r--r-- 1 admin admin 236 Aug 16 10:01 regex-2.sh -rw-r--r-- 1 admin admin 260 Aug 16 10:01 regex.sh admin@tbedfpc:~/tmp % cat regex.sh #!/bin/sh data='1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 1 2 3' IFS=$'\n' for datum in $data; do if echo "$datum" | egrep -q '^([^[:space:]]+[[:space:]]+){5}'; then echo "$datum" else echo "Not 6 components! : \"$datum\"" fi done admin@tbedfpc:~/tmp % sh ./regex.sh 1 2 3 4 5 6 Not 6 components! : "1 2 3 4 5" 1 2 3 4 5 6 1 2 3 4 5 6 Not 6 components! : "1 2 3 4" Not 6 components! : "1 2 3" admin@tbedfpc:~/tmp % cat regex-1.sh #!/bin/sh _f_awk=' { if ($0 ~ /^([^[:space:]]+[[:space:]]+){5}/) { print $0 } else { print "Not 6 components! : \"" $0 "\"" } }' data='1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 1 2 3' echo "$data" | awk "$_f_awk" admin@tbedfpc:~/tmp % sh ./regex-1.sh Not 6 components! : "1 2 3 4 5 6" Not 6 components! : "1 2 3 4 5" Not 6 components! : "1 2 3 4 5 6" Not 6 components! : "1 2 3 4 5 6" Not 6 components! : "1 2 3 4" Not 6 components! : "1 2 3" admin@tbedfpc:~/tmp % cat regex-2.sh #!/bin/sh _f_awk=' { if ($0 ~ /^([^[:space:]]+[[:space:]]+){5}/) { print $0 } else { print "Not 6 components! : \"" $0 "\"" } }' data='1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 1 2 3' echo "$data" | gawk "$_f_awk" admin@tbedfpc:~/tmp % sh ./regex-2.sh 1 2 3 4 5 6 Not 6 components! : "1 2 3 4 5" 1 2 3 4 5 6 1 2 3 4 5 6 Not 6 components! : "1 2 3 4" Not 6 components! : "1 2 3" admin@tbedfpc:~/tmp % uname -a FreeBSD tbedfpc 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r321597: Thu Jul 27 12:30:57 UTC 2017 root@tbedfc:/usr/obj/usr/src/sys/GENERIC amd64 admin@tbedfpc:~/tmp % pkg info -aI|grep gawk gawk-4.1.4_1 GNU version of Awk admin@tbedfpc:~/tmp % Is this the BSD awk (/usr/bin/awk) bug ? --- KIRIYAMA Kazuhiko
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