mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-14 13:54:50 +00:00
52 lines
2.0 KiB
Plaintext
52 lines
2.0 KiB
Plaintext
|
created: 20230726145210484
|
||
|
|
modified: 20230726145757234
|
||
|
|
tags: [[Variable Usage]]
|
||
|
|
title: Behaviour of invoked variables depends on how the variable was declared
|
||
|
|
type: text/vnd.tiddlywiki
|
||
|
|
|
||
|
|
\define m1(a1) $a1$ - <<__a1__>> - <<a1>>
|
||
|
|
\procedure p1(a1) $a1$ - <<__a1__>> - <<a1>>
|
||
|
|
\function f1(a1) "$a1$" "-" [<__a1__>] ="-" [<a1>] :and[join[ ]]
|
||
|
|
|
||
|
|
Invoked in normal wikitext context: `<$transclude $variable=macro/>` or `<<macro>>`
|
||
|
|
|
||
|
|
{{Behaviour of variables invoked via normal wikitext}}
|
||
|
|
|
||
|
|
Invoked via widget attribute: `<div class=<<macro>>/>`
|
||
|
|
|
||
|
|
{{Behaviour of variables invoked via widget attributes}}
|
||
|
|
|
||
|
|
Invoked via filter operator parameter: `[<macro>]`
|
||
|
|
|
||
|
|
{{Behaviour of variables invoked via filter operator parameter}}
|
||
|
|
|
||
|
|
Invoked via function call in a filter expression: `[function[macro]]`
|
||
|
|
|
||
|
|
{{Behaviour of variables invoked via filter expression function call}}
|
||
|
|
|
||
|
|
!! Examples
|
||
|
|
|
||
|
|
Below is an example macro, procedure and function definition. All three forms of parameter substitution `$a1$`, `<<__a1__>>`, and `<<a1>>` are included in each definition. The output helps illustrate when each form of substitution will or will not have affect.
|
||
|
|
|
||
|
|
```
|
||
|
|
\define m1(a1) $a1$ - <<__a1__>> - <<a1>>
|
||
|
|
\procedure p1(a1) $a1$ - <<__a1__>> - <<a1>>
|
||
|
|
\function f1(a1) $a1$ "-" [<__a1__>] ="-" [<a1>] :and[join[ ]]
|
||
|
|
```
|
||
|
|
|
||
|
|
| !Variable transclusion|!output |
|
||
|
|
| `<<m1 foo>>`|<<m1 foo>>|
|
||
|
|
| `<<p1 foo>>`|<<p1 foo>>|
|
||
|
|
| `<<f1 foo>>`|<<f1 foo>>|
|
||
|
|
| !Widget attribute|!output |
|
||
|
|
| `<$text text=<<m1 foo>>/>`|<$text text=<<m1 foo>>/>|
|
||
|
|
| `<$text text=<<p1 foo>>/>`|<$text text=<<p1 foo>>/>|
|
||
|
|
| `<$text text=<<f1 foo>>/>`|<$text text=<<f1 foo>>/>|
|
||
|
|
| !Filter operator parameter|!output |
|
||
|
|
| `[<m1 foo>]`|<$text text={{{[<m1 foo>]}}}/>|
|
||
|
|
| `[<p1 foo>]`|<$text text={{{[<p1 foo>]}}}/>|
|
||
|
|
| `[<f1 foo>]`|<$text text={{{[<f1 foo>]}}}/>|
|
||
|
|
| !Function call in filter expression|!output |
|
||
|
|
| `[function[m1],[foo]]`|<$text text={{{[function[m1],[foo]]}}}/>|
|
||
|
|
| `[function[p1],[foo]]`|<$text text={{{[function[p1],[foo]]}}}/>|
|
||
|
|
| `[function[f1],[foo]]`|<$text text={{{[function[f1],[foo]]}}}/>|
|