mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-14 13:54:50 +00:00
35 lines
1.7 KiB
Plaintext
35 lines
1.7 KiB
Plaintext
created: 20130827075900000
|
|
modified: 20161216173541948
|
|
tags: Concepts
|
|
title: TextReference
|
|
type: text/vnd.tiddlywiki
|
|
|
|
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]].
|
|
|
|
In different situations, text references can be used to retrieve values, or to specify a value that should be modified.
|
|
|
|
A TextReference consists of several parts:
|
|
|
|
* The title of the target tiddler. If omitted, it defaults to the [[Current Tiddler]]
|
|
* Either one of:
|
|
** The name of a field (marked with `!!`)
|
|
** The name of an index within a [[data tiddler|DataTiddlers]] (marked with `##`)
|
|
* If both the field and index are omitted, the text field is used as the default
|
|
|
|
Most of the parts of a text reference can be optional:
|
|
|
|
* `tiddlerTitle` - the title [[field|TiddlerFields]] of the specified tiddler
|
|
* `tiddlerTitle!!field` - a [[tiddler field|TiddlerFields]] (eg, `modified`, `modifier`, `type` etc)
|
|
* `!!field` - a [[field|TiddlerFields]] of the current tiddler
|
|
* `tiddlerTitle##propertyIndex` - extracts a named property from DataTiddlers
|
|
|
|
Text references can be used in several places:
|
|
|
|
* As [[indirect parameters|Filter Parameter]] within [[Filters]] (eg, `<$list filter="[tag{MyTag!!name}]"/>`)
|
|
* As [[indirect attributes|HTML in WikiText]] of an element or widget (eg, `<$widget attrib={{Title!!description}}/>`)
|
|
* As the operand of a shortcut transclusion (eg, `{{MyTiddler!!title}}`)
|
|
* As the `state` attribute of the RevealWidget and the LinkCatcherWidget
|
|
|
|
<$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}}`"""/>
|
|
|