Hi Måns,
I suspect the only way to achieve this at present is to use a JavaScript
macro.
You can generate the desired string via *<$list
filter="[list[ThisTiddler!!listfield]]">{{!!title}} </$list>*. And if you
define a macro *m* with that as its value, you can then say *<$macrocall
$name="m" $output="text/plain"/>* to obtain the string as plain text.
But you can't pass a macrocall widget as an argument to a macro, i.e. you
*can't* say:
*<$macrocall $name="sentences" category="All items" sentences=<$macrocall
$name="m" $output="text/plain"/>/>*
This is because you can't pass one widget as an attribute to another.
It would be brilliant if the macrocall widget provided a way to assign its
result to a specified variable. You'd then be able say things like this:
*<$macrocall $name="m" $output="text/plain" $variable="sentences">*
*<$macrocall $name="sentences" category="All items"
sentences=<<sentences>>/>*
*</$macrocall>*
I can think of lots of places where that would be extremely useful.
The set widget has a filter option which almost does what you want:
*<$set name="sentences" filter=*
*"[list[ThisTiddler!!listfield]]">*
*<$macrocall $name="sentences" category="All items"
sentences=<<sentences>>/>*
*</$set>*
But it has the side effect of wrapping double square brackets round any
items that contain spaces, which rather defeats the point here.
It would be nice if there was a *join* filter operator for performing
concatenation (with a separator as its parameter), so you could say this:
*<$set name="sentences" filter=**"[list[ThisTiddler!!listfield]join[ ]]">*
*<$macrocall $name="sentences" category="All items"
sentences=<<sentences>>/>*
*</$set>*
– æ
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