Hello! There's a feature I've wanted to see in TiddlyWiki for a while: The ability, when using the $list widget, to create a variable corresponding to the position of the current item in the list. My interest in this feature is to use it for coordinates when generating SVGs. I took the initiative of making a crude working implementation. Modifying the list widget proved a bit intimidating, so I implemented a filter operator instead.
The new operator is attached and can be imported to a wiki. It is called *addposition*, and formats each title in the input list into some combination of title, list position, list size and customizable delimiters. The intended use is to glue positions onto each list item and un-glue them later with string operations. The filter operand is a format string, where T is replaced by the input title, P by the position and N by the size of the list. The default format (when calling addposition[], no operand) is "P:T". Prefix notation makes it easy to use the splitbefore operator. Example code: <table> <tr><th>index</th><th>tiddler</th></tr> <$list variable="item" filter="[all[shadows]regexp[list]sort[title] *addposition[P/N:T]*]"> <$set name=pos filter="[*<item>splitbefore[:]removesuffix[:]*]"> <$set name=tiddler filter="[*<item>removeprefix<pos>removeprefix[:]*]"> <tr> <td>^^#^^<<pos>></td> <td><<tiddler>></td> </tr> </$set> </$set> </$list> </table> If this function proves useful to others, it might be worth investigating position and/or size variable options in the $list widget itself, which would be somewhat more convenient to use. -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/137f215e-ffaa-4ccc-bf76-17871a360b45%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
$__ebalster_modules_filters_addposition.json
Description: application/json
