On Wednesday, June 3, 2020 at 11:52:31 PM UTC-7, amreus wrote: > > It wasn't immediately obvious to me that "filter operators" were not all > filters - that there are different functions. For example "all" is a filter > op that *generates* a list and "is" is a filter op that *filters *a list. >
A filter operator that *generates* a list is called a "selection constructor", while a filter operator that *derives its output from its input* is called a "selection modifier". This is briefly explained here: https://tiddlywiki.com/#Selection%20Constructors <https://tiddlywiki.com/#Selection%20Constructors:%5B%5BSelection%20Constructors%5D%5D%20%5B%5Btitle%20Operator%5D%5D> . Only a few filter operators are "selection constructors". You can see the list of constructors by using $:/AdvancedSearch filter to search for "[tag[Selection Constructors]]". enjoy, -e -- 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/440823bd-d499-4f78-b7cb-df8d204ef79d%40googlegroups.com.
