Folks,
Nice to here discussion of the double-underscore to convert a macro
parameter $parmname$ into a <<__parmname__>> variable.
We all need information that helps us understand and remember its
functionality, I think my first line above helps this but more work is
needed.
Double underscore in wiki text __underlines content__ but can be used to
convert a macro parameter $parmname$ into a <<__parmname__>> variable.
<<represents>> variables, and in filters <represents> the inclusion of
<<__parameterbecomesvariable__>> converts the parameter to a variable.
We however need more "why" not only "what" answers
I ask my self why
<$tiddler tiddler=<<__tiddler__>>>
Is better that or necessary instead of
<$tiddler tiddler="$tiddler$">
In fact I have often used $parameters$ to pass a string into a button
tooltip to avoid having to use the macrocall widget to permit variables,
and you can use $parameters$ to concatenate like
"$parameters$$otherparam$-suffix"
*WHY is the question we need to address a lot more in the documentation.*
Tony
On Tuesday, August 7, 2018 at 8:57:00 PM UTC+10, Stuart Amor wrote:
>
> Thank you Mat, that worked. The only reason I had two separate marcos was
> in desperation
>
> On Tuesday, 7 August 2018 11:39:09 UTC+1, Mat wrote:
>>
>> I'm unsure why you have two separate macro calls in your example.
>> Regardless, maybe this works:
>>
>>
>> \define image-inner() [img width=80 [$(caption)$|$(tiddler)$]]
>>
>> \define image(tiddler)
>> <$vars caption={{$tiddler$!!caption}} tiddler='$tiddler$' >
>> <<image-inner>>
>> </$vars>
>> \end
>>
>> <:-)
>>
>>
>>
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