OK, forget the "::" thing. I've switched to <templatelink>, like
this:
<templatelink>test|param1=value1|param2=value2</templatelink>
To give the link a name different from the template (in this case,
"Test"), use multiple lines:
<templatelink>
test|param1=value1|param2=value2
Click on this!
</templatelink>
Leading and ending newlines are ignored. First line is the template,
last line is the link title,
everything in between is currently ignored.
This should be clean enough, syntax-wise.
Cheers,
Magnus