From: Sami Kerola <kerolasa@iki.fi>
To: util-linux@vger.kernel.org
Cc: kerolasa@iki.fi
Subject: [PATCH] docs: column.1 describe change of separator behavior in bugs section
Date: Sat, 29 Sep 2012 10:21:59 +0100 [thread overview]
Message-ID: <1348910519-10684-1-git-send-email-kerolasa@iki.fi> (raw)
In-Reply-To: <1348692336-21301-1-git-send-email-kerolasa@iki.fi> <50636D1D.3080007@draigBrady.com>
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Add to manual page how to achieve old behavior, just in case someone
relies on buggy behavior of the command.
Reported-by: Pádraig Brady <P@draigbrady.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
---
text-utils/column.1 | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/text-utils/column.1 b/text-utils/column.1
index 2050666..775c73b 100644
--- a/text-utils/column.1
+++ b/text-utils/column.1
@@ -65,6 +65,35 @@ the screen if no other information is available.
.nf
sed 's/#.*//' /etc/fstab | column -t
.nf
+.SH BUGS
+The util-linux version 2.23 changed
+.B \-s
+option to be non-greedy. The change made the following output
+.PP
+.EX
+$ printf "a:b:c\n1::3\n" | column -t -s ':'
+a b c
+1 3
+.EE
+.PP
+to be
+.PP
+.EX
+$ printf "a:b:c\n1::3\n" | column -t -s ':'
+a b c
+1 3
+.EE
+.PP
+If there is need to use greedy separator the old behavior can be achieved
+by filtering with
+.BR sed (1).
+.PP
+.EX
+$ printf "xzcatxzdog\\ndonkeyxzzxkong\\n" |
+> sed 's/^[xz]*//
+> s/[xz]\\+/x/g' |
+> column -t -s xz
+.EE
.SH "SEE ALSO"
.BR colrm (1),
.BR ls (1),
--
1.7.12.1
next prev parent reply other threads:[~2012-09-29 9:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-26 20:45 [PATCH] column: make defined separator to be non-greedy Sami Kerola
2012-09-26 21:01 ` Pádraig Brady
2012-09-29 9:21 ` Sami Kerola [this message]
2012-09-29 10:23 ` [PATCH] docs: column.1 describe change of separator behavior in bugs section Pádraig Brady
2012-09-29 12:49 ` Sami Kerola
2012-10-02 8:45 ` Karel Zak
2012-10-02 8:29 ` [PATCH] column: make defined separator to be non-greedy Karel Zak
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