Thank you very much Saq! (I assume you meant to put idListRegexp in curly 
braces?)

I have kind of a follow up question:

What if instead of using search terms as identifiers, I instead used 
filters. So for example I might have a tiddler with 
identifier:[search[my-example]] or identifier:[tag[Hello]].

Then I would want to return all tiddlers that don't satisfy *any* of the 
filters listed in an identifier field. Is there a way to do this?
On Saturday, 10 July 2021 at 16:11:09 UTC+1 saq.i...@gmail.com wrote:

> Assuming your identifiers are alphanumeric and do not contain characters 
> that might need to be escaped in regular expressions, something like this 
> should work:
>
> <$vars idListRegexp="[tag[Flashcard]get[identifier]join[|]]">
> <$list filter="[all[tiddlers]!regexp<idListRegexp>]">
> <<currentTiddler>>
> </$list>
> </$vars>
>
> On Saturday, July 10, 2021 at 4:47:58 PM UTC+2 Si wrote:
>
>> Best explained with an example:
>>
>> I have a bunch of tiddlers tagged Flashcard, each with a field identifier 
>> containing some text.
>>
>> I want to return all the tiddlers that do not feature the values of *any* 
>> identifier fields within their text.
>>
>> Initially I tried the following:
>>
>> <$list filter="[tag[Flashcard]get[identifier]]" 
>> variable=flashcardIdentifier>
>>     <$list filter="[!search<flashcardIndicator>]">
>>         <<currentTiddler>>
>>     </$list>
>> </$list>
>>
>> Of course this doesn't work because it is applying the search one at a 
>> time and is thus returning the tiddlers that don't contain *all* the 
>> identifiers. I want to return the tiddlers that don't contain *any* 
>> identifiers.
>>
>> Anyway now I'm stuck, so I'm wondering if anyone can help me out?
>>
>

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