Inline Facebook Comment/Status Switching Based On Privacy Settings
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This is a quick question to see if what I'm looking for already exists in the wild, or if it can even be accomplished with permissions currently allowed via FBML and/or FQL.

I would like to be able to automatically alternate words/phrases INLINE within my comments and status updates (and potentially ANY posts to my Wall or Timeline), using some simple markup like a Javascript "OR" separator or something along those lines.

An illustration may be more helpful:

Comment:
That's one heck||hell of a burger.

Where the first word on the left of || only gets displayed to users in one of my friend lists (Family and Work, for instance), and the other word on the right of || only gets displayed to users in a different list or set of lists (i.e., Close Friends).

I don't care how it is implemented.  That is to say, these can be custom mappings that I create within an app, so I would have to strictly define which words displayed to which lists.  Or it can be something that's processed on the fly, so that text immediately to the left of || always displays to one list or set of lists, and text to the right of || always displays to a second list/set.  

Additionally, if the first character on one side of || is double-quotes, that would mean to alternate a whole phrase rather than just a single word.  i.e.:

Comment:
I just "don't give a rat's ass!"||"couldn't care less."

If this isn't even possible, perhaps I just need to submit a request to Facebook developers and stop looking for a solution to build it myself.  But if it can be accomplished, where would I need to start looking to extend the parsing of comments/statuses to capture the || and output the correct alternative based on who's viewing it?

I suppose an ugly workaround might involve an app parsing my comments/statuses and automatically creating duplicate (nearly identical) posts with the correct privacy settings applied to each one.  But that's not really what I'm after.

I've been looking through the developer documentation, but can't find anything specific to handling of comments/posts INLINE like this.

Any guidance or suggestions for a starting place to research this possibility further would be greatly appreciated.