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 <<variable>> nomenclature, except inside a filter expression in which case you can use operator<variable> 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: $title$"""/> <br> <$text text="""Label: $label$"""/> <br> <$set name="label" filter="$label$" value="$label$" emptyValue="""$title$"""> <$text text="""Title: $title$"""/> <br> <$text text="""Label: """/> <$text text=<<label>>/> </$set> \end <<mymac title:"test" >> On Monday, November 2, 2020 at 9:53:13 AM UTC-8, Jon Dyer wrote: > > I think I'm not understanding something essential about access to > variables vs. params in macros and Wikitext. Suppose in a macro I'm writing > I want one variable to default to the value of another if it isn't present. > I've tried to use the SetWidget to make this work, but no matter what I try > I can't seem to overwrite the parameter value with what I have in the > <$set...> part. Can you tell what I'm doing wrong? > > For a concrete example: > > \define mymac(title,label) > > <$text text="""Title: $title$"""/> > <br> > <$text text="""Label: $label$"""/> > <br> > > <$set name="label" filter="$label$" value="$label$" > emptyValue="""$title$"""> > <$text text="""Title: $title$"""/> > <br> > <$text text="""Label: $label$"""/> > </$set> > > \end > > <<mymac title:"test" label:"hello">> > > -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/4084d0e9-6535-4f2a-9772-9fbb76de4cdfo%40googlegroups.com.
