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Write a filter to find all tiddlers that do not link to a tiddler that has a tag which is both red and begins with the letter C, sorted by title in reverse alphabetical order.
Consider a “red” tag to be one with a color code of #ff0000
, as in Classifying Tags.
English is terrible at expressing complicated conditions like this, so to be sure you read it right, here's the sentence decomposed hierarchically and written more precisely:
Tip 1: The prefix
operator returns items from its input whose title begins with a given string of text.
Tip 2: The is[]
filter step will find all (non-shadow) tiddlers in the wiki.
A quick way to test your answer is to add a link from a tiddler that appears in the output to any contact; the tiddler should disappear from the list since it's now linking to a tiddler that has a red tag whose name begins with C.