TiddlyWiki5/editions/test/tiddlers/tests/data/custom-operators/Simple.tid

title: CustomOperators/Simple
description: Simple custom operator usage
type: text/vnd.tiddlywiki-multiple
tags: [[$:/tags/wiki-test-spec]]

title: Output

\whitespace trim

\function .multiplybytwo()
[multiply[2]]
\end

<$text text={{{ [[123].multiplybytwo[]] }}}/>
|
<$text text={{{ [[123]function[.multiplybytwo]] }}}/>

+
title: ExpectedResult

<p>246|246</p>
Experimental support for custom filter operators Just as we can define custom widgets we can also define custom parameterised filter operators 2022-05-06 14:01:17 +00:00			`title: CustomOperators/Simple`
			`description: Simple custom operator usage`
			`type: text/vnd.tiddlywiki-multiple`
			`tags: [[$:/tags/wiki-test-spec]]`

			`title: Output`

Introduce function operator for calling functions Can invoke any functions, not just those start with a period. And can pass zero parameters (in contrast when invoked as a custom filter operator there's no way to omit the first parameter). 2022-05-30 17:05:54 +00:00			`\whitespace trim`

Require period prefix for custom filter operator functions To ensure that custom filter operators cannot clash with future core operators. 2022-05-23 15:40:21 +00:00			`\function .multiplybytwo()`
Experimental support for custom filter operators Just as we can define custom widgets we can also define custom parameterised filter operators 2022-05-06 14:01:17 +00:00			`[multiply[2]]`
			`\end`

Require period prefix for custom filter operator functions To ensure that custom filter operators cannot clash with future core operators. 2022-05-23 15:40:21 +00:00			`<$text text={{{ [[123].multiplybytwo[]] }}}/>`
Introduce function operator for calling functions Can invoke any functions, not just those start with a period. And can pass zero parameters (in contrast when invoked as a custom filter operator there's no way to omit the first parameter). 2022-05-30 17:05:54 +00:00			`\|`
			`<$text text={{{ [[123]function[.multiplybytwo]] }}}/>`

Experimental support for custom filter operators Just as we can define custom widgets we can also define custom parameterised filter operators 2022-05-06 14:01:17 +00:00			`+`
			`title: ExpectedResult`

Introduce function operator for calling functions Can invoke any functions, not just those start with a period. And can pass zero parameters (in contrast when invoked as a custom filter operator there's no way to omit the first parameter). 2022-05-30 17:05:54 +00:00			`<p>246\|246</p>`