I want to build a transclusion from the text of one tiddler and the
returned lookup value from a data tiddler. For example. I want to build and
evaluate ``{{drill##101}}`` and get ``P01.02.03`` from the following pieces:
* ``{{AplicationChoice}}`` evaluates to or contains ``drill``, and
* Data tiddler ``drill`` has an entry ``101:P01.02.03``, and
* ``{{ID101!!idnumber}}`` is ``101``, and
* I want to do this transclusion from the ``ID101`` tiddler (or from other
ID tiddlers with different ID numbers).
Conceptually, from tiddler ID101 I'd like to evaluate ``
{{ApplicationChoice##{{!!idnumber}}}}`` and get ``P01.02.03`` ... but that
isn't working. I'll admit to not well understanding use of braces, square
brackets, angle brackets and spacing to control evaluation of text.
***Background
There are tiddlers for each of the multiple IDs (e.g., ID101, ID102, ID103,
...), and data tiddlers for each of the multiple applications (e.g., drill,
saw, hammer, ...). There are multiple Ps (e.g., P01.01.01, P03.01,
P03.01.04, ...) but no tiddlers are defined for each P number. I select the
current application by using a selection list to put the selected
application into tiddler ``ApplicationChoice``. I want the ID number
tiddlers to display their associated P number based on the selected
application.
Note that the ID number and the P number are different, separate from each
other, and have a many-to-many relationship. The particular relationship to
use is based on the application chosen (e.g., drill, or saw, or hammer), so
I can't put a constant ID number field in P tiddlers, and I can't put a
constant P number field in the ID number tiddlers. This relationship has
been provided to me and I can't change it. P numbers are used to navigate
an interface (they are the screen name), and ID numbers contain the actual
nuggets of information.
Thanks ahead of time for any suggestions!
~Mark Hylton
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