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TiddlyWiki5/editions/tw5.com/tiddlers/wikitext/Variable Attribute Values.tid
Saq Imtiaz 3825e2579f
Adds Text substitution support in widget attributes and new operator (#7526)
* feat: new text substitution support, first pass

* fix: use the widget method instead of evaluating a filter

* revert to earlier implementation that emulates macro syntax

* fix: capitalize comments

* feat: add support for triple backticks for substituted attributes

* docs: added docs for substitute operator

* chore: more docs tweaks

* docs: substituted attributes, refactored docs for widget attributes

* docs: fixed typo

* docs: more examples for substituted attributes

* docs: updated prior documentation on concatenating text and variables

* docs: documentation corrections

* Update editions/tw5.com/tiddlers/filters/examples/substitute Operator (Examples).tid

Co-authored-by: btheado <brian.theado@gmail.com>

---------

Co-authored-by: btheado <brian.theado@gmail.com>
2023-06-24 14:57:15 +01:00

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created: 20230615045239825
modified: 20230615045312961
tags: [[Widget Attributes]] WikiText
title: Variable Attribute Values
type: text/vnd.tiddlywiki
Variable attribute values are indicated with double angle brackets around a [[macro invocation|Macro Calls]]. For example:
```
<div title=<<MyMacro "Brian">>>
...
</div>
```
<<.warning "The text from the definition of the macro will be retrieved and text substitution will be performed (i.e. <<.param $param$>> and <<.param &#36;(...)&#36;>> syntax). The value of the attribute value will be the resulting text. Any wiki syntax in that text (including further macro calls and variable references) will be left as-is.">>