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https://github.com/Jermolene/TiddlyWiki5
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24 lines
1.0 KiB
Plaintext
24 lines
1.0 KiB
Plaintext
created: 20140410103123179
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modified: 20150203184257000
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tags: [[Filter Operators]] [[Group Operators]]
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title: each Operator
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type: text/vnd.tiddlywiki
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caption: each
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op-purpose: select one of each group of input titles by field
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op-input: a [[selection of titles|Title Selection]]
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op-suffix: optionally, `list-item`
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op-parameter: the name of a [[field|TiddlerFields]], defaulting to <<.field title>>
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op-parameter-name: F
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op-output: a selection containing the first input title encountered for each distinct value of field <<.place F>>
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Each input title is processed in turn. The value of field <<.place F>> in the corresponding tiddler is examined.
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;each
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:As long as the field's value has not been encountered before, the title is appended to the output.
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;each:list-item
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:The value is treated as a [[title list|Title List]]. Each title in the list considered in turn. If it has not been encountered before, it is appended to the output.
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If a tiddler doesn't contain field <<.place F>>, it is treated as if the field's value was empty.
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<<.operator-examples "each">>
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