Re: [xml] date-time strangeless last night

[Daniel Veillard <veillard redhat com>]

On Sun, Oct 01, 2006 at 08:07:57AM -0400, Christopher R. Palmer wrote:
> Last night, date:seconds() started returning invalid values. To test I 
> created a simple stylesheet that simply printed
> 
> <xsl:value-of select="date:seconds()"/>
> 
> It printed a time from the day before.  Coincidentally, this started 
> happening after 8pm EDT which would be when my time was in September and 
> the GM time was in October.  The code (line 791 of 1.1.17) looks pretty 
> suspicious to me:
> 
>      ret->value.date.tzo = (((ret->value.date.day * 1440) +
>                              (ret->value.date.hour * 60) +
>                               ret->value.date.min) -
>                             ((gmTm->tm_mday * 1440) + (gmTm->tm_hour * 60) +
>                               gmTm->tm_min));
> 
> which seems to be computing the seconds between localtime and gmtime.  With 
> no mention of month I can't see how that is right...  I assume something 
> similar but worse will happen at the end of the year.
> 
> I can reproduce this problem by adding
> 
> secs = 1159664596;
> 
> immediately after the call to time(NULL) in exsltDateCurrent while running 
> the software on a machine in EDT.  When I do this, the value of tzo is 2000 
> while the correct value should be -240.

  Okay, sounds like a bug, make sure you were using the latest libxml2
as some ofddities in date and time have been fixed in the last year, and
if this is the case please create a bugzilla entry.

  thanks !

Daniel

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