Someone had an Emacs style indentation engine?

[Steven T. Hatton]

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A long time ago, someone mentioned having worked on an Emacs style indentation 
engine for Kate, and/or KDevelop.  Is that available?  

I'm not sure who to approach the task of building something of that nature.  
Something tells me Antlr would be involved. Beyond that, I would have to 
start pretty much from scratch.

If anybody has used XEmacs for writing code, or XML, he or she knows what I'm 
talking about, and why I want it.

STH
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