[Octave-bug-tracker] [bug #45635] Restore support for ISO8601 basic calendar date

[Alexander List]

URL:
  <http://savannah.gnu.org/bugs/?45635>

                 Summary: Restore support for ISO8601 basic calendar date
                 Project: GNU Octave
            Submitted by: alexlist
            Submitted on: Mon 27 Jul 2015 08:16:14 AM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Other
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

Changeset 13848 (40e32fe44aaa) [1] fixing bug #34586 [2] also included this
change:

-    dateform{30} = "yyyymmdd";
+    dateform{30} = "yyyy-mm-dd";

This means that dateform{30} was changed from ISO 8601 basic calendar date to
ISO 8601 extended calendar date.
https://en.wikipedia.org/wiki/ISO_8601#Calendar_dates
http://www.cl.cam.ac.uk/~mgk25/iso-time.html

The description of the changeset and the bug do not contain a hint that this
was intended, and it means an incompatible change:

octave:1> test=datestr("2005-12-31")
test = 31-Dec-2005
octave:2> test=datestr("20051231")
error: datevec: none of the standard formats match the DATE string
error: called from:
error:   /usr/share/octave/3.8.2/m/time/datevec.m at line 133, column 11
error:   /usr/share/octave/3.8.2/m/time/datestr.m at line 181, column 7

We suggest that the basic format is added back in, to restore backwards
compatibility.

The attached patch is against a checkout from hg clone
http://www.octave.org/hg/octave done today.

[0] http://hg.savannah.gnu.org/hgweb/octave/rev/40e32fe44aaa
[1] http://savannah.gnu.org/bugs/?34586




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File Attachments:


-------------------------------------------------------
Date: Mon 27 Jul 2015 08:16:14 AM GMT  Name: datestr.diff  Size: 1kB   By:
alexlist

<http://savannah.gnu.org/bugs/download.php?file_id=34533>

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