Thank you very much for the explanation! This was very helpful.
On Monday, November 2, 2020 at 11:57:27 AM UTC-7, Mark S. wrote:
>
> The $variable$ variables only work with parameters from the macro -- you
> can't assign them inside the macro.
>
> For variables that you create, you have to use the <>
> nomenclature, except inside a filter expression in which case you can use
> operator nomenclature.
>
> Just to confuse things more, inside your macro you could also refer to the
> parameters like this
>
> <<__title__>> and <<__label__>>
>
> This will get the default the way you want. I'm not sure why you're using
> the text widget instead of just placing the text, but anyways ...
>
> \define mymac(title,label)
>
> <$text text="""Title: $title$"""/>
>
> <$text text="""Label: $label$"""/>
>
>
> <$set name="label" filter="$label$" value="$label$"
> emptyValue="""$title$""">
> <$text text="""Title: $title$"""/>
>
> <$text text="""Label: """/>
> <$text text=<>/>
>
>
>
> \end
>
> <>
>
>
>
> On Monday, November 2, 2020 at 9:53:13 AM UTC-8, Jon Dyer wrote:
>>
>> I think I'm not understanding something essential about access to
>> variables vs. params in macros and Wikitext. Suppose in a macro I'm writing
>> I want one variable to default to the value of another if it isn't present.
>> I've tried to use the SetWidget to make this work, but no matter what I try
>> I can't seem to overwrite the parameter value with what I have in the
>> <$set...> part. Can you tell what I'm doing wrong?
>>
>> For a concrete example:
>>
>> \define mymac(title,label)
>>
>> <$text text="""Title: $title$"""/>
>>
>> <$text text="""Label: $label$"""/>
>>
>>
>> <$set name="label" filter="$label$" value="$label$"
>> emptyValue="""$title$""">
>> <$text text="""Title: $title$"""/>
>>
>> <$text text="""Label: $label$"""/>
>>
>>
>> \end
>>
>> <>
>>
>>
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