Using prefixes looks a bit redundant. I would rather give every platform-type a tag *platform* and then construct the filter based off of that, e.g....
[tag[platform]tagging[]] [tag[output-format]tagging[]] ...and then only use mac, linux windows ...or the corresponding mime types as titles. Best wishes, — tb -- 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 http://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/f732ca10-3d71-4976-af9a-4cb651eca927%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

