How to modify the text before it's used to find matches

[ChangePlaces]

Consider a list of tags: elephants,apples,guns,weather etc

and the user enters tags in a textbox separated by pipes, like: apples|weather|tomatoes

The user is able to enter their own tags in the textbox. I'd like to be able to suggest tags per tag entry, so, if the textbox contained: apples|wea I'd like to be able to suggest weather. This means that I need to be able to evaluate the text as if the | is the start of a new textbox.

What would be the best way to achieve this? I'm thinking a new property that's a callback function that modifies the text before it's evaluated for matches?

[Nimgoble]

Hey @ChangePlaces,

I can think of a couple of ways to do this. Let me play around with it and get back to you.