mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-04 23:39:57 +00:00
56 lines
2.2 KiB
Plaintext
56 lines
2.2 KiB
Plaintext
caption: Procedure Calls
|
|
created: 20221007130006705
|
|
modified: 20230419103154329
|
|
tags: WikiText Procedures
|
|
title: Procedure Calls
|
|
type: text/vnd.tiddlywiki
|
|
|
|
!! Introduction
|
|
|
|
This tiddler describes the different ways in which [[procedure|Procedures]] can be called.
|
|
|
|
!! Procedure Call Transclusion Shortcut
|
|
|
|
To call a [[procedure|Procedures]], place `<<`double angle brackets`>>` around the name and any parameter values.
|
|
|
|
```
|
|
<<my-procedure param:"This is the parameter value">>
|
|
```
|
|
|
|
By default, parameters are listed in the same order as in the procedure definition. A parameter can be labelled with its name and a colon to allow them to be listed in a different order.
|
|
|
|
If no value is specified for a parameter, the default value given for that parameter in the [[procedure definition|Procedure Definitions]] is used instead. (If no default value was defined, the parameter is blank).
|
|
|
|
Each parameter value can be enclosed in `'`single quotes`'`, `"`double quotes`"`, `"""`triple double quotes`"""` or `[[`double square brackets`]]`. Triple double quotes allow a value to contain almost anything. If a value contains no spaces or single or double quotes, it requires no delimiters.
|
|
|
|
See the discussion about [[parser modes|WikiText parser mode: macro examples]]
|
|
|
|
!! Procedure Calls with <<.wlink TranscludeWidget>> Widget
|
|
|
|
The shortcut syntax expands to the <<.wlink TranscludeWidget>> widget with the `$variable` attribute specifying the name of the procedure to transclude.
|
|
|
|
```
|
|
<$transclude $variable="my-procedure" param="This is the parameter value"/>
|
|
```
|
|
|
|
The widget itself offers greater flexibility than the shortcut syntax, including the ability to specify dynamic parameter values.
|
|
|
|
!! Assigning Procedure Calls to Attribute Values
|
|
|
|
The text of a procedure can be directly assigned to an attribute of a widget or HTML element. The result of the procedure is not wikified, which means that [[parameter handling|Procedure Parameter Handling]] does not take place.
|
|
|
|
```
|
|
<div class=<<myclasses>>>
|
|
...
|
|
</div>
|
|
```
|
|
|
|
!! Using Procedure Calls in Filters
|
|
|
|
Procedure calls can be used in filters. The text is not wikified which again means that the parameters will be ignored.
|
|
|
|
```
|
|
<$list filter="[<my-procedure>]">
|
|
...
|
|
</$list>
|
|
``` |