[xslt] Bug report: Related to EXSLT date:add( )

[money_seshu Dronamraju <mcseshu gmail com>]

 

Hi,

             

Problem description:  EXSLT date:add() adds days to xs:gYearMonth/xs:gYear  incorrectly when month is January

 

The following 2 expressions returns incorrect date:
   <xsl:value-of select="date:add( "2001-01", "P3D" )" />       -> returns 2001-01
   <xsl:value-of select="date:add( "2001", "P12D" )')" />        -> returns 2001

Ideally it should return   "2001-01-04" and "2001-01-13" respectively.

 

Root cause:

 

In  _exsltDateAdd(..,..) function ( libxslt/trunk/libexslt/date.c)

 

Because the month is January(1), "if" condition will never evaluate to true, even though the day was changed , so it never returns return type as XS_DATE

 

Patch: attached.

 

Please provide your  comments.

 

After the patch:

----------------------

  <xsl:value-of select="date:add( "2001-01", "P3D" )" />       -> returns 2001-01-04
  <xsl:value-of select="date:add( "2001", "P12D" )')" />        -> returns 2001-01-13

Thanks,

Satya

 

 

Attachment: date.diff
Description: Binary data