Looking for a way to create a list of all ToDo's without a due date

[Krit1960]

I want to build a GTD style Todo system, I can create filters to have list with All today, All planned etc... but can't seem to find a way to filter all items with no due date assigned.

[runout-at]

no. if any kind of invalid date is given the actual date will be used.
you are welcome to provide a pull request for the feature.
look in syntax/list.php for function analyseDate($date)

i have moved my projects away from github to gitlab [0] for some reasons and doesn't contribute here anymore.

[0] https://gitlab.com/dokuwiki-plugins

[einhirn]

The work for selecting todo items without due dates assigned will probably have to go into "isRequestedTodo" because a todo is only listed if this returns true. But from a quick look I don't see how exactly I would go and implement it - I guess you'd need to add some kind of parameter to the todolist tag that gets parsed in the "handle"-Function and then react to it in the aforementioned function to check wether the current todo has a due date or not...

[MacBoeck]

I was looking for an inverse filter: todos that don't have either start and/or due. So I could have a catch-the-rest list. Feature request or already possible but I missed it?