Jean-Pierre,
Please do say what you want to do with the first word / letter ?
- Below are some examples that should solve your issues
- Filters as a rule generate one output so I like to focus on the
selected tiddler then process it later.
Thanks for sharing code that works on TiddlyWiki.com, my examples do so as
well.
If it is only for some display purpose you can keep the list focused on the
selected tiddlers and use triple curly braces (filtered Transclusions)
<$list filter="[tag[TableOfContents]]">
{{{ [all[current]split[]first[]] }}}, {{{ [all[current]split[ ]first[]]
}}}, <$link/><br>
</$list>
You can also use HTML
<style>
p.uppercase {
text-transform: uppercase;
}
p.lowercase {
text-transform: lowercase;
}
p.capitalize {
text-transform: capitalize;
}
</style>
<$list filter="[tag[TableOfContents]]">
<p class="uppercase"><<currentTiddler>></p>
<p class="lowercase"><<currentTiddler>></p>
<p class="capitalize"><<currentTiddler>></p>
<hr>
</$list>
But if you need the 1st letter and first word as variables do this.
<$list filter="[tag[TableOfContents]]">
<$set name=1st value={{{ [all[current]split[]first[]] }}}>
<$set name=1stWord value={{{ [all[current]split[ ]first[]] }}}>
<<1st>> <<1stWord>> <$link/><br>
</$set></$set>
</$list>
Regards
Tones
On Tuesday, 27 October 2020 09:10:59 UTC+11, Jean-Pierre Rivière wrote:
>
> good points. OK, I'll do the rwo lists imbicated. Yet, I cannot see why I
> get exactly the same results in the two lists below.
>
>
> <$set name="chrome" value="[tag[Chrome]]">
> <$list
> filter="[subfilter<chrome>lowercase[]sentencecase[]splitregexp[\W]!is[blank]addprefix[
>
> * ]]"/>
> </$set>
>
> <$set name="chrome" value="[tag[Chrome]]">
> <$list
> filter="[tag[Chrome]lowercase[]sentencecase[]splitregexp[\W]!is[blank]addprefix[
>
> * ]]"/>
> </$set>
>
> which is
>
> * noteself * by * danielo * rodr * guez * savetiddlers * extension * for *
> chrome * and * firefox * by * buggyj * Emergency * tiddler * export *
> Saving * on * tiddlyspot * Saving * to * a * git * service * Saving * via *
> a * minimal * ruby * server * Saving * via * webdav * Saving * with * the *
> html5 * fallback * saver * Tiddlydrive * add * on * for * google * drive *
> by * joshua * stubbs * Tiddlywiki * cloud * Timimi * webextension * and *
> native * host * by * riz
>
> And same with
>
> <$set name="chrome" value="[tag[Chrome]]">
> <$list
> filter="[subfilter<chrome>lowercase[]sentencecase[]splitregexp[\W]!is[blank]first[]]"/>
> </$set>
>
> <$set name="chrome" value="[tag[Chrome]]">
> <$list
> filter="[tag[Chrome]lowercase[]sentencecase[]splitregexp[\W]!is[blank]first[]]"/>
> </$set>
>
> where the result is:
>
> noteself
>
> (from ~"noteself" by danielo rodríguez~)
>
> What's the use of subfilter in real life? It seems such a strange beast.
> I'm really confused. I wish there be an equivalent of map() found in
> functional language. I thought subfilter was just that but visibly it is
> not.
>
> with map I would code:
> <$set name="chrome" value="[tag[Chrome]]">
> <$list
> filter="[subfilter<chrome>lowercase[]sentencecase[]splitregexp[\W]!is[blank]first[]]"/>
> </$set>
>
> In fact, I'm perplex when reading the subfilter help and the examples
> don't help me. In particular, I am at odds with the input and the parameter
> S. S is said to be a filter expression. And the outpur is the selection of
> titles returned from the subfilter S. Let's see.
>
> in the complete filter below, what is the input and what is the parameter
> S?
>
> [subfilter[one two three]addsuffix[!]]
>
> input should be: every tiddlers (but system tiddlers).
> S is <<one two three>> and so S is a collection of three tiddler titles.
> The output of subfilter is S, right?
> Although it does not seems so because [[one two three]addsuffix[!]] does
> not produce the same result ("one two three!" instead of "one! two!
> three!").
>
> Le lundi 26 octobre 2020 à 19:00:52 UTC+1, Mark S. a écrit :
>
>> There are two mistakes in this:
>>
>> <list filter="[subfilter<chrome> splitregexp[\W]!is[blank]first[]]"/>
>>
>> 1. It should be $list. 2. There is a space in front of splitregexp.
>>
>> Unfortunately, using a subfilter won't allow you to process the tiddlers
>> the way you want. You will need a nested loop, with the outer list finding
>> the tiddlers and the inner list extracting the first word.
>>
>>
>>
>> On Monday, October 26, 2020 at 10:41:29 AM UTC-7, Jean-Pierre Rivière
>> wrote:
>>>
>>> I have a liste of tiddlers (got with something like filter="[tag[foo]]")
>>> of which I want the first word/letter.
>>>
>>> For only the last single title I get the first word with
>>> filter="[tag[Chrome]last[]splitregexp[\W]!is[blank]first[]]"
>>>
>>> Now, how to get it for all the titles, entirely within a single filter
>>> if possible (I'd rather avoid a list widget to achieve that)? Definitely
>>> something to do with subfilter. But no, I still can't get it. Frustrating.
>>> My initial coding:
>>>
>>> <$set name="chrome" value="[tag[Chrome]]">
>>> <list filter="[subfilter<chrome> splitregexp[\W]!is[blank]first[]]"/>
>>> </$set>
>>>
>>>
>>>
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