AutoTaggerPlugin does probably exactly what you want, if you are only
using tags that already exist. Though if you want a special syntax for
inline tagging (e.g. "##newTag##"), I don't believe there's a plugin for
that yet.
For the record, you might also be interested in the IntelliTaggerPlugin:
http://tiddlywiki.abego-software.de/#IntelliTaggerPlugin
-- F.
Simply tag the respective tiddler with "excludeLists":
http://www.tiddlywiki.org/wiki/Tags#Special_Tags
> Instead of needing a special "inline" tagging syntax, when editing a
> tiddler for which a NEW tag is desired, simply *add the tag as
> normal*, in the tag edit field.
Sure, but this "inline tagging" would be the equivalent to the ease of
creating wiki links.
Now, I probably wouldn't use this myself, I just thought of it while
coming across TwitterNotes' two different ways of tagging:
http://twitternotes.com/faq#faq_6
> I suppose that it could be helpful for AutoTaggerPlugin to scan for an
> alternative set of tag values, independent of the tags that are
> currently defined in the document.
> [...]
> but I'm not sure if there is a compelling use-case for it.
I'd thought about suggesting this as well, but decided that there's
probably no real benefit in that.
-- F.