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* Improve Filter Syntax documentaion / navigation * update links and missing diagrams * rename legacy prefix to shortcut prefix * Update editions/tw5.com/tiddlers/filters/Filter Operators.tid Co-authored-by: yaisog <m@rcuswinter.de> * Update editions/tw5.com/tiddlers/filters/syntax/And Filter Run Prefix.tid Co-authored-by: yaisog <m@rcuswinter.de> * Update editions/tw5.com/tiddlers/filters/syntax/Sort Filter Run Prefix.tid Co-authored-by: yaisog <m@rcuswinter.de> * Update editions/tw5.com/tiddlers/filters/syntax/Sort Filter Run Prefix.tid Co-authored-by: yaisog <m@rcuswinter.de> * Update editions/tw5.com/tiddlers/filters/syntax/Sort Filter Run Prefix.tid Co-authored-by: yaisog <m@rcuswinter.de> * Update editions/tw5.com/tiddlers/filters/syntax/Cascade Filter Run Prefix.tid Co-authored-by: yaisog <m@rcuswinter.de> * Update editions/tw5.com/tiddlers/filters/syntax/And Filter Run Prefix.tid Co-authored-by: yaisog <m@rcuswinter.de> * add most changes a suggested by yaisog * fix copy / paste from-version * replace operand with parameter in the docs * fix typo * fix typos and improve railroad diagrams consistency * move "new from version" info for filter run prefixes below the table * fix typo transclusion and substitution * Move Filters tiddler to the top level in the TOC * wip-breadcrumbs * breadcrumbs & breadcrumbsList macro final * remove files that do not belong to this PR * restore release banner * add simple / story mode to breadcrumbs * .breadcrumbs macro update comments * new breadcrumbs CSS, woks with small screens * make CSS configurable using hidden-settings * improve CSS fro small screens * remove the initial: recursiveParentTag macro * improve location info for breadcrumbs nav. add "alt-text" for Edge ::after element * breadcrumbs add mode=field * bc add initial docs * breadcrumbsField will also respect the story ordering * add configurable global filterMode setting * improve arrow CSS for browser zooming * add bc links use bc-caption if caption field is non-empty * breadcrumbs improve comments * breadcrumbs aria-lable uses caption if there is one * breadcrumbs improve documentation * breadcrumbs improve docs for sort param * fix showArrows docs * remove .bc-link aria-label .. it's not needed if caption is resolved properly * use subfilter instead of enlist to evaluate the "excluded" variable. Be consistent with toc-macros * remove breadcrumbs macros - they have their own PR now * resolve conflict * add back doc-macros tiddler * integrate :then filter run prefix * remove .breadcrumbs macros and their config tiddlers * fix typos as requested --------- Co-authored-by: yaisog <m@rcuswinter.de>
30 lines
1.6 KiB
Plaintext
30 lines
1.6 KiB
Plaintext
caption: subfilter
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created: 20181031175129475
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modified: 20211217135706478
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op-input: a [[selection of titles|Title Selection]] passed as input to the subfilter
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op-neg-input: a [[selection of titles|Title Selection]] passed as input to the subfilter
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op-neg-output: those input titles that are <<.em not>> returned from the subfilter <<.place S>>
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op-output: the [[selection of titles|Title Selection]] returned from the subfilter <<.place S>>
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op-parameter: a [[filter expression|Filter Expression]]
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op-parameter-name: S
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op-purpose: select titles from the parameter interpreted as a [[filter expression|Filter Expression]]
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tags: [[Filter Operators]] [[Field Operators]] [[Selection Constructors]] [[Negatable Operators]] [[Selection Constructors: Conditional]]
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title: subfilter Operator
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type: text/vnd.tiddlywiki
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<<.from-version "5.1.18">> Note that the <<.op subfilter>> operator was introduced in version 5.1.18 and is not available in earlier versions.
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<<.tip " Literal filter parameters cannot contain square brackets but you can work around the issue by using a variable:">>
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```
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<$set name="myFilter" value="[tag[one]]">
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<$list filter="[all[tiddlers]subfilter<myFilter>]">
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...
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```
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<<.tip "Compare with the similar [[filter|filter Operator]] operator which runs a subfilter against each title, returning those titles that return a non-empty list (and discards the results of the subfilter)">>
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The <<.op subfilter>> operator will act as a [[constructor|Selection Constructors]] whenever the filter defined by its parameter is a [[constructor|Selection Constructors]]. Otherwise, it will act as a [[modifier|Selection Constructors]].
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<<.operator-examples "subfilter">>
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