On Monday, December 3, 2018 at 6:29:10 AM UTC-8, Hubert wrote:
>
> I've noticed that when the title of a tiddler being listed in another
> tiddler is changed, the list of the listing tiddler is also adjusted to
> reflect the modified title of the listed tiddler. However, this automatic
> adjustment only seems to happen if the parameter for the listed filter is
> set to none; if the parameter is set to an arbitrary value matching a field
> whose name is other than 'list; the automatic adjustment is not taking
> place. Is this by design? If so, can we extend this functionality to fields
> not named 'list'?
>
As you've noted, the "list" field has special handling that allows for
automatic substitution when a title is changed. This is possible because
the "list" field is always treated as a *space-separated list of tiddler
titles*. Thus, it can be parsed for individual title matches to recognize
when a title has been changed and replace only that title text within the
field value.
The problem with doing this for other fields is that they can contain
spaces that are just normal text not intended to be treated as separators
between titles.
Consider two fields where
list = "foo bar baz" (a list of three tiddler titles)
and
otherfield = "this ice cream bar is tasty" (some normal text)
If you change the title of the tiddler named "bar" to "mumble", then the
value of "list" is updated to "foo mumble baz"
However, the value of "otherfield" should remain unchanged even though it
contains "bar", because that is just normal text.
Currently, ALL field content except for the "list" field are treated as
normal text (see note below). To achieve what you want, we would need to
be able to explicitly specify which fields are to have the special list
handling to differentiate them from regular fields containing text with
spaces.
note: standard tiddler date fields ("created" and "modified") are *stored*
as normal text using format "YYYY0MM0DD0hh0mm0ss0XXX" (e.g.
"20150117190213631" for January 17, 2015 at 19:02:13.631). These fields
can be formatted for date/time *display* using the <$view ...
format="date"...> widget.
-e
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