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| author | Paul Eggert <eggert@cs.ucla.edu> | 2006-01-03 06:00:10 +0000 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2006-01-03 06:00:10 +0000 |
| commit | 6023a621486813148ff6117dd2992111ab1ca1b2 (patch) | |
| tree | 0554b5e914a46f339cdd58aaa8830cfa48099511 /doc | |
| parent | d290c45ca9b50cc7b6492c65cff6d635a8cf5ca5 (diff) | |
| download | coreutils-6023a621486813148ff6117dd2992111ab1ca1b2.tar.xz | |
(General date syntax): Invalid dates are rejected.
(Time of day items): Mention the possibility of leap seconds.
Problem reported by Dr. David Alan Gilbert.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/ChangeLog | 4 | ||||
| -rw-r--r-- | doc/getdate.texi | 14 |
2 files changed, 14 insertions, 4 deletions
diff --git a/doc/ChangeLog b/doc/ChangeLog index dbefc45a2..0694025bf 100644 --- a/doc/ChangeLog +++ b/doc/ChangeLog @@ -1,5 +1,9 @@ 2006-01-02 Paul Eggert <eggert@cs.ucla.edu> + * getdate.texi (General date syntax): Invalid dates are rejected. + (Time of day items): Mention the possibility of leap seconds. + Problem reported by Dr. David Alan Gilbert. + * coreutils.texi: Use @acronym around "ISO" uniformly. (Date conversion specifiers): Explain %g, %G, and %V a bit better. diff --git a/doc/getdate.texi b/doc/getdate.texi index 0150ff21f..919c2990d 100644 --- a/doc/getdate.texi +++ b/doc/getdate.texi @@ -1,7 +1,7 @@ @c GNU date syntax documentation @c Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, -@c 2003, 2004, 2005 Free Software Foundation, Inc. +@c 2003, 2004, 2005, 2006 Free Software Foundation, Inc. @c Permission is granted to copy, distribute and/or modify this document @c under the terms of the GNU Free Documentation License, Version 1.1 or @@ -144,6 +144,11 @@ between round parentheses, as long as included parentheses are properly nested. Hyphens not followed by a digit are currently ignored. Leading zeros on numbers are ignored. +Invalid dates like @samp{2005-02-29} or times like @samp{24:00} are +rejected. In the typical case of a host that does not support leap +seconds, a time like @samp{23:59:60} is rejected even if it +corresponds to a valid leap second. + @node Calendar date items @section Calendar date items @@ -238,7 +243,8 @@ a number between 0 and 23, @var{minute} is a number between 0 and @samp{.} or @samp{,} and a fraction containing one or more digits. Alternatively, @samp{:@var{second}} can be omitted, in which case it is taken to -be zero. +be zero. On the rare hosts that support leap seconds, @var{second} +may be 60. @findex am @r{in date strings} @findex pm @r{in date strings} @@ -464,8 +470,8 @@ integers and can represent times from 1901-12-13 20:45:52 through of seconds with nanosecond subcounts, and can represent all the times in the known lifetime of the universe to a resolution of 1 nanosecond. -On most systems, these counts ignore the presence of leap seconds. -For example, on most systems @samp{@@915148799} represents 1998-12-31 +On most hosts, these counts ignore the presence of leap seconds. +For example, on most hosts @samp{@@915148799} represents 1998-12-31 23:59:59 @sc{utc}, @samp{@@915148800} represents 1999-01-01 00:00:00 @sc{utc}, and there is no way to represent the intervening leap second 1998-12-31 23:59:60 @sc{utc}. |