filter=<<foo>> uses whatever is stored in the variable foo as the filter itself, filter=[<foo>] uses whatever is stored in the variable foo as an input title.
Some examples are probably more helpful: <$set name=foo value="""[tag[HelloThere]]"""> Set `foo="[tag[HelloThere]]"` ! Using `"[<foo>]"` <$list filter="[<foo>]"> </$list> ! Using `<<foo>>` <$list filter=<<foo>>> </$list> </$set> This lets you build filters using [<foo>] and then use that filter using <<foo>> -- 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/aa81e5f8-7d06-4877-859c-f030e2164460%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
