Within a macro, I am trying to determine if a parameter is empty, and then set a variable based on knowing that it is empty.
I came across the Google Group post from a last month: Check the Blank Macro parameter <https://groups.google.com/forum/?hl=en#!topic/tiddlywiki/82N15sAnoPs/discussion> \define mm(newField) <$list filter="[<__newField__>] -[[]]"> Do my job! </$list> \end <<mm test>> So I tried using something based on that. Pasting the below into a new tiddler on tiddlywiki.com shows the issue: \define test(tiddler) <$set name="result" filter="[[$tiddler$]] -[[]]" value="Why is this variable set when the filter ''is not missing'' and ''it's empty''?"> The description of the ''value'' attribute of the `$set` widget says: The value to assign to the variable if the filter is missing or ''//not empty//'' tiddler=$tiddler$ result=<<result>> <$list filter="[[$tiddler$]] -[[]]" emptyMessage="See, the filter shows it's Empty"> </$list> </$set> \end <<test>> I don't understand where I've gone wrong. I'd appreciate some advice. Thanks. -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/1867389e-59de-4b9e-b8e6-6ecd9212d92e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
