[Conquery] Is there an or operator in conquery?

[Colin Gillespie]

Dear All,

I want to create a conquery function that allows the user to choose
either a page or a page link. For example

<search
    name="test"
    description="test"
    action="http://localhost/conquery/"
    category="scientific"
    method="POST" 
>
<input name="sourceid" value="Mozilla-search">
<input name="urlAddress" value="[:linkurl||:url]">
</search>

So the above fragment would pass a link if one was chosen, but if no
link is chosen then it would pass the page url.

Thanks

Colin