[mv] UI: interpolating usertags

[Ton Verhagen <ton@verhagen.net>]

******    message to minivend-users from Ton Verhagen <ton@verhagen.net>     ******

Hi all,

I am wondering how to have the IC UI interpolate the results of an usertag.

Here is my problem.

I added the following code to a template. It will generate a select box 
with the options hdr1.gif ... hdr6.gif. So far so good.

page_picture:
	description: Page picture
	widget: select
	options: hdr1.gif, hdr2.gif, hdr3.gif, hdr4.gif, hdr5.gif, hdr6.gif

However, instead of having to type a (static) list of image file names I 
would like to use a usertag which generates the list dynamically. I already 
have an usertag that does return the options string as in the above 
mentioned code. Unfortunately the IC UI treats this whole string as one 
single option. Obvioulsly the UI executes the usertag properly, but doesn't 
interpolate the returned string.
How to go about? Maybe I have overlooked something very obvious.

Hopefully someone has any ideas or pointers.

Thanks for any help.

Ton Verhagen

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