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14 lines
698 B
Plaintext
14 lines
698 B
Plaintext
created: 20150117204109000
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modified: 20150124185709000
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tags: Concepts
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title: Absolute Operators
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type: text/vnd.tiddlywiki
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The output of a [[filter|Filters]] step depends on its [[operator|Filter Operators]]:
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* Most operators perform <<.def relative>> to their input. They examine each input title in turn and filter out any that don't match. Such steps narrow down the output of a run.
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* <<.def Absolute>> operators ignore their input and generate an independent output instead.
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A good example of an absolute operator is <<.olink title>>. The output of `[title[A]title[B]]` is just <<.tid B>>. But the <<.olink field>> operator is relative, so `[title[A]field:title[B]` outputs nothing at all.
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