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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>
35 lines
1.7 KiB
Plaintext
35 lines
1.7 KiB
Plaintext
created: 20130827075900000
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modified: 20230321130421587
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tags: Concepts
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title: TextReference
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type: text/vnd.tiddlywiki
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A TextReference is a general purpose way to describe a fragment of text as either a field of a tiddler, or an index within a [[data tiddler|DataTiddlers]].
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In different situations, text references can be used to retrieve values, or to specify a value that should be modified.
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A TextReference consists of several parts:
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* The title of the target tiddler. If omitted, it defaults to the [[Current Tiddler]]
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* Either one of:
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** The name of a field (marked with `!!`)
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** The name of an index within a [[data tiddler|DataTiddlers]] (marked with `##`)
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* If both the field and index are omitted, the text field is used as the default
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Most of the parts of a text reference can be optional:
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* `tiddlerTitle` - the title [[field|TiddlerFields]] of the specified tiddler
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* `tiddlerTitle!!field` - a [[tiddler field|TiddlerFields]] (eg, `modified`, `modifier`, `type` etc)
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* `!!field` - a [[field|TiddlerFields]] of the current tiddler
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* `tiddlerTitle##propertyIndex` - extracts a named property from DataTiddlers
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Text references can be used in several places:
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* As [[indirect parameters|Filter Parameter]] within [[Filters]] (eg, `<$list filter="[tag{MyTag!!name}]"/>`)
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* As [[indirect attributes|HTML in WikiText]] of an element or widget (eg, `<$widget attrib={{Title!!description}}/>`)
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* As the parameter of a shortcut transclusion (eg, `{{MyTiddler!!title}}`)
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* As the `state` attribute of the RevealWidget and the LinkCatcherWidget
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<$macrocall $name=".tip" _="""Note the distinction between a text reference such as `foo!!bar` and a transclusion of a text reference such as `{{foo!!bar}}`"""/>
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