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Code Issues Releases Wiki Activity

Replace Macro with Myfun when Calling Example Function (#8277)

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Mohammad Rahmani 2024-07-28 16:10:58 +03:30 committed by GitHub
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4 changed files with 16 additions and 16 deletions
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14
editions/tw5.com/tiddlers/functions/Functions.tid
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@ -1,5 +1,5 @@
created: 20221009124003601
modified: 20230419103154328
modified: 20240619211228560
tags: Concepts Reference
title: Functions
type: text/vnd.tiddlywiki
@ -11,17 +11,17 @@ type: text/vnd.tiddlywiki
Functions are usually defined with the [[Pragma: \function]]:
```
\function my-function(parameter:"2")
[<parameter>multiply[1.5]]
\function myfun(param:"2")
[<param>multiply[1.5]]
\end
```
Functions can be invoked in several ways:
* Directly transclude functions with the syntax `<<myfn param:"value">>`
* Assign functions to widget attributes with the syntax `<div class=<<myfn param:"value">>>`
* Invoke functions via the [[function Operator]] with the syntax `[function[myfn],[value],...]`
* Directly invoke functions whose names contain a period as custom filter operators with the syntax `[my.fn[value]]` or `[.myfn[value]]`
* Directly transclude functions with the syntax `<<myfun param:"value">>`
* Assign functions to widget attributes with the syntax `<div class=<<myfun param:"value">>>`
* Invoke functions via the [[function Operator]] with the syntax `[function[myfun],[value],...]`
* Directly invoke functions whose names contain a period as custom filter operators with the syntax `[my.fun[value]]` or `[.myfun[value]]`
!! How Functions Work

10
editions/tw5.com/tiddlers/variables/Behaviour of invoked variables depends on how the variable was declared.tid
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@ -1,5 +1,5 @@
created: 20230726145210484
modified: 20230726145757234
modified: 20240619211734149
tags: [[Variable Usage]]
title: Behaviour of invoked variables depends on how the variable was declared
type: text/vnd.tiddlywiki
@ -8,19 +8,19 @@ type: text/vnd.tiddlywiki
\procedure p1(a1) $a1$ - <<__a1__>> - <<a1>>
\function f1(a1) "$a1$" "-" [<__a1__>] ="-" [<a1>] :and[join[ ]]
Invoked in normal wikitext context: `<$transclude $variable=macro/>` or `<<macro>>`
Invoked in normal wikitext context: `<$transclude $variable=myvar/>` or `<<myvar>>`
{{Behaviour of variables invoked via normal wikitext}}
Invoked via widget attribute: `<div class=<<macro>>/>`
Invoked via widget attribute: `<div class=<<myvar>>/>`
{{Behaviour of variables invoked via widget attributes}}
Invoked via filter operator parameter: `[<macro>]`
Invoked via filter operator parameter: `[<myvar>]`
{{Behaviour of variables invoked via filter operator parameter}}
Invoked via function call in a filter expression: `[function[macro]]`
Invoked via function call in a filter expression: `[function[.myfun]]`
{{Behaviour of variables invoked via filter expression function call}}

4
editions/tw5.com/tiddlers/variables/Behaviour of variables invoked via normal wikitext.tid
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created: 20230726142925020
modified: 20230726150648189
modified: 20240619211452297
tags: [[Variable Usage]]
title: Behaviour of variables invoked via normal wikitext
type: text/vnd.tiddlywiki
@ -8,4 +8,4 @@ type: text/vnd.tiddlywiki
|!how declared|!behaviour|
|\define|All wikitext and variable substitution and textual substitution takes place|
|<<.wlink SetWidget>>, <<.wlink LetWidget>>, <<.wlink VarsWidget>>, \procedure, \widget|All wikitext and variable substitution takes place|
|\function|Invoking a function in this way (`<<macro>>`) is a synonym for `<$text text={{{[function[macro]]}}}/>`. As with any filtered transclusion (i.e. triple curly braces), all results except the first are discarded|
|\function|Invoking a function in this way (`<<.myfun>>`) is a synonym for `<$text text={{{[function[.myfun]]}}}/>`. As with any filtered transclusion (i.e. triple curly braces), all results except the first are discarded|

4
editions/tw5.com/tiddlers/variables/Behaviour of variables invoked via widget attributes.tid
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@ -1,5 +1,5 @@
created: 20230726143332803
modified: 20230726150616232
modified: 20240619210723396
tags: [[Variable Usage]]
title: Behaviour of variables invoked via widget attributes
type: text/vnd.tiddlywiki
@ -8,4 +8,4 @@ type: text/vnd.tiddlywiki
|!how declared|!behaviour|
|\define|Textual substitution of parameters is performed on the body text. No further processing takes place. The result after textual substitution is used as the attribute's value|
|<<.wlink SetWidget>>, <<.wlink LetWidget>>, <<.wlink VarsWidget>>, \procedure, \widget|Body text is retrieved as-is and used as the attribute's value.|
|\function|When a function is invoked as `<div class=<<macro>>/>`, it is a synonym for `<div class={{{[function[macro]]}}}/>`. As with any filtered transclusion (i.e. triple curly braces), all results except the first are discarded. That first result is used as the attribute's value. Note that functions are recursively processed even when invoked in this form. In other words a filter expression in a function can invoke another function and the processing will continue|
|\function|When a function (e.g. `.myfun`) is invoked as `<div class=<<.myfun>>/>`, it is a synonym for `<div class={{{[function[.myfun]]}}}/>`. As with any filtered transclusion (i.e. triple curly braces), all results except the first are discarded. That first result is used as the attribute's value. Note that functions are recursively processed even when invoked in this form. In other words a filter expression in a function can invoke another function and the processing will continue|