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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>
37 lines
1.8 KiB
Plaintext
37 lines
1.8 KiB
Plaintext
created: 20201214044413473
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modified: 20230711090833212
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tags: [[Filter Run Prefix]]
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title: Named Filter Run Prefix
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type: text/vnd.tiddlywiki
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In <<.from-version "5.1.23">> the named filter run prefixes where implemented. `:cascade`, `:map` and `:sort` have been added later as shown in the diagrams.
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A named filter run prefix can precede any [[run|Filter Run]] of a [[filter expression|Filter Expression]] in place of a [[shortcut run prefix|Shortcut Filter Run Prefix]].
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<$railroad text="""
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\start none
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\end none
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(
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[[<":all"> |"All Filter Run Prefix"]] |
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[[<":and"> |"And Filter Run Prefix"]] |
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[[<":cascade"> /"v5.2.1"/ |"Cascade Filter Run Prefix"]] |
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[[<":else"> |"Else Filter Run Prefix"]] |
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[[<":except"> |"Except Filter Run Prefix"]] |
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[[<":filter"> |"Filter Filter Run Prefix"]] |
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[[<":intersection"> |"Intersection Filter Run Prefix"]] |
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[[<":map"> /"v5.2.0"/ |"Map Filter Run Prefix"]] |
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[[<":or"> |"Or Filter Run Prefix"]] |
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[[<":reduce"> |"Reduce Filter Run Prefix"]] |
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[[<":sort"> /"v5.2.0"/ |"Sort Filter Run Prefix"]] |
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[[<":then"> /"v5.3.0"/ |"Then Filter Run Prefix"]]) [[run|"Filter Run"]]
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"""/>
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<<.tip "Compare named filter run prefix `:filter` with [[filter Operator]] which applies a subfilter to every input title, removing the titles that return an empty result from the subfilter">>
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<<.tip "Compare named filter run prefix `:reduce` with [[reduce Operator]] which is used to used to flatten a list of items down to a single item by repeatedly applying a subfilter">>
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<<.tip """Within the filter runs prefixed with `:reduce`, `:sort`, `:map` and `:filter`, the <<.var currentTiddler>> variable is set to the title of the tiddler being processed.<br>The value of currentTiddler outside the subfilter is available in the variable <<.var "..currentTiddler">> <<.from-version "5.2.0">>""" >>
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Also see: [[Interchangeable Filter Run Prefixes]]
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