> is it possible that something else might change the
> contents of ExampleTiddler even though the user didn't open
> ExampleTiddler for editing*?

Yes, it is definitely possible, and even fairly common.

There are many plugins that modify stored tiddler content (or rename
tiddlers, or even *delete* tiddlers), without any user-initiated
editing activity.  For example:

    http://www.TiddlyTools.com/#QuickNotePlugin
    http://www.TiddlyTools.com/#CommentPlugin
    http://www.TiddlyTools.com/#DiscussionPlugin
    http://www.TiddlyTools.com/#PasteUpPlugin
    http://www.TiddlyTools.com/#ListboxPlugin
    http://www.TiddlyTools.com/#TaskTimerPlugin
    http://www.TiddlyTools.com/#PanelManagerPlugin

and many, many more...

So, it would seem that your proposed technique of tracking the start/
end offsets of the relevant tiddler content won't be reliable, unless
you can also ensure that no other tiddler-modifying plugins are
installed in the same document (or at least, make sure their
functionality is never triggered while your interface is being used).

-e
Eric Shulman
TiddlyTools / ELS Design Studios

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