Is there a default template for {{transclusion}} ? Even for [[links]] ?

[Mat]

Fellow cj suggests that we should be able to use transclusions with templates to represent special links. That is a very interesting idea because it would mean you can create a link with custom functionality and custom appearance using short syntax like {{this||template}} 

Now, that still requires an explicit template argument. I hope we could also create a default template (so it doesn't even have to be stated) that tests things conditionally. E.g {{argument}} tiddler is tagged Foo then the transclusion shows something whereas if it is tagged Bar then it shows something else.

So, for the default transclusion, i.e what instructs to "show the text field",  is there a template tiddler somewhere? Or is this hard coded, perhaps in:

$:/core/modules/parsers/wikiparser/rules/filteredtranscludeblock.js

Actually...

If this could somehow be achived direcly with [[bracket link]] syntax, that'd be even better. I.e you type [[links]] as always but there's a template to control how/what the rendered result is. Is a template involved in this that, so to say, makes it from [[this]] into this ?

(E.g a full blown LinkWidget syntax is not practical in some cases, e.g during live note taking or when the typing must not disturb ones thoughts... which, btw, was the original purpose with wikitext, I believe)

Thank you.

<:-)

[Javier Eduardo Rojas Romero]

Hello Mat,

I think what you want ---generate links using a particular format for
each link, depending on some features of the target of the link---can be
achieved via macros, which give you the space to automate those checks
and generate the links according to their properties; you would have to
write those links like <<sl someTiddler>>, or <<sl "some other link">>,
but other than that I think it's serviceable.

If that sounds reasonable to you, check the macro definition below,
which formats links differently depending on whether they have either
the "bold" or the "italics" tag; I think it would be a good starting
point for you to introduce the templates you want to select
conditionally:

%%%%%%%%%%%%%%%%%%%%%%%%%% BEGIN TIDDLER %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\define sl(target)
<$list filter="[[$target$]tag[bold]]">
<$link to="$target$"><b>{{$target$!!title}}</b></$link>
</$list>

<$list filter="[[$target$]tag[italics]]">
<$link to="$target$"><i>{{$target$!!title}}</i></$link>
</$list>

<$list filter="[[$target$]!tag[italics]!tag[bold]]">
<$link to="$target$">{{$target$!!title}}</$link>
</$list>
\end
%%%%%%%%%%%%%%%%%%%%%%%%%%% END TIDDLER %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

On Wed, Mar 24, 2021 at 04:33:14AM -0700, Mat wrote:
> Fellow cj suggests <https://groups.google.com/g/tiddlywiki/c/Vt3CSHxnuc0> that

> we should be able to use transclusions with templates to represent special
> links. That is a very interesting idea because it would mean you can create
> a link with custom functionality and custom appearance using short syntax
> like {{this||template}}
>

> Now, that still requires an *explicit *template argument. I hope we could
> also create a *default *template (so it doesn't even have to be stated)

> that tests things conditionally. E.g {{argument}} tiddler is tagged Foo
> then the transclusion shows something whereas if it is tagged Bar then it
> shows something else.
>
> So, for the default transclusion, i.e what instructs to "show the text

> field", is there a *template* tiddler somewhere? Or is this hard coded,
> perhaps in:
>
> $:/core/modules/parsers/wikiparser/rules/filteredtranscludeblock.js
> <https://tiddlywiki.com/prerelease/#%24%3A%2Fcore%2Fmodules%2Fparsers%2Fwikiparser%2Frules%2Ffilteredtranscludeblock.js>

>
> Actually...
>
> If this could somehow be achived direcly with [[bracket link]] syntax,

> that'd be even better. I.e you type [[links]] as always but there's a *template
> *to control how/what the rendered result is. Is a template involved in this
> that, so to say, makes it from [[this]] into *this* ?

>
> (E.g a full blown LinkWidget syntax is not practical in some cases, e.g
> during live note taking or when the typing must not disturb ones
> thoughts... which, btw, was the original purpose with wikitext, I believe)
>
> Thank you.
>
> <:-)
>

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[Mat]

Thank you Javier. Yes, a macro could indeed create "contextual behaviour" I'm after, but I'm hoping for an even more minimalistic solution where I can just type [[link]] like normal, without even thinking about it. I guess typing {{translcusion}} is close enough also. But beyond this I feel that it takes attention from e.g the live note taking or the full-focus text that is being authored, etc.

I appreciate your input!

<:-)