Correction:

 test="(preceding-sibling::A[1]|preceding-sibling::B[1])[last()][self::B]" 

MK

> -----Original Message-----
> From: Michael Kay [mailto:mike@xxxxxxxxxxxx] 
> Sent: 22 January 2005 17:45
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: RE:  preceding A or B which comes first
> 
> test="(preceding-sibling::A[1]|preceding-sibling::B[1])[self::B]"
> 
> Michael Kay
> http://www.saxonica.com/ 
> 
> > -----Original Message-----
> > From: Jim_Albright@xxxxxxxxxxxx [mailto:Jim_Albright@xxxxxxxxxxxx] 
> > Sent: 22 January 2005 17:32
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject:  preceding A or B which comes first
> > 
> > <B></B>
> > <A></A>
> > <A></A>
> > <B></B>
> > <A></A>
> > <A></A>
> > <B></B>
> > <C></C>
> > <A></A>
> > 
> > At <A>, I want to do something based on the condition that 
> > <B> precedes 
> > <A> with no intervening <A>.
> > 
> > <B></B>
> > <A></A> True
> > <A></A> False
> > <B></B>
> > <A></A> True
> > <A></A> False
> > <A></A> False
> > <B></B>
> > <C></C>
> > <A></A> True
> > 
> > I have been working with position but that doesn't seem to be 
> > the right 
> > thing.
> > 
> > Jim Albright
> > 704 843-0582
> > Wycliffe Bible Translators