114 lines
4.0 KiB
Diff
114 lines
4.0 KiB
Diff
From 9d9cdfd5df898ade2e680aab5ce37fcd0032c687 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?P=C3=A1draig=20Brady?= <P@draigBrady.com>
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Date: Wed, 19 Dec 2012 19:27:10 +0000
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Subject: [PATCH] seq: fix newline output when -s specified
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This regression was introduced in commit v8.19-132-g3786fb6.
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* src/seq.c (seq_fast): Don't use puts() to output the first number,
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and instead insert it into the buffer as for other numbers.
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Also output the terminator unconditionally.
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* tests/misc/seq.pl: Add some basic tests for the -s option.
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* NEWS: Mention the fix.
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* THANKS.in: Reported by Philipp Gortan.
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---
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NEWS | 4 ++++
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THANKS.in | 1 +
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src/seq.c | 20 +++++++++++++-------
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tests/misc/seq.pl | 5 +++++
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4 files changed, 23 insertions(+), 7 deletions(-)
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diff --git a/NEWS b/NEWS
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index e4472df..ae7ec2a 100644
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--- a/NEWS
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+++ b/NEWS
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@@ -43,6 +43,10 @@ GNU coreutils NEWS -*- outline -*-
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the output numbers are properly aligned and of the correct width.
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[This bug was present in "the beginning".]
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+ seq -s now doesn't output an erroneous newline after the first number, and
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+ outputs a newline after the last number rather than a trailing separator.
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+ [bug introduced in coreutils-8.20]
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+
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** Changes in behavior
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df --total now prints '-' into the target column (mount point) of the
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diff --git a/THANKS.in b/THANKS.in
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index c2651e7..67b60b9 100644
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--- a/THANKS.in
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+++ b/THANKS.in
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@@ -505,6 +505,7 @@ Phil Richards phil.richards@vf.vodafone.co.uk
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Philippe De Muyter phdm@macqel.be
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Philippe Schnoebelen Philippe.Schnoebelen@imag.fr
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Phillip Jones mouse@datastacks.com
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+Philipp Gortan gortan@gmail.com
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Philipp Thomas pth@suse.de
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Piergiorgio Sartor sartor@sony.de
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Pieter Bowman bowman@math.utah.edu
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diff --git a/src/seq.c b/src/seq.c
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index 9c2c51f..108808b 100644
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--- a/src/seq.c
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+++ b/src/seq.c
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@@ -419,30 +419,36 @@ seq_fast (char const *a, char const *b)
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bool ok = cmp (p, p_len, q, q_len) <= 0;
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if (ok)
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{
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- /* Buffer at least this many output lines per fwrite call.
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+ /* Buffer at least this many numbers per fwrite call.
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This gives a speed-up of more than 2x over the unbuffered code
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when printing the first 10^9 integers. */
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enum {N = 40};
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char *buf = xmalloc (N * (n + 1));
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char const *buf_end = buf + N * (n + 1);
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- puts (p);
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char *z = buf;
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+
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+ /* Write first number to buffer. */
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+ z = mempcpy (z, p, p_len);
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+
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+ /* Append separator then number. */
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while (cmp (p, p_len, q, q_len) < 0)
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{
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+ *z++ = *separator;
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incr (&p, &p_len);
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z = mempcpy (z, p, p_len);
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- *z++ = *separator;
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- if (buf_end - n - 1 < z)
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+ /* If no place for another separator + number then
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+ output buffer so far, and reset to start of buffer. */
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+ if (buf_end - (n + 1) < z)
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{
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fwrite (buf, z - buf, 1, stdout);
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z = buf;
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}
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}
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- /* Write any remaining, buffered output. */
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- if (buf < z)
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- fwrite (buf, z - buf, 1, stdout);
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+ /* Write any remaining buffered output, and the terminator. */
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+ *z++ = *terminator;
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+ fwrite (buf, z - buf, 1, stdout);
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IF_LINT (free (buf));
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}
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diff --git a/tests/misc/seq.pl b/tests/misc/seq.pl
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index 447baa4..416b839 100755
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--- a/tests/misc/seq.pl
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+++ b/tests/misc/seq.pl
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@@ -128,6 +128,11 @@ my @Tests =
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['long-leading-zeros2', qw(000 02), {OUT => [qw(0 1 2)]}],
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['long-leading-zeros3', qw(00 02), {OUT => [qw(0 1 2)]}],
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['long-leading-zeros4', qw(0 02), {OUT => [qw(0 1 2)]}],
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+
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+ # Exercise the -s option, which was broken in 8.20
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+ ['sep-1', qw(-s, 1 3), {OUT => [qw(1,2,3)]}],
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+ ['sep-2', qw(-s, 1 1), {OUT => [qw(1)]}],
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+ ['sep-3', qw(-s,, 1 3), {OUT => [qw(1,,2,,3)]}],
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);
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# Append a newline to each entry in the OUT array.
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--
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1.7.6.4
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