37 lines
1.8 KiB
Plaintext
37 lines
1.8 KiB
Plaintext
caption: all
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created: 20140410103123179
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modified: 20230321131457669
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op-input: ignored, unless the parameter is empty
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op-output: the titles that belong to all the specified categories
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op-parameter: zero or more categories
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op-purpose: find all titles of a fundamental category
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tags: [[Filter Operators]] [[Common Operators]] [[Selection Constructors]] [[Selection Constructors: Conditional]]
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title: all Operator
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type: text/vnd.tiddlywiki
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The parameter specifies zero or more fundamental categories using the following [[filter step|Filter Step]] syntax:
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<$railroad text="""
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\start none
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\end none
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<-"all"-> ( "[" | "<" | "{" )
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[{: ("current" | "missing" |: "orphans" | "shadows" | "tags" | "tiddlers" ) +"+" }]
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( "]" | ">" | "}" )
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"""/>
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|!Category |!Members |!Sorted |
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|^`current` |just the [[current tiddler|Current Tiddler]] |^-- |
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|^`missing` |all non-existent tiddlers to which there is at least one [[hard link|Hard and Soft Links]] |^no |
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|^`orphans` |all tiddlers to which there are <<.em no>> hard links |^by title |
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|^`shadows` |all the [[shadow tiddlers|ShadowTiddlers]] that exist, including any that have been overridden with non-shadow tiddlers |^no |
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|^`tags` |all the tags in use on non-shadow tiddlers |no |
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|^`tiddlers` |all the non-shadow tiddlers that exist |no |
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If the parameter specifies more than one category, they are processed from left to right. The overall output is initially empty, and each category's output is [[dominantly appended|Dominant Append]] to it in turn. Unrecognised categories contribute nothing to the output.
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As a special case, if the parameter is empty, the output is simply a copy of the input. This can be useful when the parameter is a [[soft parameter|Filter Parameter]].
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The <<.olink is>> operator is similar, but its scope is restricted to its input.
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<<.operator-examples "all">>
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