RE: RE:Markup query

[Peter Gentry]

>-----Original Message-----
>From: Davide Liessi [mailto:address@hidden 
>Sent: Friday, September 07, 2012 11:44 AM
>To: Peter Gentry
>Cc: address@hidden
>Subject: Re: RE:Markup query
>
>Hi Peter.
>
>2012/9/7 Peter Gentry <address@hidden>:
>>>> As a small example setting various swiches true/false in the
>>>paper block often seems to have no effect - I guess the 
>reason is that
>>>> those switches are irrelevant in the context.
>>>
>
>
>Regarding the page number problem, you should place 
>"\on-the-fly #print-page-number-check-first" immediately 
>before "\fromproperty #'page:page-number-string".
>
>\on-the-fly checks if a condition is true and in that case it 
>prints the markup that immediately follows: you were applying 
>\on-the-fly check to \null.
>
>See Notation Reference, section 3.2.2 "Custom headers footers 
>and titles", subsection "Custom layout for headers and 
>footers" for a more precise definition of \on-the-fly 
>behaviour and for a list of other conditions that can be checked.
>
>Best wishes,
>Davide

Thanks I had wondered what \null was there for your explanation has done the 
trick.