Sorry, I've realized there's a simpler and more efficient solution than
what I suggested there. It's:
<$list filter=<<formula """ *join("+",
[your_filter_construction_filter_here[]])* """>> >
{{!!title}}<br/>
</$list>
Testable in Formulas wiki:
<$list filter=<<formula """ "[title[" & join("]] [title[", [tag[Syntax]]) &
"]]" """>> >
{{!!title}}<br/>
</$list>
On Sunday, December 2, 2018 at 10:44:01 PM UTC-6, Evan Balster wrote:
>
> Hello, h0p3 —
>
> In case the wikify approach proves to be a little too complex, I will
> suggest you might be able to construct and run filters a little more
> concisely with my Formula plugin
> <http://evanbalster.com/tiddlywiki/formulas.html>! I wrote it to make
> more advanced calculations easier to do in TiddlyWiki.
>
> I don't have a bunch of filter pieces in that wiki, but we can fake it
> with this formula:
>
> *"[title[" & join("]] [title[", [tag[Syntax]]) & "]]"*
>
> You can test this on the landing page of my wiki. This expression makes a
> "title" filter step for every Syntax-tagged tiddler in my wiki and joins
> them all together, producing a filter string. We could put that into a
> variable with the $formula-vars
> <http://evanbalster.com/tiddlywiki/formulas.html#FormulaVarsWidget>
> widget, but it's also possible to construct and run the filter in one
> expression:
>
> join("<br>", datum(*"(= *[title[" & join("]] [title[", [tag[Syntax]]) &
> "]]* =)"*))
>
> In your case you'll probably want to be applying the filters in series
> rather than adding their results together, so you'll probably want a plus
> or minus as suggested by Jed. You might want to enclose the results of the
> final filter in [[brackets]] so the list widget can understand them. So
> your final formula might be something like this:
>
> *"[[" &* join(*"]] [["*, datum("(=" & join("*+*",
> [your_filter_construction_filter_here[]]) & "=)"))* & **"]]"*
>
> If I dust the plugin off for more development, I might have to add some
> new functions to make this sort of thing less hacky...
>
>
> On Saturday, December 1, 2018 at 1:12:45 PM UTC-6, h0p3 wrote:
>>
>> TonyM and Jed, thank you for your help!
>>
>> You have given us several approaches and ideas to think about. We are
>> indebted to you.
>>
>> We're working on it. It may be a while (this is no small task for us). If
>> we run into more trouble, we'll let you know.
>>
>> It was https://ooktech.com/jed/ExampleWikis/FilterLogicExamples/ and my
>> heavy use of Tiddlytool that caused me to think this GUI would be useful in
>> my context. I am curious to know what you will be updating in 5.1.18.
>>
>>
>>
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