On Friday, February 21, 2014 11:44:48 PM UTC-8, whatever wrote:
>
> If I understand correctly, you want this to execute every time the tiddler
> tags contain the tiddler's title?
> If so, this should work: where 'tiddler.tags.contains(tiddler.title)'
>
In his example, Anton said that the tiddler named "Locations" has
<<forEachTiddler where 'tiddler.tags.contains("Locations")'
i.e, find tiddlers tagged with the title of the tiddler that contains the
<<forEachTiddler>> macro.
However, in your suggestion:
<<forEachTiddler where 'tiddler.tags.contains(tiddler.title)'
will find tiddlers tagged with their *own* title, rather than the title of
the containing tiddler.
One way to achieve the desired result is to use <<tiddler>> transclusion
with 'parameter substitution'...
First, create a tiddler, [[InvokeParameterizedForEach]], containing:
------------
<<forEachTiddler
where 'tiddler.tags.contains("$1")'
...
>>
-------------
Then, create a tiddler named [[Locations]], containing:
<<tiddler InvokeParameterizedForEach with: {{tiddler.title}}>>
When the <<tiddler>> transclusion is processed, the current
{{tiddler.title}} value (e.g., "Locations") with be inserted in place of
the $1 that is in [[InvokeParameterizedForEach]].
The <<tiddler ... with: param param ...>> macro syntax can accept up to 9
parameters corresponding to $1 through $9 substitution markers in the
target tiddler. Thus, you could also parameterize the rest of the where
clause as well as the action/display clause using the same <<tiddler>>
transclusion method. Caveat: as you've already noted, using quotes to
delimit parameters becomes problematic when the parameter values themselves
contain quotes. One possible workaround: TWC macro params can be "quoted"
by using doubled-square brackets. Thus:
<<tiddler Tiddlername with: [[first param value]] [[second param]]
[[third param]] ... >>
That should be enough to get you started.... let me know if you get
stuck....
enjoy,
-e
Eric Shulman
TiddlyTools / ELS Design Studios
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