How to use a parameter in a filter?

#1

Hello TW-Community,

I have simple question and I think I am (again) fighting to use the right brackets.
This is my simplified use case.
A procedure with a list.

\procedure show_fields(selector)
  <$list filter='[tag[<selector>]]'>
    <hr>
 </$list>
\end

And I call the procure with
<<show_fields "Main">>
But the list will not be generated as if I do

  <$list filter='[tag[Main]]'>

I searched here around and found

  <$list filter='[tag<selector>]'>

what is also not working.

Thx in advance
Stefan

#2

Try this:

\procedure show_fields(selector)
\whitespace trim
<$list filter='[tag<selector>]'>
    <<currentTiddler>>
    <hr>
</$list>
\end

<<show_fields HelloThere>>

As soon as you have a “body code” in the list widget, you have to define the body as a template.

#3

Hi @pmario,

thank you so far. This is working well:

<$list filter='[tag<selector>]'>

But if I add a sort is isn’t

<$list filter='[[tag<selector>]sort[title]]'>

Stefan

#4

The correct filter syntax is:

<$list filter='[tag<selector>sort[title]]'>

Notes:

  • A “filter run” is a sequence of “filter operators”.
  • Each filter run is enclosed in square brackets.

-e