As long as your input had no spaces, the result was interpreted as a
tiddler title and worked fine as an input. Once you inserted spaces, it
interpreted the result as a series of short tiddler titles (which didn't
happen to exist).
There is a lot of documentation at TiddlyWiki.com, but it hasn't been
unified into a friendly step-by-step guide. There are, several separate
tiddlers that are nicely written. For instance,
"Introduction to filter notation"
if you read it to the bottom, it explains that you can use single curly
brackets as a text reference. You can also use < and > for inserting
variable values.
But this notation is different in some ways than other wikitext. Double
curly brackets are used for simple transclusion:
{{HelloThere}}
Triple transclusions means to treat the inside part as a filter expression:
{{[tag[HelloThere]}}}
HTH
-- Mark
On Tuesday, October 23, 2018 at 12:41:22 PM UTC-7, Rollo ro wrote:
>
> Hi,
> it actually worked with the first code, as long as I typed a title without
> spaces. I don't know why.
>
> It seems that there is a lack of important information in the
> documentation. I don't find anywhere that {variable} adds square brackets
> around the result, so I wasn't able to build the correct expression. With
> that piece of information, I understand it. Thanks!
>
> In general the syntax is still very unclear to me. Can a definition be
> given what
>
> {*anything*}
>
> evaluates to, considering that *anything* itself can be a title, a
> variable, the result of* another pair of curly brackets*, etc? Because it
> seems that the brackets can have a totally different meaning and sometimes
> only one bracket is needed, and sometimes 2 or 3:
>
> {$:/state/new-button-caption}
> {{MyTiddler}}
> {{{ [tag[mechanism]] }}}
>
> I don't understand that logic.
>
>
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